Large-size mutual inductor local cooling gel tool

Abstract

The utility model discloses a large-volume mutual inductor local cooling gel tool which comprises a mold arranged in a drying oven, the upper portion of the side wall of the mold is fixedly connected with a cavity tool, the upper portion of the side wall of the cavity tool is communicated with a water inlet pipe, the bottom of the side wall of the cavity tool is communicated with a water outlet pipe, and the water outlet pipe is communicated with a water inlet pipe. The water outlet pipe and the water inlet pipe are both provided with valves, a mutual inductor body is arranged in the mold, and the mold is filled with resin mixed glue. According to the local cooling gel tool for the large-size mutual inductor, the cavity tool is fixed to the surface of the mold, after water flow is injected into the cavity tool, the upper portion of the mold can be cooled through heat exchange, the upper portion of the mold is gelling later than the middle portion and the lower portion of the mold, and after the middle portion and the lower portion of the mold are solidified, if air is empty, the mold can be cooled; and the upper material can permeate downwards to fill air gaps and air cavities, so that the finished product quality of the large-volume mutual inductor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of large volume mutual inductor, specifically to a large volume mutual inductor local cooling gel tool. BACKGROUND

[0002] Large volume mutual inductor usually refers to the mutual inductor with certain volume and weight used in power system. These mutual inductors play an important role in power measurement, relay protection and other fields. Mutual inductor is a kind of special transformer, which can convert high voltage or large current into low voltage or small current for measurement, protection and control.

[0003] In the prior art, the mutual inductor with large volume has more resin mixed glue inside. During the gel process of the product, the upper part of the mold is first gelled and solidified due to the higher temperature at the upper part than the lower part in the oven. The middle and lower parts are gelled a little later. When the middle and lower parts are gelled, the upper part cannot go down, which is easy to form air gap and air space, cannot be repaired, and is easy to cause internal quality accidents. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a large volume mutual inductor local cooling gel tool, which solves the problem of air space caused by the upper part of the large volume mutual inductor being gelled and solidified first, and the middle and lower parts being gelled a little later.

[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: a large volume mutual inductor local cooling gel tool, comprising a mold arranged in the oven, a cavity tool fixedly connected to the upper part of the side wall of the mold, a water inlet pipe communicated with the upper part of the side wall of the cavity tool, and a water outlet pipe communicated with the bottom of the side wall of the cavity tool.

[0006] Valves are arranged on the water outlet pipe and the water inlet pipe, a mutual inductor body is arranged in the mold, and resin mixed glue is filled in the mold.

[0007] Further, flanges are arranged on the outer ends of the water outlet pipe and the water inlet pipe.

[0008] Further, an observation window is arranged on the side wall of the cavity tool.

[0009] Further, a containing box is arranged on the top of the side wall of the cavity tool, a filter plate is detachably arranged in the containing box, a communication pipe extending to the inner cavity of the cavity tool is arranged in the containing box, and the water inlet pipe is communicated with the outer side surface of the containing box.

[0010] Further, a maintenance cover plate is detachably arranged on the surface of the containing box through a plurality of bolts.

[0011] Further, the side wall of the cavity tool is fixedly connected with a motor, an output shaft of the motor extends into the inner cavity of the cavity tool, and a stirring blade is fixedly connected with the output shaft, and the inner cavity of the cavity tool is provided with a temperature sensor.

[0012] Compared with the prior art, the cavity tool is fixed on the surface of the mold, water flow is injected into the cavity tool, heat exchange is performed, the upper part of the mold is cooled, the upper part of the mold is slightly gelled later than the middle and lower parts, if there is air gap, the material on the upper part can penetrate downward to fill the air gap, the quality of the finished product of the large-size mutual inductor is improved, and the stability and safety during the working process of the large-size mutual inductor are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a top view and sectional view structural schematic diagram of the utility model;

[0014] Figure 2 It is a structure schematic diagram of the cavity tool and the observation window in the utility model;

[0015] Figure 3 It is the utility model Figure 1 It is a local enlarged view of A in the middle.

[0016] In the drawing: 1, water inlet pipe; 2, containing box; 3, cavity tool; 4, stirring blade; 5, mutual inductor body; 6, resin mixed glue; 7, mold; 8, filter plate; 9, communication pipe; 10, water outlet pipe; 11, valve; 12, flange plate; 13, observation window; 14, motor; 15, temperature sensor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-3 The utility model provides a kind of technical solutions: a large-size mutual inductor local cooling gel tool, including the mold 7 being arranged in the inside of oven, the upper part of the side wall of mold 7 is fixedly connected with cavity tool 3, the upper part of the side wall of cavity tool 3 is communicated with water inlet pipe 1, the bottom of the side wall of cavity tool 3 is communicated with water outlet pipe 10.

[0019] The water outlet pipe 10 and the water inlet pipe 1 are provided with valves 11, the inside of the mold 7 is provided with a transformer body 5, and the inside of the mold 7 is filled with a resin mixed glue 6.

[0020] After injecting water flow into the inside of the cavity tooling 3, the upper part of the mold 7 is cooled by heat exchange, the upper part of the mold 7 is slightly gelled later than the middle and lower parts, and after the middle and lower parts are solidified, if there is air gap, the material on the upper part can penetrate downward to fill the air gap, thereby improving the quality of the finished product of the large-size transformer and the stability and safety during the working process of the large-size transformer.

[0021] Before the poured mold 7 enters the oven, 80% of the water flow in the cavity tooling 3 is injected, and then the oven is entered for gelation and solidification.

[0022] If the temperature inside the cavity tooling 3 is higher than that of the middle and lower parts of the mold 7, replace 80% of the water flow in the cavity tooling 3 for re-injection, and if the temperature is lower than that of the middle and lower parts of the mold 7, do not replace the water. The capacity of the cavity tooling 3 is 7-8 kg of water flow which is optimal.

[0023] The outer ends of the water outlet pipe 10 and the water inlet pipe 1 are provided with flanges 12, which facilitate the butt joint of the pipeline and the supplement and discharge of water into the inside of the cavity tooling 3.

[0024] The sidewall of the cavity tooling 3 is provided with an observation window 13, and a scale mark can be provided on the observation window 13 to facilitate quantitative supplement of water flow.

[0025] The top of the sidewall of the cavity tooling 3 is provided with a containing box 2, the inside of the containing box 2 is detachably provided with a filter plate 8, the inside of the containing box 2 is provided with a communication pipe 9 extending to the inner cavity of the cavity tooling 3, and the water inlet pipe 1 is in communication with the outer side of the containing box 2.

[0026] The surface of the containing box 2 is detachably provided with an inspection cover plate through a plurality of bolts, and after the water flow is filtered through the filter plate 8, it enters the cavity tooling 3, thereby avoiding bringing dirt into the cavity tooling 3.

[0027] The sidewall of the cavity tooling 3 is fixedly connected with a motor 14, the output shaft of the motor 14 extends to the inner cavity of the cavity tooling 3 and is fixedly connected with an agitating blade 4, and the inner cavity of the cavity tooling 3 is provided with a temperature sensor 15.

[0028] The temperature sensor 15 facilitates monitoring of the temperature of the water flow in the cavity tooling 3, and after the motor 14 works, the agitating blade 4 can agitate the water flow, thereby improving the uniformity of the temperature of the water flow in the cavity tooling 3. The motor 14 can be provided with a heat insulation shell and a heat dissipation mechanism to prolong the service life of the motor 14.

[0029] In operation, the cavity tool 3 is fixed on the surface of the mold 7, and then the upper part of the mold 7 is cooled by injecting water flow into the cavity tool 3, so that the upper part of the mold 7 is slightly later than the middle and lower part of the mold 7 to gel, and the middle and lower part of the mold 7 is solidified, and if there is air gap, the material on the upper part can penetrate downward to fill the air gap, thereby improving the product quality of the large volume mutual inductor and improving the stability and safety of the large volume mutual inductor in the working process.

[0030] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gel tooling for local cooling of large-volume current transformers, comprising a mold (7) disposed inside an oven, characterized in that: A cavity tooling (3) is fixedly connected to the upper part of the side wall of the mold (7), and a water inlet pipe (1) is connected to the upper part of the side wall of the cavity tooling (3), and a water outlet pipe (10) is connected to the bottom of the side wall of the cavity tooling (3). Both the outlet pipe (10) and the inlet pipe (1) are equipped with valves (11), the mold (7) is equipped with a transformer body (5), and the mold (7) is filled with resin mixture (6).

2. The gel tooling for local cooling of a large-volume current transformer according to claim 1, characterized in that: Both the outlet pipe (10) and the inlet pipe (1) are provided with flanges (12) at their outer ends.

3. The gel tooling for local cooling of a large-volume current transformer according to claim 1, characterized in that: The cavity tooling (3) is provided with an observation window (13) on its side wall.

4. The gel tooling for local cooling of a large-volume current transformer according to claim 1, characterized in that: A receiving box (2) is provided on the top of the side wall of the cavity tooling (3). A filter plate (8) is disassembled inside the receiving box (2). A connecting pipe (9) with the other end extending into the cavity of the cavity tooling (3) is provided inside the receiving box (2). The water inlet pipe (1) is connected to the outer side of the receiving box (2).

5. The gel tooling for local cooling of a large-volume current transformer according to claim 4, characterized in that: The surface of the container (2) is fitted with a maintenance cover plate by means of several bolts.

6. The gel tooling for local cooling of a large-volume current transformer according to claim 1, characterized in that: A motor (14) is fixedly connected to the side wall of the cavity tooling (3). The output shaft of the motor (14) extends rotatably into the inner cavity of the cavity tooling (3) and is fixedly connected to a stirring blade (4). A temperature sensor (15) is provided in the inner cavity of the cavity tooling (3).

Images