CN218414401U - Contactless switch and movable contact group for point switch - Google Patents

Abstract

The utility model provides a contactless shutter and movable contact group for a point switch, which comprises a shell and a vertically upward binding post arranged at the rear end of the shell, wherein the front end of the shell is provided with at least two tooth openings extending from front to back for driving the movable contact post into or out of the shell, and a sensor module is respectively arranged in the left side wall and the right side wall of the tooth opening; a control panel module arranged between the binding post and the tooth mouth is arranged in the shell; the wiring terminal and the sensor module are respectively electrically connected with the control panel module; the movable contact point column is driven into or pulled out of the tooth mouth, and is matched with the sensor module to realize the transmission of the switching action of the switching signal to the control panel module. The traditional contact mode that the movable contact post and the static contact piece are in mechanical contact and have certain pressure is thoroughly abandoned, the electromagnetic or photoelectric coupling mode is used instead, the switching and transmission of the switch signals of the action of the induction tooth mouth on the static contact seat when the movable contact post is driven into or pulled out of the static contact seat are realized, the structure is simplified, the non-contact function is realized, no abrasion is caused, the service life is long, and the work reliability is high.

Description

Contactless switch and movable contact group for point switch

Technical Field

The utility model belongs to the technical field of the railway signal, specifically relate to a switch is with shutter including moving, quiet contact group, especially a switch is with manifold quiet contact group and moving contact group.

Background

The point switch is an important signal basic device for reliably switching the position of the turnout, changing the opening direction of the turnout, locking a switch point rail and reflecting the position of the turnout, and can well ensure the driving safety, improve the operating efficiency and improve the labor intensity of driving personnel.

The device for connecting the identification signal in the point switch mainly has a movable contact group and a static contact group, a movable contact ring or a movable contact column on the movable contact group has multiple frequencies, and a high impact can cause great mechanical impact to a contact sheet when being driven into a left static contact sheet and a right static contact sheet on the static contact group, in the long-time use process, the elasticity of the static contact sheet can be reduced, the impact resistance can be reduced, even the breakage can cause the instability of the signal identification to cause major safety accidents, therefore, the mechanical elasticity and the impact resistance of the static contact sheet are required to be enhanced, the static contact sheet is generally made by selecting a material with better performance, or mechanical structures such as a reinforcing sheet are additionally arranged outside the static contact sheet, the form of taking the reinforcing sheet can cause more parts, and the design link and the maintenance link are obviously increased.

The chinese utility model patent of patent number 201720113728.4 discloses an accurate positioner suitable for quiet contact combination switch, it removes the torsional spring among the prior art or the pressure spring that the chinese utility model patent of patent number 201220215425.0 recorded, change into the setting of balanced pressure excellent power afterbody in the spacing recess 1 that the chinese utility model patent of patent number 201220215425.0, 201420312261.2 recorded, the inside holding power to quiet contact piece 2 is realized to reinforcing quiet contact piece receiving the clamping-force of the in-process that the movable contact ring was squeezed into or was extracted, ensure quiet contact piece and the stable contact of movable contact ring or movable contact post.

However, this structure has an obvious defect, that is, only one pressure spring or the pressure spring coated in rubber is used to apply elastic support from the outside of the static contact piece, the end surface area is limited, and the pressure spring is only arranged at the upper end or the lower end of the static contact piece surface, so that the static contact piece is stressed obliquely and unevenly, the verticality of the static contact piece surface cannot be guaranteed, the static contact piece surface is inclined when stressed, the stressed side is prone to excessive extrusion and deformation, the abrasion is increased, the local abrasion of the movable contact ring or the movable contact column is further increased, and the service life is shortened. And because of the service environment is abominable, the reliability of single elastic limiting device is relatively low.

As described above, although the main static contact bases of several specific structures at present have merits, the whole design concept still continues to use the traditional mechanical structure design to realize the on-off of the circuit, and the inherent faults existing in the mechanical structure, such as fatigue of mechanical elements, arc discharge generated in the high-frequency on-off process of the movable contact column and the static contact piece, creepage phenomenon existing in the terminal bolt, etc., which are common and can not be avoided by the main current mechanical structure at present, can not be avoided fundamentally.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stable, the reliable railway electric goat of signal transmission is with coupled type stationary contact seat and movable contact group of contact.

In order to achieve the above purpose, the utility model provides a technical scheme is:

a contactless switch for a switch machine, comprising a housing and a vertically upward binding post disposed at the rear end of the housing, is characterized in that: the front end of the shell is provided with at least two toothed openings which are used for driving the contact post into or out of the shell and extend forwards and backwards, and a sensor module is arranged in each of the left side wall and the right side wall of each toothed opening;

a control panel module arranged between the binding post and the tooth mouth is arranged in the shell;

the binding post and the sensor module are respectively electrically connected with the control panel module; and the movable contact point column is driven into or pulled out of the tooth mouth and is matched with the sensor module to realize the on-off action of the switch signal and transmit the switch signal to the control panel module.

The sensor module is a magnetic induction switch, and the left side wall and the right side wall of the movable contact column are respectively provided with an induction magnet.

The sensor module is composed of a light-emitting element and a photosensitive element which are respectively arranged on two opposite side walls of the tooth opening, and the movable contact point column is used for blocking or avoiding a light path so as to complete the switching action of a switching signal.

A movable contact group comprises a movable contact seat and a movable contact column arranged at the top of the movable contact seat, and is characterized in that the left side wall and the right side wall of the movable contact column are respectively provided with an induction magnet or a magnetic ring.

The utility model has the advantages that:

1. the contact mode that traditional movable contact post and static joint piece rely on machinery to compress tightly is thoroughly abandoned, changes into electromagnetism or photoelectric coupling formula, realizes the switching and the transmission of the switching signal of the action of the response tooth mouth on the movable contact post is squeezed into or is pulled out the static joint seat, has thoroughly avoided a great deal of shortcoming that traditional mechanical structure exists.

2. The structure of the static contact seat is simplified, the manufacture and the maintenance are more convenient, and the operation and maintenance cost is reduced.

3. The working reliability is improved, and no creepage or arc discharge phenomenon exists.

4. The function of the non-contact railway switch is realized, and the high service life and the high reliability are realized.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a perspective view of a contactless switch for a switch machine.

Fig. 2 is a schematic view of a contactless switch for the switch machine shown in fig. 1.

FIG. 3 is a schematic view of the structure of the movable contact set.

Fig. 4 is a schematic view of the position of the movable contact base when it is driven into the tooth opening of the contactless switch for the switch machine.

Fig. 5 is a schematic view of a switch machine in which magnetic induction sensor modules are provided in two side walls of a switch machine contactless shutter facing each other.

In the figure: 1. a housing; 2. a binding post; 3. a movable contact post; 4. a tooth mouth; 5. a sensor module; 6. a control panel module; 7. an induction magnet; 8. a movable contact point seat; 9. a light emitting element; 10. a photosensitive element; 11. a magnetic induction sensor module.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purposes, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and embodiments.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "alignment", "overlap", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment provides a contactless switch for a point switch shown in fig. 1 and 2, which comprises a casing 1 shown in fig. 1 and a vertically upward binding post 2 arranged at the rear end of the casing 1, and the obvious structural design different from the traditional stationary contact base comprises that the front end of the casing 1 is provided with at least two fore-and-aft extending tooth openings 4 for driving or pulling out the contact post 3 shown in fig. 3, and a sensor module 5 is respectively arranged in the left side wall and the right side wall of the tooth opening 4; a control panel module 6 arranged between the binding post 2 and the tooth mouth 4 is arranged in the shell 1, and the binding post 2 and the sensor module 5 are respectively and electrically connected with the control panel module 6; the movable contact column 3 is driven into or pulled out of the tooth mouth 4, and is matched with the sensor module 5 to transmit a switching signal to the control panel module 6.

The present invention provides a coupling scheme without mechanical contact, which mainly includes a magnetic induction type and a photoelectric induction type, where the magnetic induction type contact technology is different from the conventional contact technology, and mainly embodies that a friction collision contact between a moving contact and a stationary contact is avoided in an action process of the contact, a specific magnet is fixed on an induction contact of the moving contact, when the moving contact is driven into an induction area of the stationary contact, a magnetic field change in the area is caused, a magnetic induction sensor module (a magnetic induction sensor is a device that converts a magnetic signal into an electrical signal) embedded inside the stationary contact senses the change of the magnetic field and converts the change of the magnetic field into an electrical signal, which is transmitted to a control board module, and the control board module processes and logically determines the transmitted electrical signal, and makes the electrical signal reliably drive a built-in relay or a transistor, and the on and off of the built-in relay or the transistor are performed, thereby implementing the on or off function of a corresponding terminal circuit.

And the photoelectric sensing contact is equipped with light emitting component and photosensitive element (photosensitive element is a device that converts light signal into the signal of telecommunication) respectively on the dead joint response groove two just right lateral walls of aforesaid tooth mouth 4, when moving contact post 3 and squeeze into the response region of tooth mouth 4, make light take place to block, when photosensitive element sensed light and changed, can convert light signal into the signal of telecommunication and transmit control panel module, control module handles and logical judgement to the signal of telecommunication of transmission, and make its reliable drive built-in relay or transistor, switch-on and disconnection through built-in relay or transistor, thereby realize the function of the switch-on or the disconnection of the circuit of the terminal that corresponds.

The two techniques, i.e., electromagnetic induction, are well known to those skilled in the art, and will not be described herein, but only the specific suitable electronic components and circuits are selected by the industry standard when manufacturing the stationary contact base provided in the present embodiment.

Based on the above description, when the sensor module 5 provided in this embodiment is a magnetic induction switch, the left and right sides of the movable contact column 3 are provided with the induction magnets. When the sensor module 5 is composed of a light emitting element and a light sensing element respectively arranged on two opposite side walls of the tooth opening 4, the movable contact column 3 is used for blocking or avoiding the light path, thereby completing the switching action of the switching signal.

To achieve the above object, the movable contact set of the present embodiment includes a movable contact base 8 and a movable contact column 3 disposed on the top of the movable contact base 8, wherein an induction magnet 7 is disposed on each of the left and right sidewalls of the movable contact column 3.

The movable and static contact group provided by the above embodiments completely abandons the structure and mode of mechanical clamping of the traditional movable contact column and the static contact piece, thoroughly avoids the phenomena of instability, creepage or electric arc caused by mechanical structure, simplifies the structure, improves the reliability of operation, and greatly reduces the manufacturing and operation and maintenance costs.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (4)

1. A contactless switch for a switch machine, comprising a case (1) and a vertically upward terminal (2) provided at the rear end of the case (1), characterized in that: the front end of the shell (1) is provided with at least two tooth openings (4) which are used for driving the contact columns (3) to be driven in or pulled out and extend forwards and backwards, and the left side wall and the right side wall of each tooth opening (4) are respectively provided with a sensor module (5);

a control panel module (6) arranged between the binding post (2) and the tooth mouth (4) is arranged in the shell (1);

the wiring terminal (2) and the sensor module (5) are respectively electrically connected with the control panel module (6);

the movable contact column (3) is driven into or pulled out of the tooth mouth (4) and is matched with the sensor module (5) to transmit a switch signal to the control panel module (6).

2. The contactless switch for a switch according to claim 1, wherein: the sensor module (5) is a magnetic induction switch, and the left and right side walls of the movable contact column (3) are respectively provided with an induction magnet (7).

3. A contactless switch for a switch machine according to claim 1, characterized in that: the sensor module (5) is composed of a light-emitting element (9) and a photosensitive element (10) which are respectively arranged on two opposite side walls of the tooth opening (4), and the movable contact column (3) is used for blocking or avoiding a light path, so that the switching action of a switching signal is completed.

4. A movable contact group comprises a movable contact seat (8) and a movable contact column (3) arranged at the top of the movable contact seat (8), and is characterized in that the left side wall and the right side wall of the movable contact column (3) are respectively provided with an induction magnet (7).

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