CN202206197U

CN202206197U - Wireless power supply and signal transmitter

Info

Publication number: CN202206197U
Application number: CN2011203146242U
Authority: CN
Inventors: 金祖徳; 金涛
Original assignee: HANGZHOU EVERLONG BIOTECHNICS CO Ltd
Current assignee: HANGZHOU EVERLONG BIOTECHNICS CO Ltd
Priority date: 2011-08-26
Filing date: 2011-08-26
Publication date: 2012-04-25
Anticipated expiration: 2021-08-26

Abstract

The utility model belongs to the technical field of non-contact power supply and signal transmission and particularly relates to a wireless power supply and signal transmitter. The wireless power supply and signal transmitter comprises a transmitting device and a receiving device and is characterized in that the transmitting device is formed by an overvoltage protection circuit, an intermediate-frequency pulse generator, a power conversion circuit and a primary coil iron core which are sequentially connected; the receiving device is formed in a mode that a secondary coil iron core is connected with a power reduction circuit; and the primary coil iron core and the secondary coil iron core are not connected, and a certain gap is reserved between the primary coil iron core and the secondary coil iron core. The wireless power supply and signal transmitter has the advantages that the wireless power supply and signal transmitter has a simple structure, is convenient to use, is stable to operate, has strong environmental adaptation and a long service life, and the like.

Description

No line power supply and signal transmission device

Technical field

The utility model belongs to contactlessly powered and the signal transmission technology field, particularly a kind of no line power supply and signal transmission device.

Background technology

In the prior art; Electric power transfer mainly adopts fixed electric wire transmission or the electric power transfer mode of contact is arranged; But in a lot of products, exist the situation that needs to transmit signal between two parts of mutual motion; The parts that rotatablely move like the relatively-stationary parts in bottom and top need transmit the situation of signal, for example: products such as illuminator, radar system.The said goods all exists not only needs supply of electric power; Need relative motion between the parts again; And the present settling mode that adopts is mainly realized from crossing the slip ring structure; The principle of slip ring structure is that a contact is arranged on the conductor of ring-type or other present situations of a conduction, in sliding process, can keep in touch, thereby reach the effect of electric energy transmitting; But the existing problem of this transmission structure is: the first, two object moves each other and produces friction, makes object damage very soon, and useful life is limited; Second: be easy to generate loose contact between the conductor of motion each other, thereby produce spark, produce the damage that big electric current quickens object; The the 3rd: so owing to be under a lot of situation of motion each other working down, so in adverse circumstances, corroded easily with the isolated state of air.Therefore, develop a kind of new equipment that can the non contact transmission signal, become contactlessly powered and one of signal transmission technology field urgent problem.

Summary of the invention

The purpose of the utility model is to provide a kind of simple in structure, easy to use, stable no line power supply and signal transmission device.

The purpose of the utility model is to adopt such technical solution to realize: it comprises emitter and receiving system; It is characterized in that said emitter is made up of the overvoltage crowbar that is connected successively, medium-frequency pulse generator, power converting circuit and primary coil iron core; Said receiving system secondary coil iron core and power supply also primary circuit be formed by connecting; Said primary coil iron core does not link to each other with the secondary coil iron core mutually, and certain clearance is arranged between the two.

Said overvoltage crowbar is by independently exchanging overvoltage crowbar and DC over-voltage protection circuit is formed.

The utility model adopts converter technique and electromagnetic conversion principle; Can the feeder ear power source conversion be become intermediate-freuqncy signal; Produce the magnetic field of corresponding frequencies then through the primary coil iron core; The secondary coil iron core is positioned at the magnetic field that the primary coil iron core produces, and the secondary coil iron core can convert the magnetic field that the primary coil iron core is produced to electric energy, and the electric energy that the secondary coil iron core converts to becomes to have power power-supply through power supply reduction circuit reduction; The utlity model has that contactless transfer of electrical energy, energy loss are low, the electric energy transmitting safety and stability, can adapt to work under any environment, advantages such as long service life.

Description of drawings

Fig. 1 is the circuit block diagram of the utility model

Fig. 2 is the circuit theory diagrams of the utility model.

Embodiment

Comprise emitter 1 and receiving system 6 with reference to accompanying drawing 1, Fig. 2 the utility model; Said emitter 1 is made up of the overvoltage crowbar that is connected successively 2, medium-frequency pulse generator 3, power converting circuit 4 and primary coil iron core 5; Said receiving system 6 secondary coil iron core 7 and power supply also primary circuit 8 be formed by connecting; Said primary coil iron core 5 does not link to each other with secondary coil iron core 7 mutually, and certain clearance is arranged between the two.

Said overvoltage crowbar 2 is formed with DC over-voltage protection circuit 10 by independently exchanging overvoltage crowbar 9.

Said interchange overvoltage crowbar 9 is made up of resistance R 1-R3, variable resistor RW, capacitor C 1 and C2, diode D1, D2, voltage stabilizing didoe DW1, triode Q1 and bidirectional trigger diode DS.

Said DC over-voltage protection circuit 10 is made up of protective tube F, voltage stabilizing didoe DW2-DW4, resistance R 4-R6, triode Q2 and FET FET1.

Said medium-frequency pulse generator 3 is buied by market, and its first link joins through resistance R 7 and power supply, and joins the 5th link ground connection of medium-frequency pulse generator 3 with the connected node of capacitor C 3, C4 simultaneously.

Said power converting circuit 4 is made up of resistance R 5-R7, FET FET2, FET FET3 and capacitor C 5, C6; One end of resistance R 5 and second link of medium-frequency pulse generator 3 join; The grid G 2 of the other end and FET FET2 is joined; One end of resistance R 6 and the 3rd link of medium-frequency pulse generator 3 join; The grid G 3 of the other end and FET FET3 is joined, and the source S 2 of FET FET2 and the source S 3 of FET FET3 are through resistance R 7 ground connection, and the drain electrode of the drain electrode of FET FET2 and FET FET3 is connected to the two ends of primary coil iron core 5; The connected node of the centre cap of primary coil iron core 5 and capacitor C 5, C6 one end joins, capacitor C 5, C6 other end ground connection.Power supply also primary circuit 8 adopts known bridge rectifier and capacitor filter to constitute.

When the utility model uses; Power supply produces corresponding electromagnetic field scope through overvoltage crowbar 2, medium-frequency pulse generator 3, power converting circuit 4 and primary coil iron core 5, and the power supply that produces corresponding frequencies under the magneticaction of secondary coil iron core 7 in magnetic field in magnetic field in the receiving system 6 is reduced into meritorious power supply output through the power supply reductor.

Claims

1. there are not line power supply and signal transmission device; Comprise emitter and receiving system; It is characterized in that said emitter is made up of the overvoltage crowbar that is connected successively, medium-frequency pulse generator, power converting circuit and primary coil iron core; Said receiving system secondary coil iron core and power supply also primary circuit be formed by connecting, said primary coil iron core does not link to each other with the secondary coil iron core mutually, and certain clearance is arranged between the two.

2. no line power supply according to claim 1 and signal transmission device is characterized in that said overvoltage crowbar is by independently exchanging overvoltage crowbar and DC over-voltage protection circuit is formed.

3. no line power supply according to claim 1 and signal transmission device; It is characterized in that said power converting circuit is made up of resistance R 5-R7, FET FET2, FET FET3 and capacitor C 5, C6; One end of resistance R 5 and second link of medium-frequency pulse generator 3 join; The grid G 2 of the other end and FET FET2 is joined, and an end of resistance R 6 and the 3rd link of medium-frequency pulse generator 3 join, and the grid G 3 of the other end and FET FET3 is joined; The source S 2 of FET FET2 and the source S 3 of FET FET3 are through resistance R 7 ground connection; The drain electrode of the drain electrode of FET FET2 and FET FET3 is connected to the two ends of primary coil iron core 5, and the connected node of the centre cap of primary coil iron core 5 and capacitor C 5, C6 one end joins, capacitor C 5, C6 other end ground connection.