Protective transformer iron core

Abstract

The utility model relates to the technical field of transformer iron core protection, and discloses a protection type transformer iron core which comprises an iron core body, a protection shell covers the outer portion of the iron core body, and a wiring terminal on the iron core body penetrates through the protection shell and extends out. The fixed seat is fixedly connected to the top surface of the protective shell, a through hole is formed in the fixed seat, the part, extending out of the protective shell, of the wiring terminal is arranged in the through hole in a penetrating manner, and a gap is formed between the wiring terminal and the inner wall surface of the through hole; the gap is filled with the sealing gasket, and the top of the sealing gasket extends out of the fixed seat; and the connecting seat sleeves the wiring terminal and is in threaded connection with the fixing seat, and one side, close to the fixing seat, of the connecting seat abuts against the part, extending out of the fixing seat, of the sealing gasket. The waterproof sealing time of the transformer iron core can be effectively prolonged, and the protection effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer core protection technical field, in particular to a protective transformer core. BACKGROUND

[0002] The transformer core is the main component of the transformer, which is a device for changing AC voltage by using the principle of electromagnetic induction, mainly used for voltage transformation, current transformation, impedance transformation, isolation and voltage stabilization, etc. During the use of the transformer core, it is directly exposed to the outside, so in order to improve its service life, a protective device is needed.

[0003] In the prior art, such as a transformer core protection structure in patent number CN221632382U, a sealing block is installed on the outside of the joint, and the sealing block is fixed to the upper end of the fixed block, thereby sealing the gap between the joint and the fixed block, preventing the installation joint of the high-voltage joint from leaking water. However, the sealing block is usually made of insulating rubber material, and the existing technology directly exposes the sealing block to the outside. With long-term use, the sealing block weathering hardens, and its sealing structure produces cracks, resulting in poor sealing and protection effect on the transformer core. Therefore, the present patent proposes a protective transformer core to solve the above problems. SUMMARY

[0004] The utility model aims at providing a protective transformer core to solve the problems existing in the prior art, effectively prolonging the waterproof sealing time of the transformer core and improving the protection effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a protective transformer core, which comprises:

[0006] The core body is provided with a protective shell outside, and the wiring terminal on the core body penetrates the protective shell and extends out;

[0007] The fixed seat is fixed to the top surface of the protective shell, a through hole is formed in the fixed seat, the part of the wiring terminal extending out of the protective shell is arranged in the through hole, and a gap is arranged between the wiring terminal and the inner wall surface of the through hole;

[0008] The sealing gasket is filled in the gap, and the top of the sealing gasket extends out of the fixed seat;

[0009] The connecting seat is sleeved on the wiring terminal and is threadedly connected with the fixed seat, and the side of the connecting seat close to the fixed seat abuts against the part of the sealing gasket extending out of the fixed seat.

[0010] Preferably, a step is formed at the top end of the through hole along the rim, the part of the sealing gasket extending out of the fixing seat is filled in the step, and the top end of the sealing gasket extends out of the step in the vertical direction.

[0011] Preferably, a thread is formed on the outer circumferential side of the fixing seat, a thread groove is formed on the bottom surface of the connecting seat, and the inner wall of the top end of the thread groove abuts against the sealing gasket.

[0012] Preferably, the sealing gasket is annular in structure and is sleeved on the outer circumferential side of the terminal, and the terminal is connected to the fixing seat in interference through the sealing gasket.

[0013] Preferably, the top part of the connecting seat is inverted conical in structure, and a plastic coating is wrapped between the connecting seat and the terminal.

[0014] Preferably, the fixing seat is T-shaped in structure, the bottom part of the fixing seat is the end with the largest diameter, and the connecting seat is threadedly connected to the top part of the fixing seat.

[0015] The utility model discloses the following technical effects:

[0016] The utility model discloses the following technical effects: BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0018] Fig. 1 It is the connecting relation diagram of protective shell and terminal in the utility model;

[0019] Fig. 2 It is the position relation diagram of iron core body and protective shell in the utility model;

[0020] Fig. 3The utility model discloses a fixed seat and the structure section view of connecting seat for the utility model;

[0021] Wherein, 1, iron core main part;2, protective housing;3, wiring terminal;4, fixed seat;5, connecting seat;6, sealing gasket;7, step;8, plastic layer. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0023] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in conjunction with the drawings and specific implementation.

[0024] Refer to Figs. 1-3 The utility model provides a kind of protective transformer iron core, comprising:

[0025] Iron core main part 1, external cover is equipped with protective housing 2, wiring terminal 3 on iron core main part 1 is passed through protective housing 2 and is projected;

[0026] Fixed seat 4 is fixedly connected in protective housing 2 top surface, and through hole is set in fixed seat 4, and the part of wiring terminal 3 that projects protective housing 2 is arranged in through hole, and gap is set between wiring terminal 3 and the inner wall surface of through hole;

[0027] Sealing gasket 6 is filled in gap, and the top of sealing gasket 6 projects fixed seat 4;

[0028] Connecting seat 5 is sleeved on wiring terminal 3, and is connected with fixed seat 4 by screw, and the side of connecting seat 5 close to fixed seat 4 is abutted with the part of sealing gasket 6 that projects fixed seat 4.

[0029] The utility model discloses a fixed seat 4 and terminal 3 between filling sealing washer 6, utilize sealing washer 6 and seal the gap between terminal 3 and fixed seat 4, thereby seal the gap between iron core main part 1 and protective housing 2, provide waterproof protection for transformer iron core, in addition, by the top of sealing washer 6 is out of fixed seat 4, and by setting up the threaded connection of connecting seat 5 and fixed seat 4, utilize connecting seat 5 extrude sealing washer 6 and out of the top of fixed seat 4, thereby provide pressure effect to sealing washer 6, make sealing washer 6 fill the sealing effect of gap enhancement, simultaneously, after long -time use, when sealing washer 6 hardening produces structural crack, because sealing washer 6 is under the extrusion force, make sealing washer 6 still can effectively seal the gap, realize the time effect of extension sealing washer 6 waterproof sealing to iron core main part 1.

[0030] The terminal 3 in the technical scheme is a high-voltage connector connected to the iron core main body 1 for power supply.

[0031] Further, a step 7 is arranged at the top end of the through hole, and the part of the sealing washer 6 extending out of the fixed seat 4 is filled in the step 7, and the top end of the sealing washer 6 extends out of the step 7 in the vertical direction.

[0032] By arranging the step 7 on the fixed seat 4, the filling area of the sealing washer 6 is increased, and when the connecting seat 5 extrudes the top end of the sealing washer 6, the sealing washer 6 can extend along the step 7, the sealing area is increased, and the sealing washer 6 can still provide sealing effect when it is hardened and structural shrinkage occurs.

[0033] Further, a screw thread is arranged on the outer periphery of the fixed seat 4, a screw groove is arranged on the bottom surface of the connecting seat 5, and the inner wall of the top end of the screw groove abuts against the sealing washer 6.

[0034] By screwing the connecting seat 5 and the fixed seat 4, the stability of the connection is enhanced, the extrusion force of the mutual approach is provided, and the sealing washer 6 is directly acted on.

[0035] Further, the sealing washer 6 is annular and is sleeved on the outer periphery of the terminal 3, and the terminal 3 is connected to the fixed seat 4 in interference.

[0036] The sealing washer 6 is sleeved on the terminal 3, the extrusion effect of the connecting seat 5 and the fixed seat 4 is combined, the connection strength of the terminal 3 and the fixed seat 4 is enhanced, and the interference connection is formed.

[0037] Further, the top of the connecting seat 5 is in inverted conical structure, and a plastic coating layer 8 is arranged between the connecting seat 5 and the terminal 3.

[0038] The plastic coating layer 8 is used to coat the connecting seat 5 and the terminal 3, which not only enhances the stability of the threaded connection between the connecting seat 5 and the fixed seat 4, but also seals the gap between the connecting seat 5 and the terminal 3.

[0039] Specifically, the plastic coating layer 8 can adopt a TPU pipe with thermoplasticity, after being sleeved between the connecting seat 5 and the terminal 3, the TPU pipe structure is shrunk by heating, so as to fit the terminal 3 and the connecting seat 5 to form the plastic coating layer 8.

[0040] Further, the fixing seat 4 is a T-shaped structure, the bottom of the fixing seat 4 is the largest diameter end, and the connecting seat 5 is threadedly connected with the top of the fixing seat 4.

[0041] The fixing area with the protective shell 2 is enhanced through the bottom of the fixing seat 4, the connecting strength is improved, meanwhile, the small diameter end of the fixing seat 4 is threadedly connected with the threaded groove on the bottom surface of the connecting seat 5, so that the installation is facilitated.

[0042] The working principle of the protective transformer core is as follows:

[0043] The protective shell 2 is covered on the core body 1, the fixing seat 4 is fixed on the top of the protective shell 2, the terminal 3 is inserted into the through hole of the fixing seat 4, and is connected with the core body 1 in power supply, the sealing gasket 6 is sleeved on the terminal 3, in the process of inserting the terminal 3 into the through hole, the sealing gasket 6 is extruded to fill the gap between the terminal 3 and the fixing seat 4, and the sealing gasket 6 is embedded in the step 7, the connecting seat 5 is connected through the thread, when the connecting seat 5 is screwed, the connecting seat 5 abuts against the top of the sealing gasket 6, so that the sealing gasket 6 is unfolded in the step 7, meanwhile, the terminal 3 is connected with the inner wall of the through hole of the fixing seat 4 in interference fit, after the connecting seat 5 is screwed, the plastic coating layer 8 is sleeved on the connecting seat 5 and the terminal 3, the plastic coating layer 8 is heated by the air heater, after the plastic coating layer 8 is fitted on the terminal 3 and the connecting seat 5, the sealing protection of the transformer core is completed.

[0044] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0045] The above-described embodiments are only used to describe the preferred modes of the utility model, and do not limit the scope of the utility model, under the premise that the design spirit of the utility model is not departed from, various deformations and improvements on the technical scheme of the utility model made by the ordinary skilled in the art should fall into the protection scope determined by the claim of the utility model.

Claims

1. A shielded transformer core, characterized by The utility model relates to an iron core main body (1) is provided with protective housing (2) outside cover, wiring terminal (3) on the iron core main body (1) penetrates the protective housing (2) and extends out, fixed seat (4) is fixedly connected on the top surface of protective housing (2), and the fixed seat (4) is provided with through -hole, and the part of wiring terminal (3) extending out of protective housing (2) is arranged in the through -hole, and the gap between wiring terminal (3) and the inner wall surface of through -hole is provided, sealing gasket (6) is filled in the gap, and the top of sealing gasket (6) extends out of fixed seat (4), connecting seat (5) is sleeved on wiring terminal (3) and is connected with fixed seat (4) screwy, and the side of connecting seat (5) near fixed seat (4) is abutted with the part of sealing gasket (6) extending out of fixed seat (4). The top end of the through -hole is provided with step (7) along the mouth, and the part of sealing gasket (6) extending out of fixed seat (4) is filled in step (7), and the top end of sealing gasket (6) extends out of step (7) in the vertical direction. The outer circumferential side of fixed seat (4) is provided with screw thread, and the bottom surface of connecting seat (5) is provided with screw groove, and the inner wall of the top end of screw groove is abutted with sealing gasket (6). The sealing gasket (6) is annular structure, and is sleeved on the outer circumferential side of the wiring terminal (3), and the wiring terminal (3) is connected with the fixed seat (4) by the sealing gasket (6) interference. The top of connecting seat (5) is inverted conical structure, and the plastic layer (8) is covered between connecting seat (5) and wiring terminal (3).

2. The shielded transformer core of claim 1, wherein: The fixed seat (4) is T-shaped structure, the bottom of fixed seat (4) is the maximum diameter end, and the top of connecting seat (5) is screwy connected with fixed seat (4).

3. The shielded transformer core of claim 1, wherein: ​ 4. The shielded transformer core of claim 1, wherein: ​ 5. The shielded transformer core of claim 1, wherein: ​ 6. The shielded transformer core of claim 1, wherein: ​

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