Bell-shaped fan cover type cooling fan structure with circumferential buffering and limiting functions

Abstract

The utility model belongs to the field of cooling fans, and provides a bell-shaped fan cover type cooling fan structure with a circumferential buffering and limiting function, which comprises a bell-shaped fan cover, an inner connecting convex block, a buffering and limiting strip, a motor and fan blades. Wherein the bell-shaped fan cover is provided with an inner ring side wall formed around the center of the bell-shaped fan cover; the inner connecting convex block is connected to the inner side of the inner ring side wall and forms a supporting table surface perpendicular to the axial direction of the inner ring side wall; the buffering limiting strips are connected to the side wall of the inner ring, at least two buffering limiting strips are arranged in the circumferential direction of the side wall of the inner ring at intervals, and the inscribed protruding blocks are located between the adjacent buffering limiting strips; the motor forms a connecting table detachably connected to the supporting table top, and the connecting table further abuts against buffering limiting strips located on the two sides of the connecting table. The fan blades are in transmission connection with the power end of the motor and driven by the motor.

Description

Technical Field

[0001] The present application belongs to the field of cooling fans, and more specifically, to a bell-shaped wind cover type cooling fan structure with a circumferential buffer limit. Background Art

[0002] In the automotive industry, the cooling fan is an important component of the air conditioning radiator or cooling water tank, and its performance directly affects the cooling effect and cooling efficiency. With the continuous development of automotive technology, the performance requirements for cooling fans are also increasing. When a traditional automotive cooling fan is running, the high-speed rotation of the fan blades may cause the motor connected to the fan blades to vibrate and displace, which will not only affect the heat dissipation efficiency of the fan, but also may cause damage to the motor and affect the normal use of the cooling fan. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a bell-shaped wind cover type cooling fan structure with a circumferential buffer limit to solve the technical problem of poor stability in the use of cooling fans in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is to provide a bell-shaped wind cover type cooling fan structure with circumferential buffer limit, including:

[0005] A bell-shaped wind housing having inner circle side walls formed around its own center;

[0006] An inscribed protrusion connected to the inner side of the inner ring side wall and forming a supporting table surface perpendicular to the axial direction of the inner ring side wall;

[0007] Buffer limit strips, connected to the inner ring side wall and provided with at least two circumferentially spaced apart arrangement along the inner ring side wall, the inscribed protrusion being located between adjacent buffer limit strips;

[0008] The motor forms a connecting platform detachably connected to the supporting platform, and the connecting platform is also respectively abutted against the buffer limit strips located on both sides of the connecting platform;

[0009] The fan blades are transmission-connected to the power end of the motor and driven by the motor.

[0010] Optionally, a triangular convex strip with a triangular extended cross section is formed on the surface of the inner ring side wall, and the triangular convex strip extends from the support table surface along a direction parallel to the axial direction of the inner ring side wall to the end surface of the inner ring side wall;

[0011] The buffer limit strip is connected to the triangular convex strip and is connected to the inner ring side wall through the triangular convex strip. The connecting platform is in a trapezoidal shape adapted to the adjacent triangular convex strip.

[0012] Optionally, one end of the buffer limit strip away from the supporting tabletop forms a guide portion inclined relative to the triangular convex strip;

[0013] A certain distance is formed between the guide portion and the end surface of the inner ring side wall.

[0014] Optionally, a through countersunk hole is provided on the inscribed protrusion, and a terminal end of the countersunk hole is opened on the supporting table surface;

[0015] The connecting platform is provided with a threaded hole corresponding to the countersunk hole.

[0016] Optionally, a cavity is provided on the inscribed protrusion and is located next to the countersunk hole.

[0017] Optionally, the bell-shaped wind cover has a support ring and an outer ring side wall which are arranged concentrically with the inner ring side wall and extend outward in sequence, and the inner ring side wall, the support ring and the outer ring side wall are connected by a connecting beam;

[0018] The connecting beams extend in the radial direction of the bell-shaped wind housing and are evenly distributed around the center of the bell-shaped wind housing.

[0019] Optionally, the distance between the support ring and the inner ring side wall is smaller than the distance between the support ring and the outer ring side wall.

[0020] Optionally, a wire groove for wiring is connected between the inner ring side wall and the outer ring side wall;

[0021] The wire groove and the connecting beam extend in the same direction and are correspondingly connected to one of the connecting beams.

[0022] Optionally, the outer ring side wall is provided with an extension portion corresponding to the connecting beam and a reinforcing rib connected to the extension portion;

[0023] The extension portion and the reinforcement rib both extend in a direction parallel to the axial direction of the outer ring side wall.

[0024] Optionally, a connecting ear is provided on the side wall of the outer ring, and a through hole for installing and fixing the bell-shaped wind cover is provided on the connecting ear.

[0025] The beneficial effect of the bell-shaped air hood type cooling fan structure with circumferential buffer limit provided in the present application is that: compared with the prior art, an inscribed protrusion connected to the inner ring side wall is provided in the bell-shaped air hood type cooling fan structure with circumferential buffer limit provided in the present application, and a supporting table surface for accommodating the motor and perpendicular to the axial direction of the inner ring side wall is formed on the inscribed protrusion. Since at least two buffer limit strips arranged at circumferential intervals along the inner ring side wall are provided on both sides of the inscribed protrusion, when the motor is connected to the supporting table surface through its connecting platform, it can also abut against the buffer limit strips on both sides of the inscribed protrusion and be restricted by the buffer limit strips, so that it cannot rotate relative to the inner ring side wall along the circumference of the inner ring side wall, effectively reducing the vibration and rotation of the motor during operation, and significantly improving the working stability and service life of the bell-shaped air hood type cooling fan structure with circumferential buffer limit in the present application, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A schematic diagram of the overall structure of a bell-shaped hood-type cooling fan structure with circumferential buffer limit provided in an embodiment of the present application;

[0028] Figure 2 An exploded structural diagram of a bell-shaped wind hood type cooling fan structure with circumferential buffer limit provided in an embodiment of the present application;

[0029] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0030] Among them, the reference numerals in the figure are: 100, bell-shaped wind cover; 101, inner ring side wall; 102, triangular convex strip; 103, support ring; 104, outer ring side wall; 105, connecting beam; 106, wire groove; 107, extension part; 108, reinforcing rib; 109, connecting ear; 110, through hole; 200, internal protrusion; 201, supporting table; 202, countersunk hole; 203, cavity; 300, buffer limit strip; 301, guide part; 400, motor; 401, connecting table; 402, threaded hole; 500, fan blade. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] Please also read Figures 1 to 3 , a bell-shaped wind cover type cooling fan structure with circumferential buffering limit provided in an embodiment of the present application is now described. The bell-shaped wind cover type cooling fan structure with circumferential buffering limit includes a bell-shaped wind cover 100, an inscribed protrusion 200, a buffering limit strip 300, a motor 400 and a fan blade 500. Among them:

[0036] The bell-shaped wind cover 100 has an inner ring side wall 101 formed around its own center, the inscribed protrusion 200 is connected to the inner side of the inner ring side wall 101 and forms a supporting table 201 perpendicular to the axial direction of the inner ring side wall 101, the buffer limit strips 300 are connected to the inner ring side wall 101 and at least two are arranged at intervals along the circumference of the inner ring side wall 101, the inscribed protrusion 200 is located between adjacent buffer limit strips 300, the motor 400 forms a connecting platform 401 that is detachably connected to the supporting table 201, and the connecting platform 401 is also respectively abutted against the buffer limit strips 300 located on both sides of the connecting platform 401, and the fan blades 500 are transmission-connected to the power end of the motor 400 and driven by the motor 400.

[0037] According to the above structure provided in the present embodiment, an inscribed protrusion 200 connected to the inner ring side wall 101 is provided in a bell-shaped wind hood type cooling fan structure with circumferential buffer limit provided in the present embodiment, and a support table 201 for accommodating the motor 400 and perpendicular to the axial direction of the inner ring side wall 101 is formed on the inscribed protrusion 200. Since at least two buffer limit strips 300 arranged at intervals along the circumference of the inner ring side wall 101 are provided on both sides of the inscribed protrusion 200, when the motor 400 is connected to the support table 201 through its connecting platform 401, it can also abut against the buffer limit strips 300 on both sides of the inscribed protrusion 200 and be restricted by the buffer limit strips 300, so that it cannot rotate relative to the inner ring side wall 101 along the circumference of the inner ring side wall 101, effectively reducing the vibration and rotation of the motor 400 during operation, and significantly improving the working stability and service life of the bell-shaped wind hood type cooling fan structure with circumferential buffer limit in the present embodiment, which is far superior to the prior art.

[0038] In another embodiment of the present application, please refer to Figures 1 to 3 , a triangular convex strip 102 with a triangular cross section is formed on the surface of the inner ring side wall 101, the triangular convex strip 102 extends from the support table 201 along a direction parallel to the axial direction of the inner ring side wall 101 to the end face of the inner ring side wall 101, the buffer limit strip 300 is connected to the triangular convex strip 102 and connected to the inner ring side wall 101 through the triangular convex strip 102, and the connecting platform 401 is in a trapezoidal shape adapted to the adjacent triangular convex strip 102. According to the above structure provided in this embodiment, the triangular convex strip 102 can, on the one hand, make the buffer limit strip 300 more aligned with the rotation direction of the motor 400 relative to the inner ring side wall 101, thereby more effectively limiting the rotation of the motor 400 relative to the inner ring side wall 101; on the other hand, the triangular convex strip 102 and the connecting platform 401 adopt a matching shape so that the triangular convex strip 102 can be used as a guide structure of the connecting platform 401, so that the motor 400 can be more conveniently installed on the support table 201.

[0039] In another embodiment of the present application, please refer to Figures 1 to 3 The end of the buffer limit strip 300 away from the support table 201 forms a guide portion 301 inclined relative to the triangular convex strip 102, and a certain distance is formed between the guide portion 301 and the end surface of the inner ring side wall 101. According to the above structure provided in this embodiment, the guide portion 301 can make it more convenient for the motor 400 to abut against the buffer limit strip 300 and be installed on the support table 201.

[0040] In another embodiment of the present application, please refer to Figures 1 to 3, a through countersunk hole 202 is provided on the internal projection 200, and the end port of the countersunk hole 202 is opened on the support table 201, and a threaded hole 402 corresponding to the countersunk hole 202 is provided on the connecting platform 401. According to the above structure provided in this embodiment, the motor 400 and the internal projection can be quickly connected by a connecting member (such as a bolt) correspondingly installed between the countersunk hole 202 and the threaded hole 402, which is beneficial to improving the production efficiency of the bell-shaped wind cover type cooling fan structure with circumferential buffer limit in this embodiment on the one hand, and on the other hand, it can improve the installation stability between the motor 400 and the internal projection, thereby further improving the working stability and service life of the bell-shaped wind cover type cooling fan structure with circumferential buffer limit in this embodiment.

[0041] In another embodiment of the present application, please refer to Figures 1 to 3 , a cavity 203 is provided on the inscribed protrusion 200 and is located next to the countersunk hole 202. According to the above structure provided in this embodiment, the cavity 203 provided next to the countersunk hole 202 can significantly reduce the production material of the inscribed boss, thereby effectively reducing the product weight of the bell-shaped wind cover type cooling fan structure with circumferential buffer limit provided in this embodiment and achieving the technical effect of product lightweighting.

[0042] In another embodiment of the present application, please refer to Figures 1 to 3 The bell-shaped air cover 100 has a support ring 103 and an outer ring side wall 104 which are arranged concentrically with the inner ring side wall 101 and extend outward in sequence. The inner ring side wall 101, the support ring 103 and the outer ring side wall 104 are connected by a connecting beam 105. The connecting beam 105 extends along the radial direction of the bell-shaped air cover 100 and is evenly distributed around the center of the bell-shaped air cover 100. According to the above structure provided in this embodiment, the bell-shaped air cover 100 provided in this embodiment has better structural strength through the support ring 103, the outer ring side wall 104 and the connecting beam 105 connecting the above three which are concentrically arranged outside the inner ring side wall 101, which is conducive to further improving the working stability and service life of the bell-shaped air cover type cooling fan structure with circumferential buffer limit in this embodiment.

[0043] In another embodiment of the present application, please refer to Figures 1 to 3 , the distance between the support ring 103 and the inner ring side wall 101 is smaller than the distance between the support ring 103 and the outer ring side wall 104. According to the above structure provided in this embodiment, the support ring 103 can better improve the load bearing capacity of the inner ring side wall 101, thereby further improving the installation stability of the motor 400.

[0044] In another embodiment of the present application, please refer to Figures 1 to 3A wire groove 106 for wiring is connected between the inner ring side wall 101 and the outer ring side wall 104. The wire groove 106 and the connecting beam 105 extend in the same direction and are correspondingly connected to one of the connecting beams 105. According to the above structure provided in this embodiment, the wire groove 106 arranged between the inner ring side wall 101 and the outer ring side wall 104 can facilitate the cables connected to the motor 400 to pass through the wire groove 106, which is not only conducive to further improving the production efficiency of the bell-shaped wind cover type cooling fan structure with circumferential buffer limit in this embodiment, but also can well ensure the structural strength of the bell-shaped wind cover 100.

[0045] In another embodiment of the present application, please refer to Figures 1 to 3 The outer ring side wall 104 is provided with an extension portion 107 corresponding to the connecting beam 105 and a reinforcing rib 108 connected to the extension portion 107, and both the extension portion 107 and the reinforcing rib 108 extend in a direction parallel to the axial direction of the outer ring side wall 104. According to the above structure provided in this embodiment, the extension portion 107 provided on the outer ring side wall 104 and the reinforcing rib 108 connected to the extension portion 107 are conducive to better ensuring the structural strength of the bell-shaped wind cover 100.

[0046] In another embodiment of the present application, please refer to Figures 1 to 3 , a connecting ear 109 is provided on the outer ring side wall 104, and a through hole 110 is provided on the connecting ear 109 for installing and fixing the bell-shaped air cover 100. According to the above structure provided in this embodiment, the connecting ear 109 provided on the outer ring side wall 104 and the through hole 110 opened on the connecting ear 109 are conducive to the bell-shaped air cover type cooling fan structure with circumferential buffer limit provided in this embodiment to be quickly installed to the target position, and has a faster installation efficiency.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A bell-shaped wind cover type cooling fan structure with circumferential buffer limit, characterized in that: include: A bell-shaped wind cover (100) having an inner circle side wall (101) formed around the center of the bell-shaped wind cover; An inscribed protrusion (200) connected to the inner side of the inner ring side wall (101) and forming a supporting table surface (201) perpendicular to the axial direction of the inner ring side wall (101); buffer limit strips (300) connected to the inner ring side wall (101) and provided at least two of them at intervals in the circumferential direction of the inner ring side wall (101), the inscribed protrusion (200) being located between adjacent buffer limit strips (300); The motor (400) forms a connecting platform (401) detachably connected to the supporting platform (201), and the connecting platform (401) is also respectively abutted against the buffer limit strips (300) located on both sides of the connecting platform (401); The fan blade (500) is transmission-connected to the power end of the motor (400) and driven by the motor (400).

2. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 1 is characterized in that: A triangular convex strip (102) having a triangular cross-section is formed on the surface of the inner ring side wall (101), and the triangular convex strip (102) extends from the support table (201) in a direction parallel to the axial direction of the inner ring side wall (101) to the end face of the inner ring side wall (101); The buffer limit strip (300) is connected to the triangular convex strip (102) and is connected to the inner ring side wall (101) through the triangular convex strip (102), and the connecting platform (401) is in a trapezoidal shape adapted to the adjacent triangular convex strip (102).

3. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 2, characterized in that: One end of the buffer limit strip (300) away from the supporting table surface (201) forms a guide portion (301) inclined relative to the triangular convex strip (102); A certain distance is formed between the guide portion (301) and the end surface of the inner ring side wall (101).

4. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 1, characterized in that: The inscribed protrusion (200) is provided with a through countersunk hole (202), and the end port of the countersunk hole (202) is opened on the supporting table surface (201); The connecting platform (401) is provided with a threaded hole (402) corresponding to the countersunk hole (202).

5. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 4, characterized in that: The inscribed protrusion (200) is provided with a cavity (203) located next to the countersunk hole (202).

6. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 1, characterized in that: The bell-shaped wind cover (100) comprises a support ring (103) and an outer ring side wall (104) which are arranged concentrically with the inner ring side wall (101) and extend outward in sequence, and the inner ring side wall (101), the support ring (103) and the outer ring side wall (104) are connected via a connecting beam (105); The connecting beams (105) extend in the radial direction of the bell-shaped wind shield (100) and are arranged in plurality and evenly distributed around the center of the bell-shaped wind shield (100).

7. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 6, characterized in that: The distance between the support ring (103) and the inner ring side wall (101) is smaller than the distance between the support ring (103) and the outer ring side wall (104).

8. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 6, characterized in that: A wire groove (106) for routing wires is connected between the inner ring side wall (101) and the outer ring side wall (104); The wire groove (106) and the connecting beam (105) extend in the same direction and are correspondingly connected to one of the connecting beams (105).

9. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 6, characterized in that: An extension portion (107) corresponding to the connection beam (105) and a reinforcing rib (108) connected to the extension portion (107) are provided on the outer ring side wall (104); The extension portion (107) and the reinforcement rib (108) both extend in a direction parallel to the axial direction of the outer ring side wall (104).

10. The bell-shaped wind cover type cooling fan structure with circumferential buffer limit according to claim 6, characterized in that: The outer ring side wall (104) is provided with a connecting ear (109), and the connecting ear (109) is provided with a through hole (110) for installing and fixing the bell-shaped wind cover (100).

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