Cooling fan bushing assembly, front end module and vehicle
By setting vibration isolation grooves and rounded corners in the cooling fan bushing assembly, the vibration path is changed and the force is evenly distributed, which solves the problem of reduced vibration isolation effect and damage and failure after bushing aging, and improves the vehicle's NVH performance.
Patent Information
- Application Number
- CN202422994541.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing cooling fan bushings lose their vibration isolation effect after aging, resulting in increased NVH problems in vehicles, reduced strength, and a high risk of damage and failure.
A cooling fan bushing assembly is designed, including an upper bushing and a lower bushing, with a vibration isolation groove and a rounded corner. The vibration isolation groove changes the vibration path to consume energy, and the rounded corner is evenly distributed with force to avoid local damage.
It improves the vibration isolation effect, reduces the risk of bushing damage and failure, and improves the NVH performance of the vehicle.
Smart Images
Figure CN223447322U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle engineering technical field especially relates to a cooling fan bush assembly, front end module and vehicle. BACKGROUND
[0002] The cooling fan needs to connect the cooling system and the vehicle body through the bush to carry out the isolation of vibration, the rubber bush for the traditional cooling fan is the solid structure, and the isolation of vibration effect depends on the material of the bush completely, the bush gradually ages with the increase of the use time, and the isolation of vibration effect of the bush after aging decreases obviously, thereby increasing the vehicle NVH problem, and the strength of the bush after aging also decreases, and the risk of bush failure increases.
[0003] For this, the prior art provides a bush with an isolation groove arranged at the middle part, and the isolation of vibration effect of the bush is increased through the isolation groove, thereby reducing the influence of bush aging. However, the strength of the bush after aging is decreased more greatly compared with the traditional structure due to the isolation groove arranged at the middle part, and for the bush at the lower part of the cooling fan, the cooling fan needs to be carried, and the bush is more likely to be locally damaged, thereby further increasing the risk of bush failure. SUMMARY
[0004] The utility model discloses a cooling fan bush assembly, front end module and vehicle to solve the problem of high failure risk of the existing bush structure.
[0005] The utility model provides a cooling fan bush assembly, including upper bush, lower bush and support, the upper bush includes first big end and first small end, and the first big end is used for setting on the upper installation column of cooling fan assembly, is equipped with the isolation groove on the first big end, the lower bush includes second big end and second small end, and the second big end is used for setting on the lower installation column of cooling fan assembly, and the first fillet part is arranged between the second big end and the second small end, and the support is fixedly connected with the auxiliary frame, and the support is equipped with the cooperation hole, and the edge of cooperation hole is provided with the second fillet part, and the second small end passes through the cooperation hole, and the first fillet part is attached with the second fillet part.
[0006] As the preferred technical scheme of the cooling fan bush assembly, the isolation groove includes the first isolation groove and the second isolation groove, the first isolation groove is arranged on the end face of the first big end, and the second isolation groove is arranged on the outer periphery of the first big end and continuously arranged along the circumference of the first big end.
[0007] As the preferred technical scheme of the cooling fan bush assembly, the first isolation groove is arranged as two, and the two first isolation grooves are arranged in a cross shape on the end face of the first big end.
[0008] As the preferred technical scheme of the cooling fan bush assembly, the cross section shape of the second isolation groove is triangular.
[0009] As the preferred technical solution of the cooling fan bushing assembly, a chamfer part is arranged between the first large end and the first small end, and the chamfer part is continuously arranged along the circumference of the first small end.
[0010] As the preferred technical solution of the cooling fan bushing assembly, a third vibration isolation groove is arranged on the end face of the second large end.
[0011] As the preferred technical solution of the cooling fan bushing assembly, two third vibration isolation grooves are arranged in a cross shape on the end face of the second large end.
[0012] As the preferred technical solution of the cooling fan bushing assembly, the upper bushing and the lower bushing are both rubber parts.
[0013] The utility model provides a front end module, including cooling fan assembly, still including the cooling fan bushing assembly of any scheme above, the upper bushing is set on the upper installation column of cooling fan assembly, and the lower bushing is set on the lower installation column of cooling fan assembly.
[0014] The utility model provides a vehicle, including the front end module of scheme above.
[0015] The utility model has the advantages of:
[0016] The utility model provides a cooling fan bushing assembly, through setting vibration isolation groove in the upper bushing and increasing the vibration isolation effect, setting first fillet part on the second large end and the second small end of the lower bushing and corresponding setting support, setting second fillet part and first fillet part on the support and adhering, make the stress distribution of the lower bushing after installation more uniform, avoid the partial stress concentration, and then avoid the partial damage caused by stress concentration.
[0017] The utility model provides a front end module, through setting the cooling fan bushing assembly in the utility model, increase the vibration isolation effect and reduce the risk of bushing assembly damage failure.
[0018] The utility model provides a vehicle, sets the front end module in the utility model, so that the NVH performance of the vehicle is improved. ACCURACY OF DRAWINGS
[0019] Figure 1 It is the structure schematic drawing of front end module in the utility model embodiment;
[0020] Figure 2 It is the structure schematic drawing of upper bushing in the first visual angle in the utility model embodiment;
[0021] Figure 3 It is the structure schematic drawing of upper bushing in the second visual angle in the utility model embodiment;
[0022] Figure 4 is a front view of the upper bushing in the embodiment of the utility model;
[0023] Figure 5 is a structural schematic view of the lower bushing in the first perspective in the embodiment of the utility model;
[0024] Figure 6 is a structural schematic view of the lower bushing in the second perspective in the embodiment of the utility model;
[0025] Figure 7 is a structural schematic view of the bracket in the embodiment of the utility model;
[0026] Figure 8 is a schematic view of the lower bushing and the bracket in cooperation in the embodiment of the utility model.
[0027] In the drawing:
[0028] 100, cooling fan assembly;
[0029] 1, upper bushing; 11, first large end; 111, first vibration isolation groove; 112, second vibration isolation groove; 12, first small end; 13, chamfer part; 14, first mounting hole;
[0030] 2, lower bushing; 21, second large end; 211, third vibration isolation groove; 22, second small end; 23, first round corner part; 24, second mounting hole;
[0031] 3, bracket; 31, cooperation hole; 311, second round corner part. DETAILED DESCRIPTION
[0032] The technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0033] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and it cannot be understood as indicating or implying relative importance. Among them, the term "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, which includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, which includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0034] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the term "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, and can be detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0035] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.
[0036] As Figures 1-8 As shown in the utility model provides a cooling fan bushing assembly, including upper bushing 1, lower bushing 2 and support 3, upper bushing 1 and lower bushing 2 are all rubber parts, upper bushing 1 is sleeved on the upper mounting column of cooling fan assembly 100, and is connected with water tank beam, lower bushing 2 is sleeved on the lower mounting column of cooling fan assembly 100, and is connected with auxiliary frame. Please refer to Figures 2-4The upper bushing 1 includes a first large end 11 and a first small end 12, that is, the upper bushing 1 is a stepped structure and has a ring-shaped stepped surface. The first large end 11 is used to be sleeved on the upper mounting column of the cooling fan assembly 100, and the first small end 12 is used to be connected with the water tank beam. The first large end 11 is provided with a vibration isolation groove, which is used to isolate and reduce the noise of the cooling fan assembly 100. The vibration isolation groove changes the path of vibration transmission and consumes the energy of vibration in the process, so as to achieve the effect of isolating and reducing the noise. Please refer to Figures 5-8 The lower bushing 2 includes a second large end 21 and a second small end 22, that is, the lower bushing 2 is a stepped structure and has a ring-shaped stepped surface. The second large end 21 is used to be sleeved on the lower mounting column of the cooling fan assembly 100, and the second small end 22 is used to be connected with the auxiliary frame. The first fillet 23 is arranged between the second large end 21 and the second small end 22. The bracket 3 is fixedly connected with the auxiliary frame, and the matching hole 31 is arranged on the bracket 3. The edge of the matching hole 31 is provided with a second fillet 311, the second small end 22 passes through the matching hole 31, and the first fillet 23 is matched with the second fillet 311. Please refer to Figure 8 By arranging the second fillet 311 matched with the first fillet 23 on the bracket 3, after the lower bushing 2 is installed, the first fillet 23 of the lower bushing 2 is matched with the second fillet 311 of the bracket 3, and the stepped surface formed by the second large end 21 and the second small end 22 of the lower bushing 2 is also matched with the bracket 3. Therefore, the stress distribution of the lower bushing 2 after installation is more uniform, and local stress concentration is avoided, thereby avoiding local damage caused by stress concentration. In addition, since the stress distribution of the lower bushing 2 is optimized by the arrangement of the first fillet 23, the radial dimension of the lower bushing 2 can be reduced without affecting the use performance, thereby reducing the space occupation.
[0037] Further, as shown in Figures 2-4 The vibration isolation groove includes a first vibration isolation groove 111 and a second vibration isolation groove 112. The first vibration isolation groove 111 is arranged on the end surface of the first large end 11 and is arranged penetratingly along the radial direction of the first large end 11. The second vibration isolation groove 112 is arranged on the outer periphery of the first large end 11 and is continuously arranged along the circumferential direction of the first large end 11, that is, the second vibration isolation groove 112 is a ring-shaped groove arranged on the outer peripheral surface of the first large end 11. When the cooling fan assembly 100 vibrates, the upper bushing 1 is extruded, and the upper bushing 1 deforms correspondingly. The first vibration isolation groove 111 provides a deformation space for the upper bushing 1 in the radial direction, and the second vibration isolation groove 112 provides a deformation space for the upper bushing 1 in the axial direction, thereby reducing the vibration amplitude of the upper bushing 1, and the vibration isolation effect of the upper bushing 1 is enhanced.
[0038] Specifically, please refer to Figure 3As shown, the first vibration isolation groove 111 is provided in two, and the two first vibration isolation grooves 111 are arranged in a cross shape on the end face of the first large end 11 to provide more deformation space in the radial direction of the upper bushing 1, further reducing the vibration amplitude of the upper bushing 1. At the same time, the two first vibration isolation grooves 111 are arranged in a cross shape, and the intersection position of the two first vibration isolation grooves 111 is located at the center position of the first large end 11, that is, to ensure that the first mounting hole 14 of the upper bushing 1 can be in communication with the two first vibration isolation grooves 111 at the same time, when the upper bushing 1 is sleeved on the upper mounting column of the cooling fan assembly 100 through the first mounting hole 14, the mounting point of the upper bushing 1 and the cooling fan assembly 100 can be aligned with the mounting point of the two first vibration isolation grooves 111, thereby ensuring the smooth movement state of the upper bushing 1.
[0039] Specifically, please refer to Figure 4 As shown, the cross-sectional shape of the second vibration isolation groove 112 is triangular, specifically, the cross-sectional shape of the second vibration isolation groove 112 is isosceles triangular. When the upper bushing 1 occurs elastic deformation in the axial direction, the second vibration isolation groove 112 provides deformation space in the axial direction, and the isosceles triangular cross-section of the second vibration isolation groove 112 has a certain degree of guiding effect on deformation, thereby making the direction of deformation more controllable through guidance.
[0040] Optionally, as Figures 2-4 As shown, the first large end 11 and the first small end 12 are provided with a chamfering part 13, the chamfering part 13 is continuously provided along the circumference of the first small end 12, and a corresponding chamfering structure is provided at the connection position of the water tank beam, so that the two are fitted. Thus, the stress of the upper bushing 1 is optimized, and stress concentration is avoided. Under the premise of not affecting the use performance, the radial dimension of the upper bushing 1 can be reduced, thereby reducing the space occupation. In this embodiment, the chamfering part 13 can be a flat chamfer or a round chamfer, and the round chamfer is preferred to further reduce stress concentration.
[0041] Further, as Figures 5-6 As shown, a third vibration isolation groove 211 is arranged on the end face of the second large end 21 of the lower bushing 2, and the third vibration isolation groove 211 is arranged through the radial direction of the second large end 21. After the cooling fan assembly 100 is installed and vibrates, the lower bushing 2 will be extruded, and the lower bushing 2 will deform correspondingly, and the third vibration isolation groove 211 provides deformation space in the radial direction, thereby reducing the vibration amplitude of the lower bushing 2 and to a certain extent, strengthening the vibration isolation effect of the lower bushing 2.
[0042] Specifically, please refer to Figure 6As shown, the third vibration isolation groove 211 is provided in two, and the two third vibration isolation grooves 211 are cross arranged on the end face of the second large end 21 to provide more deformation space in the radial direction of the lower bushing 2, further reducing the vibration amplitude of the lower bushing 2. At the same time, the two third vibration isolation grooves 211 are cross arranged, and the intersection position of the two third vibration isolation grooves 211 is located at the center position of the second large end 21, that is, to ensure that the second mounting hole 24 of the lower bushing 2 can be in communication with the two third vibration isolation grooves 211 at the same time, when the lower bushing 2 is sleeved on the lower mounting column of the cooling fan assembly 100 through the second mounting hole 24, the mounting point of the lower bushing 2 and the mounting point of the two third vibration isolation grooves 211 can be aligned, thereby ensuring the stability of the installation and movement state of the lower bushing 2.
[0043] It should be pointed out that the cooling fan bushing assembly in the embodiment is divided into an upper bushing 1 and a lower bushing 2, wherein the upper bushing 1 does not need to bear the weight of the cooling fan assembly 100 in the use process, and is mainly used for vibration isolation of the cooling fan assembly 100, so the first vibration isolation groove 111 and the second vibration isolation groove 112 are arranged to enhance the vibration isolation effect. The lower bushing 2 needs to bear the weight of the cooling fan assembly 100 in the use process, and is mainly used for bearing the cooling fan assembly 100, and also considers vibration isolation, so only the third vibration isolation groove 211 is arranged. By differentiating the structure of the upper bushing 1 and the lower bushing 2, on the one hand, the service life of the cooling fan bushing assembly is ensured, and on the other hand, the vibration isolation effect is also significantly improved.
[0044] The utility model provides a kind of front end module, including cooling fan assembly 100 and the cooling fan bushing assembly in the embodiment of the utility model. Upper bushing 1 is sleeved on the upper mounting column of cooling fan assembly 100, and lower bushing 2 is sleeved on the lower mounting column of cooling fan assembly 100. By setting cooling fan bushing assembly, increase the vibration isolation effect while also reduce the risk of bushing assembly failure.
[0045] The utility model provides a kind of vehicle, including the front end module in the embodiment of the utility model, by setting front end module, so that the NVH performance of vehicle is improved.
[0046] Obviously, the above embodiments of the utility model are only for clear illustration of the utility model, and not the limitation of the implementation mode of the utility model. For ordinary skilled person in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. Cooling fan bushing assembly, characterized in that, include: An upper bushing (1), the upper bushing (1) comprising a first large end (11) and a first small end (12), the first large end (11) being used for being sleeved on an upper mounting column of a cooling fan assembly (100), and a vibration isolation groove being provided on the first large end (11); A lower bushing (2), the lower bushing (2) comprising a second large end (21) and a second small end (22), the second large end (21) being used for being sleeved on a lower mounting column of the cooling fan assembly (100), and a first fillet portion (23) being provided between the second large end (21) and the second small end (22); A bracket (3) is fixedly connected to the sub-frame, the bracket (3) is provided with a matching hole (31), the edge of the matching hole (31) is provided with a second rounded corner portion (311), the second small end (22) passes through the matching hole (31), and the first rounded corner portion (23) is in contact with the second rounded corner portion (311).
2. The cooling fan bushing assembly according to claim 1, wherein: The vibration isolation groove comprises a first vibration isolation groove (111) and a second vibration isolation groove (112), wherein the first vibration isolation groove (111) is arranged on the end surface of the first large end (11), and the second vibration isolation groove (112) is arranged on the outer periphery of the first large end (11) and is continuously arranged along the circumference of the first large end (11).
3. The cooling fan bushing assembly according to claim 2, wherein: Two first vibration isolation grooves (111) are provided, and the two first vibration isolation grooves (111) are arranged in a cross-like manner on the end surface of the first large end (11).
4. The cooling fan bushing assembly according to claim 2, wherein: The cross-section of the second vibration isolation groove (112) is triangular.
5. The cooling fan bushing assembly according to claim 1, wherein: A chamfered portion (13) is provided between the first large end (11) and the first small end (12), and the chamfered portion (13) is continuously provided along the circumference of the first small end (12).
6. The cooling fan bushing assembly according to claim 1, wherein: A third vibration isolation groove (211) is provided on the end surface of the second large end (21).
7. The cooling fan bushing assembly according to claim 6, wherein: The third vibration isolation grooves (211) are provided in two configurations, and the two third vibration isolation grooves (211) are arranged in a cross-like manner on the end surface of the second large end (21).
8. The cooling fan bushing assembly according to any one of claims 1 to 7, characterized in that: The upper bushing (1) and the lower bushing (2) are both made of rubber.
9. A front-end module comprising a cooling fan assembly (100), characterized in that: It also includes the cooling fan bushing assembly according to any one of claims 1 to 8, wherein the upper bushing (1) is sleeved on the upper mounting column of the cooling fan assembly (100), and the lower bushing (2) is sleeved on the lower mounting column of the cooling fan assembly (100).
10. A vehicle, characterized in that Comprising the front-end module according to claim 9.