CN211907197U - Transformer core ground lead structure - Google Patents

Abstract

The utility model discloses a transformer core ground connection pin configuration relates to transformer ground connection technical field. The utility model discloses a transformer tank and earth connection, transformer tank's upper end fixedly connected with earth connection, fixedly connected with junction box on transformer tank's the left side wall, fixedly connected with insulator in proper order from top to bottom of the inside wall of junction box, the terminal upside wall that runs through the junction box of earth connection stretches into the inside of junction box, the earth connection with the insulator run through the lower lateral wall of junction box behind the fixed connection in proper order. The utility model discloses an insulator that sets up can be fixed with the earth connection, avoids the earth connection to appear rocking in the use to mounting panel on the insulator can change the position at will, makes the insulator can adjust according to the position of connecting hole on the earth connection, makes the connecting hole on insulator and the earth connection corresponding, avoids the earth connection to buckle, prolongs the life of earth connection.

Description

Transformer core ground lead structure

Technical Field

The utility model belongs to the technical field of transformer ground connection, especially, relate to a transformer core ground connection pin configuration.

Background

The iron core of the transformer needs to be grounded, for a large and medium-sized transformer, an iron core grounding lead is usually led to the lower part of the transformer for the convenience of users, the grounding lead has two structures of a power cable and a copper bus, and in order to ensure the safe and reliable operation of the transformer, more and more users prefer a copper bus grounding mode, and compared with the copper bus grounding lead, the copper bus grounding lead has a more complicated structure. Generally, the requirement of a grounding copper bus in an iron core grounding lead of a transformer is very accurate, because the grounding copper bus needs to be accurately matched with a supporting insulator and a bottom plate thereof, the copper bus in the grounding copper bus needs to be bent at multiple positions and is provided with a fixing hole, the design and manufacturing difficulty is invisibly increased, and because the installation size of the copper bus and the positioning size of the bottom plate are very easy to be out of tolerance or wrong, the copper bus cannot be matched with the insulator for installation, so that the transformer needs to be reworked or even manufactured again, thereby the installation progress of the transformer is influenced, the working efficiency is reduced, the manufacturing period is prolonged, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer core ground lead structure, through the insulator that sets up, can fix the earth connection, avoid the earth connection to appear rocking in the use to mounting panel on the insulator can change the position at will, make the insulator can adjust according to the position of connecting hole on the earth connection, make the insulator corresponding with the connecting hole on the earth connection, avoid the earth connection to buckle, solved current problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a transformer iron core grounding lead structure, which comprises a transformer oil tank and a grounding wire, wherein the upper end of the transformer oil tank is fixedly connected with the grounding wire, the left side wall of the transformer oil tank is fixedly connected with a junction box, the inner side wall of the junction box is fixedly connected with an insulator from top to bottom in sequence, the connecting part of the insulator and the grounding wire is arranged in the junction box, the insulator can be protected, the aging of the insulator caused by the environment is avoided, the service life of the insulator is prolonged, the tail end of the grounding wire penetrates through the upper side wall of the junction box and extends into the interior of the junction box, the grounding wire and the insulator are fixedly connected in sequence and then penetrate through the lower side wall of the junction box, the grounding wire can be fixed, the grounding wire is prevented from shaking in the using process, and the mounting plate on the insulator can be, make the insulator corresponding with the connecting hole on the earth connection, avoid the earth connection to buckle, the insulator includes mounting panel, insulator, first splint, second splint, first clamp splice and second clamp splice, the left surface fixedly connected with insulator of mounting panel, the first splint of left end fixedly connected with of insulator, the front and back both sides of the left surface of first splint are rotated respectively and are connected with the threaded rod, threaded connection has the movable block on the threaded rod, the upper end fixedly connected with knob of threaded rod, two fixedly connected with second splint between the movable block, the first clamp splice of left surface intermediate position department fixedly connected with of first splint, the right flank fixedly connected with of second splint matches the second clamp splice that uses with first clamp splice.

Furthermore, four corner position departments of second splint have a gag lever post through connection, the one end fixed connection that the gag lever post is close to first splint is on first splint, the other end fixedly connected with stopper of gag lever post for can remove according to the direction of gag lever post when second splint remove, avoid appearing the condition of dislocation between first clamp splice and the second clamp splice.

Further, an arc-shaped groove matched with the ground wire for use is formed in one side face, close to each other, of the first clamping block and the second clamping block, so that the ground wire can be matched with the first clamping block and the second clamping block, a protective pad is fixedly bonded to the side wall of the arc-shaped groove, the ground wire can be protected when the protective pad is used, and the ground wire is prevented from being damaged.

Furthermore, the left side surface of the junction box is rotatably connected with a box door through a hinge, the box door is fixedly connected with a door lock matched with the junction box for use, and the box door is fixedly connected with a door handle.

Furthermore, threaded holes are formed in the positions of the four corners of the mounting plate, and an anti-slip pad is fixedly bonded to one side face, in contact with the junction box, of the mounting plate, so that the insulator can be changed in position at will, and can be matched with a grounding wire to use.

Further, the heat dissipation hole has evenly been seted up on the lower lateral wall of junction box, can discharge the heat in the junction box fast, the fixed stagnant water strip that bonds in downside border position department of junction box prevents that the rainwater from entering into the junction box through the heat dissipation hole along the lateral wall under the junction box in.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up the insulator, can fix the earth connection, avoid the earth connection to appear rocking in the use, and the mounting panel on the insulator can change the position at will, make the insulator can adjust according to the position of connecting hole on the earth connection, make the insulator corresponding with the connecting hole on the earth connection, avoid the earth connection to buckle, and set up the position of being connected of insulator and earth connection in the junction box, can protect the insulator, avoid it to receive the environmental impact ageing, prolong the life of insulator.

2. The utility model discloses a rotate the knob and can adjust the second splint, and then adjust the distance between first clamp splice and the second clamp splice for the insulator can be applicable to the earth connection of different models, enlarges its application scope.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall structure of a transformer core ground lead structure according to the present invention;

fig. 2 is a schematic diagram of an insulator front view structure of a transformer core ground lead structure according to the present invention;

fig. 3 is a schematic view of a top view structure of an insulator of a transformer core ground lead structure according to the present invention;

fig. 4 is a left side view structural diagram of an insulator of the transformer core ground lead structure of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a transformer tank; 2. a ground line; 3. a junction box; 4. an insulator; 401. mounting a plate; 402. a porcelain bushing; 403. a first splint; 404. a second splint; 405. a threaded rod; 406. a moving block; 407. a knob; 408. a first clamping block; 409. a second clamp block; 410. a limiting rod; 411. a limiting block; 5. a box door; 6. a door lock; 7. a door handle; 8. heat dissipation holes; 9. a water stop strip.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the utility model relates to a transformer core grounding lead structure, which comprises a transformer oil tank 1 and a grounding wire 2, wherein the upper end of the transformer oil tank 1 is fixedly connected with the grounding wire 2, the left side wall of the transformer oil tank 1 is fixedly connected with a junction box 3, the inner side wall of the junction box 3 is sequentially and fixedly connected with an insulator 4 from top to bottom, the position of the insulator 4 can be changed according to requirements, so that the insulator can be matched with the grounding wire 2 for use and convenient connection, the tail end of the grounding wire 2 penetrates through the upper side wall of the junction box 3 and extends into the junction box 3, a rubber gasket is fixedly arranged at the position of the junction box 3 contacted with the grounding wire 2 so as to protect the outer side wall of the grounding wire 2, the grounding wire 2 and the insulator 4 penetrate through the lower side wall of the junction box 3 after being sequentially and fixedly, fixedly connected with matches lock 6 that uses with junction box 3 on chamber door 5, through lock 6 alright with chamber door 5 and 3 fixed connection of junction box together, the convenience links together earth connection 2 and insulator 4, fixedly connected with door handle 7 on chamber door 5, louvre 8 has evenly been seted up on the lower lateral wall of junction box 3, so that the heat in the junction box 3 is dispelled fast in the use, the fixed bonding of downside border position department of junction box 3 has waterstop 9, prevent that the rainwater from entering into in the junction box 3.

As shown in fig. 2-4, the insulator 4 includes a mounting plate 401, a porcelain bushing 402, a first clamping plate 403, a second clamping plate 404, a first clamping block 408 and a second clamping block 409, the left side surface of the mounting plate 401 is fixedly connected with the porcelain bushing 402, the left end of the porcelain bushing 402 is fixedly connected with the first clamping plate 403, the front and rear sides of the left side surface of the first clamping plate 403 are respectively and rotatably connected with a threaded rod 405, a moving block 406 is connected to the threaded rod 405 in a threaded manner, a knob 407 is fixedly connected to the upper end of the threaded rod 405, the second clamping plate 404 is fixedly connected between the two moving blocks 406, the first clamping block 408 is fixedly connected to the middle position of the left side surface of the first clamping plate 403, the second clamping block 409 is fixedly connected to the right side surface of the second clamping plate 404, the threaded rod 405 can be driven to rotate by rotating the knob 407, and the second clamping plate 404 is driven to move left and right, so as to adjust the distance between, first clamp splice 408 and second clamp splice 409 use mutually to cooperate alright fix earth connection 2 on insulator 4, the installation of earth connection 2 has just been accomplished, four corner position departments of second splint 404 have a gag lever post 410, the one end fixed connection that gag lever post 410 is close to first splint 403 is on first splint 403, the other end fixedly connected with stopper 411 of gag lever post 410, the setting of gag lever post 410 can guide the moving direction of second splint 404, make first clamp splice 408 and second clamp splice 409 control alignment all the time.

Wherein as shown in fig. 2-3, an arc-shaped groove matched with the grounding wire 2 for use is all provided on a side face of the first clamping block 408 and the second clamping block 409 which are close to each other, so that the first clamping block 408 and the second clamping block 409 can be attached to the grounding wire 2, so that the friction between the grounding wire 2 and the first clamping block 408 and the second clamping block 409 is increased, the installation is firmer, a protective pad is fixedly bonded on the side wall of the arc-shaped groove, threaded holes are provided at the four corners of the mounting plate 401, and a non-slip pad is fixedly bonded on a side face of the mounting plate 401 which is in contact with the junction box 3.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.

Claims (6)

1. The utility model provides a transformer core ground connection pin configuration, includes transformer tank (1) and earth connection (2), its characterized in that: the upper end of the transformer oil tank (1) is fixedly connected with a grounding wire (2), the left side wall of the transformer oil tank (1) is fixedly connected with a junction box (3), the inner side wall of the junction box (3) is fixedly connected with insulators (4) from top to bottom in sequence, the tail end of the grounding wire (2) penetrates through the upper side wall of the junction box (3) and extends into the junction box (3), the grounding wire (2) and the insulators (4) are fixedly connected in sequence and then penetrate through the lower side wall of the junction box (3), the insulators (4) comprise mounting plates (401), porcelain sleeves (402), first clamping plates (403), second clamping plates (404), first clamping blocks (408) and second clamping blocks (409), the left side face of the mounting plates (401) is fixedly connected with the porcelain sleeves (402), the left end of the porcelain sleeves (402) is fixedly connected with the first clamping plates (403), threaded rods (405) are respectively rotatably connected with the front side face and the back side face of the first clamping plates (, the threaded rod (405) is connected with moving blocks (406) in a threaded mode, the upper end of the threaded rod (405) is fixedly connected with a knob (407), a second clamping plate (404) is fixedly connected between the two moving blocks (406), a first clamping block (408) is fixedly connected to the middle position of the left side face of the first clamping plate (403), and a second clamping block (409) matched with the first clamping block (408) in use is fixedly connected to the right side face of the second clamping plate (404).

2. The transformer core grounding lead structure according to claim 1, wherein limiting rods (410) are penetratingly connected to four corner positions of the second clamping plate (404), one end of each limiting rod (410) close to the first clamping plate (403) is fixedly connected to the first clamping plate (403), and the other end of each limiting rod (410) is fixedly connected to a limiting block (411).

3. The transformer core grounding lead structure according to claim 1, wherein an arc-shaped groove matched with a grounding wire (2) is formed in one side surface of the first clamping block (408) and the second clamping block (409) close to each other, and a protective pad is fixedly bonded to the side wall of the arc-shaped groove.

4. The transformer core grounding lead structure according to claim 1, characterized in that a box door (5) is rotatably connected to the left side surface of the connection box (3) through a hinge, a door lock (6) matched with the connection box (3) is fixedly connected to the box door (5), and a door handle (7) is fixedly connected to the box door (5).

5. The transformer core grounding lead structure according to claim 1, characterized in that threaded holes are formed at four corners of the mounting plate (401), and a non-slip mat is fixedly bonded to one side surface of the mounting plate (401) contacting with the connection box (3).

6. The transformer core grounding lead structure according to claim 1, wherein heat dissipation holes (8) are uniformly formed in the lower side wall of the connection box (3), and a water stop strip (9) is fixedly bonded to the edge of the lower side surface of the connection box (3).

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