Fan mounting structure of power electronic equipment and power electronic equipment
By adopting an installation structure that combines fans, vibration damping components, and fasteners in power electronic devices, the problem of the natural frequency vibration of the fans affecting equipment operation is solved, achieving a simple and economical vibration reduction effect and avoiding the need to use large externally purchased vibration dampers.
Patent Information
- Application Number
- CN202520564279.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-10
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The natural frequency vibration of the wind turbine affects the normal operation of the equipment and disrupts the balance of sensitive scenarios. Existing technologies require the use of bulky and structurally rigid external vibration dampers to solve this problem.
The installation structure includes a fan, vibration damping components, and fasteners. The vibration damping components are made of styrene-butadiene rubber sheets, with a width greater than the fan flange face. The mounting holes are on the outside, and they are fixed to the ventilation openings of the chassis by fasteners to achieve the vibration damping effect.
It achieves effective vibration reduction while being simple in structure, low in cost, easy to install and maintain, and highly adaptable, avoiding the use of bulky and fixed external vibration dampers.
Smart Images

Figure CN224111514U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power electronic equipment especially fan mounting structure of power electronic equipment. BACKGROUND
[0002] With the development of power electronic technology, the reliability requirement of various power electronic equipments is higher and higher, and the fan as a commonly used heat dissipation device of power electronic equipment is widely used, and the heat dissipation fan in the forced air cooling equipment is usually directly installed on the equipment cabinet shell or the metal or other rigid material structural member connected with the cabinet shell. When the fan works, the inherent frequency vibration will be directly transmitted or transmitted to the system through the metal or other rigid material structural member connected with the cabinet shell, so that the system structure also generates the inherent frequency vibration as the fan. When some occasions or equipment are sensitive to the inherent frequency vibration, the balance of some occasions will be destroyed or the normal operation of the equipment will be affected due to the existence of the inherent frequency vibration, so that the related tasks of these occasions or equipment cannot be normally executed. SUMMARY
[0003] The utility model discloses to solve the problem that the inherent frequency vibration of fan influences the normal operation of electric equipment or the problem that the vibration of fan destroys the balance of sensitive scene in the prior art, and provides a simple, economical and effective fan mounting structure, which can achieve the effect of vibration reduction without using the relatively large and structure style solidified purchased shock absorber. The purpose of the utility model is realized through the following technical scheme:
[0004] A fan mounting structure of power electronic equipment, comprising a cabinet and a fan damping structure assembly, the cabinet is provided with a ventilation opening, the fan damping structure assembly comprises a fan, the utility model discloses to solve the problem that the inherent frequency vibration of fan influences the normal operation of electric equipment or the problem that the vibration of fan destroys the balance of sensitive scene in the prior art, and provides a simple, economical and effective fan mounting structure, which can achieve the effect of vibration reduction without using the relatively large and structure style solidified purchased shock absorber. The purpose of the utility model is realized through the following technical scheme:
[0005] A fan mounting structure of power electronic equipment, comprising a cabinet and a fan damping structure assembly, the cabinet is provided with a ventilation opening, the fan damping structure assembly comprises a fan, the utility model discloses to solve the problem that the inherent frequency vibration of fan influences the normal operation of electric equipment or the problem that the vibration of fan destroys the balance of sensitive scene in the prior art, and provides a simple, economical and effective fan mounting structure, which can achieve the effect of vibration reduction without using the relatively large and structure style solidified purchased shock absorber. The purpose of the utility model is realized through the following technical scheme:
[0006] Further, the width of the vibration-damping structural member is greater than the width of the fan mounting flange face.
[0007] Further, the mounting hole provided on the vibration-damping structural member is provided at an outer side position relative to the fan mounting flange face.
[0008] Further, the vibration-damping structural member is made of a butadiene styrene rubber plate.
[0009] Another object of the present application is to provide a power electronic device comprising the fan mounting structure as described above.
[0010] In the technical scheme of the present application, the fan vibration-damping structure assembly is fixed to the case shell, thereby effectively reducing vibration. Compared with the conventional externally purchased damper, the scheme adopted by the present application has the advantages of simple structure, small size, structure style being matched and designed according to occasions, convenient installation and maintenance, low cost, complete self-controllability, etc. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 Fig. 4 is a schematic view of the fan vibration-damping structure assembly after installation in the embodiment of the present application;
[0012] Figure 2 Fig. 5 is a perspective view of the fan vibration-damping structure assembly after installation in the embodiment of the present application.
[0013] In the drawings: 1, vibration-damping structural member; 2, fastener; 3, fan; 4, mounting hole on the vibration-damping structural member; 5, ventilation opening on the vibration-damping structural member; 6, fixing hole on the vibration-damping structural member. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. In addition, the technical features involved in the present application described below can be combined with each other as long as there is no conflict.
[0015] As shown in Figure 1 , 2 , in the fan mounting structure of the power electronic device in the embodiment of the present application, the fan vibration-damping structure assembly comprises a fan 3, a fastener 2 and a vibration-damping structural member 1 made of a butadiene styrene rubber plate (SBR), the vibration-damping structural member 1 is provided with a fixing hole 6 for fixing the fan, a mounting hole 4 for connecting with the case body of the power electronic device and a ventilation opening 5 corresponding to the fan of the vibration-damping structural member and the fan; the fan 3 is an axial fan or a centrifugal fan.
[0016] In practical application, the damping structure 1 and the fan 3 are fixed together through the fixing hole 6 and the fastener 2 to form a fan damping structure assembly, and the assembly is fixed to the equipment cabinet ventilation opening position through the mounting hole 4 of the damping structure and the fastener.
[0017] Based on the above, the fan mounting structure of the utility model is simple, effective in damping, convenient to operate, strong in universality, and worth promoting.
[0018] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A fan mounting structure of a power electronic device, comprising a cabinet and a fan damping structure assembly, the cabinet being provided with a ventilation opening, characterized in that, The fan damping structure assembly comprises a fan, a damping structure member and a fastener, the damping structure member is provided with a ventilation opening, a fixing hole and a mounting hole, the ventilation opening corresponds to a fan of the fan, the fan is fixed on the damping structure member by the fastener through the fixing hole to form the fan damping structure assembly, and the fan damping structure assembly is installed on a ventilation opening part of the case by the fastener through the mounting hole.
2. The fan mounting structure for power electronic apparatus according to claim 1, characterized by The width of the damping structure member is greater than that of a fan mounting flange face.
3. The fan mounting structure for power electronic apparatus according to claim 2, characterized by The mounting hole provided on the damping structure member is arranged at an outer side part relative to the fan mounting flange face.
4. The fan mounting structure for power electronic apparatus according to claim 1, characterized by The damping structure member is made of a butadiene styrene rubber plate.
5. A power electronic device, characterized by A fan mounting structure comprising the fan mounting structure according to any one of claims 1 to 4.