CN103378576A - New junction box for intrinsically safe circuit - Google Patents
New junction box for intrinsically safe circuit Download PDFInfo
- Publication number
- CN103378576A CN103378576A CN 201210108665 CN201210108665A CN103378576A CN 103378576 A CN103378576 A CN 103378576A CN 201210108665 CN201210108665 CN 201210108665 CN 201210108665 A CN201210108665 A CN 201210108665A CN 103378576 A CN103378576 A CN 103378576A
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- China
- Prior art keywords
- junction box
- terminal box
- intrinsically safe
- circuit board
- safe circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a junction box, more specifically to a junction box which is suitable for methane gas and coal-dust explosion environment in a coal mine underground and is used for connection with a cable and a sub-line of an intrinsically safe circuit between electrical devices. The junction box has a square box body and includes a junction box 1 and a junction box cover 2. A plurality of line-through ports 3 are disposed on a side wall of the junction box 1; a circuit board 4 is fixed on the inner bottom of the junction box 1; the circuit board 4 is provided with a plurality of binding posts 5; a wiring hole 6 is disposed in each binding post 5; and each wiring hole 6 is connected through copper foil. The junction box is easy to use, and has a simple structure, excellent fatigue resistance and impact resistance, and better sealing and dustproof effects. A horn mouth insert is provided with embossing process, and forms a certain friction and engaging force with the box body after being molded, so that the insert can be fixed inside without falling off and the problem that the insert rotates with the cable can be effectively solved.
Description
Technical field
The present invention relates to a kind of terminal box, a kind of environment that is applicable to coal mine gas and coal-dust explosion more precisely between electric equipment, connects the terminal box of usefulness of cable connection, the separated time of essential safe type circuit.
Background technology
Integrated Automation System of Coal-mine is to use modern electronic technology and automatic technology Mine Production is realized the system of overall monitor, and the engineering circuit wiring is the important step in the complex automatic system, and terminal box is the core of cable connection, separated time.Because people's use habit and technique, conventional electrical connectors has many deficiencies but one seat is still arranged in market.Generally intrinsic safety terminal box build is clumsy, and the inserts of cable accessing port directly embeds, and rotatable cable can cause inserts to follow the cable rotation when usually using, and dependence tongue and groove interlock between lid and the box body, and box is experienced and made easily the distortion of box body after brute force is pushed.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, a kind of novel terminal box that is applicable to mine intrinsic safety cable connection, separated time is provided.
The present invention is for achieving the above object, and the technical scheme that adopts is: a kind of novel intrinsically safe circuit terminal box, and it is a square box body, comprises terminal box and connector cover, the sidewall of described terminal box is provided with some logical line mouths; Inner below is fixed with circuit board; Described circuit board is provided with some binding posts, and each binding post is provided with wiring hole, and each wiring hole is connected by Copper Foil respectively.
Be equipped with bolt hole on four angles of described terminal box and connector cover, and be to be bolted.
Described logical line mouth is three, and built-in loudspeaker nozzle inserts.
Described circuit board is the inside that is bolted on terminal box.
Described binding post is three, and each binding post is provided with four wiring holes.
Beneficial effect of the present invention is: a kind of novel intrinsically safe circuit that proposes is compared with original terminal box with terminal box, has fatigue durability and impact resistance simple in structure, easy to use, excellent, and sealing, dust-proof effect are better; The loudspeaker nozzle inserts has embossed technology, forms certain frictional force and stings and power with box body after the moulding, and can make it be fixed on the inside can not come off, and can effectively solve inserts and follow the problem that cable rotates.
Description of drawings
The present invention is further elaborated below in conjunction with accompanying drawing;
Accompanying drawing 1 is front view of the present invention;
Accompanying drawing 2 is circuit board schematic diagram of the present invention;
1. terminal boxes, 2. connector covers, 3. logical line mouth 4. circuit boards 5. binding posts 6. wiring holes 7, bolt hole among the figure.
Embodiment
A kind of novel intrinsically safe circuit terminal box as shown in Figure 1 and Figure 2, it is a square box body, comprises terminal box 1 and connector cover 2, the sidewall of described terminal box 1 is provided with some logical line mouths 3; Inner below is fixed with circuit board 4; Described circuit board 4 is provided with some binding posts 5, and each binding post 5 is provided with wiring hole 6, and each wiring hole 6 is connected by Copper Foil respectively.
When this terminal box is used, open first connector cover 2, line is passed logical line mouth 3, then the line that will connect is connected with wiring hole 6 on the corresponding binding post 5 and fixes, because each wiring hole 6 links to each other by Copper Foil, thus just do not need the line pressure that will connect together, as long as be connected on the corresponding wiring hole 6, the connector cover 2 that closes at last, and with bolt connector cover 2 is fixed.It is simple in structure, easy to use.
Claims (5)
1. novel intrinsically safe circuit terminal box, it is a square box body, comprises terminal box (1) and connector cover (2), it is characterized in that: the sidewall of described terminal box (1) is provided with some logical line mouths (3); Inner below is fixed with circuit board (4); Described circuit board (4) is provided with some binding posts (5), and each binding post (5) is provided with wiring hole (6), and each wiring hole (6) is connected by Copper Foil respectively.
2. by a kind of novel intrinsically safe circuit terminal box claimed in claim 1, it is characterized in that: be equipped with bolt hole (7) on four angles of described terminal box (1) and connector cover (2), and be to be bolted.
3. by a kind of novel intrinsically safe circuit terminal box claimed in claim 1, it is characterized in that: described logical line mouth (3) is three, and built-in loudspeaker nozzle inserts.
4. by a kind of novel intrinsically safe circuit terminal box claimed in claim 1, it is characterized in that: described circuit board (4) is the inside that is bolted on terminal box (1).
5. by a kind of novel intrinsically safe circuit terminal box claimed in claim 1, it is characterized in that: described binding post (5) is three, and each binding post (5) is provided with four wiring holes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210108665 CN103378576A (en) | 2012-04-15 | 2012-04-15 | New junction box for intrinsically safe circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210108665 CN103378576A (en) | 2012-04-15 | 2012-04-15 | New junction box for intrinsically safe circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103378576A true CN103378576A (en) | 2013-10-30 |
Family
ID=49463318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210108665 Pending CN103378576A (en) | 2012-04-15 | 2012-04-15 | New junction box for intrinsically safe circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103378576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337060A (en) * | 2015-11-28 | 2016-02-17 | 张岩 | Branch waterproof junction box for subway interval illumination |
| CN112993663A (en) * | 2021-03-18 | 2021-06-18 | 辽宁工程技术大学 | But mining ann's terminal box of high-speed joint |
-
2012
- 2012-04-15 CN CN 201210108665 patent/CN103378576A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337060A (en) * | 2015-11-28 | 2016-02-17 | 张岩 | Branch waterproof junction box for subway interval illumination |
| CN112993663A (en) * | 2021-03-18 | 2021-06-18 | 辽宁工程技术大学 | But mining ann's terminal box of high-speed joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |