Transformer

Abstract

An arrangement comprising a transformer (1) and a rail vehicle having a base (7), wherein the transformer (1) comprises two coils (2, 3), each coil (2, 3) having a core and multiple windings, wherein the coils (2, 3) are held in a support structure (4), the support structure (4) having feet (5, 6) for placing the support structure (4) on the base (7), wherein the coils (2, 3) are oriented horizontally to the base (7) or a running surface, and wherein the longitudinal axes of the coils (2, 3) are oriented horizontally by placing the support structure (4) on the base (7), wherein the coils (2, 3) are connected to each other, wherein the feet (5, 6) have openings for fixing the support structure (4) to the base (7), screws being passed through the openings to bolt the support structure to the base (7), and wherein the coils are connected to each other are stuck together,wherein the windings of a single coil are connected to each other and / or to the core to prevent slippage, the connection being made with an adhesive.

Description

[0001] The invention relates to an arrangement comprising a transformer and a vehicle.

[0002] DE 35 08 327 A1 discloses a current transformer with insulating bodies that surround a conductor rail. CN 203 055 600 U discloses a horizontal coil arrangement. WO 2016 / 038222 A1 discloses a traction transformer for rail vehicles, the transformer core of which is arranged outside a housing and with fastening means attached to the transformer core. EP 2 549 495 A1 discloses a transformer intended for use in rail vehicles. It is designed for a horizontal, flat-frame arrangement and can therefore be integrated into the underfloor area of ​​a locomotive or wagon.

[0003] Transformers, or rather their coils, are often installed with their longitudinal axes oriented vertically. This results in a relatively high overall height. Furthermore, transformers are typically not designed to withstand strong vibrations without sustaining damage.

[0004] However, in certain applications, it is necessary to install a transformer in an engine room, particularly in a rail vehicle. Often, only a limited amount of space is available in an engine room for installing a transformer. Furthermore, a transformer in a vehicle's engine room may be subject to significant vibrations.

[0005] The invention is therefore based on the objective of designing and further developing a transformer in such a way that it exhibits the longest possible operating time in a vehicle while maintaining a low and compact design.

[0006] According to the invention, the foregoing problem is solved by a transformer having the features of claim 1.

[0007] According to the invention, it was first recognized that existing transformers need to be modified to enable their use in the engine room of vehicles, particularly rail vehicles. It was further recognized that, in particular, voltage clearances must be maintained within a confined space and that the transformer must withstand significant mechanical loads. A suitable support structure allows the coils to be arranged horizontally relative to a base. This ensures that a certain overall height is not exceeded, even if the coils are relatively long. Furthermore, the coils are mounted within the support structure to dampen vibrations.

[0008] The feet have means for fixing the support structure to the base. These means are designed as passages for screws. This ensures that the transformer is securely and immobilely connected to a vehicle.

[0009] Particularly preferably, the support structure has two spaced-apart feet, with a press beam projecting from each foot and the coils extending between the press beams. This allows the coils to be stacked on top of each other in the support structure so that their longitudinal axes are oriented parallel. The coils can be fixed to the press beams and mounted to prevent vibrations.

[0010] A further advantage is that the press beam is provided with at least one brace and / or reinforcement for stiffening. This allows large forces in or across the direction of travel of the vehicle to be compensated without the press beam bending noticeably. Bending or compression of the press beam is also prevented. Furthermore, displacement of the coils is avoided.

[0011] In order to control large forces in the direction of travel, perpendicular to the direction of travel and in the vertical direction, the connections to the surface, especially a vehicle floor, must be designed in a special way.

[0012] The feet are advantageously connected by a central strut. This allows large forces in or across the direction of travel of the vehicle to be compensated for without the press beams noticeably bending. Furthermore, it effectively prevents the coils from slipping.

[0013] The central strut extends advantageously parallel to the longitudinal axes of the coils. This prevents compression of the support structure in the direction of the longitudinal axis of the coils.

[0014] The windings of a single coil are connected to each other and / or to the core of the respective coil to prevent bending or slippage. This connection is made using an adhesive.

[0015] The windings are advantageously arranged horizontally and one above the other. This prevents the windings from slipping.

[0016] The coils are interconnected. This ensures that the position of the coils relative to each other remains constant even under strong vibrations. The coils are glued together.

[0017] The arrangement comprises a transformer of the type described here and a vehicle which has a base, wherein the coils are oriented horizontally to the base or a driving plane.

[0018] The transformer described here is primarily used in rail vehicles, specifically in railway operations. Railway operations involve particularly strong vibrations, making this transformer especially suitable for this application.

[0019] The support structure can be advantageously connected to the car body of a rail vehicle. Despite given dimensions, vibrations, and mass, a high degree of efficiency can thus be ensured and material fatigue can be counteracted.

[0020] The drawing shows Fig. 1 a perspective view of a transformer in which the longitudinal axes of the coils are oriented horizontally to a base, and Fig. 2 a view of the support structure in which the coils are arranged according to Fig. 1 are stacked on top of each other.

[0021] Fig. Figure 1 shows a transformer 1 comprising two coils 2, 3, each coil 2, 3 having a core and several windings and the coils 2, 3 being held in a support device 4.

[0022] The support device 4 has feet 5, 6 for placing the support device 4 on a base 7, wherein the longitudinal axes of the coils 2, 3 can be horizontally oriented by placing the support device 4 on the base 7. In this specific case, the longitudinal axes are arranged parallel to each other and horizontally.

[0023] The feet 5, 6 have means 8, namely passages, for fixing the support device 4 to the base 7. Screws can be passed through the passages to bolt the support device 4 to the base 7.

[0024] The support device 4 has two feet 5, 6 spaced apart from each other, with a press beam 9, 10 projecting from each foot 5, 6 and with the coils 2, 3 extending between the press beams 9, 10.

[0025] Fig. Figure 2 shows that a press beam 9, 10 is provided with bracing 11 and / or reinforcements for stiffening.

[0026] Fig. Figure 2 further shows that the feet 5, 6 are connected to each other by a central strut 12.

[0027] The central strut 12 extends parallel to the longitudinal axes of the coils 2, 3.

[0028] The windings of a single coil 2, 3 are connected to each other and / or to the core to prevent bending or slippage. The windings are arranged horizontally and one above the other.

[0029] Coils 2 and 3 are also connected to each other.

[0030] The one from Fig.One known transformer 1 can advantageously be arranged on a vehicle which has a base 7, wherein the coils 2, 3 are oriented horizontally to the base 7 or a running surface. The vehicle can be designed as a rail vehicle. Reference symbol list 1 transformer 2 coils 3 coil 4 Support device 5 feet 6 feet 7. Document 8 Medium 9 press beams 10 press beams 11 Strut 12 Center brace

Claims

[1] Arrangement comprising a transformer (1) and a rail vehicle having a base (7), wherein the transformer (1) comprises two coils (2, 3), each coil (2, 3) having a core and several windings, wherein the coils (2, 3) are held in a support structure (4), the support structure (4) having feet (5, 6) for setting up the support structure (4) on the base (7), wherein the coils (2, 3) are oriented horizontally to the base (7) or a running surface, and wherein the longitudinal axes of the coils (2, 3) are oriented horizontally by setting up the support structure (4) on the base (7), wherein the coils (2, 3) are connected to each other, wherein the feet (5, 6) have openings for fixing the support structure (4) on the base (7), wherein screws are passed through the openings to bolt the support structure to the base (7), wherein the coils are glued together,wherein the windings of a single coil are connected to each other and / or to the core to prevent slippage, the connection being made with an adhesive. [2] Arrangement according to claim 1, characterized by , that the feet (5, 6) have means (8) for fixing the support device (4) to the base (7). [3] Arrangement according to claim 1 or 2, characterized by , that the support device (4) has two feet (5, 6) spaced apart from each other, with a press beam (9, 10) projecting from each foot (5, 6) and with the coils (2, 3) extending between the press beams (9, 10). [4] Arrangement according to claim 3, characterized by , that a press beam (9, 10) is provided with at least one bracing (11) and / or reinforcement for stiffening. [5] Arrangement according to one of the preceding claims, characterized by , that the feet (5, 6) are connected to each other by a central strut (12). [6] Arrangement according to claim 5, characterized by , that the central strut (12) extends parallel to the longitudinal axes of the coils (2, 3). [7] Arrangement according to one of the preceding claims, characterized by that the windings are arranged horizontally and one above the other.

Images