CN203457442U - Intrinsic-safety power supply - Google Patents
Intrinsic-safety power supply Download PDFInfo
- Publication number
- CN203457442U CN203457442U CN201320391167.6U CN201320391167U CN203457442U CN 203457442 U CN203457442 U CN 203457442U CN 201320391167 U CN201320391167 U CN 201320391167U CN 203457442 U CN203457442 U CN 203457442U
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- Prior art keywords
- wiring
- shell
- intrinsic
- power supply
- safety power
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- Expired - Fee Related
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Abstract
The utility model discloses an intrinsic-safety power supply, which comprises a shell. A circuit board is arranged in the shell. The intrinsic-safety power supply is characterized in that the side edge of the shell is provided with at least one wiring corner projecting out of the shell. The wiring corner is in the shape of a triangle and the first inclined plane of the wiring corner is provided with two wiring holes. The wiring holes are internally provided with binding posts. The binding posts are connected with the circuit board. According to the technical scheme of the utility model, the square structure of a common intrinsic-safety power supply is improved, wherein two triangular wiring corners are additionally arranged. A wire is accessed to the intrinsic-safety power supply through one inclined plane of each triangular wiring corner and a fastening screw is screwed tightly onto the other inclined plane of the triangular wiring corner. The fastening screws are arranged in the shell, thus being protected by the shell. Therefore, the screws are effectively prevented from being corroded and lost. In addition, the intrinsic-safety power supply is provided with surface-mount type electrical elements, so that the size of the intrinsic-safety power supply is reduced. Therefore, the intrinsic-safety power supply is convenient to carry about.
Description
Technical field
The utility model relates to a kind of intrinsic safety electric source.
Background technology
Intrinsic safety electric source is essential safety source, belongs to Ex Electrical Equipment Used in Explosive Atmosphere.Because it be difficult for to produce electric spark, and there is the features such as heat-resisting, waterproof, be conventionally applied to colliery etc. burning things which may cause a fire disaster is controlled to strict especially region.The mode of connection of current intrinsic safety electric source is still inserted into electric wire in the binding post of tubular substantially, then screws the trip bolt on binding post sidewall, thus securing electric lines.Outside being exposed to for fixing trip bolt, easily because a variety of causes causes corrosion, loss etc., bring a lot of inconvenience to wiring and use.Along with the progress of electronic technology, various portable, hand-held electronic equipments are widely applied in colliery, how for these electronic equipments, to improve design, and it is also that the utility model is wished the problem solving that a kind of intrinsic safety electric source light, that be convenient for carrying is provided.
Summary of the invention
In order to overcome the problems referred to above, the utility model provides a kind of intrinsic safety electric source of simple in structure, good damping effect.
The technical solution of the utility model is to provide a kind of intrinsic safety electric source, it comprises shell, in described shell, be provided with circuit board, it is characterized in that: the wiring angle that at least one protrudes from described shell is set on the side of described shell, described wiring angle is triangle, on first inclined-plane at described wiring angle, be provided with two wiring holes, in described wiring hole, be provided with binding post, described binding post connects described circuit board.
Preferably, described binding post is cylindrical shape, and it comprises that described centre bore is over against described wiring hole for placing the centre bore of electric wire, and the sidewall of described binding post is provided with the screw hole running through, and described screw hole internal thread connects trip bolt.
Preferably, on second inclined-plane at described wiring angle, be provided with run through and over against the fastener hole of described trip bolt.
Preferably, two described wiring angles are set on the side of described shell.
Preferably, the whole electric component on described circuit board is SMD electric component.
Preferably, described shell is made by fire resistance PP material.
Intrinsic safety electric source of the present utility model has improved the square structure of common intrinsic safety electric source; two leg-of-mutton wiring angles have been increased; from a leg-of-mutton inclined-plane access electric wire; another inclined-plane screws trip bolt; trip bolt is arranged on enclosure; by shell, protected, can effectively avoid trip bolt corrosion and loss.In addition, the utility model is used SMD electric component, has dwindled volume, is easy to carry.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of a kind of intrinsic safety electric source of the utility model most preferred embodiment;
Fig. 2 is the cutaway view of Fig. 1.
Embodiment
Below embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of intrinsic safety electric source of the present invention comprises shell 10, and shell 10 is comprised of two parts: the lower casing 12 of hollow and upper cover 14, upper cover 14 and lower casing 12 clampings.In lower casing 12, be provided with circuit board 16, the both upper ends thereof of upper cover 14 arranges two wiring angles 18, and wiring angle 18 is triangle.On first inclined-plane at wiring angle 18, be provided with two wiring holes 20, on second inclined-plane at wiring angle 18, be provided with the fastener hole 22 running through.
As shown in Figure 2, the whole electric component 24 on circuit board 16 is SMD electric component 24, and the thickness of shell 10 is further reduced, and reduces the volume of shell 10.Relative pins type electric component 24, SMD electric component 24, cost is lower, easy for installation.
Above embodiment is only the utility model a kind of execution mode wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (6)
1. an intrinsic safety electric source, it comprises shell, in described shell, be provided with circuit board, it is characterized in that: the wiring angle that at least one protrudes from described shell is set on the side of described shell, described wiring angle is triangle, on first inclined-plane at described wiring angle, be provided with two wiring holes, in described wiring hole, be provided with binding post, described binding post connects described circuit board.
2. intrinsic safety electric source according to claim 1, it is characterized in that: described binding post is cylindrical shape, it comprises that described centre bore is over against described wiring hole for placing the centre bore of electric wire, the sidewall of described binding post is provided with the screw hole running through, and described screw hole internal thread connects trip bolt.
3. intrinsic safety electric source according to claim 2, is characterized in that: on second inclined-plane at described wiring angle, be provided with run through and over against the fastener hole of described trip bolt.
4. the intrinsic safety electric source described in one of them according to claim 1-3, is characterized in that: two described wiring angles are set on the side of described shell.
5. intrinsic safety electric source according to claim 4, is characterized in that: the whole electric component on described circuit board is SMD electric component.
6. intrinsic safety electric source according to claim 5, is characterized in that: described shell is made by fire resistance PP material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391167.6U CN203457442U (en) | 2013-07-03 | 2013-07-03 | Intrinsic-safety power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391167.6U CN203457442U (en) | 2013-07-03 | 2013-07-03 | Intrinsic-safety power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203457442U true CN203457442U (en) | 2014-02-26 |
Family
ID=50137282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320391167.6U Expired - Fee Related CN203457442U (en) | 2013-07-03 | 2013-07-03 | Intrinsic-safety power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203457442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417281A (en) * | 2019-07-05 | 2019-11-05 | 深圳市钰龙科技有限公司 | A kind of sinewave inverter charge power supply |
-
2013
- 2013-07-03 CN CN201320391167.6U patent/CN203457442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417281A (en) * | 2019-07-05 | 2019-11-05 | 深圳市钰龙科技有限公司 | A kind of sinewave inverter charge power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20140703 |
|
| EXPY | Termination of patent right or utility model |