CN2044836U - Improved multifunction automatic cradle for bady - Google Patents

Abstract

The utility model belongs to an improved multifunctional automatic shaking table for babies, which is driven by electromagnetism. A circuit scheme which is driven by the electromagnetism is mainly improved essentially. The utility model is characterized in that the lagging detection inducted by the magneto-electric induction when a bed body is swung to the midpoint position is utilized to trigger one-way controllable silicon, an electromagnet which is fixed to a center line of a bottom board of a bedstead works in an intermittent way to drive the bed body, and the bed body can obtain dynamic force in an intermittent way in the process of swinging for the bed body to achieve the continuous swing. The utility model has the characteristics of simple circuit, low cost, low electricity consumption, etc. The utility model adopts AC 220V mains supply as the working power supply, and the power supply is convenient and economic to use by users. Besides, the utility model additionally has the functions of urine wet alarm, milk wet alarm and music hypnosis.

Description

Improved multifunction automatic cradle for bady

The utility model belongs to the automatic cradle that a kind of improved multifunction electromagnetic drives, and the circuit arrangement in Electromagnetic Drive has essential improvement especially, thereby circuit arrangement is simplified, performance improvement, and cost descends.Because employing alternating current 220V civil power is a working power, it is more economical that the user is used simultaneously.

Existing comparatively near in the product of the present utility model, the Electromagnetic Drive scheme is that battery pack is a working power, adopt an electro coupled oscillator to promote a power switch component and drive the electromagnet that is fixed on the bedstead, the permanent magnet of directional magnetic field that produces and bed body bottom forms repulsion, promotes the swing of bed body.This scheme has following shortcoming: (1). and working power is battery pack (being generally six to eight joint large size batteries), and the user uses power supply cost height, is unfavorable for that the consumer accepts.As increasing the Dc low voltage power supply of step-down transformer, rectification, filtering, cost increases nearly 30 yuan.(2). owing to contain electronic circuit such as electro coupled oscillator in the scheme, component number is more, and functional reliability descends, and cost is higher, and installation and debugging work load in producing are bigger than the utility model.

The purpose of this utility model will provide a kind of more simple, economic, reliable multi-functional automatic cradle, and the circuit arrangement of simplification and frame for movement make the easier production of producer, and adopting alternating current 220V power supply and lower cost easier be consumer and producer's acceptance.

Below in conjunction with accompanying drawing the utility model is described:

Fig. 1 is a basic structure oblique view of the present utility model, and whole metal frame for movement can be divided into a body and bedstead two parts.The bed body by frame ［ 1 ］ and three Qian shape sill strips ［ 2 ］, ［ 3 ］, ［ 4 ］ and two hang bar ［ 5 ］, ［ 6 ］ are formed.Bedstead is made up of left and right side frame ［ 7 ］, ［ 8 ］ and two root bottom part connecting legs ［ 9 ］, ［ 10 ］ and bedstead base plate ［ 11 ］.The bed body is gone up and can be swung by hook ［ 12 ］, ［ 13 ］ of hanging bar ［ 5 ］, ［ 6 ］ and being hung in left and right sides bedstead ［ 7 ］, ［ 8 ］ upper center.Importantly in the below, middle part of bed body sill strip ［ 2 ］ and ［ 3 ］ permanent magnet ［ 14 ］ and ［ 15 ］ are installed respectively, its magnetic pole is an above-below direction.On bedstead base plate ［ 11 ］, corresponding to the below of permanent magnet ［ 14 ］, ［ 15 ］ electromagnet ［ 16 ］ and magnetic test coil ［ 17 ］ are installed respectively, the magnetic pole of its electromagnet ［ 16 ］ is an above-below direction.There is a fixed gap below of the permanent magnet after the installation ［ 14 ］ and ［ 15 ］ with the top of electromagnet ［ 16 ］ and magnetic test coil ［ 17 ］ respectively, does not influence a body swing.［ 18 ］ be circuit control box, be contained in left bedstead ［ 7 ］ bottom.Total can be by amounting to and simply tear open, can shrink wrapping and be convenient to user's assembly unit (meaning not shown in the figures).

Fig. 2 is a body base plate and sideband part.Bed body base plate ［ 19 ］ is a fiberboard or five-layer plywood, and sideband ［ 20 ］ is 16 woven belts, and an end of every woven belt is equipped with one pair of four unification snap-fastener with bed body base plate ［ 19 ］ rivet clasp, the other end.During installation,, the other end of 16 woven belts is wrapped among Fig. 1 a bed body frame ［ 1 ］ fasten and get final product as long as bed body base plate ［ 19 ］ is put on bed body Qian shape sill strip ［ 2 ］, ［ 3 ］, ［ 4 ］ of Fig. 1.

Fig. 3 is the circuit diagram of automatic shaking table, wherein removes electromagnet ［ 16 ］ and magnetic test coil ［ 17 ］ and be to be contained among Fig. 1 on the bedstead base plate ［ 11 ］, and all the other elements all are contained in the control box among Fig. 1 ［ 18 ］.

Fig. 4 is that permanent magnet ［ 15 ］ is from two directions process magnetic test coils ［ 17 ］ top, at the inductive impulse waveform of magnetic test coil ［ 17 ］ two ends generation when reflecting the swing of bed body.Wherein waveform polarity is to be reference point with magnetic test coil among Fig. 3 ［ 17 ］ left end, and promptly to leave magnetic test coil moment be positive pulse to permanent magnet, and entering magnetic test coil moment is negative pulse.(annotate: opposite as pulse polarity, two end connectors of last lower magnetic pole that interchangeable permanent magnet ［ 15 ］ is installed or transposing magnetic test coil ［ 17 ］.)

When Fig. 5 is the swing of reflection bed body, permanent magnet ［ 14 ］ is from two directions process electromagnet ［ 16 ］ top, when leaving center (being electromagnet ［ 16 ］ mid point), permanent magnet ［ 14 ］ is subjected to the repulsion situation of electromagnet ［ 16 ］, wherein F represents suffered repulsion, and F1 and F2 are two component that F decomposes.(annotate: when the power that is subjected to electromagnet ［ 16 ］ as permanent magnet ［ 14 ］ is suction, the last lower magnetic pole that interchangeable permanent magnet ［ 14 ］ is installed or change two end connectors of electromagnet ［ 16 ］.)

With reference to Fig. 1, Fig. 3, Fig. 4 and Fig. 5, shaking table operation principle and process are as follows:

Earlier attaching plug ［ 29 ］ is inserted the alternating current 220V civil power, turn timer ［ 28 ］ knob makes power connection, touch the movable bed body once with have gentle hands, because permanent magnet ［ 15 ］ is through magnetic test coil ［ 17 ］ top, produce an inductive impulse at magnetic test coil ［ 17 ］ two ends, see Fig. 4.To electric capacity ［ 23 ］ charging, polarity is the electric capacity upper end for just to the positive pulse of leaving magnetic test coil ［ 17 ］ mid point moment at permanent magnet ［ 15 ］ through diode ［ 22 ］, and the lower end is for bearing.When the voltage on the electric capacity is charged to the triggering level of one-way SCR ［ 21 ］, one-way SCR ［ 21 ］ conducting, the pulsating dc voltage after one-way SCR ［ 21 ］ rectification is added on the electromagnet ［ 16 ］, produces directed pulsating field.Because electromagnet ［ 16 ］ is contained in the bedstead bottom, this moment, its top was the permanent magnet ［ 14 ］ of bed body bottom, and because the polarity of the magnetic field that heads on of permanent magnet ［ 14 ］ and electromagnet ［ 16 ］ is identical, so being subjected to the repulsion F(of electromagnet ［ 16 ］, permanent magnet ［ 14 ］ sees Fig. 5), make a body under the effect of useful component F1, go to leaving the center pendulum.

Meanwhile, because the inductive impulse of magnetic test coil ［ 17 ］ disappears, electric capacity ［ 23 ］ both end voltage drops to one-way SCR ［ 21 ］ below the triggering level, and one-way SCR ［ 21 ］ turn-offs because of the alternating current zero passage thereupon, electromagnet ［ 16 ］ outage.

The bed body is after leaving the center, because the gravity of bed body will be put back in the other direction.When through the center, because permanent magnet ［ 15 ］ passes through magnetic test coil ［ 17 ］ top again, as previously mentioned, when permanent magnet ［ 15 ］ leaves magnetic test coil ［ 17 ］ mid point moment, go up the positive pulse that produces at magnetic test coil ［ 17 ］ and will make one-way SCR ［ 21 ］ conducting, electromagnet ［ 16 ］ energising, the pulsation directional magnetic field of generation acts on permanent magnet ［ 14 ］, promotes the bed body and leaves the center in the opposite direction.When the bed body is put certain position, because the gravity of bed body makes a body put back again, so circulation, bed body interrupted repulsion of acquisition electromagnet ［ 16 ］ in swing like this, thus a body is swung back and forth continuously along the center.After timer ［ 28 ］ arrives preset time or drives timer ［ 28 ］ switch with ment, dump, the swing of bed body can not get the driving force of electromagnet ［ 16 ］, just stops swinging gradually.If timer ［ 28 ］ desires to stop a body swing when connecting, also available hand is held up the bed body and is fixed on center position, because one-way SCR ［ 21 ］ triggerless level, circuit is not worked, and the bed body stops swinging.

Diode among Fig. 2 ［ 24 ］ is served as afterflow when electromagnet ［ 16 ］ cuts off the power supply, avoid electromagnet ［ 16 ］ when outage to produce too high self-induction back-emf and damage other element.Neon tube ［ 26 ］ polyphone current-limiting resistance ［ 25 ］ is connected on electromagnet ［ 16 ］ two ends, during the electromagnet energising, and the neon tube build-up of luminance; During the electromagnet outage, the neon tube breath goes out.Play the usefulness of display circuit duty.

Electromagnet ［ 16 ］ divides two groups of coil windings to form.When switch ［ 27 ］ when opening, ［ 16 ］ one groups of coils of electromagnet are connected, magnetic field a little less than, bed body amplitude of fluctuation is less; When switch ［ 27 ］ was connected, ［ 16 ］ two groups of coils of electromagnet were all connected, and magnetic field is stronger, and bed body amplitude of fluctuation is bigger.So shaking table can pass through strong, weak two kinds of amplitudes of oscillation of console switch ［ 27 ］ control bed body.

In addition, this shaking table is also auxiliary is furnished with that urine-wet alarm, milk are wetly reported to the police, the music hypnogenesis function, and circuit diagram is seen Fig. 6.Entire circuit all is contained in another plastic casing except that two-way plug ［ 37 ］ and probe ［ 38 ］, can hang over the arbitrary suitable position of shaking table.Doing one below in conjunction with Fig. 6 simply introduces:

Music-integrating block ［ 30 ］ (model temporary CIC2873AE, music is " a cuckoo waltz ") the 5th pin be power positive end, the 9th pin is a power supply negative terminal, and the 2nd pin and power positive end need connect an operating resistance ［ 33 ］ (about between the 1K to 33K), and the 3rd pin is music signal output.When needs urine-wet alarm or the wet warning of milk, to pop one's head in ［ 38 ］ be placed in diaper or mouthful limit milk cloth, power turn-on switch ［ 35 ］, two-way plug ［ 37 ］ is inserted two-way socket ［ 36 ］, because operating resistance ［ 33 ］ left end and power positive end disconnect, probe ［ 38 ］ resistance when not making moist is open circuit, and music-integrating block is not worked, and loudspeaker is noiseless.When the diaper at probe ［ 38 ］ place or milk cloth when making moist, because probe ［ 38 ］ resistance drops to below the 20K, make music-integrating block work, the music signal of the 3rd pin amplifies the rear drive loudspeaker through triode ［ 31 ］ and sends musical sound and report to the police.After this, dry as ［ 38 ］ taking-up of will popping one's head in, musical sound promptly stops.During as the needs music hypnogenesis, only need two-way plug ［ 37 ］ is transferred to, power turn-on switch ［ 35 ］ is because operating resistance ［ 33 ］ left end is received power positive end by the normally-closed contact of two-way socket ［ 36 ］, music-integrating block ［ 30 ］ work, loudspeaker just sends the hypnosis of continuant music.As not its work, disconnecting power switch ［ 35 ］ gets final product.

Claims (3)

1, a kind ofly by magnetoelectric induction the bed body is swung to the center and lag behind to detect, and then control produces the automatic cradle that magnetic field drives, it is characterized in that utilizing the permanent magnet [15] that is fixed on the center line of bed body bottom reciprocally swinging with the bed body, when passing through and leaving magnetic test coil [a 17] top that is fixed on the bedstead base plate center line, produce induced positive pulse, its pulse-triggered one-way SCR [21], make the electromagnet [16] that is fixed on the bedstead base plate center line swing to the moment energising of leaving midline position at the bed body, the moment that electromagnet [16] produces, directed pulsating field produced repulsion to another permanent magnet [14] that is fixed on the body bottom center line, made that a body is interrupted in swing to be obtained power and reach continuous swing.

2, the directed pulsating field that produces by the described electromagnet of claim 1 ［ 16 ］, the operating voltage that it is characterized in that electromagnet ［ 16 ］ is the pulsating dc voltage of alternating current 220V civil power after the one-way SCR halfwave rectifier.

3, by the described electromagnet ［ 16 ］ and magnetic test coil ［ 17 ］ that is fixed on the bedstead base plate center line of claim 1, should be when the centre distance that it is characterized in that two devices is installed greater than 10 centimetres, less than the bed body length, and permanent magnet ［ 14 ］ and permanent magnet ［ 15 ］ that two devices top is fixed on the center line bottom the bed body respectively are corresponding.

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