CN113097899A - Anti-theft protection device for cable in distribution box - Google Patents
Anti-theft protection device for cable in distribution box Download PDFInfo
- Publication number
- CN113097899A CN113097899A CN202110415460.0A CN202110415460A CN113097899A CN 113097899 A CN113097899 A CN 113097899A CN 202110415460 A CN202110415460 A CN 202110415460A CN 113097899 A CN113097899 A CN 113097899A
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- Prior art keywords
- plate
- fixed seat
- protection device
- theft protection
- fixedly connected
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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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- 239000013078 crystal Substances 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to the technical field of power distribution, and discloses an anti-theft protection device for cables inside a distribution box, which comprises a fixed bolt and a fixed seat, wherein the inner side of the fixed seat is movably connected with a piezoelectric crystal, the inner side of the fixed seat is movably connected with an air bag, the inner side of the air bag is movably connected with a movable plate, the inner part of the movable plate is fixedly connected with a first dielectric plate, and the inner part of the fixed seat is fixedly connected with a first positive plate. This anti-theft protection device of inside cable of block terminal extrudees piezoelectric crystal when not hard up the gim peg for piezoelectric crystal has the electric current to produce, and the electro-magnet circular telegram is repulsed with the magnetic path, and the spring is stretched, and spring top swing joint dielectric plate two, two passageways of piezo-resistor, the two electric connection of current variant and piezo-resistor become solid-state from liquid, fixes dielectric plate two, and piezo-resistor two and alarm electric connection play the effect of theftproof simultaneously, can play the guard action to the switch board.
Description
Technical Field
The invention relates to the technical field of power distribution, in particular to an anti-theft protection device for cables inside a distribution box.
Background
The power distribution cabinet, the lighting power distribution cabinet and the metering cabinet are final-stage equipment of a power distribution system, the power distribution cabinet is a general name of a motor control center, the power distribution cabinet is also power distribution equipment used for distributing, controlling, metering and connecting cables in a power supply system, the power distribution cabinet plays a vital role in controlling equipment and normally using electricity of nearby residents, and the cables and the power generator are connected through bolts inside the power distribution cabinet.
The switch board is when using, often can meet and have lawless persons to steal the back with the inside cable of switch board and sell, in case the switch board goes wrong then can directly influence near resident's normal power consumption problem, the local high use temperature of bolt and cable fixed contact is too high simultaneously, lead to the outer ageing of cable, bring danger, therefore, we provide a theftproof protection device of the inside cable of switch board and solve above problem, cool down through the semiconductor refrigeration piece, when stealing the cable, trigger alarm device, suggestion security personnel, the operation is thus simple, high safety.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the anti-theft protection device for the cable in the distribution box, which has the advantages of simple operation and high safety, and solves the problems that when the distribution box is used, lawless persons often steal the cable in the distribution box and sell the cable, once the distribution box has problems, the normal electricity utilization of nearby residents can be directly influenced, and meanwhile, the outer layer of the cable is aged due to the fact that the temperature of a place fixedly contacted with the cable is too high after the place is used for a long time, so that danger is brought.
(II) technical scheme
In order to realize the purposes of simple operation and high safety, the invention provides the following technical scheme: an anti-theft protection device for cables inside a distribution box comprises a fixed bolt and a fixed seat, wherein the inner side of the fixed seat is movably connected with a piezoelectric crystal, the inner side of the fixed seat is movably connected with an air bag, the inner part of the air bag is movably connected with a movable plate, the inner part of the movable plate is fixedly connected with a first positive plate, the inner part of the fixed seat is fixedly connected with a first negative plate, the inner part of the fixed seat is fixedly connected with a first piezoresistor, the inner part of the fixed seat is movably connected with a sealed cavity, the sealed cavity is filled with an electrorheological body, the fixed seat is provided with a movable groove, the inner bottom of the movable groove is movably connected with an electromagnet, the top of the electromagnet is movably connected with a spring, the top of the spring is movably connected with a magnetic block, and, the inside fixedly connected with negative plate two of fixing base, the inside fixedly connected with piezo-resistor two of fixing base, the inside fixedly connected with positive plate two of fixing base, the bottom swing joint of gim peg has the semiconductor refrigeration piece.
Preferably, the fixing seat is internally provided with a limiting groove, the diameter of the limiting groove is equal to the diameter of the fixing bolt.
Preferably, the piezoelectric crystal has two piezoelectric crystals, and the two piezoelectric crystals are symmetrical about the fixing bolt, and when the fixing bolt is loosened from the outside, the piezoelectric crystal is pressed, so that the piezoelectric crystal has current generation.
Preferably, the outside of gasbag is seted up the spout, and the diameter of spout equals the diameter of fly leaf, and the inboard and the gim peg swing joint of gasbag, and when the cable with gim peg junction high temperature for the gasbag inflation, promote the fly leaf and move to the outside.
Preferably, the length of positive plate one is the same with negative plate one, and the length of positive plate one is less than the length of dielectric plate one, positive plate one and negative plate one about the fly leaf symmetry, negative plate one and a piezo-resistor electric connection, a semiconductor refrigeration piece and a piezo-resistor electric connection, move outside earlier than as the dielectric plate for relative area increase between positive plate one and the negative plate one, piezo-resistor one is in the access state, the semiconductor refrigeration piece is with the heat transfer of cold junction to the hot junction, thereby makes the temperature reduction of cold junction cool down.
Preferably, the current variant is electrically connected with the second piezoresistor, when the second piezoresistor is in a channel, an electric field is arranged around the current variant and changes from a liquid state to a solid state, the second dielectric plate is fixed, and the second piezoresistor is electrically connected with the alarm.
Preferably, the opposite surfaces of the electromagnet and the magnetic block have the same magnetic pole, the electromagnet is electrically connected with the piezoelectric crystal, the piezoelectric crystal generates current, the electromagnet and the magnetic block repel each other, and the spring is stretched.
Preferably, the second positive plate and the second negative plate are symmetrical about the second dielectric plate, the second negative plate is electrically connected with the second piezoresistor, when the electromagnet and the magnetic block repel each other, the second dielectric plate is pushed to move upwards, so that the relative area between the second positive plate and the second negative plate is increased, and when the current between the second positive plate and the second negative plate is greater than the minimum path voltage of the second piezoresistor, the second piezoresistor is in a path.
(III) advantageous effects
Compared with the prior art, the invention provides an anti-theft protection device for cables in a distribution box, which has the following beneficial effects:
1. this anti-theft protection device of inside cable of block terminal extrudees piezoelectric crystal when not hard up the gim peg for piezoelectric crystal has the electric current to produce, and the electro-magnet circular telegram is repulsed with the magnetic path, and the spring is stretched, and spring top swing joint dielectric plate two, two passageways of piezo-resistor, the two electric connection of current variant and piezo-resistor become solid-state from liquid, fixes dielectric plate two, and piezo-resistor two and alarm electric connection play the effect of theftproof simultaneously, can play the guard action to the switch board.
2. This anti-theft protection device of block terminal inside cable, it is too high to work as cable and gim peg interface department temperature for the gasbag inflation, promote the fly leaf and move to the outside, the burden makes a piezo-resistor be in the access state, a semiconductor refrigeration piece and piezo-resistor electric connection, the heat transfer of semiconductor refrigeration piece with the cold junction to the hot junction, thereby the temperature of feasible cold junction reduces and cools down, play the guard action, prevent that the cable outside from warping ageing, practiced thrift cost of maintenance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a schematic diagram of a second moving structure of the dielectric plate according to the present invention;
FIG. 4 is an enlarged partial view of the portion B in FIG. 3 according to the present invention.
In the figure: 1. a fixing bolt; 2. a fixed seat; 3. a piezoelectric crystal; 4. an air bag; 5. a movable plate; 6. a first dielectric plate; 7. a first positive plate; 8. a first negative plate; 9. a first voltage dependent resistor; 10. sealing the cavity; 11. an electrorheological fluid; 12. a movable groove; 13. an electromagnet; 14. a spring; 15. a magnetic block; 16. a second dielectric plate; 17. a negative plate II; 18. a second voltage dependent resistor; 19. a second positive plate; 20. semiconductor refrigeration piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an anti-theft protection device for cables inside a distribution box comprises a fixing bolt 1 and a fixing seat 2, wherein the fixing seat 2 is internally provided with a limiting groove, the diameter of the limiting groove is equal to the diameter of the fixing bolt 1, the inner side of the fixing seat 2 is movably connected with two piezoelectric crystals 3, the two piezoelectric crystals 3 are symmetrical about the fixing bolt 1, when the fixing bolt 1 is loosened from the outside, the piezoelectric crystals 3 are extruded, so that current is generated in the piezoelectric crystals 3, the inner side of the fixing seat 2 is movably connected with an air bag 4, the outer side of the air bag 4 is provided with a sliding groove, the diameter of the sliding groove is equal to the diameter of a movable plate 5, the inner side of the air bag 4 is movably connected with the fixing bolt 1, when the temperature at the interface of the cable and the fixing bolt 1 is too high, the air bag 4 expands to push the movable plate 5 to move towards the outside, the, the inside fixedly connected with positive plate 7 of fixing base 2.
The length of the first positive plate 7 is the same as that of the first negative plate 8, the length of the first positive plate 7 is smaller than that of the first dielectric plate 6, the first positive plate 7 and the first negative plate 8 are symmetrical about the movable plate 5, the first negative plate 8 is electrically connected with the first piezoresistor 9, the semiconductor refrigeration sheet 20 is electrically connected with the first piezoresistor 9, when the first dielectric plate 6 moves outwards, the relative area between the first positive plate 7 and the first negative plate 8 is increased, the first piezoresistor 9 is in a passage state, the semiconductor refrigeration sheet 20 transmits the heat of the cold end to the hot end, the temperature of the cold end is reduced, the first negative plate 8 is fixedly connected inside the fixed seat 2, the first piezoresistor 9 is fixedly connected inside the fixed seat 2, the sealed cavity 10 is movably connected inside the fixed seat 2, the current variant 11 is filled inside the sealed cavity 10, when the second varistor 18 is turned on, an electric field is around the current transformer 11, and the current transformer changes from a liquid state to a solid state.
Fixing a second dielectric plate 16, electrically connecting a second piezoresistor 18 with an alarm, forming a movable groove 12 in the fixed seat 2, movably connecting an electromagnet 13 at the bottom of the movable groove 12, wherein the opposite magnetic poles of the electromagnet 13 and the magnetic block 15 are the same, electrically connecting the electromagnet 13 with the piezoelectric crystal 3, generating current by the piezoelectric crystal 3, repelling the electromagnet 13 and the magnetic block 15, stretching the spring 14, movably connecting a spring 14 at the top of the electromagnet 13, movably connecting a magnetic block 15 at the top of the spring 14, movably connecting a second dielectric plate 16 at the top of the magnetic block 15, fixedly connecting a second negative plate 17 in the fixed seat 2, fixedly connecting a second piezoresistor 18 in the fixed seat 2, fixedly connecting a second positive plate 19 in the fixed seat 2, wherein the second positive plate 19 and the second negative plate 17 are symmetrical with respect to the second dielectric plate 16, and electrically connecting the second negative plate 17 with the second piezo, when the electromagnet 13 and the magnetic block 15 repel each other, the second dielectric plate 16 is pushed to move upwards, so that the relative area between the second positive plate 19 and the second negative plate 17 is increased, when the current between the second positive plate 19 and the second negative plate 17 is greater than the minimum path voltage of the second piezoresistor 18, the second piezoresistor 18 is in a path, and the bottom of the fixing bolt 1 is movably connected with the semiconductor refrigerating piece 20.
The working principle is as follows: two piezoelectric crystals 3 are arranged, the two piezoelectric crystals 3 are symmetrical about the fixing bolt 1, when the fixing bolt 1 is loosened from the outside, the piezoelectric crystals 3 are pressed, current is generated on the piezoelectric crystals 3, the electromagnet 13 is electrically connected with the piezoelectric crystals 3, the electromagnet 13 is repelled by the magnetic block 15, the spring 14 is stretched, the top of the spring 14 is movably connected with the second dielectric plate 16, the second dielectric plate 16 is pushed to move upwards, the relative area between the second positive plate 19 and the second negative plate 17 is increased, when the current between the second positive plate 19 and the second negative plate 17 is larger than the minimum path voltage of the second piezoresistor 18, the second piezoresistor 18 is in a path, the second electrorheological body 11 is electrically connected with the second piezoresistor 18, when the second piezoresistor 18 is in a path, an electric field is arranged around the electrorheological body 11, the electrorheological body is changed from a liquid state to a solid state, the second dielectric, play the effect of theftproof, the spout has been seted up in the outside of gasbag 4, and the diameter of spout equals the diameter of fly leaf 5, it is too high when cable and 1 kneck temperature of gim peg, make gasbag 4 inflation, promote fly leaf 5 and remove to the outside, negative plate 8 and piezo-resistor 9 electric connection, the electric current is greater than the minimum access voltage of piezo-resistor 9 between positive plate 7 and negative plate 8, piezo-resistor 9 is in the access state, semiconductor refrigeration piece 20 and piezo-resistor 9 electric connection, semiconductor refrigeration piece 20 is with the heat transfer of cold junction to the hot junction, thereby make the temperature reduction of cold junction cool down, play the guard action, prevent that the cable outside from warping ageing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an anti-theft protection device of inside cable of block terminal, includes gim peg (1) and fixing base (2), its characterized in that: the inner side of the fixed seat (2) is movably connected with a piezoelectric crystal (3), the inner side of the fixed seat (2) is movably connected with an air bag (4), the inner part of the air bag (4) is movably connected with a movable plate (5), the inner part of the movable plate (5) is fixedly connected with a dielectric plate I (6), the inner part of the fixed seat (2) is fixedly connected with a positive plate I (7), the inner part of the fixed seat (2) is fixedly connected with a negative plate I (8), the inner part of the fixed seat (2) is fixedly connected with a piezoresistor I (9), the inner part of the fixed seat (2) is movably connected with a sealed cavity (10), the interior of the sealed cavity (10) is filled with a current variant (11), the fixed seat (2) is provided with a movable groove (12), the inner bottom of the movable groove (12) is movably connected with an electromagnet (13), and, the top swing joint of spring (14) has magnetic path (15), the top swing joint of magnetic path (15) has dielectric plate two (16), the inside fixedly connected with negative plate two (17) of fixing base (2), the inside fixedly connected with piezo-resistor two (18) of fixing base (2), the inside fixedly connected with positive plate two (19) of fixing base (2), the bottom swing joint of gim peg (1) has semiconductor refrigeration piece (20).
2. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the inside of fixing base (2) is seted up the spacing groove, and the diameter of spacing groove equals the diameter of gim peg (1).
3. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the number of the piezoelectric crystals (3) is two, and the two piezoelectric crystals (3) are symmetrical about the fixing bolt (1).
4. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the outer side of the air bag (4) is provided with a sliding groove, the diameter of the sliding groove is equal to that of the movable plate (5), and the inner side of the air bag (4) is movably connected with the fixed bolt (1).
5. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the length of the first positive plate (7) is the same as that of the first negative plate (8), the length of the first positive plate (7) is smaller than that of the first dielectric plate (6), the first positive plate (7) and the first negative plate (8) are symmetrical relative to the movable plate (5), the first negative plate (8) is electrically connected with the first piezoresistor (9), and the semiconductor refrigerating sheet (20) is electrically connected with the first piezoresistor (9).
6. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the current variant (11) is electrically connected with the second piezoresistor (18), and the second piezoresistor (18) is electrically connected with the alarm.
7. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the opposite surfaces of the electromagnet (13) and the magnetic block (15) have the same magnetic poles, and the electromagnet (13) is electrically connected with the piezoelectric crystal (3).
8. The anti-theft protection device for cables inside distribution boxes according to claim 1, characterized in that: the second positive plate (19) and the second negative plate (17) are symmetrical about the second dielectric plate (16), and the second negative plate (17) is electrically connected with the second piezoresistor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415460.0A CN113097899A (en) | 2021-04-18 | 2021-04-18 | Anti-theft protection device for cable in distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415460.0A CN113097899A (en) | 2021-04-18 | 2021-04-18 | Anti-theft protection device for cable in distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113097899A true CN113097899A (en) | 2021-07-09 |
Family
ID=76678221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110415460.0A Withdrawn CN113097899A (en) | 2021-04-18 | 2021-04-18 | Anti-theft protection device for cable in distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113097899A (en) |
-
2021
- 2021-04-18 CN CN202110415460.0A patent/CN113097899A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210709 |