CN210517656U - Rapid freight transport motor train unit and under-train wire way thereof - Google Patents

Abstract

The utility model discloses a rapid freight transportation motor train unit and an under-train wire way thereof, wherein the under-train wire way comprises a wire way body, a wire way cover and a wire way lifting lug; the wire casing cover is matched with the notch of the wire casing body to form an inner accommodating cavity; the wire casing lug is the laminating the strip form that the wire casing outer wall set up, and its both ends stretch out in the top of wire casing forms the installation department that is used for with automobile body fixed connection. This scheme can effectively strengthen the protectiveness to the pencil through configuration optimization, on the basis of wire casing installation reliability, under the car space can be fully utilized, provides good technical guarantee for whole car signal transmission and vehicle operation safety.

Description

Rapid freight transport motor train unit and under-train wire way thereof

Technical Field

The utility model relates to a rail vehicle technical field, concretely relates to quick freight transportation EMUs and wire way under car thereof.

Background

With the rapid development of rail transit vehicles, the running environment under the motor train unit also tends to be complex, and the reliable arrangement of cables under the motor train unit directly influences the safety and stability of the running of the whole motor train unit. The prior art uses open rectangle wire casing under the car, can't satisfy the higher requirement to pencil protection, fixed, and in the actual operation process, the pencil is easy to be hit by the sand wind and the fixed hidden danger that drops appears.

In addition, the wire harnesses with different frequencies are mixed together, and the wire harnesses radiate mutually, so that the electromagnetic environment of the off-vehicle wire harness is poor, and the signal transmission and the vehicle operation safety are influenced.

In view of this, it is needed to provide a solution for the lower train cable arrangement of the motor train unit with quick freight transportation to effectively improve the safety and reliability.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rapid freight transportation EMUs and wire way under car can effectively strengthen the protectiveness to the pencil through configuration optimization.

The utility model provides a fast freight transportation EMUs wiring duct under car, including the wire casing body, wire casing lid and wire casing lug; the wire casing cover is matched with the notch of the wire casing body to form an inner accommodating cavity; the wire casing lug is the laminating the strip form that the wire casing outer wall set up, and its both ends stretch out in the top of wire casing forms the installation department that is used for with automobile body fixed connection.

Preferably, the method further comprises the following steps: and the grounding component is electrically connected to the top of the wire casing cover and/or the side surface of the wire casing body so as to establish grounding connection with the vehicle body.

Preferably, a preset wire outlet hole is formed in the wire slot cover.

Preferably, the slot cover has a plurality of removable portions forming the pre-arranged outlet holes, each of the removable portions being connected to the body of the slot cover by a local virtual joint.

Preferably, the outer contour of the cross section of the wire groove body is in a polygonal shape matched with the edge beam of the vehicle body in a fitting mode, and the wire groove body is provided with at least two compartments formed in a separating mode along the length direction of the wire groove.

Preferably, a plurality of lightening holes are formed in the side wall of the wire groove body, and the lightening holes are in a shape matched with the strapping tape.

Preferably, the two side edges of the wire casing cover and the upper edges of the two side walls of the wire casing body, which form the notch, are respectively provided with a buckle adapting part.

Preferably, one side edge of the wire casing cover is bent inwards to form a clamping groove, and the upper edge of the side wall of the wire casing body on the corresponding side is bent outwards to form an insertion part matched with the clamping groove to form a first buckle matching part; the other side of the wire casing cover is bent downwards to form a press-fit section, an inner convex portion is arranged on the inner wall of the press-fit section, an outer convex portion matched with the inner convex portion is arranged on the side wall of the wire casing body on the corresponding side, and a second buckle matching portion is formed.

Preferably, an elastic pad is arranged between the clamping groove and the adapting surface of the inserting part.

The utility model also provides a motor train unit of express freight transportation, including under-train wire way, under-train wire way adopt as before under-train wire way of motor train unit of express freight transportation.

Compared with the prior art, the utility model discloses innovatively proposed the electric wire way scheme under the car to quick freight transportation EMUs, specifically, the notch of its wire way body is formed at the top, has the lateral wall with car body boundary beam laminating adaptation, to complicated space environment under the car, promotes space utilization; an inner containing cavity is formed by the matched wire casing cover, so that the inner part of the wire casing is sealed, and the protection performance on the wire harness can be effectively improved; meanwhile, the wire slot lifting lug is in a strip shape which is attached to the outer wall of the wire slot body, and the two ends of the wire slot lifting lug extend out of the mounting part at the top end of the wire slot body, so that the mounting reliability of the wire slot can be greatly improved. So set up, this scheme can avoid the pencil completely and hit the hidden danger of beating by the sand blown by the wind, on the basis of wire casing installation reliability, provides good technical guarantee for whole car signal transmission and vehicle operation safety.

In the preferred scheme of the utility model, the grounding part is arranged at the top of the wire slot cover and/or the side surface of the wire slot body to establish grounding connection with the vehicle body, so that all the wire slots connected with each other have the same ground potential, thereby providing a low-impedance path for the current flowing through the induced current on the surface of the wire slot and releasing the static electricity and high-frequency interference current accumulated on the wire slot cover; meanwhile, induced charges outside the wire slot can be introduced into the ground, so that the existence of an induced electric field is avoided, and the electromagnetic shielding capability of the wire slot can be effectively improved. That is, by effectively blocking the induced electric field, a good EMC electrical environment is formed.

In another preferred scheme of the utility model, the wire hole on the wire casing cover adopts the preset mode to form, forms a plurality of preset wire holes through the removable part, so set up, based on the characteristics that the removable part links to each other through local virtual contact between the wire casing cover body, can select corresponding removable part to handle and form corresponding wire hole according to actual need, have better adaptability; in addition, on the basis of meeting specific wiring requirements, the protection performance of the wire harness in the wire casing can be ensured to the maximum extent.

In another preferable scheme of the utility model, a plurality of lightening holes are arranged on the side wall of the wire groove body, and the lightening holes have a shape matched with the strapping tape; therefore, on one hand, the weight of the wire chase can be reduced, and the running load of the whole vehicle can be effectively controlled; on the other hand, the lightening hole can be used as a beam splitting, bundling and fixing foundation of the wire harness, so that the ribbon and the wire casing body form double fixation on the wire harness.

Drawings

FIG. 1 is a schematic overall structure diagram of a lower wire way of a motor train unit for express freight transportation according to an embodiment;

FIG. 2 is a schematic view of the assembled relationship of the lower wire troughs of the motor train unit for express cargo transportation shown in FIG. 1;

FIG. 3 is a schematic view of a wire-chase lifting lug shown in the direction A of FIG. 2;

figure 4 is a schematic view of an alternative trunking lug shown in the direction a in figure 2;

fig. 5 is a schematic view of the assembly relationship between the slot body and the slot cover;

FIG. 6 is an enlarged partial schematic view of the first snap fit portion;

FIG. 7 is a partial top view of the wire chase cover;

FIG. 8 is an enlarged view of portion B of FIG. 7;

fig. 9 is a schematic view of the overall structure of the under-train wire way of the motor train unit for express freight transportation according to the second embodiment.

In the figure:

the wire casing comprises an under-vehicle wire casing 10, a wire casing body 1, an insertion part 11, an outer convex part 12, a first opening and closing part 13, a wire casing partition 14, lightening holes 15, a wire casing cover 2, a clamping groove 21, a press-fit section 22, an inner convex part 221, a second opening and closing part 23, a preset wire outlet hole 24, a removable part 25, a local virtual contact 26, a wire casing lifting lug 3, a first installation part 31, a second installation part 32, a grounding part 41, a flat grounding wire 42 and an elastic pad 5;

the vehicle body 20, the vehicle body cross beam 201 and the vehicle body side beam 202.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Without loss of generality, the embodiment takes the rapid freight transportation motor train unit body with the structure shown in the drawing as a description subject, and the technical scheme of the under-train wire way is explained in detail. It should be understood that the lower assembly space formed by the body cross member and the body side member of the main body structure is only an exemplary illustration, and the specific structure thereof does not substantially limit the under-vehicle wire way claimed in the present application.

The first embodiment is as follows:

referring to fig. 1 and fig. 2, fig. 1 is a schematic view of an overall structure of a lower wire way of the motor train unit for express freight transportation according to the embodiment, and fig. 2 is a schematic view of an assembly relationship of the lower wire way of the motor train unit for express freight transportation shown in fig. 1.

This under-vehicle wire way 10 mainly comprises wire casing body 1, wire casing lid 2 and wire casing lug 3, and wire casing lid 2 forms inside appearance chamber with the top notch adaptation of wire casing body 1, constructs inside relatively confined appearance line space from this, forms the protection of wrapping up entirely. In this scheme, the wire casing 1 has the lateral wall with the adaptation of automobile body boundary beam 202 laminating, as shown in the figure, its cross section of preferred adopts the design of polygon outline to space utilization under the promotion car. The wire casing lug 3 is the strip form that the outer wall of laminating wire casing body 1 set up, and its both ends stretch out and form the installation department that is used for with automobile body 20 fixed connection in the top of wire casing body 1, can strengthen the fixity greatly. The first mounting portion 31 is used for being mounted and fixed to the vehicle body cross member 201, and the second mounting portion 32 is used for being mounted and fixed to the vehicle body side member 202.

Please refer to fig. 3, which is a view along direction a of fig. 2. It is understood that fig. 3 can present a view along the length direction of the under-carriage wire way 10, and fig. 3 is only partially illustrated for the sake of simplifying the view and clearly showing the structure of the wire way lug 3 and the assembling relationship thereof. Specifically, the first mounting portion 31 and the second mounting portion 32 may be respectively provided with bolt insertion holes to enable quick assembly with the corresponding vehicle body parts using threaded fasteners. Of course, the corresponding bolt through hole is preferably a long hole, so that the bolt has better assembly manufacturability on the basis of meeting the requirement of reliable fixed connection.

In the scheme, the strip-shaped wire casing lifting lug 3 is formed by integrally forming the component and can be coated on the outer wall of the wire casing body 1 to form good positioning and fastening; it should be understood that the "strip-shaped" is not limited to a uniform cross-section member, and may be designed according to the corresponding mounting and fixing positions on the car body cross beam 201 and the car body side beam 202, for example, when the mounting position on the car body cross beam 201 and the mounting position on the car body side beam 202 are mutually staggered along the length direction of the car body, the strip-shaped wire casing lifting lug 3 may also take a non-uniform cross-section form, as shown in fig. 4.

In order to obtain a good EMC electrical environment, the present solution is preferably provided with a grounding part 41 on the top of the wire chase cover 2 and on the side of the wire chase body 3 to establish a grounding connection with the vehicle body. Of course, a grounding part can be selected and arranged between the wire casing cover 2 and the wire casing body 3 according to the specific application vehicle type. As shown in fig. 2, a flat ground wire 42 may be used to perform grounding processing with the vehicle body, so that the connected wire slots all have the same ground potential, thereby providing a low-impedance path for current to flow through for the induced current on the surface of the wire slot, and releasing the static electricity and high-frequency interference current accumulated on the wire slot cover; meanwhile, induced charges on the outer side of the wire slot can be introduced into the ground, so that the existence of an induced electric field is avoided, and the electromagnetic shielding capability of the wire slot can be effectively improved.

As further shown in fig. 5, the figure shows a slot body 1 and slot cover 2 structure which can realize fast assembly and adaptation. The two side edges of the wire casing cover 1 and the upper edges of the two side walls of the wire casing body forming the notch are respectively provided with a buckle adapting part. It is to be understood that the snap-fit arrangement can be implemented in various ways, such as, but not limited to, the preferred structural implementation shown in the figures.

One side (right side in the figure) of the wire casing cover 2 is bent inwards to form a clamping groove 21, and the side wall of the wire casing body 1 on the corresponding side is bent outwards to form an insertion part 11 matched with the clamping groove 21 to form a first buckle matching part. The terms of orientation such as "inside" and "outside" used in the present embodiment are defined based on the description of the internal cavity defined by the slot body 1 and the slot cover 2, and obviously, the use of the terms of orientation does not substantially limit the present embodiment.

The other side (left side in the figure) of the wire casing cover 2 is bent downwards to form a press-fit section 22, the inner wall of the press-fit section 22 is provided with an inner convex part 221, the side wall of the wire casing body 1 on the corresponding side is provided with an outer convex part 12 matched with the inner convex part 221, and a second buckle matching part is formed.

During actual assembly, after the corresponding wire harness is placed in the wire slot, the clamping groove 21 of the wire slot cover 2 is firstly sleeved on the insertion part 11 of the wire slot body 1 matched with the wire slot cover, and the wire slot body and the clamping part are clamped; then, the press-fit section 22 side of the wire groove cover 2 is pressed downwards, the inner convex part 221 on the press-fit section slides downwards to pass through the outer convex part 12 on the outer wall of the wire groove body 1, and the two are clamped, so that the basic assembly of the wire groove can be completed quickly. Of course, the fitting surfaces of the inner convex portion 221 and the outer convex portion 12 are smoothly transited.

In addition, on the second snap-fit portion side, the slot body 1 and the slot cover 2 are respectively provided with an opening and closing portion. When the vehicle needs to be normally overhauled during operation, an operator can respectively hold the first opening and closing part 13 on the wire casing body 1 and the second opening and closing part 23 on the wire casing cover 2, so that the force can be conveniently applied to quickly open the wire casing cover 2. Preferably, the wire casing body 1 and the wire casing cover 2 can be respectively made of sectional materials, so that the manufacturing cost of the product can be effectively controlled.

In addition, in order to facilitate the above-mentioned buckling operation and avoid the possible clamping stagnation phenomenon, the first buckle adapting portion can be further optimized, please refer to fig. 6. On one hand, the gap between the clamping groove 21 and the inserting part 11 can be increased, a redundant space between the clamping groove and the inserting part in the buckling process is provided, and the elastic pad 5 is arranged between the adapting surfaces of the clamping groove and the inserting part. So set up, the relative position change in the lock process can press and support 5 deformations of cushion, and cushion 5 can keep the zero clearance fit between the two after the lock is accomplished, avoids the production of vehicle operation noise. As further shown in fig. 6, the elastic pad 5 is integrally bent and disposed between the engaging groove 21 and the insertion portion 11.

Generally, each type of wire harness needs to correspond to the wire outlet port, and the scheme provides a reasonable wiring structure. Referring to fig. 7 and 8, fig. 7 is a partial top view of the wire casing cover according to the present embodiment, and fig. 8 is an enlarged view of a portion B of fig. 7.

The wire casing cover 2 is provided with preset wire outlet holes 24, and preferably a plurality of preset wire outlet holes 24 are arranged, so that selective application can be performed according to different wire outlet positions, and the actual requirements of wiring harness routing are met. In the scheme, removable parts 25 are adopted to form corresponding preset wire outlet holes 24, as shown in fig. 8, each removable part 25 is connected with the body of the wire slot cover 2 through a local virtual contact 26; that is, the structure form of the initial setting is shown in the figure, and based on the design characteristics of the local virtual joint 26, the preset outlet hole 24 can be formed by knocking off the removable part 25 at a specific position during assembly, so that the preset outlet hole has good adaptability; in addition, on the basis of meeting specific wiring requirements, the protection performance of the wire harness in the wire casing can be ensured to the maximum extent.

It should be noted that the local virtual joint 26 refers to a weak area of the connection between the two structures, and is not limited to a point-like geometry, as long as it is capable of facilitating the on-site quick knock-off of the removable portion 25 to form the preset outlet hole 24, and is within the scope of the present application.

In order to further provide excellent electromagnetic compatibility, the wire casing body 1 can be set into three compartments which are formed by separating along the length direction of the wire casing body, so as to avoid mutual radiation of wire harnesses with different frequencies. With reference to fig. 1, a bulkhead design is adopted, different wire harnesses are respectively distributed in different bulkheads to separate the propagation path of radiation interference between different cables, a full-path wire harness (sensing and communication wire harnesses) is separated and grounded by a soft metal shielding wire tube (zipper hose), and the specific wire harness subdivision principle is as follows: the alternating current wiring harness and the direct current wiring harness are arranged in a separated mode, and the signal wiring harnesses in the alternating current wiring harness are arranged in a separated mode.

Preferably, the upper edge of the wire duct partition 14 forming the compartment is attached to the wire duct cover 2. Therefore, the propagation path of radiation interference between different types of cables is cut off, and the overall rigidity of the under-vehicle wire slot can be further improved by reducing the gap between the two cables.

As is well known, the running load of the motor train unit with fast freight directly affects the performance of the whole motor train unit, and in order to avoid reasonable control of the dead weight, a plurality of lightening holes 15 are preferably formed in the side wall of the wire casing 1, and the lightening holes 15 have a shape matched with a strapping tape (not shown in the figure). Like this, fixed basis is tied up in the beam splitting that this lightening hole 15 can have the pencil concurrently, and accessible lightening hole 15 is fixed when also the pencil ribbon uses, and the ribbon forms dual fixed with the cell body 1 to the pencil to under the unchangeable condition of wire casing weight, bearing capacity and protective capacities all effectively promote.

Example two:

the main structure of this embodiment is the same as that of the first embodiment, except that the wire casing 1 has two compartments partitioned along the length direction of the wire casing.

Referring to fig. 9, a schematic diagram of an overall structure of the under-train wire way of the motor train unit for express freight transportation according to the present embodiment is shown. For the purpose of clearly illustrating differences and connections between the two embodiments, the same functional configurations and structures are shown by the same reference numerals in the drawings.

In addition to the under-train wire way, the embodiment also provides a quick freight transportation motor train unit applying the under-train wire way. Other functions of the fast freight multiple unit train are not the core invention point of the application, and therefore are not described in detail herein.

Preferably, the high-pressure side wire casing of each group of motor cars adopts a double-compartment design shown in the second embodiment, and the low-pressure side wire casing adopts a three-compartment design shown in the first embodiment.

The wire casing 1 according to the present embodiment is not limited to the polygonal wire casing structure shown in the drawings, and may be any one that can be more closely attached to the body side member 202 and the cross member 21 and meet the basic functional requirements for improving the space utilization under the vehicle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a rapid freight transportation EMUs wiring duct under car which characterized in that includes:

the wire groove body is provided with a side wall which is fit with a side beam of the vehicle body;

the wire groove cover is matched with the notch of the wire groove body to form an inner containing cavity;

the wire casing lug, the wire casing lug is the laminating the strip form that wire casing outer wall set up, and its both ends stretch out in the top of wire casing forms the installation department that is used for with automobile body fixed connection.

2. The off-train wire way of the motor train unit for express freight according to claim 1, further comprising:

and the grounding component is electrically connected to the top of the wire casing cover and/or the side surface of the wire casing body so as to establish grounding connection with the vehicle body.

3. The off-train wire way of the motor train unit capable of rapid freight transportation according to claim 2, wherein a preset wire outlet hole is formed in the wire way cover.

4. The electrical trunking train unit under express freight transportation train unit of claim 3 wherein the trunking cover has a plurality of removable portions forming the pre-existing outlet holes, each of the removable portions being connected to the body of the trunking cover by a partially phantom joint.

5. The under-train wire way of the express freight multiple unit train as claimed in any one of claims 1 to 4, wherein the cross-sectional outer contour of the wire way body is in a polygonal shape fitted with a side beam of the train body, and the wire way body is provided with at least two compartments partitioned along the length direction of the wire way body.

6. The under-train wire way of the express freight multiple unit train as claimed in any one of claims 1 to 4, wherein a plurality of lightening holes are formed in the side wall of the wire way body, and the lightening holes are in a shape matched with the strapping tape.

7. The under-train wire way of the express freight multiple unit train as claimed in any one of claims 1 to 4, wherein a snap fit portion is respectively provided between two side edges of the wire way cover and two side wall upper edges of the wire way body forming the notch.

8. The electrical trunking for quick freight transportation motor train unit unloading according to claim 7, wherein one side edge of the trunking cover is bent inwards to form a clamping slot, and the side wall of the trunking body on the corresponding side is bent outwards to form an inserting part matched with the clamping slot to form a first buckling matching part; the other side of the wire casing cover is bent downwards to form a press-fit section, an inner convex portion is arranged on the inner wall of the press-fit section, an outer convex portion matched with the inner convex portion is arranged on the side wall of the wire casing body on the corresponding side, and a second buckle matching portion is formed.

9. The quick freight multiple unit train lower wire way according to claim 8, wherein an elastic pad is arranged between the clamping groove and the adapting surface of the inserting portion.

10. The motor train unit for express freight transportation comprises an under-train wire way, and is characterized in that the under-train wire way is the under-train wire way of the motor train unit for express freight transportation according to any one of claims 1 to 9.

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