CN215816412U

CN215816412U - BTM antenna housing with prevent automobile body conduction electromagnetic interference function

Info

Publication number: CN215816412U
Application number: CN202121389558.5U
Authority: CN
Inventors: 党海笑; 白英杰; 孟天旭; 牛江涛; 刘卿君; 崔莉
Original assignee: CRSC Research and Design Institute Group Co Ltd
Current assignee: CRSC Research and Design Institute Group Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-02-11
Anticipated expiration: 2031-06-22

Abstract

The utility model provides a BTM antenna shell with a function of preventing electromagnetic interference conducted by a vehicle body, which comprises a body, an accommodating cavity and an insulating device, wherein the body is a closed shell, the accommodating cavity for accommodating a BTM antenna is formed in the body, the body is provided with a connecting device for connecting the vehicle body, and the insulating device is arranged between the connecting device and the vehicle body. According to the utility model, through the arranged insulation device, the insulation connection between the body and the train body is realized, so that disturbance signals can be prevented from interfering the BTM antenna positioned in the accommodating cavity through the train body and the BTM antenna shell, the safety and reliability of signal transmission in the running process of the train are improved, and the problem of failure of a transponder transmission system caused by the disturbance signals is reduced.

Description

BTM antenna housing with prevent automobile body conduction electromagnetic interference function

Technical Field

The utility model belongs to the field of railway signal transmission equipment, and particularly relates to a transponder transmission unit (BTM) antenna shell with a function of preventing electromagnetic interference conducted by a vehicle body.

Background

In recent years, the problem of failure of a transponder transmission system frequently occurs in motor train units all over the country, the train-ground communication is influenced, and the driving safety is damaged. The failure types of the transponder transmission system comprise all-zero messages, ghost transponders, message loss and the like.

BTM is fixed with vehicle bottom with the mode of hanging usually, through carrying out electromagnetic compatibility index and capability test, test the electromagnetic environment inside and outside the car, the discovery arouses that the fault part reason probably is because the train passes through to distinguish or when going up and down the bow, harassing signal passes through the automobile body conduction and influences the normal work of transponder transmission system, does not have better scheme to solve at present to this, for guaranteeing train operation in-process signal transmission's safety and reliability, need to deal with this problem urgently.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model discloses a novel BTM antenna shell which can greatly reduce the influence of disturbance signals conducted by a vehicle body on a BTM antenna.

A BTM antenna housing with anti-vehicle body conducted electromagnetic interference functionality, comprising: the body is a closed shell, the accommodating cavity used for accommodating the BTM antenna is constructed in the body, the body is provided with a connecting device used for connecting a vehicle body, and the insulating device is arranged between the connecting device and the vehicle body.

Further, the connecting device is arranged at the edge of the body and on one side close to the vehicle body;

the connecting device comprises a plurality of connecting bosses and fasteners in one-to-one correspondence with the connecting bosses, and the connecting bosses are fixed with lifting lugs positioned at the bottom of the vehicle body through the fasteners.

Furthermore, a connecting through hole is formed in the connecting boss, and the fastening piece is a threaded connecting piece.

Further, the insulation device comprises a first insulation part arranged on the surface of the connecting boss and a second insulation part arranged on the inner surface of the connecting through hole.

Further, the fastener is a bolt and a nut, and the bolt penetrates through the connecting through hole and the lifting lug to be connected with the nut.

Further, the first insulating part is an insulating rubber mat, and the insulating rubber mats are arranged among the bolts, the connecting bosses, the lifting lugs and the nuts.

Further, the second insulating portion is an insulating seal layer.

Further, the body is the cuboid box, the connection boss has four, is located the position of four apex angles at cuboid box top respectively.

Further, the outer surfaces of the bolt and the nut are also coated with an insulating material.

Further, the body and the fastener are made of metal or alloy.

The utility model discloses a BTM antenna shell with a function of preventing electromagnetic interference conducted by a vehicle body, which comprises a body, an accommodating cavity and an insulating device, wherein the body is a closed shell, the accommodating cavity for accommodating a BTM antenna is formed in the body, the top of the body is provided with a connecting device for connecting the vehicle body, and the insulating device is arranged between the connecting device and the vehicle body. According to the utility model, through arranging the insulation device, the insulation connection between the body and the train body is realized, the disturbance of a disturbance signal to the BTM antenna in the accommodating cavity through the train body and the BTM antenna shell can be avoided, the safety and reliability of signal transmission in the running process of the train are improved, and the problem of the fault of a transponder transmission system generated by the disturbance signal is reduced.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a BTM antenna housing with anti-vehicle conducted EMI features of the present invention;

FIG. 2 is a schematic diagram of the connection of a BTM antenna housing with anti-EMI features to a vehicle body according to the present invention;

FIG. 3 is a schematic three-dimensional block line view of a BTM antenna housing having anti-vehicle body conducted EMI features of the present invention;

FIG. 4 shows a schematic view of the construction of the insulation unit of the present invention;

figure 5 shows a schematic view of the structure of the bottom shackle of the train;

fig. 6 shows a close-up view of the connection device of the utility model.

The main reference numbers in the figures illustrate:

the antenna comprises a 1-BTM antenna shell, a 2-BTM antenna, a 3-vehicle body, a 4-connecting device, a 5-lifting lug, a 6-connecting through hole, a 7-first insulating part, a 8-second insulating part, a 9-bolt, a 10-nut, a 11-body, a 12-containing cavity, a 13-insulating device, a 41-connecting boss and a 42-fastening piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 protection scope of the present invention.

As shown in fig. 1 to 6, a BTM antenna case 1 having a function of preventing electromagnetic interference from being conducted to a vehicle body according to the present invention includes: the antenna comprises a body 11, a containing cavity 12 and an insulating device 13, wherein the body 11 is a closed shell, the containing cavity 12 used for containing the BTM antenna 2 is formed in the body 11, the body 11 is provided with a connecting device 4 used for connecting a vehicle body 3, and the insulating device 13 is arranged between the connecting device 4 and the vehicle body 3.

Referring to fig. 4, the BTM antenna housing 1 of the present invention realizes the insulated connection between the body 11 and the vehicle body 3 through the provided insulation device 13, and can prevent disturbance signals from interfering the BTM antenna 2 located in the accommodating cavity 12 through the train body 3 and the BTM antenna housing 1, thereby reducing the problem of failure of the transponder transmission system, improving the safety and reliability of signal transmission in the train operation process, further reducing the failure rate of the transponder transmission system, improving the working efficiency of the transponder transmission system, and also reducing the maintenance cost of operators due to the transmission failure of the transponder.

Referring to fig. 1 and 2, the connecting device 4 is provided at an edge of the body 11 on a side close to the vehicle body 3;

according to fig. 4, the connecting device 4 includes a plurality of connecting bosses 41 and fastening members 42 corresponding to the connecting bosses 41 one by one, and the connecting bosses 41 are fixed to the lifting lugs 5 at the bottom of the vehicle body 3 by the fastening members 42.

As shown in fig. 3, the connecting boss 41 is provided with a connecting through hole 6, and the fastening member 42 is a threaded connecting member.

As shown in fig. 4, the insulation means 13 includes a first insulation portion 7 provided on the surface of the connection boss 41 and a second insulation portion 8 provided on the inner surface of the connection through-hole 6.

According to an embodiment of the present invention, the fastening member 42 is embodied as a bolt 9 and a nut 10, and the bolt 9 is connected with the nut 10 through the connecting through hole 6 and the lifting lug 5.

Referring to fig. 4, the first insulating portion 7 is an insulating rubber pad, and according to an embodiment of the present invention, a plurality of insulating rubber pads are disposed between the bolt 9, the connecting boss 41, the lifting lug 5 and the nut 10, and the area of the insulating rubber pads is larger than the area of the cross section of the head of the bolt 9, so that a path for transmitting a disturbance signal from the vehicle body 3 to the BTM antenna can be cut off, and thus BTM faults can be reduced.

Further, the second insulating part 8 is an insulating seal, as shown in fig. 4, a layer of insulating seal is provided on the inner wall of the connecting through hole 6, separating the bolt 9 and the connecting through hole 6; similarly, according to fig. 5, an insulation seal (indicated by 8 in the figure) is also provided on the inner wall of the through hole of the lifting lug 5, so as to prevent the disturbance signal from being conducted into the BTM antenna through the bolt.

In particular, in a preferred embodiment of the present invention, the insulating rubber pad and the insulating seal are preferably made of teflon, and have excellent properties of high temperature resistance, wear resistance and insulation, and the thickness of the insulating rubber pad ranges from 2mm to 5mm, and the thickness of the insulating rubber pad is usually 3mm, and the thickness of the insulating seal is 2 mm.

As shown in fig. 1 and 3, the body 3 is a rectangular box body, the connecting bosses 41 are four, are respectively located at the positions of four top corners of the top of the rectangular box body, and are provided with the connecting devices 13 at the four corners, so that the BTM antenna shell 1 is more tightly connected with the vehicle body 3, the connecting positions are prevented from shaking, and the condition of the insulating devices 13 is prevented from being damaged.

Further, the outer surfaces of the bolt 9 and the nut 10 are coated with insulating materials, and the insulating materials are insulating paint or insulating glue, so that the BTM antenna shell 1 and the vehicle body 3 are further ensured to be in insulating connection.

Further, the material of the body 3 and the fastening member 42 is metal or alloy, and preferably, the material of the body 3 is aluminum, which has a light weight and reduces the weight of the whole BTM antenna housing 1.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A BTM antenna housing with prevent automobile body conduction electromagnetic interference function which characterized in that includes: the antenna comprises a body (11), a containing cavity (12) and an insulating device (13), wherein the body (11) is a closed shell, the containing cavity (12) used for containing a BTM antenna is constructed in the body (11), the body (11) is provided with a connecting device (4) used for connecting a vehicle body (3), and the insulating device (13) is arranged between the connecting device (4) and the vehicle body (3).

2. A BTM antenna housing according to claim 1, wherein the connection means (4) is provided at the edge of the body (11);

the connecting device (4) comprises a plurality of connecting bosses (41) and fasteners (42) which are in one-to-one correspondence with the connecting bosses (41), and the connecting bosses (41) are fixed with lifting lugs (5) positioned at the bottom of the vehicle body (3) through the fasteners (42).

3. A BTM antenna housing according to claim 2, wherein the connection boss (41) has a connection through hole (6) formed therein, and the fastening member (42) is a threaded connection member.

4. A BTM antenna housing according to claim 3, wherein the insulation means (13) comprises a first insulation portion (7) provided on the surface of the connection boss (41) and a second insulation portion (8) provided on the inner surface of the connection through-hole (6).

5. A BTM antenna casing according to claim 4, characterized in that the fastener (42) is a bolt (9) and a nut (10), the bolt (9) passing through the attachment through hole (6) and the lifting lug (5) to attach to the nut (10).

6. A BTM antenna casing according to claim 5, characterized in that the first insulating part (7) is an insulating gel pad, which is arranged between the bolt (9), the connection boss (41), the lug (5) and the nut (10).

7. A BTM antenna casing according to claim 4, 5 or 6, characterized in that the second insulation (8) is an insulation seal.

8. A BTM antenna casing according to claim 3, characterized in that the body (11) is a cuboid box, and the number of the connecting bosses (41) is four, and the four connecting bosses are respectively located at four top corners of the top of the cuboid box.

9. A BTM antenna casing according to claim 5, characterized in that the outer surface of the bolt (9) and the nut (10) is coated with an insulating material.

10. A BTM antenna housing according to claim 2, wherein the body (11) and the fastener (42) are made of metal.