Direct current screen for extreme environment

Abstract

The utility model discloses a direct current screen for an extreme environment, and relates to the technical field of direct current screens. The direct current screen comprises an outer protection box, a direct current screen body, a supporting box and a blowing assembly, supporting strips are fixed to the edges of the two short edges of the inner bottom of the outer protection box, mounting strips are arranged on the tops of the two supporting strips, the direct current screen body is fixed to the tops of the two mounting strips, the supporting box is fixed to the bottom of the outer protection box, and the blowing assembly is arranged on the supporting box. A blowing assembly is arranged on the outer side of one end of the supporting box and comprises an air inlet pipe and a corrugated pipe, one end of the supporting box fixedly communicates with the air inlet pipe, and the end, away from the supporting box, of the air inlet pipe fixedly communicates with the corrugated pipe. Through the arrangement of the outer protection box, the direct current screen main body, the supporting box and the air blowing assembly, the problems that the direct current screen is not good enough in applicability to an extreme environment, and the heat dissipation efficiency is low when the direct current screen works are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct current screens, in particular to a direct current screen for extreme environments. Background Art

[0002] The DC panel is a new type of DC system with digital control, protection, management and measurement. It is mainly used to convert AC power into DC power and provide stable DC power for various equipment in the power system. It provides DC power for the opening and closing of high-voltage switches in normal operation and accident conditions, relay protection, automatic control, switch signal indication, accident lighting, etc. After the mains power is cut off, it can provide AC emergency power supply to the load in a short time to ensure the normal operation of important equipment. It can conduct comprehensive monitoring of the DC system, including insulation monitoring, battery inspection, etc., to detect system faults in time and send out alarm signals. However, it still has the following disadvantages in actual use:

[0003] When the DC screen is working, it is directly installed on the bottom surface of the working environment room. However, in different geographical environments, the working humidity and other conditions will change. When facing extreme environments such as high humidity and high heat, it is easy to fail, affecting the stability of the DC screen.

[0004] Moreover, when the DC screen is working, it mainly works in the working room, and the indoor environment needs to be adjusted as a whole. During the working process, the heat on the surface of the DC screen is discharged into the room through natural heat dissipation, and the cooling rate of the DC screen is slow. Utility Model Content

[0005] The purpose of the utility model is to provide a DC screen for extreme environments. By arranging an external protection box, a DC screen body, a support box and a blowing assembly, the problem that the DC screen is not good enough in applicability to extreme environments and the heat dissipation efficiency is low when the DC screen is working is solved.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a DC screen for extreme environments, comprising an outer protection box, a DC screen main body, a support box and a blowing assembly, wherein support strips are fixed at the two short side edges of the inner bottom of the outer protection box, mounting strips are arranged on the tops of the two support strips, and the DC screen main body is fixed on the tops of the two mounting strips together, a support box is fixed at the bottom of the outer protection box, a blowing assembly is arranged on the outer side of one end of the support box, the blowing assembly comprises an air inlet pipe and a bellows, one end of the support box is fixedly connected with the air inlet pipe, and the end of the air inlet pipe away from the support box is fixedly connected with the bellows, when working, the DC screen main body is accommodated therein through the outer protection box, the DC screen main body is closed and protected, when the DC screen main body is working, the current transmitted stably, the air is transported to the outer protection box through the support box, the DC screen main body in the outer protection box is blown, the clean air is transported to the support box through the blowing assembly, and the air is blown to the outer protection box through the support box.

[0008] Furthermore, a door panel is hinged on the front side of the outer protection box, a transparent window is fixed through the door panel, and the front and rear sides of the transparent window are flush with the front and rear sides of the door panel respectively. The front side of the outer protection box is closed by the door panel, and the operator can observe the outer protection box through the transparent window.

[0009] Furthermore, an air outlet pipe is fixedly connected to the top rear edge of the outer protection box, a flexible sleeve is fixedly connected to the rear lower part of the outer protection box, and air holes are evenly and vertically opened at the bottom of the outer protection box between the two support bars. When the outer protection box is working, the air therein is discharged through the air outlet pipe, and the air in the support box is transported to the outer protection box through the air holes.

[0010] Furthermore, the top of the installation bar on the outside of the DC screen body is evenly spaced with plugs, and the bottom ends of the plugs pass through the installation bar and are plugged into the support bar, so that the DC screen body can be installed in the outer protective box during work.

[0011] Furthermore, the top of the support box is open, a connecting hole is provided at one end of the support box, the connecting hole corresponds to the position of the air inlet pipe and the inner diameter of the connecting hole is equal to the inner diameter of the air inlet pipe, and the support box is connected to the air inlet pipe through the connecting hole.

[0012] Furthermore, the air blowing assembly also includes an air supply pipe and an induced draft fan. The end of the bellows away from the air inlet pipe is fixedly connected to the air supply pipe, and the end of the air supply pipe away from the bellows is fixedly connected to the output end of the induced draft fan, and air is blown into the air supply pipe through the induced draft fan.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem that the DC screen is not well suited to extreme environments by providing an outer protection box and a DC screen body. When the DC screen body needs to be installed in the outer protection box, the door panel on the outer protection box is opened. After the door panel is opened, the two installation bars at the bottom of the DC screen body are placed on the support bars. After the DC screen body is set in place in the outer protection box, the latch is inserted into the installation bar and then inserted into the support bar. When working, the DC screen body is set in the outer protection box. Through the cooperation of the support bar and the installation bar, the DC screen body is stably suspended and supported in the outer protection box. After closing the door panel, the entire DC screen body is enclosed in the outer protection box, and the entire DC screen body is suspended in the outer protection box to protect the DC screen body, thereby ensuring the suitability of the DC screen to extreme environments. The DC screen has better suitability to extreme environments.

[0015] The utility model solves the problem of low heat dissipation efficiency of the DC screen when it is working by arranging an outer protection box, a DC screen main body, a support box and an air blowing component. By starting the induced draft fan, clean air is pumped into the air pipe, transported to the bellows through the air pipe, transported to the air intake pipe through the bellows, transported to the connecting hole on the support box through the air intake pipe, then enters the support box, and then transported to the air vents at the bottom of the outer protection box through the support box, and then transported to the outer protection box through the air vents, rises in the outer protection box and passes over the DC screen main body to blow away the heat on the DC screen main body, and the heat-dissipated air is output through the air outlet pipe, so that when the outer protection box is working, the DC screen main body can be easily dissipated, and the heat dissipation efficiency of the DC screen is higher when it is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A three-dimensional diagram of the assembly structure after the DC screen door panel for extreme environment is opened;

[0018] Figure 2 It is a structural stereogram of the outer protection box;

[0019] Figure 3 It is a three-dimensional diagram of the structure of the DC panel body;

[0020] Figure 4 It is a structural stereogram of the support box;

[0021] Figure 5 It is a structural stereogram of the blowing component;

[0022] Figure 6 A three-dimensional diagram of the DC panel assembly structure for extreme environments.

[0023] Reference numerals:

[0024] 1. Outer protection box; 101. Door panel; 102. Transparent window; 103. Flexible sleeve; 104. Support bar; 105. Air vent; 106. Air outlet duct; 2. DC screen body; 201. Mounting bar; 202. Latch; 3. Support box; 301. Connecting hole; 4. Air blowing assembly; 401. Air inlet pipe; 402. Bellows; 403. Air supply pipe; 404. Draft fan. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0026] See also Figure 1-3 The utility model is a DC screen for extreme environments, including an outer protection box 1, a DC screen body 2, a support box 3 and a blowing component 4. Support bars 104 are fixed to the two short edges of the bottom of the outer protection box 1. When the outer protection box 1 is working, the internal DC screen body 2 is protected. The support bars 104 provide support for the DC screen body 2 in the outer protection box 1. The tops of the two support bars 104 are both provided with mounting bars 201. The tops of the two mounting bars 201 are jointly fixed with the DC screen body 2. When the DC screen body 2 is working, it is installed on the support bars 104 through the mounting bars 201, so that the DC screen body 2 is suspended. It is supported in the outer protection box 1, and a support box 3 is fixed at the bottom of the outer protection box 1. When the support box 3 is working, the outer protection box 1 is supported thereon. A blowing component 4 is arranged on the outer side of one end of the support box 3. When the blowing component 4 is working, clean air is blown into the outer protection box 1. The blowing component 4 includes an air inlet pipe 401 and a bellows 402. One end of the support box 3 is fixedly connected with the air inlet pipe 401, and the end of the air inlet pipe 401 away from the support box 3 is fixedly connected with the bellows 402. The air inlet pipe 401 conveys the air conveyed in the bellows 402 to the support box 3, and the position of the induced draft fan 404 can be changed through the bellows 402.

[0027] Specifically, a door panel 101 is hinged on the front side of the outer protection box 1, and a transparent window 102 is fixed through the door panel 101, and the front and rear sides of the transparent window 102 are flush with the front and rear sides of the door panel 101 respectively. The front side of the outer protection box 1 is closed by the door panel 101, and information on the DC screen main body 2 in the outer protection box 1 is observed through the transparent window 102.

[0028] Furthermore, an air outlet duct 106 is fixedly connected at the top rear edge of the outer protection box 1, and a flexible sleeve 103 is fixedly connected at the rear lower part of the outer protection box 1. Air holes 105 are evenly and vertically opened at the bottom of the outer protection box 1 between the two support bars 104. The outer protection box 1 discharges the air entering therein through the air outlet duct 106. When working, the flexible sleeve 103 is used to pass the wire of the DC screen. After the wire passes through the flexible sleeve 103, it is wrapped and pasted with a sealing tape, and then the position of the flexible sleeve 103 and the DC screen wire is sealed, and the air transported in the support box 3 is transported to the outer protection box 1 through the air holes 105.

[0029] Furthermore, the top of the mounting strips 201 on the outside of the DC screen body 2 are all evenly spaced and plugged with pins 202. After the pins 202 pass through the mounting strips 201, the bottom ends are plugged into the support strips 104. After the DC screen body 2 is set in the outer protective box 1, the mounting strips 201 are passed through by the pins 202, and then the mounting strips 104 in the outer protective box 1 are screwed into the DC screen body 2, and then the DC screen body 2 is installed on the outer protective box 1.

[0030] The operation process of this embodiment is as follows: during work, when it is necessary to install the DC screen body 2 in the outer protection box 1, open the door panel 101 on the outer protection box 1. After the door panel 101 is opened, place the two installation strips 201 at the bottom of the DC screen body 2 on the support strips 104. After the DC screen body 2 is set in place in the outer protection box 1, insert the latch 202 into the installation strip 201 and insert it into the support strip 104. When working, the DC screen body 2 is set in the outer protection box 1. Through the cooperation of the support strip 104 and the installation strip 201, the DC screen body 2 is stably suspended and supported in the outer protection box 1. After closing the door panel 101, the entire DC screen body 2 is enclosed in the outer protection box 1, and the entire DC screen body 2 is suspended in the outer protection box 1 to protect the DC screen body 2. Specific embodiment 2

[0031] See also Figure 1-6On the basis of the specific embodiment 1, the top of the support box 3 is set to be open, and a connecting hole 301 is opened at one end of the support box 3. The connecting hole 301 corresponds to the position of the air inlet pipe 401 and the inner diameter of the connecting hole 301 is equal to the inner diameter of the air inlet pipe 401. When the support box 3 is working, it is connected with the air inlet pipe 401 through the connecting hole 301. The top of the support box 3 is set to be open, so that when working, the air entering therein is transported to the air vent 105.

[0032] Specifically, the air blowing component 4 also includes an air supply pipe 403 and an induced draft fan 404. The end of the bellows 402 away from the air inlet pipe 401 is fixedly connected to the air supply pipe 403, and the end of the air supply pipe 403 away from the bellows 402 is fixedly connected to the output end of the induced draft fan 404. When the induced draft fan 404 is working, the end away from the air supply pipe 403 is connected to an external device for transporting clean air. The air is transported to the air supply pipe 403 through the induced draft fan 404, transported to the bellows 402 through the air supply pipe 403, transported to the air inlet pipe 401 through the bellows 402, and transported to the support box 3 through the air inlet pipe 401.

[0033] The operation process of this embodiment is: when working, by starting the induced draft fan 404, clean air is pumped into the air pipe 403, transported to the bellows 402 through the air pipe 403, transported to the air inlet pipe 401 through the bellows 402, transported to the connecting hole 301 on the support box 3 through the air inlet pipe 401, and then enters the support box 3, and then transported to the air vent 105 at the bottom of the outer protection box 1 through the support box 3, and then transported to the outer protection box 1 through the air vent 105, rises in the outer protection box 1 and passes over the DC screen body 2 to dissipate the heat on the DC screen body 2, and the heat-dissipated air is output through the air outlet pipe 106, so that when working in the outer protection box 1, the DC screen body 2 can be easily dissipated.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A DC screen for extreme environments, comprising an outer protection box (1), a DC screen body (2), a support box (3) and a blowing assembly (4), characterized in that: Support bars (104) are fixed to the two short side edges of the inner bottom of the outer protection box (1), and mounting bars (201) are arranged on the tops of the two support bars (104). The DC screen body (2) is fixed to the tops of the two mounting bars (201). A support box (3) is fixed to the bottom of the outer protection box (1), and an air blowing assembly (4) is arranged on the outer side of one end of the support box (3). The air blowing assembly (4) comprises an air inlet pipe (401) and a bellows (402). One end of the support box (3) is fixedly connected to the air inlet pipe (401), and one end of the air inlet pipe (401) away from the support box (3) is fixedly connected to the bellows (402).

2. A DC panel for extreme environments according to claim 1, characterized in that: A door panel (101) is hingedly connected to the front side of the outer protection box (1), a transparent window (102) is fixedly passed through the door panel (101), and the front and rear sides of the transparent window (102) are respectively flush with the front and rear sides of the door panel (101).

3. The DC panel for extreme environment according to claim 1, characterized in that: An air outlet duct (106) is fixedly connected to the rear edge of the top of the outer protection box (1), a flexible sleeve (103) is fixedly connected to the lower rear portion of the outer protection box (1), and air holes (105) are evenly and vertically opened at the bottom of the outer protection box (1) between the two support bars (104).

4. The DC panel for extreme environment according to claim 1, characterized in that: The top of the installation strip (201) outside the DC screen body (2) is evenly spaced and plugged with plug pins (202), and the bottom ends of the plug pins (202) are plugged into the support strip (104) after passing through the installation strip (201).

5. The DC panel for extreme environment according to claim 1, characterized in that: The top of the support box (3) is open, and a connecting hole (301) is provided at one end of the support box (3). The connecting hole (301) corresponds to the position of the air intake pipe (401), and the inner diameter of the connecting hole (301) is equal to the inner diameter of the air intake pipe (401).

6. The DC panel for extreme environments according to claim 1, characterized in that: The air blowing assembly (4) further comprises an air delivery pipe (403) and an induced draft fan (404); one end of the bellows (402) away from the air inlet pipe (401) is fixedly connected to the air delivery pipe (403); and one end of the air delivery pipe (403) away from the bellows (402) is fixedly connected to an output end of the induced draft fan (404).

Images