CN201092925Y

CN201092925Y - Ignition coil

Info

Publication number: CN201092925Y
Application number: CNU2007201441505U
Authority: CN
Inventors: 彭启立; 刘晖
Original assignee: United Automotive Electronic Systems Co Ltd
Current assignee: United Automotive Electronic Systems Co Ltd
Priority date: 2007-08-17
Filing date: 2007-08-17
Publication date: 2008-07-30
Anticipated expiration: 2017-08-17

Abstract

The utility model discloses an ignition coil which comprises a plastic shell, a coil winding which is composed of a primary coil and a secondary coil, and a primary plug, wherein the coil winding is press-mounted into the plastic shell after preassembly, an elastic connecting sheet is preassembled on the coil winding, the elastic connecting sheet occurs elastic deformation during the process that the coil winding is press-mounted into the plastic shell and is electrically connected with a high pressure head on the plastic shell, and the connection of a secondary high voltage circuit is realized. The secondary circuit high voltage output end of the ignition coil adopts a mode that the elastic connecting sheet and the high pressure head are reliably connected, the production efficiency is high, the waste product rate is low, and the market competitiveness of the product is increased.

Description

Spark coil

Technical field

The utility model relates to the electric parts that a kind of automobile, motorcycle are used, and relates in particular to a kind of spark coil.

Background technique

At present, the high-head Placement of known spark coil high-voltage output end generally adopts clamping, spring ways of connecting.As shown in Figure 1, the mode of clamping is the components A 6 of establishing an energy and the high-head A3 clamping of plastic casing A2 on coil winding A1, these components A 6 ends are provided with latch A5, when coil winding A1 presses fit into plastic casing A2, the latch A5 that the high-head A3 of plastic casing A2 and coil winding A1 go up clamping part A6 contact and agrees with and snap in latch A5, the connection of formation spark coil inner high voltage circuit.As shown in Figure 2, the spring Placement is to establish a spring B 4 on coil winding B1, and this spring B 4 is shape in the shape of a spiral, when coil winding B1 presses fit into plastic casing B2, high-head B3 on the plastic casing B2 contacts with spring B 4 on the coil winding B1, forms the connection of spark coil inner high voltage circuit.The resiliently deformable that adopts the helical spring Placement to take place in assembly process is not unidirectional, therefore causes connection unreliable easily.

Adopt above-mentioned clamping or spring ways of connecting dimension precision requirement height to related components, also high to the assembly precision requirement of relevant assembly technology, cause manufacturing efficiency low, the reject rate height.

The model utility content

The technical problems to be solved in the utility model provides a kind of spark coil, and it is low that it has overcome the inner secondary circuit high-voltage output end of existing spark coil Placement manufacturing efficiency, and the shortcoming that reject rate is high has improved the competitiveness of product in market.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of spark coil comprises coil winding and elementary plug that plastic casing, primary air and secondary winding are formed.Press fit in the described plastic casing after the described coil winding preassembly; The flexible connecting sheet of prepackage on the described coil winding; Resiliently deformable takes place in described flexible connection piece in coil winding presses fit into the process of plastic casing, be electrically connected with high-head on the plastic casing, realizes the connection of secondary high pressure circuit.

Above-mentioned spark coil, wherein: described plastic casing is provided with elementary plug interface, and described elementary plug inserts this elementary plug interface and is connected on the plastic casing.

Above-mentioned spark coil, wherein: the secondary winding winding of described coil winding is provided with the flexible connection piece socket, and described flexible connection piece inserts this flexible connection piece socket and is fixed on the coil winding.

Above-mentioned spark coil, wherein: an end of described flexible connection piece inserts described flexible connection piece socket and is fixed on the coil winding, and the other end of this flexible connection piece is designed to the structure that cooperates with the high-head terminal end shape.

Above-mentioned spark coil, wherein: resiliently deformable takes place in described flexible connection piece in coil winding presses fit into the assembly process of plastic casing, this flexible connection piece is designed to be electrically connected with high-head on the plastic casing with the other end of described high-head terminal end shape cooperating structure, realizes the connection of the inner secondary high pressure circuit of spark coil.

The beneficial effects of the utility model are: this spark coil secondary circuit high-voltage output end adopts a kind of flexible connection piece and the reliable ways of connecting of high pressure pin, its Placement is convenient, fast, assembly technology is simple, manufacturing efficiency height, reject rate are low, have improved the reliability of products and the market competitiveness.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is the structural representation that existing employing snap fit connects the high-head spark coil of high-voltage output end;

Fig. 2 is the structural representation that existing employing spring Placement connects the high-head spark coil of high-voltage output end;

Fig. 3 is the structural representation of the utility model spark coil when unassembled;

Fig. 4 is that the utility model spark coil assembles the structural representation when finishing.

Embodiment

As shown in Figure 3 and Figure 4, the utility model provides a kind of spark coil, comprises plastic casing 1, coil winding 2 and elementary plug 3, and plastic casing 1 is provided with elementary plug interface 13; Press fit in the described plastic casing 1 after coil winding 2 preassembly; The flexible connecting sheet 22 of prepackage on the coil winding 2; The secondary winding winding of coil winding 2 is provided with flexible connection piece socket 21, and flexible connection piece 22 inserts this flexible connection piece socket 21 and is fixed on the coil winding 2.Plastic casing 1 is provided with high pressure pin 12 (being high-head).One end of flexible connection piece 22 inserts flexible connection piece socket 21 and is fixed on the coil winding 2, and the other end of this flexible connection piece 22---free end 221 is designed to the structure that cooperates with high pressure pin 12 terminal end shape.Elementary plug 3 inserts elementary plug interface 13 and is connected on the plastic casing 1, resiliently deformable takes place in flexible connection piece 22 in coil winding 2 presses fit into the assembly process of plastic casing 1, the free end 221 of flexible connection piece 22 is electrically connected with high pressure pin 12 on the plastic casing 1, realizes the connection of the inner secondary high pressure circuit of spark coil.

The resiliently deformable that the flexible connection piece that the utility model adopts takes place in assembly process is unidirectional, and the resiliently deformable that existing employing spring Placement takes place in assembly process is multi-direction, dimension precision requirement height to related components, therefore the utility model compared with prior art, the reliability of its Placement is stronger, not only improve manufacturing efficiency, reduced reject rate, also improved the competitiveness of product in market.

Claims

1. a spark coil comprises coil winding and elementary plug that plastic casing, primary air and secondary winding are formed, it is characterized in that: press fit in the described plastic casing after the described coil winding preassembly; The flexible connecting sheet of prepackage on the described coil winding; Resiliently deformable takes place in described flexible connection piece in coil winding presses fit into the process of plastic casing, be electrically connected with high-head on the plastic casing, realizes the connection of the inner secondary high pressure circuit of spark coil.

2. spark coil as claimed in claim 1 is characterized in that: described plastic casing is provided with elementary plug interface, and described elementary plug inserts this elementary plug interface and is connected on the plastic casing.

3. spark coil as claimed in claim 1 is characterized in that: the secondary winding winding of described coil winding is provided with the flexible connection piece socket, and described flexible connection piece inserts this flexible connection piece socket and is fixed on the coil winding.

4. spark coil as claimed in claim 3 is characterized in that: an end of described flexible connection piece inserts described flexible connection piece socket and is fixed on the coil winding, and the other end of this flexible connection piece is designed to the structure that cooperates with described high-head terminal end shape.

5. spark coil as claimed in claim 4, it is characterized in that: resiliently deformable takes place in described flexible connection piece in coil winding presses fit into the assembly process of plastic casing, this flexible connection piece is designed to be electrically connected with high-head on the plastic casing with the other end of described high-head terminal end shape cooperating structure, realizes the connection of the inner secondary high pressure circuit of spark coil.