CN111508792B

CN111508792B - Distribution network automation safety switch

Info

Publication number: CN111508792B
Application number: CN202010317022.6A
Authority: CN
Inventors: 吴文政; 张翼翔; 郝杰; 金发; 朱承平; 张敬伟
Original assignee: Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-26
Anticipated expiration: 2040-04-21
Also published as: CN111508792A

Abstract

The invention provides a distribution network automation safety switch, and relates to the technical field of electric power facilities. This distribution network automation safety switch, which comprises a housin, the top sliding connection of casing has the button, the peripheral fixed mounting of button has the limiting plate, the first spring of bottom fixedly connected with of limiting plate, the bottom of button is through second spring fixedly connected with touch panel, the left and right sides sliding connection of the inside button of casing has the stopper, the stopper is kept away from the one end fixed mounting of button and is had the metal block. This distribution network automation safety switch, when meeting with the thunder and lightning or because the surge higher electric current appears, can make the distribution network cut off the power supply rapidly, avoided the damage of heavy current to the distribution network, and press the button downwards once more and can make the distribution network resume for safety switch can carry out used repeatedly, can play the effect of arc extinguishing, has avoided electric arc to safety switch's damage.

Description

Distribution network automation safety switch

Technical Field

The invention relates to the technical field of electric power facilities, in particular to an automatic safety switch for distribution network.

Background

The distribution network automation is a technical means of applying computer technology, automatic control technology, electronic technology, communication technology, new high-performance distribution equipment and the like to carry out offline and online intelligent monitoring management on a distribution network, so that the distribution network is always in a safe, reliable, high-quality, economic and efficient optimal operation state.

And safety switch is exactly an important components and parts in the distribution network, mainly possess the temperature rise response, the auto-power-off, report to the police, reset, the switching, functions such as connection, guarantee that the distribution network does not receive the large tracts of land damage, be convenient for carry out timely maintenance, but traditional safety switch's sensitivity is lower, can't accomplish timely response, and after accomplishing the power-off protection, self also can suffer the damage, unable stable used repeatedly, and traditional safety switch is at the in-process of switching, the arcing phenomenon takes place easily, cause the damage to switch self.

In order to solve the above problems, the inventor provides a distribution network automation safety switch, which can rapidly cut off the power distribution network when a lightning or a surge occurs and a high current is generated, so that the power distribution network is prevented from being damaged by a large current, and the power distribution network can be recovered by pressing a button downwards again, so that the safety switch can be repeatedly used, an arc extinguishing effect can be achieved, and the safety switch is prevented from being damaged by an electric arc.

Disclosure of Invention

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a distribution network automation safety switch, includes casing, button, limiting plate, first spring, second spring, touch panel, stopper, metal block, third spring, iron core, coil, sawtooth pole, gear, terminal, branch, leads electrical pillar, ground post, probe.

Wherein:

the top of the shell is slidably connected with a button, a limiting plate is fixedly arranged on the periphery of the button, a first spring is fixedly connected with the bottom of the limiting plate, a touch panel is fixedly connected with the bottom of the button through a second spring, limiting blocks are slidably connected with the left side and the right side of the button in the shell, a metal block is fixedly arranged at one end, away from the button, of each limiting block, a third spring is fixedly connected with one end, away from the button, of each metal block, an iron core is fixedly arranged at one side, away from the metal block, of the third spring in the shell, a coil is wrapped at the periphery of the iron core, a sawtooth rod is fixedly arranged at one side of the metal block, a gear is meshed between the sawtooth rods, binding posts are fixedly arranged at the left end and the right end of the shell, a support rod is fixedly arranged at the top ends of, and a probe is fixedly arranged at the top end of the grounding column.

Preferably, the button is located the center at casing top, and peripheral spacing sliding connection of limiting plate is in the inside of casing, just the edge of limiting plate extends to the periphery at first spring edge for the button can drive the stable reciprocating of limiting plate in the inside of casing.

Preferably, the third spring is made of plastic, the touch panel is made of metal and is bent, and the left side and the right side of the touch panel are symmetrically bent downwards, so that the touch panel can form an opening towards the inner side after the conductive columns are contacted.

Preferably, the quantity of stopper is total two, and the symmetric distribution is in the left and right sides of button, and with the curb plate looks adaptation, two the cut-out has been seted up at the top of the adjacent one side of stopper, consequently, after the limiting plate and stopper contacted, the stopper can contract, and it is spacing to pop out once more after the limiting plate moves down to the limiting plate.

Preferably, the number of the sawtooth rods is two in total, the sawtooth rods are bent and are fixedly installed on one side of the metal blocks respectively, and the gears are meshed between the sawtooth rods, so that when the metal block on one side moves outwards, the metal block on the other side can be driven to move outwards, and the metal blocks on the two sides are unfolded towards the two sides.

Preferably, the inside fixedly connected with wire of branch, one end is connected with the conductor of terminal inside, and one end is connected with the coil for the electric current that produces in the distribution network can flow into in the coil.

Preferably, the touch panel is the opening form with leading when electrical pillar contact, the probe is placed at the inside level of casing, and is parallel and level mutually with the junction of touch panel and electrically conductive post for the probe can absorb touch panel and lead the electric arc that produces of electrical pillar opening part.

The invention provides an automatic safety switch for distribution network. The method has the following beneficial effects:

1. this distribution network automation safety switch, through the design of the inside button left and right sides stopper of casing, cooperation stopper both sides winding has the iron core of coil, when the distribution network meets with the thunder and lightning or because the surge and higher electric current appears, will attract metal block and stopper and remove spacing to limiting plate and button, make the button bounce, make the distribution network cut off the power supply rapidly, avoided the damage of heavy current to the distribution network, and press down the button once more and can make the distribution network resume, make safety switch can carry out used repeatedly.

2. This distribution network automation safety switch through touch panel and the inboard open-ended design of leading electrical pillar, and the design of the inboard probe that is connected with the earth connection post of cooperation opening can carry out ground connection to the electric arc that produces at the in-process that safety switch opened and shut, has played the effect of arc extinguishing, has avoided electric arc to safety switch's damage.

Drawings

FIG. 1 is a cross-sectional view of a structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention in use;

FIG. 3 is an enlarged view in cross-section of the top structure of the present invention;

FIG. 4 is a cross-sectional view of the button construction of the present invention;

FIG. 5 is a top view of the inventive toothed bar arrangement engagement.

In the figure: 1. a housing; 2. a button; 3. a limiting plate; 4. a first spring; 5. a second spring; 6. a touch panel; 7. a limiting block; 8. a metal block; 9. a third spring; 10. an iron core; 11. a coil; 12. a serrated bar; 13. a gear; 14. a binding post; 15. a strut; 16. a conductive post; 17. a ground post; 18. and (3) a probe.

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.

The distribution network automation safety switch comprises the following embodiments:

referring to fig. 1-5, a distribution network automation safety switch includes a housing 1, a button 2, a limiting plate 3, a first spring 4, a second spring 5, a touch plate 6, a limiting block 7, a metal block 8, a third spring 9, an iron core 10, a coil 11, a sawtooth rod 12, a gear 13, a binding post 14, a support rod 15, a conductive post 16, a ground post 17, and a probe 18.

Wherein:

the top of the shell 1 is slidably connected with a button 2, the button 2 is positioned at the center of the top of the shell 1, a limiting plate 3 at the periphery is slidably connected inside the shell 1 in a limiting manner, the edge of the limiting plate 3 extends to the periphery of the edge of a first spring 4, so that the button 2 can drive the limiting plate 3 to stably move up and down inside the shell 1, the limiting plate 3 is fixedly arranged at the periphery of the button 2, a first spring 4 is fixedly connected with the bottom end of the limiting plate 3, a touch panel 6 is fixedly connected with the bottom of the button 2 through a second spring 5, a third spring 9 is made of plastic material, the touch panel 6 is made of metal material and is bent, the left side and the right side of the touch panel 6 are symmetrically bent downwards to form a conductive column, after the touch panel 6 is contacted with a contact 16, an opening can be formed towards the inner side, the left side and the right, the two limiting blocks 7 are symmetrically distributed on the left side and the right side of the button 2 and are matched with the limiting plates 3, the top parts of the adjacent sides of the two limiting blocks 7 are provided with notches, therefore, after the limiting plates 3 are contacted with the limiting blocks 7, the limiting blocks 7 can contract and rebound again to limit the limiting plates 3 after the limiting plates 3 move downwards, one end of each limiting block 7, which is far away from the button 2, is fixedly provided with a metal block 8, one end of each metal block 8, which is far away from the button 2, is fixedly connected with a third spring 9, one side, which is far away from the metal block 8, of the third spring 9 in the shell 1 is fixedly provided with an iron core 10, the periphery of the iron core 10 is wrapped with a coil 11, one side of each metal block 8 is fixedly provided with sawtooth rods 12, the quantity of the sawtooth rods 12 is two in total and is bent, the sawtooth rods are respectively and fixedly arranged on, also can drive the metal block 8 of opposite side outwards to remove, and then make the metal block 8 of both sides expand to both sides, through 1 inside button 2 left and right sides stopper 7's of casing design, cooperation stopper 7 both sides winding has the iron core 10 of coil 11, when the distribution network meets the thunder and lightning or because the surge and when higher electric current appears, will attract metal block 8 and stopper 7 and relieve spacing to limiting plate 3 and button 2, make button 2 bounce, make the distribution network cut off rapidly, the damage of heavy current to the distribution network has been avoided, and press down button 2 once more and can make the distribution network resume, make safety switch can carry out used repeatedly.

A gear 13 is engaged between the sawtooth rods 12, binding posts 14 are fixedly installed at the left and right ends of the shell 1, a supporting rod 15 is fixedly installed at the top end of the binding post 14, a conducting wire is fixedly connected inside the supporting rod 15, one end of the conducting wire is connected with a conductor inside the binding post 14, the other end of the conducting wire is connected with the coil 11, so that current generated in the power distribution network can flow into the coil 11, a conducting post 16 is fixedly installed at the inner side of the binding post 14, a grounding post 17 is fixedly installed at the bottom end of the shell 1, a probe 18 is fixedly installed at the top end of the grounding post 17, the touch panel 6 is in an open shape when in contact with the conducting post 16, the probe 18 is horizontally arranged inside the shell 1 and is level with the joint of the touch panel 6 and the conducting post 16, so that the probe 18 can absorb electric arc generated at the opening of the touch panel 6 and the conducting post 16, and the, in the process of opening and closing the safety switch, the generated electric arc can be grounded, the arc extinguishing effect is achieved, and the damage of the electric arc to the safety switch is avoided.

When the safety switch is used, the safety switch is connected to a power distribution network by the binding posts 14 at the left end and the right end of the shell 1, then the grounding operation is carried out on the safety switch by the grounding posts 17 at the bottom end of the shell 1, when the power distribution network needs to be connected, the button 2 is pressed downwards to enable the button 2 to compress the first spring 4 to move downwards, the touch plate 6 at the bottom end of the button 2 is enabled to be in contact with the conductive posts 16 at the left side and the right side below the touch plate 6, then the second spring 5 is compressed to enable the touch plate 6 to be in extrusion contact with the conductive posts 16 at the two sides, when the limiting plate 3 is in contact with the limiting block 7, the limiting block 7 can be contracted, after the limiting plate 3 moves to the lower part of the limiting block 7, the limiting block 7 is popped again to limit the limiting plate 3, the button 2 cannot be popped out, further, stable power, the current in the peripheral coil 11 of the iron core 10 can be increased, and the magnetism generated at two sides of the iron core 10 is increased, so as to adsorb the metal block 8 at one side, so that the metal block 8 is contracted, and by utilizing the design that the gear 13 is meshed between the sawtooth rods 12 at one side of the metal blocks 8 at two sides, when the metal block 8 at one side moves outwards, the metal block 8 at the other side also moves outwards, so that the limit block 7 releases the limit on the limit plate 3, the button 2 is bounced under the restoring force of the first spring 4, so that the power distribution network is quickly disconnected, the damage of a large current to the power distribution network is avoided, the power distribution network can be restored by pressing the button 2 downwards again, and the functions can be repeated, when the contact plate 6 and the conductive column 16 generate electric arcs, the arcs can move towards the side with the enlarged opening through the design of the openings of the contact plate 6 and the conductive column 16 in the opening and closing, and finally contacts with the probe 18 to perform grounding treatment on the electric arc, so that the arc extinguishing effect is achieved, and the damage of the electric arc to the safety switch is avoided.

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

1. The utility model provides a distribution network automation safety switch, includes casing (1), its characterized in that: the top of the shell (1) is connected with a button (2) in a sliding manner, a limiting plate (3) is fixedly arranged on the periphery of the button (2), a first spring (4) is fixedly connected to the bottom of the limiting plate (3), a touch panel (6) is fixedly connected to the bottom of the button (2) through a second spring (5), limiting blocks (7) are slidably connected to the left side and the right side of the button (2) inside the shell (1), a metal block (8) is fixedly installed at one end, away from the button (2), of each limiting block (7), a third spring (9) is fixedly connected to one end, away from the button (2), of each metal block (8), an iron core (10) is fixedly installed on one side, away from the metal block (8), of each third spring (9) inside the shell (1), a coil (11) is wrapped on the periphery of the iron core (10), and a sawtooth rod (12) is fixedly installed on one side, a gear (13) is meshed between the sawtooth rods (12), binding posts (14) are fixedly mounted at the left end and the right end of the shell (1), supporting rods (15) are fixedly mounted at the top ends of the binding posts (14), conductive columns (16) are fixedly mounted on the inner sides of the binding posts (14), a grounding post (17) is fixedly mounted at the bottom end of the shell (1), and a probe (18) is fixedly mounted at the top end of the grounding post (17);

a lead is fixedly connected inside the support rod (15), one end of the lead is connected with a conductor inside the binding post (14), and the other end of the lead is connected with the coil (11);

the contact plate (6) is in an opening shape when in contact with the conductive column (16), and the probe (18) is horizontally arranged in the shell (1) and is flush with the connection part of the contact plate (6) and the conductive column (16).

2. The distribution network automation safety switch of claim 1, wherein: the button (2) is located at the center of the top of the shell (1), the limiting plate (3) is in limiting sliding connection in the shell (1) and is peripheral, and the edge of the limiting plate (3) extends to the periphery of the edge of the first spring (4).

3. The distribution network automation safety switch of claim 1, wherein: the third spring (9) is made of plastic, the touch panel (6) is made of metal and is bent, and the left side and the right side of the touch panel (6) are symmetrically bent downwards.

4. The distribution network automation safety switch of claim 1, wherein: the quantity of stopper (7) is total two, and the symmetric distribution is in the left and right sides of button (2), and with limiting plate (3) looks adaptation, two the cut-open has been seted up at the top of the adjacent one side of stopper (7).

5. The distribution network automation safety switch of claim 1, wherein: the number of the sawtooth rods (12) is two in total, the sawtooth rods are bent and fixedly installed on one side of the metal block (8), and the gear (13) is meshed between the sawtooth rods (12).