Explosion-proof vertical distribution box

Abstract

The application discloses an explosion-proof vertical power distribution box and belongs to the technical field of power distribution boxes. The technical scheme is characterized by comprising a box body, grid plates arranged on the two sides of the box body, side covers arranged on the two sides of the box body and matched with the grid plates, flow channels arranged between the side covers and the grid plates, openings arranged on the upper and lower sides of the side covers, a top cover arranged on the top of the box body, support columns arranged in the box body, carbon dioxide tank bodies arranged on the support columns and valve body assemblies installed on the carbon dioxide tank bodies. The application can control the fire in the power distribution box and improve the safety.

Description

Technical Field

[0001] This application belongs to the field of distribution box technology, and particularly relates to an explosion-proof vertical distribution box. Background Technology

[0002] A distribution box is a metal cabinet in which switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment are assembled according to electrical wiring requirements. During normal operation, the circuit can be connected and disconnected by manual or automatic switches. In case of fault or abnormal operation, the circuit can be cut off or alarm can be triggered by protective electrical appliances. Various parameters of the distribution box can be displayed by measuring instruments, and some electrical parameters can be adjusted. When it deviates from the normal operating state, it will give a prompt or issue a signal.

[0003] However, when using a distribution box, there is always a risk of fire due to electrical factors (short circuits, overloads, etc.), environmental factors (moisture, dust, etc.), and physical factors (mechanical vibration or impact, etc.). During the fire process, dense smoke will be produced, and the rising temperature and concentration of the dense smoke can pose a risk of combustion and explosion. Therefore, improvements are needed to address this issue. Utility Model Content

[0004] The purpose of this application is to address the aforementioned technical problems by providing an explosion-proof vertical distribution box that can control fires inside the distribution box and improve safety.

[0005] This application provides an explosion-proof vertical distribution box, comprising: The enclosure has grid panels on both sides; Side covers are placed on both sides of the box and are adapted to the grid plate. A flow channel is provided between the side covers and the grid plate. Openings are provided on the upper and lower sides of the side covers. The top cover is placed on top of the box. Support columns are placed inside the box; Several carbon dioxide tanks are provided and placed on support columns; Valve body assembly, installed on the carbon dioxide tank.

[0006] The enclosure houses electrical components and is connected to the external space via a grid panel. Insect and dust screens are installed on the grid panel, and side covers enhance its protective performance. The side covers and top cover are connected to the enclosure using bolts, nuts, or screws. The top and side covers prevent rainwater from directly entering the enclosure. Air inside the enclosure flows through the grid panel and exits through the openings in the circulation channels. Support columns enhance the enclosure's structural stability. A compressed carbon dioxide tank stores carbon dioxide, controlled by a valve assembly. In the event of a fire inside the enclosure, the valve opens, releasing the carbon dioxide and continuously expelling dense smoke. The released carbon dioxide is below room temperature, further reducing the internal temperature and increasing the explosion-proof performance of the distribution box. The support columns are also connected to the enclosure using bolts, nuts, or screws.

[0007] Furthermore, the support column includes: Column; Cover plate, installed and connected to the column; The column and the cover plate form a cavity to accommodate the carbon dioxide tank.

[0008] The column has high structural strength. The cover plate and the column are connected by fasteners such as bolts. The cavity between the column and the cover plate is used to accommodate the carbon dioxide tank, which improves the installation stability of the carbon dioxide tank and the compactness of the overall installation structure. The cross-section of the column is I-shaped, and the cavity is divided into left and right sides.

[0009] Furthermore, the cover plate includes: Mounting holes are provided for fitting the valve body assembly.

[0010] The mounting holes are formed by processes such as stamping or laser cutting. The mounting holes are set on the cover plate and correspond to the valve body assembly. The mounting holes facilitate the placement of the valve body assembly outside the cavity, making it easy to sense the ignition situation and to facilitate the release of carbon dioxide.

[0011] Furthermore, the support column also includes: Baffles are evenly distributed on the column and are placed between adjacent carbon dioxide tanks.

[0012] The partition is welded to the column or installed and connected by fasteners such as bolts. The carbon dioxide tank is placed on the partition, which makes the carbon dioxide tank evenly distributed in the cavity, so as to achieve a uniform fire extinguishing effect in the direction of gravity in the box. Placing the carbon dioxide tank on the partition also facilitates the inspection and replacement of the carbon dioxide tank.

[0013] Furthermore, the valve body assembly includes: Valve seat; The valve core is movably mounted on the valve seat; The first spring is placed between the valve core and the valve seat; The ball bearing is mounted on the valve seat. A release seat is placed on a valve seat, and the release seat is provided with a release groove that is adapted to a ball bearing. A thermosensitive glass element is placed between the release seat and the valve seat; The second spring is placed between the release seat and the valve seat; The valve core is provided with a groove corresponding to the ball bearing.

[0014] The valve seat has a threaded connection with the carbon dioxide tank body. The valve core is movably connected to the valve seat, and the valve core and valve seat can move relative to each other along their axis. The release seat is movably connected to the valve seat, and the release seat and valve seat can move relative to each other along their axis. Under normal conditions, the heat-sensitive glass element abuts between the release seat and the valve seat, compressing the second spring and displacing the release groove and the ball, so that the ball is embedded in the groove, and the valve core and valve seat are engaged, controlling the valve core and valve seat to be in the closed state. When a fire occurs in the tank and the heat-sensitive glass element breaks, the release seat moves under the action of the second spring, so that the release groove aligns with the ball, and the ball separates from the groove, realizing the relative movement between the valve core and valve seat, thereby opening and venting the carbon dioxide gas in the carbon dioxide tank.

[0015] Furthermore, the valve seat includes: The nozzle is placed on the valve seat.

[0016] The nozzle is aimed at the inside of the housing, so that the emitted carbon dioxide gas can act on the electrical components, and in the event of a fire, it can control, weaken or even extinguish the fire.

[0017] The beneficial effects of this application are: 1. The grid plate facilitates airflow inside and outside the box, making it easier to expel thick smoke in case of fire.

[0018] 2. Improve protection of the grid plate by using side covers.

[0019] 3. Carbon dioxide gas is supplied through the carbon dioxide tank, which can control the fire when electrical components inside the box catch fire. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the distribution box in this application; Figure 2 This is a cross-sectional structural diagram of the distribution box of this application; Figure 3 This is a partial structural schematic diagram of the support column of this application; Figure 4 For the purposes of this application Figure 3 A magnified view of point A on the forehead; Figure 5 This is a schematic diagram of the valve body assembly of this application; In the attached diagram, the following labels are used: 100, housing; 110, grid plate; 200, side cover; 210, flow channel; 220, opening; 300, top cover; 400, support column; 410, column; 420, cover plate; 421, mounting hole; 430, cavity; 440, partition plate; 500, carbon dioxide tank; 600, valve assembly; 610, valve seat; 611, nozzle; 620, valve core; 621, groove; 630, first spring; 640, ball bearing; 650, release seat; 651, release groove; 660, thermosensitive glass component; 670, second spring. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] The embodiments of this application are described in detail below with reference to the accompanying drawings, through specific examples and application scenarios.

[0024] Example 1: like Figures 1-3 As shown in the figure, this application embodiment provides an explosion-proof vertical distribution box, including: Box 100, with grid plates 110 provided on both sides of the box 100; Side cover 200 is placed on both sides of the box body 100 and is adapted to the grid plate 110. A flow channel 210 is provided between the side cover 200 and the grid plate 110. Openings 220 are provided on the upper and lower sides of the side cover 200. The top cover 300 is placed on top of the box body 100; The support column 400 is placed inside the box 100; Several carbon dioxide tanks, each 500, are installed and placed on support columns 400. Valve body assembly 600 is installed on carbon dioxide tank 500.

[0025] The enclosure 100 is used to install electrical components. A grid plate 110 facilitates the connection between the enclosure 100 and the external space. An insect-proof and dust-proof screen is installed on the grid plate 110. Side covers 200 enhance the protective performance of the grid plate 110. The side covers 200 and enclosure 100 are connected by bolts, nuts, or screws. The top cover 300 and enclosure 100 are also connected by bolts, nuts, or screws. The top cover 300 and side covers 200 prevent rainwater from directly entering the enclosure 100. Air inside the enclosure 100 flows through the grid plate 110 and then through the flow channel 210 to the opening 220. The support column 400 enhances the support performance of the enclosure 100, further improving the structural stability of the enclosure 100. The carbon dioxide tank 500 stores compressed carbon dioxide, which is controlled by the valve assembly 600. When a fire occurs inside the enclosure 100, the valve assembly 600 opens, releasing the carbon dioxide from the carbon dioxide tank 500 and continuously expelling the dense smoke from the enclosure 100. The carbon dioxide is released below room temperature, which also reduces the temperature inside the enclosure 100, increasing the explosion-proof performance of the distribution box. The support column 400 is connected to the enclosure 100 by fasteners such as bolts, nuts, or screws.

[0026] Example 2: like Figures 2-4 As shown, this application embodiment provides an explosion-proof vertical distribution box, which, in addition to including the above-mentioned technical features, further includes the following: the support column 400 includes: Column 410; The cover plate 420 is installed and connected to the column 410; The column 410 and the cover plate 420 form a cavity 430 to accommodate the carbon dioxide tank 500.

[0027] The column 410 has high structural strength. The cover plate 420 is connected to the column 410 by bolts and other fasteners. The cavity 430 between the column 410 and the cover plate 420 is used to accommodate the carbon dioxide tank 500, which improves the installation stability of the carbon dioxide tank 500 and the compactness of the overall installation structure. The cross-section of the column 410 is I-shaped, and the cavity 430 is divided into left and right sides.

[0028] Furthermore, the cover plate 420 includes: Mounting hole 421 is adapted to valve body assembly 600.

[0029] The mounting hole 421 is formed by stamping or laser cutting. The mounting hole 421 is set on the cover plate 420 and corresponds to the valve body assembly 600. The mounting hole 421 facilitates placing the valve body assembly 600 outside the cavity 430, which is convenient for sensing the ignition situation and for releasing carbon dioxide.

[0030] Furthermore, the support column 400 also includes: The partition 440 is evenly distributed on the column 410 and is placed between adjacent carbon dioxide tanks 500.

[0031] The partition plate 440 is welded to the column 410 or installed and connected by fasteners such as bolts. The carbon dioxide tank 500 is placed on the partition plate 440. The partition plate 440 makes the carbon dioxide tank 500 evenly distributed in the cavity 430, so as to achieve a uniform fire extinguishing effect in the direction of gravity within the box 100. Furthermore, placing the carbon dioxide tank 500 on the partition plate 440 facilitates the inspection and replacement of the carbon dioxide tank 500.

[0032] Example 3: like Figures 3-5 As shown, this application embodiment provides an explosion-proof vertical distribution box, which, in addition to including the above-mentioned technical features, further includes the valve body assembly 600 comprising: Valve seat 610; The valve core 620 is movably mounted on the valve seat 610; The first spring 630 is positioned between the valve core 620 and the valve seat 610; Ball bearing 640 is movably mounted on valve seat 610; A release seat 650 is placed on a valve seat 610. The release seat 650 is provided with a release groove 651, which is adapted to the ball 640. Thermistor glass element 660 is placed between release seat 650 and valve seat 610; The second spring 670 is positioned between the release seat 650 and the valve seat 610; The valve core 620 is provided with a groove 621 corresponding to the ball 640.

[0033] Valve seat 610 has a threaded portion that is threadedly connected to carbon dioxide tank 500. Valve core 620 is movably connected to valve seat 610, and valve core 620 and valve seat 610 can move relative to each other along their axis. Release seat 650 is movably connected to valve seat 610, and release seat 650 and valve seat 610 can move relative to each other along their axis. Under normal conditions, the heat-sensitive glass element 660 abuts between release seat 650 and valve seat 610, compressing the second spring 670 and displacing release groove 651 and ball 640. The ball bearing 640 is embedded in the groove 621, and the valve core 620 and valve seat 610 are engaged, controlling the valve core 620 and valve seat 610 to be in the closed state. When a fire occurs inside the housing 100, causing the heat-sensitive glass component 660 to break, the release seat 650 moves under the action of the second spring 670, so that the release groove 651 corresponds to the ball bearing 640, causing the ball bearing 640 to separate from the groove 621, realizing relative movement between the valve core 620 and valve seat 610, thereby opening and venting the carbon dioxide gas in the carbon dioxide tank 500.

[0034] Furthermore, the valve seat 610 includes: The nozzle 611 is placed on the valve seat 610.

[0035] The nozzle 611 is aimed at the inside of the housing 100, so that the emitted carbon dioxide gas can act on the electrical components, and when a fire occurs, it can control, weaken or even extinguish the fire.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An explosion-proof vertical distribution box, characterized in that, include: A housing (100) has grid plates (110) on both sides. Side cover (200) is placed on both sides of the box body (100) and adapted to the grid plate (110). A flow channel (210) is provided between the side cover (200) and the grid plate (110). Openings (220) are provided on the upper and lower sides of the side cover (200). The top cover (300) is placed on top of the box body (100); The support column (400) is placed inside the box (100); Several carbon dioxide tanks (500) are provided and placed on support columns (400); Valve body assembly (600) is mounted on carbon dioxide tank (500).

2. The explosion-proof vertical distribution box according to claim 1, characterized in that, The support column (400) includes: Column (410); The cover plate (420) is installed and connected to the column (410); The column (410) and the cover plate (420) form a cavity (430) for accommodating the carbon dioxide tank (500).

3. The explosion-proof vertical distribution box according to claim 2, characterized in that, The cover plate (420) includes: Mounting hole (421) is adapted to valve body assembly (600).

4. The explosion-proof vertical distribution box according to claim 2, characterized in that, The support column (400) also includes: A partition (440) is evenly distributed on the column (410), and the partition (440) is placed between adjacent carbon dioxide tanks (500).

5. The explosion-proof vertical distribution box according to claim 1, characterized in that, The valve body assembly (600) includes: Valve seat (610); The valve core (620) is movably mounted on the valve seat (610); The first spring (630) is placed between the valve core (620) and the valve seat (610); The ball bearing (640) is movably mounted on the valve seat (610); A release seat (650) is placed on a valve seat (610), and the release seat (650) is provided with a release groove (651), which is adapted to the ball (640); A thermosensitive glass element (660) is placed between the release seat (650) and the valve seat (610); The second spring (670) is placed between the release seat (650) and the valve seat (610); The valve core (620) is provided with a groove (621) corresponding to the ball (640).

6. The explosion-proof vertical distribution box according to claim 5, characterized in that, The valve seat (610) includes: The nozzle (611) is placed on the valve seat (610).

Images