Secondary protection screen cabinet

Abstract

The utility model belongs to the technical field of power equipment, and more particularly relates to a secondary protection screen cabinet which comprises a cabinet body, cabinet doors are arranged on two opposite sides of the cabinet body, heat dissipation areas are arranged on the cabinet doors on the two opposite sides, a plurality of heat dissipation holes are formed in the heat dissipation areas, and the heat dissipation holes are hexagonal. According to the secondary protection screen cabinet provided by the invention, the plurality of hexagonal heat dissipation holes are formed in the cabinet body for ventilation and heat dissipation, so that the mechanical strength of the cabinet body can be ensured, the overall weight of the cabinet body is reduced, the forming area of the heat dissipation holes can be increased to the greatest extent, and the heat dissipation efficiency is improved by increasing the forming area of the heat dissipation holes. And the heat dissipation performance of the secondary protection screen cabinet can be greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power equipment, and more specifically, to a secondary protection screen cabinet. Background Art

[0002] Secondary protection cabinets are mainly used in power systems of substations, power plants and some large-scale projects. Among them, secondary protection cabinets equipped with high-power devices such as supercapacitors or busbar protection devices usually generate a lot of heat, which puts higher requirements on the heat dissipation performance of the cabinets.

[0003] Conventional secondary protection cabinets usually have ventilation holes on the cabinet door and air inlets at the bottom of the cabinet door to achieve heat dissipation. However, considering the need to ensure the strength of the cabinet door board, the number and size of the ventilation holes are limited, resulting in the inability to improve the heat dissipation effect of the secondary protection cabinet. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a secondary protection screen cabinet to solve the technical problem of insufficient heat dissipation performance of the existing secondary protection screen cabinet.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a secondary protection screen cabinet, including a cabinet body, cabinet doors are arranged on the opposite sides of the cabinet body, and heat dissipation areas are provided on the cabinet doors on the opposite sides, and a plurality of heat dissipation holes are opened on the heat dissipation areas, and the shapes of the plurality of heat dissipation holes are all hexagonal.

[0006] Optionally, the total area of ​​the heat dissipation holes in each heat dissipation zone accounts for 93% of the area of ​​the heat dissipation zone.

[0007] Optionally, a plurality of the heat dissipation holes are arranged at intervals, and two adjacent heat dissipation holes face each other at sides.

[0008] Optionally, center points of two adjacent heat dissipation holes are staggered, and the heat dissipation hole is colinear with the center point of the second heat dissipation hole adjacent thereto.

[0009] Optionally, the distance between two adjacent heat dissipation holes is 0.8mm-1.2mm, and the area of ​​a single heat dissipation hole is 20mm. 2 -22mm 2 .

[0010] Optionally, a plurality of devices and mounting components are arranged in the cabinet, and the plurality of devices are arranged in the cabinet; the mounting component includes a mounting plate and a mounting rod, the mounting plate is fixed to the cabinet and to one side of the device, and the mounting rod is fixed to the cabinet and to the other side of the device.

[0011] Optionally, each of the devices is provided with a connecting rod; a plurality of connecting holes are provided on the mounting rod, and each of the connecting holes can be correspondingly sleeved with a connecting rod, so that the mounting rod can simultaneously connect to a plurality of the devices through the plurality of connecting holes.

[0012] Optionally, the mounting assembly further includes a supporting column and a mounting tray, the supporting column is fixed in the cabinet, and a plurality of mounting trays and mounting plates are provided, and the plurality of devices are divided into a plurality of groups, and a group of devices are all mounted on one mounting plate, and both sides of the mounting plate are connected to the mounting tray, and the mounting tray is fixedly connected to the supporting column.

[0013] Optionally, a bending plate is provided on the mounting tray, and the bending plate protrudes from the bottom of the mounting tray toward the direction close to the device and is supported by the bottom of the device.

[0014] Optionally, the support column is provided with a plurality of mounting holes.

[0015] The beneficial effect of the secondary protection screen cabinet provided by the present application is that: compared with the prior art, the secondary protection screen cabinet of the present application is provided with heat dissipation areas on the cabinet doors on both sides of the cabinet body, and a number of hexagonal heat dissipation holes are opened on the heat dissipation areas for ventilation and heat dissipation. The hexagonal structure has the characteristics of high structural strength and stability. The resistance of the hexagonal heat dissipation holes to the extrusion force is much higher than that of the circular, square or other shaped heat dissipation holes, which can solve the problem of weak edges of the heat dissipation holes and easy damage. While ensuring the mechanical strength of the cabinet body and reducing the overall weight of the cabinet body, the opening area of ​​the heat dissipation holes can be increased to the greatest extent. By increasing the opening area of ​​the heat dissipation holes, the heat dissipation performance of the secondary protection screen cabinet can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a secondary equipment cabinet provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of the secondary equipment cabinet provided in an embodiment of the present application from another angle;

[0019] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 4 To show the structural diagram inside the secondary equipment cabinet;

[0021] Figure 5 To show the structural diagram of the secondary equipment cabinet from another angle;

[0022] Figure 6 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of a group of devices in an embodiment of the present application.

[0024] Among them, the reference numerals in the figure are:

[0025] 100-cabinet;

[0026] 1-cabinet door; 10-first cabinet door; 11-second cabinet door; 12-heat dissipation hole; 13-heat dissipation area

[0027] 2-equipment; 20-connecting rod;

[0028] 3-installation assembly; 30-installation plate; 31-installation rod; 310-connection hole; 32-collection plate; 33-support column; 330-installation hole; 34-installation support plate; 340-bending plate;

[0029] 4- Pulley. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the secondary protection cabinet, when the internal equipment is fully loaded or there are many devices with high power consumption, a large amount of heat will be generated and accumulated in the cabinet. If this heat cannot be dissipated quickly, the equipment will be kept in a high temperature state, which is likely to cause thermal shock and damage to the equipment, affecting its performance, causing project delays and losses to users. Therefore, this application improves the structure of the secondary protection cabinet to meet the high heat dissipation performance requirements of the secondary protection cabinet, while also ensuring the structural strength of the secondary protection cabinet.

[0035] Please also read Figures 1 to 3 The secondary protection screen cabinet provided in the embodiment of the present application is now described. The secondary protection screen cabinet comprises a cabinet body 100, cabinet doors 1 are arranged on opposite sides of the cabinet body 100, and heat dissipation areas 13 are arranged on the cabinet doors 1 on opposite sides, and a plurality of heat dissipation holes 12 are opened on the heat dissipation areas 13, and the shapes of the plurality of heat dissipation holes 12 are all hexagonal.

[0036] Compared with the prior art, the secondary protection screen cabinet provided by the present application has heat dissipation areas 13 on both sides of the cabinet door 1 of the cabinet body 100, and a number of hexagonal heat dissipation holes 12 are opened on the heat dissipation area 13 for ventilation and heat dissipation. The hexagonal structure has the characteristics of high structural strength and stability. The hexagonal heat dissipation holes 12 are much more resistant to extrusion force than the heat dissipation holes 12 of round, square or other shapes, which can solve the problem of weak edges and easy damage of the heat dissipation holes 12. While ensuring the mechanical strength of the cabinet body 100 and reducing the overall weight of the cabinet body 100, the opening area of ​​the heat dissipation holes 12 can be increased to the maximum extent. By increasing the opening area of ​​the heat dissipation holes 12, the heat dissipation performance of the secondary protection screen cabinet can be greatly improved.

[0037] The heat dissipation area 13 specifically refers to the area enclosed along the outer periphery of the heat dissipation holes 12 at the end. For example, when a number of heat dissipation holes 12 are concentrated and distributed to form a rectangle, the heat dissipation area 13 is the outermost rectangular block area enclosed by the heat dissipation holes 12 along the outer circle.

[0038] In addition, the heat dissipation holes 12 in the heat dissipation area 13 are arranged to form a honeycomb structure, which has the characteristics of high stability and structural strength.

[0039] In another embodiment of the present application, please continue to refer to Figures 1 to 3The cabinet door 1 includes a first cabinet door 10 and a second cabinet door 11. The first cabinet door 10 is a single-opening cabinet door. The inner side of the first cabinet door 10 is provided with tempered glass. The first cabinet door 10 facilitates the operator to check the equipment 2 in the cabinet body 100 (see Figure 4 ) for installation and management, and the inside of the cabinet 100 can be directly observed from outside the cabinet 100 through the tempered glass. The second cabinet door 11 is a double-opening cabinet door, and the second cabinet door 11 facilitates the operator to install and manage the equipment 2 in the cabinet 100 from the other side.

[0040] Therefore, in the first cabinet door 10, in order to avoid the tempered glass, the heat dissipation area 13 is arranged on the upper side and the lower side of the first cabinet door 10. In the second cabinet door 11, in order to improve the heat dissipation performance of the cabinet 100 as much as possible, the heat dissipation area 13 is arranged around the outer edge of the second cabinet door 11.

[0041] In another embodiment of the present application, the total area of ​​the heat dissipation holes 12 of each heat dissipation zone 13 accounts for 93% of the area of ​​the heat dissipation zone 13 .

[0042] Under the condition of maintaining the same squeezing force, by using hexagonal heat dissipation holes 12, the opening area of ​​the heat dissipation zone 13 can reach a maximum of 93%, thereby maximizing the opening area of ​​the heat dissipation holes 12 of the secondary protection screen cabinet. The inventor has calculated through thermal simulation that under the same conditions, when the internal device 2 of the secondary protection screen cabinet using hexagonal heat dissipation holes 12 is running at full power, the temperature inside the cabinet 100 is reduced by about 38% compared with the conventional cabinet 100, which greatly improves the heat dissipation performance of the secondary protection screen cabinet, and also greatly improves the operating life and reliability of the device 2 in the cabinet 100.

[0043] In another embodiment of the present application, please refer to Figures 1 to 3 , a plurality of heat dissipation holes 12 are arranged at intervals, and two adjacent heat dissipation holes 12 face each other at their edges.

[0044] Since each heat dissipation hole 12 is a hexagonal heat dissipation hole 12, and the hexagon has six sides and six corners, when the hexagonal heat dissipation holes 12 are arranged, there may be a situation where two adjacent heat dissipation holes 12 are corner-to-corner or side-to-side. The situation where two adjacent heat dissipation holes 12 are corner-to-corner is defined as the two adjacent heat dissipation holes 12 are opposite to each other at their corners, and the situation where two adjacent heat dissipation holes 12 are side-to-side is defined as the two adjacent heat dissipation holes 12 are opposite to each other at their sides.

[0045] The hexagonal heat dissipation hole 12 has six sides and six corners. When the heat dissipation holes 12 are arranged and distributed, when two adjacent heat dissipation holes 12 are opposite to each other at an angle, under the same spacing, there will be a lot of redundant space between the two adjacent heat dissipation holes 12 that cannot be used. However, arranging two adjacent heat dissipation holes 12 opposite to each other at the sides can reduce the redundant space between the two adjacent heat dissipation holes 12, and can maximize the ratio of the total area of ​​the heat dissipation holes 12 to the area of ​​the heat dissipation zone 13, thereby improving the heat dissipation performance.

[0046] In another embodiment of the present application, see Figure 3 The center points of two adjacent heat dissipation holes 12 are staggered, and the center point of a heat dissipation hole 12 is on the same line as the center point of the second heat dissipation hole 12 adjacent thereto.

[0047] When the center points of the heat dissipation holes 12 in the same row are arranged in the same line, and two adjacent heat dissipation holes 12 are opposite to each other at an angle, the two adjacent heat dissipation holes 12 are staggered so that the two adjacent heat dissipation holes 12 are opposite to each other at the edge. At the same time, the center points of the two adjacent heat dissipation holes 12 are staggered. In addition, the center point of the heat dissipation hole 12 is in the same line with the center point of the second adjacent heat dissipation hole 12. When a row of heat dissipation holes 12 is arranged in sequence, the line connecting the center points of the row of heat dissipation holes 12 is a wavy line. In this way, it can be ensured that every two adjacent heat dissipation holes 12 are opposite to each other at the edge, increasing the opening area of ​​the heat dissipation holes 12, and at the same time, the structural strength of the cabinet door 1 can be ensured.

[0048] In another embodiment of the present application, the distance between two adjacent heat dissipation holes 12 is 0.8 mm-1.2 mm, and the area of ​​a single heat dissipation hole 12 is 20 mm. 2 -22mm 2 .

[0049] When the distance between two adjacent heat dissipation holes 12 is 0.8 mm to 1.2 mm, the area of ​​a single heat dissipation hole 12 is 20 mm. 2 -22mm 2 When the heat dissipation hole 12 is opened, the area can be increased to the maximum extent, and the overall structural strength of the cabinet 100 can be ensured.

[0050] In another embodiment of the present application, please refer to Figures 4 to 6 A plurality of devices 2 and a mounting assembly 3 are arranged in the cabinet 100. The mounting assembly 3 is used to mount and fix the plurality of devices 2 in the cabinet 100. The plurality of devices 2 are arranged in the cabinet 100. The mounting assembly 3 includes a mounting plate 30 and a mounting rod 31. The mounting plate 30 is fixed to the cabinet 100 and to one side of the device 2. The mounting rod 31 is fixed to the cabinet 100 and to the other side of the device 2.

[0051] A mounting plate 30 is used to fix one side of the device 2 to the cabinet 100, and a mounting rod 31 is used to fix the other side of the device 2 to the cabinet 100. On the one hand, this can ensure the installation reliability of the device 2 and the cabinet 100. On the other hand, using the mounting rod 31 on one side as a mounting component can reduce the shielding area of ​​the device 2 by the mounting component, thereby leaving more air diversion space, thereby further improving the heat dissipation performance of the secondary protection screen cabinet.

[0052] In another embodiment of the present application, please continue to refer to Figures 4 to 6 , multiple devices 2 are arranged and distributed in the cabinet 100, and each device 2 is provided with a connecting rod 20. A plurality of connecting holes 310 are provided on the mounting rod 31, and each connecting hole 310 can be correspondingly sleeved with a connecting rod 20, so that the mounting rod 31 can simultaneously connect multiple devices 2 through the plurality of connecting holes 310.

[0053] By setting a connecting rod 20 on the device 2 and opening a plurality of connecting holes 310 on the mounting rod 31, a plurality of devices 2 in the same row or column can be connected simultaneously using one mounting rod 31, and then by fixing the mounting rod 31 on the cabinet 100, the mounting rod 31 can be used to install and fix the plurality of devices 2 at the same time, thereby improving the heat dissipation problem and improving the installation convenience.

[0054] In another embodiment of the present application, please continue to refer to Figures 4 to 6 Two of the connecting rods 20 are arranged in parallel on one side of each device 2, so that each row of devices 2 can form two rows of connecting rods 20, and each row of connecting rods 20 is correspondingly connected to a mounting rod 31, so that each row of devices 2 can be connected to the cabinet 100 through two mounting rods 31, which can improve the installation reliability of the devices 2.

[0055] In another embodiment of the present application, please refer to Figure 5 and Figure 6 The connecting rod 20 and the mounting rod 31 are both conductive rods. Both ends of the mounting rod 31 are connected with a conductive collecting plate 32 . The collecting plate 32 is fixedly installed in the cabinet 100 . The collecting plate 32 connects all the mounting rods 31 at the same time.

[0056] Each row of devices 2 is connected by a mounting rod 31, and a collecting plate 32 connects multiple rows of mounting rods 31, so that the current of multiple devices 2 can be aggregated through the collecting plate 32, so as to be suitable for application scenarios with large energy storage capacity.

[0057] In another embodiment of the present application, please refer to Figures 4 to 6The mounting assembly 3 also includes a supporting column 33 and a mounting bracket 34. The supporting column 33 is fixed in the cabinet 100. There are multiple mounting brackets 34 and mounting plates 30. Multiple devices 2 are divided into multiple groups. A group of devices 2 are all installed on a mounting plate 30. Both sides of the mounting plate 30 are connected to the mounting bracket 34. The mounting bracket 34 is fixedly connected to the supporting column 33.

[0058] Specifically, the support column 33 is a nine-fold profile formed by bending a 2mm aluminum-zinc plate, which can save the original bending process. At the same time, the support column 33 as a whole can reach a static load of 800kg, which can ensure the static load strength of the cabinet 100. At the same time, the aluminum-zinc plate has good anti-corrosion performance.

[0059] In another embodiment of the present application, please continue to refer to Figures 4 to 6 A plurality of mounting holes 330 are provided on the supporting column 33 .

[0060] The plurality of mounting holes 330 can be flexibly provided for mounting and fixing the mounting plate 30 and the mounting support plate 34 at any position. Specifically, fastening parts such as screws or bolts are used to achieve fixation. In addition, the spare mounting holes 330 can also be used as heat dissipation channels to further improve the heat dissipation performance.

[0061] In addition, the mounting hole 330 is a standard 19-inch square hole, which facilitates the standard installation of the mounting plate 30 and the mounting bracket 34 and improves the installation convenience.

[0062] In another embodiment of the present application, please refer to Figure 7 A bending plate 340 is provided on the mounting bracket 34 , and the bending plate 340 protrudes from the bottom of the mounting bracket 34 toward the direction close to the device 2 and is supported on the bottom of the device 2 .

[0063] On the one hand, the bending plate 340 can support the device 2; on the other hand, when the device 2 is installed into the cabinet 100, the bending plate 340 can also play the role of a bracket and a positioning role.

[0064] In another embodiment of the present application, four sets of pulleys 4 are installed at the bottom of the cabinet 100 to facilitate the movement of the cabinet 100 .

[0065] Exemplarily, the cabinet 100 is provided with a first cabinet door 101 and a second cabinet door 111 on both sides which are opposite to each other in front and back, the two sides vertically connected to the front and rear sides are the left and right sides, and the remaining two sides are the upper and lower sides. Seventy-two devices 2 are arranged in the cabinet 100, each device 2 is a super capacitor, thereby forming a super capacitor (a high power consumption device 2), and every four super capacitors are arranged in a row, for a total of eighteen rows. Every three rows of super capacitors are divided into a group, that is, each group of twelve super capacitors, for a total of six groups. Two connecting rods 20 are arranged on one side of each super capacitor, and the two connecting rods 20 are arranged side by side up and down, so that each row of super capacitors is connected to two mounting rods 31, and one end of each mounting rod 31 is bent to form a mounting portion, and the mounting portion can be fitted to the collection plate 32 and fixed to the collection plate 32 by bolts. There are two collection plates 32, and the two collection plates 32 are respectively fixed on the left and right sides of the cabinet 100. The two mounting rods 31 corresponding to each row of super capacitors are arranged in opposite directions, that is, the mounting portion of one mounting rod 31 is fixed to the right collecting plate 32, and the mounting portion of the other mounting rod 31 is fixed to the left collecting plate 32. The other side of each super capacitor is fixed to the mounting plate 30, and each group of super capacitors is mounted on one mounting plate 30.

[0066] There are four support columns 33, which are distributed in pairs on the left and right sides of the cabinet 100. To ensure the static load performance of the support columns 33, two support columns 33 on each side are provided with transverse support plates, so that the four support columns 33 and the transverse support plates constitute a stable support installation structure in the cabinet 100. Among them, the transverse support plate is formed by bending a 1.5 mm aluminum-zinc plate, and a hook and a mounting hole 330 are provided on the support plate, and the setting of the hook can facilitate single-person operation.

[0067] Each set of super capacitors is provided with a mounting bracket 34 on both sides, and the mounting brackets 34 are mounted on two supporting columns 33 on the same side. The bending plates 340 on the two mounting brackets 34 are arranged opposite to each other, that is, the bending plates 340 are bent and extended toward the super capacitors (away from the supporting columns 33), so that the bending plates 340 on both sides play a role in supporting and positioning the super capacitors.

[0068] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A secondary protection screen cabinet, characterized in that: The cabinet comprises a cabinet body, cabinet doors are arranged on two opposite sides of the cabinet body, heat dissipation areas are arranged on the cabinet doors on the two opposite sides, and a plurality of heat dissipation holes are opened on the heat dissipation areas, and the shapes of the plurality of heat dissipation holes are all hexagonal.

2. The secondary protection screen cabinet according to claim 1, characterized in that: The total area of ​​the heat dissipation holes in each heat dissipation zone accounts for 93% of the area of ​​the heat dissipation zone.

3. The secondary protection screen cabinet according to claim 1 or 2, characterized in that: A plurality of the heat dissipation holes are arranged at intervals, and two adjacent heat dissipation holes face each other at their sides.

4. The secondary protection screen cabinet according to claim 3, characterized in that: The center points of two adjacent heat dissipation holes are staggered, and the heat dissipation hole is on the same line as the center point of the second heat dissipation hole adjacent to it.

5. The secondary protection screen cabinet according to claim 3, characterized in that: The distance between two adjacent heat dissipation holes is 0.8mm-1.2mm, and the area of ​​a single heat dissipation hole is 20mm. 2 -22mm 2 .

6. The secondary protection screen cabinet according to claim 1, characterized in that: A plurality of devices and mounting components are arranged in the cabinet, and the plurality of devices are arranged in an array in the cabinet; the mounting component comprises a mounting plate and a mounting rod, the mounting plate is fixed to the cabinet and to one side of the device, and the mounting rod is fixed to the cabinet and to the other side of the device.

7. The secondary protection screen cabinet according to claim 6, characterized in that: Each of the devices is provided with a connecting rod; a plurality of connecting holes are provided on the mounting rod, and each of the connecting holes can be correspondingly sleeved with a connecting rod, so that the mounting rod can simultaneously connect a plurality of the devices through the plurality of connecting holes.

8. The secondary protection screen cabinet according to claim 6 or 7, characterized in that: The installation assembly also includes a supporting column and a mounting tray, the supporting column is fixed in the cabinet, and a plurality of mounting trays and mounting plates are provided. The plurality of devices are divided into a plurality of groups, and a group of devices are all installed on one mounting plate. Both sides of the mounting plate are connected to the mounting tray, and the mounting tray is fixedly connected to the supporting column.

9. The secondary protection screen cabinet according to claim 8, characterized in that: The mounting bracket is provided with a bending plate, and the bending plate protrudes from the bottom of the mounting bracket toward the direction close to the device and is supported on the bottom of the device.

10. The secondary protection screen cabinet according to claim 8, characterized in that: The supporting column is provided with a plurality of mounting holes.

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