CN113794182A - Short-circuit protection device of maintainable electrical system - Google Patents
Short-circuit protection device of maintainable electrical system Download PDFInfo
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- CN113794182A CN113794182A CN202111213247.8A CN202111213247A CN113794182A CN 113794182 A CN113794182 A CN 113794182A CN 202111213247 A CN202111213247 A CN 202111213247A CN 113794182 A CN113794182 A CN 113794182A
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- copper wire
- circuit protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
- H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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Abstract
The invention provides a short-circuit protection device of a maintainable electrical system, which comprises a sealed insulating shell, a switch box cover, a fixed ceramic tube, a fixed conductive column, an inclined conductive block, a shaking separation frame structure, an elastic driving frame structure, a bending magnetism isolating frame structure, a communication through hole, a sealed insulating seat, an installation groove, an automatic compensation connecting frame structure, a bolt accommodating hole, a voltage and current detection circuit board, a display screen and an alarm, wherein the switch box cover is connected to the right side of the sealed insulating shell through a screw; the fixed ceramic tube is glued on the upper part of the inner side of the sealed insulating shell. The invention has the beneficial effects that: through the setting of metal conductive column, slope touching cushion, slope conducting block and fixed conducting post, be favorable to touching the inclined plane of cushion and slope conducting block through the slope, increase contact area of contact position, the slope conducting block that the slope set up simultaneously can play spacing effect.
Description
Technical Field
The invention belongs to the technical field of electrical short-circuit protection, and particularly relates to a short-circuit protection device for a maintainable electrical system.
Background
The simplest method for implementing short-circuit protection for protecting short-circuit faults generated by electrically short-circuiting conductors with unequal potentials in a power supply system is to install a fuse, and then to perform current-voltage relay protection by utilizing sudden increase of current and sudden decrease of voltage, wherein the short-circuit faults can be specifically divided into time-limited (timing-limited or inverse time-limited) overcurrent protection, non-time-limited or time-limited overcurrent quick-break protection, three-stage overcurrent protection current-voltage linkage sometimes-limited overcurrent or quick-break protection and the like.
However, the conventional short-circuit protection device for the electrical system has the problems that when the current is too large, the contacts are easy to be adhered together, the disconnection protection effect is poor, and a magnetic field is easy to form outside the lead to influence the normal operation of other electrical components.
Therefore, it is necessary to develop a short-circuit protection device for a serviceable electrical system.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a short-circuit protection device for a maintainable electrical system, wherein the short-circuit protection device is realized by the following technical scheme:
a short-circuit protection device of a maintainable electrical system comprises a sealed insulating shell, a switch box cover, a fixed ceramic tube, a fixed conductive column, an inclined conductive block, a shaking separation frame structure, an elastic driving frame structure, a bending magnetism isolating frame structure, a communication through hole, a sealed insulating seat, a mounting groove, an automatic compensation connecting frame structure, a bolt accommodating hole, a voltage and current detection circuit board, a display screen and an alarm, wherein the switch box cover is connected to the right side of the sealed insulating shell through a screw; the fixed ceramic tube is glued to the upper part of the inner side of the sealed insulating shell; the fixed conductive column is embedded in the inner side of the fixed ceramic tube; the inclined conductive block is arranged at the lower part of the fixed ceramic tube; the shaking separation frame structure is arranged at the lower part of the inner side of the sealed insulating shell; the elastic driving frame structure is arranged at the lower part of the left side of the switch box cover; the bending magnetism isolating frame structure is arranged at the upper part of the elastic driving frame structure; the communication through holes are respectively arranged at the upper part and the lower part of the inner side of the sealed insulating shell; the sealing insulating seat is respectively glued to the upper part and the lower part of the left side of the sealing insulating shell; the mounting groove is formed in the inner side of the sealing insulating seat; the automatic compensation connecting frame structure is arranged on the inner side of the mounting groove; the bolt accommodating hole is formed in the right side of the inner part of the mounting groove; the voltage and current detection circuit board is connected to the upper part of the left side of the switch box cover through a screw; the display screen is embedded in the right upper part of the inner side of the switch box cover; the alarm is embedded in the upper part of the inner side of the switch box cover.
Preferably, the upper part of the inclined conductive block and the lower part of the fixed conductive column are integrally arranged, and the lower part of the inclined conductive block is inclined towards the right lower part.
Preferably, the alarm is arranged on the upper part of the display screen.
Preferably, the left side of the inside of the bolt receiving hole is communicated with the right side of the inside of the mounting groove.
Preferably, the lower part of the inner side of the mounting groove is communicated with the inner side of the communication through hole.
Preferably, the left end of the lower part of the inner side of the sealed insulating shell is provided with horizontal sliding chutes, and the two horizontal sliding chutes are respectively arranged at the front end and the rear end of the lower part of the inner side of the sealed insulating shell in a group.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the arrangement of the metal conductive column, the inclined touch cushion block, the inclined conductive block and the fixed conductive column is beneficial to increasing the contact area of the contact position by inclining the inclined planes of the touch cushion block and the inclined conductive block, and meanwhile, the inclined conductive block arranged in an inclined manner can play a limiting effect.
2. In the invention, the arrangement of the fixed ceramic tube and the sliding connecting sleeve is beneficial to respectively protecting the metal conductive column and the fixed conductive column, and the surrounding magnetic field generated when the inner sides of the metal conductive column and the fixed conductive column are communicated is prevented from influencing the normal use of other devices at the inner side of the device.
3. According to the invention, the arrangement of the limiting sliding block and the reset spring is beneficial to enabling the sliding connecting sleeve to vertically move when moving through the mutual matching of the limiting sliding block and the horizontal sliding groove on the inner side of the sealed insulating shell, so that the contact positions of the inclined contact cushion block and the inclined conducting block are ensured to be quickly separated, and meanwhile, the reset spring can also push the sliding connecting sleeve to automatically reset.
4. According to the invention, the arrangement of the rubber buffer sleeve and the rubber protection pad is beneficial to playing a protection effect on the sliding connection sleeve respectively, and the sliding connection sleeve is prevented from being damaged after being subjected to impact force for a long time, so that the service life of the sliding connection sleeve is prolonged, and the sliding connection sleeve is prevented from being frequently damaged.
5. According to the invention, the arrangement of the armature pressing plate, the electromagnet and the compression spring is beneficial to the mutual matching of the electromagnet and the voltage and current detection circuit board, when the current or the voltage exceeds a set value, the compression spring pushes the armature pressing plate to move leftwards, and meanwhile, the compression ratio of the compression spring is released instantly at the moment of releasing, so that the connection part is quickly disconnected, and the disconnection speed of the device is improved.
6. According to the invention, the arrangement of the horizontal limiting column and the limiting end cover is beneficial to adjusting the left limit position of the armature pressing plate by adjusting the position of the limiting end cover at the outer side of the horizontal limiting column, so that the distance between the inclined touch cushion block and the inclined conducting block after separation is adjusted, and the safety effect of the device is improved.
7. According to the invention, the arrangement of the sliding roller, the fixed sliding rod and the U-shaped guide rail frame is beneficial to playing a limiting effect on the sliding linkage plate, the sliding linkage plate is ensured to vertically move towards the left side, and meanwhile, the sliding roller can reduce the friction force between the sliding linkage plate and the U-shaped guide rail frame during movement, so that the sliding linkage plate is prevented from being clamped during movement and the disconnection effect is prevented from being influenced.
8. According to the invention, the arrangement of the sliding linkage plate, the rotating assembly and the inclined magnetic resistance frame is beneficial to driving the inclined magnetic resistance frame to move to the left side through the matching of the sliding linkage plate and the armature pressing plate, and meanwhile, the arrangement of the rotating assembly ensures that the inclined magnetic resistance frame blocks between the inclined touch cushion block and the inclined conductive block, so that electric arcs at the connecting part are blocked, and the safety of the device is further improved.
9. According to the invention, the arrangement of the copper wire column, the end face locking ring and the compensation spring is beneficial to pushing the copper wire column to respectively approach the fixed conductive column and the metal conductive column through the elasticity of the compensation spring, and when the copper wire column is damaged, the compensation spring can be used for compensating the joint, so that the automatic maintenance can be carried out on the joint.
10. According to the invention, the sealing insulating seat, the mounting groove, the cylindrical copper wire seat and the locking bolt are arranged, so that the cylindrical copper wire seat is hidden, fingers are prevented from touching the inner side of the cylindrical copper wire seat by mistake when a worker connects the end part of a wire, and a copper wire column is convenient to disassemble.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the shaking separation frame structure of the present invention.
Fig. 3 is a schematic structural diagram of the structure of the elastic driving frame of the present invention.
FIG. 4 is a schematic structural diagram of the bending magnetic shielding frame structure of the present invention.
Fig. 5 is a schematic structural view of the automatic compensation link structure of the present invention.
In the figure:
1. sealing the insulating housing; 2. opening and closing the box cover; 3. fixing the ceramic tube; 4. fixing the conductive column; 5. inclining the conductive block; 6. shaking the separation frame structure; 61. a connecting sleeve is slid; 62. a metal conductive post; 63. obliquely touching the cushion block; 64. a limiting slide block; 65. a rubber cushion sleeve; 66. a return spring; 7. an elastic driving frame structure; 71. an armature pressing plate; 72. a horizontal limit column; 73. a limiting end cover; 74. a concrete resistance block; 75. a rubber protective pad; 76. a compression spring; 77. an electromagnet; 8. bending the magnetic isolation frame structure; 81. a sliding linkage plate; 82. a rotating assembly; 83. inclining the magnetic resistance frame; 84. a sliding roller; 85. fixing the sliding rod; 86. a U-shaped guide rail bracket; 9. a communication through hole; 10. sealing the insulating seat; 11. installing a groove; 12. an automatic compensation connecting frame structure; 121. a cylindrical copper wire holder; 122. locking the bolt; 123. a copper lead post; 124. an end face locking ring; 125. a compensation spring; 13. a bolt receiving hole; 14. a voltage current detection circuit board; 15. a display screen; 16. an alarm.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in fig. 1 and fig. 2, a short-circuit protection device for a maintainable electrical system includes a sealed insulating housing 1, a switch box cover 2, a fixed ceramic tube 3, a fixed conductive column 4, an inclined conductive block 5, a shaking separation frame structure 6, an elastic driving frame structure 7, a bending magnetic isolation frame structure 8, a communication through hole 9, a sealed insulating base 10, a mounting groove 11, an automatic compensation connecting frame structure 12, a bolt accommodating hole 13, a voltage and current detection circuit board 14, a display screen 15 and an alarm 16, wherein the switch box cover 2 is screwed on the right side of the sealed insulating housing 1; the fixed ceramic tube 3 is glued on the upper part of the inner side of the sealed insulating shell 1; the fixed conductive column 4 is embedded in the inner side of the fixed ceramic tube 3; the inclined conductive block 5 is arranged at the lower part of the fixed ceramic tube 3; the shaking separation frame structure 6 is arranged at the lower part of the inner side of the sealed insulating shell 1; the elastic driving frame structure 7 is arranged at the lower part of the left side of the switch box cover 2; the bending magnetism isolating frame structure 8 is arranged at the upper part of the elastic driving frame structure 7; the communication through holes 9 are respectively arranged at the upper part and the lower part of the inner side of the sealed insulating shell 1; the sealing insulating seat 10 is respectively glued to the upper part and the lower part of the left side of the sealing insulating shell 1; the mounting groove 11 is formed in the inner side of the sealing insulating base 10; the automatic compensation connecting frame structure 12 is arranged on the inner side of the mounting groove 11; the bolt receiving hole 13 is formed in the right side of the inner part of the mounting groove 11; the voltage and current detection circuit board 14 is connected to the upper part of the left side of the switch box cover 2 through screws; the display screen 15 is embedded in the right upper part of the inner side of the switch box cover 2; the alarm 16 is embedded in the upper part of the inner side of the switch box cover 2; the shaking separation frame structure 6 comprises a sliding connection sleeve 61, a metal conductive column 62, an inclined touch cushion block 63, a limiting slide block 64, a rubber buffer sleeve 65 and a return spring 66, wherein the metal conductive column 62 is embedded in the middle of the inner side of the sliding connection sleeve 61; the inclined touch pad 63 is arranged at the upper part of the sliding connection sleeve 61, and the lower part of the inclined touch pad is integrally arranged with the upper part of the metal conductive column 62; the two limiting slide blocks 64 are respectively integrated into a group and are arranged at the front end and the rear end of the sliding connecting sleeve 61; the rubber buffer sleeve 65 is glued at the middle position of the left side of the sliding connecting sleeve 61; the return spring 66 is arranged on the left side inside the rubber buffer sleeve 65; the sliding connection sleeve 61 respectively drives the metal conductive column 62 and the inclined contact pad 63 to move to the left, so that the connection between the inclined contact pad 63 and the inclined conductive block 5 is separated, and the circuit is disconnected.
As shown in fig. 3, in the above embodiment, specifically, the elastic driving frame structure 7 includes an armature pressing plate 71, a horizontal limiting post 72, a limiting end cover 73, a concrete resistance block 74, a rubber protection pad 75, a compression spring 76 and an electromagnet 77, where the horizontal limiting post 72 is respectively inserted into the upper and lower parts of the inner side of the armature pressing plate 71; the limit end cover 73 is in threaded connection with the left side of the horizontal limit column 72; the concrete resistance block 74 is connected to the middle position of the left side of the armature pressing plate 71 through a screw; the rubber protective pad 75 is glued to the left side of the concrete resistance block 74; the compression spring 76 is sleeved on the right side of the horizontal limiting column 72; the electromagnet 77 is arranged on the right side inside the horizontal limiting column 72; the voltage and current detection circuit board 14 cuts off the power of the electromagnet 77, the compression ratio of the compressed compression spring 76 instantly pushes the armature pressing plate 71 to move towards the left side, and the sliding connection sleeve 61 is pushed to separate through the concrete resistance block 74 and the rubber protection pad 75.
As shown in fig. 4, in the above embodiment, specifically, the bending magnetism isolating frame structure 8 includes a sliding linkage plate 81, a rotating assembly 82, an inclined magnetism isolating frame 83, a sliding roller 84, a fixed sliding rod 85 and a U-shaped guide rail frame 86, and the rotating assembly 82 is welded on the upper portion of the sliding linkage plate 81; the inclined magnetic resistance frame 83 is connected to the left side of the rotating component 82 through a screw; the two sliding rollers 84 are respectively a group of Dongguan connected in front and back of the sliding linkage plate 81; the fixed sliding rods 85 are respectively inserted at the front end and the rear end of the inner side of the sliding linkage plate 81; the U-shaped guide rail brackets 86 are respectively arranged at the front end and the rear end of the sliding linkage plate 81; the sliding roller 84 rolls along the inner side of the U-shaped guide rail bracket 86 along with the sliding linkage plate 81, so that the inclined magnetic resistance bracket 83 is pushed to be inserted between the inclined conductive block 5 and the inclined touch cushion block 63, and the arc caused by overlarge current after the inclined touch cushion block 63 is disconnected is prevented.
In the above embodiment, as shown in fig. 5, specifically, the automatic compensation connecting frame structure 12 includes a cylindrical copper wire seat 121, a locking bolt 122, a copper wire column 123, an end locking ring 124 and a compensation spring 125, wherein the locking bolt 122 is screwed on the right side of the cylindrical copper wire seat 121; the copper wire column 123 is inserted in the right upper part of the inner side of the cylindrical copper wire seat 121; the end face locking ring 124 is integrally arranged at the upper part of the outer side of the copper wire column 123; the compensation spring 125 is sleeved on the lower part of the outer side of the copper wire column 123; the terminal of the wire is inserted into the inner side of the cylindrical copper wire seat 121, the terminal is fixed by the locking bolt 122, and the compensating spring 125 pushes the copper wire column 123 to move upwards by the end locking ring 124, so as to ensure the tight fit of the joint.
In the above embodiment, specifically, the upper portion of the inclined conductive block 5 is integrally disposed with the lower portion of the fixed conductive column 4, the lower portion of the inclined conductive block 5 is inclined toward the lower right portion, and the alarm 16 is disposed on the upper portion of the display screen 15, so as to increase the use function of the device.
In the above embodiment, specifically, the left side of the inside of the bolt accommodating hole 13 is communicated with the right side of the inside of the mounting groove 11, the lower part of the inside of the mounting groove 11 is communicated with the inside of the communication through hole 9, and the joint is convenient to detach.
In the above embodiment, specifically, the left end of the lower portion of the inner side of the sealed and insulated housing 1 is provided with the horizontal sliding grooves, and the horizontal sliding grooves are respectively provided at the front end and the rear end of the lower portion of the inner side of the sealed and insulated housing 1 in a group, so as to perform a limiting function.
In the above embodiment, specifically, the upper portion of the inclined contact pad 63 is tightly attached to the lower portion of the inclined conductive block 5, and the left side of the return spring 66 is bolted to the inner left lower portion of the sliding connection sleeve 61, so as to push the sliding connection sleeve 61 to automatically return.
In the above embodiment, specifically, one side of the limiting sliding block 64, which is far away from the sliding connection sleeve 61, is inserted into the horizontal sliding groove on the inner side of the sealed insulating housing 1, and the sliding connection sleeve 61 is disposed at the lower part of the fixed ceramic tube 3, so as to prevent the occurrence of a magnetic field after the metal conductive column 62 is energized.
In the above embodiment, specifically, the right side of the electromagnet 77 and the right side of the horizontal limiting column 72 are respectively bolted to the lower part of the left side of the switch box cover 2, the left side and the right side of the compression spring 76 are respectively attached to the right side of the armature pressure plate 71 and the left side of the switch box cover 2, and the sliding connection sleeve 61 is pushed to move by the elasticity of the compression spring 76.
In the above embodiment, specifically, the U-shaped guide rail bracket 86 is respectively bolted to the front end and the rear end of the right lower part inside the sealed insulating housing 1, and the right side of the fixed sliding rod 85 is integrally arranged on the right side of the front end of the U-shaped guide rail bracket 86, so as to further achieve the limiting effect.
In the above embodiment, specifically, one side of the sliding roller 84, which is away from the sliding linkage plate 81, is inserted into the inner side of the U-shaped guide rail frame 86, and is tightly attached to the upper portion and the lower portion of the inner side of the U-shaped guide rail frame 86, so as to reduce the friction force at the joint.
In the above embodiment, specifically, the lower portion of the sliding linkage plate 81 is connected with the left side of the upper portion of the armature pressing plate 71 through a bolt, the left side of the inclined magnetic resistance frame 83 is inclined towards the left upper portion, and the left upper portion is inserted into the connection position of the inclined touch pad block 63 and the inclined conductive block 5.
In the above embodiment, specifically, the cylindrical copper wire seat 121 is embedded inside the mounting groove 11, the right side of the locking bolt 122 is disposed inside the bolt receiving hole 13, and the connecting portion of the cylindrical copper wire seat 121 and the copper wire column 123 is tightly attached.
In the above embodiment, specifically, the side of the copper wire pillar 123 far away from the cylindrical copper wire seat 121 is respectively closely attached to the right lower portion of the metal conductive pillar 62 and the right upper portion of the fixed conductive pillar 4.
In the above embodiment, specifically, the upper and lower portions of the compensation spring 125 are respectively closely attached to the outer side of the cylindrical copper wire seat 121 and the outer side of the end locking ring 124, and the copper wire column 123 penetrates through the inside of the communication through hole 9.
Principle of operation
The working principle of the invention is as follows: when the device is used, a terminal of a lead is inserted and connected to the inner side of a cylindrical copper wire seat 121, the terminal is fixed through a locking bolt 122, a compensation spring 125 pushes a copper lead column 123 to move upwards through an end face locking ring 124, tight fit of a connection part is ensured, a voltage and current detection circuit board 14 detects current or voltage in a circuit, when short circuit occurs, the current or voltage can rise instantly, the voltage and current detection circuit board 14 enables an electromagnet 77 to be powered off, a compression ratio after a compression spring 76 is compressed instantly pushes an armature pressing plate 71 to move towards the left side, a sliding connection sleeve 61 is pushed to move towards the left side through a concrete resistance block 74 and a rubber protection pad 75, the sliding connection sleeve 61 respectively drives a metal 62 and an inclined touch pad block 63 to move towards the left side, the connection part of the inclined touch pad 63 and an inclined conductive block 5 is separated, the circuit is disconnected, a sliding linkage plate 81 moves towards the left side along with the movement of the armature pressing plate 71, the sliding roller 84 rolls along the inner side of the U-shaped guide rail bracket 86 along with the sliding linkage plate 81, so that the inclined magnetic resistance bracket 83 is pushed to be inserted between the inclined conductive block 5 and the inclined touch cushion block 63, and the arc caused by overlarge current after the inclined touch cushion block 63 is disconnected is prevented.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (10)
1. The short-circuit protection device for the maintainable electrical system is characterized by comprising a sealed insulating shell (1), a switch box cover (2), a fixed ceramic tube (3), a fixed conductive column (4), an inclined conductive block (5), a shaking separation frame structure (6), an elastic driving frame structure (7), a bending magnetism isolating frame structure (8), a communication through hole (9), a sealed insulating seat (10), a mounting groove (11), an automatic compensation connecting frame structure (12), a bolt accommodating hole (13), a voltage and current detection circuit board (14), a display screen (15) and an alarm (16), wherein the switch box cover (2) is in screwed connection with the right side of the sealed insulating shell (1); the fixed ceramic tube (3) is glued to the upper part of the inner side of the sealed insulating shell (1); the fixed conductive column (4) is embedded at the inner side of the fixed ceramic tube (3); the inclined conductive block (5) is arranged at the lower part of the fixed ceramic tube (3); the shaking separation frame structure (6) is arranged at the lower part of the inner side of the sealed insulating shell (1); the elastic driving frame structure (7) is arranged at the lower part of the left side of the switch box cover (2); the bending magnetic isolation frame structure (8) is arranged at the upper part of the elastic driving frame structure (7); the communication through holes (9) are respectively arranged at the upper part and the lower part of the inner side of the sealed insulating shell (1); the sealing insulating seat (10) is respectively glued to the upper part and the lower part of the left side of the sealing insulating shell (1); the mounting groove (11) is formed in the inner side of the sealing insulating seat (10); the automatic compensation connecting frame structure (12) is arranged on the inner side of the mounting groove (11); the bolt accommodating hole (13) is formed in the right side of the inner part of the mounting groove (11); the voltage and current detection circuit board (14) is connected to the upper part of the left side of the switch box cover (2) through screws; the display screen (15) is embedded in the right upper part of the inner side of the switch box cover (2); the alarm (16) is embedded in the upper part of the inner side of the switch box cover (2); the shaking separation frame structure (6) comprises a sliding connection sleeve (61), a metal conductive column (62), an inclined touch cushion block (63), a limiting slide block (64), a rubber buffer sleeve (65) and a return spring (66), wherein the metal conductive column (62) is embedded in the middle position of the inner side of the sliding connection sleeve (61); the inclined touch cushion block (63) is arranged at the upper part of the sliding connecting sleeve (61), and the lower part of the inclined touch cushion block and the upper part of the metal conductive column (62) are integrally arranged; the two limiting sliding blocks (64) are respectively integrated into a group and are arranged at the front end and the rear end of the sliding connecting sleeve (61); the rubber buffer sleeve (65) is glued at the middle position of the left side of the sliding connecting sleeve (61); the return spring (66) is arranged on the left side of the inside of the rubber buffer sleeve (65).
2. The short-circuit protection device for the serviceable electrical system according to claim 1, wherein the resilient drive frame structure (7) comprises an armature pressing plate (71), a horizontal limit post (72), a limit end cap (73), a concrete resistance block (74), a rubber protection pad (75), a compression spring (76) and an electromagnet (77), wherein the horizontal limit post (72) is respectively inserted into the upper and lower parts of the inner side of the armature pressing plate (71); the limiting end cover (73) is in threaded connection with the left side of the horizontal limiting column (72); the concrete resistance block (74) is connected to the middle position of the left side of the armature pressing plate (71) through a screw; the rubber protective pad (75) is glued to the left side of the concrete resistance block (74); the compression spring (76) is sleeved on the right side of the horizontal limiting column (72); the electromagnet (77) is arranged on the right side of the inside of the horizontal limiting column (72).
3. The short-circuit protection device for the maintainable electrical system of claim 1, wherein the bending magnetism-isolating frame structure (8) comprises a sliding linkage plate (81), a rotating component (82), an inclined magnetism-isolating frame (83), a sliding roller (84), a fixed sliding rod (85) and a U-shaped guide rail frame (86), the rotating component (82) is welded on the upper part of the sliding linkage plate (81); the inclined magnetic resistance frame (83) is connected to the left side of the rotating component (82) through a screw; the two sliding rollers (84) are respectively a group of connected Dongguan shafts which are connected in front and back of the sliding linkage plate (81); the fixed sliding rods (85) are respectively inserted at the front end and the rear end of the inner side of the sliding linkage plate (81); the U-shaped guide rail brackets (86) are respectively arranged at the front end and the rear end of the sliding linkage plate (81).
4. The short circuit protection apparatus for serviceable electrical systems as set forth in claim 1, wherein the automatic compensation attachment structure (12) comprises a cylindrical copper wire base (121), a locking bolt (122), a copper wire post (123), an end locking ring (124), and a compensation spring (125), the locking bolt (122) being threadedly coupled to a right side of the cylindrical copper wire base (121); the copper wire column (123) is inserted in the right upper part of the inner side of the cylindrical copper wire seat (121); the end face locking ring (124) is integrally arranged on the upper part of the outer side of the copper wire column (123); the compensating spring (125) is sleeved at the lower part of the outer side of the copper wire column (123).
5. The short-circuit protection apparatus for serviceable electrical system according to claim 1, wherein the upper portion of the inclined touch pad (63) is closely attached to the lower portion of the inclined conductive block (5), and the left side of the return spring (66) is bolted to the inner left lower portion of the sliding connection sleeve (61).
6. The short-circuit protection device for serviceable electrical systems according to claim 1, characterized in that the side of the limiting slider (64) remote from the sliding connection sleeve (61) is inserted into a horizontal sliding groove inside the sealed insulating housing (1), the sliding connection sleeve (61) being arranged below the stationary ceramic tube (3).
7. The short-circuit protection device for the maintainable electrical system of claim 2, wherein the right side of the electromagnet (77) and the right side of the horizontal limit post (72) are respectively bolted to the lower part of the left side of the switch box cover (2), and the left and right sides of the compression spring (76) are respectively attached to the right side of the armature pressure plate (71) and the left side of the switch box cover (2).
8. The short-circuit protection apparatus for serviceable electrical system according to claim 3, wherein the U-shaped rail bracket (86) is bolted to the front and rear ends of the right lower portion of the inside of the hermetic insulating case (1), and the right side of the fixed sliding rod (85) is integrally disposed on the right side of the front end of the U-shaped rail bracket (86).
9. The short-circuit protection device for the maintainable electrical system of claim 3, wherein the side of the sliding roller (84) far from the sliding linkage plate (81) is inserted into the inside of the U-shaped rail bracket (86) and closely attached to the upper and lower parts of the inside of the U-shaped rail bracket (86).
10. The short-circuit protection apparatus for serviceable electrical system as set forth in claim 4, wherein the cylindrical copper wire holder (121) is embedded inside the mounting recess (11), the right side of the locking bolt (122) is disposed inside the bolt receiving hole (13), and the connecting portion of the cylindrical copper wire holder (121) and the copper wire post (123) is closely attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111213247.8A CN113794182A (en) | 2021-10-19 | 2021-10-19 | Short-circuit protection device of maintainable electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111213247.8A CN113794182A (en) | 2021-10-19 | 2021-10-19 | Short-circuit protection device of maintainable electrical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113794182A true CN113794182A (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111213247.8A Withdrawn CN113794182A (en) | 2021-10-19 | 2021-10-19 | Short-circuit protection device of maintainable electrical system |
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| Country | Link |
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| CN (1) | CN113794182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578216A (en) * | 2022-04-30 | 2022-06-03 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
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2021
- 2021-10-19 CN CN202111213247.8A patent/CN113794182A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578216A (en) * | 2022-04-30 | 2022-06-03 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
| CN114578216B (en) * | 2022-04-30 | 2022-07-15 | 南昌耀德精密五金有限公司 | Conducting device for chip test |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211214 |
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| WW01 | Invention patent application withdrawn after publication |