CN205086948U - Closely connected detection device of circuit board and switch - Google Patents
Closely connected detection device of circuit board and switch Download PDFInfo
- Publication number
- CN205086948U CN205086948U CN201520760526.XU CN201520760526U CN205086948U CN 205086948 U CN205086948 U CN 205086948U CN 201520760526 U CN201520760526 U CN 201520760526U CN 205086948 U CN205086948 U CN 205086948U
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- microcontroller
- circuit board
- coil
- circuit card
- signal
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Abstract
The utility model discloses a closely connected detection device of circuit board and switch relates to electron device and track traffic technical field. Circuit board including claim 1, still be provided with inductive transducer, microcontroller on the circuit board, the embedment of circuit board is in encapsulating encapsulation box, inductive transducer is through the coil induction switch blade and the distance signal of stock rail of printing on the circuit board to give the signal transfer who obtains microcontroller, signal after microcontroller will handle sends the upper layer control unit to through wired communication module or wireless communication module. The utility model discloses integrate coil, inductive transducer, microcontroller on the circuit board that a 1 -2mm favors to the embedment in encapsulating encapsulation box, its compact structure, small, the integrated level is high, the reliability is high, can work under water, oil, dust, pollutant environment, is applicable to outdoor switch installation environment.
Description
Technical field
The utility model relates to electronics package and technical field of rail traffic, particularly relates to a kind of circuit card and switch closure detecting device.
Background technology
The switch closure detecting device used in China is at present mainly secret adhering sheet checking device and the China National Railway Signal & Comm. Corp. JM1 type secret adhering sheet checking device of Siemens production.Two product to be installed between first and second towing point bottom stock rail or to be connected to the standalone basis outside rail by long connecting rod, " switch " signal of " leading to " and " obstructed " can only be provided, gap change when can not reflect closely connected to closely connected whether the putting in place of tongue and stock rail.Patent 201410137025.6, provides a kind of closely connected deformation apparatus of point tongue gathered based on electromagnetic eddy excitation in, has noncontact, is not subject to the advantages such as the impact of the media such as greasy dirt.But this device adopts the mode of several separate winding, and environmental resistance is poor, fragile, complex structure, install limited and cost is high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of circuit card and switch closure detecting device, coil, inductance sensor, microcontroller are integrated on the thick circuit card of one piece of 1-2mm, compact conformation, life-span is long, cost is low, and adopts encapsulating packing forms to encapsulate, and its environmental resistance is good, measured the change procedure of the spacing of stock rail and tongue by inductance sensor, judge the state of switch closure.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of circuit card, circuit card is printed with coil.
Preferably, described coil is snail type wound coil.
A kind of switch closure detecting device, detecting device comprises above-mentioned circuit card, described circuit card is also provided with inductance sensor, microcontroller, described circuit card is potted in encapsulating encapsulation box, described inductance sensor is by printing coil-induced tongue on circuit boards and the distance signal of stock rail, and sending the signal of acquisition to described microcontroller, described microcontroller sends the signal after process to top level control unit by wire communication module or wireless communication module.
Preferably, described encapsulating encapsulation box is fixedly mounted on inside two stock rails respectively, and control circuit board in encapsulating encapsulation box is vertical with the rail level of stock rail arranges.
Preferably, the thickness of described circuit card is 1-2mm.
The beneficial effect that produces of technique scheme is adopted to be: the utility model is installed on the inner side of two stock rails, that adopt non-touch inductance sensor to measure tongue with spacing that is stock rail, determine whether the two is closely connected.The sensor of both sides measures the change procedure of the spacing of stock rail and tongue respectively, and only have side stock rail and tongue spacing to be greater than the spacing distance of setting, side is less than the closely connected distance of setting, just can judge that track switch is in close-fitting state.Coil, inductance sensor, microcontroller are arranged on the thick circuit card of one piece of 1-2mm by this closely connected device, its coil is printed on circuit card, its compact conformation, volume is little, integrated level is high, reliability is high, can work under water, oil, dust, pollutants environment, be applicable to outdoor mounting turnout environment; Adopt its environmental resistance of encapsulating packing forms good.
Accompanying drawing explanation
Fig. 1 is the utility model integral structure schematic diagram;
Fig. 2 is the utility model schematic circuit diagram;
Fig. 3 is the circuit diagram of the utility model embodiment;
Fig. 4 is the structural representation of the utility model embodiment coil;
Wherein, 1 stock rail, 2 tongues, 3 encapsulating encapsulation boxes.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, the utility model is a kind of circuit card, and control circuit board is printed with coil; Described coil is snail type wound coil; Coil on described circuit card can also be square Encircling coils, or other around row in earlier stage, described coil can be according to the actual requirements, as, need the resolution of the distance of detection, target size, target material, detection, can coil parameter be determined: the shape (circular, square, hexagon, octagon) of coil, the number of turn, live width, copper sheet thickness, the coil number of plies, distance between centers of tracks etc., derive corresponding PCB design; Detecting device comprises above-mentioned circuit card, described circuit card is also provided with inductance sensor, microcontroller, described circuit card is potted in encapsulating encapsulation box 3, described inductance sensor is by printing coil-induced tongue 2 on circuit boards and the distance signal of stock rail 1, and sending the signal of acquisition to described microcontroller, described microcontroller sends the signal after process to top level control unit by wire communication module or wireless communication module; Described encapsulating encapsulation box 3 is fixedly mounted on inside two stock rails 1 respectively, and control circuit board in encapsulating encapsulation box 3 is vertical with the rail level of stock rail arranges; The thickness of described circuit card is 1-2mm; Encapsulating encapsulation box 3 realizes waterproof and increases the object of mechanical strength, and described inductance sensor is LC1612 binary channel inductance sensor, and microcontroller is the Dispic33FJ64GP710A microcontroller with CAN interface; Described LC1612 binary channel inductance sensor by the distance signal of the coil-induced tongue 2 that is connected respectively with IN0A, IN0B and IN1A, IN1B and stock rail 1, and passes through I
2c interface is sent to Dispic33FJ64GP710A microcontroller and processes; Dispic33FJ64GP710A microcontroller by I/O interface to Dispic33FJ64GP710A microcontroller carry out shutoff control, and by process after signal be sent to top level control unit by CAN interface.
A method of inspection for switch closure detecting device, this method of inspection comprises the following steps:
1) encapsulating is encapsulated the inner side that box 3 is arranged on two stock rails 1 respectively, inner circuit card and suitable being communicated with of top level control unit;
2) measured the change procedure of the spacing of stock rail 1 and tongue 2 by the inductance sensor in encapsulating encapsulation box 3 and the coil printed on circuit boards respectively, and be sent to microcontroller;
3) microcontroller carries out the change procedure processing stock rail 1 and tongue 2 spacing collected, and the signal after process is sent to the state that top level control unit carries out judging switch closure.
Wherein, described step 2) in stock rail 1 and the change procedure of the spacing of tongue 2 be the separation process of side stock rail and tongue and opposite side stock rail and tongue close to process.
The principle of work of the utility model foundation is: inductance sensor produces AC magnetic field by the coil that excitation is external, when conductive body (as metal) is close to coil, AC magnetic field can form eddy current at conductive surface, and eddy current and conductor and coil distance, conductor size are closely related.Eddy current also will produce magnetic field, this magnetic field is contrary with the AC magnetic field that coil produces and to the generation effect of original magnetic field, the similar voltage transformer of this action principle, and coil is as elementary, conductor is as secondary, and primary and secondary inductive coupling depends on conductor and coil distance, conductor size.Noncontact inductance sensor keeps uniform amplitude vibration by measuring the inner LC oscillator of excitation, determines the equivalent parallel impedance because the existence of conductor produces by the energy dissipation of oscillator.The spacing of this impedance and object and coil has direct corresponding relation.
As Fig. 1 right part, now stock rail and tongue spacing are in released state, and the two spacing is greater than 1cm usually, and we are referred to as the two and are in the state of leaving.Inductance sensor is noncontact closely high precision test, and detecting distance is generally several millimeters, and when the two is in and leaves state, inductance sensor can't detect tongue.When tongue presses close to stock rail, as shown in left side in Fig. 1, the two distance is in millimeter scope, be referred to as the two and be in close-fitting state, in the detection range of both close-fitting states spacing at inductance sensor, and when tongue and stock rail are progressively separated by close-fitting state, inductance sensor also can detect process separately.Equally also can detect and enter into tongue in inductance sensor detection range progressively near the process of stock rail.
As shown in Figure 3, inductance sensor adopts Texas Instrument (TexasInstruments) binary channel inductance sensor LC1612 binary channel inductance sensor, microcontroller (MCU) can be different according to the outside output interface type adopted, as adopted Wei Xin company (microchip) the company Dispic33FJ64GP710A microcontroller of CAN interface.This sensor connects two coils, and two objects (Target), respectively near coil, the distance of object and coil calculates by sensor, and passes through I
2c interface is connected with microcontroller (MCU), microcontroller turns off sensor signal input by I/O port (GPIO), the information of sensor passes processes by microcontroller, and by CAN interface, information is passed to top level control unit according to the speed set, cycle.
Sensor in switch closure detecting unit measures the change procedure of the spacing of stock rail and tongue respectively, only have side stock rail and tongue spacing from being less than closely connected spacing to being greater than the process leaving distance, and opposite side leaves distance to the process being less than closely connected spacing by what be greater than setting, just can judge that track switch is in close-fitting state.
Claims (5)
1. a circuit card, is characterized in that: circuit card is printed with coil.
2. a kind of circuit card according to claim 1, is characterized in that: described coil is snail type wound coil.
3. a switch closure detecting device, it is characterized in that: detecting device comprises the circuit card of claim 1 or claim 2, described circuit card is also provided with inductance sensor, microcontroller, described circuit card is potted in encapsulating encapsulation box (3), described inductance sensor is by printing coil-induced tongue (2) on circuit boards and the distance signal of stock rail (1), and sending the signal of acquisition to described microcontroller, described microcontroller sends the signal after process to top level control unit by wire communication module or wireless communication module.
4. a kind of switch closure detecting device according to claim 2, it is characterized in that: described encapsulating encapsulation box (3) is fixedly mounted on two stock rails (1) inner sides respectively, and control circuit board in encapsulating encapsulation box (3) is vertical with the rail level of stock rail arranges.
5. a kind of switch closure detecting device according to claim 3, is characterized in that: the thickness of described circuit card is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760526.XU CN205086948U (en) | 2015-09-29 | 2015-09-29 | Closely connected detection device of circuit board and switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760526.XU CN205086948U (en) | 2015-09-29 | 2015-09-29 | Closely connected detection device of circuit board and switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205086948U true CN205086948U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520760526.XU Expired - Fee Related CN205086948U (en) | 2015-09-29 | 2015-09-29 | Closely connected detection device of circuit board and switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205086948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172840A (en) * | 2015-09-29 | 2015-12-23 | 沧州师范学院 | Device and method for detecting close contact between circuit board and turnout |
-
2015
- 2015-09-29 CN CN201520760526.XU patent/CN205086948U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172840A (en) * | 2015-09-29 | 2015-12-23 | 沧州师范学院 | Device and method for detecting close contact between circuit board and turnout |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |