CN2252243Y

CN2252243Y - Steam engine high-pressure ignition conducting wire

Info

Publication number: CN2252243Y
Application number: CN 95205352
Authority: CN
Inventors: 戴财丁
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-03
Filing date: 1995-08-03
Publication date: 1997-04-16
Anticipated expiration: 2005-08-03

Abstract

The utility model relates to a high-pressure ignition conducting wire for a steam engine, which is mainly in the type of a high-pressure coaxial cable; central conductive bodies in the coaxial cable are respectively connected between a distributor for an automobile and a cigar lighter of an engine; double current conducting braid layers are wound outside the conductive bodies; interference clutter emitted by the central conductive bodies can be grounded and shielded by the braid layers; a clutter elimination device is connected between two cable segments of the coaxial cable; the clutter elimination device is provided with a high-pressure rectifying diode and a clutter filter connected between two cable segments; the rectification with high-pressure ignition is a wave with a single direction. The utility model can effectively reduce the clutter with the negative half-wave generated by the shrink of the magnetic field of the high-pressure ignition coil and eliminate or decrease the interference of the clutter with high-pressure ignition.

Description

A kind of steam turbine overall height pressure point fire lead

The utility model relates to a kind of high voltage ignition lead that is used in the spark plug of vehicle.

Use the various vehicles of engine now as power, its high pressure that all need see through ignition coil (high-tension coil) generation is with the spark plug igniting of order position at engine position, reach engine is run well, so on using, reality but produces some interference problems in these high voltage ignition modes, that is automobile is in required high pressure (the about 20,000 volts) process of transmission igniting, see through spark plug and produce electrical discharge arc, and then the High-frequency Interference (electromagnetic wave noise) of generation what is called, wireless citation system or electronic equipment thereby generation are disturbed arround causing; Very and, because the electronics control system that is equipped with is very complicated, accurate in the modern senior vehicle,, cause the misoperation of electronic control system or malfunctioning easily, thereby cause the generation of traffic accident accident for external noise interference.

In the noise that automobile produced is confined to more usually,, only need to seek to disturb countermeasure to get final product to the car audio that is installed in the car for medium wave broadcast.But the above reception that high-frequency range caused of VHF frequency band is disturbed and can be reached distance very far away.It is the spark (pulsating current) of spark plug that the maximum of automobile noise produces the source, ignition system is by spark coil, distributing disk, spark plug and high-voltage connection etc. constitute, make the discharge of spark plug flashing by the high-tension electricity that spark coil produced, make engine ignition again and produce power, in order to overcome the shortcoming that automobile noise that the spark plug spark produces is caused, the high voltage ignition lead system of commonly using utilizes resistance string to be connected in the harness, to suppress the induction discharge noise that high-voltage ignition coil was produced, though yet series resistor can be eliminated the interference signal that part high periodic wave vibration electric current is produced, but also because the relation of resistance causes the reduction of high voltage ignition energy, also reduced the shaft horsepower of engine virtually, and discharging waste gas (CO, HC) also can't reduce to certain standard, so must be again through Catalytic Converter, it is minimum that its pollution sources are reduced to.Automobile high-voltage electricity live wire road is induction discharge (Arc Discharge) as another, and when electric ignition circuit was closed, high-tension coil can form a back-emf voltage (as Fig. 7), and wherein primary current is bigger, and the secondary voltage of induction is higher.

The purpose of this utility model is to provide a kind of steam turbine overall height pressure point fire lead of eliminating the high voltage ignition noise.

The utility model is to realize like this, this product mainly is a kind of high-pressure coaxial cable pattern, establishing central conductor in it is connected between automobile distributing disk and the engine spark plug, conductor holds outward with double-deck conductive braid, and this braid gives ground connection in order to do the jamming incoherent signal that central conductor is sent ground connection and give shielding in addition; Another noise cancellation element system is connected with between two cable section of this concentric cable, it is provided with a high-voltage rectifying diode and a noise wave filter is connected between two cable segments, so that the rectification of high-tension electricity fire is single direction wave, liter becomes smoothing with falling edge on half-wave noise and the harness HT waveform to shrink bearing of being produced with minimizing high-voltage ignition coil magnetic field, to suppress the high frequency spectrum energy, in order to do eliminating or reduce jamming incoherent signal; The both sides of concentric cable are respectively equipped with first joint and second joint, and wherein first joint system is connected in one of this concentric cable end, in order to be connected with distributing disk, are connected with spark plug on the engine as for second joint then is connected in the end in addition of cable; This concentric cable system includes first cable section and second cable section, and wherein first cable section is connected with between first joint and noise cancellation element, and second cable section then is connected with between the noise cancellation element and second joint; Include a central conductor in each cable section, it can be materials such as copper (single core or multicore), carbon or graphite, with the transmission high voltage; Outside central conductor, then be surrounded with first conductive braid and second conductive braid, wherein, first conductive braid can be copper mesh, uses the noise disturbing wave of shielding from central conductor, then is paperwrapped in outside this first conductive braid as for second conductive braid; Secondly, be provided with an isolation layer in addition in the central conductor and the first conductive braided fabric interlayer, and this first and second conductive braided fabric interlayer is also every being provided with an isolation layer; Moreover a ground connection holder then is held on this second conductive braid, for the ground connection release current.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the External view of the utility model.

Fig. 2 is the structure sectional view of the utility model.

Fig. 3 is the drawing in side sectional elevation of Fig. 2 concentric cable.

Fig. 4 is the linkage structure exploded view of the utility model and spark plug.

Fig. 5 is the application circuit schematic representation of the most concentric cable of the utility model.

Fig. 6 shrinks the electric current and the voltage relationship figure that are produced negative half-wave noise by single direction wave to reduce high-voltage ignition coil magnetic field with the rectification of high-tension electricity ignition circuit for the utility model high-voltage rectifying diode.

The back-emf voltage figure that Fig. 7 is formed by general automobile high-voltage electricity live wire road.

Shown in each accompanying drawing, the utility model comprises that mainly a concentric cable (1), a noise cancellation element (2), first joint (3) and second joint (4) constitute; Wherein first joint system is connected in one of this concentric cable (1) end, in order to being connected with the distributing disk (5) of vehicle, then is connected in the end in addition of cable (1) as for second joint (4), and with the last spark plug (6) be connected [shown in the dotted line of Fig. 2] of engine (7).

Secondly, Figure 1 and Figure 2 and for example, the utility model concentric cable (1) is to comprise by first cable section (1a) being connected with between first joint (3) and noise cancellation element (2), and second cable section (1b) is connected with between noise cancellation element (2) and second joint (4); Include a central conductor (11) in each cable section (1a), (1b), it can be materials such as copper [single core or multicore], carbon or graphite, with the transmission high voltage, outside central conductor (11), then be surrounded with first conductive braid (12) and second conductive braid (13), wherein, first conductive braid (13) can be copper mesh, uses the noise disturbing wave of shielding from central conductor (11), then is paperwrapped in this first conductive braid (12) epigenesist as for second conductive braid (13); Secondly, between central conductor (11) and first conductive braid (12), be provided with an isolation layer (111) in addition, and between this first and second conductive braid (12), (13) also every being provided with an isolation layer (121), use its insulating properties of raising; Moreover a ground connection holder (G) then is held on second conductive braid (13), for the ground connection release current.

Certainly, above-mentioned second conductive braid (13) appearance, also can add in addition coating with other as mould, coating layer such as rubber, using increases its insulation characterisitic, but if when being added with this coating type outsourcing material, not hinder touching of this second conductive braid (13) and ground connection holder (G) or other earthed system.

Other cooperates shown in Figure 3, and respectively the nexine of this conductive braid (12), (13) can be a metal foil (120), (130) [as aluminium foil] in addition, is paperwrapped in this each braid (12), (13) interior core in advance.

Secondly, the main system of this first joint (3) is by electrode or the contact (51) of a contactor (31) with connection distributor head (52), and other is with the input end of a latch (32) with the company's of inserting first cable section (1a).

Moreover, the then main system of this noise cancellation element (2) comprises that an electric insulation cover (21) is socketed on first, second cable section (1a), (1b), use the high pressure positive and negative electrode of separating in this noise cancellation element (2) [earth electrode], to prevent sparkover, one noise wave filter (L), it is connected in two side-connectors (24), (26) between, each connector (24), (26) the difference mat one prominent tip (241), (261) company's of inserting each cable section (1a), central conductor (1b) (11) and form conduction and connect, an and ground connection coupling piece (27), it is coupled to two cable section (1a), conductive braid (1b) (13), think ground connection holder (G) institute ground connection, this ground connection coupling piece (27) is paperwrapped in outside this electric insulation cover (21) external diameter; In addition, certainly, this insulating bush (21) also can add and covers insulation coating [as the insulation silastic etc.], and this is not limited in the utility model.

Secondly, this ground connection coupling piece (27) but in addition outsourcing with a conductive braid (27a) to be connected with second conductive braid (13) of two cable section (1a), (1b), use further shielding and be positioned at the jamming incoherent signal that noise cancellation element (2) position [that is intersection of two cable section (1a), (1b)] may be produced.

This wave filter (L) refers to a kind of noise wave filter (L), the special role that it has effective removing or reduces noise, and so this wave filter (L) is a known product, does not therefore add discussion in the utility model in addition.

Structure part as for relevant the utility model second joint (4), please further referring to shown in Figure 4, this second joint (4) is to comprise a cable connector (41), in order to tighten, to connect one of this cable (1) side cable section (1b), one spark plug connector (42), then linking to each other with this cable connector (41) is conducted and makes in order to do the contre electrode (61) of the central conductor that makes concentric cable (1) (11) and this spark plug and produce spark plug (6) igniting to be socketed on spark plug (6).

This spark plug connector (42) is made by electro insulating material, but be inserted in a conduction (43) in the connector (42) and holding the spark plug contre electrode (61) that inserts in this connector (42), one elbow member (44) then is made by the conduction material, it includes the first folder portion (441) and connects second conductive braid (13) of this cable and the neck (431) that the second folder portion (442) folder connects this conductive drum (43) with bundle, is to be electrical communication with this second conductive braid (13) with ground connection holder (G) as for elbow member (44), can use ground connection and eliminate noise; One central electric-conducting stem (46), on connect the central conductor (11) of this cable, and under connect an electrode hood (461) inserts this spark plug connector (42) and this cylinder (43) central authorities with socket spark plug electrode (61), in order to do high pressure positive electricity being imported the usefulness of spark plug (6) for engine ignition, in addition, central authorities' electric-conducting stems (46) are to penetrate among the electric insulation sleeve pipe (45) in the hole (451), sleeve pipe (45) then is neck (431) the institute collar of this cylinder (43), by being suspended, fix this spark plug electrode (61) among spark plug connector (42), and hold the cylinder (43) of this spark plug electrode (61), by elbow member (44) electrical communication in this second conductive braid (13), ground connection holder (G) is used the noise ground connection of leaking is removed.

Because high-impedance filter (L) and high-voltage rectifying diode (R) in the utility model in this noise cancellation element (2) are serially connected with between two cable section (1a), (1b) central conductor (11), when being delivered to noise cancellation element (2) by distributing disk (5) to high voltage (the about 20,000 volts) electric current of spark plug (6), this electric light circuit is through high-voltage rectifying diode (R), with the rectification of high-tension electricity ignition circuit is that single direction wave shrinks the negative half-wave noise [consulting shown in Figure 6] that is produced to reduce high-voltage ignition coil magnetic field, and wherein this time half-wave is dammed to fall; HR high resistance by wave filter (L) when this high voltage and current is delivered to wave filter (L) is again hindered, but this wave filter (L) gradually can charge, the delay in a duration of charge by this, the rising edge smoothing of its waveform in the time of can making high-voltage pulse reach its peak magnitude of voltage, so can suppress the high frequency spectrum energy of rising edge, and eliminated or reduced jamming incoherent signal.And disappear when the high pressure of input end, that is when stopping to light a fire, the remaining time that charge consumption continued also can make the smoothing that becomes of the falling edge of HT waveform in wave filter (L) coil, and reduces the high frequency spectrum energy, so can reduce the noise interference.The utility model cooperates double braid layer (12), the shielding of (13), ground connection again, thus can eliminate high-frequency electric wave [electromagnetic wave] interference that high-voltage conducting wires is launched, and electronic equipment is interference-free arround guaranteeing, and promote traffic safety.

At last, as shown in Figure 5, the utility model also can be more than the distributor head (52) of distributing disk (5) number contact (51) mat several concentric cable of electricity (1) be connected in parallel to most spark plugs (6) in order to do (A, B, C, D) transferring high voltage electric current successively to each spark plug (6) to light all engines.Be connected to distributing disk (5) split fire head again and also can be connected with a concentric cable (1) that contains noise cancellation element (2).

So eliminating circuit with these high pressure noises of the utility model is single direction wave through the high-voltage rectifying diode with the rectification of high-tension electricity ignition circuit, shrink the negative half-wave noise that is produced to reduce high-voltage ignition coil magnetic field, again by the isolations mesh grid that suitably suppresses high frequency signal energy and see through the electric wire skin to absorb the frequency electromagnetic waves of outside emission, form a low fiery wire configurations of steam turbine overall height pressure point of disturbing.

Claims

1. steam turbine overall height pressure point fire lead, it is characterized in that it mainly is a kind of high-pressure coaxial cable pattern, establishing central conductor in it is connected between automobile distributing disk and the engine spark plug, conductor holds outward with double-deck conductive braid, and this braid gives ground connection in order to do the jamming incoherent signal that central conductor is sent ground connection and give shielding in addition; Another noise cancellation element system is connected with between two cable section of this concentric cable, and it is provided with a high-voltage rectifying diode and a noise wave filter is connected between two cable segments; The both sides of concentric cable are respectively equipped with first joint and second joint, and wherein first joint system is connected in one of this concentric cable end, in order to be connected with distributing disk, then to be connected in the end in addition of cable as for second joint, and to be connected with spark plug on the engine; This concentric cable system includes first cable section and second cable section, and wherein first cable section is connected with between first joint and noise cancellation element, and second cable section then is connected with between the noise cancellation element and second joint; Include a central conductor in each cable section, then be surrounded with first conductive braid and second conductive braid outside central conductor, wherein, first conductive braid can be copper mesh, and second conductive braid then is paperwrapped in outside this first conductive braid; Secondly, be provided with an isolation layer in addition in the central conductor and the first conductive braided fabric interlayer, and this first and second conductive braided fabric interlayer is also every being provided with an isolation layer; Moreover a ground connection holder then is held on this second conductive braid.

2. steam turbine overall height pressure point according to claim 1 fire lead is characterized in that showing outside second conductive braid, also can add in addition coating with other as mould, coating layer such as rubber.

3. steam turbine overall height pressure point according to claim 1 fire lead is characterized in that the nexine of two conductive braid, in addition can a metal foil, be paperwrapped in the interior core of this each braid in advance.

4. steam turbine overall height pressure point fire lead according to claim 1 is characterized in that first joint mainly is by electrode or the contact of a contactor with the connection distributor head, and in addition with the input end of a latch with the company's of inserting first cable section.

5. steam turbine overall height pressure point fire lead according to claim 1, it is characterized in that the noise cancellation element mainly is to comprise that an electric insulation cover is socketed between first, second cable section, one noise wave filter, between two side-connectors, each connector mat one prominent tip is respectively inserted the central conductor that connects each cable section and is formed the conduction connection in succession for it; And a ground connection coupling piece, it is coupled to second conductive braid of two cable section, thinks ground connection holder institute ground connection; This ground connection coupling piece is paperwrapped in outside this electric insulation cover external diameter, in addition, also can add outside this insulating bush and cover insulation coating; In addition, but this ground connection coupling piece in addition outsourcing with a conductive braid to be connected with second conductive braid of two cable section.

6. steam turbine overall height pressure point fire lead according to claim 1, it is characterized in that second joint system comprises a cable connector, in order to tighten, to connect one of this cable side cable section, one spark plug connector, then linking to each other with this cable connector is conducted in order to do the contre electrode of the central conductor that makes concentric cable and this spark plug to be socketed on spark plug; This spark plug connector family is made by electro insulating material, but be inserted in a conductive drum in the connector and holding the spark plug contre electrode that inserts in this connector, one elbow member then is made by the conduction material, it includes the neck that the first folder portion connects this cable with bundle second conductive braid and second folder portion folder connect this conductive drum, knits layer and the ground connection holder is to be electrical communication as for elbow member and this second conduction; One central electric-conducting stem, on connect the central conductor of this cable, and under connect an electrode hood inserts this spark plug connector and this cylindrical center with socket spark plug electrode; In addition, central authorities conductions leverage penetrates among the electric insulation sleeve pipe in the hole, sleeve pipe then is the neck institute collar of this cylinder, by being suspended, fix this spark plug electrode among the spark plug connector, and hold the cylinder of this spark plug electrode, by elbow member electrical communication in this second conductive braid, ground connection holder.

7. steam turbine overall height pressure point fire lead according to claim 1, it is characterized in that concentric cable also can from the distributor head of distributing disk be connected in parallel to most spark plugs with most contacts, be connected to the distributing disk split fire head again and also can be connected with a concentric cable that contains the noise cancellation element.