CN216145472U

CN216145472U - Semi-closed recoil comprehensive arc extinguishing lightning arrester

Info

Publication number: CN216145472U
Application number: CN202122000894.2U
Authority: CN
Inventors: 陶建
Original assignee: Nanjing Xuanyuan Electric Co ltd
Current assignee: Nanjing Xuanyuan Electric Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-29
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a semi-closed recoil comprehensive arc-extinguishing lightning arrester, relates to the field of lightning arresters, and aims to solve the problems that the existing arc-extinguishing lightning arrester in the prior art is general in arc-extinguishing effect and insufficient in safety. The utility model discloses a lightning arrester installation box, including mounting bracket, arrester casing, electrode, conducting rod, dust-proof box, static guide arm and the one end that moves the conducting rod all is provided with the contact, the electrical switch install bin is installed to the below of mounting bracket, the both sides of arrester casing external surface all are provided with the breach, the upper end of arrester casing is provided with the electrode, the internally mounted of mounting bracket has the mounting panel, the inside of arrester casing is provided with the arc extinguishing chamber, the inside in arc extinguishing chamber is provided with keeps away the electrode, the inside of mounting panel is provided with moves the conducting rod, the second bracing piece is installed to one side of mounting bracket, the dust-proof box is installed to one side of second bracing piece, the inside of dust-proof box is provided with the shield cover, the static guide arm is installed to the below of dust-proof box, the static guide arm all is provided with the contact with the one end that moves the conducting rod, the electrical switch install the below of mounting bracket.

Description

Semi-closed recoil comprehensive arc extinguishing lightning arrester

Technical Field

The utility model relates to the technical field of lightning arresters, in particular to a semi-closed recoil comprehensive arc extinguishing lightning arrester.

Background

The term "arrester" is used to protect electrical equipment from high transient overvoltage and to limit the follow current time and to limit the follow current amplitude, and includes any external gap necessary for the normal function of the electrical equipment when in operation and installation, whether as a component of a whole or not, the arrester is usually connected between the grid wire and the earth wire, but sometimes also between the windings or between the wires of the electrical equipment, the ac gapless metal oxide arrester is used to protect the insulation of ac transmission and transformation equipment from lightning overvoltage and operation overvoltage, and is suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating electrical machines, semiconductor devices, and the like.

The alternating-current gapless metal oxide lightning arrester has the characteristics of excellent nonlinear volt-ampere characteristic, good response characteristic, no follow current, large through-current capacity, low residual voltage, strong overvoltage suppression capability, pollution resistance, ageing resistance, no altitude constraint, simple structure, no gap, tight seal, long service life and the like, and the lightning arrester presents a high resistance state under the normal system working voltage, only microampere current passes through the lightning arrester, and presents low resistance under the action of overvoltage and heavy current, so that the residual voltage at two ends of the lightning arrester is limited, the existing arc-extinguishing lightning arrester has a general arc-extinguishing effect and insufficient safety; therefore, the market urgently needs to develop a semi-closed recoil comprehensive arc extinguishing lightning arrester to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a semi-closed recoil comprehensive arc extinguishing lightning arrester to solve the problems of common arc extinguishing effect and insufficient safety of the existing arc extinguishing lightning arrester in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an arc extinguishing arrester is synthesized to semi-enclosed recoil, includes the mounting bracket, the arrester casing is installed to the top of mounting bracket, the both sides of arrester casing surface all are provided with the breach, the upper end of arrester casing is provided with the upper electrode, the upper electrode extends to inside and arrester casing fixed connection of arrester casing.

Preferably, the internally mounted of mounting bracket has the mounting panel, the one end and the mounting bracket welded connection of mounting panel, arrester casing and mounting panel welded connection, the inside of arrester casing is provided with the arc extinguishing chamber, the inside in arc extinguishing chamber is provided with keeps away the electrode, the inside of mounting panel is provided with moves the conducting rod, it passes through axle sleeve sliding connection to move the conducting rod and extend to arc extinguishing intracavity portion and mounting panel.

Preferably, the second bracing piece is installed to one side of mounting bracket, the dust-proof box is installed to one side of second bracing piece, the both ends of second bracing piece respectively with mounting bracket and dust-proof box fixed connection, move the conducting rod and extend to the inside and dust-proof box sliding connection of dust-proof box, the inside of dust-proof box is provided with the shield cover, shield cover and dust-proof box fixed connection.

Preferably, an electrostatic guide rod is installed below the dustproof box, contacts are arranged at one ends of the electrostatic guide rod and the movable conducting rod and are respectively connected with the electrostatic guide rod and the movable conducting rod through fixing screws, and an electrical switch installation box is installed below the installation frame.

Preferably, the electrical switch installation box is connected with the installation frame through fixed screws, the installation cover is installed to the below of dust-proof box, first bracing piece is installed to one side of installation cover, the both ends of first bracing piece respectively with dust-proof box and installation frame welded connection, the lower extreme of static guide arm is provided with the connecting rod, the connecting rod extends to the dust-proof box inside, the access panel is installed to one side of dust-proof box and installation cover, the access panel passes through fixed screws respectively with dust-proof box and installation cover fixed connection.

Preferably, the internally mounted of mounting bracket has the pivot, the bearing is all installed at the both ends of pivot, the pivot is passed through the bearing and is connected with the mounting bracket rotation, the recoil pole is installed to the centre of pivot, the one end and the pivot welded connection of recoil pole, the other end and the connecting rod of recoil pole pass through rotatory screw swing joint, the externally mounted of pivot has pressure spring, pressure spring's both ends respectively with pivot and mounting bracket welded connection.

Preferably, the top of electrical apparatus switch install bin is installed and is connect the electric end post, connect the electric end post to extend to inside and installation cover fixed connection of installation cover, the upper end of installation cover is installed and is supported the magnetic pillar, support the magnetic pillar respectively with installation cover and dust proof box fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model discloses a through the setting of recoil pole, when the upper electrode contacts the thunder and lightning, the electric current gets into inside the arrester casing through the upper electrode, contact through the arc extinguishing chamber and keep away the electrode, through insulating cooperation, the thunderbolt overvoltage that produces when the upper electrode breaks down the parallelly connected passageway protection in advance and keeps away the electrode, release through the breach of both sides, reduce the impact force, can all realize effectual extinction electric arc to different electric arc directions, electric arc can get into the inside below of this device arc extinguishing chamber through should keeping away the electrode traction, press the movable conducting rod, the movable conducting rod slides down, through contact and static guide arm contact, carry out the arc extinguishing, static guide arm can push down after the atress, can cushion pressure through the recoil pole at rear, cooperate pivot and pressure spring at recoil pole rear, provide certain pressure to the recoil pole, thereby make the static guide arm remain stable, the recoil principle that has can make the extinction electric arc ability multiply, the safety is higher.

Drawings

Fig. 1 is a front view of a semi-enclosed recoil arc-extinguishing arrester according to the present invention;

fig. 2 is a side view of a semi-enclosed recoil arc-quenching arrester in accordance with the present invention;

fig. 3 is an internal structure view of a semi-enclosed recoil arc-extinguishing arrester according to the present invention.

In the figure: 1. a mounting frame; 2. an electrical switch installation box; 3. connecting the electric terminal column; 4. mounting a cover; 5. a first support bar; 6. a bearing; 7. a kick-off stem; 8. a connecting rod; 9. an electrostatic guide rod; 10. supporting the magnetic column; 11. an access panel; 12. a dust-proof box; 13. a movable conductive rod; 14. a second support bar; 15. mounting a plate; 16. a lightning arrester housing; 17. a notch; 18. an upper electrode; 19. a rotating shaft; 20. a pressure spring; 21. a shield case; 22. a contact; 23. an arc extinguishing chamber; 24. and an electrode.

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.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides an arc arrester is synthesized to semi-enclosed recoil, includes mounting bracket 1, and arrester casing 16 is installed to the top of mounting bracket 1, and the both sides of arrester casing 16 surface all are provided with breach 17, and the upper end of arrester casing 16 is provided with upper electrode 18, and upper electrode 18 extends to inside and arrester casing 16 fixed connection of arrester casing 16, and when upper electrode 18 contacted the thunder and lightning, the electric current got into inside arrester casing 16 through upper electrode 18.

Further, the internally mounted of mounting bracket 1 has mounting panel 15, the one end and the 1 welded connection of mounting bracket of mounting panel 15,

arrester casing

16 and 15 welded connection of mounting panel, the inside of arrester casing 16 is provided with arc extinguishing chamber 23, the inside of arc extinguishing chamber 23 is provided with avoids electrode 24, the inside of mounting panel 15 is provided with moves conducting rod 13, move conducting rod 13 and extend to 23 inside and mounting panel 15 in arc extinguishing chamber and pass through axle sleeve sliding connection, electric arc can draw the inside below of getting into this device arc extinguishing chamber through this avoiding electrode 24, move conducting rod 13 is moved in the pressure, move conducting rod 13 lapse.

Further, a second supporting rod 14 is installed on one side of the installation rack 1, a dustproof box 12 is installed on one side of the second supporting rod 14, two ends of the second supporting rod 14 are respectively fixedly connected with the installation rack 1 and the dustproof box 12, the movable conducting rod 13 extends to the inside of the dustproof box 12 and is in sliding connection with the dustproof box 12, a shielding cover 21 is arranged inside the dustproof box 12, the shielding cover 21 is fixedly connected with the dustproof box 12, the outside of the dustproof box 12 is shielded in an anti-electricity mode through the shielding cover 21, and safety is improved.

Further, a static guide rod 9 is installed below the dust-proof box 12, contacts 22 are arranged at one ends of the static guide rod 9 and the movable conducting rod 13, the contacts 22 are respectively connected with the static guide rod 9 and the movable conducting rod 13 through fixing screws, and an electrical switch installation box 2 is installed below the installation frame 1.

Further, electrical apparatus switch install bin 2 passes through fixed screw connection with mounting bracket 1, installing cover 4 is installed to the below of dust proof box 12, first bracing piece 5 is installed to one side of installing cover 4, the both ends of first bracing piece 5 respectively with dust proof box 12 and 1 welded connection of mounting bracket, the lower extreme of static guide arm 9 is provided with connecting rod 8, connecting rod 8 extends to inside dust proof box 12, access panel 11 is installed to one side of dust proof box 12 and installing cover 4, access panel 11 passes through fixed screw respectively with dust proof box 12 and installing cover 4 fixed connection, contact through contact 22 and static guide arm 9, carry out the arc extinguishing, can push down behind the static guide arm 9 atress.

Further, the internally mounted of mounting bracket 1 has pivot 19, bearing 6 is all installed at the both ends of pivot 19, pivot 19 passes through bearing 6 and mounting bracket 1 and rotates and be connected, recoil pole 7 is installed to the centre of pivot 19, the one end and the pivot 19 welded connection of recoil pole 7, the other end and the connecting rod 8 of recoil pole 7 pass through rotatory screw swing joint, the externally mounted of pivot 19 has pressure spring 20, pressure spring 20's both ends respectively with pivot 19 and mounting bracket 1 welded connection, pivot 19 and pressure spring 20 at recoil pole 7 rear, provide certain pressure to recoil pole 7, thereby make static guide bar 9 remain stable, the recoil principle that has can make the electric arc extinguishing ability multiply.

Further, the electrical switch installation box 2 is provided with an electrical connection terminal post 3 above, the electrical connection terminal post 3 extends to the inside of the installation cover 4 and is fixedly connected with the installation cover 4, the upper end of the installation cover 4 is provided with a support magnetic post 10, the support magnetic post 10 is respectively fixedly connected with the installation cover 4 and the dust-proof box 12, and the switch is connected through the electrical connection terminal post 3, so that the electrical work is performed.

The working principle is as follows: when in use, the switch is connected through the electric connecting terminal post 3, so as to carry out electric work, when the upper electrode 18 is contacted with thunder, current enters the interior of the lightning arrester shell 16 through the upper electrode 18, and is contacted with the avoiding electrode 24 through the arc extinguishing cavity 23, through insulation fit, lightning overvoltage generated when the upper electrode 18 is firstly punctured through a parallel channel to protect the avoiding electrode 24, and is released through the notches 17 at two sides, so as to reduce impact force, and effectively extinguish the electric arc in different arc directions, the electric arc can be pulled to enter the lower part of the inner part of the arc extinguishing cavity of the device through the avoiding electrode 24, the movable conducting rod 13 is pressed, the movable conducting rod 13 slides downwards, is contacted with the static conducting rod 9 through the contact 22 to extinguish the arc, the static conducting rod 9 can be pressed downwards after being stressed, the pressure can be buffered through the recoil rod 7 at the rear part, and is matched with the rotating shaft 19 and the pressure spring 20 at the rear part of the recoil rod 7, certain pressure is provided for the recoil rod 7, so that the static guide rod 9 is kept stable, and the recoil principle can multiply the arc extinguishing capability.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a semi-enclosed recoil arc-extinguishing arrester, includes mounting bracket (1), its characterized in that: arrester casing (16) are installed to the top of mounting bracket (1), the both sides of arrester casing (16) surface all are provided with breach (17), the upper end of arrester casing (16) is provided with upper electrode (18), upper electrode (18) extend to inside and arrester casing (16) fixed connection of arrester casing (16).

2. The semi-enclosed recoil arc-extinguishing arrester as claimed in claim 1, wherein: the internally mounted of mounting bracket (1) has mounting panel (15), the one end and mounting bracket (1) welded connection of mounting panel (15), arrester casing (16) and mounting panel (15) welded connection, the inside of arrester casing (16) is provided with arc extinguishing chamber (23), the inside of arc extinguishing chamber (23) is provided with keeps away electrode (24), the inside of mounting panel (15) is provided with moves conducting rod (13), it extends to arc extinguishing chamber (23) inside and mounting panel (15) through axle sleeve sliding connection to move conducting rod (13).

3. The semi-enclosed recoil arc-extinguishing arrester as claimed in claim 2, wherein: second bracing piece (14) is installed to one side of mounting bracket (1), dust box (12) are installed to one side of second bracing piece (14), the both ends of second bracing piece (14) respectively with mounting bracket (1) and dust box (12) fixed connection, move conducting rod (13) and extend to inside and dust box (12) sliding connection of dust box (12), the inside of dust box (12) is provided with shield cover (21), shield cover (21) and dust box (12) fixed connection.

4. A semi-enclosed recoil arc-extinguishing arrester according to claim 3, characterized in that: static guide arm (9) are installed to the below of dust proof box (12), static guide arm (9) all are provided with contact (22) with the one end that moves conducting rod (13), contact (22) pass through fixed screw connection with static guide arm (9) and move conducting rod (13) respectively, electrical apparatus switch install bin (2) are installed to the below of mounting bracket (1).

5. The semi-enclosed recoil arc-extinguishing arrester as claimed in claim 4, wherein: appliance switch install bin (2) and mounting bracket (1) are connected through fixed screw, installation cover (4) are installed to the below of dust-proof box (12), first bracing piece (5) are installed to one side of installation cover (4), the both ends of first bracing piece (5) respectively with dust-proof box (12) and mounting bracket (1) welded connection, the lower extreme of static guide arm (9) is provided with connecting rod (8), connecting rod (8) extend to inside dust-proof box (12), access panel (11) are installed to one side of dust-proof box (12) and mounting bracket (4), access panel (11) pass through fixed screw respectively with dust-proof box (12) and mounting bracket (4) fixed connection.

6. The semi-enclosed recoil arc-extinguishing arrester as claimed in claim 5, wherein: the internally mounted of mounting bracket (1) has pivot (19), bearing (6) are all installed at the both ends of pivot (19), pivot (19) are rotated with mounting bracket (1) through bearing (6) and are connected, recoil pole (7) are installed to the centre of pivot (19), the one end and pivot (19) welded connection of recoil pole (7), the other end and connecting rod (8) of recoil pole (7) are through rotatory screw swing joint, the externally mounted of pivot (19) has compression spring (20), the both ends of compression spring (20) respectively with pivot (19) and mounting bracket (1) welded connection.

7. The semi-enclosed recoil arc-extinguishing arrester as claimed in claim 5, wherein: install the top of electrical apparatus switch install bin (2) and connect electric end post (3), connect electric end post (3) to extend to installation cover (4) inside and installation cover (4) fixed connection, the upper end of installation cover (4) is installed and is supported magnetic pillar (10), support magnetic pillar (10) respectively with installation cover (4) and dust-proof box (12) fixed connection.