阅读说明：本技术 带回馈信号的汽车点火线圈 (Automobile ignition coil with feedback signal ) 是由 戴斌裕 于 2021-08-10 设计创作，主要内容包括：本发明涉及汽车技术领域,具体涉及一种带回馈信号的汽车点火线圈,包括点火线圈连接部和安装在点火线圈连接部上的点火线圈绕线组主体,还包括电压传感器、防护部以及盖体,点火线圈连接部包括护套以及设置在护套一端的圆托体；本发明通过设置电压传感器,从而实时监控点火线圈绕线组主体的自感电压,并将自感电压回馈至ECU,将回馈的信息进行处理,并当检测有自感电压,则ECU显示并提示车主点火线圈出现问题,需要进行维修跟换,进而避免继续点火造成出现火花塞不能跳火或火花塞的点火不足以完全击穿点燃混合气体以及容易在断电器触点间形成强烈火花的问题。(The invention relates to the technical field of automobiles, in particular to an automobile ignition coil with a feedback signal, which comprises an ignition coil connecting part, an ignition coil winding group main body arranged on the ignition coil connecting part, a voltage sensor, a protective part and a cover body, wherein the ignition coil connecting part comprises a sheath and a circular support body arranged at one end of the sheath; the voltage sensor is arranged, so that the self-induction voltage of the winding set main body of the ignition coil is monitored in real time, the self-induction voltage is fed back to the ECU, the fed-back information is processed, when the self-induction voltage is detected, the ECU displays and prompts a vehicle owner that the ignition coil has problems, maintenance and replacement are needed, and the problems that a spark plug cannot jump fire or the ignition of the spark plug is insufficient to completely break down and ignite mixed gas and strong sparks are easily formed between contacts of a circuit breaker due to continuous ignition are avoided.)

1. The utility model provides a take automobile ignition coil of repayment signal, includes ignition coil connecting portion (1) and installs ignition coil wire winding group main part (2) on ignition coil connecting portion (1), its characterized in that: also comprises a voltage sensor (3), a protective part (4) and a cover body (5), the ignition coil connecting part (1) comprises a sheath (101) and a circular support body (102) arranged at one end of the sheath (101), the voltage sensor (3) is arranged on the circular support body (102), sleeved outside the ignition coil winding group main body (2) and used for detecting the voltage of the ignition coil winding group main body (2), the protection part (4) is arranged on the point round support body (102) and is used for protecting the ignition coil winding group main body (2) and the voltage sensor (3), the cover body (5) is rotatably arranged on the protective part (4), the cover body (5) is fixedly connected with the circular support body (102), and the cover body (5) is used for protecting the ignition coil winding group main body (2) and the voltage sensor (3) and is used for limiting and fixing the ignition coil winding group main body (2) and the voltage sensor (3).

2. The automotive ignition coil with the feedback signal according to claim 1, wherein the side wall of the circumference of the circular support body (102) and the side far away from the sheath (101) are vertically provided with a conductive part (103), the side of the conductive part (103) far away from the circular support body (102) is obliquely provided with a plug-in connector (104), one side of the conductive part (103) far away from the plug-in connector (104) is provided with an electrical socket set (105) electrically connected with the plug-in connector (104), the axis of the circular support body (102) is provided with a through hole communicated with the sheath (101), one side of the circular support body (102) far away from the sheath (101) is provided with a stepped groove (106) for clamping the ignition coil winding set main body (2), the ignition coil winding set main body (2) is electrically connected with the electrical socket set (105) through a wire set (201), one side of the circular support body (102) far away from the sheath (101) is further symmetrically provided with a wire groove (107) communicated with the through hole, the lead groove (107) close to one side of the conductive part (103) points to the electric socket group (105) and one end of the lead groove close to the electric socket group (105) is arranged to be in a conical structure, and the intersection of the stepped groove (106) and the lead groove (107) is provided with a guide opening.

3. The ignition coil with feedback signal for the vehicle as claimed in claim 2, wherein the voltage sensor (3) is electrically connected to the electrical socket set (105) via an electrical plug (301).

4. The ignition coil with the feedback signal for the automobile as claimed in claim 2, wherein the protection portion (4) comprises a sheath body (402) having a gap (401) and a limiting ring body (403) disposed at one end of the sheath body (402), the gap (401) is matched with the conductive portion (103), the inner diameter of the sheath body (402) is equal to the diameter of the bracket body (102), the sheath body (402) is sleeved outside the bracket body (102), the inner diameter of the limiting ring body (403) is smaller than the diameter of the bracket body (102), and the limiting ring body (403) is in abutting contact with one side of the bracket body (102) close to the sheath (101).

5. The ignition coil with the feedback signal for the automobile as claimed in claim 4, wherein a first sealing ring groove (404) is formed in one side of the limiting ring body (403) facing the ring carrier (102), a second sealing ring groove (108) corresponding to the first sealing ring groove (404) is formed in one side of the ring carrier (102) close to the sheath (101), and a sealing ring (6) is arranged between the first sealing ring groove (404) and the second sealing ring groove (108).

6. The ignition coil with the feedback signal for the automobile as claimed in claim 4, wherein the sidewall of the notch (401) is provided with a step groove (405), the step groove (405) is provided with a first sealing groove (406), the side edge of the conductive part (103) is provided with a step groove snap-fitted with the step groove (405), the inner wall of the step groove is provided with a second sealing groove (109) corresponding to the first sealing groove (406), and a sealing strip (7) is disposed between the first sealing groove (406) and the second sealing groove (109).

7. The ignition coil with feedback signal for automobile as claimed in claim 4, wherein the cover body (402) is provided with a hinge portion (407) symmetrically arranged on the outer circumferential wall of the side away from the conductive portion (103), the cover body (5) is provided with a first protrusion (501) on the circumferential side wall, the first protrusion (501) is rotatably connected with the hinge portion (407) through a hinge shaft (8), and both ends of the hinge shaft (8) are threadedly connected with the limiting nuts (9).

8. The ignition coil with the feedback signal for the automobile as claimed in claim 7, wherein a second protrusion (110) is disposed at an end of the conductive portion (103), a first threaded hole is formed in the second protrusion (110), a third protrusion (502) is disposed on a side of the cover (5) away from the first protrusion (501), a second threaded hole (503) corresponding to the first threaded hole is formed in the third protrusion (502), a fixing screw (10) is threadedly connected between the second threaded hole (503) and the first threaded hole, and a limit knob is disposed at an end of the fixing screw (10).

9. The ignition coil with the feedback signal for the automobile according to claim 4, wherein one side of the cover body (5) facing the circular support body (102) is respectively provided with a sealing ring (504), a rubber ring (505) positioned in the sealing ring (504), a rectangular pressing part (506) positioned in the rubber ring (505), a rubber circular body (507) positioned in the rectangular pressing part (506), and an arc part (508) symmetrically positioned between the rubber ring (505) and the rectangular pressing part (506) and used for limiting the voltage sensor (3), the sealing ring (504) is respectively in sealing contact with the inner wall of the cover body (402) and the inner wall of the conductive part (103), and the rubber ring (505) is in contact with the voltage sensor (3).

10. The automotive ignition coil with the feedback signal of claim 9, wherein the rectangular pressing portion (506) and the rubber round body (507) are respectively provided with a rectangular frame strip (509) and an isolation round body (510) at the sides away from the cover body (5), and the rectangular frame strip (509) and the isolation round body (510) are respectively in contact with the ignition coil winding group main body (2).

Technical Field

The invention relates to the technical field of automobiles, in particular to an automobile ignition coil with a feedback signal.

Background

The ignition coil of the automobile has the functions of changing low-voltage electricity into high-voltage electricity and realizing spark jumping through the spark plug, and the working principle of the ignition coil is that when the ignition system switching device switches on the low voltage of a primary coil, an iron core is magnetized along with the current passing through the low-voltage coil, so that a strong magnetic field is generated around the iron core, and the iron core stores magnetic field energy; when the switching device switches off the primary coil circuit, the iron core demagnetizes along with the instant disappearance of the primary coil magnetic field, and the magnetic force line rapidly contracts to cut the secondary coil high voltage, so that the secondary coil induces very high voltage; the high-voltage electricity is finally transmitted to the spark plug to jump and break down to ignite the combustible mixed gas, so that the piston is pushed to do work by huge gas thrust generated along with ignition of the combustible mixed gas.

At present, a closed magnetic ignition coil is generally adopted, an iron core similar to the shape III is wound around a primary coil, a secondary coil is wound outside the primary coil, and magnetic lines of force form a closed magnetic circuit by the iron core. When a magnetic force line cuts the secondary coil, the primary coil is cut at the same time, so that the primary coil also generates a self-induction voltage, the voltage reaches 200-300V, the direction of the self-induction voltage is the same as the direction of the original current, the original current is prevented from rapidly disappearing, the magnetic field is slowly shrunk, the induction voltage of the secondary coil is reduced, the spark plug cannot jump, strong sparks are formed between contacts of a breaker, and the contacts are quickly burnt; in order to eliminate the self-induced voltage, a capacitor is usually connected in parallel with the primary coil, and the self-induced voltage is stored by the capacitor, so that the slow contraction of the magnetic field is avoided, and the strong spark formed between contacts of the breaker is avoided.

In order to avoid the problems that after the capacitor is damaged, the spark plug cannot jump due to continuous ignition or the ignition of the spark plug is not enough to completely break down and ignite mixed gas and strong sparks are easily formed between contacts of the breaker, the invention designs the automobile ignition coil with the feedback signal for detecting whether the capacitor is damaged or not.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides the automobile ignition coil with the feedback signal, which can effectively solve the problems in the prior art.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a take automobile ignition coil of repayment signal, includes ignition coil connecting portion and installs the ignition coil winding group main part on the ignition coil connecting portion, still includes voltage sensor, protection portion and lid, ignition coil connecting portion include the sheath and set up the round support body in sheath one end, voltage sensor installs on the round support body and overlaps and establish the voltage that just is used for checking ignition coil winding group main part in the ignition coil winding group main part outside, protection portion installs on some round support body and is used for the protection of some ignition coil winding group main part and voltage sensor, the lid rotates to be installed on protection portion, lid and round support body fixed connection, and the lid is used for protecting and is used for some ignition coil winding group main part and voltage sensor to carry out spacing fixed with voltage sensor to ignition coil winding group main part and voltage sensor.

Furthermore, circle holds in the palm body circumference lateral wall and keeps away from sheath one side and is provided with the conductive part perpendicularly, and the conductive part is kept away from circle and is held in the palm body one side slope and be provided with the bayonet joint, and the conductive part is kept away from bayonet joint one side and is provided with the electric property socket group with bayonet joint electric connection, and circle holds in the palm body axle center department and is provided with the communicating mouth of wearing with the sheath, and circle holds in the palm body and keeps away from sheath one side and is provided with the ladder groove that is used for joint ignition coil winding group main part, ignition coil winding group main part passes through wire group and electric property socket group electric connection, and circle holds in the palm the body and keeps away from sheath one side still the symmetry and be provided with and wear the communicating wire casing of mouth, and the directional electric property socket group of wire casing and its one end setting that is close to conductive part one side are the taper structure, and the crossing department of ladder groove and wire casing has all seted up the lead mouth.

Furthermore, the voltage sensor is electrically connected with the electrical socket set through an electrical plug.

Furthermore, the protection part comprises a sleeve body with a notch and a limiting ring body arranged at one end of the sleeve body, the size of the notch is matched with that of the conductive part, the inner diameter of the sleeve body is equal to that of the circular support body, the sleeve body is sleeved on the outer side of the circular support body, the inner diameter of the limiting ring body is smaller than that of the circular support body, and the limiting ring body and the circular support body are in contact with each other in a manner of being abutted against one side of the protective sleeve.

Furthermore, one side of the limiting ring body facing the circular support body is provided with a first sealing ring groove, one side of the circular support body close to the sheath is provided with a second sealing ring groove corresponding to the first sealing ring groove, and a sealing ring is arranged between the first sealing ring groove and the second sealing ring groove.

Furthermore, the breach lateral wall all is provided with the ladder draw-in groove, and the ladder draw-in groove is provided with first sealed recess, the conductive part side all is provided with ladder draw-in groove joint complex ladder recess, and the sealed recess of second that corresponds with first sealed recess is all seted up to ladder recess inner wall, all is provided with the sealing strip between first sealed recess and the sealed recess of second.

Furthermore, the circumference outer wall of one side of the sleeve body, which is far away from the conductive part, is symmetrically provided with hinged parts, the circumference side wall of the cover body is provided with a first bulge part, the first bulge part and the hinged parts are rotatably connected through hinged shafts, and both ends of the hinged shafts are in threaded connection with limiting nuts.

Furthermore, the end part of the conductive part is provided with a second bulge, the second bulge is provided with a first threaded hole, one side of the cover body, which is far away from the first bulge, is provided with a third bulge, the third bulge is provided with a second threaded hole corresponding to the first threaded hole, a fixing screw is in threaded connection between the second threaded hole and the first threaded hole, and the end part of the fixing screw is provided with a limit knob.

Furthermore, the lid is provided with the sealing ring respectively towards circular support body one side, is located the intra-annular rubber ring of sealing ring, is located the intra-annular rectangle of rubber and presses the splenium, is located the rectangle and presses the rubber circle body of splenium and symmetry position rubber ring and rectangle to press and be used for limiting voltage sensor's arc portion, the sealing ring respectively with set internal wall and the sealed contact of conductive part inner wall, rubber ring and voltage sensor contact.

Furthermore, one side of the rectangular pressing part, which is far away from the cover body, and one side of the rubber round body, which is far away from the cover body, are respectively provided with a rectangular frame strip and an isolation round body, and the rectangular frame strip and the isolation round body are respectively contacted with the ignition coil winding group main body.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. the voltage sensor is arranged, so that the self-induction voltage of the winding set main body of the ignition coil is monitored in real time, the self-induction voltage is fed back to the ECU, the fed-back information is processed, when the self-induction voltage is detected, the ECU displays and prompts a vehicle owner that the ignition coil has problems, maintenance and replacement are needed, and the problems that a spark plug cannot jump fire or the ignition of the spark plug is insufficient to completely break down and ignite mixed gas and strong sparks are easily formed between contacts of a circuit breaker due to continuous ignition are avoided.

2. According to the invention, through the arrangement of the protection part and the cover body, the ignition coil winding group main body and the voltage sensor are convenient to assemble and disassemble, and are protected, so that the service lives of the ignition coil winding group main body and the voltage sensor are prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic illustration of an explosive structure according to the present invention;

FIG. 4 is a first perspective view of the connecting portion of the coil of fire of the present invention;

FIG. 5 is a second perspective view of the connecting portion of the coil of fire of the present invention;

FIG. 6 is a schematic view of the structure of the protection part of the present invention;

FIG. 7 is a schematic view of the structure of the cover of the present invention;

the reference numerals in the drawings denote: 1-a fire coil connection; 101-a sheath; 102-a circular support body; 103-a conductive portion; 104-a plug-in connector; 105-an electrical socket set; 106-step groove; 107-wire grooves; 108-a second seal ring groove; 109-a second seal groove; 110-a second projection; 2-ignition coil winding group main body; 201-a set of wires; 3-a voltage sensor; 301-an electrical plug; 4-a guard; 401-notch; 402-a sheath body; 403-a stop ring body; 404-a first seal ring groove; 405-a stepped card slot; 406-a first seal groove; 407-a hinge; 5-cover body; 501-a first projection; 502-a third projection; 503-a second threaded hole; 504-a seal ring; 505-rubber ring; 506-a rectangular pressing part; 507-rubber round body; 508-arc; 509-rectangular frame strip; 510-insulating round body; 6-sealing ring; 7-sealing strips; 8-a hinge axis; 9-a limit nut; and 10, fixing the screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

The automobile ignition coil with the feedback signal of the embodiment refers to fig. 1-7: including ignition coil connecting portion 1 and install ignition coil winding group main part 2 on ignition coil connecting portion 1, its characterized in that: still include voltage sensor 3, protection part 4 and lid 5, ignition coil connecting portion 1 includes sheath 101 and sets up the circle support body 102 in sheath 101 one end, voltage sensor 3 installs on circle support body 102 and overlaps and establish in the ignition coil winding group main part 2 outside and be used for the voltage of check ignition coil winding group main part 2, protection part 4 installs on some circle support body 102 and is used for the protection of ignition coil winding group main part 2 and voltage sensor 3, lid 5 rotates to install on protection part 4, lid 5 and circle support body 102 fixed connection, and lid 5 is used for protecting ignition coil winding group main part 2 and voltage sensor 3 and is used for spacing fixedly carrying out to ignition coil winding group main part 2 and voltage sensor 3.

According to the technical scheme, the voltage sensor 3 adopts a Hall voltage sensor with the model number of HV-C04, the voltage sensor 3 is used for detecting the self-induction voltage in the ignition coil winding group main body 2 during ignition and transmitting the detected signal to an ECU (vehicle-mounted computer), the ECU processes the feedback signal, if the self-induction voltage is detected, the ECU displays and prompts the ignition coil of a vehicle owner to have problems, maintenance and replacement are needed, and further, the phenomenon that the spark plug cannot jump over or the ignition of the spark plug is insufficient to completely break down and ignite mixed gas and strong sparks are easily formed between contacts of a circuit breaker due to continuous ignition is avoided.

In order to facilitate the assembly of the ignition coil winding group main body 2 and the voltage sensor 3, the protection part 4 is matched with the cover body 5, specifically, as follows:

as shown in fig. 3-5, a conductive part 103 is vertically disposed on a circumferential side wall of the round support body 102 and a side away from the sheath 101, a plug 104 is obliquely disposed on a side of the conductive part 103 away from the round support body 102, the plug 104 is used for electrically connecting the ECU and the battery, an electrical jack group 105 electrically connected with the plug 104 is disposed on a side of the conductive part 103 away from the plug 104, the electrical jack group 105 is provided with a plurality of electrical jacks corresponding to an electrical plug 301 of the voltage sensor 3 and a lead group 201 of the ignition coil winding group main body 2, so as to electrically connect the ignition coil winding group main body 2 with the battery and electrically connect the voltage sensor 3 with the ECU and the battery;

a through hole communicated with the sheath 101 is formed in the axis of the circular support body 102 and is used for a high-voltage diode and an anti-interference resistor of the ignition coil winding group main body 2 to penetrate into the sheath 101, and a stepped groove 106 used for clamping and connecting the ignition coil winding group main body 2 is formed in one side, away from the sheath 101, of the circular support body 102, so that the ignition coil winding group main body 2 can be conveniently and quickly clamped and limited on the circular support body 102 through the stepped groove 106; the side, away from the sheath 101, of the circular support body 102 is also symmetrically provided with wire grooves 107 communicated with the through openings, and the wire grooves 107 are respectively used for guiding the wire group 201 of the ignition coil winding group main body 2 to the electrical socket group 105 from the wire grooves 107, so that the wire group 201 is prevented from being damaged by extrusion of the voltage sensor 3; the wire groove 107 near one side of the conductive part 103 points to the electrical jack group 105 and one end of the wire groove near the electrical jack group 105 is arranged in a tapered structure, so that the ends of the wire group 201 are dispersed and respectively inserted into the electrical jack group 105; the intersection of the stepped slot 106 and the wire slot 107 is provided with a guide port; the lead group 201 is easily led from the stepped slot 106 into the lead slot 107.

As shown in fig. 4 to 6, the protective part 4 includes a sheath body 402 having a gap 401 and a limiting ring body 403 disposed at one end of the sheath body 402, the gap 401 is matched with the conductive part 103 in size, the inner diameter of the sheath body 402 is equal to the diameter of the circular support body 102, the sheath body 402 is sleeved outside the circular support body 102, the inner diameter of the limiting ring body 403 is smaller than the diameter of the circular support body 102, and the limiting ring body 403 is in abutting contact with one side of the circular support body 102 close to the sheath 101; in the technical scheme, the sleeve body 402 and the limiting ring body 403 can be made of plastic materials with insulating effects, so that the electric leakage of the ignition coil winding group main body 2 can be effectively avoided.

A first sealing ring groove 404 is formed in one side, facing the circular support body 102, of the limiting ring body 403, a second sealing ring groove 108 corresponding to the first sealing ring groove 404 is formed in one side, close to the sheath 101, of the circular support body 102, and a sealing ring 6 is arranged between the first sealing ring groove 404 and the second sealing ring groove 108; through the sealing ring 6, the sealing performance between the limiting ring body 403 and the circular support body 102 is improved, moisture and the like are prevented from entering a cavity formed by the circular support body 102, the protection part 4 and the cover body 5, and then the short circuit of the ignition coil winding group main body 2 is effectively avoided.

The side walls of the notches 401 are provided with stepped clamping grooves 405, the stepped clamping grooves 405 are provided with first sealing grooves 406, the side edges of the conductive parts 103 are provided with stepped grooves in clamping fit with the stepped clamping grooves 405, the inner walls of the stepped grooves are provided with second sealing grooves 109 corresponding to the first sealing grooves 406, and sealing strips 7 are arranged between the first sealing grooves 406 and the second sealing grooves 109; through the cooperation of ladder draw-in groove 405 and ladder recess for conductive part 103 and the contact side in close contact with of cover body 402, and through setting up sealing strip 7, seal conductive part 103 and the contact side in cover body 402, thereby further avoid moisture content etc. to get into the cavity that the circle held in the palm body 102, protection portion 4 and lid 5 are constituteed.

As shown in fig. 3 to 7, the outer wall of the circumference of the cover body 402 on the side away from the conductive portion 103 is symmetrically provided with hinge portions 407, the circumferential side wall of the cover body 5 is provided with a first protrusion 501, the first protrusion 501 is rotatably connected with the hinge portions 407 through a hinge shaft 8, and both ends of the hinge shaft 8 are connected with limiting nuts 9 by threads; the hinge shaft 8 respectively penetrates through the hinge portion 407 and the first bulge 501, so that the rotational installation of the cover body 5 and the sleeve body 402 is facilitated, and the hinge shaft 8 is prevented from being separated from the space between the hinge portion 407 and the first bulge 501 by limiting the limit of the nut 9 on the hinge shaft 8.

As shown in fig. 3 to 7, a second protrusion 110 is disposed at an end of the conductive portion 103, a first threaded hole is formed in the second protrusion 110, a third protrusion 502 is disposed on a side of the cover 5 away from the first protrusion 501, a second threaded hole 503 corresponding to the first threaded hole is formed in the third protrusion 502, a fixing screw 10 is connected between the second threaded hole 503 and the first threaded hole in a threaded manner, and a limit knob is disposed at an end of the fixing screw 10; through the cooperation of the fixing screw 10 and the first threaded hole 503 and the second threaded hole 503, the cover 5 is fixed on the conductive part 103 and the cover body 402 conveniently, and meanwhile, the cover body 402 and the conductive part 103 are fixed relatively, and the firmness of the cover body 402 and the ignition coil connecting part 1 is improved.

As shown in fig. 2 to 7, one side of the cover body 5 facing the circular support body 102 is respectively provided with a sealing ring 504, a rubber ring 505 located in the sealing ring 504, a rectangular pressing portion 506 located in the rubber ring 505, a rubber circular body 507 located in the rectangular pressing portion 506, and an arc portion 508 symmetrically located between the rubber ring 505 and the rectangular pressing portion 506 and used for limiting the voltage sensor 3, the sealing ring 504 is respectively in sealing contact with the inner wall of the cover body 402 and the inner wall of the conductive portion 103, and the rubber ring 505 is in contact with the voltage sensor 3; the sealing ring 504 is used for sealing between the cover body 5 and the sleeve body 402 and between the conductive parts 103, so as to further prevent moisture and the like from entering a cavity formed by the circular support body 102, the protection part 4 and the cover body 5; the voltage sensor 3 is limited on the circular support body 102 by the pressing contact of the rubber ring 505 on the voltage sensor 3 and the limitation of the arc part 508 on the voltage sensor 3, so that the stability of the voltage sensor 3 on the circular support body 102 is improved, and the ignition coil winding group main body 2 is limited on the circular support body 102 by the pressing contact of the rectangular pressing part 506 and the rubber circular body 507 on the ignition coil winding group main body 2, so that the stability of the ignition coil winding group main body 2 on the circular support body 102 is improved.

A rectangular frame strip 509 and an isolation round body 510 are respectively arranged on one side of the rectangular pressing part 506 away from the cover body 5 and one side of the rubber round body 507 away from the cover body 5, and the rectangular frame strip 509 and the isolation round body 510 are respectively contacted with the ignition coil winding group main body 2; this technical scheme square frame strip 509 adopts the rubber material for the back is covered in the lid 5 upset, makes the rectangle press the accurate outside framework of pressing ignition coil winding group main part 2 of splenium 506, simultaneously through isolated circle 510, avoids the direct winding group contact with ignition coil winding group main part 2 of rubber circle 507, and then effectively avoids the life of rubber circle 507.

During assembly, the lead wire set 201 of the ignition coil winding set body 2 is electrically connected to the electrical socket set 105, the ignition coil winding set body 2 is clamped in the stepped groove 106, the electrical plug 301 of the voltage sensor 3 is inserted into the electrical socket set 105, the cover body 5 is rotatably mounted on the sleeve body 402 through the hinge shaft 8, the limiting screw caps 9 are respectively connected with two ends of the hinging shaft 8 by screw threads for limiting, then the sleeve body 402 is sleeved from one end of the sheath 101 far away from the circular support body 102 to one end of the circular support body 102, so that the limiting ring body 403 is propped against the circular support body 102, then the cover body 5 is turned over and covered, and the cover body 5 is fixed on the conductive portion 103 by the fixing screw 10, so that the protection portion 4 is fixed on the circular support body 102, therefore, the protection part 4 and the cover body 5 form a protection cavity, and the ignition coil winding group main body 2 and the voltage sensor 3 are protected in the protection cavity.

When the ignition coil winding set is disassembled, the protection part 4 and the cover body 5 can be taken down from the circular support body 102 only by loosening and taking down the fixing screw rod 10, so that the ignition coil winding set main body 2 and the voltage sensor 3 can be replaced quickly and conveniently.

The device is through setting up voltage sensor 3 to real time monitoring ignition coil winding main part 2's self-induction voltage, with self-induction voltage repayment to ECU, handle the information of repayment, and when having self-induction voltage, ECU demonstration and suggestion car owner ignition coil goes wrong, need maintain with trading, and then avoid continuing to ignite and cause the spark plug can not jump fire or the ignition of spark plug is not enough to break through the problem of lighting the gas mixture completely and form strong spark easily between the outage contact, simultaneously through the setting of protection part 4 and lid 5, not only be convenient for assemble and dismantle ignition coil winding main part 2 and voltage sensor 3, and protect ignition coil winding main part 2 and voltage sensor 3, improve ignition coil winding main part 2 and voltage sensor 3's life.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.