CN219938776U - Shock attenuation and size adjustable light on-vehicle rack - Google Patents

Shock attenuation and size adjustable light on-vehicle rack Download PDF

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Publication number
CN219938776U
CN219938776U CN202321305893.1U CN202321305893U CN219938776U CN 219938776 U CN219938776 U CN 219938776U CN 202321305893 U CN202321305893 U CN 202321305893U CN 219938776 U CN219938776 U CN 219938776U
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China
Prior art keywords
cabinet
door
framework
shock
size adjustable
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CN202321305893.1U
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Chinese (zh)
Inventor
王留洋
孙兆军
李仕雄
王海
胡师虎
陈自强
黎东
刘洪芳
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Guizhou Aerospace Tianma Electrical Technology Co Ltd
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Guizhou Aerospace Tianma Electrical Technology Co Ltd
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Abstract

The utility model provides a light vehicle-mounted cabinet with adjustable shock absorption and size, which comprises a cabinet framework and a cabinet skin wrapped outside the cabinet framework, wherein the cabinet framework is arranged on the cabinet skin; a front door, a rear door, a left door plate and a right door plate are respectively arranged on the front, the rear, the left and the right of the cabinet skin to form a cabinet; the bottom and the side face of the cabinet are respectively provided with a plurality of bottom shock absorbers and side shock absorbers, and an organ protection cover is arranged between the bottom shock absorbers and the bottom of the cabinet; the cabinet framework is provided with a plurality of L-shaped supporting guide rails, and each L-shaped supporting guide rail is connected with a locating pin guide sleeve. The utility model adopts the bottom shock absorber and the side shock absorber, and reduces overload on vehicle-mounted electrical equipment in the running process of the vehicle by utilizing the vibration isolation effect of the shock absorber; the organ type protective cover is adopted, the vibration of the cabinet is relieved by utilizing the retractility of the organ type protective cover, and the collision between the bottom plate of the cabinet and the joint is avoided.

Description

Shock attenuation and size adjustable light on-vehicle rack
Technical Field
The utility model relates to a light vehicle-mounted cabinet with adjustable shock absorption and size, and belongs to the technical field of vehicle cabinets.
Background
With the continuous improvement of the performance of the vehicle-mounted electrical equipment, the vehicle-mounted system electrical equipment installation cabinet is facing the trend of light weight, modularization and structure/function integration development.
The existing metal cabinet has the characteristics of good impact toughness and easiness in processing, but the problems of heavy weight, low strength, insufficient functions, poor adaptability and the like are particularly obvious in vehicle-mounted application, so that the vehicle load ratio is influenced.
In the prior art, a composite cabinet has become a viable alternative due to the significant advantages of light weight, high strength, corrosion resistance, good environmental suitability and the like. However, the existing composite material cabinet cannot meet the installation requirements of electrical equipment with different sizes, and the production cost is high, so that the application range of the composite material cabinet in vehicles is limited. In order to ensure safe and stable operation of internal electrical equipment in the running process of a vehicle, development of a novel vehicle-mounted cabinet which is light in weight, resistant to vibration and capable of meeting electrical equipment of different sizes is needed to meet the requirements of increasingly developed vehicle-mounted electrical equipment.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the light vehicle-mounted cabinet with adjustable shock absorption and size, which realizes the installation of vehicle-mounted system electrical equipment with different sizes on the premise of ensuring the rigidity and the light weight of the cabinet, effectively buffers the overload of the vehicle running on the cabinet electrical equipment and assists the upgrading development of the new-generation vehicle-mounted electrical equipment.
The utility model is realized by the following technical scheme.
The utility model provides a light vehicle-mounted cabinet with adjustable shock absorption and size, which comprises a cabinet framework and a cabinet skin wrapped outside the cabinet framework; a front door, a rear door, a left door plate and a right door plate are respectively arranged on the front, the rear, the left and the right of the cabinet skin to form a cabinet; the bottom and the side surfaces of the cabinet are respectively provided with a plurality of bottom shock absorbers and side shock absorbers, and a telescopic organ protective cover is arranged between the bottom shock absorbers and the bottom of the cabinet; the cabinet framework is provided with a plurality of L-shaped guide rail supports, and each L-shaped guide rail support is connected with a locating pin guide sleeve.
The L-shaped supporting guide rail is connected with the electrical equipment through the locating pin guide sleeve.
The front door, the rear door, the left door plate and the right door plate are all made of aluminum honeycomb plate composite materials.
The bottom damper is a GTK-L type damper.
The side shock absorber is a GBJ-180BK type back threaded back frame vibration isolator.
The cabinet framework is an aluminum alloy framework.
The utility model has the beneficial effects that:
(1) the bottom shock absorber and the side shock absorber are adopted, and the shock absorber is utilized to isolate vibration, so that overload on vehicle-mounted electrical equipment in the running process of a vehicle is reduced;
(2) the organ type protective cover is adopted, the vibration of the cabinet is relieved by utilizing the retractility of the organ type protective cover, and the collision between the bottom plate of the cabinet and the joint is avoided.
(3) The L-shaped guide rail support is adjusted and placed on the slide rail surface of the cabinet framework so as to meet the installation requirements of electrical equipment with different sizes, and meanwhile, the locating pin guide sleeve is fastened with the electrical equipment, so that vibration of the equipment in the running process is prevented.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic layout of the bottom snubber of the present utility model;
FIG. 3 is a schematic layout of a side damper of the present utility model;
FIG. 4 is a graph of the frequency of the vibration environment of the combined wheeled vehicle of the present utility model;
FIG. 5 is an arrangement of the present utility model for loading electrical devices of different sizes;
FIG. 6 is a schematic view of the profile of the present utility model with reduced weight;
FIG. 7 is a schematic diagram of the matrix of an aluminum honeycomb panel of the utility model;
in the figure: the equipment comprises a 1-equipment cabinet skin, a 2-right side door plate, a 3-L-shaped supporting guide rail, a 4-equipment cabinet framework, a 5-front door, a 6-locating pin guide sleeve, a 7-organ protective cover, an 8-bottom shock absorber, a 9-left side door plate, a 10-side shock absorber and a 11-rear door.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
Example 1
The light vehicle-mounted cabinet with adjustable shock absorption and size as shown in figures 1-7 comprises a cabinet framework 4 and a cabinet skin 1 wrapped outside the cabinet framework 4; a front door 5, a rear door 11, a left side door plate 9 and a right side door plate 2 are respectively arranged on the front, the rear, the left and the right of the cabinet skin 1 to form a cabinet; the bottom and the side of the cabinet are respectively provided with a plurality of bottom shock absorbers 8 and side shock absorbers 10, and a telescopic organ protection cover 7 is arranged between the bottom shock absorbers 8 and the bottom of the cabinet; the cabinet framework 4 is provided with a plurality of L-shaped supporting guide rails 3, and each L-shaped supporting guide rail 3 is connected with a locating pin guide sleeve 6.
The L-shaped supporting guide rail 3 is connected with electrical equipment through a positioning pin guide sleeve 6.
The front door 5, the rear door 11, the left door plate 9 and the right door plate 2 are all made of aluminum honeycomb plate composite materials.
The bottom damper 8 is a GTK-L type damper.
The side damper 10 is a GBJ-180BK type back threaded back frame vibration isolator.
The cabinet framework 4 is an aluminum alloy framework.
Specifically, through the vibration isolation effect of the bottom damper 8 and the side damper 10, the impact of the vehicle on the electric equipment in the cabinet during running is reduced.
Specifically, through the elasticity of organ protection casing 7, avoid the rack bottom plate to collide with the junction under the rack vibration condition.
Specifically, the L-shaped supporting guide rail 3 can adjust the installation space of the electrical equipment, so that different automotive electrical equipment can be placed in the same cabinet, and the electrical equipment is tightly fixed with the electrical equipment through the guide sleeve of the locating pin, so that the electrical equipment is prevented from vibrating in the marching process.
Specifically, the cabinet framework 4 is an aluminum alloy section, the lightweight design principle is followed, the material with smaller load is removed according to the characteristic that the element is gradually loaded, and the cutting angle of the section is adjusted to match the actual stress curve.
Example 2
The cabinet design and the size of the plug-in box shown in fig. 1 are based on national standard CB/T22690-2008, "cabinet and plug-in box of general mechanical structure of data communication equipment", and the selection of the bottom damper 8 and the side damper 10 is based on Q/QJB 2005 1-2004 "cabinet case accessory".
Example 3
Considering that the vehicle-mounted cabinet needs to adapt to the working environment of the wheeled vehicle, and combining the total weight, the size and the structural distribution of the cabinet, the vibration transmissibility and the natural frequency are considered when the vibration absorber is selected to restrain the resonance of the cabinet and prevent the equipment from being damaged due to the excessive resonance transmissibility, the scheme of combining the bottom vibration absorber 8 and the side vibration absorber 10 is adopted, the GTK-L type vibration absorbers are uniformly arranged at the bottom of the cabinet, the number of the GTK-L type vibration absorbers is 9, the number of the GTK-L type vibration absorbers is 2, and the number of the GBJ-180BK type back threaded type back frame vibration isolators is specifically arranged as shown in figures 2 and 3.
Example 4
Vibration tests were performed as loading excitation according to the vibration environment specified by GJB 150.16a-2009 "experimental method for military equipment experimental environment", the specific vibration environment is as shown in fig. 4. The cabinet for loading the electrical equipment shown in fig. 5 is taken as a test object, the horizontal displacement of the GTK-L type vibration isolator at the bottom is + -8 mm, the horizontal displacement of the GBJ-180BK type side vibration isolator is less than or equal to 3mm, and the horizontal displacement of the upper part of the equipment is effectively limited.
Example 5
According to the specific size of the vehicle-mounted electrical equipment, a proper plug box is selected, an L-shaped supporting guide rail 3 is arranged on a cabinet framework, the installation space of the electrical equipment is adjusted, a locating pin guide sleeve is adopted to fasten the electrical equipment, and vibration of the equipment in the running process is prevented. The boxes with different sizes and masses are selected to be placed in the cabinet, and an arrangement cabinet is provided for loading different-size electrical equipment arrangement patterns as shown in fig. 5.
Example 6
The cabinet framework is formed by connecting section aluminum alloy through threads, and light-weight design is carried out under the condition that the rigidity of the cabinet framework is not affected. By matching the true stress curve, the material with smaller stress of the profile aluminum alloy is removed, and the lightweight design is carried out, and the concrete weight reduction design is shown in fig. 6.
Example 7
The cabinet door comprises a left cabinet door, a right cabinet door, a front door, a rear door and an aluminum honeycomb composite material, wherein aluminum honeycomb is filled in a composite material structure matrix of the cabinet door, an aluminum plate with the thickness of 0.5mm is covered outside the cabinet door, and the aluminum honeycomb plate matrix is shown in figure 7. Compared with the metal cabinet door, the aluminum honeycomb composite cabinet door has the advantages of effectively reducing the structural quality, being strong in adaptability and the like, and compared with the carbon fiber composite cabinet door, the aluminum honeycomb composite cabinet door has the advantages of being good in economical efficiency, short in processing period and the like.
Example 8
According to the principle that the elements gradually participate in the stress phenomenon, the materials with smaller stress are removed and are in line with the actual stress curve, all the aluminum alloy sections forming the framework of the cabinet are subjected to weight reduction design according to the principle, and on the basis that the rigidity is ensured, the side door plates, the right door plates, the front door and the rear door are made of aluminum honeycomb structure composite material door plates, honeycomb aluminum is filled in an aluminum honeycomb plate matrix, and aluminum plates with the thickness of 0.5mm are adhered on the two surfaces.
In summary, the beneficial effects of the utility model are as follows: the bottom shock absorber, the side shock absorber and the organ protective cover are utilized to reduce overload of the electric equipment of the cabinet caused by the vehicle in the running process; meanwhile, the space for placing the electrical equipment is adjusted by placing the L-shaped supporting guide rail on the framework structure of the cabinet, and the space is tightly fixed with the electrical equipment by the guide sleeve of the positioning pin, so that the combination is prevented from vibrating in the driving process, and the stable operation of the vehicle-mounted electrical equipment in the driving process is ensured; the cabinet door of the cabinet made of the composite material and adopting the cabinet framework of the variable-section profile aluminum alloy and the aluminum honeycomb panel structure realizes the unification of the light weight design and the economy of the vehicle-mounted cabinet.

Claims (6)

1. The utility model provides a shock attenuation and light vehicle-mounted rack of size adjustable, includes rack skeleton (4) and parcel cabinet covering (1) outside rack skeleton (4), installs qianmen (5), back door (11), left side door board (9), right side door board (2) respectively around cabinet covering (1), forms rack, its characterized in that: the bottom and the side of the cabinet are respectively provided with a plurality of bottom shock absorbers (8) and side shock absorbers (10), and a telescopic organ protective cover (7) is arranged between the bottom shock absorbers (8) and the bottom of the cabinet; a plurality of L-shaped supporting guide rails (3) are arranged on the cabinet framework (4), and each L-shaped supporting guide rail (3) is connected with a locating pin guide sleeve (6).
2. The shock absorbing and size adjustable light weight vehicle mounted cabinet of claim 1 wherein: the L-shaped supporting guide rail (3) is connected with electrical equipment through the locating pin guide sleeve (6).
3. The shock absorbing and size adjustable light weight vehicle mounted cabinet of claim 1 wherein: the front door (5), the rear door (11), the left door plate (9) and the right door plate (2) are all made of aluminum honeycomb plate composite materials.
4. The shock absorbing and size adjustable light weight vehicle mounted cabinet of claim 1 wherein: the bottom damper (8) is a GTK-L type damper.
5. The shock absorbing and size adjustable light weight vehicle mounted cabinet of claim 1 wherein: the side shock absorber (10) is a GBJ-180BK type back threaded back frame vibration isolator.
6. The shock absorbing and size adjustable light weight vehicle mounted cabinet of claim 1 wherein: the cabinet framework (4) is an aluminum alloy framework.
CN202321305893.1U 2023-05-26 2023-05-26 Shock attenuation and size adjustable light on-vehicle rack Active CN219938776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321305893.1U CN219938776U (en) 2023-05-26 2023-05-26 Shock attenuation and size adjustable light on-vehicle rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321305893.1U CN219938776U (en) 2023-05-26 2023-05-26 Shock attenuation and size adjustable light on-vehicle rack

Publications (1)

Publication Number Publication Date
CN219938776U true CN219938776U (en) 2023-10-31

Family

ID=88501786

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321305893.1U Active CN219938776U (en) 2023-05-26 2023-05-26 Shock attenuation and size adjustable light on-vehicle rack

Country Status (1)

Country Link
CN (1) CN219938776U (en)

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