Low-power-consumption dry-type transformer

Abstract

The utility model relates to the technical field of dry-type transformers, in particular to a low-power-consumption dry-type transformer which comprises a dry-type transformer body, a supporting mechanism installed on the dry-type transformer body, an arc cleaning mechanism movably installed on the supporting mechanism and a wire clamping mechanism installed on the arc cleaning mechanism. The supporting mechanism comprises a bearing outer rail and a bearing inner rail located on the inner side of the bearing outer rail, and the arc cleaning mechanism comprises a base movably installed in a gap between the bearing outer rail and the bearing inner rail and a bottom-arranged base located on the top of the base. The two clamps are used for positioning and clamping a wire on the dry-type transformer, the multiple vertical rods located outside the two insulating shells can transmit an electric field and electric arcs around the dry-type transformer, and finally transmitted current can be conducted to the ground. Therefore, the lead on the dry-type transformer cannot be aged due to the sharp increase of the electric field intensity and the rising of the temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a low-power consumption dry-type transformer. Background Art

[0002] Dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. They are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc.

[0003] At present, during the operation of dry-type transformers, the surrounding environment of the transformer will have an impact on the insulating material. The insulating material in the dry-type transformer will tend to soften under the interference of electric field strength, heat and arc. At the same time, it will be disturbed by various corrosive factors in the air. The softened insulating material will age, and in severe cases, the insulation layer will be broken down.

[0004] For the insulation components of dry-type transformers, how to prevent the insulation components from softening due to electric field or arc interference, and then being broken down, is a technical difficulty that needs to be solved. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A low-power dry-type transformer comprises a dry-type transformer, a supporting mechanism installed on the dry-type transformer, an arc-clearing mechanism movably installed on the supporting mechanism, and a wire clamping mechanism installed on the arc-clearing mechanism, wherein the supporting mechanism comprises a bearing outer rail and a bearing inner rail located inside the bearing outer rail, the arc-clearing mechanism comprises a base movably installed in a gap between the bearing outer rail and the bearing inner rail, a bottom base located on the top of the base, a gasket located at the bottom of the base, a top base located directly above the bottom base, a transfer clamping seat installed in the top base, a plurality of clamping plates connected in the bottom base and the top base, a vertical rod installed between two adjacent clamping plates, and a flow guide component movably installed outside the vertical rod, and the wire clamping mechanism comprises two insulating shells installed between the bottom base and the top base, a sealing cover movably installed in the outer end tubes of the two insulating shells, a compression washer installed on the inner side of the insulating shell, and a clamp connected inside the insulating shell.

[0008] In a preferred example, the utility model can be further configured as follows: the support mechanism also includes a plurality of load-bearing sleeves located at the bottom of the load-bearing outer rail and the load-bearing inner rail, a bracket located at the bottom of two adjacent load-bearing sleeves, a latch movably installed at the inner end of the bracket, and a combination bolt movably installed inside the bracket and the load-bearing sleeve.

[0009] In a preferred example, the utility model can be further configured as follows: the load-bearing outer rail and the load-bearing inner rail are made of stainless steel material, and the outside of the load-bearing outer rail and the load-bearing inner rail are coated with an insulating paint layer, four main clamps are fixedly installed on the inner wall of the load-bearing outer rail, and four auxiliary clamps are fixedly installed on the outer wall of the load-bearing inner rail.

[0010] In a preferred example, the utility model can be further configured as follows: the top of the bottom base and the bottom of the top base are both provided with annular grooves adapted to be clamped in two insulating shell ports, and the outside of the bottom base and the top base are provided with slots distributed in a circumference.

[0011] In a preferred example, the utility model can be further configured as follows: the adapter clamp seat is made of thickened plastic, and a plurality of lead wire conduits are installed on the tube wall at the top of the adapter clamp seat.

[0012] In a preferred example, the utility model can be further configured as follows: the guide component is composed of a semicircular conductive ring and a steel cable, and a vertical hole adapted to the vertical rod is opened inside the semicircular conductive ring.

[0013] In a preferred example, the utility model can be further configured as follows: a plurality of column heads are installed on the outside of the insulating shell, and the end rods on the outside of the clamp are adapted to penetrate the outside of the column heads.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] 1. The utility model uses two clamps to position and clamp the wires on the dry-type transformer, and multiple vertical rods located outside the two insulating shells can transmit the electric field and arc around the dry-type transformer, and finally conduct the transmitted current to the ground, thereby ensuring that the wires on the dry-type transformer will not age due to the surge in electric field strength and the increase in temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model when in use;

[0017] Figure 2 It is a schematic diagram of the support mechanism of the utility model;

[0018] Figure 3 It is a dispersed schematic diagram of the support mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the arc clearing mechanism of the utility model;

[0020] Figure 5 It is a scattered schematic diagram of the wire clamping mechanism of the utility model;

[0021] Figure 6 It is a schematic diagram of the internal dispersion of the arc clearing mechanism of the utility model.

[0022] Reference numerals:

[0023] 100. Dry-type transformer;

[0024] 200, support mechanism; 210, bracket; 220, latch; 230, load-bearing sleeve; 240, load-bearing outer rail; 250, load-bearing inner rail; 260, combination bolt;

[0025] 300, arc clearing mechanism; 310, base; 320, gasket; 330, bottom base; 340, adapter clamp; 350, top base; 360, clamp; 370, vertical rod; 380, guide assembly;

[0026] 400, wire clamping mechanism; 410, insulating housing; 420, sealing cover; 430, compression washer; 440, clamp. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0029] A low-power dry-type transformer provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] Combination Figure 1-Figure 6 As shown, the utility model provides a low-power dry-type transformer, including a dry-type transformer 100, characterized by a support mechanism 200 installed on the dry-type transformer 100, an arc-clearing mechanism 300 movably installed on the support mechanism 200, and a wire clamping mechanism 400 installed on the arc-clearing mechanism 300;

[0032] The supporting mechanism 200 includes a bracket 210, a latch 220, a load-bearing sleeve 230, a load-bearing outer rail 240, a load-bearing inner rail 250 and a combination bolt 260. The arc clearing mechanism 300 includes a base 310, a gasket 320, a bottom base 330, an adapter clamp seat 340, a top base 350, a clamp 360, a vertical rod 370 and a guide assembly 380. The wire clamping mechanism 400 includes an insulating shell 410, a sealing cover 420, a compression washer 430 and a clamp 440.

[0033] Specifically, the inner bearing rail 250 is located on the inner side of the outer bearing rail 240, a plurality of bearing sleeves 230 are located at the bottom of the outer bearing rail 240 and the inner bearing rail 250, the bracket 210 is located at the bottom of two adjacent bearing sleeves 230, the latch 220 is movably mounted on the inner end of the bracket 210, the combination bolt 260 is movably mounted inside the bracket 210 and the bearing sleeve 230, the base 310 is movably mounted in the gap between the outer bearing rail 240 and the inner bearing rail 250, the bottom base 330 is located at the top of the base 310, the gasket 320 is located at the bottom of the base 310, and the top base 310 is movably mounted in the gap between the outer bearing rail 240 and the inner bearing rail 250. 50 is located directly above the bottom base 330, the adapter clamp seat 340 is installed in the top base 350, a plurality of clamps 360 are connected in the bottom base 330 and the top base 350, the vertical rod 370 is installed between two adjacent clamps 360, the guide assembly 380 is movably installed on the outside of the vertical rod 370, two insulating shells 410 are installed between the bottom base 330 and the top base 350, the sealing cover 420 is movably installed in the end tube outside the two insulating shells 410, the compression gasket 430 is installed on the inner side of the insulating shell 410, and the clamp 440 is connected to the inside of the insulating shell 410.

[0034] A plurality of clamps 440 are evenly installed inside the two insulating shells 410, and a plurality of compression washers 430 are movably installed in the end tubes outside the two insulating shells 410, and a bottom base 330 and a top base 350 are respectively installed at the bottom and the top of the two insulating shells 410, and a plurality of clamps 360 are fixedly installed in the slots in the bottom base 330 and the top base 350 by using a plurality of locking bolts. When a plurality of vertical rods 370 are installed between the plurality of groups of clamps 360, as the wires on the dry-type transformer 100 are positioned and clamped by the two clamps 440 and insulated and protected by the two insulating shells 410, the plurality of vertical rods 370 located outside the two insulating shells 410 can transmit the electric field and arc around the dry-type transformer 100, and finally conduct the transmitted current to the ground, thereby ensuring that the wires on the dry-type transformer 100 will not age due to the surge in electric field strength and the increase in temperature, thereby avoiding the problem of the aged wires being broken down due to aging.

[0035] Embodiment 2:

[0036] Combination Figure 1-Figure 3 As shown, on the basis of Example 1, the bearing outer rail 240 and the bearing inner rail 250 are made of stainless steel material, and the outside of the bearing outer rail 240 and the bearing inner rail 250 are coated with an insulating paint layer, and four main clamps are fixedly installed on the inner wall of the bearing outer rail 240, and four auxiliary clamps are fixedly installed on the outer wall of the bearing inner rail 250.

[0037] The combined load-bearing outer rail 240 and the load-bearing inner rail 250 are installed on the crossbeam at the bottom of the dry-type transformer 100 by using four brackets 210 and four latches 220. At this time, the load-bearing outer rail 240 and the load-bearing inner rail 250 symmetrically distributed along the horizontal state can provide a sufficiently stable load-bearing capacity for the rod body at the bottom of the base 310. As the base 310 moves along the gap between the load-bearing outer rail 240 and the load-bearing inner rail 250, the wires on the dry-type transformer 100 can be selectively clamped by the arc clearing mechanism 300 and the wire clamping mechanism 400 to ensure that the wires on the dry-type transformer 100 can be protectively wrapped, and the insulation layer of the wire can be prevented from being broken down by the electric field or arc.

[0038] Embodiment three:

[0039] Combination Figure 4-Figure 6 As shown, on the basis of the first embodiment, the top of the bottom base 330 and the bottom of the top base 350 are provided with annular grooves adapted to be clamped in the ports of the two insulating shells 410, and the outside of the bottom base 330 and the top base 350 are provided with slots distributed in a circular pattern, a plurality of column heads are installed on the outside of the insulating shell 410, and the end rods on the outside of the clamp 440 are adapted to pass through the outside of the column heads.

[0040] By installing the top base 350 and the bottom base 330 on the top and bottom ends of the two insulating shells 410 respectively, the multiple sealing covers 420 movably installed on the external end tubes of the two insulating shells 410 can seal the unintroduced wires. At this time, the sealed inner cavities of the two insulating shells 410 can protect the clamped wires. At this time, the electric field or arc existing in the environment around the dry-type transformer 100 can prevent the insulation layer of the wire from being disturbed, thereby preventing the insulation layer of the wire from softening and being broken down due to continuous temperature rise in the environment.

[0041] Embodiment 4:

[0042] Combination Figure 1-Figure 6 As shown, based on the first embodiment, the adapter clamp seat 340 is made of thickened plastic, and a plurality of wire guide tubes are installed on the tube wall at the top of the adapter clamp seat 340. The guide assembly 380 is composed of a semicircular conductive ring and a steel cable, and a vertical hole adapted to the vertical rod 370 is opened inside the semicircular conductive ring.

[0043] By opening a plurality of lead-in ducts on the adapter clamp seat 340, when the wires on the dry-type transformer 100 enter the inner cavities of the two insulating shells 410 along the inner sides of the two clamps 440, the wire ends extending from the inner cavities of the two clamps 440 toward the inside of the adapter clamp seat 340 can be selectively extended outward from one of the lead-in ducts. At this time, the device can provide a multi-directional transfer path for the outer end of the wire, thereby ensuring that the part of the wire close to the dry-type transformer 100 can be protected against breakdown.

[0044] The working principle and use process of the utility model are as follows: a plurality of clamps 360 are respectively fixedly installed in the slots inside the bottom base 330 and the top base 350 by using a plurality of locking bolts in advance, and then the base 310 is penetrated to the rod body inside the bottom base 330 by using sub-bolts to fix it, and the tube body at the bottom of the adapter clamp seat 340 is fixedly installed in the vertical hole in the middle of the top base 350, and a plurality of clamps 440 are respectively installed in the inner cavity of the two insulating shells 410. At this time, after the two adjacent clamps 440 are docked, the guided wires will be adapted and clamped, and then the wires to be connected on the dry-type transformer 100 will be clamped on the inner sides of the two clamps 440, and the end of the wire away from the dry-type transformer 100 is stretched outward from the inside of the two insulating shells 410 until the other end of the wire is passed out from the inside of the adapter clamp seat 340;

[0045] When in use, the operator needs to use a fixing bolt to fix the gasket 320 to the bottom of the base 310. At this time, the base 310 and the gasket 320 will be located in the gap between the load-bearing outer rail 240 and the load-bearing inner rail 250, and the four brackets 210 will be fixed by the pins 220 in the crossbeam at the bottom of the dry-type transformer 100, and the multiple vertical rods 370 installed between the multiple groups of clamps 360 will surround the outside of the two insulating shells 410. When there is an arc or electric field around the dry-type transformer 100, the multiple vertical rods 370 can actively transfer the arc around the dry-type transformer 100, and the current finally transferred will flow to the ground along the steel cable on the guide assembly 380. At this time, the wires connected to the dry-type transformer 100 can be protected in an arc-free environment.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A low-power dry-type transformer, comprising a dry-type transformer (100), characterized in that: A support mechanism (200) mounted on a dry-type transformer (100), an arc-clearing mechanism (300) movably mounted on the support mechanism (200), and a wire clamping mechanism (400) mounted on the arc-clearing mechanism (300); The support mechanism (200) comprises a load-bearing outer rail (240) and a load-bearing inner rail (250) located inside the load-bearing outer rail (240); The arc clearing mechanism (300) comprises a base (310) movably mounted in a gap between a load-bearing outer rail (240) and a load-bearing inner rail (250), a bottom base (330) located at the top of the base (310), a gasket (320) located at the bottom of the base (310), a top base (350) located directly above the bottom base (330), a transfer clamp (340) mounted in the top base (350), a plurality of clamps (360) connected in the bottom base (330) and the top base (350), a vertical rod (370) mounted between two adjacent clamps (360), and a flow guide assembly (380) movably mounted outside the vertical rod (370); The wire clamping mechanism (400) comprises two insulating shells (410) installed between a bottom base (330) and a top base (350), a sealing cover (420) movably installed in the outer end tubes of the two insulating shells (410), a compression washer (430) installed on the inner side of the insulating shell (410), and a clamp (440) connected to the inside of the insulating shell (410).

2. A low-power dry-type transformer according to claim 1, characterized in that: The support mechanism (200) further comprises a plurality of load-bearing sleeves (230) located at the bottom of the load-bearing outer rail (240) and the load-bearing inner rail (250), a bracket (210) located at the bottom of two adjacent load-bearing sleeves (230), a latch (220) movably mounted at the inner end of the bracket (210), and a combination bolt (260) movably mounted inside the bracket (210) and the load-bearing sleeves (230).

3. A low-power dry-type transformer according to claim 1, characterized in that: The load-bearing outer rail (240) and the load-bearing inner rail (250) are made of stainless steel, and the outer surfaces of the load-bearing outer rail (240) and the load-bearing inner rail (250) are coated with an insulating paint layer; Four main clamps are fixedly mounted on the inner wall of the load-bearing outer rail (240); Four auxiliary clamps are fixedly mounted on the outer wall of the load-bearing inner rail (250).

4. A low-power dry-type transformer according to claim 1, characterized in that: The top of the bottom base (330) and the bottom of the top base (350) are both provided with annular grooves adapted to be clamped in the ports of the two insulating shells (410), and the outsides of the bottom base (330) and the top base (350) are provided with slots distributed in a circumference.

5. A low-power dry-type transformer according to claim 1, characterized in that: The adapter clamp seat (340) is made of thickened plastic, and a plurality of guide wire conduits are installed on the tube wall at the top of the adapter clamp seat (340).

6. A low-power dry-type transformer according to claim 1, characterized in that: The flow guide component (380) is composed of a semicircular conductive ring and a steel cable, and a vertical hole adapted to the vertical rod (370) is provided inside the semicircular conductive ring.

7. A low-power dry-type transformer according to claim 1, characterized in that: A plurality of column heads are installed on the outside of the insulating housing (410), and the end rods on the outside of the clamp (440) are adapted to penetrate the outside of the column heads.

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