CN203932343U - Resonance matching unit in naked frequency shift modulated track circuit - Google Patents

Abstract

The utility model provides the resonance matching unit in a kind of naked frequency shift modulated track circuit, and problem to be solved is: decreasing insulating under high temperature hygrothermal environment.Main points of the present utility model are: binding post is ceramic binding post; Pottery binding post is, the latter half of two binding posts is imbedded in cuboid ceramics seat, on the ceramics seat of the outer end of each binding post, respectively has a bolt penetration hole, and bolt is fixed on ceramics seat on unit box base plate through bolt penetration hole; The mode of described printed board, binding post and house cable electrical connection is, between each binding post and printed board, is connected with wire, and the link of house cable is connected on binding post.Realize being connected of house cable and printed board.Effect of the present utility model is: insulation property can meet the user's requirement that is greater than 1M Ω.

Description

Resonance matching unit in naked frequency shift modulated track circuit

Technical field

The utility model relates to naked frequency shift modulated track circuit in railway signal system, is resonance matching unit in naked frequency shift modulated track circuit specifically.

Background technology

Resonance matching unit in railway signal system naked frequency shift modulated track circuit, comprises printed board and binding post, and binding post, as the electric connector between house cable and printed board, completes the connection function between input, output.The binding post that resonance matching unit uses at present adopts spring binding post, spring binding post with being electrically connected of house cable is, spring binding post provides a pair of spring crimp type terminal, when connection, one end of house cable is inserted in the jack of this spring crimp type terminal, allow this terminal contained spring compress house cable with specific purpose tool again, just can realize the solid and reliable contact of electrical connection.On spring binding post, also have four spring crimp type terminals, for the wire that connects other function as rail wire etc.Spring binding post with being electrically connected of printed board is, spring binding post is welded in printed board, and printed board is arranged in unit box.Above-mentioned six spring crimp type terminals are arranged in a row, and adjacent spring crimp type terminal spacing is 7.5mm.Resonance matching unit is under outdoor hot and humid environment, steam can be gathered in gap between spring connecting terminal and printed board, cause decreasing insulating between terminal and terminal, show as between cable core and heart yearn, decreasing insulating between rail and rail, between cable and rail.

Summary of the invention

For solving the problems of the technologies described above, the purpose of this utility model is to provide the resonance matching unit in a kind of naked frequency shift modulated track circuit, it uses ceramic binding post, replaces spring binding post, to solve the problem of decreasing insulating under high temperature hygrothermal environment.

The purpose of this utility model is achieved in that it comprises unit box, printed board and binding post, house cable, printed board and binding post electrical connection, be that electrical connection (electric principle) between house cable, printed board and binding post is constant, it is characterized in that: said binding post is ceramic binding post; Pottery binding post is, the latter half of two binding posts is imbedded in cuboid ceramics seat, on the ceramics seat of the outer end of each binding post, respectively has a bolt penetration hole, and bolt is fixed on ceramics seat on unit box base plate through bolt penetration hole; The mode of described printed board, binding post and house cable electrical connection is, between each binding post and printed board, is connected with wire, and the link of house cable is connected on binding post.Realize being connected of house cable and printed board.

Compared with existing equipment, the utility model effect is: because ceramic binding post only has two binding posts, distance between two binding posts obviously strengthens, and use wire to be connected between ceramic binding post and printed board, can not produce gap, even under high temperature hygrothermal environment, between binding post and printed board, can not gather steam, make between cable core and heart yearn, between rail and rail, between cable and rail, insulation property can obviously not decline, and all can meet the user's requirement that is greater than 1M Ω.

Brief description of the drawings

Further illustrate the utility model below in conjunction with accompanying drawing.

Fig. 1 is schematic diagram of the present utility model, opens the vertical view after unit lid.

Fig. 2 is the A-A profile of Fig. 1.

Embodiment

It comprises unit box 1, printed board 2 and binding post, house cable 5, printed board and binding post electrical connection, and the electrical connection between house cable, printed board and binding post is constant, and said binding post is ceramic binding post 4.Pottery binding post is that the latter half of two binding posts 45 is imbedded 44 li of cuboid ceramics seats, between binding post and ceramics seat, uses epoxy resin encapsulated.On the ceramics seat of the outer end of each binding post, respectively have a bolt penetration hole 41, bolt is fixed on ceramics seat on unit box base plate through bolt penetration hole, and said binding post surface is threaded into screw rod, limited location nut 43 on screw rod.One end of wire 3 is welded in printed board, the other end of wire is with O ring joint 31, the link of house cable is also with O ring joint 51, two O ring joints are pressed on upper and lower cover binding post to stop nut, clamp nut 42 screws in screw rod, two O ring joints are fixed, realize being connected of house cable and printed board.

Spacing 26 mm of two binding posts, two bolt penetration hole spacing 76 mm, the long 96mm of ceramic terminal, wide 37mm, high 20mm.Binding post the latter half is sealed in ceramic body inside, stops steam and gathers and permeate, and increases as far as possible the spacing of two binding posts, thoroughly stops the approach that insulation reduces.

Claims (2)

1. the resonance matching unit in naked frequency shift modulated track circuit, it comprises unit box, printed board and binding post, house cable, printed board and binding post electrical connection, is characterized in that: said binding post is ceramic binding post; Pottery binding post is, the latter half of two binding posts is imbedded in cuboid ceramics seat, on the ceramics seat of the outer end of each binding post, respectively has a bolt penetration hole, and bolt is fixed on ceramics seat on unit box base plate through bolt penetration hole; The mode of described printed board, binding post and house cable electrical connection is, between each binding post and printed board, is connected with wire, and the link of house cable is connected on binding post.

2. according to the resonance matching unit in naked frequency shift modulated track circuit claimed in claim 1, it is characterized in that: said binding post surface is threaded into screw rod limited location nut on screw rod; One end of wire is welded in printed board, the other end of wire is with O ring joint, and the link of house cable, also with O ring joint, is pressed on upper and lower cover binding post two O ring joints to stop nut, clamp nut screws in screw rod, and two O ring joints are fixed.