CN216308785U - Terminal structure of electronic detonator ignition element - Google Patents

Abstract

The utility model provides a terminal structure of an ignition element of an electronic detonator, which comprises a substrate, a first terminal pin and a second terminal pin. The first terminal pin and the second terminal pin are obliquely provided with a first positioning piece and a second positioning piece. The inclination directions of the first positioning piece and the second positioning piece are opposite and the extension lines of their top ends intersect. By arranging a first positioning piece and a second positioning piece with opposite inclined directions on the first terminal foot and the second terminal foot, the first positioning piece and the second positioning piece are formed after injection molding on the first terminal foot and the second terminal foot. The packaging plastic body on the positioning sheet, the first positioning sheet and the second positioning sheet can be used as the supporting frame of the packaging plastic body. Since the first positioning sheet and the second positioning sheet are inclined in opposite directions, it can effectively prevent the packaging plastic body and the second positioning sheet. The horizontal and vertical offsets occur between the first terminal foot and the second terminal foot, and the structural strength is high, which can ensure the stable assembly of the terminal and the encapsulated plastic body, improve product quality, and avoid squib failure.

Description

An electronic detonator ignition element terminal structure

technical field

The utility model relates to a patch bridge wire, in particular to a terminal structure of an ignition element of an electronic detonator.

Background technique

An electronic detonator is an electronic product that uses an electronic control module to control the detonation process, and the ignition element welds the bridge wire on the two terminal pins, and after power-on, the bridge wire is heated to achieve the purpose of detonating the detonator, which is often used in electronic detonators. superior. The ignition element is mainly composed of a terminal and an encapsulated plastic body. By injecting the terminal on the encapsulated plastic body, the terminal is fixed on the encapsulated plastic body, and then the ignition element is connected to the circuit board of the electronic detonator.

The existing ignition element lacks a positioning structure between the terminal and the encapsulated plastic body, and the phenomenon of offset and slippage between the terminal and the encapsulated plastic body is prone to occur, resulting in a short circuit between the two terminals, resulting in a malfunction of the squib during the detonation process, which affects the electronic detonator. Normal use.

SUMMARY OF THE INVENTION

The problem to be solved by the utility model is to provide a terminal structure of an ignition element of an electronic detonator, which increases the positioning structure between the terminal and the encapsulated plastic body, improves product quality, and ensures stable operation of the ignition element.

To solve the above-mentioned technical problems, the utility model provides a terminal structure of an electronic detonator ignition element, which includes a substrate, a first terminal pin and a second terminal pin arranged on the substrate, and one of the first terminal pin and the second terminal pin. A first locating piece and a second locating piece are inclined on both sides, and the first locating piece and the second locating piece are inclined in opposite directions and their top extension lines intersect.

Preferably, the first positioning piece and the second positioning piece are arranged along the length direction of the first terminal pin and the second terminal pin.

Preferably, both the first positioning piece and the second positioning piece are arranged on the inner side surfaces of the first terminal pin and the second terminal pin, and the outer side surfaces of the first positioning piece and the second positioning piece are both provided with positioning grooves.

Preferably, a plurality of notches are provided on the outer sides of the first terminal pin and the second terminal pin.

Preferably, the heights of the first positioning piece and the second positioning piece are a, b, respectively, a>b.

The beneficial effects of the utility model are as follows: the utility model provides an electronic detonator ignition element terminal structure, which is provided with a unique assembly structure. Two positioning pieces, the top extension lines of the first positioning piece and the second positioning piece intersect, and the plastic packaging body covering the first positioning piece and the second positioning piece is formed after injection molding on the first terminal pin and the second terminal pin. A locating piece and a second locating piece can be used as the supporting frame of the encapsulating plastic body. Since the first locating piece and the second locating piece are inclined in opposite directions, the encapsulating plastic body is effectively prevented from being connected to the first and second terminal pins. There is a horizontal and vertical offset between them, and its structural strength is high, which can ensure the stable assembly of the terminal and the packaging plastic body, improve product quality, and avoid squib failure.

Description of drawings

Figure 1 illustrates a schematic diagram of the external structure of the present invention.

Figure 2 illustrates a right side view of the present invention.

DESCRIPTION OF REFERENCE NUMERALS: substrate 1 , first terminal pin 2 , notches 20 , second terminal pin 3 , first positioning piece 4 , positioning groove 40 , second positioning piece 5 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, embodiments of the present disclosure.

Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Refer to Figures 1-2.

The utility model provides a terminal structure of an ignition element of an electronic detonator, which comprises a substrate 1, a first terminal pin 2 and a second terminal pin 3 arranged on the substrate 1, and one of the first terminal pin 2 and the second terminal pin 3. A first positioning piece 4 and a second positioning piece 5 are provided on both sides obliquely. The inclined directions of the first positioning piece 4 and the second positioning piece 5 are opposite and their top extension lines intersect.

The specific use principle is: by arranging the first positioning piece 4 and the second positioning piece 5 with opposite inclination directions on the first terminal pin 2 and the second terminal pin 3, the top ends of the first positioning piece 4 and the second positioning piece 5 are extended. The lines intersect, the first terminal pin 2 and the second terminal pin 3 are injection-molded to form an encapsulated plastic body covering the first positioning piece 4 and the second positioning piece 5, and the substrate 1 can be removed from the encapsulated plastic body after molding. The roots of the first terminal pin 2 and the second terminal pin 3 are cut off. The first positioning piece 4 and the second positioning piece 5 can be used as the support frame of the encapsulated plastic body. Since the first positioning piece 4 and the second positioning piece 5 are inclined in opposite directions, the encapsulation plastic body and the first terminal pins are effectively prevented 2 and the second terminal pin 3 are laterally and longitudinally offset, and its structural strength is high, which can ensure the stable assembly of the terminal and the encapsulated plastic body, improve product quality, and avoid squib failure.

Based on the above embodiment, the first positioning piece 4 and the second positioning piece 5 are arranged along the length direction of the first terminal pin 2 and the second terminal pin 3, which can reduce the volume of the encapsulating plastic body and strengthen the first positioning piece 4 and the second positioning piece 5. The positioning effect of the two positioning pieces 5 on the packaged plastic body improves the assembly stability.

Based on the above embodiment, the first positioning piece 4 and the second positioning piece 5 are both arranged on the inner side of the first terminal pin 2 and the second terminal pin 3 , and the outer side of the first positioning piece 4 and the second positioning piece 5 are both arranged There is a positioning groove 40. During injection molding, the packaging plastic body is combined with the positioning groove 40 to further improve the positioning effect of the first positioning sheet 4 and the second positioning sheet 5 on the packaging plastic body, which can reduce the volume of the packaging plastic body and improve the assembly stability. .

Based on the above embodiment, a plurality of notches 20 are provided on the outer surfaces of the first terminal pin 2 and the second terminal pin 3 . When assembling the assembled ignition element on the circuit board of the electronic detonator, by setting the gap 20, it is convenient to climb tin during the patch welding process, increase the welding connection points, improve the welding quality, and facilitate the welding quality inspection.

Based on the above embodiment, the heights of the first positioning piece 4 and the second positioning piece 5 are a, b, respectively, a>b. By setting the first positioning piece 4 and the second positioning piece 5 with different heights, the top ends of the first positioning piece 4 and the second positioning piece 5 are dislocated, which facilitates the injection molding of the encapsulated plastic body, and improves the first positioning piece 4 and the second positioning piece 5. The positioning effect of the two positioning pieces 5 on the packaged plastic body improves the assembly stability.

The above embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, ordinary engineers and technicians in the field make the technical solutions of the present invention. Various deformations and improvements should fall within the protection scope determined by the claims of the present utility model.

Claims (5)

1. An electronic detonator ignition element terminal structure, comprising a substrate (1), a first terminal pin (2) and a second terminal pin (3) arranged on the substrate (1), wherein the A first positioning piece (4) and a second positioning piece (5) are obliquely provided on one side of the first terminal pin (2) and the second terminal pin (3), and the first positioning piece (4) It is opposite to the inclination direction of the second positioning piece (5) and its top extension line intersects. 2. An electronic detonator ignition element terminal structure according to claim 1, characterized in that the first positioning piece (4) and the second positioning piece (5) are along the first terminal pins ( 2) and the length direction of the second terminal pin (3). 3. An electronic detonator ignition element terminal structure according to claim 2, characterized in that both the first positioning piece (4) and the second positioning piece (5) are arranged on the first terminal pin (2) The inner sides of the second terminal pins (3), and the outer sides of the first positioning piece (4) and the second positioning piece (5) are provided with positioning grooves (40). 4. An electronic detonator ignition element terminal structure according to claim 3, characterized in that, several notches ( 20). 5. An electronic detonator ignition element terminal structure according to claim 4, characterized in that the heights of the first positioning piece (4) and the second positioning piece (5) are a, b, a respectively >b.

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