CN208579211U - A kind of LED bay light that induction hydraulic pressure rinses - Google Patents

Abstract

The utility model discloses a kind of LED bay lights that induction hydraulic pressure rinses, it is designed to waterproof construction, and there is a hydraulic pressure sensor, the hydraulic pressure for the water flow which perceives according to hydraulic pressure sensor issues normal light or flashing is excessive with the hydraulic pressure of early warning water flow；Advantage is since LED bay light has been designed to waterproof construction, it is provided with a hydraulic pressure sensor again, in this way when cleaning the LED bay light, when the hydraulic pressure of water flow reaches certain value, it can make the LED bay light that flashing occur excessive with the hydraulic pressure of early warning water flow, it needs to reduce the hydraulic pressure of water flow at this time, to guarantee that water will not enter the inside of the LED bay light in water flow flushing process, and then extends the service life of the LED bay light.

Description

A kind of LED bay light that induction hydraulic pressure rinses

Technical field

The utility model relates to a kind of LED lamps, more particularly, to a kind of LED bay light that induction hydraulic pressure rinses.

Background technique

LED bay light is widely used in enterprise's production, since the power of general LED bay light is bigger, For the needs of heat dissipation, LED bay light is generally designed to non-watertight or bad waterproof performance structure.But there have to be some special Enterprise, such as food factory or the relatively high enterprise of purity requirements, it is often necessary to the ground in workshop, metope and using equipment into Row cleaning, including lighting apparatus, this is because: in food workshop, due to food generate in the process of processing and manufacturing it is thin Small dust particles and vapor can flow the light body surface for being adsorbed on LED bay light with air, therefore not only will affect lamp body Neatly, and bacterium can be bred, influences food hygiene.Currently, during the lamp body to LED bay light is rinsed, generally It is rinsed using giant, however, if washing pressure is excessive, after the waterproofing grade of LED bay light, then water is just The inside of lamp body can be entered, the intracorporal LED lamp bead deterioration of lamp, the function deterioration of LED bay light, to can shorten can be caused The service life of LED bay light.

Summary of the invention

The technical problem to be solved by the utility model is to provide a kind of LED bay lights that induction hydraulic pressure rinses, and have Water-proof function, and rinse water can be effectively prevent to enter in LED bay light.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of LED work that induction hydraulic pressure rinses Mine lamp, it is characterised in that: the LED bay light is designed to waterproof construction, and has a hydraulic pressure sensor, the LED bulkhead lamp root The hydraulic pressure of the water flow perceived according to the hydraulic pressure sensor issues normal light or flashing is excessive with the hydraulic pressure of early warning water flow.

The LED bay light includes in the lamp body of horn-like structure, driving power, annular lamp panel, annular LED light source plate, thoroughly Light shield and the hydraulic pressure sensor, the driving power are installed in the inner cavity of the lamp body, the driving power It is electrically connected with power supply line, the power supply line is set on the side at the slot end of the lamp body by waterproof connector waterproof, The inner ring of the annular lamp panel is connected on the wide mouth end of the lamp body, and the inner ring of the annular lamp panel and described The first sealing mechanism is provided between the wide mouth end of lamp body, the annular LED light source plate is installed on the annular lamp panel On inner bottom surface, the neighboring of the translucent cover is connected on the top edge of the outer ring of the annular lamp panel, and described Translucent cover neighboring and the annular lamp panel outer ring top edge between be provided with the second sealing mechanism, it is described Translucent cover cover in outside the annular LED light source plate, the hydraulic pressure sensor by probe power and with the sensing The sensor probe of device power electric connection forms, and the probe power is installed in the inner cavity of the lamp body, described Probe power is not in contact with each other with the driving power, and the probe power is electrically connected with the driving power, institute The sensor probe stated is installed on the top on the central area of the translucent cover and exposing the translucent cover, and described is saturating Third sealing mechanism is provided between the central area of light shield and the inner ring of the annular lamp panel.Due to power supply line and lamp body The junction that waterproof connector, annular lamp panel and lamp body are provided between the side at slot end is provided with the first sealing mechanism, light transmission The junction of cover and annular lamp panel is provided with the second sealing mechanism, the central area for the translucent cover for being equipped with sensor probe and ring Third sealing mechanism is provided between shape lamp panel, i.e., the LED bay light has water-proof function, therefore can use the water of certain hydraulic pressure Stream rinses；Due to being provided with hydraulic pressure sensor, the water of sensor probe meeting real-time perception water flow when rinsing the LED bay light Pressure, when the hydraulic pressure for perceiving water flow is more than given threshold, driving power output PWM (pulse width modulation) signal makes the LED work Mine lamp issues the light of flashing, and the hydraulic pressure of early warning water flow is excessive, need to adjust the hydraulic pressure of water flow；When the hydraulic pressure for perceiving water flow is being set Driving power, which normally exports, when in threshold value makes the LED bay light issue normal light, uses water of the hydraulic pressure in given threshold in this way Stream will not there is a phenomenon where water to enter in lamp body when rinsing the LED bay light.

The driving power is connected in the side of the inner cavity of the lamp body, and is encapsulated with casting glue, surrounds described Driving power to be conducive to heat dissipation, insulation and the fixation of the driving power；The probe power passes through fixed branch Frame is fixed on the other side of the inner cavity of the lamp body, passes through baffle between the probe power and the driving power It separates；The central area of the translucent cover is recessed concave surface, and the sensor probe is installed in the concave surface On heart position and expose the concave surface；The neighboring of the translucent cover passes through outer press ring and outer press ring screw and described The top edge of the outer ring of annular lamp panel is fixedly connected, and the concave surface passes through inner pressure ring and inner pressure ring screw and the annular The inner ring of lamp panel is fixedly connected.

The LED bay light further includes the installation hook for being hung on the LED bay light on ceiling, and the installation is hung Hook is installed on the slot end of the lamp body.

The driving power is made of constant-current control circuit and voltage control circuit, the constant-current control circuit it is defeated Enter end and connect access alternating current, the output end of the constant-current control circuit and the annular LED light source with the power supply line Plate connection, the input terminal of the voltage control circuit are connect with the output end of the sensor probe, the sensor The output end of probe exports the voltage signal being converted by the hydraulic pressure of water flow to the voltage control circuit, the voltage control The output end of circuit processed is connect with the constant-current control circuit.Here, the hydraulic pressure of sensor probe real-time perception water flow, by water The hydraulic pressure of stream is converted into corresponding voltage signal and is transferred to voltage control circuit, makes voltage control circuit output unlike signal extremely Constant-current control circuit, thus change the working condition of the LED bay light, i.e., when the hydraulic pressure of water flow is low, sensor probe output Low-voltage is to voltage control circuit, and voltage control circuit does not export any signal to constant-current control circuit, and the LED bay light is normal It lights；When the hydraulic pressure of water flow is high, sensor probe output HIGH voltage to voltage control circuit, voltage control circuit exports PWM Signal to constant-current control circuit, LED bay light flashing is alarmed.

By voltage comparator circuit, voltage feedback loop, pwm control circuit, PWM circuit occurs for the voltage control circuit And for providing operating voltage for the voltage comparator circuit power supply circuit composition, the voltage comparator circuit respectively with The output end of the sensor probe, the voltage feedback loop are connected with the pwm control circuit, the PWM The output end that circuit occurs is connect with the pwm control circuit, the output end of the pwm control circuit and the constant current Control circuit connection；Output of the voltage comparator circuit to its initial threshold, that is, reference voltage and the sensor probe The voltage signal of end output is compared, and exports comparison result to the PWM control circuit；The Voltage Feedback returns The comparison result of the road feedback voltage comparator circuit, is adjusted to drop the initial threshold of the voltage comparator circuit Low initial threshold makes the voltage comparator circuit not change in initial threshold and threshold range adjusted；It is described PWM the output end of circuit occurs export one triangular wave to the pwm control circuit, the pwm control circuit is to three Angle wave is compared with reference voltage, and exports PWM signal to the constant-current control circuit, so that the LED bay light be made to dodge It is bright.

The power supply circuit include first resistor, second resistance, the first triode, zener diode, first capacitor and One end of second capacitor, the first resistor is connected with 12V voltage, the other end of the first resistor respectively with it is described The collector of the first triode be connected with one end of the second resistance, the base stage of first triode and described Second resistance the other end be connected after be connected with the cathode of the zener diode, the transmitting of first triode Pole is connected with 5V voltage, the emitter of first triode respectively with one end of the first capacitor and described One end of two capacitors is connected, the other end of positive, described first capacitor of the zener diode, second electricity The other end of appearance is grounded, the emitter of first triode, one end of the first capacitor and second electricity Public connecting end after one end of appearance is connected is connect as feeder ear with the voltage comparator circuit.Here, power supply circuit Feeder ear exports 5V voltage, i.e. power supply circuit provides 5V operating voltage for voltage comparator circuit.

The voltage comparator circuit includes 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, Eight resistance, the 9th resistance, the tenth resistance, eleventh resistor, third capacitor, the second triode, first voltage comparator, it is described Voltage feedback loop includes backward dioded and second voltage comparator；The output end of the sensor probe respectively with it is described One end of the 8th resistance, one end of the third capacitor, the 3rd resistor one end connection, the 8th resistance The other end be connected with the reverse side of the first voltage comparator, one end of the 6th resistance and the power supply The feeder ear of circuit is connected, the other end of the 6th resistance respectively with one end of the 4th resistance and described The positive terminal of one voltage comparator is connected, the other end of the 4th resistance respectively with one end of the 5th resistance and One end of 7th resistance is connected, the other end, described of the other end of the 5th resistance, the 3rd resistor Third capacitor other end ground connection, the other end of the 7th resistance is connected with the anode of the backward dioded, The output end of the first voltage comparator respectively with one end of the 9th resistance, the tenth resistance one end and The positive terminal of the second voltage comparator is connected, and the other end of the 9th resistance is compared with the first voltage The power end of device connects, and the power end of the first voltage comparator is connected with the feeder ear of the power supply circuit, institute The other end for the tenth resistance stated is connected with the base stage of one end of the eleventh resistor and second triode respectively It connects, the emitter ground connection of the other end of the eleventh resistor, second triode, the collection of second triode Electrode is connected with the pwm control circuit, the cathode of the backward dioded and the second voltage comparator Output end is connected, and the negative phase end of the second voltage comparator is connected with the output end of the sensor probe, institute The power end for the second voltage comparator stated is connected with 5V voltage, the ground terminal of the first voltage comparator and described The ground terminal of second voltage comparator is grounded.In voltage comparator circuit, the positive terminal of first voltage comparator sets initial threshold Value is reference voltage Vref, and the voltage signal of the output end output of sensor probe is input to the reverse phase of first voltage comparator It holds, the second triode is connected on the output end of first voltage comparator, when the voltage of the reverse side of first voltage comparator is big When the voltage of positive terminal, the output end of first voltage comparator exports low level (0V), the cut-off of the second triode；Conversely, working as When the voltage of the reverse side of first voltage comparator is less than the voltage of positive terminal, the high electricity of output end output of first voltage comparator Flat (5V), the second triode ON；In voltage feedback loop, when the output end of first voltage comparator exports low level (0V) To second voltage comparator positive terminal when, since the voltage that the reverse side of second voltage comparator inputs is greater than 0V, the The output end of two voltage comparators exports low level (0V), and backward dioded is connected, changes first voltage comparator at this time Initial threshold, reduce initial threshold, the threshold value after being adjusted, in the range of initial threshold and threshold value adjusted, The variation of the hydraulic pressure for the water flow that sensor probe perceives will not influence the LED bay light；When the output of first voltage comparator When end exports the positive terminal of high level (5V) to second voltage comparator, due to the electricity of the reverse side input of second voltage comparator Pressure is less than 5V, therefore the output end of second voltage comparator exports high level (5V), ends backward dioded, first voltage ratio Positive terminal compared with device comes back to initial threshold.

The pwm control circuit includes twelfth resistor, thirteenth resistor, the 14th resistance, third transistor and Three voltage comparators, the positive terminal of the tertiary voltage comparator is respectively with the voltage comparator circuit (i.e. with the two or three The collector of pole pipe) it is connected with the PWM output end that circuit occurs, the negative phase end point of the tertiary voltage comparator Be not connected with one end of one end of the twelfth resistor and the thirteenth resistor, the twelfth resistor it is another One end is connected with the feeder ear of the power supply circuit, the other end ground connection of the thirteenth resistor, the third electricity The output end of pressure comparator is connected with described one end of the 14th resistance and the base stage of the third transistor respectively, institute The other end for the 14th resistance stated is connected with the power end of the tertiary voltage comparator, and the tertiary voltage compares The power end of device is connected with 5V voltage, the ground connection of the emitter of the third transistor, the tertiary voltage comparator End ground connection, output end and the current constant control of the collector of the third transistor as the pwm control circuit Circuit is connected.In pwm control circuit, when the output end of first voltage comparator exports high level (5V) to the second triode When, the second triode ON is grounded the positive terminal of tertiary voltage comparator, at this time the electricity of the reverse side of tertiary voltage comparator Pressure is greater than positive terminal, and output end output low level (0V) of tertiary voltage comparator cuts third transistor to third transistor Only, any signal is not exported to constant-current control circuit, the LED bay light normal illumination；Conversely, working as the defeated of first voltage comparator When outlet output low level (0V) to the second triode, the cut-off of the second triode, the output end output three of circuit occurs for PWM at this time Angle wave is to the positive terminal of tertiary voltage comparator, and output PWM believes afterwards compared with the voltage on the reverse side of tertiary voltage comparator Number to third transistor, third transistor output pwm signal to constant-current control circuit, LED bay light flashing alarm.

It includes the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the tenth that circuit, which occurs, for the PWM Nine resistance, the 4th capacitor and the 4th voltage comparator, the positive terminal of the 4th voltage comparator is respectively with the described the tenth One end of five resistance, the 16th resistance one end be connected with one end of the 17th resistance, the described the tenth The other end of five resistance is connected with the output end of the power supply circuit, the negative phase end difference of the 4th voltage comparator It is connected with one end of one end of the 4th capacitor and the 19th resistance, the 4th voltage comparator is born Phase end is connected as the PWM output end that circuit occurs with the pwm control circuit, the 4th capacitor it is another The other end of one end and the 16th resistance ground connection, the output end of the 4th voltage comparator is respectively with described the The other end of 19 resistance, the 17th resistance the other end be connected with one end of the 18th resistance, it is described The other end of the 18th resistance be connected with the other end of the 15th resistance, the electricity of the 4th voltage comparator Source is connected with 5V voltage, the ground terminal ground connection of the 4th voltage comparator.Occur in circuit in PWM, the when beginning Four capacitor chargings, since the voltage at the 4th capacitor both ends is smaller, so that being input on the reverse side of the 4th voltage comparator Voltage be less than the voltage of positive terminal, the output end output high level of the 4th voltage comparator makes the 4th capacitor continue to charge, the Four capacitors charge when starting electric discharge after electricity, since the voltage at the 4th capacitor both ends at this time is higher, so that being input to the 4th electricity The voltage on the reverse side of comparator is pressed to be greater than the voltage of positive terminal, the output end of the 4th voltage comparator exports low level, the Four capacitors continue electric discharge until the voltage at the 4th capacitor both ends is lower than the voltage in the positive terminal of the 4th voltage comparator, due to the Four capacitors generate triangular wave in being charged and discharged whole process, so that the output end that circuit occurs for PWM exports triangular wave To pwm control circuit.

Compared with the prior art, the advantages of the utility model are: since LED bay light has been designed to waterproof construction, It is provided with a hydraulic pressure sensor again, in this way when cleaning the LED bay light, when the hydraulic pressure of water flow reaches certain value, can make LED bay light generation flashing is excessive with the hydraulic pressure of early warning water flow, needs to reduce the hydraulic pressure of water flow at this time, to guarantee in water flow Water will not enter the inside of the LED bay light in flushing process, and then extend the service life of the LED bay light；By right The LED bay light is cleaned, and the growth of bacterium is effectively prevented.

Detailed description of the invention

Fig. 1 is the overall structure diagram one of the LED bay light of the utility model；

Fig. 2 is the overall structure diagram two of the LED bay light of the utility model；

Fig. 3 is the decomposition texture schematic diagram of the LED bay light of the utility model；

Fig. 4 is the composition and connection schematic diagram of the driving power in the LED bay light of the utility model；

Fig. 5 is that the composition of the voltage control circuit in the driving power in the LED bay light of the utility model and connection are shown It is intended to；

Fig. 6 is the circuit diagram of the voltage control circuit in the driving power in the LED bay light of the utility model；

Fig. 7 a is the output circuit figure of voltage control circuit under low voltage situations；

Fig. 7 b is the output circuit figure of voltage control circuit under high-pressure situations；

Fig. 8 a is the circuit diagram for the 4th capacitor charging that PWM occurs in circuit；

Fig. 8 b is the circuit diagram for the 4th capacitor electric discharge that PWM occurs in circuit；

Fig. 8 c is the schematic diagram that the triangular wave that circuit generates occurs for PWM；

Fig. 8 d is the schematic diagram for the voltage range that the triangular wave that circuit generates occurs for PWM；

Fig. 8 e is the schematic diagram for the pwm signal that the output end of pwm control circuit exports.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As shown in Figure 1, Figure 2 and Figure 3, the utility model proposes a kind of induction hydraulic pressure rinse LED bay light, the LED Bulkhead lamp is designed to waterproof construction, and has a hydraulic pressure sensor 1, the water which perceives according to hydraulic pressure sensor 1 The hydraulic pressure of stream issues normal light or flashing is excessive with the hydraulic pressure of early warning water flow.The LED bay light includes in horn-like structure Lamp body 2, driving power 3, annular lamp panel 4, annular LED light source plate 5, translucent cover 6 and hydraulic pressure sensor 1, driving power 3 are installed on In the inner cavity of lamp body 2, driving power 3 is electrically connected with power supply line 7, and power supply line 7 is set to lamp body 2 by 71 waterproof of waterproof connector On the side at slot end, the inner ring of annular lamp panel 4 is connected on the wide mouth end of lamp body 2, and the inner ring and lamp body 2 of annular lamp panel 4 Wide mouth end between be provided with the first sealing mechanism 81, annular LED light source plate 5 is installed on the inner bottom surface of annular lamp panel 4, thoroughly The neighboring of light shield 6 is connected on the top edge of the outer ring of annular lamp panel 4, and the neighboring of translucent cover 6 and circular lamp The second sealing mechanism 82 is provided between the top edge of the outer ring of disk 4, translucent cover 6 covers in outside annular LED light source plate 5, hydraulic pressure Sensor 1 is made of probe power 11 and the sensor probe being electrically connected with probe power 11 12, and probe power 11 is pacified In inner cavity loaded on lamp body 2, probe power 11 is not in contact with each other with driving power 3, and probe power 11 is electrically connected with driving power 3 It connects, sensor probe 12 is installed on the top on the central area of translucent cover 6 and exposing translucent cover 6, the center of translucent cover 6 Third sealing mechanism 83 is provided between domain and the inner ring of annular lamp panel 4.Due to the side of power supply line 7 and the slot end of lamp body 2 Between be provided with waterproof connector 71, annular lamp panel 4 and the junction of lamp body 2 and be provided with the first sealing mechanism 81, translucent cover 6 and ring The junction of shape lamp panel 4 be provided with the second sealing mechanism 82, the translucent cover 6 for being equipped with sensor probe 12 central area with It is provided with third sealing mechanism 83 between annular lamp panel 4, i.e., the LED bay light has water-proof function, therefore can use certain water The water flow of pressure is rinsed；Due to being provided with hydraulic pressure sensor 1, sensor probe 12 can be felt in real time when rinsing the LED bay light The hydraulic pressure for knowing water flow, when the hydraulic pressure for perceiving water flow is more than given threshold, driving power 3 exports PWM (pulse width modulation) letter The LED bay light number is set to issue the light of flashing, the hydraulic pressure of early warning water flow is excessive, need to adjust the hydraulic pressure of water flow；When perceiving water flow Hydraulic pressure in given threshold when driving power 3 normally output makes the LED bay light issue normal light, use hydraulic pressure to exist in this way Water flow in given threshold will not enter in lamp body 2 when rinsing the LED bulkhead lamp there is a phenomenon where water.

In the present embodiment, driving power 3 is connected in the side of the inner cavity of lamp body 2, and is encapsulated with casting glue, surrounds drive Power supply 3 is moved to be conducive to the heat dissipation, insulation and fixation of driving power 3；Probe power 11 passes through fixed bracket 85 and is fixed on lamp The other side of the inner cavity of body 2 is separated between probe power 11 and driving power 3 by baffle 84；The central area of translucent cover 6 It is recessed concave surface 61, sensor probe 12 is installed on the center of concave surface 61 and exposes concave surface 61；The periphery of translucent cover 6 Edge is fixedly connected by outer press ring 62 and outer press ring screw 63 with the top edge of the outer ring of annular lamp panel 4, and concave surface 61 passes through Inner pressure ring 64 and inner pressure ring screw 65 are fixedly connected with the inner ring of annular lamp panel 4.

In the present embodiment, which further includes the installation hook for being hung on the LED bay light on ceiling 9, installation hook 9 is installed on the slot end of lamp body 2.

In the present embodiment, as shown in figure 4, driving power 3 is made of constant-current control circuit 31 and voltage control circuit 32, The input terminal of constant-current control circuit 31 connect access alternating current, the output end and annular LED light of constant-current control circuit 31 with power supply line 7 Source plate 5 connects, and the input terminal of voltage control circuit 32 is connect with the output end of sensor probe 12, the output of sensor probe 12 End exports the voltage signal being converted by the hydraulic pressure of water flow to voltage control circuit 32, the output end and perseverance of voltage control circuit 32 Flow control circuit 31 connects.Here, the hydraulic pressure of 12 real-time perception water flow of sensor probe, the hydraulic pressure of water flow is converted into accordingly Voltage signal is simultaneously transferred to voltage control circuit 32, and voltage control circuit 32 is made to export unlike signal to constant-current control circuit 31, To change the working condition of the LED bay light, i.e., when the hydraulic pressure of water flow is low, sensor probe 12 exports low-voltage to voltage Control circuit 32, voltage control circuit 32 do not export any signal to constant-current control circuit 31, which normally lights； When the hydraulic pressure of water flow is high, 12 output HIGH voltage of sensor probe to voltage control circuit 32, voltage control circuit 32 is exported Pwm signal to constant-current control circuit 31, LED bay light flashing is alarmed.

In the present embodiment, as shown in figure 5, voltage control circuit 32 is by voltage comparator circuit 33, voltage feedback loop 34, pwm control circuit 35, PWM occur circuit 36 and for providing the power supply circuit 37 of operating voltage for voltage comparator circuit 33 Composition, voltage comparator circuit 33 respectively with the output end of sensor probe 12, voltage feedback loop 34 and pwm control circuit 35 Connection, the output end that circuit 36 occurs for PWM are connect with pwm control circuit 35, the output end of PWM control circuit 35 and constant current control Circuit 31 processed connects；Voltage comparator circuit 33 exports the output end of its initial threshold, that is, reference voltage and sensor probe 12 Voltage signal is compared, and exports comparison result to pwm control circuit 35；34 feedback voltage comparison circuit of voltage feedback loop 33 comparison result is adjusted to reduce initial threshold the initial threshold of voltage comparator circuit 33, makes voltage comparator circuit 33 do not change in initial threshold and threshold range adjusted；The output end that circuit 36 occurs for PWM exports a triangle Wave is compared triangular wave with reference voltage to pwm control circuit 35, pwm control circuit 35, and output pwm signal is to constant current Control circuit 31, so that the LED bay light be made to flash.

In the present embodiment, as shown in fig. 6, power supply circuit 37 includes first resistor R1, second resistance R2, the first triode Q1, zener diode ZD1, first capacitor C1 and the second capacitor C2, first resistor R1 one end be connected with 12V voltage, first The other end of resistance R1 is connected with one end of the collector of the first triode Q1 and second resistance R2 respectively, the first triode Q1 Base stage and second resistance R2 the other end be connected after be connected with the cathode of zener diode ZD1, the hair of the first triode Q1 Emitter-base bandgap grading is connected with 5V voltage, the emitter of the first triode Q1 respectively with one end of first capacitor C1 and the second capacitor C2 one End is connected, the anode of zener diode ZD1, the other end of first capacitor C1, the second capacitor C2 the other end be grounded, first Public connecting end after the emitter of triode Q1, one end of first capacitor C1 are connected with one end of the second capacitor C2 is used as confession Electric end is connect with voltage comparator circuit 33.Here, the feeder ear of power supply circuit 37 exports 5V voltage, i.e. power supply circuit 37 is voltage Comparison circuit 33 provides 5V operating voltage.

In the present embodiment, as shown in fig. 6, voltage comparator circuit 33 includes 3rd resistor R3, the 4th resistance R4, the 5th electricity Hinder R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, the Three capacitor C3, the second triode Q2, first voltage comparator U1, voltage feedback loop 34 include backward dioded D1 and second Voltage comparator U2；The output end of sensor probe 12 respectively with one end of the 8th resistance R8, one end of third capacitor C3, One end of three resistance R3 connects, and the other end of the 8th resistance R8 is connected with the reverse side of first voltage comparator U1, the 6th electricity One end of resistance R6 is connected with the feeder ear of power supply circuit 37, the other end of the 6th resistance R6 one end with the 4th resistance R4 respectively Be connected with the positive terminal of first voltage comparator U1, the other end of the 4th resistance R4 respectively with one end of the 5th resistance R5 and One end of seven resistance R7 is connected, the other end of the 5th resistance R5, the other end of 3rd resistor R3, third capacitor C3 the other end Ground connection, the other end of the 7th resistance R7 are connected with the anode of backward dioded D1, the output end point of first voltage comparator U1 It is not connected with the positive terminal of one end of the 9th resistance R9, one end of the tenth resistance R10 and second voltage comparator U2, the 9th electricity The other end of resistance R9 is connect with the power end of first voltage comparator U1, the power end and power supply circuit of first voltage comparator U1 37 feeder ear is connected, the other end of the tenth resistance R10 respectively with one end of eleventh resistor R11 and the second triode Q2 Base stage is connected, the emitter ground connection of the other end of eleventh resistor R11, the second triode Q2, the current collection of the second triode Q2 Pole is connected with pwm control circuit 35, and the cathode of backward dioded D1 is connected with the output end of second voltage comparator U2, the The negative phase end of two voltage comparator U2 is connected with the output end of sensor probe 12, the power end of second voltage comparator U2 with 5V voltage is connected, the ground terminal of first voltage comparator U1 and the ground terminal ground connection of second voltage comparator U2.In voltage ratio Compared in circuit 33, the positive terminal of first voltage comparator U1 sets initial threshold, that is, reference voltage Vref, sensor probe 12 The voltage signal of output end output is input to the reverse side of first voltage comparator U1, on the output end of first voltage comparator U1 It is connected with the second triode Q2, when the voltage of the reverse side of first voltage comparator U1 is greater than the voltage of positive terminal, the first electricity The output end of comparator U1 is pressed to export low level (0V), the second triode Q2 cut-off；Conversely, working as the anti-of first voltage comparator U1 When the voltage at phase end is less than the voltage of positive terminal, the output end of first voltage comparator U1 exports high level (5V), the two or three pole Pipe Q2 conducting；In voltage feedback loop 34, when the output end of first voltage comparator U1 exports low level (0V) to the second electricity When pressing the positive terminal of comparator U2, since the voltage that the reverse side of second voltage comparator U2 inputs is greater than 0V, the second electricity It presses the output end of comparator U2 to export low level (0V), backward dioded D1 is connected, changes first voltage comparator at this time The initial threshold of U1, reduces initial threshold, the threshold value after being adjusted, in the range of initial threshold and threshold value adjusted Interior, the variation of the hydraulic pressure for the water flow that sensor probe 12 perceives will not influence the LED bulkhead lamp；When first voltage comparator Output end output high level (5V) of U1 to second voltage comparator U2 positive terminal when, it is anti-due to second voltage comparator U2 The voltage of phase end input is less than 5V, therefore the output end of second voltage comparator U2 exports high level (5V), makes backward dioded D1 cut-off, the positive terminal of first voltage comparator U1 come back to initial threshold.

In the present embodiment, as shown in fig. 6, pwm control circuit 35 include twelfth resistor R12, thirteenth resistor R13, 14th resistance R14, third transistor Q3 and tertiary voltage comparator U3, the positive terminal of tertiary voltage comparator U3 respectively with electricity The output end of pressure comparison circuit 33 (i.e. with the collector of the second triode Q2) and PWM generation circuit 36 is connected, tertiary voltage The negative phase end of comparator U3 is connected with one end of one end of twelfth resistor R12 and thirteenth resistor R13 respectively, the 12nd electricity The other end of resistance R12 is connected with the feeder ear of power supply circuit 37, the other end ground connection of thirteenth resistor R13, tertiary voltage ratio Output end compared with device U3 is connected with the base stage of one end of the 14th resistance R14 and third transistor Q3 respectively, the 14th resistance The other end of R14 is connected with the power end of tertiary voltage comparator U3, the power end and 5V voltage of tertiary voltage comparator U3 It is connected, the emitter of third transistor Q3, the ground terminal of tertiary voltage comparator U3 are grounded, the collector of third transistor Q3 Output end as pwm control circuit 35 is connected with constant-current control circuit 31.In pwm control circuit 35, work as first voltage When output end output high level (5V) to the second triode of comparator U1, the second triode ON makes tertiary voltage comparator The positive terminal of U3 is grounded, and the voltage of the reverse side of tertiary voltage comparator U3 is greater than positive terminal, tertiary voltage comparator U3 at this time Output end output low level (0V) to third transistor, end third transistor, do not export any signal to current constant control Circuit 31, the LED bay light normal illumination；Conversely, when output end output low level (0V) of first voltage comparator U1 is to the When two triodes, the second triode cut-off, the output end that circuit 36 occurs for PWM at this time exports triangular wave to tertiary voltage comparator The positive terminal of U3, compared with the voltage on the reverse side of tertiary voltage comparator U3 after output pwm signal to third transistor, the Three triode output pwm signals to constant-current control circuit 31, LED bay light flashing is alarmed.

In the present embodiment, as shown in fig. 6, PWM occur circuit 36 include the 15th resistance R15, the 16th resistance R16, 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 4th capacitor C4 and the 4th voltage comparator U4, the 4th electricity Press comparator U4 positive terminal respectively with one end of the 15th resistance R15, one end of the 16th resistance R16 and the 17th resistance One end of R17 is connected, and the other end of the 15th resistance R15 is connected with the output end of power supply circuit 37, and the 4th voltage compares The negative phase end of device U4 is connected with one end of one end of the 4th capacitor C4 and the 19th resistance R19 respectively, the 4th voltage comparator The negative phase end of U4 is connected as the PWM output end that circuit 36 occurs with PWM control circuit 35, the other end of the 4th capacitor C4 It is grounded with the other end of the 16th resistance R16, the output end of the 4th voltage comparator U4 is another with the 19th resistance R19 respectively End, the other end of the 17th resistance R17 and the 18th resistance R18 one end be connected, the other end of the 18th resistance R18 and the The other end of 15 resistance R15 is connected, and the power end of the 4th voltage comparator U4 is connected with 5V voltage, and the 4th voltage compares The ground terminal of device U4 is grounded.Occur in circuit 36 in PWM, the 4th capacitor C4 charges when beginning, due to the 4th both ends capacitor C4 Voltage is smaller, so that voltage of the voltage being input on the reverse side of the 4th voltage comparator U4 less than positive terminal, the 4th The output end output high level of voltage comparator U4 makes the 4th capacitor C4 continue to charge, and the 4th capacitor C4 starts to discharge after charging electricity When, since the voltage at the 4th both ends capacitor C4 at this time is higher, so that being input on the reverse side of the 4th voltage comparator U4 Voltage be greater than the voltage of positive terminal, the output end of the 4th voltage comparator U4 exports low level, and the 4th capacitor C4 continues to discharge Until the voltage in positive terminal of the voltage at the 4th both ends capacitor C4 lower than the 4th voltage comparator U4, since the 4th capacitor C4 exists It is charged and discharged in whole process and generates triangular wave, so that the output end that circuit 36 occurs for PWM exports triangular wave to PWM In control circuit 35.

In the present embodiment, waterproof connector 71 uses the prior art；First sealing mechanism 81,82 and of the second sealing mechanism Third sealing mechanism 83 is all made of existing sealing ring, other sealing structures can also be used in when specific implementation；Probe power 11 The prior art is all made of with sensor probe 12；Constant-current control circuit 31 uses the prior art.

The working principle of the voltage control circuit of the LED bay light are as follows: the initial threshold of setting first voltage comparator U1 I.e. reference voltage is 3.5V, and when the voltage signal that the output end of sensor probe 12 exports is less than 3.5V, first voltage compares The output end of device U1 exports high level (5V), and the output end of the second triode ON ground connection, pwm control circuit 35 exports low level (0V) to third transistor Q3, third transistor cut-off, constant-current control circuit 31 is normal to be exported, the LED bay light normal illumination； Meanwhile the positive terminal of second voltage comparator U2 is high level (5V), the voltage of the reverse side of second voltage comparator U2 is less than ((5V), backward dioded D1 are not turned on the output end output high level of 5V, second voltage comparator U2, at this time first voltage ratio Initial threshold compared with device U1 is constant.When the voltage signal that the output end of sensor probe 12 exports is greater than 3.5V, first voltage Output end output low level (0V) of comparator U1 is to the second triode, the cut-off of the second triode, pwm control circuit 35 it is defeated Outlet output pwm signal is to third transistor, third transistor output pwm signal to constant-current control circuit 31, the LED bay light Flashing alarm；Meanwhile the voltage of the positive terminal of second voltage comparator U2 is low level (0V), second voltage comparator U2's is anti- The voltage at phase end is greater than 0V, and the output end of second voltage comparator U2 exports low level (0V), backward dioded D1 conducting, and first The voltage of the positive terminal of voltage comparator U1 becomes branch pressure voltage, may be configured as input voltage 1.8V, should in this section interval LED bay light persistently flashes alarm.

Fig. 7 a gives the output circuit figure of voltage control circuit under low voltage situations, the output end output of sensor probe 12 Voltage signal be input to the reverse side of first voltage comparator U1, the 6th resistance R6 and the 4th resistance R4, the 5th resistance R5 Branch pressure voltage is input to the positive terminal of first voltage comparator U1, and the voltage of the reverse side of first voltage comparator U1 is less than at this time The voltage of positive terminal, first voltage comparator U1 output end output high level (5V) to the second triode base stage, the two or three Pole pipe conducting, the positive terminal ground connection for the tertiary voltage comparator U3 being connected with the collector of the second triode, and tertiary voltage ratio The voltage of reverse side compared with device U3 is the branch pressure voltage of twelfth resistor R12 and thirteenth resistor R13, which is greater than The voltage of the positive terminal of tertiary voltage comparator U3, at this time output end output low level (0V) of tertiary voltage comparator U3 to the The base stage of three triode Q3, third transistor Q3 cut-off, constant-current control circuit 31 normally export, the LED bay light normal illumination.

Fig. 7 b gives the output circuit figure of voltage control circuit under high-pressure situations, the output end output of sensor probe 12 Voltage signal be input to the reverse side of first voltage comparator U1, the 6th resistance R6 and the 4th resistance R4, the 5th resistance R5 Branch pressure voltage is input to the positive terminal of first voltage comparator U1, and the voltage of the reverse side of first voltage comparator U1 is greater than at this time The voltage of positive terminal, first voltage comparator U1 output end output low level (0V) to the second triode base stage, the two or three Pole pipe cut-off, the positive terminal and PWM for the tertiary voltage comparator U3 being connected with the collector of the second triode occur circuit 36 and connect It connects, and the voltage of the reverse side of tertiary voltage comparator U3 is the branch pressure voltage of twelfth resistor R12 and thirteenth resistor R13, After the branch pressure voltage is compared with the triangular wave that the generation of circuit 36 occurs of the PWM in the positive terminal of tertiary voltage comparator U3 Base stage of the output pwm signal to third transistor Q3, third transistor Q3 conducting, generation pwm signal to constant-current control circuit 31, LED bay light flashing alarm.

Fig. 8 a gives the circuit diagram for the 4th capacitor charging that PWM occurs in circuit, and Fig. 8 b gives PWM and occurs in circuit The 4th capacitor electric discharge circuit diagram, Fig. 8 c give PWM occur circuit generate triangular wave schematic diagram.As the 4th capacitor C4 Partial pressure when charging, after the 15th resistance R15 and the 18th resistance R18, the 17th resistance R17 are in parallel with the 16th resistance R16 Positive terminal of the voltage input to the 4th voltage comparator U4, the 18th resistance R18 and the 17th resistance R17, the 19th resistance R19 Branch pressure voltage be input to the reverse side of the 4th capacitor C4 and the 4th voltage comparator U4, due to the 4th voltage comparator U4's The voltage of reverse side is determined by the voltage at the 4th both ends capacitor C4, therefore the 4th capacitor C4 charges when beginning, and the 4th voltage compares The voltage of the reverse side of device U4 is less than the voltage of positive terminal, and the output end of the 4th voltage comparator U4 exports high level to the 4th electricity Hold and continues to charge to the 4th capacitor C4 on C4.When starting electric discharge after the 4th capacitor C4 charges electricity, the 4th voltage comparator U4's Branch pressure voltage after the voltage of positive terminal is the 15th resistance R15 and the 16th resistance R16, the 17th resistance R17 is in parallel, the The voltage of the reverse side of four voltage comparator U4 is the voltage at the 4th both ends capacitor C4, and the voltage at the 4th both ends capacitor C4 is greater than the The voltage of the positive terminal of four voltage comparator U4 makes the output end of the 4th voltage comparator U4 export low level.Due to the 4th electricity The charge and discharge for holding C4 cause PWM that the generation triangular wave of circuit 36 occurs, and triangular wave is input to the positive terminal of tertiary voltage comparator U3, The branch pressure voltage of twelfth resistor R12 and thirteenth resistor R13 are input to the reverse side of tertiary voltage comparator U3, specifically such as The voltage of the reverse side of tertiary voltage comparator U3 is 2.5V, and the triangular wave of the positive terminal of tertiary voltage comparator U3 input Voltage range is 0.31V~4.1V (as shown in figure 8d), passes through output pwm signal after tertiary voltage comparator U3 to the three or three pole Pipe Q3 makes the LED bay light to constant-current control circuit 31 by output pwm signal (as figure 8 e shows) after third transistor Q3 Flashing alarm.

Claims (10)

1. a kind of LED bay light that induction hydraulic pressure rinses, it is characterised in that: the LED bay light is designed to waterproof construction, and has One hydraulic pressure sensor, the hydraulic pressure for the water flow which perceives according to the hydraulic pressure sensor issue normal light or It flashes excessive with the hydraulic pressure of early warning water flow；

The LED bay light includes in the lamp body of horn-like structure, driving power, annular lamp panel, annular LED light source plate, translucent cover And the hydraulic pressure sensor, the hydraulic pressure sensor is by probe power and the biography being electrically connected with the probe power Sensor probe composition, the driving power and the probe power are installed in the inner cavity of the lamp body, described Probe power is not in contact with each other with the driving power, and the probe power is electrically connected with the driving power, institute The sensor probe stated is installed on the top on the central area of the translucent cover and exposing the translucent cover.

2. a kind of LED bay light that induction hydraulic pressure rinses according to claim 1, it is characterised in that: the driving electricity Source is electrically connected with power supply line, and the power supply line is set to the side at the slot end of the lamp body by waterproof connector waterproof On, the inner ring of the annular lamp panel is connected on the wide mouth end of the lamp body, and the inner ring of the annular lamp panel and institute The first sealing mechanism is provided between the wide mouth end for the lamp body stated, the annular LED light source plate is installed on the circular lamp On the inner bottom surface of disk, the neighboring of the translucent cover is connected on the top edge of the outer ring of the annular lamp panel, and It is provided with the second sealing mechanism between the neighboring of the translucent cover and the top edge of the outer ring of the annular lamp panel, The translucent cover covers in outside the annular LED light source plate, the central area of the translucent cover and the annular lamp panel Inner ring between be provided with third sealing mechanism.

3. a kind of LED bay light that induction hydraulic pressure rinses according to claim 2, it is characterised in that: the driving electricity Source is connected in the side of the inner cavity of the lamp body, and is encapsulated with casting glue, surrounds the driving power to be conducive to Heat dissipation, insulation and the fixation for the driving power stated；The probe power is fixed on the lamp body by fixed bracket The other side of inner cavity is separated between the probe power and the driving power by baffle；The translucent cover Central area is recessed concave surface, and the sensor probe is installed on the center of the concave surface and exposes described Concave surface；The top that the neighboring of the translucent cover passes through the outer ring of outer press ring and outer press ring screw and the annular lamp panel Edge is fixedly connected, and the concave surface is fixedly connected by inner pressure ring and inner pressure ring screw with the inner ring of the annular lamp panel.

4. a kind of LED bay light that induction hydraulic pressure rinses according to claim 2, it is characterised in that: the LED bay light is also Including for the LED bay light to be hung on the hook of the installation on ceiling, the installation hook is installed on the lamp body On slot end.

5. a kind of LED bay light that induction hydraulic pressure rinses according to any one of claim 2 to 4, it is characterised in that: institute The driving power stated is made of constant-current control circuit and voltage control circuit, the input terminal of the constant-current control circuit with it is described Power supply line connection access alternating current, the output end of the constant-current control circuit is connect with the annular LED light source plate, described The input terminal of voltage control circuit connect with the output end of the sensor probe, the output end of the sensor probe The voltage signal being converted by the hydraulic pressure of water flow is exported to the voltage control circuit, the output of the voltage control circuit End is connect with the constant-current control circuit.

6. a kind of LED bay light that induction hydraulic pressure rinses according to claim 5, it is characterised in that: the voltage control Circuit processed by voltage comparator circuit, voltage feedback loop, pwm control circuit, PWM occurs circuit and for for the voltage ratio The power supply circuit composition of operating voltage is provided compared with circuit, the voltage comparator circuit is defeated with the sensor probe respectively Outlet, the voltage feedback loop are connected with the pwm control circuit, and output end and the institute of circuit occur for the PWM The pwm control circuit connection stated, the output end of the pwm control circuit are connect with the constant-current control circuit；Described Voltage comparator circuit to the voltage signal of the output end of its initial threshold, that is, reference voltage and sensor probe output into Row compares, and exports comparison result to the pwm control circuit；The voltage feedback loop feedback voltage compares The comparison result of circuit is adjusted to reduce initial threshold the initial threshold of the voltage comparator circuit, makes described Voltage comparator circuit does not change in initial threshold and threshold range adjusted；The output of circuit occurs for the PWM End exports a triangular wave to the pwm control circuit, and the pwm control circuit compares triangular wave and reference voltage Compared with, and output pwm signal gives the constant-current control circuit, so that the LED bay light be made to flash.

7. a kind of LED bay light that induction hydraulic pressure rinses according to claim 6, it is characterised in that: the power supply electricity Road includes first resistor, second resistance, the first triode, zener diode, first capacitor and the second capacitor, first electricity One end of resistance is connected with 12V voltage, the other end of the first resistor collector with first triode respectively It is connected with one end of the second resistance, the base stage of first triode and the other end phase of the second resistance The cathode of zener diode described in Lian Houyu is connected, and the emitter of first triode is connected with 5V voltage, institute The emitter for the first triode stated is connected with one end of one end of the first capacitor and second capacitor respectively, The other end of positive, described first capacitor of the zener diode, second capacitor the other end be grounded, institute The emitter for the first triode stated, the first capacitor one end be connected with one end of second capacitor after it is public Connecting pin is connect as feeder ear with the voltage comparator circuit.

8. a kind of LED bay light that induction hydraulic pressure rinses according to claim 7, it is characterised in that: the voltage ratio It include 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth compared with circuit Resistance, eleventh resistor, third capacitor, the second triode, first voltage comparator, the voltage feedback loop include reversed Diode and second voltage comparator；The output end of the sensor probe respectively with one end of the 8th resistance, institute One end connection of the one end for the third capacitor stated, the 3rd resistor, the other end of the 8th resistance and described the The reverse side of one voltage comparator is connected, and one end of the 6th resistance is connected with the feeder ear of the power supply circuit Connect, the other end of the 6th resistance respectively with one end of the 4th resistance and the first voltage comparator just Phase end is connected, the other end of the 4th resistance respectively with one end of the 5th resistance and the 7th resistance One end is connected, the other end of the 5th resistance, the other end of the 3rd resistor, the third capacitor it is another End ground connection, the other end of the 7th resistance are connected with the anode of the backward dioded, the first voltage ratio Compared with the output end of device respectively with one end of the 9th resistance, one end of the tenth resistance and the second voltage ratio Positive terminal compared with device is connected, and the other end of the 9th resistance is connect with the power end of the first voltage comparator, The power end of the first voltage comparator is connected with the feeder ear of the power supply circuit, the tenth resistance it is another One end is connected with the base stage of one end of the eleventh resistor and second triode respectively, the 11st electricity The emitter ground connection of the other end of resistance, second triode, the collector of second triode and the PWM are controlled Circuit processed is connected, and the cathode of the backward dioded is connected with the output end of the second voltage comparator, described The negative phase end of second voltage comparator be connected with the output end of the sensor probe, the second voltage comparator Power end be connected with 5V voltage, the ground terminal of the first voltage comparator and the second voltage comparator connect Ground terminal ground connection.

9. a kind of LED bay light that induction hydraulic pressure rinses according to claim 8, it is characterised in that: the PWM control Circuit includes twelfth resistor, thirteenth resistor, the 14th resistance, third transistor and tertiary voltage comparator, and described The output end that with the voltage comparator circuit and the PWM circuit occurs for the positive terminal of three voltage comparators respectively is connected Connect, the negative phase end of the tertiary voltage comparator respectively with one end of the twelfth resistor and the thirteenth resistor One end be connected, the other end of the twelfth resistor is connected with the feeder ear of the power supply circuit, described The other ends of 13 resistance is grounded, the output end of tertiary voltage comparator one end with the 14th resistance respectively It is connected with the base stage of the third transistor, the other end of the 14th resistance and the tertiary voltage comparator Power end be connected, the power end of the tertiary voltage comparator is connected with 5V voltage, the third transistor The ground terminal ground connection of emitter, the tertiary voltage comparator, the collector of the third transistor is as the PWM The output end of control circuit is connected with the constant-current control circuit.

10. a kind of LED bay light that induction hydraulic pressure rinses according to claim 9, it is characterised in that: the PWM hair Raw circuit includes the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 4th capacitor and the Four voltage comparators, the positive terminal of the 4th voltage comparator respectively with one end of the 15th resistance, described One end of 16th resistance is connected with one end of the 17th resistance, the other end of the 15th resistance with it is described The output end of power supply circuit be connected, the negative phase end of the 4th voltage comparator respectively with the 4th capacitor one End is connected with one end of the 19th resistance, and the negative phase end of the 4th voltage comparator is sent out as the PWM The output end of raw circuit is connected with the pwm control circuit, the other end and the described the 16th of the 4th capacitor The other end of resistance is grounded, the output end of the 4th voltage comparator respectively with the other end of the 19th resistance, The other end of 17th resistance is connected with one end of the 18th resistance, the 18th resistance it is another End is connected with the other end of the 15th resistance, and the power end of the 4th voltage comparator is connected with 5V voltage It connects, the ground terminal ground connection of the 4th voltage comparator.