A kind of digital electric detonator bridge wire bond connected components
Technical field
The present invention relates to priming system manufacturing technology field, particularly a kind of digital electric detonator bridge wire bond connected components.
Background technology
Digital electric detonator comprises shell 1, circuit board 2, bridge silk 3, payment to a porter 4, stopper 5 etc., and accompanying drawing 1 is shown in the signal of its position relationship.Shell is generally metal shell; inside there is circuit board; circuit board is welded with the protection circuit, accumulator, firing circuit, auxiliary circuit etc. of control chip, electronic devices and components composition; bridge silk, payment to a porter lay respectively at the two ends of circuit board; by wire bonds on circuit boards, payment to a porter extends to housing exterior through stopper to bridge silk.
In prior art, bridge silk on the pad of circuit board surface fixed position, realizes the electrical connection with circuit board by wire bonds, therefore wire and circuit board disalignment, and bridge silk and wire are one, namely in same plane, so bridge silk and circuit board disalignment.Application demand determines, shell is elongated, fits in the process of shell at circuit board, due to bridge silk and circuit board disalignment, not easy to operate, and when pushing hard, because active force is eccentric, easily causes device failure, the stability of influential system.
Summary of the invention
In order to solve bridge silk and circuit board disalignment, not easy to operate in assembling process, because active force is eccentric, easily cause the problem of device failure, the invention provides a kind of digital electric detonator bridge wire bond connected components, comprise circuit board, metalwork, bridge silk, wire, described circuit board is designed with the groove mated with metalwork and via hole; Described metalwork is made up of three parts, is concave part, support portion, kink respectively; Matching grooves on described concave part and circuit board; Described bridge silk is connected with wire, and wire is positioned in concave part, by welding, realizes the electrical connection with metalwork; The degree of depth of concave part is, the half of circuit board thickness and wire radius add and; The both sides of described support zone in concave part along wire direction, by the pad of circuit board upper groove along both sides, wire direction, realize the electrical connection with circuit board; Described kink comprises and to be connected with concave part and perpendicular to the parts one of concave part, and the parts two be connected with parts one; Described parts two, through the via hole on circuit board, by welding, realize the electrical connection with circuit board, and by artificial bending, are buckled in back of circuit board.
Groove on described circuit board and via hole, have two respectively; Described metalwork has two; Described wire has two, the two ends of connecting bridge silk.
Groove on described circuit board is rectangular channel; Groove is longitudinally along wire direction, is laterally with wire vertical direction; Side laterally away from via hole overlaps with board edge.
Via hole on described circuit board is rectangle via hole; Via hole is longitudinally along wire direction, is laterally with wire vertical direction; Via hole longitudinal size mates with kink sheet thicknesses, and lateral dimension mates with groove lateral dimension.
Described concave part is semi-cylindrical, and described parts one are the semicircles of mating with semi-cylindrical recesses portion.
Described concave part is U-shaped, and described parts one are the U-shapeds mated with U-shaped concave part.
Described parts two are trapezoidal.
Described metalwork material is steel.
Described metalwork material is copper.
As shown from the above technical solution, the present invention is by increasing a metalwork on circuit boards, circuit board and metalwork realize being electrically connected, metalwork realizes the mode be electrically connected by wire and bridge silk, achieve wire center to overlap with circuit board mid-depth, namely wire is achieved coaxial with circuit board, wire welds in same plane with bridge silk, thus it is coaxial with circuit board to achieve bridge silk, and then when solving bridge silk and circuit board disalignment, not easy to operate in assembling process, because active force is eccentric, easily cause the problem of device failure.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the digital electric detonator composition structural representation that background technology of the present invention is mentioned;
Fig. 2 is the composition schematic diagram of digital electric detonator bridge wire bond connected components of the present invention;
Fig. 3 is circuit board of the present invention, metalwork, the structure of wire and position relationship schematic diagram;
Fig. 4 is structure and the position relationship schematic diagram of circuit board of the present invention and metalwork;
Fig. 5 is the top view of metalwork of the present invention;
Fig. 6 is the side view of metalwork of the present invention;
Fig. 7 is the concave part of metalwork of the present invention is semi-cylindrical front view;
Fig. 8 is the concave part of metalwork of the present invention is the front view of U-shaped;
Fig. 9 is the concave part of metalwork of the present invention is semi-cylindrical, and bridge silk and circuit board realize coaxial schematic diagram;
Figure 10 is the concave part of metalwork of the present invention is U-shaped, and bridge silk and circuit board realize coaxial schematic diagram.
Detailed description of the invention
Fig. 2 is the composition schematic diagram of digital electric detonator bridge wire bond connected components of the present invention.
Described digital electric detonator bridge wire bond connected components, comprises circuit board 21, metalwork 22, bridge silk 23, wire 24.
Fig. 3 is circuit board of the present invention, metalwork, the structure of wire and position relationship schematic diagram.
Circuit board 21 is designed with the groove 211 and via hole 212 that mate with metalwork 22.
Fig. 4 is structure and the position relationship schematic diagram of circuit board of the present invention and metalwork.
Metalwork 22 is made up of three parts, is concave part 31, support portion 32, kink 33 respectively.
Kink 33 comprises and to be connected with concave part 31 and perpendicular to the parts 1 of concave part 31, and the parts 2 332 be connected with parts 1.
Concave part 31 mates with the groove 211 on circuit board 21.
Bridge silk 23 is connected with wire 24, and wire 24 is positioned in concave part 31, by welding, realizes the electrical connection with metalwork 22.
Support portion 32 is positioned at the both sides of concave part 31 along wire 24 direction, by the pad of circuit board 21 upper groove 211 along both sides, wire 24 direction, realizes the electrical connection with circuit board 21.
Parts 2 332, through the via hole 212 on circuit board 21, by welding, realize the electrical connection with circuit board 21, and by artificial bending, are buckled in circuit board 21 back side.
Groove 211 on circuit board 21 and via hole 212, have two respectively; Metalwork 22 has two; Wire 24 has two, the two ends of connecting bridge silk 23.
Groove 211 on circuit board 21 is rectangular channel; Groove 211 is longitudinally along wire 24 direction, is laterally with wire 24 vertical direction; Laterally away from side and circuit board 21 coincident of via hole 212.
Via hole 212 on circuit board 21 is rectangle via hole; Via hole 212 is longitudinally along wire 24 direction, is laterally with wire 24 vertical direction; Via hole 212 longitudinal size mates with parts 2 332 sheet thicknesses of kink 33, and lateral dimension mates with groove 211 lateral dimension.
Fig. 5 is the top view of metalwork of the present invention.
Fig. 6 is the side view of metalwork of the present invention.
Concave part 31 is semi-cylindrical, and described parts 1 are the semicircles of mating with semi-cylindrical recesses portion 31.
Fig. 7 is the concave part of metalwork of the present invention is semi-cylindrical front view.
Described concave part 31 is U-shapeds, and described parts 1 are the U-shapeds mated with U-shaped concave part 31.
Fig. 8 is the concave part of metalwork of the present invention is the front view of U-shaped.
Described parts 2 332 are trapezoidal.
Described metalwork 22 material is steel.
Described metalwork 22 material is copper.
Fig. 9 is the concave part of metalwork of the present invention is semi-cylindrical, and bridge silk and circuit board realize coaxial schematic diagram.
Figure 10 is the concave part of metalwork of the present invention is U-shaped, and bridge silk and circuit board realize coaxial schematic diagram.
The degree of depth of concave part 31 is, the half of circuit board 21 thickness and wire radius add and.
As shown from the above technical solution, the present invention is by increasing a metalwork on circuit boards, circuit board and metalwork realize being electrically connected, metalwork realizes the mode be electrically connected by wire and bridge silk, achieve wire center to overlap with circuit board mid-depth, namely wire is achieved coaxial with circuit board, wire welds in same plane with bridge silk, thus it is coaxial with circuit board to achieve bridge silk, and then when solving bridge silk and circuit board disalignment, not easy to operate in assembling process, because active force is eccentric, easily cause the problem of device failure.