CN203306042U - Pulse choke transformer - Google Patents

Abstract

The utility model relates to a pulse choke transformer, comprising a traction coil, a signal coil, an antijamming coil, an iron core and a filter; the corresponding terminal and the non-corresponding end of the traction coil are respectively connected with a sending end and a receiving end in a traction circuit; the other non-corresponding end of the traction coil is electrically connected with one non-corresponding end of the traction coil in the next pulse choke transformer; the traction coil, the signal coil and the antijamming coil are respectively wound on the iron core; any two pins of all pins on the signal coil are respectively connected with a pulse sender and a pulse attenuator; and the filter is connected with the antijamming coil in series. The pulse choke transformer is capable of adjusting the size of output signals, reducing the influence of a 50Hz power frequency signal on the receiving end and improving the antijamming capacity on power frequency signals.

Description

A pulse choke transformer

technical field

The utility model relates to a railway signal device, in particular to a pulse choke transformer.

Background technique

The asymmetric pulse track circuit system in the station has many problems in solving poor track circuit shunts, etc. The pulse choke transformer used in the original asymmetric high-voltage pulse system does not match the electronic asymmetric high-voltage pulse track circuit, and the output signal in use There are few voltage adjustment gears, and the 50Hz power frequency signal has a greater impact on the receiving end, which is prone to poor resistance to power frequency signal interference.

Utility model content

The technical problem to be solved by the utility model is to provide a pulse choke transformer capable of adjusting the size of the output signal, reducing the influence of the 50Hz power frequency signal on the receiving end, and improving the ability of resisting power frequency signal interference.

The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a pulse choke transformer, including a traction coil, a signal coil, an anti-interference coil, an iron core and a filter;

The same-named end and a different-named end of the traction coil are respectively connected to the power transmitting end and the power-receiving end in the track circuit, and the other opposite-named end of the traction coil is connected to a different-named end of the traction coil in the next pulse choke transformer circuit. The name terminal is electrically connected, the traction coil, the signal coil and the anti-interference coil are respectively wound on the iron core, and any two pins of all the pins on the signal coil are respectively connected with the pulse signal transmitter and the pulse signal receiver , a filter is also connected in series on the anti-interference coil.

The beneficial effects of the utility model are: the utility model can adjust the size of the output signal, reduce the influence of the 50Hz power frequency signal on the receiving end, and improve the ability of resisting power frequency signal interference.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the filter includes a capacitor and an inductor, and the capacitor and the inductor are connected in series.

The turn ratio range of the traction coil to the signal coil is 1-9.

The turns ratio of the traction coil and the anti-interference coil ranges from 7 to 18.

Description of drawings

Fig. 1 is a circuit structure diagram of the utility model;

Fig. 2 is a structure diagram of the filter of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Traction coil, 1a, the same-named end of the traction coil, 1b, a different-named end of the traction coil, 1c, the other opposite-named end of the traction coil, 2, signal coils, 2a, 2b, 2c, 2d, 2e, for Multiple connection terminals of the signal coil, 3, anti-interference coil, 3a, 3b, 3c, multiple connection terminals of the anti-interference coil, 4, iron core, 5, filter.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figure 1, it is a circuit structure diagram of the utility model; Figure 2 is a filter structure diagram of the utility model.

Example 1

A pulse choke transformer, comprising a traction coil 1, a signal coil 2, an anti-interference coil 3, an iron core 4 and a filter 5;

The same-named end 1a and a different-named end 1b of the traction coil 1 are respectively connected to the power transmitting end and the power-receiving end in the track circuit, and the other different-named end 1c of the traction coil 1 is connected to the next pulse choke transformer circuit. One opposite end of the traction coil is electrically connected, the traction coil 1, the signal coil 2 and the anti-interference coil 3 are respectively wound on the iron core 4, and all the pins (2a, 2b, 2c, 2d, Any two pins in 2e) are respectively connected to the pulse signal transmitter and the pulse signal receiver, the anti-jamming coil 3 is also connected in series with a filter 5, and the three pins of the anti-jamming coil 3 (3a , 3b, 3c) the two pins 3a, 3b or 3a, 3c are electrically connected to the two pins of the filter respectively.

The filter 5 includes a capacitor and an inductor connected in series.

The turn ratio range of the traction coil 1 to the signal coil is 1-9.

The turns ratio of the traction coil 1 and the anti-interference coil 3 ranges from 7 to 18.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. a pulse impedance transformer, is characterized in that: comprise hauling-eye (1), signal coil (2), disturbance rejection coil (3), iron core (4) and filter (5);

The Same Name of Ends (1a) of described hauling-eye (1) and a different name end (1b) respectively with track circuit in feed end with receiving end, be connected, a different name end of the hauling-eye in another different name end (1c) of hauling-eye (1) and next pulse impedance transformer circuit is electrically connected to, described hauling-eye (1), signal coil (2) and disturbance rejection coil (3) are wound in respectively on iron core (4), any two pins in the upper all pins of described signal coil (2) are connected with the pulse attenuator with pulse generator respectively, on described disturbance rejection coil (3), also be connected with filter (5).

2. pulse impedance transformer according to claim 1, it is characterized in that: described filter (5) comprises electric capacity and inductance, and described electric capacity and inductance are connected in series.

3. according to the arbitrary described pulse impedance transformer of claim 1 to 2, it is characterized in that: described hauling-eye (1) is 1～9 with the rate of turn scope of described signal coil.

4. according to the arbitrary described pulse impedance transformer of claim 1 to 2, it is characterized in that: described hauling-eye (1) is 7～18 with the rate of turn scope of disturbance rejection coil (3).

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