CN219123089U

CN219123089U - Ignition coil high-voltage inserting sheet and mounting structure thereof

Info

Publication number: CN219123089U
Application number: CN202022817561.4U
Authority: CN
Inventors: 贾美洋; 周耀; 殷徐明
Original assignee: Hunan Hava Technology Co ltd
Current assignee: Hunan Hava Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2023-06-02
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses an ignition coil high-voltage inserting sheet and an installation structure thereof, wherein the ignition coil high-voltage inserting sheet comprises an inserting sheet body which is used for being installed on a secondary coil to be in contact with a high-voltage copper head, and the inserting sheet body is of a conductive elastic sheet structure, such as a metal sheet with elasticity and good conductivity. The high-voltage inserting piece of the ignition coil aims at solving the technical problem that in the prior art, when a secondary coil of the ignition coil is clamped with a high-voltage copper head through the high-voltage inserting piece, the secondary coil is in poor contact.

Description

Ignition coil high-voltage inserting sheet and mounting structure thereof

Technical Field

The utility model relates to the field of high-voltage inserting sheets of ignition coils, in particular to a high-voltage inserting sheet of an ignition coil and a mounting structure of the high-voltage inserting sheet of the ignition coil.

Background

In recent years, the automotive electronics industry in China rapidly develops, the demand for ignition coils is increased, the quality requirements are also increased, and the technical indexes of product performance are also improved. In the ignition system of automobile engine, the ignition coil is an executive component for providing ignition energy for igniting the mixture of air and fuel in the engine cylinder, it is a special pulse transformer based on electromagnetic induction principle, and the high voltage generated by the ignition coil can even reach more than 35 KV.

When the ignition coil works, the secondary coil generates higher voltage through induction, the voltage can be increased along with the increase of the number of turns of the secondary coil until saturation is reached, so that the highest voltage of the whole ignition coil is carried on a high-voltage inserting sheet connected with the secondary coil, and the high-voltage inserting sheet and a copper wire in the middle part of the secondary coil form very high voltage difference at the moment, and under the condition that the larger voltage difference exists, any gap inside the ignition coil can generate a creepage breakdown phenomenon; the high voltage is easier to form breakdown phenomenon at a sharp position; the inside of the existing ignition coil is insulated by adopting epoxy resin, and the voltage withstand values of the thickness of the epoxy resin are changed, so that the thicker the epoxy resin is, the more remarkable the voltage withstand effect is, and the technical problem to be solved by the technical personnel in the field is to provide a method for effectively improving the high-voltage conduction of the ignition coil of the automobile engine and ensuring the product quality.

In the prior art, the secondary coil of the ignition coil is connected with the high-voltage copper head to form a high-voltage inserting piece to clamp the high-voltage copper head structure, and as the high-voltage copper head is clamped into a hole on the high-voltage inserting piece, the inserting piece is subjected to a transverse force, in order to ensure that the inserting piece is not seriously deformed, 2 support plates are added on a framework to support the high-voltage inserting piece, the risk of climbing along the support plates is generated, and when the high-voltage copper head is clamped into the high-voltage inserting piece hole, the high-voltage inserting piece is deformed to one side of the secondary coil, so that the insulation distance between the high-voltage inserting piece and the secondary coil is reduced; in the assembly process, the copper head can be misaligned with the high-voltage plug hole, or the plug hole can be enlarged under the condition of oblique assembly, so that the copper head cannot be clamped, and poor contact is caused.

Disclosure of Invention

First, the technical problem to be solved

Based on the above, the utility model provides a high-voltage insertion sheet of an ignition coil, which aims to solve the technical problem of poor contact when a secondary coil of the ignition coil is clamped with a high-voltage copper head through the high-voltage insertion sheet in the prior art.

(II) technical scheme

In order to solve the technical problems, the utility model provides a high-voltage insertion sheet of an ignition coil, which comprises an insertion sheet body used for being installed on a secondary coil to be in contact with a high-voltage copper head, wherein the insertion sheet body is of a spring sheet structure with conductivity.

Preferably, the insert body includes a mounting portion for mounting to the secondary coil and a contact portion bent and extended from the mounting portion, the contact portion being for contacting the high-voltage copper head.

Preferably, the mounting portion and the contact portion have an angle of greater than 90 °.

Preferably, the mounting portion includes a main sheet body and a long sheet extending from the main sheet body.

In addition, the utility model provides a mounting structure of the high-voltage insertion sheet of the ignition coil, wherein the mounting structure of the high-voltage insertion sheet of the ignition coil comprises a shell, a secondary coil, a high-voltage copper head and the high-voltage insertion sheet of the ignition coil, the insertion sheet body is mounted in an insertion sheet supporting seat of the secondary coil, and the high-voltage insertion sheet of the ignition coil is pressed against the high-voltage copper head by virtue of elasticity.

Preferably, the insert body is inserted into a slot on the insert supporting seat.

Preferably, a clamping boss is formed in the shell, and the high-voltage copper head is clamped on the clamping boss.

(III) beneficial effects

Compared with the prior art, the high-voltage inserting piece for the ignition coil has the beneficial effects that:

the insert body is supported by the high-voltage copper head without adding an additional supporting plate, and is bent by being propped against the copper head in use, and the insert body is tightly attached to the copper head under the elastic action, so that good contact between the insert body and the copper head is ensured; the insert body is in surface-to-surface close contact with the high-voltage copper head, so that the contact area is large, and the voltage loss is small; the secondary coil is far away from the high-voltage copper head, so that the insulation distance is effectively increased.

Drawings

The features and advantages of the present utility model will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the utility model in any way, in which:

FIG. 1 is a perspective view of an ignition coil high voltage insert according to an embodiment of the present utility model;

FIG. 2 is a perspective view of an ignition coil high voltage insert of an embodiment of the present utility model assembled to a secondary coil;

fig. 3 is a perspective view of an ignition coil high voltage insert of an embodiment of the present utility model assembled to a housing of an ignition coil.

Reference numerals illustrate:

1. the high-voltage copper head comprises a shell, 2 secondary coils, 3, an inserting piece supporting seat, 4, a clamping boss, 5, a high-voltage copper head, 100, an inserting piece body, 101, a mounting part, 102, a contact part, 103 and a strip piece.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, electrical connection, direct connection, indirect connection through an intermediate medium, communication between the inside of the 2 elements, or "transmission connection", i.e. power connection by various suitable means such as belt transmission, gear transmission or sprocket transmission. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 3, the present utility model provides a high voltage plug for an ignition coil, which includes a plug body 100 for being mounted on a secondary coil 2 to contact with a high voltage copper head 5, wherein the plug body 100 is a conductive spring structure, such as a metal sheet with good elastic conductivity, and the like, the spring structure indicates that the plug body 100 has elasticity, and the plug body 100 does not need to be additionally provided with a supporting plate to support, when in use, the plug body 100 is supported and bent by the high voltage copper head 5, and the plug body 100 is tightly attached to the copper head under the action of elasticity.

According to an embodiment of the present utility model, the tab body 100 includes a mounting portion 101 for mounting to the secondary coil 2 and a contact portion 102 extending from the mounting portion 101 in a bent manner, the contact portion 102 being for contacting the high voltage copper head 5. The mounting portion 101 and the contact portion 102 have an angle of greater than 90 °. The mounting portion 101 includes a main sheet body and a strip piece 103 extending from the main sheet body, and the strip piece 103 extends to be better fixed to the casing 1 of the ignition coil, but the specific structural form of the insert body 100 and the included angle between the mounting portion 101 and the contact portion 102 are not limited thereto, and can be flexibly designed and changed according to actual needs.

Further, referring to fig. 3, the present utility model provides a mounting structure of an ignition coil high-voltage insertion sheet, wherein the mounting structure of the ignition coil high-voltage insertion sheet includes a housing 1, a secondary coil 2 mounted in the housing 1, a high-voltage copper head 5, and the above-mentioned ignition coil high-voltage insertion sheet, an insertion sheet body 100 is mounted in an insertion sheet supporting seat 3 of the secondary coil 2, and the ignition coil high-voltage insertion sheet is elastically pressed against the high-voltage copper head 5. The insert body 100 is inserted into a slot on the insert supporting seat 3, specifically, the mounting portion 101 of the insert body 100 is inserted into a slot on the insert supporting seat 3. A clamping boss 4 is formed in the shell 1, and a high-voltage copper head 5 is clamped on the clamping boss 4.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an ignition coil high pressure inserted sheet, its characterized in that includes the inserted sheet body that is used for installing in secondary coil in order to contact with high-pressure copper head, the inserted sheet body is the shell fragment structure that has electric conductivity.

2. The ignition coil high voltage tab of claim 1 wherein the tab body includes a mounting portion for mounting to a secondary coil and a contact portion extending from the mounting portion in a bent manner for contacting a high voltage copper head.

3. An ignition coil high voltage insert as recited in claim 2, wherein said mounting portion is angled at greater than 90 ° from said contact portion.

4. The ignition coil high voltage insert of claim 2 wherein said mounting portion comprises a main body and an elongated tab extending from said main body.

5. An ignition coil high-voltage insert mounting structure, characterized in that the ignition coil high-voltage insert mounting structure comprises a housing, a secondary coil mounted in the housing, a high-voltage copper head, and an ignition coil high-voltage insert according to any one of claims 1 to 4, the insert body is mounted in an insert support seat of the secondary coil, and the ignition coil high-voltage insert is pressed against the high-voltage copper head by means of elasticity.

6. The ignition coil high-voltage insert mounting structure of claim 5 wherein said insert body is inserted in a slot in said insert support.

7. The mounting structure of high voltage plug-in sheet for ignition coil according to claim 5, wherein a locking boss is formed in the housing, and the high voltage copper head is locked to the locking boss.