CN221175948U - Connection structure of primary and secondary wires and plug of ignition coil - Google Patents

Abstract

The utility model discloses a connection structure of a primary wire and a secondary wire of an ignition coil and a plug, wherein a first jack, a second jack and a third jack are fixedly arranged on a shell, and the primary wire and the secondary wire are respectively and electrically connected with the three jacks; the two inserting sheets of the plug are provided with three inserting connectors which are bent downwards; the three plug connectors are correspondingly plugged into the three jacks respectively to realize electrical connection. The three connection points of the primary wire, the secondary wire and the plug insert can be assembled and connected through a pushing-down insertion action, the wire heads of the enameled wires do not need to be twisted manually, welding is not needed after lapping, and the production efficiency is effectively improved; laying a foundation for realizing assembly production of the ignition coil in a pipelining manner; the quality hidden trouble caused by poor welding and soldering slag is avoided, meanwhile, the assembly action is simplified and standardized, and the quality hidden trouble caused by human factors can be reduced.

Description

Connection structure of primary and secondary wires and plug of ignition coil

Technical Field

The utility model relates to a connection structure of a primary wire and a secondary wire of an automobile ignition coil and a plug.

Background

In the automobile ignition coil, a 14V voltage power supply converts energy into high voltage of 35KV through the turns ratio of the primary coil to the secondary coil and an iron core, so that the breakdown spark plug is used for ignition. However, the wire ends of the primary and secondary coil enamelled wires are connected and conducted through the inserting pieces on the plug. In the prior art, the assembly operation of the connection is to lap the primary and secondary wires on the inserting sheet of the plug and fix the wires by soldering tin. As shown in fig. 1-2, the head end 1 of the primary wire is twisted and lapped on the first inserting sheet 4 of the plug 6 for soldering; both the secondary wire 2 and the tail end 3 of the primary wire need to be twist lapped over the second blade 5 of the plug 6 for soldering.

The prior art has the following defects: 1. the phenomenon of poor welding occurs at a certain probability in the soldering tin, and the soldering slag falls into the coil, so that the quality hidden trouble affecting the service life of the coil is caused; 2. the thread ends of the primary and secondary threads are required to be twisted and spliced on the inserting sheet manually, so that the production efficiency is reduced.

Disclosure of utility model

In order to solve the defects, the utility model aims to provide a connection structure of a primary wire and a secondary wire of an automobile ignition coil and a plug, so that the hidden quality trouble is effectively eliminated, and the production efficiency is improved. In order to solve the technical problem, the utility model adopts the technical scheme that the connection structure of the primary wire and the plug of the ignition coil comprises a shell of the ignition coil, a primary wire, a secondary wire and the plug, wherein the plug comprises a first inserting piece and a second inserting piece; the first inserting piece is provided with a first inserting joint and a second inserting joint which are bent downwards, and the second inserting piece is provided with a third inserting joint which is bent downwards; the first plug connector is correspondingly plugged into the first jack to realize electrical connection, the second plug connector is correspondingly plugged into the second jack to realize electrical connection, and the third plug connector is correspondingly plugged into the third jack to realize electrical connection.

The utility model has the advantages that by adopting the technical scheme, the assembly connection of the three connection points of the primary wire, the secondary wire and the plug insert can be completed through the action of one pushing and inserting, the wire ends of the enameled wires do not need to be twisted manually, the welding is not needed after the lap joint, and the production efficiency is effectively improved; laying a foundation for realizing assembly production of the ignition coil in a pipelining manner; the quality hidden trouble caused by poor welding and soldering slag is avoided, meanwhile, the assembly action is simplified and standardized, and the quality hidden trouble caused by human factors can be reduced.

In an improvement, the first and second insert sheets are provided with an insulating outer cover. So as to prevent the short circuit phenomenon and further eliminate the hidden quality trouble.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Drawings

FIG. 1 is a schematic diagram of a connection structure between a primary and a secondary wire and a plug of an ignition coil according to the prior art;

FIG. 2 is a schematic structural view of a first blade and a second blade of a prior art plug;

FIG. 3 is a schematic view of the structure of the first blade and the second blade of the plug of the embodiment;

FIG. 4 is a schematic diagram of the mating structure of the primary and secondary wires with the first and second blades (with the plug and insulating overwrap removed) of an embodiment;

FIG. 5 is a schematic view of the overall structure of the plug of the embodiment (the first blade and the second blade having an insulating outer cover installed thereon);

fig. 6 is a schematic diagram of the overall structure of the connection assembly of the primary and secondary wires and the plug according to the embodiment.

Detailed Description

Referring to fig. 3-6, one specific configuration of the present utility model is reflected. In the case of the connection structure between the primary wire and the plug of the ignition coil including the housing 100 of the ignition coil, in the example, a first jack 108, a second jack 109 and a third jack 110 are fixedly arranged on the housing 100, the tail end of the primary wire is electrically connected with the first jack 108, the secondary wire is electrically connected with the second jack 109, and the head end of the primary wire is electrically connected with the third jack 110.

The plug 106 of the ignition coil comprises a first blade 104 and a second blade 105. In an example, the first tab 104 is provided with a first tab 101 and a second tab 102 bent downward, and the second tab 105 is provided with a third tab 103 bent downward. In an example, the first insert sheet 104 and the second insert sheet 105 are provided with an insulating outer cover layer 107, and wrap part of the insert sheets exposed outside the plug 106 to avoid short circuit, but not wrap the insert joints of the connection parts.

By adopting the technical scheme, when the primary and secondary wires are connected with the plug inserting piece, the mounting groove 112 of the plug neck is pressed down and inserted into the notch part 111 of the shell. At this time: the first plug connector 101 is correspondingly inserted into the first jack 108 to realize electric connection with the tail end of the primary wire, the second plug connector 102 is correspondingly inserted into the second jack 109 to realize electric connection with the secondary wire, the third plug connector 103 is correspondingly inserted into the third jack 110 to realize electric connection with the head end of the primary wire, and the connection points of the three plug connectors and the jacks can be assembled and connected through a pushing-down insertion action, so that the wire ends of enameled wires are not required to be twisted manually, welding is not required after lapping, and the production efficiency is effectively improved; lays a foundation for realizing the assembly line type manual assembly production of the ignition coil. In addition, the embodiment does not need welding, eliminates quality hidden trouble caused by poor welding and soldering slag, simplifies and standardizes assembly actions, and can effectively reduce quality hidden trouble caused by human factors.

The embodiments of the utility model disclosed above are intended only to assist in the description of the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in conjunction with the accompanying drawings in order to best explain the principles of the utility model and the practical application, and to thereby enable others skilled in the art to best understand and utilize the 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 of the utility model, it is therefore intended that the utility model be limited only by the claims and the full scope and equivalents thereof, and not by the specific embodiments disclosed.

Claims (2)

1. The connection structure of the primary and secondary wires of the ignition coil and the plug comprises a shell of the ignition coil, a primary wire, a secondary wire and the plug, wherein the plug comprises a first inserting piece and a second inserting piece; the first inserting piece is provided with a first inserting joint and a second inserting joint which are bent downwards, and the second inserting piece is provided with a third inserting joint which is bent downwards; the first plug connector is correspondingly plugged into the first jack to realize electrical connection, the second plug connector is correspondingly plugged into the second jack to realize electrical connection, and the third plug connector is correspondingly plugged into the third jack to realize electrical connection.

2. The connection structure of primary and secondary wires and plug of ignition coil according to claim 1, wherein said first and second blades are provided with insulating outer wrapping.