CN111667991A - Inductor and inductor cabinet - Google Patents

Abstract

The invention relates to an inductor and an inductor cabinet, and belongs to the technical field of electrical equipment. The invention provides an inductor, which comprises an inductor main body, wherein the inductor main body comprises an iron core and a coil, and the iron core comprises at least one winding part; the coil is wound on the winding part of the iron core; the coil is wound to form a plurality of coil layers which are parallel to each other, a plurality of supporting pieces are arranged between the adjacent coil layers, and the supporting pieces are uniformly arranged along the winding direction of the coil so as to form a coil layer air passage between the adjacent coil layers. The air passage of the coil layer provides a heat dissipation channel for the inductor, so that the coil layer of the inner layer and the coil layer of the outer layer can be in contact with the wind flow, the contact area of the coil and the wind flow is increased, and the heat dissipation effect of the inductor is improved. In addition, the inductor cabinet of the invention uses one fan to cool a plurality of inductors simultaneously through the reasonable layout of the inductors, thereby not only reducing the number of the fans, but also reducing the overall failure rate of the inductor cabinet.

Description

Inductor and inductor cabinet

Technical Field

The invention relates to an inductor and an inductor cabinet, and belongs to the technical field of electrical equipment.

Background

A plurality of inductors which are operated at the same time are usually arranged in the inductor cabinet, and a large amount of heat is generated in the inductors during frequent charging and discharging, so that the temperature of the inductors during operation is increased, and the service life of the inductors is influenced. Too high a temperature of at least one inductor in the inductor cabinet may result in reduced overall operating performance of the inductor cabinet.

The inductor generally comprises a coil and an iron core, wherein the coil is formed by winding a wire, adjacent multiple turns of wires are closely attached together, the outermost coil of the inductor is directly contacted with air to dissipate heat, and the heat dissipation from the outer layer of the coil to the inner layer of the coil is gradually deteriorated, so that the working performance and the service life of the inductor are seriously influenced.

Disclosure of Invention

In view of the above-mentioned drawbacks in the prior art, the present invention provides an inductor and an inductor cabinet.

The invention provides an inductor, which comprises an inductor main body, wherein the inductor main body comprises an iron core and a coil, and the iron core comprises at least one winding part; the coil is wound on the winding part of the iron core; the coil is wound and is established a plurality of coil layers that are parallel to each other, is provided with a plurality of support pieces between the adjacent coil layer, a plurality of support pieces are evenly set up along the winding direction of coil to form coil layer air flue between the adjacent coil layer.

Optionally, the support member includes an electrically insulating resin strip, and an extending direction of the electrically insulating resin strip is parallel to an axis of the winding portion; and/or the support piece comprises an electric insulation resin block, wherein part of the electric insulation resin block is uniformly arranged along the direction parallel to the axis of the winding part; and/or, the iron core includes connecting body, connecting body is last to be equipped with a plurality ofly around establishing the portion, and a plurality ofly set up and be parallel to each other around establishing a portion interval.

Optionally, an inductor housing is further included, the inductor housing having a hollow box body in which the inductor body is disposed.

Optionally, the winding part is cubic; the box body is the cube form, the inductor shell is still including setting up the deep bead of box body both ends apex angle department, just the deep bead orientation the inductor main part extends, so that the both ends of inductor shell with the interval is predetermine to have between the inductor main part, predetermine the interval and form the outside wind channel of coil.

Optionally, the inductor further comprises a plurality of iron core supports, each iron core support comprises a first end and a second end, the first ends of the iron core supports are connected with the iron cores, and the second ends of the iron core supports are connected with the inductor housing; and/or the iron core is also provided with a plurality of hoisting pieces, and the hoisting pieces are symmetrically distributed relative to the center line of the inductor.

In addition, the invention also provides an inductor cabinet, which comprises a cabinet body, wherein the cabinet body is internally provided with an air duct, and the air duct extends along the height direction of the cabinet body; the cabinet body is also internally provided with an air exhaust layer, the air exhaust layer is positioned at the top end of the air duct, the air duct is communicated with the air exhaust layer, and the air exhaust layer is also provided with an air outlet communicated with the outside; a fan is arranged in the exhaust layer and is hung at the top of the cabinet body; the cabinet body still includes the inductor mounting layer, the inductor mounting layer is located the both sides that the dryer is relative, be provided with in the inductor mounting layer as above the inductor, the coil layer air flue of inductor with the dryer intercommunication.

Optionally, a dimension of the inductor in a height direction of the cabinet is smaller than a dimension of the inductor in a width direction of the cabinet.

Optionally, a control layer is further arranged in the cabinet body, the control layer is located at the bottom end of the air duct, and the control layer is provided with a knife switch, a voltage sensor, an electromagnetic contactor and a plurality of lap copper bars; the coil is electrically connected with at least one of the knife switch, the voltage sensor and the electromagnetic contactor through the lapping copper bar.

Optionally, the inductor mounting layer is provided with a guide rail for guiding the inductor to slide, a sliding plate matched with the guide rail is arranged on the inductor, and the inductor mounting layer are further connected through a fastener; and/or filter screens are arranged at the air inlet of the inductor mounting layer and the air outlet of the air exhaust layer.

Optionally, the bottom of the inductor mounting layer is provided with a first reinforcing rib extending along the length direction and/or the width direction of the cabinet body; and/or the inductor can be further connected with the air duct, and the air duct is provided with a second reinforcing rib extending along the length direction of the cabinet body and/or along the height direction of the cabinet body; and/or the joint of the air duct and the inductor installation layer and the joint of the air duct and the exhaust layer are hermetically connected through sealing strips.

The invention provides an inductor and an inductor cabinet.A plurality of parallel coil layers are formed by winding coils, and a plurality of supporting pieces are arranged between adjacent coil layers, so that a coil layer air passage is formed between the adjacent coil layers. The air passage of the coil layer provides a heat dissipation channel for the inductor, so that the coil layer of the inner layer and the coil layer of the outer layer can be in contact with the wind flow, the contact area of the coil and the wind flow is increased, and the heat dissipation effect of the inductor is improved. And further, the working performance of the inductor is ensured, and the service life of the inductor is prolonged.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of an inductor main body provided in this embodiment;

fig. 2 is a schematic structural diagram of an inductor provided in this embodiment;

fig. 3 is an external structural schematic diagram of the inductor provided in this embodiment;

fig. 4 is a schematic structural diagram of an inductor cabinet provided in this embodiment;

fig. 5 is a schematic diagram illustrating installation of the inductor cabinet provided in the present embodiment;

fig. 6 is a schematic structural diagram of an air duct and an air exhaust layer provided in this embodiment;

fig. 7 is a schematic view of ventilation of the inductor cabinet provided in this embodiment.

Description of reference numerals: 100-an inductor; 101-an inductor body;

1-a coil; 2-iron core; 3-an inductor housing; 4-a cabinet body;

11-a coil layer; 12-a support; 13-coil layer air passages; 14-lapping copper bars;

21-iron core support; 22-a hoisting member;

31-a wind deflector; 32-a slide plate;

41-air duct; 42-a wind-discharging layer; 43-an inductor mounting layer; 44-a control layer;

421-a fan.

With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but not for limiting the scope of the present invention, and the relative relationship changes or adjustments are also considered to be within the scope of the present invention without substantial technical changes.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In addition, in the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," "fixed," and the like shall be broadly construed, and for example, may be fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and fig. 2, the present embodiment provides an inductor 100 having an inductor main body 101, where the inductor main body 101 has a core 2 and a coil 1, and the core 2 has at least one winding portion; the coil 1 is wound on the winding part of the iron core 2; the coil 1 is wound to form a plurality of parallel coil layers 11, a plurality of supporting pieces 12 are arranged between the adjacent coil layers 11, and the supporting pieces 12 are uniformly arranged along the winding direction of the coil 1, so that a coil layer air passage 13 is formed between the adjacent coil layers 11.

For example, the iron core 2 may be a prism or a cylinder, and at least a portion of the prism or the cylinder serves as a winding portion; the iron core 2 can also be in other shapes such as a cuboid with a through hole in the middle, and the coil passes through the through hole of the iron core and is wound on the iron core.

The iron core 2 has at least one winding part, and the winding part can be a cylinder such as a prism or a cylinder with a linear axis or a shape such as a rod, a bar, a plate and a strip. Can be with a plurality of portions parallel arrangement of establishing of winding, connect through the connecting bodies of iron core respectively around the both ends of establishing the portion, can form a plurality of portions of establishing of winding on an iron core.

The coil 1 forms a plurality of mutually parallel coil layers 11, each coil layer 11 can be formed by winding one or more layers of copper wires, and the copper wires are coated with electrically insulating resin or other substances to form a fixed coil layer shape. A plurality of supporting pieces 12 are arranged between two adjacent coil layers 11, and a plurality of coil layer air passages 13 are formed between the two adjacent coil layers 11.

The support member 12 may be a material with certain strength, for example, the support member 12 may be made of plastic, ceramic, etc. In addition, since the coil 1 generates heat during operation, the supporting member 12 may have good thermal conductivity to avoid heat accumulation at the position where the supporting member 12 is disposed, for example, an insulating layer may be disposed outside the metal strip to serve as the supporting member 12 of the present embodiment.

The plurality of supporting members 12 are uniformly arranged along the winding direction of the coil 1 so that the coil layers 11 form a certain supporting force with respect to each other to maintain a fixed structure, thereby forming coil layer air passages 13 between the coil layers 11.

The winding part axis of the coil 1 can be a straight line, and the axes of the coil layer air passages 13 are all parallel to the winding part axis of the coil 1. The coil layer air passages 13 are ensured to be in regular shapes, and the width of the coil layer air passages can be kept consistent, so that the ventilation and heat dissipation among the coil layers 11 are more uniform.

In the inductor provided by the embodiment, the coils are wound to form a plurality of coil layers which are parallel to each other, and a plurality of supporting pieces are arranged between adjacent coil layers, so that the coil layer air passages are formed between the adjacent coil layers. The air passage of the coil layer provides a heat dissipation channel for the inductor, so that the coil layer of the inner layer and the coil layer of the outer layer can be in contact with the wind flow, the contact area of the coil and the wind flow is increased, and the heat dissipation effect of the inductor is improved. And further, the working performance of the inductor is ensured, and the service life of the inductor is prolonged.

As shown in fig. 2 and 5, the support member 12 may alternatively be an electrically insulating resin strip, the extending direction of which is parallel to the axis of the winding portion; and/or, the support 12 may also be an electrically insulating resin block, wherein a portion of the electrically insulating resin block is uniformly arranged along a direction parallel to the axis of the winding portion; and/or the iron core 2 is provided with a connecting body, a plurality of winding parts are arranged on the connecting body, and the plurality of winding parts are arranged at intervals and are mutually parallel.

Illustratively, the material of the supporting member 12 is preferably an electrically insulating resin, and mainly considering that the electrically insulating resin has various advantages, the supporting effect is ensured, and meanwhile, the supporting member has the advantages of heat resistance and the like.

The material of the electrically insulating resin itself has adhesive force, and the electrically insulating resin can be directly adhered between the coil layers 11 to form the support 12; the inductor 100 releases a large amount of heat during operation, the electrical insulating resin has high temperature adaptability, and the electrical insulating resin has the advantage of being not easy to deform at high temperature, so that the material of the support 12 is selected to be the electrical insulating resin which can meet the heat-resistant requirement; and the electrical insulating resin has good thermal conductivity and does not accumulate on the electrical insulating resin or at the connection of the electrical insulating resin and the coil 1 when a large amount of heat energy is generated between the coils 1. In addition, when the electrically insulating resin is damaged, since the electrically insulating resin itself has an adhesive force, the repair of the support member 12 is also made easier.

When the supporting member 12 provided between the coils 1 is made of an electrically insulating resin, an electrically insulating resin strip may be formed, the length direction of the electrically insulating resin strip may be parallel to the axis of the winding portion, and the length of the electrically insulating resin strip may be equal to the winding axis of the coil 1. Alternatively, the support 12 may be an electrically insulating resin block, and a plurality of electrically insulating resin blocks are uniformly arranged between the adjacent coil layers 11 in a direction parallel to the winding axis of the coil 1 to achieve mutual support of the adjacent coil layers. Both electrically insulating resin strips and electrically insulating resin blocks may be employed in the coil 1 of the same inductor 100.

The extending direction of the electrically insulating resin strips can be parallel to the axis of the winding part, so that reliable supporting force can be formed between the coil layers 11 in the direction parallel to the axis of the winding part, and the air passages 13 of the coil layers are not easy to lose efficacy.

The same iron core 2 can only have one winding part, that is, the coil 1 wound on the same iron core 2 only has one winding shaft. The same iron core 2 can also be provided with a connecting body and a plurality of winding parts arranged in parallel, and at least one end of the plurality of winding parts is connected with the connecting body, so that a plurality of winding parts for winding the coil 1 are formed on the same iron core 2.

When the total length of the copper wire is constant, the height of the inductor can be reduced by winding the copper wire around the coil 1 formed on the plurality of windings. When putting into the inductor cabinet, the height requirement to the inductor cabinet reduces, and the focus of inductor cabinet reduces simultaneously for the inductor cabinet is convenient when arranging, and the inductor cabinet can not be because unexpected the pushing down when placing on ground.

Meanwhile, when the height of the inductor 100 is lowered, the height difference of the coil 1 itself is small, and the negative pressure difference of the coil 1 at different heights is also reduced. As shown in fig. 5, the inductor cabinet 4 is provided with two upper and lower inductor mounting layers 43 along the height direction of the inductor cabinet 4, 4 inductors 100 are mounted in the inductor cabinet 4, and 2 inductors 100 are mounted at the same level of the inductor cabinet 4. The smaller height of the inductor 100 is to reduce the negative pressure difference between the two layers of inductors 100 in the height direction of the inductor cabinet 4, so as to avoid the problem of overlarge air volume difference entering the upper and lower layers of inductors 100, which is beneficial to ensuring that the working temperatures of the upper and lower layers of inductors are close and the thermal factors have the same service life.

Optionally, the inductor 100 further has an inductor housing 3, the inductor housing 3 being a box with a hollow, the inductor body 101 being disposed in the box.

Illustratively, the inductor housing 3 is further arranged outside the inductor main body 101, the inductor housing 3 plays a role in protecting the inductor main body 101, for example, damage to the coil 1 can be avoided in the inductor carrying process, and the inductor provided with the inductor housing 3 is convenient to carry. The hollow box provided by the inductor housing 3 provides a space for accommodating the inductor 100. In the inductor cabinet 4 shown in fig. 5, the inductor housing 3 is hermetically connected to the air duct 41, an air flow passage is formed between the inner wall of the inductor housing 3 and the outer layer of the coil 1, and the inductor housing 3 and the air duct 41 together constitute a space through which cooling air flows.

As shown in fig. 1 and 3, optionally, the winding part is in a cube shape; the box body is cubic, and inductor shell 3 still is provided with deep bead 31 at box body both ends apex angle department, and deep bead 31 extends towards inductor main part 101 to form the interval of predetermineeing between inductor shell 3's both ends and the inductor main part 101, predetermine the interval and form the outside wind channel of coil.

Illustratively, the winding part is in a cube shape, and when the coil 1 is wound on the winding part, the outline of the outer surface of the coil 1 is rectangular or rounded rectangle. When the box body is also in a cubic shape, a gap formed between the outer surface of the coil 1 and the inner surface of the box body is uneven, that is, the condition that the air volume passing through different positions between the outer surface of the coil 1 and the inner surface of the box body is different can exist.

In order to make the air quantity at different positions between the outer surface of the coil 1 and the inner surface of the box body identical and avoid the problems of uneven ventilation and heat dissipation or air quantity waste, wind shields 31 are further arranged at the top corners of two ends of the box body of the inductor shell 3.

The wind deflector 31 extends toward the inductor main body 101, that is, the wind deflector 31 extends inward so that the wind deflector 31 is perpendicular to the wind flow direction in the coil layer air passage 13. The arrangement of the wind shield 31 can reduce the ventilation gap at a certain position between the outer surface of the coil 1 and the inner surface of the box body, that is, a preset distance can be formed between the two ends of the inductor shell 3 and the inductor main body 101 according to the ventilation requirement, and the preset distance forms an external air duct of the coil. The wind shield 31 can make the cross section of the air duct outside the coil uniform, so as to achieve the purposes of uniform heat dissipation of the coil 1 and prevention of air quantity waste.

The wind deflector 31 may be integrated with the inductor housing 3, or the wind deflector 31 may be connected to the inductor housing 3 by welding, bolting, or the like.

As shown in fig. 2 and 3, optionally, the inductor 100 further has a plurality of core supports 21, the core supports 21 include a first end and a second end, the first end of the core support 21 is connected to the core 2, and the second end of the core support 21 is connected to the inductor housing 3; and/or the iron core 2 is further provided with a plurality of hoisting pieces 22, and the hoisting pieces 22 are symmetrically distributed relative to the center line of the inductor 100.

Illustratively, since the core 2 and the coil 1 have a certain weight, if the coil 1 of the inductor 100 is directly supported on the inductor housing 3, there occurs a problem that the compressive strength of the coil 1 is insufficient and is deformed by pressure; the coil 1 wound on the winding portion of the iron core 2 has a certain height, and the iron core 2 cannot be directly connected to the inductor housing 3.

The iron core 2 is fixed on the coil 1 of the inductor 100 through the iron core support 21, thereby achieving the purpose of placing the inductor main body 101 in the inductor shell 3 without affecting ventilation of the coil layer 11.

As shown in fig. 2, the iron core support 21 may be "Z" shaped, that is, the iron core support 21 may be formed by bending a metal plate twice, the first end and the second end of the iron core support 21 are both flat plate structures, and a vertical plate is connected between the flat plates, and the vertical plate may be perpendicular to the two flat plates, or a preset angle is formed between the vertical plate and the two flat plates.

In the embodiment, the Z-shaped structure of the iron core support 21 increases the connection surface between the flat plate and the iron core 2 or between the flat plate and the inductor housing 3, so that the connection between the iron core support 21 and the iron core 2 or between the iron core support 21 and the inductor housing 3 is more reliable; on the other hand, by the horizontal extension of the flat plate, the connection position of the core support 21 and the inductor housing 3 is more flexible, so that the connection of the core 2 and the inductor housing 3 is more convenient. As shown in fig. 2, the bottom end of the iron core 2 is connected with four iron core supports 21, two ends of the iron core 2 are respectively connected with two iron core supports 21, and the four iron core supports 21 make the connection between the inductor main body 101 and the inductor housing 3 more stable.

The riser of the iron core support 21 enables the iron core 2 and the coil 1 to be separated from the inductor shell 3, and the inductor shell 3 is not in direct contact with the inductor 100 and the coil 1, so that the problem that the coil 1 is deformed due to the extrusion force formed between the coil 1 and the inductor shell 3 is solved.

When the iron core 2 is connected with the inductor housing 3, the first end of the iron core support 21 is connected with the connecting body of the iron core 2, and the second end of the iron core support 21 is connected with the inductor housing 3. In addition, in order to support the iron core 2 in the inductor housing 3 and keep the iron core 2 in a good balance, the iron core 2 may be connected to the inductor housing 3 through a plurality of symmetrically arranged iron core brackets 21.

Because the inductor 100 has a heavy weight, the inductor 100 needs to be lifted off the ground by other tools in the moving process of the inductor 100, a sling 22 for lifting the inductor 100 is further arranged on the iron core 2 of the inductor 100, and the sling 22 can be a sheet structure provided with an opening or a circular ring. When it is desired to move the inductor 100, a rope or hook can be attached to an opening or loop in the sling 22. Making connection of the inductor 100 to other tools more convenient.

In addition, in order to keep the inductor 100 balanced when the iron core 2 is connected by other tools and the inductor 100 is moved, the sling 22 may be symmetrically distributed with respect to the center line of the inductor 100. Namely, the hoisting pieces 22 can be symmetrically arranged on the connecting bodies at the two ends of the iron core 2, and the hoisting pieces 22 can be arranged in the middle parts of the two ends of the connecting bodies.

As shown in fig. 4 and fig. 5, in addition, the present embodiment further provides an inductor cabinet, wherein an air duct 41 is disposed in the cabinet body 4, and the air duct 41 extends along the height direction of the cabinet body 4; the cabinet body 4 is also provided with an exhaust layer 42, the exhaust layer 42 is positioned at the top end of the air duct 41, the air duct 41 is communicated with the exhaust layer 42, and the exhaust layer 42 is also provided with an air outlet communicated with the outside; a fan 421 is arranged in the exhaust layer 42, and the fan 421 is hung on the top of the cabinet body 4; the cabinet 4 is further provided with an inductor mounting layer 43, the inductor mounting layer 43 is located on two opposite sides of the air duct 41, the inductor 100 is arranged in the inductor mounting layer 43, and the coil layer air duct 13 of the inductor 100 is communicated with the air duct 41.

Illustratively, the cabinet 4 may be a frame structure, and since the inductor 100 generates a large amount of heat during operation, the cabinet 4 is made into the frame structure, which is beneficial to heat dissipation of the inductor cabinet itself.

The inductor cabinet 4 further has an air duct 41 for ventilation and heat dissipation of the inductor 100, the air duct 41 extends along the height direction of the cabinet 4, the air exhaust layer 42 is located at the top end of the air duct 41, and a fan 421 is installed in the air exhaust layer 42. The fan 421 is disposed in the air exhaust layer 42 to provide power for the air flow, and the air flow enters the coil layer air passage 13 of the inductor 100 from the outside, passes through the coil layer air passage 13, enters the air duct 41, and is exhausted from the air outlet of the air exhaust layer, so that ventilation and heat dissipation of the inductor 100 are realized. Fig. 7 is a schematic ventilation diagram of the inductor cabinet in this embodiment, and the direction indicated by the arrow indicates the direction of the air flow, and it can be seen from the figure that the air flow enters the inductor 100 from the outside through the filter screen, passes through the air duct 41, and is discharged from the air exhaust layer 42.

Because the dryer wall probably exists the comparison thinly, the not high condition of dryer self intensity hoists fan 421 in the top of the cabinet body 4, and the weight of fan 421 self is direct to be born by the cabinet body, has avoided the weight of fan directly to add on the dryer and increase the problem that the dryer bore load-carrying capacity.

Fig. 6 is a schematic connection diagram of the air duct 41 and the air exhaust layer 42, wherein a dotted line in the air duct 41 or the air exhaust layer 42 indicates a distribution form of the mounting holes when the air duct 41 or the air exhaust layer 42 is connected with the cabinet 4 through a fastener. Illustratively, any point in a chain line indicates the position of one mounting hole, and a chain line indicates that a plurality of mounting holes are aligned in a straight line. In fig. 6, a plurality of dotted lines are provided in the wind tunnel 41 or the air discharge layer 42 to indicate a plurality of rows of mounting holes. However, the number of rows of mounting holes and the number of mounting holes in a row of mounting holes are only illustrated in the drawings and are not limited thereto. Wherein the fastener may be a rivet or a screw, etc.

Wherein the air duct 41 may be a metal plate welded or formed integrally by itself. The air duct 41 may be fixed inside the inductor cabinet 4 by a steel bar or other connection member. The exhaust layer 42 may be a box structure. When the fan 421 works, a negative pressure is formed on the side facing the air duct 41, and the air pressure on the side facing the outside of the air duct 13 of the coil layer is greater than the air pressure on the side facing the air duct 41 of the fan 421, so that the air flow can enter from the inductor 100 and be discharged from the air outlet.

Two inductor mounting layers 43 are arranged on two opposite sides of the air duct 41; in addition, a plurality of inductor mounting layers 43 may be symmetrically disposed around the air duct 41, each inductor mounting layer 43 may have an inductor 100 disposed therein, and the coil layer air passages 13 of the plurality of inductors 100 may all communicate with the air duct 41.

Optionally, the dimension of the inductor 100 in the height direction of the cabinet 4 is smaller than the dimension of the inductor in the width direction of the cabinet 4.

Illustratively, the ventilation effect of the coils 1 is close for different heights of the inductor 100, and the ventilation effect of the inductor 100 is close for different installation levels. The inductor 100 may be provided in a squat structure, that is, the size of the inductor 100 in the height direction of the cabinet 4 may be smaller than the size of the inductor in the width direction of the cabinet 4. As shown in fig. 5, the length direction, the width direction, and the height direction of the cabinet 4 correspond to the directions indicated by the arrow X, the arrow Y, and the arrow Z, respectively.

As shown in fig. 5, the mounting directions of the inductors 100 on both sides of the cabinet 4 are along the direction indicated by the arrow X and away from the direction indicated by the arrow X, respectively. The fan 421 is installed in a direction away from the direction indicated by the arrow Z.

Reducing the height of the inductor 100 can reduce the height difference of the coils 1 of the same inductor 100, and reduce the ventilation distance and the negative pressure difference of the coils 1 with different heights of the same inductor 100 and the different inductor installation layers 43, so that the ventilation and heat dissipation of the coils 1 of the same inductor 100 are uniform.

Optionally, a control layer 44 is further disposed in the cabinet 4, the control layer 44 is located at the bottom end of the air duct 41, and the control layer 44 is provided with a knife switch, a voltage sensor, an electromagnetic contactor and a plurality of overlapping copper bars 14; the coil 1 is electrically connected with at least one of the knife switch, the voltage sensor and the electromagnetic contactor through the lapping copper bar 14.

Illustratively, the control layer 44 is provided with necessary electric devices such as a knife switch, a voltage sensor, an electromagnetic contactor, etc., and since the heat generation amount of these devices is small, the heat dissipation of these devices is performed in a natural cooling manner. Since ventilation and heat dissipation are not required for these devices, the control layer is disposed at the bottom end of the air duct 41, i.e., at the bottom of the cabinet 4. The electric devices can be arranged in a dispersed mode, and heat concentration is avoided. The copper strap 14 is connected to the connector of the coil 1 of the inductor 100, and the copper strap 14 is connected to other electric devices.

Optionally, the inductor mounting layer 43 is provided with a guide rail for guiding the inductor 100 to slide, the inductor 100 is provided with a sliding plate 32 matched with the guide rail, and the inductor 100 and the inductor mounting layer 43 are further connected through a fastener; and/or the air inlet of the inductor installation layer 43 and the air outlet of the air exhaust layer 42 are both provided with filter screens.

Illustratively, the inductor mounting layer 43 is provided with a guide rail for guiding the inductor 100 to slide, the inductor 100 is provided with a sliding plate 32 matched with the guide rail, and the inductor housing 3 is slidably connected with the inductor mounting layer 43, so that the inductor 100 can be more conveniently mounted on the inductor cabinet 4 or taken out of the inductor cabinet 4 in a push-pull manner due to the generally heavy weight of the inductor 100.

The purpose of the guide rails in the inductor mounting layer 43 is, on the one hand, to carry the inductor 100 and, on the other hand, to guide the inductor 100 as it slides on the upper part of the guide rails. The structure of the guide rail can be a rectangular groove structure, the sliding plate 32 slides in two rectangular grooves which are oppositely arranged, and the guide rail can be fixed in the inductor cabinet 4 by welding or bolt fastener connection.

When the inductor 100 is mounted in the inductor mounting layer 43, in order to prevent the inductor 100 from sliding out of the inductor mounting layer 43 abnormally, or prevent the inductor 100 from shaking in the inductor mounting layer 43 during the transportation of the inductor cabinet to be damaged or cause a danger, the inductor 100 and the inductor mounting layer 43 may be fixedly connected by using a fastener.

Because the air inlet of the inductor mounting layer 43 and the air outlet of the air exhaust layer 42 need to pass through by air flow, and for safety, filter screens are arranged at the air inlet of the inductor mounting layer 43 and the air outlet of the air exhaust layer 42, so that the air flow can pass through, and safety accidents caused by the fact that people carelessly contact the energized inductor 100 can be avoided.

Optionally, the bottom of the inductor mounting layer 43 is provided with a first reinforcing rib extending along the length direction of the cabinet 4 and/or along the width direction of the cabinet 4; and/or, the inductor 100 may also be connected with an air duct 41, and a second reinforcing rib extending along the length direction of the cabinet 4 and/or along the height direction of the cabinet 4 is provided on the air duct 41; and/or the joint of the air duct 41 and the inductor installation layer 43 and the joint of the air duct 41 and the exhaust layer 42 are hermetically connected through sealing strips.

The inductor 100 in the inductor cabinet generates a large amount of heat during operation, so the cabinet body 4 of the inductor in this embodiment may be of a steel frame structure, and considering that the inductor mounting layer 43 is an important stressed portion in the cabinet body 4, a first reinforcing rib may be disposed at the bottom of the inductor mounting layer 43, that is, the bearing capacity of the inductor cabinet itself is enhanced by adding a plurality of first reinforcing ribs with high strength. The bottom of the inductor mounting layer 43 is provided with first reinforcing ribs extending in the length direction of the cabinet 4 and/or in the width direction of the cabinet 4, that is, the first reinforcing ribs are arranged mainly on the plane of the bottom of the inductor mounting layer 43.

The second reinforcing rib is arranged on the air duct 41, so that the strength of the air duct 41 can be enhanced. In addition, the air duct 41 may be connected to the cabinet 4 of the inductor by a second reinforcing rib.

Since the air flow is fluid, if the joint between the air duct 41 and the inductor mounting layer 43 and the joint between the air duct 41 and the air exhaust layer 42 are not tight, air leakage occurs, which results in a reduction in heat dissipation effect. The joint of the air duct 41 and the inductor installation layer 43 and the joint of the air duct 41 and the exhaust layer 42 can be connected by sealing strips to ensure the reliability of ventilation.

According to the inductor cabinet, the inductors are reasonably arranged, and the plurality of inductors are cooled by one fan, so that the number of the fans is reduced, and the integral failure rate of the inductor cabinet is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An inductor comprising an inductor body, the inductor body comprising a core and a coil, characterized in that:

the iron core comprises at least one winding part;

the coil is wound on the winding part of the iron core; the coil is wound and is established a plurality of coil layers that are parallel to each other, is provided with a plurality of support pieces between the adjacent coil layer, a plurality of support pieces are evenly set up along the winding direction of coil to form coil layer air flue between the adjacent coil layer.

2. An inductor according to claim 1, characterized in that:

the support piece comprises an electric insulation resin strip, and the extending direction of the electric insulation resin strip is parallel to the axis of the winding part;

and/or the support piece comprises an electric insulation resin block, wherein part of the electric insulation resin block is uniformly arranged along the direction parallel to the axis of the winding part;

and/or, the iron core includes connecting body, connecting body is last to be equipped with a plurality ofly around establishing the portion, and a plurality ofly set up and be parallel to each other around establishing a portion interval.

3. An inductor according to claim 1, characterized in that:

also included is an inductor housing having a hollow box body in which the inductor body is disposed.

4. An inductor according to claim 3, characterized in that:

the winding part is in a cubic shape; the box body is the cube form, the inductor shell is still including setting up the deep bead of box body both ends apex angle department, just the deep bead orientation the inductor main part extends, so that the both ends of inductor shell with the interval is predetermine to have between the inductor main part, predetermine the interval and form the outside wind channel of coil.

5. An inductor according to claim 4, characterized in that:

the inductor comprises an inductor shell, and is characterized by further comprising a plurality of iron core supports, wherein each iron core support comprises a first end and a second end, the first ends of the iron core supports are connected with the iron cores, and the second ends of the iron core supports are connected with the inductor shell;

and/or the iron core is also provided with a plurality of hoisting pieces, and the hoisting pieces are symmetrically distributed relative to the center line of the inductor.

6. An inductor cabinet, characterized in that:

the air duct type refrigerator comprises a cabinet body, wherein an air duct is arranged in the cabinet body and extends along the height direction of the cabinet body;

the cabinet body is also internally provided with an air exhaust layer, the air exhaust layer is positioned at the top end of the air duct, the air duct is communicated with the air exhaust layer, and the air exhaust layer is also provided with an air outlet communicated with the outside; a fan is arranged in the exhaust layer and is hung at the top of the cabinet body;

the cabinet body further comprises inductor mounting layers, the inductor mounting layers are located on two opposite sides of the air duct, an inductor according to any one of claims 1-5 is arranged in each inductor mounting layer, and an air passage of a coil layer of the inductor is communicated with the air duct.

7. An inductor cabinet according to claim 6, wherein:

the size of the inductor along the height direction of the cabinet body is smaller than the size of the inductor along the width direction of the cabinet body.

8. An inductor cabinet according to claim 6, wherein:

the cabinet body is also provided with a control layer, the control layer is positioned at the bottom end of the air duct, and the control layer is provided with a knife switch, a voltage sensor, an electromagnetic contactor and a plurality of lap copper bars; the coil is electrically connected with at least one of the knife switch, the voltage sensor and the electromagnetic contactor through the lapping copper bar.

9. An inductor cabinet according to claim 6, wherein:

the inductor mounting layer is provided with a guide rail for guiding the inductor to slide, a sliding plate matched with the guide rail is arranged on the inductor, and the inductor mounting layer are further connected through a fastener;

and/or filter screens are arranged at the air inlet of the inductor mounting layer and the air outlet of the air exhaust layer.

10. An inductor cabinet according to claim 6, wherein:

the bottom of the inductor mounting layer is provided with a first reinforcing rib extending along the length direction and/or the width direction of the cabinet body;

and/or the inductor can be further connected with the air duct, and the air duct is provided with a second reinforcing rib extending along the length direction of the cabinet body and/or along the height direction of the cabinet body;

and/or the joint of the air duct and the inductor installation layer and the joint of the air duct and the exhaust layer are hermetically connected through sealing strips.

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