CN219999875U - Optical fiber differential protection device - Google Patents
Optical fiber differential protection device Download PDFInfo
- Publication number
- CN219999875U CN219999875U CN202321239758.1U CN202321239758U CN219999875U CN 219999875 U CN219999875 U CN 219999875U CN 202321239758 U CN202321239758 U CN 202321239758U CN 219999875 U CN219999875 U CN 219999875U
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- China
- Prior art keywords
- optical fiber
- outer protective
- protection device
- fixedly connected
- differential protection
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 62
- 230000001681 protective effect Effects 0.000 claims abstract description 95
- 230000017525 heat dissipation Effects 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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Abstract
The utility model discloses an optical fiber differential protection device, which relates to the technical field of protection equipment and comprises an outer protection shell, wherein a plurality of fixing blocks are arranged in the outer protection shell, a heat dissipation space is formed by the inner surface of the outer protection shell and the surfaces of the fixing blocks, air inlet cylinders are fixedly connected to the two sides of the upper end of the outer protection shell, the middle part of each air inlet cylinder is communicated with the heat dissipation space, a dust-proof plate is fixedly connected to one end, far away from the outer protection shell, of each air inlet cylinder, a fixing frame is fixedly connected to the inner part of each air inlet cylinder, and a motor is fixedly connected to the lower end of each fixing frame. According to the utility model, the fixing block and the outer protective shell form a heat dissipation space in the middle of the outer protective shell, and the fan blades are driven to rotate by the two groups of motors, so that air enters the heat dissipation space along the air inlet cylinder, flows downwards along the heat dissipation space and flows out of through holes at two sides of the lower end of the outer protective shell, thereby taking out heat in the middle of the outer protective shell and achieving the heat dissipation effect.
Description
Technical Field
The utility model relates to the technical field of protection equipment, in particular to an optical fiber differential protection device.
Background
The optical fiber differential protection adopts a split-phase current differential element as a rapid main protection and adopts PCM optical fiber or optical cable as a channel, so that the action speed is faster, and the optical fiber differential protection is the main protection of a short circuit.
The disclosed patent: an optical fiber differential protection device (publication number: CN 212781394U), a support component and an anti-falling component, wherein the support component comprises a first shell, a split-phase current differential element, a first optical cable, a connector and a display screen, the split-phase current differential element is fixed on the inner wall of the first shell, when the optical fiber differential protection device is used, a second optical cable penetrates through a second support plate and the second shell, the second shell is installed on the first shell by using a locking piece, a plug is pressed by the second support plate under the reaction force of a spring, a threaded rod is rotated again, the extrusion plate moves forwards under the action of the threaded rod and a second sliding block, the second optical cable is pressed and fixed by the extrusion plate, and the situation that the plug falls off from the connector is effectively prevented; the above-mentioned patent has the following defects that the split-phase current differential element is protected by the first shell, the first shell has no radiating structure, the split-phase current differential element can generate heat for a long time, the service life of the split-phase current differential element can be damaged by long-time high heat, the split-phase current differential element is fixed in the first shell, the split-phase current differential element is inconvenient to detach, and the split-phase current differential element is inconvenient to maintain.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an optical fiber differential protection device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an optic fibre differential protection device, includes the outer protective housing, the inside fixed block that is provided with of outer protective housing, outer protective housing internal surface and fixed block surface constitute the heat dissipation space, the equal fixedly connected with inlet tube in outer protective housing upper end both sides, and inlet tube middle part and heat dissipation space are linked together, the one end fixedly connected with dust guard of outer protective housing is kept away from to the inlet tube, the inside fixedly connected with mount of inlet tube, mount lower extreme fixedly connected with motor, motor output fixedly connected with flabellum, outer protective housing lower extreme both sides are provided with the through-hole, and through-hole middle part fixedly connected with dust guard, and two sets of mount output direction are relative, all face outer protective housing middle part.
As a further description of the above technical solution:
two fixing plates are fixedly connected to two ends of the outer protective shell respectively, threads are slidably connected to the middle of each fixing plate, bolts penetrate through the fixing plates to be fixed to appointed installation sites, and the fixing plates and the outer protective shell are fixed to the appointed sites through the bolts, so that the outer protective shell is convenient to use.
As a further description of the above technical solution:
the optical fiber differential protection device is characterized in that the middle of the outer protective shell is connected with the optical fiber differential protection device in a sliding manner, a display screen is arranged at the upper end of the optical fiber differential protection device, springs are arranged inside two sides of the lower end of the optical fiber differential protection device, one end of each spring is fixedly connected with a wire column, the wire columns are connected inside the optical fiber differential protection device and the fixing blocks in a sliding manner, one side, close to the protective cover, of one group of the fixing blocks located at the lower end of the outer protective shell is uniformly provided with two groups of inclined planes, the inclined planes coincide with the lower end of the wire column, one end, close to the spring, of each wire column is connected with electronic devices inside the optical fiber differential protection device through wires, and when the optical fiber differential protection device is inserted into the middle of the outer protective shell, the inclined planes can squeeze the wire columns, so that the wire columns are pushed into the optical fiber differential protection device, and when the wire columns move to the right above the binding posts, the wire columns are pushed into the middle of the fixing blocks to be contacted with the binding posts.
As a further description of the above technical solution:
the wire post is close to the one end fixed surface of spring and is connected with the stopper, and stopper all sliding connection is inside differential protection device of optic fibre, avoids the wire post to follow the differential protection device middle part roll-off of optic fibre through the stopper.
As a further description of the above technical solution:
the outer protective housing lower extreme surface evenly fixedly connected with two sets of fixed barrels, fixed barrel middle part upper end sliding connection has the terminal, the terminal upper end passes outer protective housing lateral wall, and terminal and wire post cross-section coincidence, fixed barrel lower extreme threaded connection has the gim peg, and external wire inserts inside the fixed barrel, meets with the terminal, can fix external wire at fixed barrel middle part through the gim peg.
As a further description of the above technical solution:
the optical fiber differential protection device comprises a fixing block, an outer protective shell, a plurality of limiting sliding blocks, a plurality of fixing blocks and a plurality of fixing blocks.
As a further description of the above technical solution:
one side of the outer protective shell is hinged with a protective cover through two combined pages, the middle part of one end of the protective cover, which is far away from the hinge, is connected with the outer protective shell through a buckle, the upper end of the protective cover is provided with an observation window, the observation window is opposite to the display screen, the optical fiber differential protection device can be fixed in the middle part of the outer protective shell through the protective cover, and data displayed by the display screen can be seen through the observation window.
The utility model has the following beneficial effects:
1. according to the utility model, the fixing block and the outer protective shell form a heat dissipation space in the middle of the outer protective shell, and the fan blades are driven to rotate by the two groups of motors, so that air enters the heat dissipation space along the air inlet cylinder, flows downwards along the heat dissipation space and flows out of through holes at two sides of the lower end of the outer protective shell, thereby taking out heat in the middle of the outer protective shell and achieving the heat dissipation effect.
2. When the optical fiber differential protection device is placed in the middle of the outer protection shell, the inclined plane can extrude the wire post, so that the wire post is pushed into the optical fiber differential protection device, when the wire post moves to the position right above the binding post, the spring pushes the wire post to be inserted into the middle of the fixed block to be contacted with the binding post, the protection cover is opened to expose the optical fiber differential protection device, the binding post is pushed from the lower end of the fixed cylinder by using a tool, the binding post is pushed upwards, so that the wire post is pushed out of the fixed block, and then the optical fiber differential protection device can be taken out from the middle of the outer protection shell, so that the optical fiber differential protection device can be separated from the outer protection shell, and the optical fiber differential protection device is convenient to maintain.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of the outer protection and fiber differential protection device of the present utility model;
FIG. 3 is a schematic cross-sectional perspective view of the differential protection device of the present utility model;
fig. 4 is a sectional perspective structure view of the outer protective case of the present utility model.
Legend description:
1. an outer protective shell; 2. a fixing plate; 3. a protective cover; 4. an air inlet cylinder; 5. a dust-proof plate; 6. a fixed block; 7. an optical fiber differential protection device; 8. a limit sliding block; 9. a display screen; 10. a spring; 11. a wire post; 12. a fixed cylinder; 13. binding posts; 14. a fixing bolt; 15. a fixing frame; 16. a motor; 17. and (3) a fan blade.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides an optic fibre differential protection device, including outer protective housing 1, outer protective housing 1 inside is provided with a plurality of fixed blocks 6, outer protective housing 1 internal surface and fixed block 6 surface constitution heat dissipation space, outer protective housing 1 upper end both sides all fixedly connected with air inlet section of thick bamboo 4, and air inlet section of thick bamboo 4 middle part is linked together with heat dissipation space, the one end fixedly connected with dust guard 5 of outer protective housing 1 is kept away from to air inlet section of thick bamboo 4, the inside fixedly connected with mount 15 of air inlet section of thick bamboo 4, mount 15 lower extreme fixedly connected with motor 16, motor 16 output fixedly connected with flabellum 17, outer protective housing 1 lower extreme both sides are provided with the through-hole, and through-hole middle part fixedly connected with dust guard 5, two sets of mount 15 output end directions are relative, all towards outer protective housing 1 middle part, fixed block 6 and outer protective housing 1 constitute a heat dissipation space in outer protective housing 1 middle part, drive flabellum 17 through two sets of motors 16 and rotate, make the air enter into the heat dissipation space along air inlet section of thick bamboo 4, flow downwards along the heat dissipation space, the through-hole of outer protective housing 1 lower extreme both sides, thereby take out the heat at outer protective housing 1 middle part, the effect, thereby increase optic fibre differential protection device 7's life.
One side of the outer protective shell 1 is hinged with a protective cover 3 through two combined pages, the middle part of one end of the protective cover 3 far away from a hinge is connected with the outer protective shell 1 through a buckle, the upper end of the protective cover 3 is provided with an observation window, the observation window is opposite to a display screen 9, an optical fiber differential protective device 7 can be fixed in the middle of the outer protective shell 1 through the protective cover 3, data displayed by the display screen 9 can be seen through the observation window, two groups of fixed barrels 12 are uniformly and fixedly connected on the outer surface of the lower end of the outer protective shell 1, a binding post 13 is slidably connected with the upper end of the middle of the fixed barrel 12, the upper end of the binding post 13 penetrates through the side wall of the outer protective shell 1, the cross sections of the binding post 13 and a wire post 11 are overlapped, the lower end of the fixed barrel 12 is in threaded connection with a fixing bolt 14, an external wire is inserted into the fixed barrel 12 and is connected with the binding post 13, the external wire can be fixed in the middle of the fixed barrel 12 through the fixing bolt 14, the middle part of the outer protective shell 1 is slidably connected with an optical fiber differential protection device 7, the side surface of the optical fiber differential protection device 7 is fixedly connected with a plurality of limit sliding blocks 8, the limit sliding blocks 8 are slidably connected inside the fixed blocks 6, the device slides in the middle part of the outer protective shell 1 through the limit sliding blocks 8, the optical fiber differential protection device 7 is clamped in the middle part of the outer protective shell 1 through the limit sliding blocks 8, the upper end of the optical fiber differential protection device 7 is provided with a display screen 9, springs 10 are arranged inside two sides of the lower end of the optical fiber differential protection device 7, one end of each spring 10 is fixedly connected with a wire column 11, the wire column 11 is slidably connected inside the optical fiber differential protection device 7 and the fixed blocks 6, one side of a group of fixed blocks 6 which is positioned at the lower end of the outer protective shell 1 and is close to the protective cover 3 is uniformly provided with two groups of inclined surfaces, the inclined surfaces are overlapped with the lower end of the wire column 11, one end surface of the wire column 11 which is close to the springs 10 is fixedly connected with a limiting block, and the stopper all sliding connection is inside optic fibre differential protection device 7, avoid wire post 11 to slide out from optic fibre differential protection device 7 middle part through the stopper, wire post 11 is close to the one end of spring 10 and is linked to each other through wire and the inside electronic device of optic fibre differential protection device 7, when optic fibre differential protection device 7 inserts outer protective housing 1 middle part, the inclined plane can extrude wire post 11, thereby advance inside optic fibre differential protection device 7 with wire post 11, when wire post 11 moves to terminal 13 directly over, spring 10 promotes wire post 11 and inserts fixed block 6 middle part, contact with terminal 13, outer protective housing 1 both ends all fixedly connected with two fixed plates 2, fixed plate 2 middle part sliding connection has the screw thread, and the bolt passes fixed plate 2 thread tightening at appointed installation place, fix fixed plate 2 and outer protective housing 1 at appointed place through the bolt, facilitate the use.
Working principle: when in use, the device is fixed at a designated place through bolts, the buckle at one end of the protective cover 3 is detached, the protective cover 3 and the outer protective shell 1 are separated, the protective cover 3 rotates around the outer protective shell 1 through a hinge, the optical fiber differential protection device 7 is inserted into the middle part of the outer protective shell 1, the limit sliding block 8 faces the groove on the fixed block 6, when the optical fiber differential protection device 7 is inserted into the middle part of the outer protective shell 1, the inclined plane can press the wire pole 11, so that the wire pole 11 is pushed into the optical fiber differential protection device 7, when the wire pole 11 moves to the position right above the wiring pole 13, the spring 10 pushes the wire pole 11 to be inserted into the middle part of the fixed block 6 to be contacted with the wiring pole 13, the protective cover 3 is closed again, the protective cover 3 and the fixed block 6 can prop against the optical fiber differential protection device 7, the optical fiber differential protection device 7 is prevented from shaking in the middle part of the outer protective shell 1, an external lead is inserted into the middle part of the fixed cylinder 12, the fixing bolt 14 is rotated to enable the fixing bolt 14 to extrude the external lead, so that the external lead is fixed in the middle of the fixing barrel 12, the working numerical value of the optical fiber differential protection device 7 can be seen through the display screen 9, the optical fiber differential protection device 7 generates heat during working, the fixing block 6 and the outer protection shell 1 form a heat dissipation space in the middle of the outer protection shell 1, the fan blades 17 are driven to rotate by the two groups of motors 16, so that air enters the heat dissipation space along the air inlet barrel 4, flows downwards along the heat dissipation space, flows out of through holes at two sides of the lower end of the outer protection shell 1, and then takes out the heat in the middle of the outer protection shell 1, thereby achieving the heat dissipation effect, prolonging the service life of the optical fiber differential protection device 7, and when the optical fiber differential protection device 7 is maintained, the fixing bolt 14 is rotated to take down the external lead, the protective cover 3 is opened to expose the optical fiber differential protection device 7, a tool is used to push the binding post 13 from the lower end of the fixed cylinder 12, so that the binding post 13 pushes the lead post 11 upwards, the lead post 11 is pushed out from the inside of the fixed block 6, then the optical fiber differential protection device 7 can be taken out from the middle of the outer protective shell 1, the optical fiber differential protection device 7 can be separated from the outer protective shell 1, the optical fiber differential protection device 7 is convenient to maintain, the specific model specifications of the optical fiber differential protection device and the display screen are required to be determined according to the actual specifications of the device, and the specific model selection calculation method adopts the prior art in the field, so that the detailed description is omitted.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. An optical fiber differential protection device comprises an outer protective shell (1), and is characterized in that: the utility model discloses a motor, including outer protective housing (1), fixed block (6), including outer protective housing (1), inner surface and fixed block (6) surface, outer protective housing (1) upper end both sides are equal fixedly connected with inlet tube (4), and inlet tube (4) middle part and heat dissipation space are linked together, inlet tube (4) keep away from outer protective housing (1) one end fixedly connected with dust guard (5), inlet tube (4) inside fixedly connected with mount (15), mount (15) lower extreme fixedly connected with motor (16), motor (16) output fixedly connected with flabellum (17), outer protective housing (1) lower extreme both sides are provided with the through-hole, and through-hole middle part fixedly connected with dust guard (5).
2. The differential optical fiber protection device according to claim 1, wherein: two ends of the outer protective shell (1) are fixedly connected with two fixing plates (2), the middle part of each fixing plate (2) is connected with threads in a sliding mode, and bolts penetrate through the fixing plates (2) to be fixed at a designated installation place in a threaded mode.
3. The differential optical fiber protection device according to claim 1, wherein: the novel optical fiber protective device is characterized in that an optical fiber differential protection device (7) is slidably connected in the middle of the outer protective shell (1), a display screen (9) is arranged at the upper end of the optical fiber differential protection device (7), springs (10) are arranged inside two sides of the lower end of the optical fiber differential protection device (7), a wire column (11) is fixedly connected to one end of each spring (10), the wire column (11) is slidably connected inside the optical fiber differential protection device (7) and the fixing blocks (6), two groups of inclined planes are uniformly arranged on one side, close to the protective cover (3), of one group of fixing blocks (6) at the lower end of the outer protective shell (1), and the inclined planes are overlapped with the lower end of each wire column (11).
4. A differential optical fiber protector according to claim 3, characterized in that: a limiting block is fixedly connected to the surface of one end, close to the spring (10), of the wire column (11), and the limiting blocks are all connected inside the optical fiber differential protection device (7) in a sliding mode.
5. The differential optical fiber protector according to claim 4, wherein: the outer protective housing (1) lower extreme surface evenly fixedly connected with two sets of fixed barrels (12), fixed barrel (12) middle part upper end sliding connection has terminal (13), terminal (13) upper end passes outer protective housing (1) lateral wall, and terminal (13) and wire post (11) cross-section coincidence, fixed barrel (12) lower extreme threaded connection has gim peg (14).
6. The differential optical fiber protector according to claim 5, wherein: the side face of the optical fiber differential protection device (7) is fixedly connected with a plurality of limit sliding blocks (8), and the limit sliding blocks (8) are all connected inside the fixed block (6) in a sliding mode.
7. The differential optical fiber protector according to claim 6, wherein: one side of the outer protective shell (1) is hinged with a protective cover (3) through two combined pages, the middle part of one end of the protective cover (3) far away from the hinge is connected with the outer protective shell (1) through a buckle, an observation window is arranged at the upper end of the protective cover (3), and the observation window is opposite to the display screen (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239758.1U CN219999875U (en) | 2023-05-22 | 2023-05-22 | Optical fiber differential protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239758.1U CN219999875U (en) | 2023-05-22 | 2023-05-22 | Optical fiber differential protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219999875U true CN219999875U (en) | 2023-11-10 |
Family
ID=88612061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321239758.1U Active CN219999875U (en) | 2023-05-22 | 2023-05-22 | Optical fiber differential protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219999875U (en) |
-
2023
- 2023-05-22 CN CN202321239758.1U patent/CN219999875U/en active Active
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