CN217029431U - Vibration reduction structure of radiator - Google Patents
Vibration reduction structure of radiator Download PDFInfo
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- CN217029431U CN217029431U CN202123300434.8U CN202123300434U CN217029431U CN 217029431 U CN217029431 U CN 217029431U CN 202123300434 U CN202123300434 U CN 202123300434U CN 217029431 U CN217029431 U CN 217029431U
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- positioning structure
- protective sleeve
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Abstract
The utility model provides a vibration reduction structure of a radiator, which comprises a fan, a protective sleeve and a fan bracket, wherein the fan has a positioning function structure; the protective sleeve is provided with a first accommodating space, a first positioning structure and a second positioning structure which are arranged inside, and a third positioning structure and a fourth positioning structure which are arranged outside, the fan is arranged in the first accommodating space, the end part of the second positioning structure at the front end is arranged inside the positioning function structure, and the rear end of the fan is limited and blocked by the first positioning structure; the fan bracket is provided with a fifth positioning structure, a sixth positioning structure and a second containing space arranged in the fifth positioning structure, the protective sleeve is arranged in the second containing space, the third positioning structure is arranged in the fifth positioning structure, and the fourth positioning structure is arranged in the sixth positioning structure.
Description
Technical Field
The utility model relates to the technical field of vehicle lamps, in particular to a vibration reduction structure of a radiator.
Background
The noise is divided into vibration noise, wind noise, abnormal sound, etc. if the physical barycenter of rotor and the inertia center of rotating shaft are not on the same axle when the fan rotor rotates, the unbalance of rotor will be caused. The closest distance between the physical mass center of the rotor and the inertia center of the rotating shaft is called the eccentricity, the unbalance of the rotor causes the eccentricity, when the rotor rotates, the action force is generated by the action of the centrifugal force on the rotating shaft bracket to form vibration, and the vibration is transmitted to each part of the machine to form vibration noise. When the fan works, noise is generated because the blades periodically bear the pulsating force action of uneven airflow at the outlet; on the other hand, due to the uneven distribution of the pressure on the blades and the blades, the disturbance of the blades on the surrounding gas and parts during the rotation of the blades also forms rotation noise; in addition, when the gas flows through the blades, a turbulent adhesion layer, vortex and vortex separation are generated, so that pressure distribution pulsation on the blades is caused, and vortex noise is generated. The noise caused by the three reasons can be comprehensively called as "wind-cut noise", namely wind noise, and the wind-cut noise is also large for a fan with large wind quantity and large wind pressure. The wind noise only sounds a simple wind, and the abnormal sound is different, when the fan runs, besides the wind noise, if other sounds are emitted, the abnormal sound of the fan can be judged. The abnormal sound may be generated by the impact caused by the foreign matter or deformation in the bearing and improper assembly, or the loosening caused by uneven winding of the motor winding, and the noise may be propagated by air, structural vibration, standing wave, and the like, and the sound may be propagated by solid mechanical vibration, such as wood, metal, concrete, and the like. Because the air sound transmission efficiency is low and the solid is difficult to drive to vibrate, the main source of the solid-borne noise is that the vibration source contacts the surface of the solid medium, the loss of the solid sound transmission is smaller than that of the air sound transmission, and the solid sound transmission can be transmitted for a very long distance without great energy loss.
The fan is generally directly installed on the lamp body through the screw to current radiator damping structure, and the fan passes through screw direct fixed connection on car light casing, is the rigid connection between screw and the lamp body, and fixed connection relation between the two can make the vibration transmission of fan give car light casing, and the casing is bulky, can be thought approximately as the megaphone to enlarge the noise of fan, the noise problem is more serious, and the installation procedure is loaded down with trivial details. In part of the prior art, the fan mounted on the lamp housing is mounted on the fan bracket in the lamp through screws, so that noise is prevented from being directly transmitted to the outside of the lamp through the lamp housing, and although the noise is slightly reduced, the mounting steps are more, and parts are required to be added. In addition, 4 rubber cushion blocks are arranged at the installation positions of the fan and the screw columns and then fixed by screws, so that vibration transmission is reduced, although noise is reduced to some extent, the defect of multiple installation steps still exists, and the number of parts is increased.
Patent document CN112460556A discloses a fan mounting structure for vehicle lamp components, in which a fan is fixed on a bracket by a second screw, the bracket is fixed on a rear cover by the first screw, and a seal ring is mounted in a groove of the rear cover; the rear cover is provided with a screw post and a groove, the bracket is provided with a screw hole, a screw post, a positioning post, a supporting rib, a fool-proof rib, an elastic structure and a hollow structure, and the fan is provided with a screw hole, a fool-proof rib and a fool-proof groove; the screw post that the back was covered cooperatees with the screw hole on the support to fix through screw one, wherein support bar and reference column above the support cooperate respectively with two screw holes on the fan oblique diagonal direction, two screw posts on the support cooperate with two screw holes on another oblique diagonal direction of fan respectively, and fix through screw two, but this design is unfavorable for alleviating vibration, noise reduction through the mode of screw rigid connection.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a vibration reduction structure of a radiator.
According to the utility model, the utility model provides a vibration reduction structure of a radiator, which comprises:
the fan is provided with a positioning function structure;
the protective sleeve is provided with a first accommodating space, a first positioning structure and a second positioning structure which are arranged inside, and a third positioning structure and a fourth positioning structure which are arranged outside, the fan is installed in the first accommodating space, the end part of the second positioning structure at the front end is installed inside the positioning function structure, and the rear end of the fan is limited and blocked by the first positioning structure;
the fan bracket is provided with a fifth positioning structure, a sixth positioning structure and a second accommodating space arranged in the fan bracket, the protective sleeve is arranged in the second accommodating space, part or all of the third positioning structure is arranged in the fifth positioning structure, and part or all of the fourth positioning structure is arranged in the sixth positioning structure.
Preferably, the first positioning structure is one or more first positioning holes arranged at the periphery of the fan, and the second positioning structure is a first positioning column matched with the first positioning holes.
Preferably, the protective sheath has an open end through which the first accommodation space communicates with the outside;
the first positioning structure is one or more limiting edges arranged on the inner side edge of the opening end and extending towards the middle of the opening end.
Preferably, the third positioning structure is a boss structure arranged on two sides of the protective sleeve in a symmetrical or asymmetrical manner;
the fifth positioning structure is a through hole structure on the fan bracket;
the end of the boss structure is mountable to the interior of the through-hole structure.
Preferably, the fourth positioning structure is a second positioning column, and the sixth positioning structure is a second positioning hole matched with the second positioning column.
Preferably, the protective sleeve is provided with a plurality of protective sleeve anti-slip ribs along the circumferential direction, so that the protective sleeve is tightly squeezed in the fan bracket in a friction mode.
Preferably, an auxiliary damping rib is arranged on the protective sleeve.
Preferably, the left side and the right side of the fan bracket are respectively provided with a fifth positioning structure, and the front side and the rear side of the fan bracket are respectively provided with a front limiting edge and a rear limiting edge;
the front limiting edge and the rear limiting edge respectively clamp the front side and the rear side of the protective sleeve.
Preferably, the protective sleeve is a flexible structure.
Preferably, the flexible structure is made of any one of silicone, PVC, EPDM and TPE.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the fan is directly arranged on the inner lamp support through the protective sleeve with the flexible structure, the mode of connecting the lamp shell and the fan by using screws in the prior art is replaced, and the hard connection is replaced by the soft connection, so that the propagation of noise to the outside of the lamp is reduced, the number of parts and installation steps are reduced, the vibration and the noise can be relieved, the structure is simple, the number of parts is reduced, and the cost is saved.
2. The utility model plays a role in fixing or skid resistance through structures such as the buckle structure, the skid-proof rib and the like on the surface of the protective sleeve, thereby increasing the stability of the equipment.
3. According to the utility model, the fan protective sleeve is made of TPE and other flexible materials, so that the problems of vibration transmission of fan noise and reduction of car lamp noise are solved.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a schematic view of a fan sub-assembly;
FIG. 4 is a schematic front view of the protective cover;
FIG. 5 is a perspective view of the protective sheath;
FIG. 6 is a perspective view of a side of the fan bracket;
fig. 7 is a schematic perspective view of the other side of the fan bracket.
The figures show that:
sixth positioning structure 11 of fan 1
Positioning function structure 4 protective sleeve antiskid rib 14
The first accommodation space 5 assists the damping rib 15
Front limiting edge 16 of first positioning structure 6
Rear limiting edge 17 of second positioning structure 7
Third positioning structure 8 blocking rib 18
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the utility model.
The utility model provides a vibration reduction structure of a radiator, as shown in figures 1 to 7, the vibration reduction structure comprises a fan 1, a protective sleeve 2 and a fan bracket 3, wherein the fan 1 is provided with a positioning function structure 4, the protective sleeve 2 is provided with a first accommodating space 5, a first positioning structure 6, a second positioning structure 7, a third positioning structure 8 and a fourth positioning structure 9, the first accommodating space 5, the second positioning structure 7, the third positioning structure 8 and the fourth positioning structure 9 are arranged outside, the fan 1 is installed in the first accommodating space 5, the end part of the second positioning structure 7 is installed in the positioning function structure 4, and the rear end of the fan 1 is limited and blocked by the first positioning structure 6.
The fan bracket 3 has a fifth positioning structure 10, a sixth positioning structure 11 and a second accommodating space 12 arranged inside, the protective sleeve 2 is installed in the second accommodating space 12, and the protective sleeve 2 is clamped in the fan bracket 3 because the third positioning structure 8 is partially or completely installed in the fifth positioning structure 10 and the fourth positioning structure 9 is partially or completely installed in the sixth positioning structure 11.
The fan 1 is arranged in the protective sleeve 2 to form the fan sub-assembly 200, the fan sub-assembly 200 is arranged in the fan support 3 to form the fan assembly 100, the structure of the utility model can reduce the external noise of the vehicle lamp, the fan 1 is arranged through the protective sleeve 2, part of the noise of the fan 1 vibration is absorbed, and meanwhile, the screw connection mode adopted in the prior art is replaced, and the lamp cost is reduced.
Specifically, location function structure 4 is for arranging the first locating hole of one or more at fan 1 periphery, preferably has four first locating holes, second location structure 7 is for the first locating post with the first locating hole of matching, protective sheath 2 has the open end, first accommodation space 5 communicates with the outside through the open end, first location structure 6 is for arranging one or more spacing border 13 that extends at the inboard limit portion of open end towards the open end middle part, when fan 1 installs in first accommodation space 5, first locating post inserts in the first locating hole, realize fan 1 along radial direction spacing, simultaneously, fan 1 receives spacing messenger fan 1 along axial direction spacing of spacing border 13, make fan 1 can be by stable the installation in protective sheath 2.
Specifically, third location structure 8 is for arranging the convex structure in the 2 both sides of protective sheath with symmetry or asymmetric mode, fan bracket 3's left side, the right side is provided with fifth location structure 10 respectively, fifth location structure 10 is the through-hole structure on fan bracket 3, the inside that through-hole structure can be installed to convex structure's tip forms the cooperation structure of buckle, protective sheath 2 is in fan bracket 3's inside by stable buckle through the convex structure of both sides, it is two-way spacing to protective sheath 2 axial direction and radial direction to have realized, to making the structure after the buckle is connected more stable.
The front side and the rear side of the fan support 3 are respectively provided with a front limiting edge 16 and a rear limiting edge 17, the front limiting edge 16 and the rear limiting edge 17 are used for clamping the front side and the rear side of the protective sleeve 2 respectively, the fourth positioning structure 9 is a second positioning column, the sixth positioning structure 11 is a second positioning hole matched with the second positioning column, the second positioning column penetrates into the second positioning hole when the protective sleeve 2 is installed in the fan support 3, the matching structures of the limiting edge structure, the positioning hole and the positioning column enable the protective sleeve 2 installed inside the fan support 3 to be further limited in the axial direction, and firmness of the protective sleeve 2 after installation is further improved.
In order to make the inside at fan bracket 3 that can more stable installation of protective sheath 2, protective sheath 2 is provided with a plurality of protective sheath skid beads 14 along circumference, protective sheath skid bead 14 is for protruding the outside rib structure of protective sheath 2 surface, make the clearance between protective sheath 2 and the fan bracket 3 filled, protective sheath 2 friction is crowded tightly in fan bracket 3's inside, and simultaneously, still be provided with in one side of fan bracket 3 and block the messenger of rib 18, realize that blocking of the axial direction of fan subassembly is spacing, must install the back fastness better.
In order to reduce the influence of vibration on each component, the protective sleeve 2 is further provided with an auxiliary vibration reduction rib 15, as shown in fig. 4, a binding surface matched with the auxiliary vibration reduction rib 15 can be designed below the auxiliary vibration reduction rib 15, the fan subassembly 200 is prevented from being separated from the fan bracket 3, and the elastic structure of the auxiliary vibration reduction rib 15 also avoids collision and friction in parts.
Design protective sheath antiskid ribbed 14 can be with fan bracket 3 in inside parcel face do the transition cooperation, increase the frictional force of protective sheath 2 in fan bracket 3 mounting structure, difficult emergence displacement is deviate from.
The protective sleeve 2 replaces the scheme of a screw in the prior art to play a connecting role, so that the production cost of the car lamp is saved. As the middleware of connecting fan 1 and fan support 3, because protective sheath 2 adopts flexible material such as rubber, silica gel, PVC, EPDM or TPE, can absorb partly fan support 3's vibration, will set up the hard joint between fan support 3 and fan 1 originally and convert elastic connection into, reduced the noise.
The fan 1 is installed through the protective sleeve 2, the installation is simple and convenient, parts and installation steps are reduced, and the lamp cost is reduced.
The selection of the material of the protective sleeve 2 is very critical, soft rubber or rubber materials are suitable for the utility model, most preferably TPE (thermoplastic elastomer), which generally refers to thermoplastic elastomer, TPE/TPR (thermoplastic elastomer/thermoplastic rubber), also called artificial rubber or synthetic rubber, wherein TPE has plasticity and rubber elasticity, is more wear-resistant than rubber and silica gel, is softer than plastic, has a wide hardness adjustment range, and can be reasonably selected according to actual application scenes. The substitute material can be selected from silica gel, PVC, EPDM and the like.
When the fan sub-assembly 200 is installed, the fan 1 is plugged into the protective sleeve 2 by the positioning hole on the fan facing the positioning column on the protective sleeve 2, so that the positioning column is inserted into the positioning hole and limited and blocked by the first positioning structure 6 on the protective sleeve 2 to form the fan sub-assembly 200.
The fan subassembly 200 is plugged into the fan support 3, axial and radial positioning is realized by matching the second positioning column 8 and the boss structure on the protective sleeve 2 with the through hole on the fan support 3, and the shaking of the fan subassembly 200 is limited from the front to the rear direction through the front limiting edge 16 and the rear limiting edge 17.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A vibration damping structure for a heat sink, comprising:
a fan (1) having a positioning function structure (4);
the protective sleeve (2) is provided with a first accommodating space (5), a first positioning structure (6) and a second positioning structure (7) which are arranged inside, and a third positioning structure (8) and a fourth positioning structure (9) which are arranged outside, the fan (1) is installed in the first accommodating space (5), the end part of the second positioning structure (7) at the front end is installed inside the positioning function structure (4), and the rear end of the fan (1) is limited and blocked by the first positioning structure (6);
the fan support (3) is provided with a fifth positioning structure (10), a sixth positioning structure (11) and a second containing space (12) arranged inside, the protective sleeve (2) is installed in the second containing space (12), the third positioning structure (8) is partially or completely installed in the fifth positioning structure (10), and the fourth positioning structure (9) is partially or completely installed in the sixth positioning structure (11).
2. A vibration-damping structure for a radiator according to claim 1, wherein said positioning functional structure (4) is one or more first positioning holes arranged at the periphery of the fan (1), and said second positioning structure (7) is a first positioning post matching said first positioning holes.
3. A radiator vibration damping structure according to claim 1, wherein the protective sheath (2) has an open end through which the first accommodation space (5) communicates with the outside;
the first positioning structure (6) is one or more limiting edges (13) which are arranged on the inner side edge part of the opening end and extend towards the middle part of the opening end.
4. The heat sink vibration damping structure according to claim 1, characterized in that the third positioning structure (8) is a boss structure arranged in a symmetrical or asymmetrical manner on both sides of the protective cover (2);
the fifth positioning structure (10) is a through hole structure on the fan bracket (3);
the end of the boss structure is mountable to the interior of the through-hole structure.
5. The heat sink vibration reduction structure according to claim 1, wherein the fourth positioning structure (9) is a second positioning column, and the sixth positioning structure (11) is a second positioning hole matching the second positioning column.
6. Radiator vibration damping structure according to claim 1, characterized in that the protective sleeve (2) is provided with a plurality of protective sleeve beads (14) in the circumferential direction so that the protective sleeve (2) is frictionally squeezed inside the fan bracket (3).
7. A radiator vibration damping structure according to claim 1, characterized in that an auxiliary vibration damping rib (15) is provided on the protective sheath (2).
8. The vibration damping structure of a radiator according to claim 1, wherein a fifth positioning structure (10) is respectively arranged on the left side and the right side of the fan bracket (3), and a front limiting edge (16) and a rear limiting edge (17) are respectively arranged on the front side and the rear side of the fan bracket (3);
the front limiting edge (16) and the rear limiting edge (17) are used for clamping the front side and the rear side of the protective sleeve (2) respectively.
9. A radiator vibration damping structure according to claim 1, characterized in that the protective sheath (2) is a flexible structure.
10. The structure of claim 9, wherein the flexible structure is made of any one of silicone, PVC, EPDM, and TPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123300434.8U CN217029431U (en) | 2021-12-23 | 2021-12-23 | Vibration reduction structure of radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123300434.8U CN217029431U (en) | 2021-12-23 | 2021-12-23 | Vibration reduction structure of radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217029431U true CN217029431U (en) | 2022-07-22 |
Family
ID=82442658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123300434.8U Active CN217029431U (en) | 2021-12-23 | 2021-12-23 | Vibration reduction structure of radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217029431U (en) |
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2021
- 2021-12-23 CN CN202123300434.8U patent/CN217029431U/en active Active
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