CN217507060U - Energy-saving three-dimensional rolled iron core oil-immersed transformer - Google Patents

Abstract

The utility model relates to a transformer technical field's an energy-conserving three-dimensional roll iron core oil-immersed transformer, including the open shell body in upper end, winding, the shell body outline is the triangular prism structure, and the vertical edge of shell body is vertical arc limit, shell body inner chamber is equipped with rather than coaxial and separates the fender bounding wall, and separates the outer cavity that keeps off the bounding wall and divide into the inner chamber that is used for installing the winding and is used for holding the coolant oil to separate the fender bounding wall and be equipped with the logical oilhole that communicates with inner chamber and outer cavity. The utility model discloses owing to adopted first heat absorption fin, first heat radiation fin, second heat absorption fin and second heat radiation fin's setting, realize rapid cooling's effect through the heat transfer with the principle that increases the surface area, consequently compare with prior art and need not equipment such as external fan and realize rapid cooling's function, realized energy-conserving effect simultaneously.

Description

Energy-saving three-dimensional rolled iron core oil-immersed transformer

Technical Field

The utility model relates to a transformer technical field especially relates to an energy-conserving three-dimensional roll up iron core oil-immersed transformer.

Background

The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, and the transformer kind is various, mainly divide into: the transformer comprises a power transformer, an oil-immersed transformer, a dry-type transformer and the like, wherein the oil-immersed transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings.

The requirement of oil-immersed transformer to the temperature is comparatively strict, when the temperature is higher, the work efficiency of transformer can cause certain influence, for solving this problem, current oil-immersed transformer generally sets up a cooling apparatus in addition and cools off it, for example be equipped with a cooling blower outside it, what in addition increase the circulation circuit, and add on this circulation circuit and establish heat abstractor, above-mentioned way can improve the cooling effect of transformer, but has also increased certain defect, for example: 1. the transformer is larger in size; 2. the energy consumption is increased; 3. the noise is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-conserving three-dimensional roll up iron core oil-immersed transformer just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

an energy-saving three-dimensional coiled iron core oil-immersed transformer comprises an outer shell and a winding, wherein the outer shell is open at the upper end, the outline of the outer shell is of a triangular prism structure, the vertical edge of the outer shell is a vertical arc edge, the inner cavity of the outer shell is provided with a separation coaming which is coaxial with the inner cavity of the outer shell, the separation coaming divides the inner cavity of the outer shell into an inner cavity for mounting the winding and an outer cavity for containing cooling oil, the separation coaming is provided with an oil through hole communicated with the inner cavity and the outer cavity, the opening end of the inner cavity is detachably and hermetically connected with an inner cover plate with a low-voltage sleeve and a high-voltage sleeve, the opening end of the outer cavity is detachably and hermetically connected with an outer cover plate, the inner and outer plate surfaces of the separation coaming are respectively provided with a first heat absorption fin and a first heat dissipation fin, the inner and outer plane side walls of the outer shell are respectively provided with a second heat absorption fin and a second heat dissipation fin which is horizontally arranged, and the outer plane side walls of the outer shell are also provided with a protective shell for protecting the second heat dissipation fin, and the two ends of the protective shell are open, and fan-shaped plates matched with the vertical edges of the outer shell are arranged between the upper side part and the lower side part of the adjacent protective shell, so that the two fan-shaped plates and the corresponding open ends of the two protective shells form a horn-shaped air gathering structure.

Preferably, the winding includes three-dimensional triangle iron core, every vertical column shaft of three-dimensional triangle iron core is fixed coaxial cover in proper order from inside to outside and is equipped with low voltage coil, insulating cover, high voltage coil.

Preferably, the inner and outer side walls of the insulating sleeve are uniformly provided with a plurality of raised line structures along the axial direction of the insulating sleeve at intervals, and one side of each raised line structure departing from the insulating sleeve is provided with a chamfer or an arc structure.

Preferably, the vertical shaft of the three-dimensional triangular iron core is provided with a plurality of insulating raised line structures along the axial direction thereof at uniform intervals, and one side of each insulating raised line structure corresponding to the low-voltage coil is provided with a chamfer or an arc structure.

Preferably, the positions of the upper and lower sections of the inner chamber corresponding to the three-dimensional triangular iron core are provided with installation components which are used for installing the three-dimensional triangular iron core and have a buffering effect on the three-dimensional triangular iron core.

Preferably, the installation component includes mounting panel, connecting plate, mounting panel and connecting plate are relative and the interval sets up, evenly be equipped with buffer spring between mounting panel and the connecting plate, the position that the face that the connecting plate deviates from the mounting panel corresponds three-dimensional triangle-shaped iron core spreader is equipped with the joint seat, and the one end that the joint seat corresponds three-dimensional triangle-shaped iron core is equipped with the U type draw-in groove with three-dimensional triangle-shaped iron core spreader adaptation.

The beneficial effects are that:

1. because the arrangement of the first heat absorption fins, the first heat dissipation fins, the second heat absorption fins and the second heat dissipation fins is adopted, the heat of the oil in the inner cavity is absorbed by the first heat absorption fins and is transferred to the first heat dissipation fins, and the heat of the oil in the inner cavity is quickly transferred to the oil in the outer cavity by utilizing the characteristics of quick heat absorption of copper and quick heat dissipation of aluminum, and similarly, the heat of the oil in the outer cavity is transferred to the outside through the second heat absorption fins and the second heat dissipation fins, so that the function of quick cooling is realized without external fans and other equipment, and the energy-saving effect is realized;

2. owing to adopted the shell body profile to be triangular prism structure, and the vertical edge of shell body is the setting on vertical arc limit, and the setting of protective housing and sector plate, not only can protect second heat radiation fins, prevent that second heat radiation fins from damaging, can also make protective housing and sector plate form gather natural wind with the wind gap structure of gathering, make natural wind get into protective housing through the protective housing opening end that corresponds in, then behind the second heat radiation fins that corresponds, flow away from another opening end of protective housing, because the shell body profile is triangular prism structure, and then no matter which direction natural wind homoenergetic is gathered by the wind gap structure that gathers that corresponds, consequently, can realize effectual improvement radiating efficiency's function.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

fig. 5 is a schematic view of an assembly structure of the middle winding and the mounting assembly of the present invention.

The reference numerals are explained below:

1. an outer housing; 11. a baffle coaming; 12. a first heat sink fin; 13. a first heat radiation fin; 14. a second heat sink fin; 15. a second heat radiation fin; 2. a winding; 21. a three-dimensional triangular iron core; 22. a low-voltage coil; 23. an insulating sleeve; 24. a high voltage coil; 3. an inner cover plate; 4. an outer cover plate; 5. a protective housing; 6. a sector plate; 7. mounting the component; 71. mounting a plate; 72. a connecting plate; 73. a buffer spring; 74. a clamping seat.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the first embodiment, as shown in fig. 1 to 5, an energy-saving three-dimensional wound core oil-immersed transformer includes an outer shell 1 with an open upper end, a winding 2, wherein the outer contour of the outer shell 1 is a triangular prism structure, the vertical edge of the outer shell 1 is a vertical arc edge, an inner cavity of the outer shell 1 is provided with a separation baffle plate 11 coaxial with the outer shell, the inner cavity of the outer shell 1 is divided into an inner cavity for mounting the winding 2 and an outer cavity for containing cooling oil by the separation baffle plate 11, the separation baffle plate 11 is provided with oil holes communicated with the inner cavity and the outer cavity, and the outer contour of the separation baffle plate 11 is adapted to the outer contour of the outer shell 1 as required; at least two oil through holes are arranged as required and are respectively and correspondingly positioned at the middle section and the upper end of the baffle coaming plate 11; an inner cover plate 3 with a low-voltage sleeve and a high-voltage sleeve is detachably and hermetically connected to the open end of the inner cavity of the outer shell 1, the low-voltage sleeve is used for hermetically introducing a low-voltage cable into the inner cavity, and the high-voltage sleeve is used for hermetically introducing a high-voltage cable into the inner cavity; the open end of the outer chamber is detachably and hermetically connected with an outer cover plate 4, and the outer cover plate 4 is provided with a gas relay communicated with the outer chamber according to requirements; according to the requirement, a partition board which divides the outer cavity into six small cavities is further arranged between the outer shell 1 and the baffle enclosing plate 11, wherein the cavity corresponding to the plane side wall of the outer shell 1 is used for containing cooling oil, and the cavity corresponding to the vertical edge of the outer shell 1 is used for installing other equipment, such as circulating cooling equipment, circulating purification equipment for circulating purification of cooling oil and other components, specifically, the circulating cooling equipment and the circulating purification equipment can comprise an oil inlet pipe, a filter, an oil pump, a heat exchanger and an oil storage tank which are sequentially communicated, and can also comprise a temperature sensor, a frequency converter for adjusting the output power of the oil pump and a frequency converter for adjusting the heat dissipation efficiency of the heat exchanger, and the heat exchanger is arranged outside the outer shell 1 according to the requirement;

the inner and outer plate surfaces of the baffle coaming 11 are respectively provided with a first heat absorption fin 12 and a first heat dissipation fin 13, the first heat absorption fin 12 is made of copper, and the first heat dissipation fin 13 is made of aluminum according to requirements; the inner and outer plane side walls of the outer shell 1 are respectively provided with a plurality of second heat absorption fins 14 and a plurality of second heat dissipation fins 15 which are horizontally arranged, and the second heat absorption fins 15 are arranged at intervals along the vertical direction according to the requirement; according to the requirement, the material of the second heat absorbing fins 14 is copper, and the material of the second heat dissipating fins 15 is aluminum; the outer plane side wall of the outer shell 1 is also provided with a protective shell 5 for protecting the second heat dissipation fins 15, two ends of the protective shell 5 are open, and fan-shaped plates 6 matched with the vertical edges of the outer shell 1 are arranged between the upper side part and the lower side part of each adjacent protective shell 5, so that the two fan-shaped plates 6 and the corresponding open ends of the two protective shells 5 form a horn-shaped air gathering port structure, namely the outward caliber of the air gathering port structure is larger, and the corresponding open ends of the protective shells 5 are two air outlets of the air gathering port structure;

according to the requirement, the outer side of the open end of the protective shell 5 is provided with an outward flange;

because the arrangement of the first heat absorption fins 12, the first heat dissipation fins 13, the second heat absorption fins 14 and the second heat dissipation fins 15 is adopted, the heat of the oil in the inner cavity is absorbed by the first heat absorption fins 12 and is transferred to the first heat dissipation fins 13, and the heat of the oil in the inner cavity is rapidly transferred to the oil in the outer cavity by utilizing the characteristics of rapid heat absorption of copper and rapid heat dissipation of aluminum, and the heat of the oil in the outer cavity is transferred to the outside through the second heat absorption fins 14 and the second heat dissipation fins 15, the function of rapid cooling is realized without external fans and other equipment, and the energy-saving effect is realized;

because the outer shell 1 outline is the triangular prism structure, and the vertical edge of the outer shell 1 is the setting of the vertical arc edge, and the setting of the protective shell 5 and the sector plate 6, not only can protect the second heat radiation fins 15, prevent the second heat radiation fins 15 from being damaged, can also make the air gathering port structure formed by the protective shell 5 and the sector plate 6 gather the natural wind, make the natural wind get into the protective shell 5 through the corresponding open end of the protective shell 5, then after the corresponding second heat radiation fins 15, flow away from the other open end of the protective shell 5, because the outer shell 1 outline is the triangular prism structure, and then the natural wind homoenergetic of which direction is not the same can be gathered by the air gathering port structure that corresponds, therefore, the function of the effective improvement of the heat dissipation efficiency can be realized.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 5, the winding 2 includes a three-dimensional triangular iron core 21, and each vertical column body of the three-dimensional triangular iron core 21 is sequentially and fixedly and coaxially sleeved with a low-voltage coil 22, an insulating sleeve 23 and a high-voltage coil 24 from inside to outside; this arrangement prevents the low voltage coil 22 from contacting the high voltage coil 24;

a plurality of raised line structures along the axial direction of the insulating sleeve 23 are annularly arranged on the inner side wall and the outer side wall of the insulating sleeve 23 at uniform intervals, and a chamfer angle or an arc-shaped structure is arranged on one side of each raised line structure, which is far away from the insulating sleeve 23;

the arrangement can lead the inner side and the outer side of the high-voltage coil 24 and the outer side of the low-voltage coil 22 to be contacted with cooling oil, thus improving the heat dissipation efficiency of the high-voltage coil 24 and the low-voltage coil 22;

the even spacer ring of the vertical post shaft of three-dimensional triangle-shaped iron core 21 is equipped with a plurality of insulating sand grip structures along its axial, and one side that insulating sand grip structure corresponds low voltage coil 22 is equipped with chamfer or arc structure, sets up like this and can make the inboard and the coolant oil contact of low voltage coil 22, has improved the radiating efficiency to low voltage coil 22.

In the third embodiment, on the basis of the second embodiment, as shown in fig. 3 and 5, mounting assemblies 7 for mounting the three-dimensional triangular iron cores 21 and having a buffering effect on the three-dimensional triangular iron cores 21 are respectively arranged at positions of the upper and lower sections of the inner chamber corresponding to the three-dimensional triangular iron cores 21;

the mounting assembly 7 comprises a mounting plate 71 and a connecting plate 72, the mounting plate 71 and the connecting plate 72 are opposite and spaced, a buffer spring 73 is uniformly arranged between the mounting plate 71 and the connecting plate 72, a clamping seat 74 is arranged at a position of the connecting plate 72, which is far away from the mounting plate 71, corresponding to the cross column of the three-dimensional triangular iron core 21, and one end of the clamping seat 74, which corresponds to the three-dimensional triangular iron core 21, is provided with a U-shaped clamping groove matched with the cross column of the three-dimensional triangular iron core 21;

the upper mounting component 7 is arranged in the middle of the inner plate surface of the inner cover plate 3, and the lower mounting component 7 is arranged in the center of the bottom of the inner chamber

Due to the arrangement of the mounting assembly 7, the three-dimensional triangular iron core 21 can be clamped and fixed through the clamping seat 74, and the three-dimensional triangular iron core 21 can be buffered through the buffer spring 73, so that the effect of damping the three-dimensional triangular iron core 21 is achieved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an energy-conserving three-dimensional roll up iron core oil-immersed transformer which characterized in that: including open shell body (1) in upper end, winding (2), shell body (1) outline is the triangular prism structure, and shell body (1) vertical edge is vertical arc limit, shell body (1) inner chamber is equipped with rather than coaxial fender bounding wall (11) that separates, and separates fender bounding wall (11) divide into this shell body (1) inner chamber be used for installing winding (2) and be used for holding the outer cavity of coolant oil to separate fender bounding wall (11) and be equipped with the logical oilhole that communicates with inner chamber and outer cavity, sealed connection can be dismantled to inner chamber opening end has interior apron (3) that have low pressure sleeve pipe and high-pressure sleeve pipe, outer cavity opening end can be dismantled sealing connection and has outer apron (4), the face is equipped with first heat absorbing fin (12) and first heat radiating fin (13) respectively inside and outside fender bounding wall (11), shell body (1) inside and outside plane lateral wall is equipped with second heat absorbing fin (14) and the second heat radiating fin that the level set up respectively (15) The outer plane side wall of the outer shell (1) is further provided with a protective shell (5) used for protecting the second heat dissipation fins (15), two ends of the protective shell (5) are open, and fan-shaped plates (6) matched with the vertical edges of the outer shell (1) are arranged between the upper side portion and the lower side portion of the adjacent protective shell (5) so that the two fan-shaped plates (6) and the corresponding open ends of the two protective shells (5) form a horn-shaped air gathering structure.

2. The energy-saving three-dimensional rolled iron core oil-immersed transformer according to claim 1, characterized in that: winding (2) are including three-dimensional triangle-shaped iron core (21), every vertical column shaft of three-dimensional triangle-shaped iron core (21) is fixed coaxial cover from interior to exterior in proper order and is equipped with low voltage coil (22), insulating cover (23), high voltage coil (24).

3. The energy-saving three-dimensional rolled iron core oil-immersed transformer according to claim 2, characterized in that: the uniform spacing ring of the inner side wall and the outer side wall of the insulating sleeve (23) is provided with a plurality of raised line structures along the axial direction of the insulating sleeve, and one side of each raised line structure departing from the insulating sleeve (23) is provided with a chamfer or an arc-shaped structure.

4. The energy-saving three-dimensional rolled iron core oil-immersed transformer according to claim 2, characterized in that: the vertical column shaft of three-dimensional triangle iron core (21) is equipped with a plurality of insulating sand grip structures along its axial at even interval ring, and one side that just insulating sand grip structure corresponds low-voltage coil (22) is equipped with chamfer or arc structure.

5. The energy-saving three-dimensional rolled iron core oil-immersed transformer according to claim 2, characterized in that: the positions of the upper and lower sections of the inner chamber, which correspond to the three-dimensional triangular iron cores (21), are provided with mounting assemblies (7) which are used for mounting the three-dimensional triangular iron cores (21) and have a buffering effect on the three-dimensional triangular iron cores (21).

6. The energy-saving three-dimensional rolled iron core oil-immersed transformer according to claim 5, characterized in that: installation component (7) are including mounting panel (71), connecting plate (72), mounting panel (71) and connecting plate (72) are relative and the interval sets up, evenly be equipped with buffer spring (73) between mounting panel (71) and connecting plate (72), the position that the face that connecting plate (72) deviates from mounting panel (71) corresponds three-dimensional triangle-shaped iron core (21) spreader is equipped with joint seat (74), and joint seat (74) correspond the one end of three-dimensional triangle-shaped iron core (21) and be equipped with the U type draw-in groove with three-dimensional triangle-shaped iron core (21) spreader adaptation.

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