JP2000161138A - Cylinder head cover device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily make electrical connections between various electronic parts provided in an internal combustion engine and a battery or a ECU without laying wire harnesses around the internal combustion engine in a complicated fashion or assembling a wiring circuit body to a cylinder head cover itself or requiring new members with the wiring circuit body assembled therein. SOLUTION: Four injectors 100 are aligned on one side of a cylinder head. A cylinder head cover 1 mounted on the upper portion of the cylinder head is provided with a high voltage generating part 40 for each cylinder and a baffle plate 20 is mounted in the cylinder head cover 1. A connector for connection to the outside is placed at one end of the cylinder head cover 1 and connections between the high voltage generating parts 40, the injectors 100 and either an external ECU or a battery are made via a wiring circuit body 21 formed in the baffle plate 20 and via the connector 2 for connection to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cylinder head cover device mounted on a cylinder head in an internal combustion engine of an automobile or the like.

[0002]

2. Description of the Related Art In recent years, in internal combustion engines such as automobiles,
For example, many electronic components such as an injector for injecting fuel into each combustion chamber of an internal combustion engine, an ignition coil independently provided for each cylinder, and other intake temperature sensors and oxygen concentration sensors are provided. It is becoming.

[0003] In this case, it is necessary to electrically connect the above-mentioned electronic components to a vehicle battery or an ECU (engine control unit). If the wiring for this purpose is conventionally used, that is, if a wiring harness is used, the wiring harness needs to be routed in a complicated manner around the internal combustion engine, which complicates the assembly work. become.

Therefore, a wiring circuit for making electrical connection between various electronic components and a battery or an ECU is incorporated in a cylinder head cover itself attached to a cylinder head of an internal combustion engine, or the wiring circuit is mounted on an upper portion of the cylinder head cover. It has been considered to attach a wiring portion made of another member incorporated. For example, Japanese Patent Application Laid-Open No. 9-31755
No. 6, as disclosed in JP-A-6.

[0005]

However, in the configuration in which the wiring circuit is incorporated into the cylinder head cover itself, the cylinder head cover, which is originally a large and complicated molded product, is further complicated, and the molding cost is increased. Will be up. In addition, by incorporating the wiring circuit body, the strength of the cylinder head cover decreases,
It also results in poor sound insulation.

On the other hand, in a configuration in which a wiring portion made of a separate member incorporating the above-described wiring circuit body is mounted on the upper portion of the cylinder head cover, the new separate member increases the complexity of the structure, increases the cost, and increases the weight. Will be invited.

Therefore, the present invention has been made to solve the above-described problems, and does not require complicated wiring of a wire harness around an internal combustion engine, and incorporates a wiring circuit body into a cylinder head cover itself. Provided is a cylinder head cover device capable of easily performing electrical connection between various electronic components mounted on an internal combustion engine and a battery or an ECU without requiring a new member incorporating a wiring circuit body. Aim.

[0008]

According to a first aspect of the present invention, there is provided a cylinder head cover device mounted on a cylinder head of an internal combustion engine having a plurality of electronic components. A cylinder head cover having a hollow and lower opening attached so as to cover the upper portion of the cylinder head, and a baffle plate provided in the cylinder head cover and separating an upper space and a lower space therein,
A wiring circuit body is formed on the baffle plate, and a connector for external connection is provided at one end thereof, and a connector for connecting each of the electronic components is provided at the other end thereof.

According to a second aspect of the present invention, there is provided a cylinder head cover device which is mounted on a cylinder head of an internal combustion engine having an injector disposed on one side thereof, wherein a coil housing portion is concavely formed on an upper surface. A mounting hole is formed at the bottom of the coil accommodating portion, and a hollow and downward-opening cylinder head cover which is mounted so as to cover the upper portion of the cylinder head, an upper space provided inside the cylinder head cover and a lower portion thereof It has a baffle plate for partitioning a space, a coil part having a built-in ignition coil, and an adapter part suspended from the coil part. The adapter part is inserted into the mounting hole and placed and fixed in the coil receiving part. With a high voltage generator
A wiring circuit body is formed on the baffle plate, and the connector for connecting the injector is provided at one end thereof, and the connector for connecting the ignition coil is provided at the other end thereof.

In this case, as described in claim 3,
A connector insertion hole is formed at the bottom of the coil accommodating portion and at a peripheral portion of the mounting hole, and the connector for connecting the ignition coil is inserted into the connector insertion hole on the upper surface of the baffle plate. On the other hand, a coil-side connector electrically connected to an ignition coil inside the high-voltage generating section is formed on the high-voltage generating section, and the baffle plate is mounted in the cylinder head cover, thereby connecting the ignition coil. In a state where a connector is inserted through the connector insertion hole and protrudes upward from the bottom of the coil accommodating portion, the high-voltage generating portion is placed and fixed in the coil accommodating portion, whereby the connector for connecting the ignition coil is connected. And the coil side connector may be connected.

[0011] According to a fourth aspect of the present invention, there is further provided an extension wiring portion in which an extension circuit is disposed in a protective body made of an elastic member, and one end of the extension wiring portion is connected to one end of the baffle plate. One end of the extension circuit body is attached to a side edge portion, and one end of the extension circuit body is electrically connected to the wiring circuit body. At the other end, the injector connection connector is provided at the other end of the extension circuit body. Provided in an electrically connected state, with the head cover body attached to the cylinder head, the connector for injector connection is led out from one side of the cylinder head cover to the connector on the injector side. The connection may be possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cylinder head cover device according to an embodiment of the present invention will be described.

First, an internal combustion engine to which the cylinder head cover device is attached will be described. The internal combustion engine is of a four-cylinder in-line type used in automobiles and the like, and as shown in FIG. A protrusion Ha protruding outward on one side of a cylinder head H of the engine.
Are formed, and four injectors 100 for injecting fuel into the combustion chamber of each cylinder are arranged on the upper surface of the protrusion Ha.

Each injector 100 opens and closes a needle valve by turning on and off the energization of a built-in solenoid coil, and controls the amount of fuel injected into the combustion chamber by the time of opening and closing the needle valve. is there.

At the top of each injector 100, an injector-side connector 101 which can be connected to an injector connector 33 described later is formed. In the injector side connector 101, terminals electrically connected to one end and the other end of the winding of the solenoid coil are provided.

FIGS. 1 to 3 show a cylinder head cover device.
As shown in FIG. 1, a cylinder head cover 1 attached so as to cover an upper portion of a cylinder head H, and a baffle plate 20 provided in the cylinder head cover 1 are provided.
And four high-voltage generators 40 provided on the cylinder head cover 1 for each cylinder.

The cylinder head cover 1 is formed in a hollow and box-like shape with a downward opening, and has a coil receiving portion 10 having a substantially rectangular shape in plan view recessed in the upper surface thereof.

The coil housing 10 has a cylinder head H
There are formed four mounting holes 11 protruding from the upper surface of each of the cylindrical plug hole members Hb and communicating with the insides of the respective plug hole members Hb. Under the inner peripheral surface of each of the mounting holes 11, a sealing material 11a is provided, which is in close contact with the outer peripheral surface of the plug hole member Hb and seals the inside and outside of the plug hole member Hb. Further, a connector insertion hole 12 through which a coil connector 25 of the baffle plate 20 described later can be inserted is formed on one side of each of the mounting holes 11, and a screw 51 described later is screwed on the other side of each of the mounting holes 11. Screw holes 13 that can be combined are formed respectively.

As shown in FIG. 2, the opening formed from the upper portion to one side portion of the coil accommodating portion 10
The lid 55 is attached so as to close the opening.

An outside air suction pipe 6 and a gas exhaust pipe 7 communicating with the internal space of the cylinder head cover 1 are provided on both sides of one end face of the cylinder head cover 1, and fresh air is supplied through the outside air suction pipe 6. By ventilating the inside of the cylinder head cover 1 by discharging the blow-by gas in the cylinder head cover 1 through the gas exhaust pipe 7 while injecting the outside air into the cylinder head cover 1.

Further, a connector housing 2 for external connection is provided at a central portion of one end surface of the cylinder head cover 1, and one end portion of a wiring circuit body 21 formed on a baffle plate 20 is connected to the outside, as described later. It will be arranged in the connector housing 2 for connection.

Further, at one side edge of the cylinder head cover 1, there are formed four outlets 4 for leading out an injector connector 33 at the other end of the later-described injector extension wiring section 30 to the outside. .

At three places on both sides of the cylinder head cover 1, mounting portions 8 for mounting the cylinder head cover 1 to the cylinder head H are formed.
A cap 9 that closes an opening for injecting engine oil is attached to one corner of the upper surface of the cylinder head cover 1.

As shown in FIGS. 1 to 4, each of the high-voltage generating sections 40 includes a coil section 41 and an adapter section 45 which is integrally provided vertically downward from the coil section 41.

Each coil portion 41 includes an ignition coil composed of a primary coil and a secondary coil, a switching element for intermitting a primary coil current which is a driving circuit of the ignition coil, and the like in a case formed of an insulating resin. , As a predetermined electric circuit for generating a secondary high voltage.
Further, the outer shape is finished in a short columnar shape having an outer diameter larger than the inner diameter of the mounting hole 11.

In addition, one side of each of the coil sections 41 includes:
A coil-side connector 42 that can be connected to a coil connector 25 described later is formed.
Two connection terminals electrically connected to both ends of the primary coil winding of the ignition coil in the ignition coil unit 41 and the switching element are provided in the second coil 2.

Further, a mounting portion 43 having a screw insertion hole 44 is formed on the other side of each coil portion 41. The screw 51 is inserted through the screw insertion hole 44 to
Is screwed into the screw hole 13 at the bottom of the coil housing 10 so that each high-voltage generating unit 40 is attached to the coil housing 10.

Each adapter part 45 is provided with each mounting hole 11.
Each plug hole member Hb is formed in a long column shape that can be inserted into each plug hole member Hb, and a high-voltage terminal for connection with a spark plug is accommodated in the distal end thereof. In the inserted state, each of these high-voltage terminals is electrically connected to an ignition plug provided on the cylinder head H side, whereby the high voltage of the secondary coil generated by each coil section 41 is applied to each ignition. It is configured to be applied to the plug.

As shown in FIGS. 2 to 4, the baffle plate 20 is a plate-like member formed of an insulating resin or the like, and the upper surface thereof is on the lower surface side (back surface side) of the bottom of the coil housing portion 10. The upper space and the lower space in the cylinder head cover 1 are mounted in the cylinder head cover 1 so that the upper space and the lower space in the cylinder head cover 1 are brought into contact with each other.
Is configured so as to partition in a peripheral area. On this occasion,
Normally, the baffle plate 20 is attached to the cylinder head cover 1 by interposing a silicone sealant at a contact portion between the lower surface of the bottom of the coil housing portion 10 and the upper surface of the baffle plate 20. This attachment may be performed by using a.

A hole 20a through which the plug hole member Hb can be inserted is formed at each position of the baffle plate 20 corresponding to the plug hole member Hb. When each plug hole member Hb is attached to
0a, and the upper end of each plug hole Hb is fitted into each mounting hole 11 formed in the coil housing 10 (see FIGS. 2 and 4).

The baffle plate 20 receives the oil scattered on the cylinder head H due to the rotation of the camshaft of the internal combustion engine or the like, and the outside air suction pipe 6 of the oil.
Of course, the baffle plate 20 of the present embodiment has injectors 100, which are various electronic components provided in the internal combustion engine, and performs a main function of preventing intrusion into the gas exhaust pipe 7. External coil EC
Wiring circuit 2 for electrically connecting to U and battery
1 is further formed.

That is, on the baffle plate 20, a bus bar made of a thin band-shaped thin metal plate is disposed inside or on the upper surface or the lower surface thereof in a predetermined wiring pattern, whereby the wiring for the injector 100 is formed. Circuit 21
The wiring circuit body 21B for A and the coil portion 41 is formed. In this case, the wiring circuit bodies 21A and 21B constitute the wiring circuit body 21 as a whole.

One end of each of the wiring circuit bodies 21A and 21B is
The baffle plate 20 is provided in an external connection connector 20b formed at one end of the baffle plate 20 and serves as a terminal for connection with another external connector. This external connection connector 20
b, the baffle plate 20 is connected to the cylinder head cover 1
The external connection connector housing 2 is disposed at a position facing the inside through the sealing member 56 in a state where the connector housing 2 is mounted inside. Then, by connecting an external connector attached to an end portion of a wire harness or the like here, each wiring circuit body 21A, 21B is configured to be electrically connected to an external battery or ECU.

A coil connector 25 is formed at each position on the upper surface of the baffle plate 20 corresponding to each connector insertion hole 12.

Each coil connector 25 is formed by attaching a housing 23 to each terminal group consisting of three terminals 22b protruding from the upper surface of the baffle plate 20.

That is, at each position corresponding to each connector insertion hole 12 at the bottom of the coil housing 10, the wiring circuit 2
The other end of 1B is bent substantially vertically upward, thereby forming three terminals 22b for power supply to the primary coil portion to the coil portion 41, switching element control, and ground. ing.

The housing portion 23 has a prismatic shape, and has a terminal accommodating portion 23a penetrating vertically. Terminal accommodating part 23a
, Three relay terminals 24 corresponding to the three terminals 22b are accommodated and arranged, and the upper and lower ends of each of the relay terminals 24 are inserted with the terminal 22b which is a male terminal and the terminal 42b in the coil side connector 42. It is formed on a connectable female terminal. Each of the housing portions 23 is attached to each of the terminal groups on the baffle plate 20 such that the terminals 22b are respectively inserted and connected from below into the female terminals below the relay terminals 24 therein. .

When the baffle plate 20 is mounted in the cylinder head cover 1, each coil connector 2
5 are respectively inserted from below into the connector insertion holes 12 of the coil accommodating portion 10 and are disposed so as to protrude toward the upper surface side of the bottom of the coil accommodating portion 10. In this state, by attaching each high-voltage generating section 40 to the coil accommodating section 10, each coil-side connector 42 is connected to the coil connector 25 from above, that is, each terminal 42b in each coil-side connector 42 is Each of the relay terminals 24 is inserted and connected from above into the upper female terminal portion, so that each of the corresponding terminals 22b and each of the terminals 42b is electrically connected through each of the relay terminals 24.

The housing member 23 has a sealing member 26 having a groove 26a formed on the outer peripheral surface thereof along the circumferential direction.
When the respective coil connectors 25 are inserted into the respective connector insertion holes 12, the respective groove portions 26 a engage with the peripheral portions of the connector insertion holes 12, and the sealing material 26 allows the connector insertion holes 12 and the coil to be inserted. It is configured such that a seal between the connectors 25 is achieved.

Further, on one side of the baffle plate 20,
As shown in FIGS. 1, 3 and 5, each injector 10
Four extension wiring portions 30 for injectors are formed corresponding to 0.

Each of the injector extension wiring portions 30 is provided as an extension circuit body in a long protective body 34 made of a flexible member such as rubber whose both ends are bent horizontally and downward. An FFC 35 (flexible flat cable) having two conductors is inserted. Here, the FFC refers to a flexible flat electric wire having a plurality of conductors arranged in parallel.

One end of each injector extension wiring portion 30 is formed on a mounting portion 31 which can hold one side edge of the baffle plate 20, and this mounting portion 31 is mounted on one side edge of the baffle plate 20. In this state, the conductor at one end of the FFC 35 derived from the mounting portion 31 is electrically connected to the other end of the printed circuit body 21A on the baffle plate 20.

The other end of each injector extension wiring section 30 is formed as a downward injector connector 33 connectable to the injector connector 101. In the injector connector 33, two terminals 33b are arranged corresponding to the two terminals of the injector-side connector 101, and the other end of each conductor of the FFC 35 is electrically connected to each terminal 33b. ing.

Each of the injector extension wiring sections 30 is led out to the outside through the outlet 4 at one side edge of the cylinder head cover 1, and is connected to each of the injector connectors with the cylinder head cover 1 attached to the cylinder head H. 3
3 are configured to be connectable to the respective injector-side connectors 101.

Next, a method of assembling the cylinder head cover device will be described.

First, each coil connector 25 and each injector extension wiring section 30 are formed on the baffle plate 20, and the sealing material 26 is inserted into the coil connector 25, and the sealing material 56 is inserted into the external connection connector 20b. After mounting, the baffle plate 20 is mounted in the cylinder head cover 1. At this time, each coil connector 2
5 is inserted into the connector insertion hole 12 so that the coil accommodating portion 1
0 and project the extension wiring portion 30 for each injector from the outlet 4 to the cylinder head cover 1.
Is derived outside. Next, the cylinder head cover 1 is mounted on the cylinder head H via the mounting portion 8.
Thereby, each plug hole member Hb on the cylinder head H side is inserted into each hole 20 a of the baffle plate 20, and the upper end thereof is fitted into each mounting hole 11 of the coil housing 10. Then, the adapter part 45 is inserted into each of the mounting holes 11 from above, and the coil side connector 42 is connected to the coil connector 25 so that each of the high voltage generation parts 40
Is mounted and fixed on the bottom of the coil accommodating section 10 with the screw 51. When the cylinder head cover 1 is attached to the cylinder head H, each injector-side connector 101
The injector-side connectors 33 are arranged on the upper side of the connector, so that the injector-side connectors 33 are pressed down and connected to the injector-side connectors 101. In the cylinder head cover device manufactured as described above, the ignition coil and the injector 100 in the high-voltage generating unit 40 are connected to the external connection connector 20 from the wiring circuit bodies 21A and 21B formed on the baffle plate 20.
Thus, the battery is electrically connected to the external ECU and the battery via the “b”, so that the power supply from the battery to each ignition coil and each injector 100 and the drive control by the ECU can be performed.

In the cylinder head cover device configured as described above, the conventional baffle plate 20
Since the wiring circuit body 21 is incorporated above, cost reduction, structure simplification, and weight reduction can be achieved as compared with the conventional configuration in which members dedicated to the wiring circuit body are separately provided.

Further, since the wiring circuit body 21 is incorporated on the baffle plate 20, the cylinder head cover 1
Compared with a conventional configuration in which a wiring circuit body is incorporated in itself, a cylinder head cover 1 having excellent strength and sound insulation can be realized. In particular, a metal cylinder head cover 1 can be used. There is an advantage that the complexity can be prevented and the cost can be reduced.

Further, since the wiring circuit body 21 is incorporated on the baffle plate 20, the assembling work is easier as compared with a conventionally conceivable configuration in which a wire harness is routed around the cylinder head cover 1. Moreover, since the wiring circuit body 21 is provided in the cylinder head cover 1, the appearance is good, and the provision of the wiring circuit body 21 in the cylinder head cover 1 does not require a protective structure of the wiring circuit body 21 itself. From this point, cost reduction, simplification of structure, weight reduction, and improvement of assemblability are achieved.

In summary, the wiring harness does not need to be routed around the internal combustion engine in a complicated manner, and a wiring circuit is incorporated into the cylinder head cover 1 itself, or a new member incorporating the wiring circuit is required. The high voltage generator 40 and the injector 100, which are various electronic components mounted on the internal combustion engine, and an external battery or ECU
Electrical connection between them can be easily performed.

Further, since the coil connectors 25 project from the coil accommodating section 10, the high voltage generating sections 40 are simply attached to the coil accommodating sections 10. The connection between the coil-side connectors 42 is achieved, and in this regard, the assemblability is further improved.

Further, each injector extension wiring portion 30 is led out to one side of the cylinder head cover 1 and when the cylinder head cover 1 is mounted on the cylinder head H, each injector connector 33 is connected to the injector 10.
Since it is configured to be disposed on the upper side of the injector-side connector 101, the connection between the injector connector 33 and the injector-side connector 101 is easy, and the assemblability is also improved from this point.

The extension wiring section 30 for each injector
Has a structure in which the FFC is inserted into a molded body made of a flexible member, and therefore has flexibility as a whole. Therefore, the position of the end portion of the injector connector 33 and the position of the injector side Even if the position with the connector 101 is slightly shifted, the connection between the two is easy.

Further, even when the injector 100 is mounted on an internal combustion engine of a different type, it can be dealt with only by changing the design of the extension wiring portion 30 for the injector, which is excellent in versatility.

As for the baffle plate 20, if the bore pitch of the internal combustion engine (the arrangement pitch of the cylinders of the internal combustion engine) is the same, the same baffle plate 20 is used for different types of internal combustion engines. Therefore, the versatility is excellent.

The wiring circuit body 21 formed on the baffle plate 20 is formed by a bus bar, and a general electric wire is laid on the baffle plate 20;
C is arranged along the baffle plate 20 (a plurality of FFCs are connected by welding or the like at the branching and bending portions), FPC (Flexible Printed Circuit: a conductor is provided on an insulating film by a predetermined wiring) A configuration in which a pattern is wired on the baffle plate 20 or a configuration in which the baffle plate 20 itself is formed by a printed wiring board may be employed.

The electronic components connected to an external ECU or a battery via a wiring circuit 21 formed on the baffle plate 20 include an ignition coil and an injector 100 in the high-voltage generating section 40 and a variable valve. Electronic components directly mounted on the cylinder head cover 1 and electronic components located near the electronic components, such as a timing switching valve, an intake air temperature sensor, an intake air pressure sensor, a water temperature sensor, an oil temperature sensor, a hydraulic pressure sensor, etc. It can be applied to electronic components.

[0058]

As described above, according to the cylinder head cover device of the first aspect of the present invention, the wiring circuit body is formed on the baffle plate, the connector for external connection is provided on one end side, and the other end is provided. Since the connector for connecting each electronic component is provided on the side, the wiring harness does not have to be routed complicatedly around the internal combustion engine, and a wiring circuit body is incorporated in the cylinder head cover itself, or a new wiring circuit body is incorporated. The electrical connection between the high-voltage generator, which is various electronic components mounted on the internal combustion engine, the baffle plate, and an external battery or ECU can be easily performed without requiring any special members.

According to the cylinder head cover device of the present invention, the wiring circuit is formed on the baffle plate provided in the cylinder head cover.
A connector for external connection is provided at one end of the wiring circuit body, and a connector for connecting the injector and a connector for connecting the ignition coil are provided at the other end, so that a wire harness is provided around the internal combustion engine. High voltage generation, which is an electronic component equipped in an internal combustion engine, without complicated handling and without the need to incorporate a wiring circuit into the cylinder head cover itself, or to require new members incorporating the wiring circuit Electrical connection between the unit, the baffle plate, and an external battery or ECU can be easily performed.

According to a third aspect of the present invention, a connector insertion hole is formed at the bottom of the coil accommodating portion and at the periphery of the mounting hole, and the connector for connecting the ignition coil is inserted into the upper surface of the baffle plate. The coil-side connector electrically connected to the ignition coil inside the high-voltage generating portion is formed on the high-voltage generating portion while being erected in a state in which it can be inserted into the hole, and the baffle plate is mounted in the cylinder head cover. The high voltage generating unit is placed and fixed in the coil housing in a state where the connector for connecting the ignition coil is inserted into the connector insertion hole and protrudes upward from the bottom of the coil housing, so that the ignition coil is connected. When the connector and the coil side connector are connected,
The connection between the coil connection connector and the coil-side connector is achieved simply by attaching the high voltage generating section to the coil accommodating section. In this regard, the assemblability is further improved.

Furthermore, the present invention further comprises an extension wiring portion in which an extension circuit is disposed in a protective body made of an elastic member, and one end of the extension wiring portion is connected to one side of the baffle plate. One end of the extension circuit body is attached to the edge, and one end of the extension circuit body is electrically connected to the wiring circuit body. At the other end, a connector for injector connection is electrically connected to the other end of the extension circuit body. When the connector for injector connection is led out from one side of the cylinder head cover and connected to the connector on the injector side with the head cover body attached to the cylinder head, the cylinder head cover is attached to the cylinder head. Mounting on the top makes it easy to connect the connector for injector connection to the connector on the injector side, improving the assemblability. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cylinder head cover device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view showing the cylinder head cover device.

FIG. 3 is an exploded perspective view showing the cylinder head cover according to the first embodiment.

FIG. 4 is a partial cross-sectional side view showing a main part of the cylinder head cover device.

FIG. 5 is an enlarged sectional view of a main part showing an extension wiring portion for an injector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylinder head cover 2 External connection connector 10 Coil accommodating part 11 Mounting hole 12 Connector insertion hole 20 Baffle plate 21 Wiring circuit body 21A, 21B Wiring circuit body 25 Coil connector 30 Injector extension wiring part 33 Injector connector 40 High voltage generation Part 41 Coil part 42 Coil side connector 45 Adapter part 100 Injector 101 Injector side connector H Cylinder head

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F02P 15/00 303 F02P 15/00 303E F16M 1/02 F16M 1/02 A H01F 38/12 H01F 31/00 501G 501F (72) Inventor Yoshiyuki Matsuo 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside Harness Research Institute, Inc. (72) Kamakura Mitsuhisa 1-7-10, Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Shares 3G019 AA05 KA12 KA21 KA23 KB07 KC09 KC10 3G024 AA04 AA72 DA01 DA18 EA01 FA05 FA13 FA14 GA25 GA26 GA40 3G066 BA56 BA66 CD04 CD25 CD26

Claims (4)

[Claims] 1. A cylinder head cover device attached to a cylinder head of an internal combustion engine provided with a plurality of electronic components, wherein the cylinder head cover has a hollow and lower opening and is attached so as to cover an upper portion of the cylinder head. A baffle plate provided in the cylinder head cover to partition an upper space and a lower space therein; a wiring circuit body is formed on the baffle plate; and a connector for external connection is provided at one end of the wiring circuit body. And a connector for connecting the electronic components on the other end. 2. A cylinder head cover device mounted on a cylinder head of an internal combustion engine having an injector disposed on one side, wherein a coil receiving portion is recessed on an upper surface, and a mounting hole is formed in a bottom portion of the coil receiving portion. A hollow and lower opening cylinder head cover attached to cover the upper portion of the cylinder head; a baffle plate provided in the cylinder head cover to partition an upper space and a lower space therein; and an ignition coil. And a high-voltage generating section that is fixedly mounted in the coil housing section by inserting the adapter section into the mounting hole and having a coil section having a built-in coil section and an adapter section suspended from the coil section. A wiring circuit is formed on the baffle plate, and a connector for external connection is provided at one end of the wiring circuit. The other end to the cylinder head cover device connector is provided for the ignition coil connected to a connector for an injector connection. 3. A connector insertion hole is formed at a bottom portion of the coil housing portion and at a peripheral portion of the mounting hole, and the connector for connecting the ignition coil can be inserted into the connector insertion hole on an upper surface of the baffle plate. On the other hand, a coil-side connector electrically connected to an ignition coil inside the high-voltage generating section is formed in the high-voltage generating section, and the baffle plate is mounted in the cylinder head cover. With the connector for connecting an ignition coil inserted through the connector insertion hole and protruding upward from the bottom of the coil housing, the high-voltage generating unit is mounted and fixed in the coil housing to achieve the ignition. 3. The cylinder head cover device according to claim 2, wherein a coil connection connector and the coil side connector are connected. 4. An extension wiring portion in which an extension circuit body is disposed in a protective body made of an elastic member, wherein one end of the extension wiring portion is attached to one side edge of the baffle plate, and In a state where one end of the extension circuit is electrically connected to the wiring circuit and the other end of the connector for injector connection is electrically connected to the other end of the extension circuit. The connector for connecting the injector is led out from one side of the cylinder head cover to be connectable to the connector on the injector side when the head cover body is attached to the cylinder head.
Or the cylinder head cover device according to 3.