Connector device for preventing ignition coil buckle from falling off

Abstract

The utility model relates to a connector assembly device capable of preventing an ignition coil buckle from falling off. The connector assembly device comprises a wedge-shaped hook buckle and an ignition coil female end connector assembly. The wedge-shaped hook buckle is arranged at the front end of a plastic shell of the ignition coil female end connector, and the wedge-shaped hook buckle and the plastic shell are of an integrated structure formed through mold injection molding; the shape of the ignition coil female end connector is matched with the internal outline of the matched male end connector, and the ignition coil female end connector is matched with the male end connector to complete electric signal transmission and sealing; the position of the wedge-shaped hook buckle is matched with the position of a clamping groove in the inner side of the male end connector, and the wedge-shaped hook buckle and the male end connector are locked when the ignition coil female end connector and the male end connector are connected in an inserted mode. The wedge-shaped hook buckle is of a wedge-shaped structure comprising a rectangular pressure-bearing face and a wedge-shaped slope face. According to the utility model, the structural strength of the buckle is increased, and the risks of deformation and falling are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coil buckles, and particularly to a plug device for preventing the ignition coil buckle from falling off. Background Art

[0002] During the after-sales service process of natural gas engines (such as adjusting valve clearance), the ignition coil needs to be disassembled and assembled multiple times. The failure rate of loose connection of the plug caused by the falling off of the ignition coil plug buckle accounts for a high proportion in after-sales. The existing ignition coil plug is designed as EWCAP 120-S-004-1-A02, with a T-shaped buckle design and an average pull-off force of 153.2 N.

[0003] The defects of the existing technology are as follows:

[0004] As Figure 5 、 6 、shown in Figure 7, due to the narrow width of the reinforcing rib on the T-shaped buckle structure of the existing technology being 0.8 mm, the strength of increasing the pressure-bearing surface against deformation is limited. Therefore, during the warranty period of the ignition coil, with aging and multiple disassembly and assembly, there will still be obvious deformation at the upper end of the pressure-bearing surface until it falls off. Summary of the Invention

[0005] Aiming at the above problems, the utility model provides a plug device for preventing the ignition coil buckle from falling off, aiming to increase the buckle structure strength and reduce the risk of deformation and falling off.

[0006] To solve the above problems, the technical solution provided by the utility model is as follows:

[0007] A plug device for preventing the ignition coil buckle from falling off, comprising a wedge hook buckle and a female terminal plug of the ignition coil. Among them: the wedge hook buckle is arranged at the front end of the plastic shell of the female terminal plug of the ignition coil, and the two are an integrally formed structure by mold injection molding; the shape of the female terminal plug of the ignition coil matches the internal contour of the mating male terminal plug, and cooperates with the male terminal plug to complete the transmission and sealing of electrical signals; the position of the wedge hook buckle matches the position of the card slot on the inner side of the male terminal plug, and locks the two when the female terminal plug of the ignition coil is inserted into the male terminal plug; the wedge hook buckle is a wedge structure comprising a rectangular pressure-bearing surface and a wedge-shaped slope surface.

[0008] Preferably, the wedge-shaped slope surface is arranged horizontally behind the rectangular pressure-bearing surface, and the two are an integrally formed structure by mold injection molding.

[0009] Preferably, the thickness of the rectangular pressure-bearing surface is 1 mm, the height is 14 mm, the width is 2.7 mm, and the included angle with the horizontal plane is 86°.

[0010] Preferably, the top of the wedge-shaped slope surface is 14 mm high, 2.7 mm wide, and the included angle with the horizontal plane is 30°.

[0011] Preferably, the distance from the bottom end of the rectangular bearing surface to the installation end surface of the ignition coil female terminal connector on the coil is 12 mm.

[0012] Preferably, the average pull-off force of the wedge-shaped hook buckle is 208 N.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] Since the present invention adopts a buckle structure combining a wedge-shaped slope surface and a rectangular bearing surface, the strength of the buckle structure is increased, and the average pull-off force is increased to 208 N. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view schematic diagram of the connector for preventing the ignition coil buckle from falling off according to a specific embodiment of the present invention;

[0016] Figure 2 It is a partial enlarged view schematic diagram of the wedge-shaped hook buckle according to a specific embodiment of the present invention;

[0017] Figure 3 It is a front view schematic diagram of the connector for preventing the ignition coil buckle from falling off according to a specific embodiment of the present invention;

[0018] Figure 4 It is a side view schematic diagram of the connector for preventing the ignition coil buckle from falling off according to a specific embodiment of the present invention;

[0019] Figure 5 It is a top view schematic diagram of the prior art T-shaped buckle according to a specific embodiment of the present invention;

[0020] Figure 6 It is a front view schematic diagram of the prior art T-shaped buckle according to a specific embodiment of the present invention;

[0021] Figure 7 It is a side view schematic diagram of the prior art T-shaped buckle according to a specific embodiment of the present invention.

[0022] Wherein: 1. Wedge-shaped hook buckle, 2. Ignition coil female terminal connector, 1.1. Rectangular bearing surface, 1.2. Wedge-shaped slope surface DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further illustrated below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, various equivalent modifications made by those skilled in the art to the present invention all fall within the scope defined by the appended claims of this application.

[0024] As Figure 1 , 2 , 3, and 4 show, a connector device for preventing the ignition coil buckle from falling off, which includes a wedge hook buckle 1 and a female terminal connector 2 of the ignition coil. Among them: The wedge hook buckle 1 is provided at the front end of the plastic housing of the female terminal connector 2 of the ignition coil, and the two are an integrally formed structure by die injection molding; the shape of the female terminal connector 2 of the ignition coil matches the internal contour of the mating male terminal connector, and cooperates with the male terminal connector to complete the transmission and sealing of electrical signals; the position of the wedge hook buckle 1 matches the position of the card slot on the inner side of the male terminal connector, and locks the two when the female terminal connector 2 of the ignition coil is inserted into the male terminal connector; the wedge hook buckle 1 is a wedge-shaped structure including a rectangular bearing surface 1.1 and a wedge-shaped slope surface 1.2.

[0025] It should be noted that the wedge-shaped slope surface 1.2 is provided horizontally behind the rectangular bearing surface 1.1, and the two are an integrally formed structure by die injection molding.

[0026] In this specific embodiment, the thickness of the rectangular bearing surface 1.1 is 1 mm, the height is 14 mm, the width is 2.7 mm, and the angle with the horizontal plane is 86°.

[0027] It should be further noted that the rectangular bearing surface 1.1 is used to bear the pressure during the pulling after being locked with the card slot of the male terminal connector of the wire harness.

[0028] In this specific embodiment, the top of the wedge-shaped slope surface 1.2 is 14 mm high, 2.7 mm wide, and the angle with the horizontal plane is 30°.

[0029] It should be further noted that the wedge-shaped slope surface 1.2 is used to support the rectangular bearing surface 1.1 and reduce deformation, increasing the strength of the buckle structure.

[0030] In this specific embodiment, the distance from the bottom end of the rectangular bearing surface 1.1 to the installation end surface of the female terminal connector 2 of the ignition coil on the coil is 12 mm.

[0031] In this specific embodiment, the average pull-off force of the wedge hook buckle 1 is 208 N.

[0032] In this specific embodiment, the male terminal connector is a standard part, and its model includes TE 1-1456426-1.

[0033] In this specific embodiment, the structure of the female connector 2 of the ignition coil is the same as that of the standard part EWCAP 120-S-004-1-A02 after removing the buckle structure.

[0034] In the above detailed description, various features are combined together in a single embodiment to simplify the present disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly recited in each claim. On the contrary, as reflected in the appended claims, the present invention lies in a state less than all the features of the single disclosed embodiment. Therefore, the appended claims are hereby expressly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present invention.

[0035] In order for any person skilled in the art to implement or use the present invention, the disclosed embodiments have been described above. For those skilled in the art; various modifications of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0036] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but those of ordinary skill in the art should recognize that each embodiment can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the manner in which this term is encompassed is similar to the term "including," as that term is interpreted when used as a transitional word in the claims. In addition, any use of the term "or" in the claims or the specification is to mean "non-exclusive or."

[0037] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A connector device for preventing an ignition coil buckle from falling off, characterized in that: The invention comprises a wedge-shaped hook buckle (1) and an ignition coil female end connector (2), wherein: the wedge-shaped hook buckle (1) is arranged at the front end of the plastic shell of the ignition coil female end connector (2), and the two are an integral structure formed by mold injection molding; the shape of the ignition coil female end connector (2) matches the internal contour of the matching male end connector, and cooperates with the male end connector to complete electrical signal transmission and sealing; the position of the wedge-shaped hook buckle (1) matches the position of the inner slot of the male end connector, and locks the ignition coil female end connector (2) and the male end connector when they are plugged together; the wedge-shaped hook buckle (1) is a wedge-shaped structure comprising a rectangular pressure-bearing surface (1.1) and a wedge-shaped slope surface (1.2).

2. The connector device for preventing the ignition coil buckle from falling off according to claim 1, characterized in that: The wedge-shaped slope surface (1.2) is arranged horizontally behind the rectangular pressure-bearing surface (1.1), and the two are an integral structure formed by mold injection molding.

3. The connector device for preventing the ignition coil buckle from falling off according to claim 2, characterized in that: The rectangular pressure-bearing surface (1.1) has a thickness of 1 mm, a height of 14 mm, a width of 2.7 mm, and an angle of 86° with the horizontal plane.

4. The connector device for preventing the ignition coil buckle from falling off according to claim 3, characterized in that: The top of the wedge-shaped slope (1.2) is 14 mm high and 2.7 mm wide, and its angle with the horizontal plane is 30°.

5. The connector device for preventing the ignition coil buckle from falling off according to claim 4, characterized in that: The distance from the bottom end of the rectangular pressure-bearing surface (1.1) to the mounting end surface of the ignition coil female connector (2) on the coil is 12 mm.

6. The connector device for preventing the ignition coil buckle from falling off according to claim 5, characterized in that: The average pull-out force of the wedge-shaped hook buckle (1) is 208N.

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