CN110829229B - Electric power cabinet with nonlinear frame vibration reduction structure - Google Patents
Electric power cabinet with nonlinear frame vibration reduction structure Download PDFInfo
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- CN110829229B CN110829229B CN201911179930.7A CN201911179930A CN110829229B CN 110829229 B CN110829229 B CN 110829229B CN 201911179930 A CN201911179930 A CN 201911179930A CN 110829229 B CN110829229 B CN 110829229B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/301—Cabinet-type casings; Parts thereof or accessories therefor mainly consisting of a frame onto which plates are mounted
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Abstract
The invention discloses an electric cabinet with a nonlinear frame vibration damping structure, which comprises: the electric power cabinet body is a combination of an inner frame type framework structure and an external sheet metal material, an electric power cabinet base integrally manufactured with the electric power cabinet body is arranged at the lower part of the electric power cabinet body, an electric power element is arranged above the electric power cabinet base in the electric power cabinet body, the inner frame type framework structure of the electric power cabinet is formed by assembling and splicing strip-shaped nonlinear structural components, and a vibration reduction planet carrier used for stabilizing the electric power element in the electric power cabinet is arranged in the electric power cabinet base; the invention designs a nonlinear structural member and develops two application modes, the nonlinear structural member is adopted as a main framework structure of the electric cabinet body, the generalized rigidity of the nonlinear structural member is changed by applying a moment deviation mode, the nonlinear elastic restoring force and the friction damping are organically combined, the vibration isolation and damping capacity of the electric cabinet body is increased, and the transverse bending force, the longitudinal bending force, the torsional force and the bending and twisting coupling force applied to the nonlinear structural member are effectively resisted.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a power cabinet with a nonlinear frame vibration reduction structure.
Background
The electric control cabinet is used as an electric cabinet with an electric control function as the name implies, is used for storing storage equipment of a voltmeter, an ammeter or other electric power equipment and protecting the equipment from short circuit, collision and other accidents, along with the improvement of science and technology and the improvement of technical level, the design of the electric cabinet is more and more scientific, a plurality of electric cabinets are provided with corresponding heat dissipation structures and prevention mechanisms for improving the performance of the electric cabinets, the electric control cabinet is provided with the traditional relay and PLC control, the simpler control is controlled by the relay, the complex control generally adopts the PLC control, the PLC is programmable logic control, the existing control cabinet is applied indoors and outdoors, but the electric cabinet in the prior art has a plurality of defects, the heat dissipation and safety performance of the existing electric cabinet are not high, and the requirement of the modern electric power cabinet can not be met, inside entering into the electric power cabinet with dust impurity through the vent easily like outdoor sand blown by the wind weather, effectual damping device is not all taken to general electric power cabinet, can not effectively reduce vibrations, has caused the influence to the life of electric power cabinet.
In the prior art, a vibration damping type electric power cabinet (CN 201810048316.6) with dustproof and heat dissipation functions comprises a shell and a dust removal box body, wherein telescopic support rods are arranged on two sides of the bottom of the shell, a support table is arranged at the upper end of each telescopic support rod, a placing plate is arranged above each support table, sleeves are symmetrically welded on two side walls of the shell, sliding side rods are arranged in the sleeves in a sliding fit manner, the telescopic rods and the support tables can be matched for vibration damping, the sleeves on two sides and the sliding side rods are matched for assisting in vibration damping, and the influence caused by overlarge amplitude can; the utility model provides an effectual electric power cabinet (CN 201810261182.6) of shock attenuation for power equipment can realize the first step shock attenuation to the electric power cabinet body through the setting of first spring, second spring, first lifter plate, second lifter plate, sleeve, lifter and through-hole, sets up through the cooperation between first round pin axle, second fixed block, second round pin axle, logical groove, movable rod, extension spring, slide bar and the sliding sleeve, can realize the further shock attenuation to the electric power cabinet body.
However, the vibration damping concept in the prior art is to damp vibration by adding a core common elastic element through a series of auxiliary mechanisms, and relates to two problems, one is to add a spring to isolate vibration no matter how the auxiliary mechanisms are varied, the power cabinet is of a sheet metal structure, the elastic force of the spring is concentrated, on the other hand, the common springs added in the prior art have the characteristic of positive rigidity, and the positive rigidity causes great reduction in vibration reduction effect and quality, the effect difference between the positive stiffness and the negative stiffness vibration isolation stability is more obvious under the influence of wind vibration excited by wind in the open air because the accidental vibration is not obvious.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide an electric power cabinet with a nonlinear frame vibration damping structure, a nonlinear structural member is designed and two application modes are developed, the nonlinear structural member is used as a main framework structure of the electric power cabinet body, the generalized rigidity of the nonlinear structural member is changed by applying a moment deviation mode, the nonlinear elastic restoring force and the friction damping are organically combined, the vibration isolation and vibration damping capacity of the electric power cabinet body is improved, and the transverse bending force, the longitudinal bending force, the torsional force and the bending and twisting coupling force applied to the nonlinear structural member are effectively resisted, so that the problems in the background art are solved.
To achieve these objects and other advantages in accordance with the purpose of the invention, an electric cabinet with a non-linear frame damping structure is provided, the technical solution is as follows:
the electric cabinet comprises an electric cabinet body, wherein the electric cabinet body is a combination of an inner frame type framework structure and an external sheet metal material, an electric cabinet base integrally manufactured with the electric cabinet body is arranged at the lower part of the electric cabinet body, an electric element is arranged above the electric cabinet base in the electric cabinet body, L-shaped fixed plates are symmetrically riveted on two sides of the electric cabinet base, the inner frame type framework structure of the electric cabinet is formed by assembling and splicing strip-shaped nonlinear structural parts, a vibration reduction planet carrier used for stabilizing the electric element in the electric cabinet is arranged in the electric cabinet base, and a layer of rubber pad is clamped at the bottom of the electric cabinet base to form a sandwich structure;
the strip-shaped nonlinear structural part is a hollow square steel-shaped sheet metal part structure, weight reduction grooves are uniformly formed in the periphery of the square steel-shaped sheet metal part, the weight reduction grooves of the square steel-shaped sheet metal part in the same circumferential annular ring are uniformly distributed and are positioned in the center of the profile of one side of the square steel-shaped sheet metal part, three sides of a stamping part of the weight reduction grooves of the square steel-shaped sheet metal part are torn off, and one side of the stamping part is fixedly adhered to form elastic sheet lobes which are respectively symmetrical relative to two diagonal lines of the square steel-shaped sheet metal part, the elastic sheet lobes are stamped and separated from the square steel-shaped sheet metal part and are rolled and formed to a preset geometric structure by adopting an internal mold or a gasket or a chopping board, the elastic sheet lobes are respectively contacted with two adjacent elastic sheet lobes in two directions through elastic extrusion force, the elastic sheet lobes respectively comprise two curvature bending parts and are contacted with each other in the curvature bending, the damping layer is arranged on the outer side of the curvature bending part of the leaf of the elastic sheet;
the damping principle of square steel sheet metal component and shell fragment lobe design does: when the outdoor electric cabinet body is influenced by wind to form wind vibration, under the action of uncertain direction and overall structure mode, for the stress of a square steel-shaped sheet metal part, transverse bending force, longitudinal bending force, torsional force and bending-torsion coupling force can be formed, corresponding deformation can occur on the square steel-shaped sheet metal part, when the square steel-shaped sheet metal part deforms, the contact area between leaf blades of the elastic sheets can deviate, the length of moment changes, the narrowness rigidity of the leaf blades of the elastic sheets keeps unchanged due to small deformation degree, under the condition that the square steel-shaped sheet metal part is stressed to a certain degree, the generalized rigidity changes, the generalized rigidity is reduced along with the increase of the length of the moment, a nonlinear elastic structure is formed, the vibration damping effect is greatly increased, the damping layer contacted between the leaf blades of the elastic sheets can consume wind vibration energy due to the position deviation, the amplitude is rapidly reduced, the effect of vibration reduction is achieved;
the vibration reduction planet carrier comprises five spring-dampers and an X-shaped framework elastic sheet, the four spring-dampers are uniformly distributed at four corners of the electric cabinet base and are respectively and fixedly connected with four top ends of the X-shaped framework elastic sheet, and one spring-damper is arranged at the center of the electric cabinet base and is fixedly connected with the center of the X-shaped framework elastic sheet.
Preferably, the ventilation groove has been seted up to the side lower part of the electric power cabinet body, the ventilation groove obtains for the outside flaring of electric power cabinet body surface sheet metal component stamping deformation, the opening direction of ventilation groove is downwards, the department of meeting with square frame in the ventilation groove is equipped with the ascending wind channel of slope, the wind channel opening is equipped with the backward flow lid, the fan is installed to the internal corresponding position of ventilation groove of electric power cabinet, pass through hinge-connecting rod connection between backward flow lid and the wind channel lower part.
Preferably, the spring-damper distributed at four corners of the vibration reduction planet carrier adopts a hydraulic viscous damper for absorbing longitudinal vibration energy, the spring-damper distributed at the center of the vibration reduction planet carrier adopts a shear damper for absorbing transverse torsion energy, and the thickness of the X-shaped framework elastic sheet is not more than 3mm for providing elastic restoring force.
Preferably, an electric cabinet door is mounted on one side of the electric cabinet body through a hinge, a handle is arranged in the middle of the electric cabinet door, a display instrument panel is arranged on the upper portion of the electric cabinet door, a control switch is arranged on the lower portion of the electric cabinet door, the display instrument panel and the control switch are respectively connected with electric elements in the electric cabinet body through circuits, and two lifting lugs are arranged at the top of the electric cabinet body.
Preferably, the damping layer is arranged in a manner that the outer surface of the curvature bending part of the leaf of the spring piece is frosted.
Preferably, the damping layer is arranged in a manner that a rubber layer covers the outer surface of the curvature bending part of the leaf of the spring piece.
The invention at least comprises the following beneficial effects:
1. the invention newly designs a nonlinear structural member and develops two application modes, the nonlinear structural member is adopted as a main framework structure of the electric cabinet body, the generalized rigidity of the nonlinear structural member is changed by applying a moment deviation mode, the nonlinear elastic restoring force and the friction damping are organically combined, the vibration isolation and damping capacity of the electric cabinet body is increased, and the transverse bending force, the longitudinal bending force, the torsional force and the bending and twisting coupling force applied to the nonlinear structural member are effectively resisted;
2. the design process of the nonlinear structural member is ingenious, the design process is simple and convenient, a common stamping weight reduction groove in a conventional technical means is improved, a part removed by stamping is changed into a contact-connected leaf blade of the elastic sheet, when the nonlinear structural member deforms, a contact area between the leaf blades of the elastic sheet can deviate, the torque length is changed, the narrowly defined rigidity of the leaf blade of the elastic sheet is kept unchanged due to small deformation degree, under the condition that the stress of the nonlinear structural member is certain, the generalized rigidity changes, the generalized rigidity is reduced along with the increase of the torque length, a nonlinear elastic structure is formed, the vibration reduction and isolation effect is greatly increased, and a damping layer in contact between the leaf blades of the elastic sheet can consume wind vibration energy due to the existence of position deviation, so that the vibration amplitude is quickly reduced, and the vibration reduction effect is achieved;
3. the combination of the vibration reduction planet carrier is added, and the vibration reduction planet carrier is used for keeping a relatively stable position and smooth transition between the power elements in the power cabinet base and the power cabinet body.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a front cut-away cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the vent slot;
FIG. 4 is a schematic structural diagram of a square steel-shaped sheet metal part;
FIG. 5 is a front view of a square steel-shaped sheet metal part;
FIG. 6 is a schematic diagram of vibration damping for a non-linear structural member;
fig. 7 is a damping schematic diagram of a damping planet carrier.
In the figure: 1. a power cabinet body; 2. a power cabinet base; 3. a power element; 4. a fixing plate; 5. a non-linear structural member; 6. a vibration reduction planet carrier; 7. a square steel-shaped sheet metal part; 8. a weight reduction groove; 9. leaf spring leaves; 10. a curvature bend; 11. a damping layer; 12. a spring-damper; 13. a ventilation slot; 14. a backflow cover; 15. a fan; 16. a power cabinet door; 17. and (7) lifting lugs.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
According to the drawings of fig. 1-7, the invention provides an electric power cabinet with a nonlinear frame damping structure, which adopts the following technical scheme:
the invention discloses a power cabinet body 1 which is a combination of an inner frame type framework structure and an external sheet metal material, wherein two types of power cabinets exist in the prior art, one type of power cabinets is formed by splicing and combining direct sheet metal parts, the other type of power cabinets is formed by building a frame firstly and then covering sheet metal parts on the outer surface to form the power cabinet body 1, the pre-built frame is widely applied to large-scale power cabinets, the invention adopts the mode, a power cabinet base 2 which is integrally manufactured with the power cabinet body 1 is arranged at the lower part of the power cabinet body 1, a power element 3 is arranged above the power cabinet base 2 in the power cabinet body 1, L-shaped fixed plates 4 are symmetrically riveted at two sides of the power cabinet base 2, the L-shaped fixed plates 4 are fixedly installed with the outside through bolts, the inner frame type framework structure of the power cabinet is formed by assembling and splicing strip-shaped nonlinear structural parts 5, a planet carrier vibration reduction 6 for, the bottom of the power cabinet base 2 is clamped with a layer of rubber pad to form a sandwich structure, the rubber has good vibration reduction effect but insufficient stability, and the scheme adopts the characteristics as an auxiliary effect;
the strip-shaped nonlinear structural part 5 is a hollow square steel-shaped sheet metal part 7 structure, weight-reducing grooves 8 are uniformly arranged on the periphery of the square steel-shaped sheet metal part 7, when a frame is generally built by adopting common square steel, the common square steel directly punches and removes the parts in the weight-reducing groove 8 areas, the square steel-shaped sheet metal part 7 is uniformly distributed at the weight-reducing grooves 8 in the same circumferential annular ring and is positioned at the center of the profile of one side of the square steel-shaped sheet metal part 7, three sides of the stamping part of the weight-reducing grooves 8 of the square steel-shaped sheet metal part 7 are torn off, and one side is fixedly adhered to form elastic sheet lobes 9, the elastic sheet lobes 9 are respectively symmetrical about two diagonal lines of the square steel-shaped sheet metal part 7, the elastic sheet lobes 9 are formed by punching and separating from the square steel-shaped sheet metal part 7, an internal mold or a gasket and a chopping board are required to be rolled and formed to a preset geometric structure, the elastic sheet lobes 9 are respectively contacted, the leaf spring 9 comprises two curvature bends 10 respectively, the curvature bends 10 are contacted with each other, and the damping layer 11 is arranged on the outer side of the curvature bend 10 of the leaf spring 9;
the damping principle that square steel sheet metal component 7 and shell fragment lobe 9 design does: when the outdoor electric cabinet body 1 is influenced by wind to form wind vibration, under the action of uncertain direction and overall structure mode, transverse bending force, longitudinal bending force, torsional force and bending-torsion coupling force can be formed for the stress of the square steel-shaped sheet metal part 7, corresponding deformation can occur on the square steel-shaped sheet metal part 7, when the square steel-shaped sheet metal part 7 deforms, the contact area between the leaf blades 9 of the elastic sheet can deviate, the moment length is changed, the narrow rigidity of the leaf blades 9 of the elastic sheet keeps unchanged due to small deformation degree, the generalized rigidity is changed under the condition that the stress of the square steel-shaped sheet metal part 7 is certain, the generalized rigidity is reduced along with the increase of the moment length, a nonlinear elastic structure is formed, the vibration reduction and isolation effect is greatly increased, and the wind vibration energy can be lost due to the existence of position deviation of the damping layer 11 in contact between the leaf blades 9 of the elastic sheet, the amplitude is quickly reduced, and the vibration reduction effect is achieved;
the vibration reduction planet carrier 6 comprises five spring-dampers 12 and an X-shaped structure elastic sheet, wherein the four spring-dampers 12 are uniformly distributed at four corners of the electric power cabinet base 2 and are respectively and fixedly connected with four top ends of the X-shaped structure elastic sheet, one spring-damper 12 is arranged at the center of the electric power cabinet base 2 and is fixedly connected with the center of the X-shaped structure elastic sheet, and the vibration reduction planet carrier 6 is used for keeping a relatively stable position and relatively gentle transition between the electric power cabinet base 2 and the electric power elements 3 in the electric power cabinet body 1.
In an optimal scheme, a ventilation groove 13 is formed in the lower portion of the side edge of the electric cabinet body 1, the ventilation groove 13 is formed by outwards flaring a sheet metal part on the surface of the electric cabinet body 1 in a stamping deformation mode, the opening direction of the ventilation groove 13 is downward, an air duct inclined upwards is arranged at the joint of the ventilation groove 13 and a square frame, a backflow cover 14 is arranged at the opening of the air duct, a fan 15 is installed at the position, corresponding to the ventilation groove 13, in the electric cabinet body 1, the backflow cover 14 is connected with the lower portion of the air duct through a hinge-connecting rod, and the backflow cover 14 and the hinge-connecting rod are combined to prevent external wind from entering the electric cabinet body 1, so that dust, sand and the like are prevented from being brought.
In a preferred scheme, the spring-damper 12 with the vibration reduction planet carrier 6 distributed at four corners adopts a hydraulic viscous damper for absorbing longitudinal vibration energy, the spring-damper 12 with the vibration reduction planet carrier 6 distributed at the center adopts a shear damper for absorbing transverse torsion energy, the thickness of the X-shaped framework elastic sheet is not more than 3mm for providing elastic restoring force, the elasticity of the X-shaped framework elastic sheet and the damping cooperation of the spring-damper 12 are fully applied to the combined structure, and the stability of the whole framework is improved.
In an optimal selection scheme, there is electric power cabinet door 16 one side of the electric power cabinet body 1 through hinged mounting, the middle part of electric power cabinet door 16 is equipped with the handle, the upper portion of electric power cabinet door 16 is equipped with the display instrument board, the lower part of electric power cabinet door 16 is equipped with control switch, the display instrument board, control switch respectively with pass through circuit connection between the electric power component 3 in the electric power cabinet body 1, the top of the electric power cabinet body 1 is equipped with two lugs 17, lugs 17 are used for the hoist and mount to remove, be applicable to outdoor easy to assemble.
In a preferred scheme, the strip-shaped nonlinear structural part 5 is an angle steel-shaped sheet metal part structure, two sides of the angle steel-shaped sheet metal part are distributed and provided with weight reducing grooves 8, the weight reducing grooves 8 on two side edges of the angle steel-shaped sheet metal part are correspondingly arranged and are positioned in the center of the profile on one side of the angle steel-shaped sheet metal part, three sides of a stamping part of each weight reducing groove 8 of the angle steel-shaped sheet metal part are torn off, and one side of each weight reducing groove is fixedly adhered to form a leaf 9 of a spring plate, the leaf 9 of the spring plate is symmetrical relative to the diagonal of the angle steel-shaped sheet metal part, the leaf 9 of the spring plate needs to be rolled and formed to a preset geometric structure by adopting a die or a gasket or a chopping board due to being stamped and separated and formed from the angle steel-shaped sheet metal part, the leaf 9 of the spring plate is contacted with the adjacent leaf 9 of, the basic principle of vibration reduction of the angle steel-shaped sheet metal part is the same as that of the square steel-shaped sheet metal part 7.
In a preferable scheme, the damping layer 11 is arranged in a mode that the outer surface of the curvature bending part 10 of the leaf blade 9 is subjected to sanding treatment, and the sanding part can increase friction damping.
In a preferable scheme, the damping layer 11 is arranged in a manner that a rubber layer covers the outer surface of the curvature bending part 10 of the leaf spring 9, and the rubber layer can increase viscous damping.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. An electric power cabinet with a nonlinear frame damping structure is characterized by comprising:
the electric power cabinet comprises an electric power cabinet body (1) which is a combination of an inner frame type framework structure and an external sheet metal material, wherein an electric power cabinet base (2) integrally manufactured with the electric power cabinet body (1) is arranged at the lower part of the electric power cabinet body (1), an electric power element (3) is arranged above the electric power cabinet base (2) in the electric power cabinet body (1), L-shaped fixing plates (4) are symmetrically riveted at two sides of the electric power cabinet base (2), the inner frame type framework structure of the electric power cabinet is formed by assembling and splicing strip-shaped nonlinear structural components (5), a damping planet carrier (6) used for stabilizing the electric power element (3) in the electric power cabinet is arranged in the electric power cabinet base (2), and a rubber pad is clamped at the bottom of the electric power cabinet base (2) to form a sandwich;
the strip-shaped nonlinear structural part (5) is of a hollow square steel-shaped sheet metal part (7) structure, weight reduction grooves (8) are uniformly formed in the periphery of the square steel-shaped sheet metal part (7), the weight reduction grooves (8) of the square steel-shaped sheet metal part (7) in the same circumferential annular ring are uniformly distributed and are all located in the center of the profile of one side of the square steel-shaped sheet metal part (7), three sides of the stamping part of the weight reduction grooves (8) of the square steel-shaped sheet metal part (7) are torn off, and one side of the stamping part is fixedly adhered to form elastic sheet lobes (9), the elastic sheet lobes (9) are respectively symmetrical about two diagonal lines of the square steel-shaped sheet metal part (7), the elastic sheet lobes (9) are formed by stamping and separating from the square steel-shaped sheet metal part (7), an internal mold or a gasket and a cutting board are required to be rolled to be in a preset geometric structure, and the elastic sheet lobes (9) are respectively contacted with two adjacent elastic sheets (9) in two directions through elastic extrusion, the spring leaf (9) comprises two curvature bending parts (10), the curvature bending parts (10) are mutually contacted, and the outer side of the curvature bending part (10) of the spring leaf (9) is provided with a damping layer (11);
the damping principle of square steel sheet metal component (7) and shell fragment lobe (9) design does: when the outdoor electric cabinet body (1) is influenced by wind power to form wind vibration, under the action of uncertain direction and overall structure mode, for the stress of a square steel-shaped sheet metal part (7), transverse bending force, longitudinal bending force, torsional force and bending-torsion coupling force can be formed, corresponding deformation can occur on the square steel-shaped sheet metal part (7), when the square steel-shaped sheet metal part (7) deforms, the contact area between the leaf flaps (9) of the elastic pieces can deviate, the moment length is changed, the narrow-sense rigidity of the leaf flaps (9) of the elastic pieces keeps unchanged due to small deformation degree, under the condition that the square steel-shaped sheet metal part (7) is stressed to a certain degree, the broad-sense rigidity is changed, the broad-sense rigidity is reduced along with the increase of the moment length, a nonlinear elastic structure is formed, the vibration isolation effect is greatly increased, and a damping layer (11) contacted between the leaf flaps (9) of the elastic pieces is caused by position deviation, wind vibration energy can be consumed, the amplitude is rapidly reduced, and the vibration reduction effect is achieved;
the vibration reduction planet carrier (6) comprises five spring-dampers (12) and an X-shaped framework elastic sheet, the four spring-dampers (12) are uniformly distributed at four corners of the electric cabinet base (2) and are respectively and fixedly connected with four top ends of the X-shaped framework elastic sheet, and one spring-damper (12) is arranged at the center of the electric cabinet base (2) and is fixedly connected with the center of the X-shaped framework elastic sheet.
2. The electric cabinet with the nonlinear frame damping structure according to claim 1, wherein: ventilating duct (13) have been seted up to the side lower part of the electric power cabinet body (1), ventilating duct (13) obtain for the outside flaring of electric power cabinet body (1) surface sheet metal component stamping deformation, the opening direction of ventilating duct (13) is downward, meet the department with square frame in ventilating duct (13) and be equipped with the ascending wind channel of slope, the wind channel opening is equipped with backward flow lid (14), fan (15) are installed to corresponding the position in ventilating duct (13) in the electric power cabinet body (1), be connected through hinge-connecting rod between backward flow lid (14) and the wind channel lower part.
3. The electric cabinet with the nonlinear frame damping structure according to claim 1, wherein: the damping planet carrier (6) distributes in the spring-attenuator (12) in four corners and adopts the hydraulic pressure viscous damper to be used for absorbing vertical vibration energy, damping planet carrier (6) distributes in spring-attenuator (12) at center and adopts the shear damper to be used for absorbing horizontal torsion energy, the thickness of X type framework shell fragment is no longer than 3mm for provide the elasticity restoring force.
4. The electric cabinet with the nonlinear frame damping structure according to claim 1, wherein: the electric power cabinet is characterized in that an electric power cabinet door (16) is mounted on one side of the electric power cabinet body (1) through a hinge, a handle is arranged at the middle of the electric power cabinet door (16), a display instrument panel is arranged on the upper portion of the electric power cabinet door (16), a control switch is arranged on the lower portion of the electric power cabinet door (16), the display instrument panel and the control switch are respectively connected with an electric power element (3) in the electric power cabinet body (1) through circuits, and two lifting lugs (17) are arranged at the top of the electric power cabinet body (1).
5. The electric cabinet with the nonlinear frame damping structure according to claim 1, wherein: the damping layer (11) is arranged in a mode that the outer surface of the curvature bending part (10) of the leaf flap (9) of the elastic sheet is subjected to frosting treatment.
6. The electric cabinet with the nonlinear frame damping structure according to claim 1, wherein: the damping layer (11) is arranged in a mode that a rubber layer covers the outer surface of the curvature bending part (10) of the leaf blade (9).
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| CN201911179930.7A CN110829229B (en) | 2019-11-27 | 2019-11-27 | Electric power cabinet with nonlinear frame vibration reduction structure |
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| CN201911179930.7A CN110829229B (en) | 2019-11-27 | 2019-11-27 | Electric power cabinet with nonlinear frame vibration reduction structure |
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| CN110829229B true CN110829229B (en) | 2020-12-18 |
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| EP2480006A2 (en) * | 2011-01-19 | 2012-07-25 | TiinLab Audio Technology Ltd. | Improved structure for amplifier |
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Effective date of registration: 20201126 Address after: No.8 Taizhong Road, Yuewang Taizi Industrial Park, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Applicant after: XiaoCong precision machinery (Suzhou) Co., Ltd Address before: 450000 No.2 Gangwan Road, Guancheng Hui District, Zhengzhou City, Henan Province Applicant before: Yang Xiangmin |
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