CN201289944Y

CN201289944Y - Plug of great current automobile cigarette lighter

Info

Publication number: CN201289944Y
Application number: CNU2008200858811U
Authority: CN
Inventors: 盛明良
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-16
Filing date: 2008-04-16
Publication date: 2009-08-12
Anticipated expiration: 2018-04-16

Abstract

The utility model relates to a plug of a heavy-current automobile cigarette lighter. The plug comprises a screw lid and a plug casing; the screw lid and the plug casing are combined so as to form a cavity; and a conductive column head, a fuse, a fixing element, a connecting sheet, a heatproof rim, a spring, a plug main body and a conductive spring plate which are connected with each other in sequence are arranged in the interior of the cavity; a pair of homogeneous symmetric limiting grooves for spring plates are formed on the plug main body at one end connected with the screw lid; and an opening-shaped limiting groove and a pair of homogeneous symmetric limiting groove are formed on the plug main body. The plug of the cigarette lighter is applicable to cigarette lighter sockets with various calibers, the spring is nonconductive, the contact performance is better, the heat dissipation can be performed in time, and the cigarette lighter plug can stand heavy current ranging from 10 to 20 ampere.

Description

Big electric current automobile cigarette lighter plug

Technical field

The utility model relates to the plug that uses on a kind of automobile cigarette lighter, especially a kind of big electric current automobile cigarette lighter plug that uses on the various different bore automobile smoking bases that is applicable to.

Background technology

Because present all kinds of vehicular electrical appliances are more and more, what power supply was provided substantially all is the automobile cigarette lighter socket, and the designed automobile-used cigarette lighter socket of each automaker is connected with 12 volts of direct-flow storage batteries of automotive interior, can be by the electrical appliance work of buying car in installments of a cigarette lighter plug output power that plugs together with it.But existing this class plug is combining and is providing in the operating process of vehicular electrical appliance work about electric power with the automobile smoking base, still has following defective:

1, owing to the designed automobile-used cigarette lighter socket of each automaker is unified as yet, from all having of 20mm to 22mm bore, therefore existing plug is difficult to be suitable for fully the smoking base of various different bores, if use reluctantly, to cause loose contact, the generation step-down changes, and noise or noise occur, even influences storage battery useful life.

2, because the kind of vehicular electrical appliance product is quite a lot of at present, different vehicular electrical appliance products may be used in same automobile smoking base or same vehicular electrical appliance product uses different automobile smoking bases, this kind phenomenon must cause that plug pulls out on smoking base, slotting situation is very frequent, the current flowing instability, and present cigarette lighter plug can only bear electric current below 10 amperes, in case electric current exceeds 10 amperes, will cause blowout, cause circuit interruption, also can produce step-down changes, noise or noise occur, have a strong impact on storage battery useful life, influence user's normal use.

3, the automobile cigarette lighter plug in the course of the work at present, be used with socket, be in closed comparatively speaking space, conduction column cap and electroconductive elastic sheet are respectively the two poles of the earth of power supply, electrically connect with the automobile cigarette lighter socket, by circuit knowledge as can be known, the place that electrically contacts is arranged, must have electrical loss, the heating of resistance generation just, and the heating of this part mostly is created in slotting enclosure interior, and long closed environment is if can't dispel the heat, can cause fuse overheated, light then shorten useful life of fuse, serious meeting causes blowout, causes circuit interruption, also can produce step-down changes, noise or noise occur, have a strong impact on storage battery useful life, influence user's normal use.

Summary of the invention

The purpose of this utility model provides a kind of being applicable to and uses on the various different bore automobile smoking bases, can in time dispel the heat again simultaneously, can be by the automobile cigarette lighter plug of big electric current.

To be solved in the utility model is that existing automobile cigarette lighter plug can not be by the problem of big electric current.

The utility model embodiment is: big electric current automobile cigarette lighter plug, comprise screw lid and plug casing, it is characterized in that: described screw lid and plug casing engage and form a cavity, and inside cavity is provided with conduction column cap, fuse, retaining element, brace, insulating collar, spring, plug body, the electroconductive elastic sheet that mutual order is linked together; The end that plug casing is connected with screw lid be provided with a pair of shell fragment limiting groove symmetrically; An opening shape limiting groove and a pair of symmetrically limiting groove are arranged on the plug body.

The utility model product can be suitable for the automobile cigarette lighter socket of various different bores, the advantage that has easy heat radiation, stable performance, can bear more than 10 amperes big electric current below 20 amperes.

Description of drawings

For further specifying technology contents of the present utility model, below in conjunction with drawings and Examples the utility model is further described, wherein:

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 2 is a section of structure of the present utility model.

Fig. 3 is main structure body figure of the present utility model.

Wherein: the 1st, the conduction column cap; The 2nd, screw lid, the 21st, internal thread; The 3rd, fuse; The 4th, retaining element, the 41st, brace, the 42nd, insulating collar; The 5th, spring; The 6th, plug body, the 61st, opening shape limiting groove, the 62nd, limiting groove; The 7th, electroconductive elastic sheet; The 8th, plug casing, the 81st, plug casing screw thread, the 82nd, shell fragment limiting groove, the 83rd, tapered collar; The 9th, lead, the 91st, elastic tape.

Embodiment

In order to understand the utility model better, further set forth below by embodiment.

As shown in the figure, the big electric current automobile cigarette lighter of the utility model plug, it comprises screw lid 2 and plug casing 8, the screw thread 81 that screw lid 2 is provided with internal thread 21 and plug casing 8 engages cavity of formation, and inside cavity is provided with conduction column cap 1, fuse 3, retaining element 4, brace 41, insulating collar 42, spring 5, plug body 6 and the electroconductive elastic sheet 7 that mutual order is linked together.The end that plug casing 8 is connected with screw lid 2 is provided with a pair of shell fragment limiting groove 82 symmetrically, the other end is provided with tapered collar 83, can insert lead 9, a bare wire of this lead 9 connects (welding) by plug body 6 opening shape limiting grooves 61 with brace 41, another root bare wire connects (welding) by the aperture on the electroconductive elastic sheet 7 with it, make conduction column cap 1 and electroconductive elastic sheet 7 form power circuit, bear more than 10 amperes to the electric current below 20 amperes by fuse 3.

Conduction column cap 1 is installed in screw lid 2 front ends, but the power supply of conducting automobile storage battery, and the rear end can be connected with the fuse 3 of inserting successively, is connected fully with fuse 3 because of hollow makes it, further strengthens conductive effect, improves to contact with the good of socket.

Plug body 6 is the U-shaped shape, and its front outer protrudes, be enclosed within plug casing screw thread 81 before; Plug body 6 is provided with a pair of limiting groove 62 symmetrically, wherein simultaneously is provided with an opening shape limiting groove 61 at limiting groove 62; Plug body 6 inside are hollow form, distinguish inserting spring 5, insulating collar 42, brace 41, retaining element 4 and fuse 3 from lower to upper, and insulating collar 42 is connected brace 41 and separates with spring 5, make spring 5 non-conductive.

Electroconductive elastic sheet 7, camber, in the aperture that the limiting groove 62 of its front end embedding plug body 6 front ends and outer rim are protruded, the shell fragment limiting groove 82 of plug casing 8 is protruded on both sides, and the rear end is clipped in the bottom position of the limiting groove 62 of plug body 6.

From the above, compare with existing vehicle cigarette lighter in the utility model, have following bright Aobvious advantage: 1), can be suitable for the cigarette lighter socket of various different bores, fuse be embedded in retaining element with Between the conduction column cap, stability is stronger, makes the contact performance of socket and fuse better; 2), originally In the utility model, insulating collar separates brace and spring, and spring is non-conductive; 3), the utility model In, there is various limiting groove, ventilate, the heat that produces in the plug use procedure can give out Remove the fortuitous event of avoiding hyperthermia and superheating to cause; 4), the utility model, by fuse control electricity Stream can bear more than 10 amperes to the electric current below 20 amperes, increases the security of electricity consumption.

Claims

1, big electric current automobile cigarette lighter plug, comprise screw lid and plug casing, it is characterized in that screw lid and plug casing engage cavity of formation, inside cavity is provided with conduction column cap, fuse, retaining element, brace, insulating collar, spring, plug body, the electroconductive elastic sheet that mutual order is linked together; The end that plug casing is connected with screw lid is provided with a pair of shell fragment limiting groove symmetrically; An opening shape limiting groove and a pair of symmetrically limiting groove are arranged on the plug body.

2, big electric current automobile cigarette lighter plug as claimed in claim 1 is characterized in that: described fuse is embedded between retaining element and the conduction column cap.

3, big electric current automobile cigarette lighter plug as claimed in claim 1 is characterized in that: described fuse is for bearing the fuse of big electric current below 20 amperes more than 10 amperes.

4, big electric current automobile cigarette lighter plug as claimed in claim 1, it is characterized in that: described insulating collar is connected brace and separates with spring.

5, big electric current automobile cigarette lighter plug as claimed in claim 1, it is characterized in that: described electroconductive elastic sheet camber, in the aperture that the limiting groove of its front end embedding plug body front end and outer rim are protruded, the shell fragment limiting groove of plug casing is protruded on both sides, and the rear end is clipped in the bottom position of plug body limiting groove.