CN2217824Y - Water-proof reflection-type infrared controller - Google Patents

Abstract

The utility model discloses a water proof reflection type infrared controller used for occasions of on-site alarming, automatic counting and automatic priming, which comprises a shell and a control circuit that is composed of a voltage-stabilizing power circuit, an infrared transmittance circuit, an infrared ray receiving and amplifying circuit, a voltage boosting comparator circuit and a delaying drive circuit. The bottom shell of the shell is connected with a circular ring through screw threads, a sealing ring is arranged between the bottom shell and the circular ring, and the control circuit board is situated in the bottom shell. The IC1 of the voltage-stabilizing power circuit is an L7812 voltage-stabilizing integrated block, the IC2 of the infrared transmittance circuit is an NE555 oscillating circuit integrated block, the IC3 of the infrared ray receiving and amplifying circuit and the IC4 of the voltage boosting comparator circuit are LM358 double operational amplifier integrated blocks, and the IC5 of the delaying drive circuit is an NE555 time base integrated block. The utility model has the advantages of wide application range, good sealing effect, etc.

Description

The reflection type infrared controller of waterproof

The utility model relates to a kind of reflection type infrared controller of waterproof that is used for onsite alarming, automatic counting, auto-flushing.

Existing infrared controller, general resin or the fluid sealant bonding of adopting of its sealing, sealing in this way, success ratio is low, poor durability, and circuit is corrosive poor radiation, therefore usable range is subjected to great restriction, is 100% or is soaked in underwater work or the occasion of the gas that is corrosive then can't be used in humidity.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and a kind of to have a waterproof sealing good and provide, the reflection type infrared controller of waterproof applied widely.

The purpose of this utility model is achieved in that it is made up of housing and control circuit two large divisions, its housing comprises drain pan and annular ring, drain pan and annular ring are provided with O-ring seal by being threaded between drain pan and the annular ring, and control circuit board places the drain pan bottom; Control circuit comprises that voltage stabilizing power supplying circuit, infrared transmitter, infrared ray receive amplifying circuit, the comparator circuit that boosts, its voltage stabilizing power supplying circuit by L ₇₈₁₂Integrated package of pressure-stabilizing IC ₁, bridge rectifier Q ₁, capacitor C ₁, C ₂, C ₃Form L ₇₈₁₂Ic chip ₁Pin 1 is input end and capacitor C ₁, C ₂Be connected, pin 2 ground connection, pin 3 is an output terminal, with capacitor C ₃, resistance R ₁Be connected the IC of infrared transmitter ₂Be NE ₅₅₅The oscillatory circuit integrated package, IC ₂Pin 2, pin 6 and capacitor C ₄, resistance R ₂Be connected pin 7 and resistance R ₁, R ₂Be connected, pin 4, pin 8 and IC ₁Pin 3 be connected, IC ₂Pin 3 and diode D ₁Negative pole, D ₂The anodal connection is by diode D ₁, D ₂With resistance R ₃Be connected, pin 1 ground connection, pin 5 passes through capacitor C ₅By ground; Infrared ray receives amplifying circuit by LM ₃₅₈Two integrated operational amplifier circuit IC ₃, triode BG ₁, capacitor C ₆, receive a G ₁, resistance R ₃, R ₄, R ₅, R ₆, R ₇, LM ₃₅₈Two integrated operational amplifier circuit IC ₃Pin 2 and capacitor C ₇Be connected pin 3 and resistance R ₇Be connected pin 4 ground connection, pin 8 and L ₇₈₁₂Regulator block IC ₁Pin 1 be connected, promptly connect power supply, pin 1 and resistance R ₆, capacitor C ₈Be connected; The comparator circuit that boosts comprises LM ₃₅₈Two integrated transporting discharging ic chips ₄, diode D ₃, D ₄, D ₆, resistance R ₈, R ₉, R ₁₀, capacitor C ₉, its IC ₄Pin 5 and diode D ₄Negative pole is connected, pin 6 and resistance R ₉Be connected pin 7 and diode D ₆Positive pole is connected; Delay driving circuit is by NE ₅₅₅The time base circuit ic chip ₅, capacitor C ₁₀, resistance R ₁₁, relay K, diode D ₅Composition, IC ₅Pin 2, pin 6 and capacitor C ₁₀, resistance R ₁₁, diode D ₆The negative pole utmost point connects, pin 1 ground connection, pin 3 and relay K, diode D ₅Positive pole is connected, pin 4, pin 8 and IC ₁Pin 1 be connected.

The purpose of this utility model can also reach by following measure: be provided with groove on drain pan top, its groove is provided with the twice bank, and O-ring seal is positioned at groove.

The utility model has following advantage compared to existing technology:

1, owing to be provided with O-ring seal between drain pan and the annular ring, above with the glass gland then threaded engagement screw and realize hermetically sealed, thereby good seal performance;

2, owing to good seal, so good endurance, circuit does not have corrosion; long service life; usable range is wide, can not only under the home condition, use, and be 100% in humidity, having also can operate as normal in volatility, corrosive gas and underwater work or other liquid environment.

The drawing explanation of accompanying drawing:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model drain pan polycrystalline substance synoptic diagram.

Fig. 3 is the utility model electricity theory diagram.

Fig. 4 is the utility model circuit diagram.

Among the figure, drain pan (1), O-ring seal (2), glass (3), annular ring (4), gauge hole (5), fixing feet (6), transmitter circuitry plate (7), circuit board receiver (8).

Below in conjunction with drawings and Examples in detail the utility model is described in detail: housing is made of drain pan (1) and annular ring (4) two large divisions, be equipped with screw thread on drain pan (1) and the annular ring (4), the two is by the screw thread rotation combination, drain pan (1) top is provided with groove, the twice bank is arranged in the groove, O-ring seal (2) places in the groove, with glass (3) concora crush in the above, when screwing annular ring (4) and seal, on glass planar, be provided with gauge hole (5), be used to place sensor, drain pan (1) outer wall bottom is provided with fixing feet (6), control circuit board is divided into the bottom that transmitter circuitry plate (7) and circuit board receiver (8) are fixed on drain pan (1), be sealed in the housing, as shown in Figure 2.

Control circuit such as Fig. 3 comprise that voltage stabilizing power supplying circuit, infrared transmitter, infrared ray receive amplifying circuit, the comparator circuit that boosts, delay driving circuit.Wherein the (see figure 4) voltage stabilizing power supplying circuit, comprise IC ₁, bridge rectifier Q ₁, capacitor C ₁, C ₂, C ₃, supply with each unit burning voltage.IC ₁Be L ₇₈₁₂Regulator block, IC ₁Pin 1 be input end, with capacitor C ₁, C ₂Link to each other, pin 2 ground connection, pin 3 is an output terminal, with capacitor C ₃, resistance R ₁Infrared transmitter is no steady oscillator, and it comprises IC ₂, resistance R ₁, R ₂, R ₃, diode D ₁, D ₂, capacitor C ₄, C ₅, D wherein ₁Be emitting head, because the effect of oscillator makes its emission infrared light pulse, IC ₂Be NE ₅₅₅The oscillatory circuit integrated package, IC ₂Pin 2, pin 6 and capacitor C ₄, resistance R ₂Link to each other, pin 1 ground connection 1, pin 8, pin 4 and IC ₁Pin 3 link to each other, promptly connect power supply, pin 5 passes through capacitor C ₅Join with ground; Infrared ray receives amplifying circuit and comprises IC ₃, triode BG ₁, receive a G ₁, capacitor C ₆, C ₇, resistance R ₃, R ₄, R ₅, R ₆, R ₇, IC ₃Be LM ₃₅₈Two integrated transporting discharging integrated packages, IC ₃Pin 2 and capacitor C ₇Link to each other pin 3 and resistance R ₇Link to each other pin 4 ground, pin 8 and L ₇₈₁₂Regulator block IC ₁Pin 1 be connected pin 1 and resistance R ₆, capacitor C ₈Be connected, when people or object block, by emitting head D ₁The infrared light of scattering is reflected, and receives a G ₁Reception is through triode BG ₁And IC ₃Amplify the formation amplitude and export subordinate to than the forceful electric power signal; Boost comparator circuit it comprise diode D ₃, D ₄, resistance R ₈, R ₉, R ₁₀, capacitor C ₉, C ₁₀, IC ₄, IC ₄Be LM ₃₅₈Two integrated transporting discharging integrated packages, IC ₄Pin 5 simultaneously and diode D ₄Negative pole, R ₈, C ₉Link to each other pin 6 and resistance R ₉, R ₁₀Link to each other pin 7 and diode D ₆Positive pole is connected.By IC ₃The electric signal of output is through diode D ₃, D ₄, resistance R ₈, R ₉After boosting, as by IC ₄, resistance R ₉, R ₁₀The input signal of the comparer that constitutes.When input signal is higher than comparison threshold, IC ₄The output high level, otherwise be low level; Delay driving circuit comprises capacitor C ₁₀, resistance R ₁₁, relay K, diode D ₅, IC ₅, IC wherein ₅Be NE ₅₅₅Time base circuit integrated package, IC ₅Pin 6, pin 2 and capacitor C ₁₀, resistance R ₁₁, diode D ₆Negative pole be connected pin 1 ground connection, pin 3 and relay K, diode D ₅Anodal continuous, pin 4, pin 8 and IC ₁Pin 1 links to each other.By the signal of the comparator circuit output of boosting through capacitor C ₁₀, resistance R ₁₁As NE ₅₅₅Time base circuit IC ₅Input signal, output signal go pilot relay K work.It is with solenoid valve DF that the output of this circuit drives load ₁Be example.

Claims (2)

1, the reflection type infrared controller of a kind of waterproof comprises housing and the control circuit of being made up of voltage stabilizing power supplying circuit, infrared transmitter, infrared ray reception amplifying circuit, the comparator circuit that boosts, delay driving circuit, it is characterized in that:

A, housing comprise drain pan and annular ring, and drain pan and annular ring are provided with O-ring seal by being threaded between drain pan and the annular ring, and control circuit board places the drain pan bottom;

The IC of b, voltage stabilizing power supplying circuit ₂Be L ₇₈₁₂Integrated package of pressure-stabilizing, IC ₁Pin 1 be input end, with capacitor C ₁, C ₂Be connected, pin 2 ground connection, pin 3 is an output terminal, with capacitor C ₃, resistance R ₁Be connected;

The IC of c, infrared transmitter ₂Be NE ₅₅₅The oscillatory circuit integrated package, IC ₂Pin 2, pin 6 and capacitor C ₄, resistance R ₂Be connected pin 7 and resistance R ₁, R ₂Be connected pin 4, pin 8 and IC ₁Pin 3 be connected, IC ₂Pin 3 and diode D ₁Negative pole, D ₂The anodal connection is by diode D ₁, D ₂With resistance R ₃Be connected, pin 1 ground connection, pin 5 passes through capacitor C ₅Ground connection;

D, infrared ray receive the 1C of amplifying circuit ₃Be LM ₃₅₈Two integrated operational amplifier circuits, IC ₃Pin 2 and capacitor C ₇Be connected pin 3 and resistance R ₇Be connected pin 4 ground connection, pin 8 and IC ₁Pin 1 be connected, pin 1 and resistance R ₆, capacitor C ₈Be connected;

The IC of e, the comparator circuit that boosts ₄Be LM ₃₅₈Two integrated operational amplifier circuits, IC ₄Pin 5 and diode D ₄Negative pole is connected, pin 6 and resistance R ₉Be connected pin 7 and diode D ₆Positive pole is connected;

The IC of f, delay driving circuit ₅Be NE ₅₅₅The time base circuit integrated package, IC ₅Pin 2, pin 6 and capacitor C ₁₀, resistance R ₁₁, diode D ₆Negative pole is connected, pin 1 ground connection, pin 3 and relay K, diode D ₅Positive pole is connected, pin 4, pin 8 and IC ₁Pin 1 be connected.

2, the reflection type infrared controller of waterproof according to claim 1 is characterized in that drain pan top is provided with groove, and its groove is provided with the twice bank, and O-ring seal is positioned at groove.

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