CN220138208U

CN220138208U - Lightning protection relay protection device

Info

Publication number: CN220138208U
Application number: CN202321441776.8U
Authority: CN
Inventors: 王宇航; 刘国友; 王长海; 张雷; 杨亚豪; 王晓芳; 王朝立; 刘振兴; 唱文学; 刘爱民
Original assignee: Huaneng Mianchi Thermoelectricity Co ltd
Current assignee: Huaneng Mianchi Thermoelectricity Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-05
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses a lightning protection relay protection device, which comprises a relay protection device shell, wherein relay wiring terminals are arranged at two ends of the relay protection device shell and are electrically connected with an external wire harness, the relay wiring terminals are connected with the external wire harness through a fixedly connected anti-dragging assembly, a card fixedly connected with the anti-dragging assembly is connected to the outer side face of the relay protection device shell through two groups of screws in a threaded manner, and an insulating frame is fixed at the outer side of the card. This lightning protection relay protection device inserts four groups of cardboards with naked pencil, with the outside of spiro union section of thick bamboo spiro union in four groups of cardboards in succession to screw up, make the distance between four groups of cardboards reduce, and fix the pencil chucking through the locking piece on it, when the pencil receives external force to draw, the pencil also can not take place to break off with relay binding post between, guarantees relay protection device's security in the during operation.

Description

Lightning protection relay protection device

Technical Field

The utility model relates to the field of relays, in particular to a lightning protection relay protection device.

Background

With the continuous development of modern electronic technology, relays are widely applied in the fields of industrial automation, household appliances, communication and the like; in the process of using the relay, some problems are often encountered, such as damage to the output port of the relay caused by interference such as lightning surge; therefore, in the design and use of the relay, the anti-surge measure is particularly important;

in order to avoid damage caused by interference of lightning surge and the like, a lightning arrester can be arranged at an output port of the relay to improve the capability of resisting the lightning surge; the lightning arrester is mainly divided into a zinc silicon oxide lightning arrester and a metal oxide lightning arrester; the installation of the lightning arrester should follow certain specifications, such as the lightning arrester should be installed in a place not far away from the protected equipment, and a reliable grounding system is established;

when the relay with the lightning protection function is used, a plurality of cables are connected to the wiring terminals at the two sides of the relay, and the traditional fixing mode is to insert the exposed copper wire part of the cable into the wiring terminals, so that the relay is wired in the wiring process;

the binding post is used for fixing the copper wire by means of clamping force formed by mutually approaching two iron sheets, so that the copper wire is fixed in the binding post; the fixing effect is unstable, the whole copper wire is easily separated from the wiring terminal under the influence of the cable, or mice and other organisms walk in the distribution box, and the cable is also involved, so that the whole copper wire is separated from the wiring terminal.

Disclosure of Invention

The utility model aims to provide a lightning protection relay protection device, which aims to solve the defects in the background art.

In order to achieve the above purpose, a lightning protection relay protection device is provided, which comprises a relay protection device shell, wherein relay wiring terminals are arranged at two ends of the relay protection device shell and are electrically connected with an external wire harness, the relay wiring terminals are connected with the external wire harness through a fixedly connected anti-dragging assembly, a card fixedly connected with the anti-dragging assembly is screwed on the outer side surface of the relay protection device shell through two groups of screws, and an insulating frame is fixed at the outer side of the card;

the inside fixed mounting conducting block of insulating frame, and the one end and the conducting column of conducting block link to each other, and the one end and the cardboard that the conducting column was kept away from to the conducting block link to each other simultaneously to the cardboard parcel is in the outside of pencil.

Preferably, one end of the conductive post is electrically connected with the relay wiring terminal, and the other end of the conductive post is electrically connected with the wire harness through the conductive block, the clamping plate and the locking block.

Preferably, the card is made of plastic material and has an L-shaped structure, the insulating frame on the card is arranged in a shape like a Chinese character 'kou', and meanwhile, the card is of a detachable structure.

Preferably, the cardboard evenly sets up four groups on the conducting block, and the outside of four groups of cardboards all sets up the helicitic texture, and the outside of four groups of cardboards carries out the spiro union through the spiro union section of thick bamboo simultaneously and fixes, and eight groups of atress flanges are evenly fixed in the outside of spiro union section of thick bamboo.

Preferably, the inner walls of the four groups of clamping plates are fixedly connected with locking blocks, the four groups of locking blocks are movably clamped on the outer sides of the wire harnesses inwards, and the transverse section of each locking block is trapezoidal.

Preferably, the initial angle between the clamping plate and the conductive block is 100 degrees, and the angle between the clamping plate and the conductive block is changed to 90 degrees after the outside of the clamping plate is in threaded connection with the threaded connection cylinder.

Compared with the prior art, the utility model has the beneficial effects that: the exposed wire harness is inserted between the four groups of clamping plates, the screw connection barrel is screwed on the outer sides of the four groups of clamping plates, the distance between the four groups of clamping plates is reduced, the wire harness is clamped and fixed through the locking piece on the screw connection barrel, when the wire harness is pulled by external force, the wire harness cannot be disconnected with the relay wiring terminal, safety of the relay protection device in working is guaranteed, mice and other organisms are prevented from moving in the distribution box, and the situation that the whole copper wire is separated from the wiring terminal due to the fact that the cable is involved is avoided.

Drawings

FIG. 1 is a schematic elevational view of the structure of the present utility model;

FIG. 2 is a schematic view of a structure of the structure-fastening anti-drag assembly of the present utility model;

FIG. 3 is a schematic view of section A-A of FIG. 2, which is a block diagram of the present utility model;

FIG. 4 is a schematic view of the initial position of the structural clamping plate of the present utility model.

Reference numerals in the drawings: 1. a relay protection device shell; 2. relay terminals; 3. a wire harness; 4. the anti-drag component is fixedly connected; 41. a card; 42. a conductive post; 43. an insulating frame; 44. a conductive block; 45. a clamping plate; 451. a thread structure; 46. a locking piece; 47. a screw connection cylinder; 48. and (5) a stress flange.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a lightning protection relay protection device, which comprises a relay protection device housing 1, wherein relay connection terminals 2 are installed at two ends of the relay protection device housing 1, and the relay connection terminals 2 are electrically connected with an external wire harness 3, and is characterized in that: the relay binding post 2 is connected with the external wire harness 3 through the fixedly connected anti-dragging assembly 4, a card 41 fixedly connected on the anti-dragging assembly 4 is screwed on the outer side surface of the relay protection device shell 1 through two groups of screws, and an insulating frame 43 is fixed on the outer side of the card 41;

the inside of the insulating frame 43 is fixedly provided with a conductive block 44, one end of the conductive block 44 is connected with the conductive column 42, and one end of the conductive block 44 away from the conductive column 42 is connected with a clamping plate 45, and the clamping plate 45 is wrapped outside the wire harness 3.

Working principle: when the relay protection device is used, the exposed wire harness 3 is inserted between the four groups of clamping plates 45, the screw connection barrel 47 is screwed on the outer sides of the four groups of clamping plates 45, the distance between the four groups of clamping plates 45 is reduced, the wire harness 3 is clamped and fixed through the locking blocks 46 on the screw connection barrel, and when the wire harness 3 is pulled by external force, the wire harness 3 cannot be disconnected from the relay connection terminal 2, so that the safety of the relay protection device in working is guaranteed.

As a preferred embodiment, one end of the conductive post 42 is electrically connected to the relay terminal 2, and the other end of the conductive post 42 is electrically connected to the wire harness 3 through the conductive block 44, the clamping plate 45 and the locking block 46.

As shown in fig. 2: the arrangement of the conductive post 42 can electrically connect the wire harness 3 with the relay wiring terminal 2 inside the relay, and the conductive post 42, the conductive block 44, the clamping plate 45 and the locking block 46 are all made of metal copper.

As a preferred embodiment, the card 41 is made of plastic material and has an L-shaped structure, and the insulating frame 43 on the card 41 is provided in a shape of a "mouth", while the card 41 is of a detachable structure.

As shown in fig. 2: the card 41 is made of plastic material and is of an L-shaped structure, the card 41 is fixed on the relay protection device shell 1 through two groups of screws, and the situation that the fixed anti-dragging assembly 4 falls off when in work can be guaranteed.

As a preferred embodiment, the clamping plates 45 are uniformly provided with four groups on the conductive block 44, the outer sides of the four groups of clamping plates 45 are provided with screw structures 451, and simultaneously, the outer sides of the four groups of clamping plates 45 are screwed and fixed through the screw connection barrel 47, and the outer sides of the screw connection barrel 47 are uniformly fixed with eight groups of stress flanges 48.

As shown in fig. 2-3: eight groups of stress flanges 48 are uniformly fixed on the outer side of the screw-on barrel 47, and the eight groups of stress flanges 48 are arranged, so that when the relay protection device is in a power-off state, the stress flanges 48 are held by hands, the screw-on barrel 47 is convenient to rotate under stress, and more labor is saved when the screw-on barrel 47 is operated.

As a preferred embodiment, the inner walls of the four groups of clamping plates 45 are fixedly connected with the locking blocks 46, and the four groups of locking blocks 46 are movably clamped on the outer side of the wire harness 3 inwards, and the transverse section of the locking blocks 46 is trapezoidal.

As shown in fig. 1-4: as a preferred embodiment, the initial angle between the clamping plate 45 and the conductive block 44 is 100 °, and the angle between the clamping plate 45 and the conductive block 44 is changed to 90 ° after the screw-mounting screw cylinder 47 is screw-mounted on the outer side of the clamping plate 45.

The initial angle between cardboard 45 and the conducting block 44 is 100, and four sets of cardboard 45 expand to the outside, and the space between four sets of cardboard 45 is great, is convenient for throw into the inside in this space with pencil 3, along with this, with spiro union section of thick bamboo 47 spiro union on four sets of cardboard 45 for the space between four sets of cardboard 45 reduces, through four sets of locking piece 46, carries out the locking work to pencil 3.

The lightning arrester is arranged at the output port of the relay protection device to improve the lightning surge resistance of the relay protection device, the lightning arrester is not shown in the lightning arrester diagram, the purpose of lightning protection of the relay protection device is achieved by arranging the lightning arrester, the lightning arrester is a conventional means in the prior art, the necessary technical characteristics of protection are not disclosed in the scheme, and the repeated description is not unfolded.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lightning protection relay protection device, includes relay protection device casing (1), relay binding post (2) are all installed at the both ends of relay protection device casing (1), and relay binding post (2) and external pencil (3) electric connection, its characterized in that: the relay wiring terminal (2) is connected with an external wiring harness (3) through a fixedly connected anti-dragging assembly (4), a card (41) fixedly connected on the anti-dragging assembly (4) is screwed on the outer side face of the relay protection device shell (1) through two groups of screws, and an insulating frame (43) is fixed on the outer side of the card (41);

the inside fixed mounting conducting block (44) of insulating frame (43), and the one end and the conducting column (42) of conducting block (44) link to each other, and the one end and cardboard (45) that the conducting column (42) were kept away from to conducting block (44) link to each other simultaneously to cardboard (45) parcel is in the outside of pencil (3).

2. The lightning protection relay protection device according to claim 1, wherein: one end of the conductive column (42) is electrically connected with the relay wiring terminal (2), and the other end of the conductive column (42) is electrically connected with the wire harness (3) through the conductive block (44), the clamping plate (45) and the locking block (46).

3. The lightning protection relay protection device according to claim 1, wherein: the card (41) is of an L-shaped structure made of plastic materials, the insulating frame (43) on the card (41) is arranged in a shape like a Chinese character 'kou', and meanwhile, the card (41) is of a detachable structure.

4. The lightning protection relay protection device according to claim 1, wherein: the clamping plates (45) are uniformly provided with four groups on the conductive block (44), the outer sides of the four groups of clamping plates (45) are provided with screw structures (451), and meanwhile, the outer sides of the four groups of clamping plates (45) are fixedly connected through screw connection cylinders (47) in a screw mode, and eight groups of stress flanges (48) are uniformly fixed on the outer sides of the screw connection cylinders (47).

5. The lightning protection relay protection device of claim 4, wherein: the inner walls of the four groups of clamping plates (45) are fixedly connected with locking blocks (46), the four groups of locking blocks (46) are laterally clamped on the outer sides of the wire harnesses (3) in an inward moving mode, and the transverse section of each locking block (46) is trapezoidal.

6. The lightning protection relay protection device according to claim 1, wherein: the initial angle between the clamping plate (45) and the conductive block (44) is 100 degrees, and the angle between the clamping plate (45) and the conductive block (44) is changed to 90 degrees after the outside of the clamping plate (45) is in threaded connection with the threaded connection cylinder (47).