CN211237936U - Large-current wound inductor - Google Patents
Large-current wound inductor Download PDFInfo
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- CN211237936U CN211237936U CN201922489236.7U CN201922489236U CN211237936U CN 211237936 U CN211237936 U CN 211237936U CN 201922489236 U CN201922489236 U CN 201922489236U CN 211237936 U CN211237936 U CN 211237936U
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- insulating cylinder
- copper bar
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- wall
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Abstract
The utility model provides a large-current winding inductor, which is suitable for a loop for passing large current, adopts red copper bars as winding coils, has small resistance and good conductivity, and generates less heat energy in the process of passing large current; the extension face of copper bar itself is wide, and the heat that produces under the circular telegram heavy current condition can be timely dispelled, and good heat dissipation has effectually solved the harm that ordinary inductance sent down the thermal fusion under the heavy current environment. In the test process, a plurality of large-current winding inductors can be sequentially connected in series according to needs to meet specific experimental requirements, and the high-temperature-resistant winding inductor has the advantages of high temperature resistance, high heat dissipation and high insulation performance while meeting the experimental requirements. The fixing groove is formed in the wall of the insulating cylinder, the copper bar and the insulating cylinder are fixed in a matched mode through the bolts, solidified resin glue is used for defining gaps among the copper bar, and fixing between the adjacent copper bars and reliable fixing of the copper bar and the insulating cylinder can be effectively and reliably guaranteed under the condition that high current is conducted to generate electrodynamic force.
Description
Technical Field
The utility model relates to a high voltage alternating current test field especially relates to a heavy current coiling inductance.
Background
The high voltage alternating current test is a test process commonly used in the current electric power industry and the electric power field. Among them, in the high voltage ac test, it is necessary to test the isolating switch, because the performance of the isolating switch has a great influence on the reliability of the power grid, the insulating gas inside the isolating switch has been SF6 gas for a long time, but because SF6 gas has a serious greenhouse effect, and the decomposition products have adverse effects on human health and equipment safety. At present, the mixed gas of SF6 and nitrogen gas replaces the original pure SF6 gas, in order to verify the structural performance of the mixed gas isolating switch, a related test platform is built to verify the on-off performance of the mixer isolating switch, and the test inductor in the test platform is an important accessory. Current experimental inductance can not satisfy the experimental condition of heavy current, leads to the heat that produces under the heavy current condition can not timely the effluvium for the thermal diffusivity is not good, and ordinary inductance leads to experimental unable normal clear because of generating heat causes melting easily under the heavy current environment moreover.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the above-mentioned prior art, the utility model provides a heavy current coiling inductance, include: an insulating cylinder and a copper bar; a plurality of grooves are formed in the first line side of the outer wall of the insulating cylinder; a plurality of grooves are formed in the second line side of the outer wall of the insulating cylinder;
the grooves formed in the first line side correspond to the grooves formed in the second line side one by one;
the bottom of each groove is provided with a threaded hole;
the copper bar is wound on the outer wall of the insulating cylinder; the copper bar arranged on the first line side is connected with the groove formed in the first line side in a matched mode through a screw and a nut;
the second end of the copper bar arranged on the second line side is matched and connected with the groove arranged on the second line side through a screw and a nut;
resin glue is coated on the outer surface of the insulating cylinder and the inner surface of the cylinder body.
It should be further noted that the center line of the first line side opening groove and the center line of the second line side opening groove corresponding to the first line side opening groove are not on the same straight line.
Further, the copper bars wound on the outer wall of the insulating cylinder are arranged in parallel;
the copper bars on the outer wall of the insulating cylinder are separated by insulating cured resin glue.
The first line side and the second line side of the outer wall of the insulating cylinder are separated by a certain degree.
Further, the copper bar adopts a red copper bar as a winding coil;
the screw and the nut are both insulated screws and insulated nuts.
According to the technical scheme, the utility model has the advantages of it is following:
the large-current winding inductor is suitable for a loop with large current, red copper bars are used as winding coils, the resistance is small, the conductivity is good, and the heat energy generated in the process of passing the large current is less; the extension face of copper bar itself is wide, and the heat that produces under the circular telegram heavy current condition can be timely dispelled, and good heat dissipation has effectually solved the harm that ordinary inductance sent down the thermal fusion under the heavy current environment.
In the test process, a plurality of large-current winding inductors can be sequentially connected in series according to needs to meet specific experimental requirements, and the high-temperature-resistant winding inductor has the advantages of high temperature resistance, high heat dissipation and high insulation performance while meeting the experimental requirements.
The fixing groove is formed in the wall of the insulating cylinder, the copper bar and the insulating cylinder are fixed in a matched mode through the bolts, solidified resin glue is used for defining gaps among the copper bar, and fixing between the adjacent copper bars and reliable fixing of the copper bar and the insulating cylinder can be effectively and reliably guaranteed under the condition that high current is conducted to generate electrodynamic force.
The copper bars of the large-current winding inductor are spaced by insulating curing resin adhesive, the copper bars and the insulating cylinder are fixed by the aid of insulating screws and nuts in a matched mode, insulating performance is good, and the insulating degree of the adjacent copper bars can be effectively guaranteed under the condition of large current.
The utility model discloses a coiling inductance satisfies the experimental condition of heavy current to have high temperature resistant, good heat dissipation, performance that the insulating degree is high.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a large-current wound inductor structure.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. 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 scope of protection of this patent.
It will be understood that when an element or layer is referred to as being "on," connected to, "or" coupled to "another element or layer, it can be directly on, connected or coupled to the other element or layer, and intervening elements or layers may also be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Spatially relative terms such as "under …", "below", "lower", "above", "over", and the like, as may be used herein for ease of description, describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The utility model provides a heavy current coiling inductance, as shown in figure 1, include: an insulating cylinder 1 and a copper bar 2; a plurality of grooves are formed in the first wire side 11 of the outer wall of the insulating cylinder 1; a plurality of grooves are formed in the second wire side 12 of the outer wall of the insulating cylinder 1; the grooves formed in the first line side 11 correspond to the grooves formed in the second line side 12 one by one; the bottom of each groove is provided with a threaded hole; the copper bar 2 is wound on the outer wall of the insulating cylinder 1; the copper bar 2 arranged on the first line side 11 is connected with a groove formed in the first line side 11 in a matched mode through a screw 3 and a nut 4; the second end of the copper bar 2 arranged on the second line side 12 is connected with a groove arranged on the second line side 12 in a matched manner through a screw and a nut; the outer surface of the insulating cylinder 1 and the inner surface of the cylinder body are coated with resin glue 5.
The central line of the first line side 11 with the grooves and the central line of the second line side 12 with the grooves are not on the same straight line. Copper bars 2 wound on the outer wall of the insulating cylinder 1 are arranged in parallel.
The insulation cylinder 1 is made of phenolic resin insulation cylinder with the thickness of 10mm to 16 mm. A plurality of grooves formed in the insulating cylinder 1 are respectively turned by a lathe; the width of the groove is 30mm to 45 mm; the depth of the groove is 3mm to 6 mm; the first wire side 11 and the second wire side 12 of the outer wall of the insulating cylinder 1 are 180 degrees apart. The copper bar 2 adopts a red copper bar as a winding coil; the screw and the nut are both insulated screws and insulated nuts.
The threaded hole in the groove and the drilled hole in the copper bar are matched and fixed by an insulating screw to ensure that the inductor is reliably positioned in the circumferential direction; the density of the grooves on the insulating cylinder determines the density of copper bar winding and the heat dissipation performance of the inductor in use; the solidified insulating resin adhesive can not only improve the insulativity between adjacent copper bars, but also inhibit the copper bar from moving due to electrodynamic force in the test, and further improve the work firmness of the inductor.
The solidified insulating resin glue smeared outside the insulating cylinder 1 not only can improve the insulativity between adjacent copper bars, but also can inhibit the copper bar from moving due to electrodynamic force in the test, and further improves the work firmness of the inductor.
The utility model discloses preferred mode is the thin wall phenolic resin insulating cylinder of selecting thickness more than 10mm, and the lathe is used and is turned the recess that the width is 32mm on the outer wall of insulating cylinder, and the degree of depth is about 3mm, is separated by 180 degrees on the insulating cylinder recess and gets into the through-hole. And then winding the copper bar with the punched hole in a groove of the insulating cylinder by using a wire winding machine, and fixing the copper bar hole and the hole on the insulating cylinder in a matching manner by using an insulating screw and a nut. And finally, coating insulating resin glue between the gaps of the adjacent copper bars of the wound inductor.
The large-current winding inductor is suitable for a loop with large current, red copper bars are used as winding coils, the resistance is small, the conductivity is good, and the heat energy generated in the process of passing the large current is less; the extension face of copper bar itself is wide, and the heat that produces under the circular telegram heavy current condition can be timely dispelled, and good heat dissipation has effectually solved the harm that ordinary inductance sent down the thermal fusion under the heavy current environment.
In the test process, a plurality of large-current winding inductors can be sequentially connected in series according to needs to meet specific experimental requirements, and the high-temperature-resistant winding inductor has the advantages of high temperature resistance, high heat dissipation and high insulation performance while meeting the experimental requirements.
The fixing groove is formed in the wall of the insulating cylinder, the copper bar and the insulating cylinder are fixed in a matched mode through the bolts, solidified resin glue is used for defining gaps among the copper bar, and fixing between the adjacent copper bars and reliable fixing of the copper bar and the insulating cylinder can be effectively and reliably guaranteed under the condition that high current is conducted to generate electrodynamic force.
The copper bars of the large-current winding inductor are spaced by insulating curing resin adhesive, the copper bars and the insulating cylinder are fixed by the aid of insulating screws and nuts in a matched mode, insulating performance is good, and the insulating degree of the adjacent copper bars can be effectively guaranteed under the condition of large current.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A high current wound inductor, comprising: the copper bar is arranged on the insulating cylinder (1); a plurality of grooves are formed in the first wire side (11) of the outer wall of the insulating cylinder (1); a plurality of grooves are formed in the second wire side (12) of the outer wall of the insulating cylinder (1);
the grooves formed in the first line side (11) correspond to the grooves formed in the second line side (12) one by one;
the bottom of each groove is provided with a threaded hole;
the copper bar (2) is wound on the outer wall of the insulating cylinder (1); the copper bar (2) arranged on the first line side (11) is connected with a groove formed in the first line side (11) in a matched mode through a screw (3) and a nut (4);
the second end of the copper bar (2) arranged on the second line side (12) is connected with a groove formed in the second line side (12) in a matched mode through a screw and a nut;
the outer surface of the insulating cylinder (1) and the inner surface of the cylinder body are coated with resin glue (5).
2. The high current wound inductor of claim 1,
the central line of the first line side (11) provided with the groove and the central line of the second line side (12) provided with the groove are not on the same straight line.
3. The high current wound inductor of claim 2,
the copper bars (2) wound on the outer wall of the insulating cylinder (1) are arranged in parallel;
the copper bars (2) on the outer wall of the insulating cylinder (1) are separated by insulating cured resin glue.
4. A high current wound inductor according to claim 1 or 2,
the insulation cylinder (1) is made of phenolic resin insulation cylinder with the thickness of 10mm to 16 mm.
5. A high current wound inductor according to claim 1 or 2,
a plurality of grooves formed in the insulating cylinder (1) are respectively turned by a lathe;
the width of the groove is 30mm to 45 mm;
the depth of the groove is 3mm to 6 mm;
the first wire side (11) and the second wire side (12) of the outer wall of the insulating cylinder (1) are separated by 180 degrees.
6. A high current wound inductor according to claim 1 or 2,
the copper bar (2) adopts a red copper bar as a winding coil;
the screw and the nut are both insulated screws and insulated nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922489236.7U CN211237936U (en) | 2019-12-31 | 2019-12-31 | Large-current wound inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922489236.7U CN211237936U (en) | 2019-12-31 | 2019-12-31 | Large-current wound inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211237936U true CN211237936U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922489236.7U Active CN211237936U (en) | 2019-12-31 | 2019-12-31 | Large-current wound inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211237936U (en) |
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2019
- 2019-12-31 CN CN201922489236.7U patent/CN211237936U/en active Active
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