CN211858296U

CN211858296U - Three-phase lightning arrester with fracture

Info

Publication number: CN211858296U
Application number: CN202020819383.6U
Authority: CN
Inventors: 王真真; 于文虎; 郭彦浩
Original assignee: Shanghai Wusong Electric Industrial Co ltd
Current assignee: Shanghai Wusong Electric Industrial Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-11-03
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a three-phase area fracture arrester, which comprises a housin, the sealed three-phase insulation basin of bolt installation is passed through on the top of casing, and the opening of a lateral wall of casing is spilt and is connected explosion-proof equipment, installs the monitor on the opening of another lateral wall of casing, and first core, second core and third core are connected respectively to the inside of casing. This three-phase area fracture arrester, establish the switch box in the built-in fracture of keeping apart, there is the conductor in the switch box, shield cover under the first, shield cover and third are shield cover side wall connection horizontally insulator spindle under the second, very big improvement the operation of product is reliable, the port of insulator spindle is connected with the handle that runs through the casing, the rotatory guide that drives of handle, the rack, the gear is mutually supported, slide from top to bottom through outside rotatory realization inner conductor, thereby realize the deciliter of fracture, need not dismantle the sealed link of casing again outside can operate, be different from can dismantling the conductor and satisfy the withstand voltage product of fracture.

Description

Three-phase lightning arrester with fracture

Technical Field

The utility model relates to an arrester technical field specifically is a three-phase area fracture arrester.

Background

A lightning arrester: an electrical appliance for protecting electrical equipment from high transient overvoltage during lightning strike, limiting follow current time, and also limiting follow current amplitude. The surge arrester is sometimes also referred to as an overvoltage protector, overvoltage limiting.

The lightning arresters are classified into various types, including a metal oxide lightning arrester, a line type metal oxide lightning arrester, a line-free type metal oxide lightning arrester, a fully-insulated composite sheathed metal oxide lightning arrester, and a detachable lightning arrester.

The main types of arresters are tube-type arresters, valve-type arresters, zinc oxide arresters, and the like. The main operating principle of each type of arrester is different, but their operation is substantially the same, all in order to protect the communication cables and the communication equipment from damage.

The existing lightning arrester needs to be disassembled to operate an inner conductor, so that the sealing performance is reduced in the disassembling and assembling process.

Disclosure of Invention

An object of the utility model is to provide a three-phase area fracture arrester, it is reliable to have very big improvement the operation of product, the port of insulator spindle is connected with the handle that runs through the casing, the rotatory guide that drives of handle, rack, gear mutually support, slide from top to bottom through outside rotatory realization inner conductor, thereby realize the deciliter of fracture, need not dismantle the sealed link of casing again outside can operate, be different from the advantage that can dismantle the conductor and satisfy the withstand voltage product of fracture, the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a three-phase lightning arrester with a fracture comprises a shell, wherein a sealed three-phase insulating basin is mounted at the top end of the shell through bolts, an explosion-proof device is connected to an opening in one side wall of the shell in a scattering manner, a monitor is mounted on an opening in the other side wall of the shell, and a first core body, a second core body and a third core body are respectively connected to the inside of the shell;

the three-phase insulation basin is positioned right above the first core body, the second core body and the third core body and is connected with corresponding upper shielding covers, and spring contact fingers are arranged in the upper shielding covers;

the top ends of the first core body, the second core body and the third core body are respectively provided with a first lower shielding cover, a second lower shielding cover and a third lower shielding cover, the top ends of the first lower shielding cover, the second lower shielding cover and the third lower shielding cover are respectively fixed with a conductor and a switch box coated outside the conductor, the side walls of the switch box above the first lower shielding cover, the second lower shielding cover and the third lower shielding cover are connected with a horizontal insulating rod, and the port of the insulating rod is connected with a handle penetrating through the shell;

the bottom end of the monitor is connected with a grounding rod connected with the shell, a binding post is connected in the monitor, and the binding post is electrically connected with the first core body, the second core body and the third core body respectively through conducting wires.

Preferably, the spring contact finger is installed in a groove at the bottom of the upper shielding case, the diameter of the conductor is matched with that of the groove, and the conductor is in contact connection with the spring contact finger.

Preferably, the centers of the first core, the second core and the third core form an equilateral triangle.

Preferably, the switch box is located beside the first core, the second core and the third core which are offset from the center of the circle.

Compared with the prior art, the beneficial effects of the utility model are as follows:

according to the three-phase lightning arrester with the fracture, the switch box is arranged in the built-in isolation fracture, a conductor is arranged in the switch box, the side walls of the switch box above the first lower shielding case, the second lower shielding case and the third lower shielding case are connected with the horizontal insulating rod, and the switch box is fixed above the lightning arrester core body, is not easy to loosen and is convenient to adjust; insulating rod adopts epoxy resin pouring to form between outside operation portion and the switch box insulating strength and rotary strength all to satisfy the requirement far away, very big improvement the operation of product reliable, the port of insulating rod is connected with the handle that runs through the casing, the rotatory guide that drives of handle, the rack, the gear is mutually supported, slide from top to bottom through outside rotatory realization inner conductor, thereby realize the deciliter of fracture, need not dismantle the sealed link of casing again outside can operate, be different from the withstand voltage product of detachable conductor.

Drawings

FIG. 1 is an internal cross-sectional view of the present invention;

fig. 2 is an internal plan view of the present invention.

In the figure: 1. a housing; 11. a first core; 111. a first lower shield case; 12. a second core; 121. a second lower shield can; 13. a third core; 131. a third lower shield case; 14. a handle; 2. a three-phase insulating basin; 21. an upper shield case; 3. an explosion-proof device; 4. a monitor; 41. a ground rod; 42. a binding post; 5. a spring contact finger; 6. a conductor; 61. a switch box; 7. an insulating rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a three-phase lightning arrester with a fracture includes a housing 1, a three-phase insulating basin 2 sealed at the top end of the housing 1 is installed by bolts, an explosion-proof device 3 is connected to an opening of one side wall of the housing 1 in a scattering manner, a monitor 4 is installed on an opening of the other side wall of the housing 1, a first core 11, a second core 12 and a third core 13 are respectively connected to the inside of the housing 1, and the centers of circles of the first core 11, the second core 12 and the third core 13 form an equilateral triangle.

The three-phase insulation basin 2 is positioned right above the first core 11, the second core 12 and the third core 13 and is connected with the corresponding upper shielding cover 21, spring contact fingers 5 are arranged in the upper shielding cover 21, the spring contact fingers 5 are arranged in a groove at the bottom of the upper shielding cover 21, the diameter of the conductor 6 is matched with the groove, and the conductor 6 is in contact connection with the spring contact fingers 5; the top ends of the first core body 11, the second core body 12 and the third core body 13 are respectively provided with a first lower shielding case 111, a second lower shielding case 121 and a third lower shielding case 131, the top ends of the first lower shielding case 111, the second lower shielding case 121 and the third lower shielding case 131 are respectively fixed with a conductor 6 and a switch box 61 coated outside the conductor 6, the switch box 61 is positioned on one side of the first core body 11, the second core body 12 and the third core body 13 deviating from the circle center, the switch box 61 is arranged in a built-in isolation fracture, the conductor 6 is arranged in the switch box 61, the side walls of the switch box 61 above the first lower shielding case 111, the second lower shielding case 121 and the third lower shielding case 131 are connected with a horizontal insulating rod 7, and the switch box 61 is fixed above the lightning arrester core body, is not easy to loosen and convenient to adjust; insulating rod 7 adopts epoxy resin to pour into a mould and forms insulating strength and rotary strength and all satisfy the requirement far away between external operation portion and switch box 61, very big improvement the operation of product reliable, the port of insulating rod 7 is connected with the handle 14 that runs through casing 1, the rotatory guide that drives of handle 14, the rack, the gear is mutually supported, it slides from top to bottom to realize inner conductor 6 through outside rotation, thereby realize the deciliter of fracture, built-in isolation fracture, need not dismantle casing 1 sealed link outside again and can operate, be different from the withstand voltage product of detachable conductor 6 and satisfy the fracture, the earth bar 41 that meets with casing 1 is connected on monitor 4's the bottom, monitor 4 in-connection has terminal 42, terminal 42 respectively with first core 11, second core 12 and third core 13 pass through wire electric connection.

In summary, the following steps: according to the three-phase lightning arrester with the fracture, the switch box 61 is arranged in the built-in isolation fracture, the conductor 6 is arranged in the switch box 61, the side walls of the switch box 61 above the first lower shielding case 111, the second lower shielding case 121 and the third lower shielding case 131 are connected with the horizontal insulating rod 7, and the switch box 61 is fixed above the lightning arrester core body, so that the looseness is not easy to occur, and the adjustment is convenient; insulating rod 7 adopts epoxy resin to pour into a mould and forms insulating strength and rotary strength and all satisfy the requirement far away between outside operation portion and switch box 61, very big improvement the operation of product reliable, the port of insulating rod 7 is connected with the handle 14 that runs through casing 1, the rotatory guide that drives of handle 14, the rack, the gear is mutually supported, slide from top to bottom through outside rotatory realization inner conductor 6, thereby realize the deciliter of fracture, need not dismantle 1 sealed link of casing outside again and can operate, be different from the withstand voltage product of conductor 6 satisfaction fracture of dismantling.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 three-phase area fracture arrester, includes casing (1), its characterized in that: the top end of the shell (1) is provided with a sealed three-phase insulating basin (2) through bolts, an opening of one side wall of the shell (1) is connected with an explosion-proof device (3) in a scattering manner, an opening of the other side wall of the shell (1) is provided with a monitor (4), and the interior of the shell (1) is respectively connected with a first core body (11), a second core body (12) and a third core body (13);

the three-phase insulation basin (2) is positioned right above the first core body (11), the second core body (12) and the third core body (13) and is connected with corresponding upper shielding covers (21), and spring contact fingers (5) are arranged in the upper shielding covers (21);

a first lower shielding cover (111), a second lower shielding cover (121) and a third lower shielding cover (131) are respectively arranged at the top ends of the first core body (11), the second core body (12) and the third core body (13), a conductor (6) and a switch box (61) coated outside the conductor (6) are fixed on the top ends of the first lower shielding cover (111), the second lower shielding cover (121) and the third lower shielding cover (131), the side walls of the switch box (61) above the first lower shielding cover (111), the second lower shielding cover (121) and the third lower shielding cover (131) are connected with a horizontal insulating rod (7), and the port of the insulating rod (7) is connected with a handle (14) penetrating through the shell (1);

the ground rod (41) connected with the shell (1) is connected to the bottom end of the monitor (4), the binding post (42) is connected in the monitor (4), and the binding post (42) is electrically connected with the first core body (11), the second core body (12) and the third core body (13) through conducting wires.

2. A three-phase arrester with break according to claim 1, characterized in that the spring contact finger (5) is mounted in a bottom groove of the upper shield (21), the diameter of the conductor (6) is adapted to the groove, and the conductor (6) is in contact connection with the spring contact finger (5).

3. A three-phase break arrester as claimed in claim 1, characterized in that the centres of the first core (11), the second core (12) and the third core (13) form an equilateral triangle.

4. A three-phase break arrester as claimed in claim 1, characterized in that the switch box (61) is located beside the first core (11), the second core (12) and the third core (13) off-centre.