After-loading bridge-wire protective sleeve

A technology of protective sleeve and bridge wire, which is applied in the field of post-loading bridge wire protective sleeve, which can solve the problem of easy damage of bridge wire and achieve the effect of convenient drug application operation

Active Publication Date: 2012-06-13
保融盛维(沈阳)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the bridge wire is easily damaged during production and transportation, the present invention provides a protective cover for the post-loaded bridge wire. The protective cover includes a shell and a metal sheet; On the circuit board, the other end is open for bridge wire application; the metal sheets have two pairs, and the two metal sheets of each pair are respectively located at the corresponding positions on the upper and lower inner surfaces

Method used

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  • After-loading bridge-wire protective sleeve
  • After-loading bridge-wire protective sleeve
  • After-loading bridge-wire protective sleeve

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Embodiment Construction

[0017] Such as figure 2 Shown is a perspective view of the front of the protective cover of the present invention.

[0018] The protective cover includes a shell and a metal sheet.

[0019] Such as image 3 Shown is a perspective view of the back of the protective cover of the present invention.

[0020] Both ends of the shell are open, one end is open to cover the circuit board, and the other end is open for the bridge wire to apply medicine.

[0021] Such as Figure 4 Shown is a cross-sectional view of the protective sleeve of the present invention.

[0022] There are two pairs of metal sheets, and the two metal sheets of each pair are respectively located at corresponding positions on the upper and lower inner surfaces of the casing.

[0023] Such as Figure 5 Shown is a schematic diagram of the corresponding relationship between the metal sheet and the circuit board contained in the protective case of the present invention.

[0024] One end of the metal sheet is co...

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Abstract

The invention discloses an after-loading bridge-wire protective sleeve. The after-loading bridge-wire protective sleeve comprises a housing and two pairs of metal sheets. The housing has two open ends, wherein one of the open ends is sleeved on a circuit board and the other is utilized for bridge-wire coating. Two of each pair of the metal sheets are respectively arranged at corresponding positions of upper and lower inner surfaces of the housing. One end of each one of the metal sheets is connected to the inner surface of the housing and the other end of the one is provided with a reverse bayonet for locking the circuit board. The circuit board is provided with holes corresponding to the reverse bayonets. The metal sheets are elastic. The distance between the two of each one pair of the metal sheets is less than the thickness of the circuit board. When the housing is sleeved on the circuit board, two pairs of the metal sheets are expanded so that the reverse bayonets are pushed into the holes of the circuit board.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics, in particular to a protective sleeve for aftercharged bridge wires. Background technique [0002] The digital electronic detonator includes shell 1, circuit board 2, bridge wire 3, foot wire 4, plug 5, etc., and its positional relationship is attached figure 1 . The shell is generally a metal shell with a circuit board inside. The circuit board is welded with a control chip, a protection circuit composed of electronic components, an energy storage circuit, an ignition circuit, and an auxiliary circuit. At the end, the bridge wire is welded on the circuit board through the wire, and the foot wire extends through the plug to the outside of the shell. [0003] The production of digital electronic detonators includes multiple processes. Only after the bridge wire welding is completed, it must go through multiple processes such as testing, coating, and assembly. The industrial production proce...

Claims

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Application Information

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IPC IPC(8): F42C19/12
Inventor 李长军李代万王大志赵玉静
Owner 保融盛维(沈阳)科技有限公司
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