CN203748047U - Wide-voltage flasher for 24V engineering truck - Google Patents
Wide-voltage flasher for 24V engineering truck Download PDFInfo
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- CN203748047U CN203748047U CN201320599794.9U CN201320599794U CN203748047U CN 203748047 U CN203748047 U CN 203748047U CN 201320599794 U CN201320599794 U CN 201320599794U CN 203748047 U CN203748047 U CN 203748047U
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Abstract
The utility model discloses a wide-voltage flasher for a 24V engineering truck, and the flasher comprises an application-specific integrated circuit, an oscillating circuit, a sampling circuit, a switching amplification circuit, a voltage-stabilizing circuit, and a voltage-dividing circuit. The voltage-stabilizing circuit is connected with the application-specific integrated circuit and the voltage-dividing circuit. The voltage-dividing circuit is connected with the negative electrode of a power supply. According to the utility model, a mode of adding the voltage-stabilizing circuit and the voltage-dividing circuit is employed, thereby effectively solving a problem of faults caused by the wider scope range of the fluctuation of voltage of the 24V engineering truck, better prolonging the service life of a product, and improving the quality and stability of the product.
Description
Technical field
The utility model relates to engineering truck flashing relay technical field, relates in particular to a kind of 24V engineering overall width voltage flasher.
Background technology
Existing engineering truck flashing relay operating voltage range is generally at (20～30) V.Major technique is to adopt three kinds of schemes to realize: a kind of is directly to use LC oscillating circuit, the electronic flash that adopts the triode mode of cut-offfing to realize; Another scheme is to adopt automobile specified integrated circuit and peripheral circuit to realize electronic flash; The operating voltage of these two kinds of design products is all narrow, when supply voltage is too high, can cause product to occur in normal fault bright or that burn out internal circuit; When supply voltage is too low, interiors of products PCB relay does not reach attracting state, causes product not worked.In addition, directly adopt LC oscillating circuit to realize the flashing relay of flash of light, operating frequency range error ratio is larger, and product antijamming capability is also inadequate.The third scheme is to adopt mcu programming, carries out data processing, and direction indicator lamp signal, danger alarm signal and the malfunctioning faulty indication of lamp are controlled in output, realizes flash of light.This scheme can solve the problems of the technologies described above, but this design generation expense is higher, and user is difficult for accepting.So in the situation that guaranteeing that product expense does not increase, guaranteeing that operating voltage is wider also can meet automobile-used requirement, if single employing integrated circuit is realized electronic flash, more ripe integrated chip as domestic and international in 24V integrated circuit LT4761, L9686, LZ2024, U643B and VG2043 etc. and chip periphery circuit are to realize wide voltage, because of flash of light integrated circuit operating voltage range: 8V-18V; If guarantee product when high pressure product not in Chang Liang, be not burned in the situation that, product will cause the idle possibility of product when low-voltage so, if guaranteeing product can normally work when low-voltage, when high pressure, product will cause the possible of Chang Liang so, so two kinds of failure conditions connect each other, mutually repel.
Utility model content
The utility model is mainly the technical problem that solves the flasher fault next compared with broadband of existing operating voltage fluctuation range in prior art, thereby provide a kind of, can meet the wider 24V engineering overall width voltage flasher of operating voltage range.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
24V engineering overall width voltage flasher of the present utility model, comprise application-specific integrated circuit (ASIC), oscillating circuit, sample circuit, switch amplifying circuit, also comprise voltage stabilizing circuit and bleeder circuit, described voltage stabilizing circuit is connected with application-specific integrated circuit (ASIC), bleeder circuit, and described bleeder circuit is also connected with power cathode.
Further, described bleeder circuit also comprises first, second diode parallel with one another being connected between one the 4th resistance and power cathode.
Further, also comprise anti-jamming circuit and filter circuit, described anti-jamming circuit is connected with power cathode with positive source respectively with filter circuit.
Further, described anti-jamming circuit comprises second, third electric capacity, described second, third electric capacity is parallel with one another and be connected with described positive source, power cathode respectively, described filter circuit comprises the first, the 4th electric capacity, and described the first, the 4th electric capacity is parallel with one another and be connected with described positive source, power cathode respectively.
Further, described power cathode comprises first, second power cathode, one end of described first, second electric capacity is connected with the first power cathode, one end described the 3rd, the 4th electric capacity is connected with second source negative pole, and one end of described the 4th resistance is connected with second source negative pole with the first power cathode with the second diode through described the first diode respectively.
Compared with prior art; the utility model has the advantage of: adopt the mode that increases voltage stabilizing circuit, bleeder circuit; effectively solved 24V engineering truck because of the operating voltage fluctuation range failure problems next compared with broadband; make product because operating voltage is excessive, not burn product; because operating voltage is too low, do not make the product cannot normal starting; protect better product useful life, improved product quality and product stability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory diagram of 24V engineering overall width voltage flasher of the present utility model;
Fig. 2 is the circuit diagram of 24V engineering overall width voltage flasher of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection range of the present utility model is made to more explicit defining.
Consult shown in Fig. 1-2, the 24V engineering overall width voltage flasher that the utility model provides, comprise application-specific integrated circuit (ASIC), oscillating circuit, sample circuit, switch amplifying circuit, also comprise voltage stabilizing circuit and bleeder circuit, voltage stabilizing circuit is connected with application-specific integrated circuit (ASIC), bleeder circuit, and bleeder circuit is also connected with power cathode.Wherein, power cathode comprises first, second power cathode (2,3), switch amplifying circuit is controlled the first load 4 and the second load 5 by first, second electromagnetic relay (K1, K2), and first, second load (4,5) is the lamp load of left and right flasher.
Concrete, voltage stabilizing circuit comprises voltage stabilizing didoe VD1, the anode of this voltage stabilizing didoe VD1 is connected with the 2nd pin with the 1st pin of chip U respectively with negative electrode.Bleeder circuit comprises that the 4th resistance R 4, the four resistance R 4 are connected with the 1st pin, the power cathode of chip U.Preferably, bleeder circuit also comprises first, second diode parallel with one another (D3, D4) being connected between the 4th resistance R 4 and power cathode.One end of the 4th resistance R 4 is connected with second source negative pole 3 with the first power cathode 2 with the second diode D4 through the first diode D3 respectively.Meanwhile, this flasher also comprises anti-jamming circuit and filter circuit, and anti-jamming circuit is connected with power cathode with positive source 1 respectively with filter circuit.Anti-jamming circuit comprises second, third electric capacity (C2, C3), and this second, third electric capacity (C2, C3) is parallel with one another and be connected with positive source 1, power cathode respectively.Filter circuit comprises the first, the 4th electric capacity (C1, C4), and the first, the 4th electric capacity (C1, C4) is parallel with one another and be connected with positive source 1, power cathode respectively.Wherein, one end of first, second electric capacity (C1, C2) is connected with the first power cathode 2, three, one end of the 4th electric capacity (C3, C4) is connected with second source negative pole 3, the first, the 4th electric capacity (C1, C4) is leaded multilayer ceramic capacitor, and second, third electric capacity (C2, C3) is electrochemical capacitor.
Below in conjunction with the operation principle of 24V engineering overall width voltage flasher, the utility model is further introduced:
While stamping a left side (right side) switch in driving process, now left (right side) lamp load by ground signalling the enabling signal of the 8th pin to chip U, chip U is inner through comparing amplifying circuit, pass through (the charging of peripheral oscillating circuit simultaneously, electric discharge) after, the 3rd pin output of chip U is first exported high level to the base stage of the first triode V1 (the second triode V2), make the first triode V1 (the second triode V2) in complete conducting, and then make the first electromagnetic relay K1 coil (the second electromagnetic relay K2 coil) form loop state, relay work, moving point and the dead point of the first electromagnetic relay K1 coil (the second electromagnetic relay K2 coil) are connected, be that (positive source 1 and the second load 5 are connected) connected in positive source 1 and the first load 4, now oscillating circuit is carried out the process of charging half period and electric discharge half period, this process flasher lamp is in bright process, otherwise, flasher lamp does not work.
In the utility model, the low-frequency pulse bringing by anti-jamming circuit absorbing products outside, and the high-frequency pulse signal that brings of filter circuit absorbing products outside, solve also antijamming capability and the filter capacity of optimizing product, and voltage stabilizing circuit is set, guarantee that integrated chip U is not subject to surge voltage and pulse voltage and punctures integrated chip U and make product failure.
In addition, guarantee not because high voltage makes product impaired, when power supply is in high voltage situation, voltage after integrated chip U voltage stabilizing is divided on the 4th resistance R 4, be not that divided voltage is more high better, voltage divide get excessive, can cause product when integrated chip U output LOW voltage, also can make first, the second electromagnetic relay (K1, K2) adhesive, be that product is in Chang Liang, because requiring product when the 16V voltage, can normally work, for this reason first, the second electromagnetic relay (K1, K2) adhesive, release voltage also requires (24V relay adhesive 14V (Max) to some extent, release voltage 2.2V (Min)).Can guarantee that like this high voltage does not burn product, also can guarantee that product can normally be worked under low-voltage.
In sum, the utility model has the advantage of:
1, there is very wide operating voltage range: V brings up to (16～32) V from original operating voltage (20～30), product work voltage range is widened, solved existing flasher and because operating voltage is excessive, burnt product, the too low and difficult problem that product cannot normally be started of operating voltage.
2, can require when producing to adjust by chip and circuit design and inner parameter according to user, meet the demand of different automobile types.
3, increase voltage stabilizing circuit, anti-jamming circuit, filter circuit, bleeder circuit, effectively widened product work voltage range and antijamming capability, improved reliability, the safety and stability of product.
Above, be only embodiment of the present utility model, but protection range of the present utility model is not limited to this, any variation of expecting without creative work or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (5)
1. a 24V engineering overall width voltage flasher, comprise application-specific integrated circuit (ASIC), oscillating circuit, sample circuit, switch amplifying circuit, it is characterized in that: also comprise voltage stabilizing circuit and bleeder circuit, described voltage stabilizing circuit is connected with application-specific integrated circuit (ASIC), bleeder circuit, and described bleeder circuit is also connected with power cathode.
2. 24V engineering overall width voltage flasher according to claim 1, is characterized in that: described bleeder circuit also comprises first, second diode parallel with one another (D3, D4) being connected between one the 4th resistance (R4) and power cathode.
3. 24V engineering overall width voltage flasher according to claim 1, is characterized in that: also comprise anti-jamming circuit and filter circuit, described anti-jamming circuit is connected with power cathode with positive source (1) respectively with filter circuit.
4. 24V engineering overall width voltage flasher according to claim 3, it is characterized in that: described anti-jamming circuit comprises second, third electric capacity (C2, C3), described second, third electric capacity (C2, C3) is parallel with one another and be connected with described positive source (1), power cathode respectively, described filter circuit comprises the first, the 4th electric capacity (C1, C4), and described the first, the 4th electric capacity (C1, C4) is parallel with one another and be connected with described positive source (1), power cathode respectively.
5. 24V engineering overall width voltage flasher according to claim 4, it is characterized in that: described power cathode comprises first, second power cathode (2,3), one end of described first, second electric capacity (C1, C2) is connected with the first power cathode (2), one end of described the 3rd, the 4th electric capacity (C3, C4) is connected with second source negative pole (3), and one end of described the 4th resistance (R4) is connected with second source negative pole (3) with the first power cathode (2) with the second diode (D4) through described the first diode (D3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599794.9U CN203748047U (en) | 2013-09-26 | 2013-09-26 | Wide-voltage flasher for 24V engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599794.9U CN203748047U (en) | 2013-09-26 | 2013-09-26 | Wide-voltage flasher for 24V engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203748047U true CN203748047U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320599794.9U Expired - Fee Related CN203748047U (en) | 2013-09-26 | 2013-09-26 | Wide-voltage flasher for 24V engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203748047U (en) |
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2013
- 2013-09-26 CN CN201320599794.9U patent/CN203748047U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170926 |