CN219487453U

CN219487453U - Double-iron-core vehicle-mounted inductor

Info

Publication number: CN219487453U
Application number: CN202223212240.7U
Authority: CN
Inventors: 雷斌; 林潇涵; 黄嘉韶; 黎纪农; 龚明; 林华锋
Original assignee: Guangzhou Railway Kekai Manufacturing Co ltd
Current assignee: Guangzhou Railway Kekai Manufacturing Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-08-08
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a double-iron-core vehicle-mounted inductor, which comprises a shell and a cover plate arranged above the shell, wherein an induction receiving part is arranged in the shell, the induction receiving part comprises a first iron core, a second iron core and a coil wound on the first iron core and the second iron core, the coil comprises a first coil winding wound on the first iron core and a second coil winding wound on the second iron core, the first coil winding and the second coil winding are respectively provided with rectifiers connected in series with each other, and the two rectifiers are connected in parallel; according to the utility model, the rectifiers are respectively connected in series in the two coil windings to realize conversion from an alternating voltage signal to a direct voltage signal, and then the two rectifiers are connected in parallel to input the direct voltage signal into the host, so that equipment damage caused by a reverse flow phenomenon of the two coil windings which are directly connected in parallel is avoided; due to the characteristic of the parallel structure, even if one end is broken, the voltage signal can still be normally transmitted to the host by the other coil winding, so that the stable operation of the equipment is maintained, and the driving safety is ensured.

Description

Double-iron-core vehicle-mounted inductor

Technical Field

The utility model belongs to the technical field of vehicle-mounted inductors, and particularly relates to a double-iron-core vehicle-mounted inductor.

Background

In the electrified railway environment of China, the vehicle-mounted inductor is signal receiving equipment of an automatic passing neutral section system of a railway electric locomotive and a high-speed railway motor train unit, and is arranged on the electric locomotive or the motor train unit. At present, with the development of high-speed railways in China, the running speed of a motor train unit can exceed 350 km per hour. The running speed, the vibration environment, the broken stone impact, the volume weight limitation, the long-term application and the high reliability provide harsh challenges for the performance index of the vehicle-mounted inductor, the original vehicle-mounted inductor adopts a single-core single-coil winding as a design thought, but because the single-core single-coil winding output route is easy to cause poor line contact and even open circuit because of daily loss events such as collision friction and the like, an alternating current voltage signal output by a magnetic induction coil when generating a dynamic potential can not be normally transmitted to a host for processing and analysis, the condition of a crew is influenced, the running safety is endangered by serious personnel, the operation efficiency is influenced, and the national economy loss is caused.

Disclosure of Invention

The utility model mainly aims to provide a double-iron-core vehicle-mounted inductor, which solves the problem that an output line of the vehicle-mounted inductor is worn and broken under normal operation of a train so as not to effectively transmit signals.

According to a first aspect of the present utility model, there is provided a dual-core vehicle-mounted inductor, including a housing and a cover plate disposed above the housing, wherein an induction receiving portion is disposed inside the housing, the induction receiving portion includes a first core, a second core, and a coil wound around the first core and the second core, the coil includes a first coil winding wound around the first core and a second coil winding wound around the second core, the first coil winding and the second coil winding are respectively provided with rectifiers connected in series therewith, and the two rectifiers are connected in parallel.

In a specific embodiment of the present utility model, the rectifiers are provided with an ac input end and a dc output end, the ac input ends of the two rectifiers are respectively connected in series with the first coil winding and the second coil winding, and the dc output ends of the two rectifiers are connected in parallel to form a rectifier bridge output group.

In a specific embodiment of the present utility model, the induction receiving portion further includes an outgoing cable electrically connected to the first coil winding and the second coil winding.

In a particular embodiment of the utility model, the housing comprises an outer shell and an inner shell, the outer shell being provided with a first receiving cavity matching the outer shape of the inner shell, the inner shell being mounted in the first receiving cavity.

In a particular embodiment of the utility model, the inner housing is provided with a second receiving chamber, in which the induction receiving portion is mounted, which induction receiving portion is integral with the inner housing by filling.

In a specific embodiment of the utility model, the housing is provided with an opening communicating with the first accommodating cavity, the cover plate is covered on the opening, and the housing and the cover plate are detachably connected.

In a specific embodiment of the utility model, the upper part of the housing is provided with a mounting part extending outwards from the opening, and the mounting part is in locking fit with the cover plate through a safety bolt.

In a specific embodiment of the present utility model, a cross section between the mounting portion and the side wall of the housing is in an L-shaped structure.

In a specific embodiment of the present utility model, the cover plate is provided with a through hole from which the outgoing cable extends, the through hole communicates with the opening, and the outgoing cable extends from the through hole to connect with the host.

In a specific embodiment of the utility model, the upper surface of the cover plate is provided with a fastening frame for fixing the outgoing cable extending out of the through hole, and the fastening frame is fixed on the upper surface of the cover plate by a screw.

One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:

according to the utility model, the rectifiers are respectively connected in series in the two coil windings, the alternating current voltage signal is converted into the direct current voltage signal after being processed by the rectifiers, then the two rectifiers are connected in parallel to input the direct current voltage signal into the host, so that the problem that the backflow phenomenon is harmful to the safety of equipment is avoided when the two coil windings are directly connected in parallel, and the host has the compatibility of alternating current and direct current operation, so that the direct current signal is processed and analyzed, and the normal operation of the vehicle-mounted inductor is ensured; if one coil winding has the problems of transmission line faults and the like, due to the characteristic of parallel structure, even if one end is broken, the voltage signal can still be normally transmitted to a host by the other coil winding, so that stable operation of the equipment is maintained, and driving safety is ensured.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic diagram of a dual core onboard inductor in accordance with one embodiment of the present utility model;

fig. 2 is a schematic diagram of a dual core on-board inductor in one embodiment of the utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Referring to fig. 1 to 2, there is provided a dual-core vehicle-mounted inductor, comprising a housing and a cover plate 50 disposed above the housing, wherein an induction receiving portion is disposed inside the housing, the induction receiving portion comprises a first core 10, a second core 20 and a coil wound around the first core 10 and the second core 20, the coil comprises a first coil winding 80 wound around the first core 10 and a second coil winding 70 wound around the second core 20, the first coil winding 80 and the second coil winding 70 are respectively provided with rectifiers 90 connected in series therewith, and the two rectifiers 90 are connected in parallel.

In this embodiment, the casing includes shell 30 and inner shell 40, shell 30 is equipped with and holds chamber 301 with inner shell 40 appearance assorted first, inner shell 40 is equipped with the second and holds chamber 401, the response receiver is installed in second holds chamber 401, the response receiver constitutes a whole with inner shell 40 through filling the filling thing, it places the whole laminating that response receiver constitutes with inner shell 40 in first holds chamber 301, because shell 30 is equipped with the opening 302 that holds chamber 301 intercommunication with first, cover plate 50 covers and locates on opening 302, make response receiver and inner shell 40 be fixed in the first of shell 30 hold chamber 301, avoid response receiver and inner shell 40 to take place to rock and influence the stability that double core on-vehicle inductor used, avoid the train to take place outside factors such as rubble striking to cause the damage to response receiver simultaneously under high-speed operation, carry out an effectual protection to response receiver.

Specifically, the induction receiving portion includes a first iron core 10, a second iron core 20, and a first coil winding 80 and a second coil winding 70 wound around the first iron core 10 and the second iron core 20, where the first coil winding 80 and the second coil winding 70 are respectively provided with rectifiers 90 connected in series with the first coil winding 80 and the second coil winding 70, the rectifiers 90 are provided with an ac input end 901 and a dc output end 902, the ac input ends 901 of the two rectifiers 90 are connected in series with the first coil winding 80 and the second coil winding 70 respectively, the dc output ends 902 of the two rectifiers 90 are connected in parallel to form a rectifier bridge output group, the ac voltage signal is converted into a dc voltage signal after being processed by the rectifier bridge output group, the lines of the dc output end 902 are connected in parallel, the nodes are connected to form a line after being connected to a line, the host, the dc voltage signal is input to the host, the problem that the two coil windings are directly connected in parallel and a reverse current phenomenon is harmful to the safety of the device is avoided, and the host has ac-dc operation compatibility, thereby the normal operation of the vehicle-mounted inductor is ensured, if one of the coil windings has a transmission line fault, and the other end of the parallel structure is connected in parallel, the other coil winding can still maintain normal operation, even if the other driving device is still stable.

Further, the number of turns of the first coil winding 80 and the second coil winding 70 is the same, and the materials selected are consistent.

Further, the first iron core 10, the second iron core 20 and the coil are placed in the second accommodating cavity 401, then the gap between the first iron core 10, the second iron core 20 and the inner wall of the coil and the second accommodating cavity 401 is filled with filling materials, the coil and the iron core 50 are fixed in the inner shell 40 to form a whole, stability of the induction receiving part is facilitated to be maintained, the filled filling materials can be epoxy resin, the epoxy resin has thermosetting property and good manufacturability, the cured material of the epoxy resin has high strength and bonding strength, the epoxy resin is suitable for being used as the filling materials of the vehicle-mounted inductor, meanwhile, the epoxy resin is filled between the induction receiving part and the inner shell 40, water tightness of the double-iron-core vehicle-mounted inductor can be improved, and the induction receiving part is prevented from being damaged due to being in a humid environment for a long time.

Preferably, the inner wall of the second accommodating cavity 401 is roughened, and the adhesion of the inner wall to the epoxy resin can be enhanced by roughening the inner wall, which is beneficial to further enhancing the integral connection of the induction receiving portion and the inner shell 40.

Further, the double-core vehicle-mounted inductor adopts the structural design of the inner and outer double-layer shells of the outer shell 30 and the inner shell 40, so that the strength of the double-core vehicle-mounted inductor is enhanced, an effective protection can be formed for the induction receiving part, and the stability and the safety of the double-core vehicle-mounted inductor in use are ensured during train operation.

Further, the induction receiving portion further includes an outgoing cable electrically connected to the first coil winding 80 and the second coil winding 70, and the cover plate 50 is provided with a through hole through which the outgoing cable extends, the through hole is communicated with the opening 302, and the outgoing cable extends out of the through hole to be connected to the host.

In one embodiment of the utility model, the upper portion of the housing 30 is provided with a mounting portion 303 extending outwardly from the opening 302, the mounting portion 303 being in locking engagement with the cover plate 50 by the security bolts 60.

In this embodiment, because the shell 30 and the cover plate 50 are locked by the screw-fit through the safety bolts 60, the shell 30 and the cover plate 50 are detachably connected, when external factors such as broken stone impact occur under high-speed running of the train to damage the appearance of the double-core vehicle-mounted inductor, the shell 30 or the cover plate 50 can be detached and replaced through the elastic safety bolts 60, the inner shell 40 and the induction receiving part inside are not required to be replaced, and the shell 30 and the cover plate 50 are detachably connected, so that the maintenance cost is effectively reduced while the maintenance is facilitated.

Further, the mounting portion 303 and the side wall of the housing 30 have an L-shaped cross section, which can effectively support the cover plate 50.

In one embodiment of the present utility model, the upper surface of the cover plate 50 is provided with a fastening frame for fixing the outgoing cable protruding out of the through hole, and the fastening frame is fixed to the upper surface of the cover plate 50 by screws.

In this embodiment, the fastening frame can effectively fix the outgoing cable on the upper surface of the cover plate 50, so as to avoid the pulling of the outgoing cable and the damage of equipment caused by the shaking of the outgoing cable from side to side or up and down during the running of the train.

Preferably, the part of the outgoing cable extending out of the through hole is provided with a protective sleeve, and the protective sleeve is used for protecting the outgoing cable, so that the outgoing cable is prevented from being damaged due to the influence of external factors.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a on-vehicle inductor of double core, its characterized in that includes casing and cover plate (50) of setting in the casing top, the inside response receiver that is equipped with of casing, response receiver include first iron core (10), second iron core (20) and wind in coil of first iron core (10) and second iron core (20), coil including wind in first coil winding (80) of first iron core (10) with wind in second coil winding (70) of second iron core (20), first coil winding (80) and second coil winding (70) are equipped with rectifier (90) that establish ties with it respectively, two parallel connection between rectifier (90).

2. The dual core vehicle mounted inductor of claim 1 wherein said rectifiers (90) are provided with ac input terminals (901) and dc output terminals (902), said ac input terminals (901) of two of said rectifiers (90) being connected in series with said first coil winding (80) and second coil winding (70), respectively, and said dc output terminals (902) of two of said rectifiers (90) being connected in parallel to form a rectifier bridge output set.

3. The dual core onboard inductor of claim 1, wherein the induction receiving portion further comprises an outgoing cable electrically connected to the first coil winding (80) and the second coil winding (70).

4. A dual core on-board inductor according to claim 3, characterized in that the housing comprises an outer housing (30) and an inner housing (40), the outer housing (30) being provided with a first receiving cavity (301) matching the outer shape of the inner housing (40), the inner housing (40) being mounted in the first receiving cavity (301).

5. The dual core vehicle mounted inductor as claimed in claim 4, wherein the inner housing (40) is provided with a second receiving cavity (401), the induction receiving portion being mounted in the second receiving cavity (401), the induction receiving portion being integral with the inner housing (40) by filling a filler.

6. The dual core vehicle mounted inductor as claimed in claim 4, wherein the housing (30) is provided with an opening (302) communicating with the first receiving cavity (301), the cover plate (50) is covered on the opening (302), and the housing (30) is detachably connected with the cover plate (50).

7. The dual core vehicle mounted inductor as claimed in claim 6, wherein the upper portion of the housing (30) is provided with a mounting portion (303) extending outwardly from the opening (302), the mounting portion (303) being in locking engagement with the cover plate (50) by means of a safety bolt (60).

8. The dual core onboard inductor of claim 7, wherein a cross section between the mounting portion (303) and a side wall of the housing (30) is L-shaped in configuration.

9. The dual core onboard inductor of claim 6 or 7, wherein the cover plate (50) is provided with a through hole through which the outgoing cable extends, the through hole being in communication with the opening (302), the outgoing cable extending out of the through hole and being connected to a host.

10. The dual core vehicle-mounted inductor according to claim 9, wherein the upper surface of the cover plate (50) is provided with a fastening frame for fixing the outgoing cable protruding out of the through hole, and the fastening frame is fixed to the upper surface of the cover plate (50) by screws.