Insulation mutual inductor

Abstract

The utility model discloses an insulation mutual inductor, and belongs to the technical field of mutual inductors. The insulation mutual inductor further comprises an installation fixing block fixedly arranged on the inner side of the mutual inductor shell. An inner circumference is arranged on the inner side of the mounting fixing block; a filling port is formed in the outer side of the mutual inductor shell; the filling port abuts against the outer side face of the mutual inductor shell. A filter screen plate is fixedly arranged at the end head of one end, provided with the fixing block, of the filling port; a filtering insertion plate is clamped on one side, far away from the mounting fixing block, of the filling port; a heat dissipation rod is embedded in the inner side of the filling port; the heat dissipation rod penetrates through the sponge block and the filtering insertion plate; the heat dissipation rod abuts against the inner side of the spiral channel plate. The heat dissipation rod is in clearance fit with the drying agent; the drying agent is in clearance fit with the heat dissipation rod, so that the clearance between the drying agent and the heat dissipation rod can be reduced when the drying agent is damped to expand or deteriorate, meanwhile, the filtering insertion plate is blocked, damp air is prevented from excessively entering the inner side of the transformer shell when seeping into the filling port, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of mutual inductors, and more specifically relates to an insulating mutual inductor. Background Art

[0002] The mutual inductor is also called instrument transformer. It can convert high voltage into low voltage and large current into small current. It is used in measurement or protection systems to achieve standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment.

[0003] For example, a gas insulated transformer with patent application number CN202223222261.7 includes a main body, a sealed door assembly is installed at the front of the main body, a rotary hinge is movably hinged between the main body and the sealed door assembly, an observation window and a handle are installed in the middle of the sealed door assembly, and a combination device is installed on one side of the sealed door assembly and the main body. In this utility model, the sealed door assembly has an opening and closing function by installing the rotary hinge, and the dustproof strip can further enhance the sealing of the equipment when the main body and the sealed door assembly are combined. By installing a lighting lamp, the equipment can be illuminated when it is opened, and the lighting makes it possible to clearly observe the specific internal conditions of the equipment during inspection or maintenance. At the same time, by installing a power opening and closing device, the equipment can be opened and closed when in use, thereby improving the energy-saving effect of the equipment.

[0004] Although the above-mentioned gas-insulated transformer can improve the energy saving effect of the equipment, in the relatively humid environment in the south, the inside of the transformer is too moist, which reduces its service life. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an insulating mutual inductor, solves the problem of moisture inside the mutual inductor and increases the service life.

[0006] The utility model discloses an insulating transformer, comprising a transformer housing; a working assembly is fixedly arranged on the inner side of the transformer housing; the transformer housing is rotatably connected to a flip door; a door lock is fixedly arranged on the transformer housing at the corresponding flip door; the output end of the door lock is clamped in the flip door; a one-way air outlet valve is fixedly arranged on the rear side of the transformer housing; the inner side of the one-way air outlet valve is connected with the inner side of the transformer housing; it also includes a mounting and fixing block fixedly arranged on the inner side of the transformer housing; an inner circumference is arranged on the inner side of the mounting and fixing block; a filling port is present on the outer side of the transformer housing; the filling port abuts against the outer side of the transformer housing; a screw thread is arranged at the front end of the filling port; the screw thread corresponds to the internal thread of the mounting and fixing block; the screw thread is threadedly connected with the mounting and fixing block; the The filling port is fixedly provided with a spiral channel plate on the inner side of one end of the mounting and fixing block; the filling port is fixedly provided with a filter screen plate on the end of one end of the mounting and fixing block; the other side of the spiral channel plate is embedded with a desiccant and a sponge block; the filling port is clamped with a filter plug-in plate on the side away from the mounting and fixing block; the filter plug-in plate separates the desiccant and the sponge block; the filling port is clamped with a sealing cover on the side away from the sponge block; the outer side of the sealing cover abuts the clamping block; the upper end of the clamping block passes through the filter plug-in plate; the upper end of the clamping block is clamped with a locking nut on the side away from the sealing cover; a heat sink is embedded in the inner side of the filling port; the heat sink passes through the sponge block and the filter plug-in plate; the heat sink abuts against the inner side of the spiral channel plate; the heat sink is gap-matched with the desiccant; and one end of the outer side of the heat sink is threadedly connected to the heat sink fin.

[0007] Preferably, the spiral channel plate is a stainless steel spiral thin steel plate.

[0008] Preferably, the heat sink rod and the heat sink fins are both made of metal with copper alloy as the main material.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] (1) By setting the gap between the desiccant and the heat sink, the gap between the desiccant and the heat sink can be reduced when the desiccant expands or deteriorates due to moisture. At the same time, the filter plug is blocked to prevent humid air from infiltrating the filling port and entering the inner side of the transformer housing excessively, thereby increasing the service life.

[0011] (2) By setting a heat sink rod passing through the sponge block, filter plug plate, cover, and desiccant, the heat inside the transformer housing is transferred while the internal parts of the filling port are fixed and stabilized, and the heat dissipation is carried out in conjunction with the heat dissipation fins, while facilitating the filling of inert gas to protect the equipment; by setting a clamping block, the filter plug plate is fixed while preventing the cover from detaching, thereby improving the stability of the equipment and facilitating disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0015] Explanation of the numbers in the figure: 10. Transformer housing; 11. One-way air outlet valve; 13. Working assembly; 14. Flip door; 15. Door lock; 16. Heat sink; 17. Heat sink fins; 18. Block; 19. Lock nut; 20. Desiccant; 21. Filter plug-in plate; 22. Spiral channel plate; 23. Filter screen plate; 24. Mounting block; 25. Filling port; 26. Cover; 27. Screw thread; 28. Sponge block. DETAILED DESCRIPTION

[0016] Specific embodiment 1: Please refer to Figure 1-3An insulating transformer, comprising a transformer housing 10; a working assembly 13 is fixedly arranged inside the transformer housing 10; the transformer housing 10 is rotatably connected to a flip door 14; a door lock 15 is fixedly arranged at the transformer housing 10 corresponding to the flip door 14; the output end of the door lock 15 is clamped to the flip door 14; a one-way air outlet valve 11 is fixedly arranged at the rear side of the transformer housing 10; the inner side of the one-way air outlet valve 11 is connected to the inner side of the transformer housing 10; and also includes a mounting and fixing block 24 fixedly arranged inside the transformer housing 10; an inner circumference is arranged inside the mounting and fixing block 24; a filling port 25 is provided on the outer side of the transformer housing 10 The filling port 25 abuts against the outer side of the transformer housing 10; a screw thread 27 is provided at the front end of the filling port 25; the screw thread 27 corresponds to the internal thread of the mounting block 24; the screw thread 27 is threadedly connected to the mounting block 24; the filling port 25 is fixedly provided with a spiral channel plate 22 on the inner side of one end of the mounting block 24; the filling port 25 is fixedly provided with a filter screen plate 23 at one end of the mounting block 24; the desiccant 20 and the sponge block 28 are embedded on the other side of the spiral channel plate 22; the filling port 25 is clamped with a filter plug plate 21 on the side away from the mounting block 24; the filter plug plate 21 separates the desiccant 20 and the sponge block 28 The filling port 25 is opened; the sealing cover 26 is clamped on the side away from the sponge block 28; the outer side of the sealing cover 26 abuts the clamping block 18; the upper end of the clamping block 18 passes through the filter insert plate 21; the upper end of the clamping block 18 is clamped on the side away from the sealing cover 26; a heat sink 16 is embedded in the inner side of the filling port 25; the heat sink 16 passes through the sponge block 28 and the filter insert plate 21; the heat sink 16 abuts against the inner side of the spiral channel plate 22; the heat sink 16 and the desiccant 20 are gap-matched; one end of the outer side of the heat sink 16 is threadedly connected to the heat sink fin 17; by setting the gap between the desiccant 20 and the heat sink 16, the desiccant 20 expands or When deteriorating, the gap between the desiccant 20 and the heat sink 16 can be reduced, and the filter plug plate 21 can be blocked at the same time to prevent humid air from excessively entering the inner side of the transformer housing 10 when penetrating the filling port 25, thereby improving the service life; by setting the heat sink 16 to pass through the sponge block 28, the filter plug plate 21, the cover 26, and the desiccant 20, the heat inside the transformer housing 10 is conducted while the internal parts of the filling port 25 are fixed stably, and the heat dissipation fins 17 are cooperated to dissipate heat, and at the same time, it is convenient to add inert gas to protect the equipment; by setting the clamping block 18, the filter plug plate 21 is fixed while preventing the cover 26 from detaching, thereby improving the stability of the equipment and facilitating disassembly and replacement.

[0017] See also Figure 2 The spiral channel plate 22 is a stainless steel spiral thin steel plate.

[0018] See also Figure 2 The heat sink rod 16 and the heat sink fins 17 are both made of metal with copper alloy as the main material.

[0019] During operation, the locking nut 19 is unscrewed and the card block 18 is pulled out; then, the heat sink 16 is held and the heat sink 16 and the heat sink fins 17 are pulled out; after the cover 26 is removed, the sponge block 28 is taken out; then, the gas supply end filled with inert gas is connected to the outside of the filling port 25, and the inert gas passes through the filter plug plate 21 and is dried by the desiccant 20, and then is input into the inner side of the transformer housing 10 from the filter screen plate 23 along the curved surface of the spiral channel plate 22, and the inert gas discharges the air inside the transformer housing 10 from the one-way air outlet valve 11; when the inner side of the transformer housing 10 is filled with inert gas, the inert gas supply end can be removed; after the sponge block 28 is inserted into the filling port 25, the cover 26 is inserted into the filling port 25, and then the heat sink 16 and the heat sink fins 17 are installed and reset, and then the card block 18 is buckled on the cover 26, and the card block 18 is fastened with the locking nut 19;

[0020] After the desiccant 20 absorbs excess moisture, it begins to expand and deform, blocking the filter plug board 21 to prevent moisture from continuing to enter the inner side of the transformer housing 10; after loosening the locking nut 19, remove the block 18, the cover 26, and the sponge block 28 in sequence, and after pulling out the filter plug board 21, clean the desiccant 20 and replace it with a dry desiccant 20, rinse the filter plug board 21, and then install the filter plug board 21, the sponge block 28, the filling port 25, and the cover 26 in sequence, and then clamp the block 18 to the cover 26, and then tighten the locking nut 19 to fix the block 18.

[0021] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0022] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0023] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. An insulating transformer, comprising a transformer housing (10); a working assembly (13) is fixedly arranged inside the transformer housing (10); the transformer housing (10) is rotatably connected to a flip door (14); a door lock (15) is fixedly arranged on the transformer housing (10) at a position corresponding to the flip door (14); an output end of the door lock (15) is clamped to the flip door (14); a one-way air outlet valve (11) is fixedly arranged on the rear side of the transformer housing (10); the inner side of the one-way air outlet valve (11) is connected to the inner side of the transformer housing (10); and the characteristic is that: The invention also comprises a mounting block (24) fixedly arranged on the inner side of the transformer housing (10); an inner circumference is arranged on the inner side of the mounting block (24); a filling port (25) is arranged on the outer side of the transformer housing (10); the filling port (25) abuts against the outer side of the transformer housing (10); a screw thread (27) is arranged at the front end of the filling port (25); the screw thread (27) corresponds to the internal thread of the mounting block (24); the screw thread (27) is threadedly connected to the mounting block (24); a spiral channel plate (22) is fixedly arranged on the inner side of one end of the mounting block (24) of the filling port (25); a filter screen plate (23) is fixedly arranged on the end of one end of the mounting block (24) of the filling port (25); a desiccant (20) and a sponge block (28) are embedded on the other side of the spiral channel plate (22); the filling port (25) ) is clamped with a filter plug plate (21) on a side away from the mounting fixing block (24); the filter plug plate (21) separates the desiccant (20) and the sponge block (28); the filling port (25) is clamped with a cover (26) on a side away from the sponge block (28); the outer side of the cover (26) abuts against the clamping block (18); the upper end of the clamping block (18) passes through the filter plug plate (21); the upper end of the clamping block (18) is clamped with a locking nut (19) on a side away from the cover (26); a heat sink (16) is embedded inside the filling port (25); the heat sink (16) passes through the sponge block (28) and the filter plug plate (21); the heat sink (16) abuts against the inner side of the spiral channel plate (22); the heat sink (16) and the desiccant (20) are clearance-matched; one end of the outer side of the heat sink (16) is threadedly connected to a heat sink fin (17).

2. An insulation transformer according to claim 1, characterized in that: The spiral channel plate (22) is a stainless steel spiral thin steel plate.

3. An insulation transformer according to claim 2, characterized in that: The heat dissipation rod (16) and the heat dissipation fins (17) are both made of metal with copper alloy as the main material.

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