CN201051621Y - An electrical appliance screen cabinet - Google Patents

Abstract

The utility model relates to a screen cupboard of an electric appliance, which comprises an upright column, a panel, and a door, wherein the upright column, the panel, and the door are fitting parts which are formed by steel plates which are profiled, each fitting part is mutually butt-jointed by welding. The upright column is a structure with four S-shaped strengthening upright columns, and the S-shaped strengthening upright columns are welded with each panel. The utility model has the advantages of light weight and simple structure, which can utilize the advantages of excellent profiling fitting parts intensity when the utility model guarantees using functions of the screen cupboard of the electric appliance, the structure of the utility model can be achieved by a general bending machine, the bending is simple and easy. The utility model has excellent welding procedure, and the upright column and strengthening ribs which adopt a profiling structure can lighten the weight of a cupboard body when the utility model guarantees the cupboard body with higher intensity, and welding performance is improved. And the cupboard body adopts that a thin steel plate and the surface of the thin steel plate are contacted and overlapped, which is easy for adopting an electric resistance point welding, welding is firm, stable, and convenient, and the appearance of the utility model is smooth and aesthetic, and the utility model has excellent paint beautifying effect.

Description

An electrical screen cabinet

technical field

The utility model relates to an electric screen cabinet, in particular to an electric screen cabinet more suitable for electric locomotives.

Background technique

The electrical screen cabinet is a widely used power distribution equipment, and it is an indispensable important electrical equipment on electric locomotives. In the prior art, the cabinet skeleton structure of the electrical screen cabinet is responsible for the placement of important electrical components of the locomotive and the function of ensuring that each electrical component can work well. According to the specific requirements of different models, the shape and size of the cabinet can be designed in a variety of ways, but most of the cabinet structures are similar.

At present, the main structure of the electric locomotive electrical screen cabinet is an angle steel overlapping structure. After forming a skeleton, the side plates, top plates, bottom plates, etc. are welded on the periphery to form a complete cabinet. Since the advent of electric locomotives, this traditional cabinet structure has been in use. In the history of electric locomotive manufacturing, it has also occupied a considerable period of time as a representative of cabinet structure design. Its biggest advantage is its solid frame and reliable strength. However, the defects are also very prominent, which are manifested in the following aspects: first, the welding process is poor, the structure is easy to deform after welding, especially the welding deformation of the fillet weld is relatively large, and the flatness of the peripheral side plates after welding is not easy to ensure, especially Larger cabinet body; second, a large number of angle steels are used in the structure, and the cross-sectional area of angle steel is larger than that of steel plate stamping and forming parts. Therefore, the use of angle steel to make the cabinet body is difficult to achieve the goal of light weight; third, the manufacturing cost of the cabinet body is relatively high, because a large number of profiles are used, such as angle steel and channel steel, so the price is relatively expensive.

In view of the above-mentioned defective, the designer deeply feels that there should be some kind of better cabinet structure to replace it. On the premise of meeting the needs of locomotive use, the above-mentioned problems and the like are overcome. To ensure that the effect of the new cabinet structure is better, so with its many years of professional manufacturing experience in R&D and design and certain process knowledge, it actively researches and improves, and finally develops the electrical screen cabinet of the utility model.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the problems of poor welding process, heavy weight and high cost in the prior art of the electric screen cabinet body structure, and at the same time satisfy the use function of the electric screen cabinet.

For this reason, the electrical screen cabinet of the present utility model includes a column, a panel and a door, wherein the column, the panel and the door are parts formed by pressing steel plates, and the parts are connected to each other by welding, and the The columns are four S-shaped reinforced column structures, and the S-shaped columns are welded to each panel.

The electrical screen cabinet as described above, wherein the S-shaped reinforcing column includes a first section, a second section extending from the first section and bending perpendicular to the first section, extending from the second section, bending and a third section perpendicular to the second section, a fourth section extending and bending from the third section and perpendicular to the third section, wherein the first section and the third section are located on both sides of the second section, The second section and the fourth section are located on both sides of the third section, and the first section and the fourth section are perpendicular to the opposite extension line of the bending point.

The above-mentioned electrical screen cabinet, wherein, the door provided on the upper part and the door provided on the lower part of the electrical screen cabinet are formed by bending and pressing steel plates, and the opening angle of the doors is 180°.

The electrical screen cabinet as described above, wherein, the door provided on the upper part can be opened up and down, and the door provided on the lower part can be opened from both sides.

The electrical screen cabinet as described above, wherein, the lower part of the electrical screen cabinet is provided with a front beam, a rear beam, and a lower beam, and the front beam, the rear beam, and the lower beam Assembled and welded.

The electrical screen cabinet as described above, wherein the electrical screen cabinet is provided with a wire trough plate, and the wire trough plate is provided with dense rectangular holes that can be used to fix cables, and the wire trough plate is welded to the side panel of the cabinet body connect.

The electrical screen cabinet as described above, wherein an electrical equipment inspection door is arranged on the side panel of the electrical screen cabinet.

The electrical screen cabinet as described above, wherein the panels include left and right side panels and a rear panel, at least one U-shaped pressure rib is vertically arranged and fixedly connected with the left and right side panels, and the U-shaped The front ends of the two vertical walls of the pressure-shaped reinforcing rib are folded toward the outside to form a connecting portion, and the connecting portion is fixedly connected with the left and right side panels.

Compared with the prior art, the electrical screen cabinet of the utility model has the following characteristics and advantages:

1. The electrical screen cabinet of the present utility model is light in weight, because the main supporting beams of the cabinet body are formed by stamping and forming of thin steel plates, hereinafter referred to as profiled, the column is formed as an S-shaped structure, and the profiled reinforcing rib is a U-shaped structure. For example, the support beam can be formed by pressing steel plates with a thickness of 2mm, thus replacing the original bulky angle steel welding cabinet;

2. The electric screen cabinet of the utility model has a simple pressing structure, which can take advantage of the good strength of the pressing parts while ensuring the use function of the electric screen cabinet. Its structure can be realized by a general bending machine, and the bending is simple and easy ;

3. The electrical screen cabinet of the utility model has good welding technology, and adopts the column and reinforcing rib of the pressed structure, which not only ensures the high strength of the cabinet body, but also reduces the weight of the cabinet body and improves the weldability. And the cabinet body is made of thin steel plate and the surface of the thin steel plate is contacted and overlapped, which is easy to use resistance spot welding, the welding is firm and stable, and the welding is convenient;

4. The appearance of the electrical screen cabinet of the utility model is flat and beautiful. Due to the use of resistance spot welding, the welding deformation is smaller than that of traditional fillet welds.

Description of drawings

Fig. 1A, 1B and Fig. 1C are the front view, side view and top view of a specific embodiment of the electric screen cabinet of the present utility model;

Fig. 2 is the partition schematic diagram of the electric screen cabinet of the present utility model;

Fig. 3A and Fig. 3B are the schematic diagrams of the columns of the electrical screen cabinet of the present invention, wherein Fig. 3A is a schematic diagram of the front view, and Fig. 3B is a schematic diagram of the side view;

Fig. 4 is the comparison diagram of profiled part of the present utility model and existing locomotive cabinet angle steel, channel steel section;

Fig. 5 is the trunking board diagram of the electric screen cabinet of the present utility model;

Fig. 6 is a schematic cross-sectional view along line E-E among Fig. 1A;

FIG. 7 is a schematic cross-sectional view along line F-F in FIG. 1A .

Detailed ways

Taking a locomotive signal cabinet as an example, the technical solutions, technical effects and technical problems to be solved of the utility model electric screen cabinet are further described in detail.

Please refer to Fig. 1A, Fig. 1B, and Fig. 1C, which are schematic diagrams of an embodiment of the electrical panel cabinet of the present invention, wherein Fig. 1A is a schematic front view, Fig. 1B is a schematic side view, and Fig. 1C is a schematic top view of Fig. 1A. The electric screen cabinet of the present utility model comprises column 1, panel 2 and door 3,4, and panel 2 comprises left and right panel 21,22 and rear panel 23, and described column 1, panel 2 and door 3,4 are made of steel plate It is formed by pressing, and each part is the basic component element of the cabinet. This embodiment includes four uprights 1 , the cross section of each upright 1 is an S-shaped structure, and the panel 2 is connected to each upright by resistance spot welding. 3A and 3B, the S-shaped column 1 includes a first section 101, a second section 102 extending and bending from the first section 101 and perpendicular to the first section, extending and bending from the second section 102 And the third section 103 perpendicular to the second section, and the fourth section 104 extended and bent from the third section 103 and perpendicular to the third section, wherein the first section 101 and the third section 103 are located in the On both sides of the second section 102, the second section 102 and the fourth section 104 are located on both sides of the third section 103, and the first section 101 and the fourth section 104 are on the reverse extension line of the bending point Orthogonal.

The electrical screen cabinet is surrounded by left and right panels and a rear panel. S-shaped columns 1 are arranged on the four corners, and the left and right side panels and the rear panels are overlapped at the orthogonal places of the reverse extension lines of the bending points of the first section 101 and the fourth section 104 of the S-shaped columns. Compared with the known angle steel structure, the structure of the utility model not only has better strength, but also reduces weight and improves weldability. Please refer to the comparison of the two structures shown in (1) in Fig. 4.

In this embodiment, the electrical screen cabinet of the present utility model is provided with upper and lower parts, the upper part 5 is provided with a door 7, the upper part 5 is provided with various connecting wires and sockets, and the lower part 6 is provided with doors 3, 4 , a plurality of pull-out partitions 8 are arranged in the lower part, and the partitions 8 are arranged in the channel member 9 .

Fig. 2 is a schematic diagram of the partition board of the electrical screen cabinet of the present invention, on which the partition board 8 is provided with installation holes 10, which can be used to place electrical equipment. The dividing plate 8 can slide in the guide groove part 9, so that the dividing plate 8 can be pulled out to the outside of the cabinet for operation when installing or overhauling the equipment, and the operation is convenient and simple. At the same time, the height between the partitions 8 can be determined with the size of the equipment, which improves the practicability of the cabinet.

In this embodiment, the door 7 provided on the upper part 5 of the electrical screen cabinet and the doors 3 and 4 provided on the lower part 6 are formed by bending and pressing steel plates, and the opening angle of the doors is 180°. The door of the electric screen cabinet is formed by bending and pressing a steel plate with a thickness of 2 mm. The door 7 provided on the upper part 5 is opened up and down, and the doors 3 and 4 provided on the lower part 6 are opened on both sides.

Please refer to Fig. 1A and Fig. 6, the lower part of the electrical screen cabinet is provided with a front crossbeam 11, a rear crossbeam 12 and a lower crossbeam 13, and the front crossbeam 11, the rear crossbeam 12 and the lower crossbeam 13 sets of welded parts. Existing screen cabinets are generally installed with four corner fixing bolts, but the installation of the new screen cabinet on a locomotive only needs to fix two bolts on the front of the cabinet body to fix the cabinet body and the locomotive stand. There are no mounting bolts at the rear, and the positioning pins only need to be inserted into the pin holes of the rear beam and the pin holes of the car body platform. The specific realization relies on having two mounting bolt holes and a dowel hole on the front cross member 11, and having two dowel holes on the rear cross member 12. The purpose of three positioning pin holes is for the positioning of the cabinet, and the bolt holes on the front cross member 11 are used for fixing with the car body platform. The bolt installation of the electrical cabinet can only be done at the front, and there is no bolt connection at the rear, just insert the positioning pin, which is very suitable for installation in the limited space of the locomotive.

Please refer to FIG. 5 , which is a schematic diagram of the trunking board of the electrical panel cabinet of the present invention. The electric screen cabinet is provided with a trunking plate 14, and the trunking plate 14 is provided with dense rectangular holes 15 that can be used to fix cables, as shown in Figures 6 and 7, the trunking plate 14 is vertically aligned with the The right side panel 22 of the cabinet body is welded and connected, and the trunking plate 14 can also function as a reinforcing beam at the same time.

Please refer to FIG. 7 , which is a schematic cross-sectional view of the lower part of the electric screen cabinet of the present invention, so that the structure of the cabinet body can be understood more clearly. Wherein at least one U-shaped compression rib 17 is vertically arranged and fixedly connected with the left and right side panels 21, 22, and the U-shaped compression rib 17 is as shown in (2) in Fig. 4 , which is different from the known Compared with the channel steel structure, the front ends of the two vertical walls 71 of the U-shaped compression rib 17 are folded to the outside sides to form a connecting portion 72, through which the U-shaped compression rib 17 is fixedly connected with the left and right side panels 21, 22. In this embodiment, two U-shaped pressure ribs 17 are respectively arranged on the left and right sides, and the U-shaped pressure ribs 17 are connected with the left and right sides. The right side panels 21, 22 are connected by welding. Compared with the known channel steel structure, the utility model adopts the U-shaped pressure rib 17 to reduce the weight, and at the same time, the welding performance between the connecting portion 72 and the side panel is also greatly improved.

The side of the electric screen cabinet of the utility model is provided with an equipment wiring inspection door 16, which improves the operation convenience of the signal cabinet.

The cabinet body structure of the electric screen cabinet of the utility model is all made of ordinary steel plate Q235A with a thickness of 2mm or 3mm through pressing. The strength is guaranteed by the profiled section shape of the steel plate. The connection between the profiled parts adopts the method of overlapping each other, and the welding method of resistance spot welding is adopted.

According to the specific requirements of different vehicle models, the appearance and size of the cabinet body structure of the electric screen cabinet of the utility model can be various.

The above are only specific embodiments of the utility model, and cannot limit the scope of the utility model implementation with this; that is, any changes and modifications made according to the utility model claims all belong to the scope of the utility model patent protection .

Claims (8)

1. apparatus panel cabinet, comprise column, panel and door, it is characterized in that: described column, panel and the part of door for forming by die mould by steel plate, constitute butt joint mutually by welding between each part, described column is that four S types are strengthened pillar constructions, between described S type column and each panel for being welded to connect.

2. apparatus panel cabinet according to claim 1, it is characterized in that: described S type is strengthened column and is comprised first section, by first section stretch bending and with this first section perpendicular second section, by second section stretch bending and vertical with this second section the 3rd section, by the 3rd section stretch bending and vertical with the 3rd section the 4th section, wherein, described first section and the 3rd section is positioned at described second section both sides, described second section and the 4th section is positioned at described the 3rd section both sides, and first section with the 4th section quadrature on the reverse extending line of its bending point.

3. apparatus panel cabinet according to claim 2 is characterized in that: the door of the top section setting of described apparatus panel cabinet and the door of underclad portion setting are for to be formed by steel plate bending die mould, and the open angle of door is 180 °.

4. according to claim 2 or 3 described apparatus panel cabinets, it is characterized in that: the door that top section is provided with is for opening up and down, and the door that underclad portion is provided with is opened for both sides.

5. apparatus panel cabinet according to claim 2 is characterized in that: the bottom of described apparatus panel cabinet be provided with front beam spare, rear cross beam spare and and sill spare, described front beam spare, described rear cross beam spare with and described sill spare assembly welding form.

6. apparatus panel cabinet according to claim 1 is characterized in that: described apparatus panel cabinet is provided with the wire casing plate, and described wire casing plate is provided with and intensive can be used for fixing the cable rectangular opening, and described wire casing plate and cabinet side panel are welded to connect.

7. apparatus panel cabinet according to claim 1 is characterized in that: described apparatus panel cabinet side panel is provided with an electric equipment access door.

8. apparatus panel cabinet according to claim 1, it is characterized in that: described panel comprises left and right side panel and rear board, at least one U type die mould reinforcement vertically is provided with and fixedlys connected with described left and right side panel, the front end of two vertical walls of described U type die mould reinforcement turns down to both sides external, form connecting portion, this connecting portion is fixedlyed connected with described left and right side panel.

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