CN2326741Y

CN2326741Y - High-energy electronic ignitor of automobile engine for use in cold day

Info

Publication number: CN2326741Y
Application number: CN 98236467
Authority: CN
Inventors: 张影
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-14
Filing date: 1998-01-14
Publication date: 1999-06-30
Anticipated expiration: 2008-01-14

Abstract

The utility model discloses a high-energy electronic ignitor of an automobile engine for use in a cold day. The utility model is characterized in that both ends of the bottom surface of a casing body are respectively provided with an installing lug, and an installing hole is arranged on the installing lug. A switching pipe and an installing groove are arranged on the upper surface of the casing body, and the switching pipe is arranged in the installing groove. A lead wire is leaded to the upper part of a circuit board in an electrical apparatus element chamber by an over-wire hole. A plurality of radiating fins are arranged on the casing body in order to enlarge effective heat dispersing area and improve the work efficiency of the ignitor. A circuit board which is made of insulating heat-resisting material is arranged on the side surface of the casing body. An output 12V power source, a Hall power source and four wiring posts which are inputted by a timing pulse are arranged on the circuit board, and used for connecting with outer apparatuses. A label board 10 has two functions that one function of the label board is used as the label board, and the other function that the label board is used as the upper cover of the installing groove of a power pipe. A bottom cover 12 is used as the cover board of the most outer layer of the bottom part of the casing body.

Description

Motor car engine high energy cold day ignition

The utility model relates to motor car engine high energy cold day ignition.

In high development of social economy, today that science and technology is constantly progressive, people have had higher requirement to the performance index of automobile.Old-fashioned mechanical type ignition system does not more and more satisfy the performance of the raising motor that current society institute proposes and formulates, raising Economy and change the requirement of general blowdown.So must upgrade, transform old-fashioned engine igniting system, make it improve performance.

The purpose of this utility model just provides and makes motor at all increase a kind of motor car engine high energy cold day ignition of excellent performance of the performance of each side such as " cold day starting performance, performance driving economy improves disposal of pollutants, reduces rate of fault "

Above-mentioned purpose of the present utility model adopts following technological scheme to be achieved:

The utility model comprises housing, wire board and wiring terminal, is provided with the electrical apparatus element chamber in housing, at the indoor circuit board that is provided with of electrical apparatus element.

At two ends, housing bottom surface one mounting ear is arranged respectively, mounting hole is arranged on the mounting ear.Establish a switching tube mounting groove above the housing, switching tube is installed in the groove, and lead-in wire causes on the indoor circuit board of electrical apparatus element by cable-through hole.On main body, established the multiple tracks radiating fin,, improved the working efficiency of igniter to strengthen the efficiently radiates heat area.Wire board adopts the insulation heat-resistant material to manufacture, and is installed in the side of main body, on output, 12V power supply are housed, 4 wiring terminals are imported in Hall power supply and timing pulse, are used for being connected with extraneous device.Label has two kinds of effects, and one as label, the loam cake of dual-purpose rate of doing work pipe mounting groove.Bottom is the outermost surface cover plate of housing bottom.

Circuit structure principle of the present utility model is:

Input circlult is after the paraphase of triode BG1 base stage, one the tunnel through coupling capacitor C 1 and tacho-pulse detect and current"on"time control circuit IC1 6 pin link to each other, another road links to each other with 6 pin of IC2 in pulse shaping and the pulse number control circuit through coupling capacitor C 7, the IC1 internal circuit is divided into two parts, a part is removed the output pulse number circuit and control control circuit current"on"time of control point firearm for the detection of engine rotating speed, another part is control circuit current"on"time, the IC2 internal circuit is divided into two-part, a part is a control ignition time length circuit under IC1 control, another part is the pulse forming circuit that is subjected to the control of IC2 first portion, one power-off time control circuit one end of being made up of BG7-BG10 is by 5 of R23 and IC2,10 pin link to each other, and the other end links to each other with output-stage circuit by BG10.

Because the utility model has adopted the multiple pulse mode on circuit design, can in the engine start process, in a burning cycle, give in the cylinder continuous a plurality of ignition sparks are provided, improved ignition energy and extended firing time.Make motor car engine when running into severe cold weather, it is started more smoothly.

Simultaneously, the utility model has adopted the spark number control circuit by the engine speed automatic control on circuit.After engine startup operation, the firing pulse number reduces with the raising of rotating speed, and when engine speed reaches one regularly, firing pulse is limited on the suitable number.Make motor in any case in running, can both in each light-off period, obtain a plurality of ignition sparks, make the fuel oil-gas in the cylinder can be able to abundant burning, improved engine power performance simultaneously, reduced oil consumption relatively, improved exhaust gas discharging, improved whole Economy, reliability and adaptability are higher.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model left side pseudosection.

A kind of circuit structure schematic diagram that Fig. 3 selects for use for the utility model.

Below in conjunction with Fig. 1-3 and embodiment in detail the utility model is described in detail.

As Figure 1-3.

At two ends, housing bottom surface one mounting ear is arranged respectively, on the mounting ear 8 mounting hole is arranged.Establish a switching tube mounting groove 14 above the housing, switching tube 9 is installed in the groove 14, and lead-in wire causes on the circuit board 11 in the electrical apparatus element chamber 13 by cable-through hole 15.On housing, established the multiple tracks radiating fin,, improved the working efficiency of igniter to strengthen the efficiently radiates heat area.Wire board adopts the insulation heat-resistant material to manufacture, and is installed in the side of housing, on output, 12V power supply, Hall power supply and timing pulse be housed import 4 wiring terminals, be used for being connected with extraneous device.Label 10 has two kinds of effects, and one as label, the loam cake of dual-purpose rate of doing work pipe mounting groove.Bottom 12 is the outermost surface cover plate of housing bottom.

Circuit structure principle of the present utility model is:

Input circlult 3 is after the paraphase of triode BG1 base stage, one the tunnel through coupling capacitor C 1 and tacho-pulse detect and current"on"time control circuit 6 in 6 pin of IC1 link to each other, another road links to each other with 6 pin of IC2 in pulse shaping and the pulse number control circuit 4 through coupling capacitor C 7, the IC1 internal circuit is divided into two parts, a part is removed the output pulse number circuit and control control circuit current"on"time of control point firearm for the detection of engine rotating speed, another part is control circuit current"on"time, the IC2 internal circuit is two-part, a part is a control ignition time length circuit under IC1 control, another part is the pulse forming circuit that is subjected to the control of IC2 first portion, one power-off time control circuit 1 one ends of being made up of BG7-BG10 are by 5 of R23 and IC2,10 pin link to each other, and the other end links to each other with output-stage circuit 5 by BG10.

Imported through IN by the fire signal pulse that distributor is sent here, to the BG1 ground level, after the BG1 paraphase, the one tunnel delivers to 6 pin of IC1 through coupling capacitor C 1 through R1, and 6 pin of IC2 are delivered on another road through coupling capacitor C 7.The IC1 built-in function is divided into two-part, and a part is output pulse number circuit and control control circuit current"on"time that the detection of engine rotating speed removes the control point firearm, and another part is control circuit current"on"time, the current"on"time of control output stage.The IC2 built-in function also is divided into two-part, and a part is under the control of IC1, the length of control ignition time, and another part is the pulse forming circuit that is subjected to the control of IC2 first portion.After to stall, there is electric current to pass through for a long time for avoiding igniter and high-tension coil, be provided with a power-off time control circuit, form by BG7-G10 etc.

When 6 pin of IC1 have the rotational speed pulse signal input,, export the VDC that height changes at 5 pin of IC1 with the height of speed-frequency, one the tunnel removes to control 1.2 pin of IC2 through R11, BG3, BG4, with under different rotating speeds, change its time constant, go the control ignition time.11 pin of IC1 are delivered on another road of IC15 pin through D1, after finishing firing time, 5.10 pin of IC2 send a control impuls for 8 pin of IC1 through D2.C6, make time width of 9 pin output of IC1 be subjected to the voltage-controlled pulse square wave of IC1.5 pin, remove to control the ground level of BG5 through R7.D3, make it before next ignition timing pulse arrives, shorten the energising of primary current, power-off time control is when engine running, 5.10 pin by IC2 are given out a tacho-pulse, through R23, D7 to BG7 is when pulse comes then, BG7 is saturated, BG8 is saturated, and to capacitor C 14 chargings, capacitance voltage is raised to 6.2V to 6.2V very soon through BG8, through the ground level of R26 to BG9, the saturated BG10 of BG9 is saturated, and+12V is through BG10, and R21 provides operating voltage to output stage.To stall, BG7 does not have pulsed voltage arrival BG7 to end, BG8 ends, voltage on the C14 is very fast to be bled off through the b.e of R26 and BG9 knot, BG9 ends, and BG10 ends, and the output stage outage quits work, for improving this igniter working stability and antijamming capability, power circuit 2 has adopted high-precision electronic voltage regulator.

Claims

1. motor car engine high energy cold day ignition, comprise housing, wire board and wiring terminal, in housing, be provided with the electrical apparatus element chamber, at the indoor circuit board that is provided with of electrical apparatus element, it is characterized in that: one mounting ear is respectively arranged at two ends, housing bottom surface, mounting hole is arranged on the mounting ear, establish a switching tube mounting groove above the housing, switching tube is installed in the groove, lead-in wire causes on the indoor circuit board of electrical apparatus element by cable-through hole, established the multiple tracks radiating fin on main body, wire board is installed in the side of housing, on output is housed, the 12V power supply, Hall power supply and 4 wiring terminals of timing pulse input, be used for being connected with extraneous device, the loam cake of label double as power tube mounting groove, bottom are the outermost surface cover plate of housing bottom.

2. motor car engine high energy cold day ignition according to claim 1, it is characterized in that: described ignitor circuit plate structure is: input circlult is after the paraphase of triode BG1 base stage, one the tunnel detects and 6 pin of power-on circuit IC1 link to each other through coupling capacitor C 1 and tacho-pulse, another road links to each other with 6 pin of IC2 in pulse shaping and the pulse number control circuit through coupling capacitor C 7, the IC1 internal circuit is divided into two parts, a part is removed the output pulse number circuit and control control circuit current"on"time of control point firearm for the detection of engine rotating speed, another part is control circuit current"on"time, the IC2 internal circuit is two-part, a part is control ignition time length circuit under IC1 control, another part is the pulse forming circuit that is subjected to the control of IC2 first portion, one power-off time control circuit one end of being made up of BG7-BG10 is by 5 of R23 and IC2,10 pin link to each other, and the other end links to each other with output-stage circuit by BG10.