CN206116666U - Alligator clip for car starting power supply voltage detection with pull-off function - Google Patents

Abstract

The utility model aims at providing an automobile starting power supply voltage detection crocodile clip with a pull-out function, which comprises an anode crocodile clip structure; a negative crocodile clip structure; a contact male; the positive electrode breaking end and the negative electrode breaking end are arranged on the contact male head; anodal crocodile presss from both sides the structure with negative pole crocodile presss from both sides the structure the same, by upper cover, upper cover contact piece, pull out disconnected spring, lower cover contact piece, lower cover and go up lower cover pressure spring and constitute, the upper cover contact piece passes through contact piece silica gel connection with the lower cover contact piece, is equipped with the lower cover contact piece on the lower cover, is equipped with insulating interlayer on the lower cover contact piece, is equipped with on the insulating interlayer to pull out disconnected spring, is equipped with on the pull out disconnected spring to pull out disconnected contact piece, and outer silica gel line is gone into interior silica gel line cover through inside cover silica gel line technology, pulls out disconnected contact piece and is connected to anodal disconnected sense terminal or negative pole through interior silica gel line.

Description

Alligator clip for car starting power supply voltage detection with pull-off function

technical field

The utility model relates to the technical field of crocodile clips, in particular to a crocodile clip for detecting the voltage of an automobile starting power supply with an automatic disconnection function.

Background technique

With the continuous development of automobile technology, the automobile power supply device has become increasingly mature, but in order to ensure the safety of the automobile starting power supply, it is necessary to use connection terminals between the connection ends. After the installation of equipment, cable wiring, and crimping of terminals, all The cables and terminals are detected to achieve the function of automatic disconnection. However, in the current technology, if the clip accidentally touches the vehicle body, it will cause a short circuit, generate a large spark, cause the product body or the vehicle to report damage, and bring great difficulties to the detection.

Utility model content

The purpose of this utility model is to provide a kind of crocodile clip for detecting the voltage of the starting power supply of a car with a pull-off function, which is characterized in that it includes

A positive alligator clip structure;

A negative alligator clip structure;

a contact with the male head;

The positive pull-out end and the negative pull-out end set on the contact male head;

The structure of the positive crocodile clip is the same as that of the negative crocodile clip, both of which are composed of an upper cover, an upper cover contact piece, a pull-off contact piece, a pull-off spring, a lower cover contact piece, a lower cover, and an upper and lower cover pressure spring. The contact piece of the upper cover is connected with the contact piece of the lower cover through the silicone wire of the contact piece, the contact piece of the upper cover is fixed in the upper cover through the fixing screws of the upper cover, the lower cover is provided with the contact piece of the lower cover, and the contact piece of the lower cover is provided with an insulating interlayer , the insulating interlayer is provided with a pull-off spring, and the pull-off spring is provided with a pull-off contact piece, and the pull-off contact piece, the pull-off spring, the insulating interlayer, and the lower cover contact piece are sequentially fixed in the lower cover by the fixing screws of the lower cover;

The outer silicone wire is inserted into the inner silicone wire through the inner silicone wire process, and the pull-off contact piece is connected to the positive pull-off detection terminal or the negative pull-off detection end through the inner silicone wire.

The male contact head, the disconnection detection terminal and the negative electrode disconnection detection terminal are wrapped together by encapsulation.

A compression spring is arranged between the upper cover and the lower cover.

The utility model has the following advantages:

1. This clip is a new function of automatic disconnection of the car battery voltage detection inside the car starter power supply.

2. The main silicone wire adopts: the silicone wire is covered with a silicone wire technology.

3. After the car starting power supply is properly connected with the car battery, this clip will notify the host to turn on the internal output in order to start the car. If any clip falls off, the internal output will be automatically turned off to ensure that the clip is not charged in the idle state, which greatly improves the safety and reliability of the starting power supply.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the explosive structure schematic diagram of the present utility model;

Fig. 3 is the structure diagram of the utility model assembled positive alligator clip structure or negative alligator clip structure;

Fig. 4 is a schematic diagram of the circuit principle of the utility model.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the utility model are used to explain the utility model, but not as a limitation to the utility model.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the purpose of this utility model is to provide a kind of alligator clip for detecting the voltage of the starting power supply of a car with a pull-off function, including

A positive alligator clip structure A;

A negative alligator clip structure B;

One contact male head 20;

The pull-out end 21 and the negative pull-out end 22 arranged on the contact male head 20;

The structure of the positive crocodile clip structure A and the negative crocodile clip structure are the same, both consisting of a loam cake 1, a loam cake contact piece 2, a pull-off contact piece 5, a pull-off spring 6, a lower cover contact piece 8, a lower cover 9 and an upper and lower The cover pressure spring 10 is composed of the upper cover contact piece 2 and the lower cover contact piece 8 through the contact piece silicone wire 12, the upper cover contact piece 2 is fixed in the upper cover 1 through the upper cover fixing screw 3, and the lower cover 9 is provided with There is a lower cover contact piece 8, the lower cover contact piece 8 is provided with an insulating interlayer 7, the insulating interlayer 7 is provided with a pull-off spring 6, and the pull-off spring 6 is provided with a pull-off contact piece 5, the pull-off contact piece 5 , pulling off the spring 6, the insulating interlayer 7, and the lower cover contact piece 8 are fixed in the lower cover 9 through the lower cover fixing screw 4 in turn;

The outer silicone wire 13 is inserted into the inner silicone wire 11 through the inner silicone wire process, and the pull-out contact piece 5 is connected to the positive pull-off detection end 21 or the negative pull-off detection end 22 through the inner silicone wire 11 .

The contact male head 20 , the disconnection detection terminal 21 and the negative electrode disconnection detection terminal 22 are packaged together by the encapsulation 19 .

A pressure spring 10 is arranged between the upper cover 1 and the lower cover 9 .

When it is working, first check whether the connection of the positive and negative detection terminals is in good contact and whether the positive and negative terminals are connected incorrectly. When ready, connect the detection terminal to the battery, and the detection terminal respectively enters a 12V voltage input to the quick plug. The electrical connector is connected to the clamp removal detection unit through the electrical connector of the quick plug, and a signal mode is set at the output end of the battery and the input end of the electrical connector of the quick plug. Pulling off the contact piece 5 can detect that the battery voltage signal is transmitted to the host by contacting with the automobile battery, and the host chip can judge whether to need switching power supply by whether it is in contact with the positive and negative poles of the battery. In order to prevent misjudgment of the main engine, the insulating interlayer is used to insulate between the pull-off contact piece and the upper and lower cover contact pieces. The output working time of the contact sheet is correct.

Its working circuit principle is shown in Figure 4. In the figure, EC5 is the circuit diagram of the electrical connector of the quick plug, and EC6 is the circuit diagram of the clamp detection unit removed.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (3)

1. The alligator clip for detecting the voltage of the car starting power supply with a pull-off function is characterized in that it includes A positive alligator clip structure; A negative alligator clip structure; a contact with the male head; The positive pull-out end and the negative pull-out end set on the contact male head; The structure of the positive crocodile clip is the same as that of the negative crocodile clip, both of which are composed of an upper cover, an upper cover contact piece, a pull-off contact piece, a pull-off spring, a lower cover contact piece, a lower cover, and an upper and lower cover pressure spring. The contact piece of the upper cover is connected with the contact piece of the lower cover through the silicone wire of the contact piece, the contact piece of the upper cover is fixed in the upper cover through the fixing screws of the upper cover, the lower cover is provided with the contact piece of the lower cover, and the contact piece of the lower cover is provided with an insulating interlayer , the insulating interlayer is provided with a pull-off spring, and the pull-off spring is provided with a pull-off contact piece, and the pull-off contact piece, the pull-off spring, the insulating interlayer, and the lower cover contact piece are sequentially fixed in the lower cover by the fixing screws of the lower cover; The outer silicone wire is inserted into the inner silicone wire through the inner silicone wire process, and the pull-off contact piece is connected to the positive pull-off detection terminal or the negative pull-off detection end through the inner silicone wire. 2. The car starting power supply voltage detection alligator clip with unplugging function according to claim 1, characterized in that, the contact pin, the positive pull-off detection end and the negative pull-off detection end wrap the three with glue together. 3. The alligator clip for detecting the voltage of an automobile starting power supply with a pull-off function according to claim 1, wherein a pressure spring is arranged between the upper cover and the lower cover.