CN209046536U - A kind of mobile AC turns direct current three-level electronic box - Google Patents
A kind of mobile AC turns direct current three-level electronic box Download PDFInfo
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- CN209046536U CN209046536U CN201821746436.5U CN201821746436U CN209046536U CN 209046536 U CN209046536 U CN 209046536U CN 201821746436 U CN201821746436 U CN 201821746436U CN 209046536 U CN209046536 U CN 209046536U
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Abstract
The utility model provides a kind of mobile AC and turns direct current three-level electronic box, which turns the electronic box shell that direct current three-level electronic box includes cabinet and setting side outside the enclosure, and the top of the electronic box shell is equipped with an electronic box handle, and is equipped with support leg in its bottom；For electronic box shell by hinge page equipped with an electric door, electric door is equipped with Electric chest lock；220AC-24DC conversion module is installed in the cabinet; 220AC-24DC conversion module includes 220AC-24DC AC/DC power, air switch and earth leakage protective device, and 220AC-24DC AC/DC power, air switch and earth leakage protective device are installed on the multiple installation card slots formed on box house backboard.
Description
Technical field
The utility model relates to a kind of mobile ACs to turn direct current three-level electronic box, suitable for by the friendship of second level electronic box in tunnel
Galvanic electricity is drawn, and is converted into the low-voltage DC that suitable tunnel illumination uses, convenient and reliable, improves the safety of tunnel illumination
Property, recycling can reduce illumination cost, be suitable for a variety of vcehicular tunnels, shield tunnel, deep big foundation pit construction illumination.
Background technique
In vcehicular tunnel, shield tunnel, deep big foundation pit work progress, when night and the construction of illumination deficiency, often need
Carry out necessary floor light, however the closing narrow space construction usage floor light such as tunnel or underground engineering exist with
Lower problem: working space is narrow, cable cracky, rich groundwater, the moist easily electric shock in underground, in such environment, construction illumination
Safety it is most important.In recent years, because electric shock accidents caused by the damage of construction illumination facility emerges one after another.Therefore design one
Money can be used for the lighting system of tunnel and underground space utilization, and there are necessity for security.
Conventional tunnel and underground space construction illumination mainly use two ways: 220V light conduits is 1. laid in tunnel,
By 220V energy-saving lamp string on cable, directly use, such construction illumination mode in the tall and big tunnel in drying, inner space or
It is relatively conventional in foundation pit, the disadvantage is that: tunnel internal should be dried anhydrous, and cable and lamps and lanterns should keep certain peace apart from human body
Full distance, electric consumption on lighting safety are slightly worse.2. low-voltage lighting cable is directly laid in tunnel, by low-pressure energy-saving lamp string in low tension
On cable, the construction illumination brightness is lower, and the power that electric energy is lost on cable during long distance delivery is larger.
Utility model content
The utility model overcomes the shortcomings that two kinds of construction illuminations of above method, turns direct current three-level electronic box using mobile AC
The configuration of string low voltage bulb, is directly connected in the second level electronic box of tunnel 220V power cable or foundation pit, turns direct current by exchange
220V AC conversion is low-voltage lighting electricity consumption by three-level electronic box, and low-voltage lighting cable, low-voltage lighting are drawn from three-level electronic box
Lamps and lanterns take electric, luminous from low-voltage lighting cable.
To achieve the goals above, the utility model uses following technical scheme, specific as follows:
A kind of mobile AC turns direct current three-level electronic box, which turns direct current three-level electronic box and include cabinet and set
The electronic box shell of side outside the enclosure is set, the top of the electronic box shell is equipped with an electronic box handle, and is equipped with support leg in its bottom；
For electronic box shell by hinge page equipped with an electric door, electric door is equipped with Electric chest lock；220AC-24DC conversion is installed in the cabinet
Module, 220AC-24DC conversion module include 220AC-24DC AC/DC power, air switch and earth leakage protective device,
220AC-24DC AC/DC power, air switch and earth leakage protective device are installed in the multiple peaces formed on box house backboard
It is loaded on slot, the input terminal of 220AC-24DC AC/DC power is sequentially connected in series air switch and leakage by firewire and zero curve
Non-electricity protector, ground wire are welded on the shell, are inputted so as to form for the firewire of incoming tunnel or the 220V cable of deep big foundation pit
The output terminal of terminal, ground wire input terminal and zero curve input terminal, the 220AC-24DC AC/DC power includes
Positive terminal and negative terminal, the positive terminal connect low-voltage lighting by connecting terminal block with negative terminal.
Preferably, Electric chest lock is that metal latch core ribbon moves rotating latch structure, pass through screw thread circumferential outside lock core, collocation lock
Tight nut, links together with electric door.
Preferably, the installation card slot is that U-shaped installs card slot, which is isolation material, is fixed by screw in case
On internal portion backboard.
Preferably, the connecting terminal block is fixed by screw inside the electronic box on backboard.
Preferably, the electronic box shell is welded by sheet metal folding.
The utility model provides a kind of conveniently moving, and safe and reliable exchange turns direct current three-level electronic box, draws from 220V cable
Enter electric energy, is converted into the extraction of low-voltage lighting electricity, is used for tunnel or foundation pit low-voltage lighting.
The technical solution of the utility model is: using AC/DC power module in three-level electronic box by 220V alternating current direct
Switch through and turn to low-voltage DC, and the ancillary equipments such as air switch, earth leakage protective device, conducting wire, line bank reality is set in electronic box
The now power supply connecting and disconnecting of electronic box, electrocution-proof protection function, direct current extraction etc..Wherein, air switch is mainly as electric current
Overload protection, system power supply opening and closing, emergency switchgear of the earth leakage protective device mainly as personnel's protection against electric shock.
Detailed description of the invention
Fig. 1 is that mobile AC turns direct current three-level electronic box mounted inside front view；
Fig. 2 is that mobile AC turns direct current three-level electronic box shell front view；
Fig. 3 is that mobile AC turns direct current three-level electronic box shell side view；
Fig. 4 is that mobile AC turns direct current three-level electronic box shell top view；
Fig. 5 turns the access of direct current three-level electronic box for mobile AC and uses figure.
Specific embodiment
As shown in figures 1-4, a kind of mobile AC turns direct current three-level electronic box, which turns direct current three-level electronic box
Electronic box shell 2 including cabinet and setting side outside the enclosure, the top of the electronic box shell 2 are equipped with an electronic box handle 1, and
Its bottom is equipped with support leg 3；For electronic box shell by hinge page equipped with an electric door 4, electric door is equipped with Electric chest lock 5；In this implementation
In example, the electronic box handle 1 is that sheet metal folds, by welding together with electronic box cage connection；Outside the electronic box
Shell 2 is that sheet metal folding is welded；Electronic box support leg 3 be sheet metal folding be welded, by welding with electronic box outside
Shell links together；Electric door 4 is that sheet metal folding is welded, through hinge page together with electronic box cage connection；
Electric chest lock 5 is that metal latch core ribbon moves rotating latch structure, passes through screw thread circumferential outside lock core, locking nut of arranging in pairs or groups, with electric door
4 link together.
220AC-24DC conversion module is installed in the cabinet, 220AC-24DC conversion module includes 220AC-24DC exchange
DC power 7, air open 9 passes and earth leakage protective device 10,220AC-24DC AC/DC power 7, air switch 9 and leakage
Non-electricity protector 10 is installed on the multiple installation card slots 6 formed on box house backboard, 220AC-24DC AC/DC power
Input terminal air switch and earth leakage protective device are sequentially connected in series by firewire and zero curve 11, ground wire 12 weld on the shell, with
This forms the firewire input terminal of the 220V cable for incoming tunnel or deep big foundation pit, ground wire input terminal and zero curve input
Terminal, the output terminal of the 220AC-24DC AC/DC power include positive terminal and negative terminal, the positive terminal
Son and negative terminal pass through the connection low-voltage lighting of connecting terminal block 8.
In the present invention, 220AC-24DC conversion module includes that the 220AC-24DC exchange being sequentially connected in series turns direct current
Source 7, air switch 9 and earth leakage protective device 10；220AC-24DC AC/DC power 7, air switch 9 and earth leakage protective device 10
It is installed on the multiple installation card slots 6 formed on box house backboard.
Illustratively, the installation card slot is that U-shaped installs card slot 6, which is isolation material, is fixed by screw in case
On internal portion backboard.
The connecting terminal block connecting terminal block 8 is the composition such as insulator, conducting wire, binding post, is fixed by screw in electricity
Inside case on backboard.AC/DC power 7 is 220V- low voltage converter, and air switch 9 is engineering plastics shell, passes through U-shaped
Installation card slot is fixed on inside electronic box on backboard, provides overcurrent protection for electronic box.Earth leakage protective device 10 is engineering plastic casing
Body is installed card slot by U-shaped and is fixed on inside electronic box on backboard, provides unexpected earth leakage protective for electronic box.Firewire and zero curve are exhausted
Edge wraps in vitro, in electronic box inner part connection circuit.Ground wire input terminal 12 is metal material stud, by being welded to connect in electronic box
On.
As shown in figure 5, mobile AC provided by the utility model turns direct current three-level electronic box work step are as follows: by three-level electricity
The incoming end firewire L of case, zero curve N, ground line PE are linked into tunnel 220V cable, with conducting wire by the anode in three-level electronic box+,
Cathode-extraction, by low-voltage lighting lamps and lanterns parallel connection access positive and negative anodes lead-out wire on, after access, be closed electronic box in air switch,
Earth leakage protective device periodically checks illuminator working condition.When needing to remove low-voltage lighting lamps and lanterns, should first disconnect air switch,
Earth leakage protective device disconnects electronic box and accesses 220V cable point, is moved to after next construction area row again and accesses and debug.
The innovative point of the utility model: utilizing 220V- low-voltage alternating-current DC power module, passes through the other auxiliary of setting
Equipment can directly take electricity from second level electronic box or tunnel cable, and draw low-voltage lighting cable, convenient for making for low-voltage lighting lamps and lanterns
With the utility model with low-voltage lighting lamps and lanterns by being used cooperatively, it is ensured that the safety that tunnel, foundation pit illuminate.When certain region
After construction, after installation tunnel, foundation pit permanently illuminate, the three-level electronic box and low-voltage cable, low-voltage lighting lamps and lanterns can be moved
It moves to next construction area, accesses next second level electronic box, be recycled, while guaranteeing construction illumination safety, help
In the cost for reducing construction illumination.
The beneficial effects of the utility model are as follows: illuminating existing safety issue, design one for current tunnel, foundation pit
Kind mobile AC turns direct current three-level electronic box, can provide reliable and stable low-voltage direct mains lighting supply for tunnel, foundation pit illumination, protect
The safety of construction illumination is demonstrate,proved, while reducing the loss of lighting power in the cable, by being recycled for multiple times, helps to drop
Low construction combined lighting cost.
Claims (5)
1. a kind of mobile AC turns direct current three-level electronic box, it is characterised in that: the mobile AC turns direct current three-level electronic box and includes
Cabinet and the electronic box shell (2) of setting side outside the enclosure, the top of the electronic box shell are equipped with an electronic box handle (1), and
Its bottom is equipped with support leg (3)；For electronic box shell (2) by hinge page equipped with an electric door (4), electric door (4) is equipped with Electric chest lock
(5)；220AC-24DC conversion module is installed in the cabinet, 220AC-24DC conversion module includes that 220AC-24DC exchange turns straight
Galvanic electricity source (7), air switch (9) and earth leakage protective device (10), 220AC-24DC AC/DC power, air switch and electric leakage
Protector is installed on the multiple installation card slots (6) formed on box house backboard, 220AC-24DC AC/DC power
Input terminal is sequentially connected in series air switch and earth leakage protective device by firewire and zero curve, ground wire weld on the shell, so as to form
For the firewire input terminal of incoming tunnel or the 220V cable of deep big foundation pit, ground wire input terminal and zero curve input terminal,
The output terminal of the 220AC-24DC AC/DC power includes positive terminal and negative terminal, the positive terminal and negative
Extreme son connects low-voltage lighting by connecting terminal block (8).
2. mobile AC according to claim 1 turns direct current three-level electronic box, it is characterised in that: Electric chest lock is metal lock core
Rotating latch structure is driven, by screw thread circumferential outside lock core, locking nut of arranging in pairs or groups links together with electric door.
3. mobile AC according to claim 1 turns direct current three-level electronic box, it is characterised in that: the installation card slot is U
Shape installs card slot, which is isolation material, is fixed by screw on box house backboard.
4. mobile AC according to claim 1 turns direct current three-level electronic box, it is characterised in that: the connecting terminal block is logical
Fastened by screw is crossed inside the electronic box on backboard.
5. mobile AC according to claim 1 turns direct current three-level electronic box, it is characterised in that: the electronic box shell passes through
Sheet metal folding is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821746436.5U CN209046536U (en) | 2018-10-26 | 2018-10-26 | A kind of mobile AC turns direct current three-level electronic box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821746436.5U CN209046536U (en) | 2018-10-26 | 2018-10-26 | A kind of mobile AC turns direct current three-level electronic box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046536U true CN209046536U (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821746436.5U Active CN209046536U (en) | 2018-10-26 | 2018-10-26 | A kind of mobile AC turns direct current three-level electronic box |
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| CN (1) | CN209046536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156748A (en) * | 2021-11-15 | 2022-03-08 | 中铁电气化局集团有限公司 | Three-stage lighting distribution box |
-
2018
- 2018-10-26 CN CN201821746436.5U patent/CN209046536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156748A (en) * | 2021-11-15 | 2022-03-08 | 中铁电气化局集团有限公司 | Three-stage lighting distribution box |
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