CN213150496U - Reactor for locomotive filtering - Google Patents
Reactor for locomotive filtering Download PDFInfo
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- CN213150496U CN213150496U CN202022524990.2U CN202022524990U CN213150496U CN 213150496 U CN213150496 U CN 213150496U CN 202022524990 U CN202022524990 U CN 202022524990U CN 213150496 U CN213150496 U CN 213150496U
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Abstract
The utility model discloses a locomotive is reactor for filtering, including the iron leg, locate the last indisputable yoke of iron leg upper end, locate the lower indisputable yoke of iron leg lower extreme, a pair of folder down and locate the base of indisputable yoke below down, it is a pair of to go up indisputable yoke clamp and locate between the folder, it is a pair of to go up indisputable yoke clamp down between the folder, it is a pair of go up between the folder and a pair of down wear through indisputable yoke threaded rod fixed connection respectively between the folder, through vertical tensioning screw rod fixed connection between the last folder of homonymy and the folder down, down the folder with base fixed connection. The utility model has the advantages of simple structure, reliable satisfies the harsh vibration requirement of rolling stock, and vibration noise is little, and waterproof dustproof performance is good, and the reliability is high.
Description
Technical Field
The utility model relates to a track traffic vehicle-mounted electrical equipment especially relates to a reactor is used in locomotive filtering.
Background
In a locomotive electrical system, due to the existence of nonlinear electrical equipment, a circuit often contains a large number of higher harmonics, and the existence of the higher harmonics can deteriorate the magnetic field characteristics of the electrical equipment, so that the equipment is unstable in operation, noise and heating burning loss are generated, especially, the higher harmonics can cause the electronic control equipment to generate penetrating overvoltage damage, and the reliability and safety of the locomotive operation are seriously affected, so that a filter reactor for filtering the higher harmonics becomes an essential part of the locomotive electrical system.
As a main component of a locomotive electrical system, a filter reactor is required to satisfy requirements of lightweight, miniaturization, low noise, high efficiency, high reliability and safety of locomotive components in addition to a basic function of filtering. Generally, the space and the weight reserved for a filter reactor by a system are limited due to the requirements of light weight and miniaturization of a locomotive, and the traditional filter reactor product is difficult to achieve low noise, high efficiency, high reliability and safety under the condition of limited size and weight.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a simple structure, reliable, satisfy the harsh vibration requirement of rolling stock, reactor is used in locomotive filtering that the vibration noise is little.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a locomotive is reactor for filtering, includes the core leg, locate the last indisputable yoke of core leg upper end, locate the lower indisputable yoke of core leg lower extreme, a pair of folder down and locate the base of indisputable yoke below down, go up indisputable yoke clamp and locate a pair of go up between the folder, down indisputable yoke clamp is located a pair of down between the folder, a pair of go up between the folder and a pair of down between the folder respectively through indisputable yoke cross core screw rod fixed connection, through vertical tensioning screw rod fixed connection between the upper folder of homonymy and the folder down, down the folder with base fixed connection.
As a further improvement of the above technical solution: and a connecting plate is welded on the outer side of the lower clamping piece, and each side edge of the connecting plate is welded with the base.
As a further improvement of the above technical solution: the connecting plate is provided with a positioning hole, and the base is provided with a positioning pin matched with the positioning hole.
As a further improvement of the above technical solution: the iron core column clamping plate is characterized by further comprising an iron core column clamping plate, wherein the upper end of the iron core column clamping plate is located on the inner side of the upper clamping piece, and the lower end of the iron core column clamping plate is located on the inner side of the lower clamping piece.
As a further improvement of the above technical solution: an upper pressure plate is welded between the pair of upper clamping pieces and is abutted against the upper iron yoke.
As a further improvement of the above technical solution: and a sealing junction box is arranged on the pair of upper clamping pieces.
As a further improvement of the above technical solution: and the upper clamping piece is provided with a detachable hoisting screw rod.
As a further improvement of the above technical solution: the weight ratio of the iron core column to the coil wound on the iron core column is 1.8-4.
As a further improvement of the above technical solution: the length-width ratio of the cross section of the iron core column is 1.2-2.
As a further improvement of the above technical solution: the thickness of the air gap plate in the iron core column is 1-3mm, and the distance between the coil wound on the iron core column and the iron core column is more than 8 mm.
Compared with the prior art, the utility model has the advantages of: filter reactor for locomotive need have higher mechanical strength except will satisfying the circuit electrical property requirement, in order to satisfy the harsh vibration requirement of rolling stock, the utility model discloses an electric reactor for locomotive filtering, the iron leg of reactor, go up indisputable yoke, lower indisputable yoke through a pair of folder, a pair of folder cooperation indisputable yoke penetrating screw rod and vertical tensioning screw down, in vertical, iron leg pile thickness direction applys corresponding fastening torque after taut, with base fixed connection and become whole, strengthened the mechanical strength of reactor greatly, proved through the experiment that the product satisfies the vibration requirement of I type B level in GB/T21563 laid 2008 and IEC 61373-2013.
Drawings
Fig. 1 is a schematic perspective view of the reactor for filtering in a locomotive according to the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the utility model with the junction box hidden.
Fig. 3 is a schematic perspective view of an iron core according to the present invention.
The reference numerals in the figures denote: 1. sealing the junction box; 2. an upper clamp; 3. a coil; 4. longitudinally tensioning the screw; 5. an iron yoke piercing screw; 6. a base; 61. positioning pins; 7. a lower clamp; 71. a connecting plate; 72. positioning holes; 8. a lower iron yoke; 9. an upper iron yoke; 10. an air gap plate; 12. hoisting the screw rod; 13. a core limb; 14. a core limb clamping plate; 15. and (5) an upper pressing plate.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 3 show an embodiment of the reactor for locomotive filtering of the present invention, the reactor for locomotive filtering of this embodiment, including the core leg 13, locate the last yoke 9 of core leg 13 upper end, locate the lower yoke 8 of core leg 13 lower extreme, a pair of upper clamp 2, a pair of lower clamp 7, and locate the base 6 of lower yoke 8 below, upper yoke 9 presss from both sides and locates between a pair of upper clamp 2, lower yoke 8 presss from both sides and locates between a pair of lower clamp 7, between a pair of upper clamp 2, and respectively through yoke piercing screw 5 fixed connection between a pair of lower clamp 7, through longitudinal tensioning screw 4 fixed connection between the upper clamp 2 of homonymy and the lower clamp 7, lower clamp 7 and base 6 fixed connection.
The locomotive filter reactor of the embodiment is characterized in that an iron core column 13, an upper iron yoke 9 and a lower iron yoke 8 of the locomotive filter reactor need to have higher mechanical strength to meet the severe vibration requirement of a locomotive, and the locomotive filter reactor is fixedly connected with a base 6 into a whole after corresponding fastening torque is applied and tensioned in the longitudinal direction and the lamination thickness direction of the iron core column 13 through a pair of upper clamping pieces 2 and a pair of lower clamping pieces 7 matched with an iron yoke penetrating screw 5 and a longitudinal tensioning screw 4, so that the mechanical strength of the reactor is greatly enhanced, and the test proves that the product meets the I-class B-level vibration requirements in GB/T21563 and IEC 61373-2013. Wherein the base 6 may be fixed inside the locomotive, for example, by mounting bolts at the four corners.
Further, in the present embodiment, the outer side of the lower clip 7 is welded with a connecting plate 71, and each side of the connecting plate 71 is welded with the base 6. Tests show that when the locomotive runs, the stress at the joint of the lower clamping piece 7 and the base 6 is the largest, the lower clamping piece 7 and the base 6 can be firmly connected into a whole by welding the connecting plate 71 on the outer side of the lower clamping piece 7 and welding the other side edges of the connecting plate 71 with the base 6, and the requirement on mechanical strength when the locomotive runs is met. Preferably, a plurality of reinforcing ribs can be welded between the lower clamping piece 7 and the connecting plate 71, the upper clamping piece 7 can be made of angle steel, and the reinforcing ribs are arranged at the two end parts of the upper clamping piece in the same way, so that the vibration intensity of the whole machine is further improved. The material method of the upper clamping piece 7 and the lower clamping piece 7 can select low-temperature resistant and high-strength structural steel Q355 NE.
As a preferred technical solution, in this embodiment, the connecting plate 71 is provided with a positioning hole 72, and the base 6 is provided with a positioning pin 61 engaged with the positioning hole 72. The positioning pin 61 is matched with the positioning hole 72, so that the welding positioning can be realized, the special welding tool for manufacturing is saved, and the welding efficiency is improved.
As a preferred technical solution, in this embodiment, the locomotive filter reactor further includes a core limb clamping plate 14, an upper end of the core limb clamping plate 14 is located inside the upper clamping piece 2, and a lower end is located inside the lower clamping piece 7; an upper pressure plate 15 is welded between the pair of upper clamping pieces 2, and the upper pressure plate 15 is tightly propped against the upper iron yoke 9. The noise of the iron core mainly comes from two aspects, one is that the silicon steel sheet of the iron core vibrates because of magnetostriction under the action of an alternating magnetic field, and the other noise source is the connecting part of the air gap plate 10 and the silicon steel sheet, because the air gap plate is generally made of an insulating laminated plate, the elastic modulus of the air gap plate is relatively large, and when the conventional iron core columns 13 are stacked, no pressure exists in the longitudinal direction, the air gap plate 10 is in a free state, and the air gap plate 10 can generate micro-scale expansion along with the vibration of the silicon steel sheet, so that the operation noise of the. Therefore, to reduce the core noise, the magnetostriction of the silicon steel sheets is mainly controlled, and the vibration of the joint of the segments of the core leg 13 (i.e., the air gap plate 10) is limited. On one hand, the reactor of the embodiment selects a low magnetic flux density and selects a high-quality oriented silicon steel sheet with a small magnetostriction coefficient so as to reduce the high-frequency vibration noise of the silicon steel sheet; on the other hand, in terms of structural design, the freedom of core vibration is limited to the greatest extent in the stacking thickness direction and the longitudinal direction to reduce noise: in the stacking thickness direction, when the yoke penetrating screw 5 applies torsion, the upper clamping piece 2, the lower clamping piece 7 and the core column clamping plate 14 clamp the yoke sheet and the core column sheet so as to limit the vibration of the silicon steel sheet in the direction; in the longitudinal direction, an upper pressure plate 15 positioned above an upper iron yoke 9 and an upper clamping piece 2 are welded into a whole, a lower clamping piece 7 and a base 6 positioned below a lower iron yoke 8 are welded into a whole, when a longitudinal tensioning screw rod 4 exerts a torsion force, a longitudinal upper iron core is clamped, an air gap plate 10 is pressed by a force, the degree of freedom is limited by times, and high-frequency electromagnetic vibration noise is further reduced.
Further, in the present embodiment, a sealed junction box 1 is provided on the pair of upper clips 2. Locomotive product operational environment is abominable, especially the metal dust that the wheel set wearing and tearing caused is more, reactor itself is magnetic device, adsorb these metal dust easily, it causes electric clearance and creepage distance to reduce easily to pile up the metal dust for a long time, lead to the product to burn at last, simultaneously in the train operation, the reactor cavity can the aqueous vapor or even sleet gets into, lead to insulating burning, influence the reliability and the security of product and train operation, the reactor product of this embodiment is provided with terminal box 1 at the product top, can effectively protect the electrical connection position, avoid metal dust and aqueous vapor to get into, the security of product has been improved, reliability, be favorable to keeping the reactor can reliably move for a long time in the open air.
Further, in the present embodiment, the upper clamping member 2 is provided with a detachable hoisting screw 12 (for example, the detachable hoisting screw is detached and fixed by a locking nut). The lifting screw 12 is arranged to facilitate hoisting and transferring of the reactor product.
In the present embodiment, the weight ratio of the core leg 13 to the coil 3 wound around the core leg 13 is preferably 1.8 to 4. The distribution of reactor iron core silicon steel sheet and winding wire weight, to the iron core reactor, under same magnetic density, the silicon steel sheet quantity increases, and wire weight will suitably reduce, otherwise then the opposite, the reactor of this embodiment is through the iron-copper ratio of comprehensive optimization selection between 1.8 ~ 4, and on same performance basis, the volume is littleer, and weight is lighter.
As a preferable technical solution, in this embodiment, the aspect ratio of the cross section of the core leg 13 is 1.2 to 2. Informing and controlling the length-width ratio of the cross section of the iron core column 13 to be 1.2-2 so as to minimize the weight of the electromagnetic wire wound around the same iron core cross section; meanwhile, the coil 3 is of a layered structure, the window height ratio is controlled to be 3-5, so that the coil 3 has a larger heat dissipation area, the cross section area of a wire is reduced, the weight of the wire is reduced, and the effects of further miniaturization and light weight of a product are achieved finally.
In the preferred embodiment, the thickness of the air gap plate 10 inside the core leg 13 is 1-3mm, and the distance between the coil 3 wound on the core leg 13 and the core leg 13 is 8mm or more, so that the radius of the diffracted magnetic flux at the position where the winding is far away from the air gap plate 10 is reduced, the ampere-power applied to the winding is reduced, and the noise of the coil 3 is further reduced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a locomotive is reactor for filtering which characterized in that: including iron leg (13), locate last indisputable yoke (9) of iron leg (13) upper end, locate indisputable yoke (8) down, a pair of folder (2), a pair of folder (7) down of iron leg (13) lower extreme and locate base (6) down indisputable yoke (8) below, go up indisputable yoke (9) press from both sides and locate a pair of go up between folder (2), indisputable yoke (8) press from both sides and locate a pair of down between folder (7), it is a pair of go up between folder (2) and a pair of down respectively through indisputable yoke cross core screw rod (5) fixed connection between folder (7), through vertical tensioning screw rod (4) fixed connection between last folder (2) of homonymy and lower folder (7), down folder (7) with base (6) fixed connection.
2. The locomotive filter reactor of claim 1, wherein: the outer side of the lower clamping piece (7) is welded with a connecting plate (71), and each side edge of the connecting plate (71) is connected with the base (6) in a welding mode.
3. The locomotive filter reactor of claim 2, wherein: the connecting plate (71) is provided with a positioning hole (72), and the base (6) is provided with a positioning pin (61) matched with the positioning hole (72).
4. The locomotive filter reactor of claim 1, wherein: still include iron-cored post splint (14), iron-cored post splint (14) upper end is located go up folder (2) inboard, and the lower extreme is located folder (7) are inboard down.
5. The locomotive filter reactor of claim 1, wherein: an upper pressure plate (15) is welded between the pair of upper clamping pieces (2), and the upper pressure plate (15) is tightly propped against the upper iron yoke (9).
6. The locomotive filter reactor according to any one of claims 1 to 5, wherein: and a sealing junction box (1) is arranged on the pair of upper clamping pieces (2).
7. The locomotive filter reactor according to any one of claims 1 to 5, wherein: the upper clamping piece (2) is provided with a detachable hoisting screw (12).
8. The locomotive filter reactor according to any one of claims 1 to 5, wherein: the weight ratio of the iron core column (13) to the coil (3) wound on the iron core column (13) is 1.8-4.
9. The locomotive filter reactor according to any one of claims 1 to 5, wherein: the length-width ratio of the cross section of the iron core column (13) is 1.2-2.
10. The locomotive filter reactor according to any one of claims 1 to 5, wherein: the thickness of the air gap plate (10) inside the iron core column (13) is 1-3mm, and the distance between the coil (3) wound on the iron core column (13) and the iron core column (13) is more than 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524990.2U CN213150496U (en) | 2020-11-04 | 2020-11-04 | Reactor for locomotive filtering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524990.2U CN213150496U (en) | 2020-11-04 | 2020-11-04 | Reactor for locomotive filtering |
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| Publication Number | Publication Date |
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| CN213150496U true CN213150496U (en) | 2021-05-07 |
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| CN202022524990.2U Active CN213150496U (en) | 2020-11-04 | 2020-11-04 | Reactor for locomotive filtering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373607A (en) * | 2021-12-23 | 2022-04-19 | 上海华浦电气股份有限公司 | Alternating current output reactor iron core structure, manufacturing equipment and manufacturing method thereof |
| CN117711761A (en) * | 2024-01-31 | 2024-03-15 | 辽宁芯峻电气有限公司 | Low-noise iron core reactor |
-
2020
- 2020-11-04 CN CN202022524990.2U patent/CN213150496U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373607A (en) * | 2021-12-23 | 2022-04-19 | 上海华浦电气股份有限公司 | Alternating current output reactor iron core structure, manufacturing equipment and manufacturing method thereof |
| CN114373607B (en) * | 2021-12-23 | 2023-02-10 | 上海华浦电气股份有限公司 | Alternating current output reactor iron core structure, manufacturing equipment and manufacturing method thereof |
| CN117711761A (en) * | 2024-01-31 | 2024-03-15 | 辽宁芯峻电气有限公司 | Low-noise iron core reactor |
| CN117711761B (en) * | 2024-01-31 | 2024-05-17 | 辽宁芯峻电气有限公司 | Low-noise iron core reactor |
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Effective date of registration: 20220727 Address after: 441000 No.1 Wolong Avenue North, high tech Zone, Xiangyang City, Hubei Province Patentee after: XIANGYANG CRRC ELECTRIC MACHINERY CO.,LTD. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: CRRC ZHUZHOU MECHANICAL AND ELECTRONIC TECHNOLOGY CO.,LTD. |