CN2774085Y

CN2774085Y - Trap shell splinter

Info

Publication number: CN2774085Y
Application number: CN 200520003456
Authority: CN
Inventors: 骆旭盈
Original assignee: Jiadelong Science & Technology Co Ltd
Current assignee: Laird Technologies Inc
Priority date: 2005-01-13
Filing date: 2005-01-13
Publication date: 2006-04-19
Anticipated expiration: 2015-01-13

Abstract

The utility model provides a trap shell splinter with a wire fixing function, which comprises splinter sections, fixing sections, a line resistor part, a line inlet, a line placing slot, etc. The different splinter sections are connected in arced bend, and are jointly surrounded to form a line fixing space for containing cables and a quadrilateral trap shell splinter assembly of which the side surface is provided with a gap. The line inlet is formed into a reverse hook-shaped cable blocking part by the line resistor part and the splinter sections, which avoids the cables to falling off. Thus, the cables which are imbedded are fixed. The trap shell splinter of the utility model is provided with the line resistor part which is designed into a circular arc and more than two welding surfaces, and the splinter sections can contact to an electronic circuit to form an earthing end. Thus, electromagnetic and electrostatic interference for the electronic circuit can be reduced.

Description

Trap shell splinter

Technical field

The utility model system relates to a kind of Trap shell splinter, especially mean a kind of shell fragment that solidus and grounding function are arranged on the printed circuit board (PCB) that is welded in, outside the firm performance solidus function of Trap shell splinter decapacitation, ground termination points is increased, reduce electronic loop suffered electromagnetic radiation and electrostatic interference.

Background technology

The fast development of electronic industry, printed circuit board in the electronic product is also because of the increase in assembly and loop, the line density of circuit-board laying-out becomes closeer, the relative interference that electronic loop sent or received is also increased day by day, hereat, earth point must be set in position, to improve this problem.

Another demand of electronic product (for example notebook) be within it portion except that sub-circuit board, still need and to dispose many electric wires, so that for example electronic component such as loudspeaker to be installed, and these must be fixed with the solidus assembly at the inner electric wire that extends of electronic product, in order to avoid harm the assembling and the maintenance of product.

Known solidus mode has unsettled and fixes two kinds, and the function of the most similar cable strap of unsettled mode provides the solidus effect, and its effect usually only can be with many cable ties being aligned cable bundles; And the solidus assembly of fixed form, the cemented solidus assembly of mode that adopts gluing mostly is on the wall of the inside of electronic product; And owing to electronic product day be tending towards miniaturization, thereby reduce day by day in the inner available space of product, thereby to being located at the solidus assembly of diverse location, different size restrictions is often arranged, make the dealer be necessary for the solidus assembly that identical product is prepared different size, different external forms respectively, this will certainly cause the increase of ultimate cost.Then be to be fixed on the printed circuit board (PCB) in order to the grounding assembly that solves electromagnetic interference as described above simultaneously, and the particular fixed point on the printed circuit board (PCB) is fixed and be contacted with to modes such as utilization welding or fixing.Because solidus assembly and grounding assembly must be made respectively and assemble in the known techniques, therefore production cost will be improved relatively, in view of this, the utility model promptly is to provide a kind of can significantly reducing production costs, and the solidus assembly of ground connection and solidus function can be provided simultaneously.

Summary of the invention

The purpose of the utility model is to provide a kind of Trap shell splinter with grounding function, can provide the purpose again of function the utility model of fixed cable and earth-continuity to be to provide a kind of line resistance part framework of tool arc modeling design simultaneously, when making cable push into line inlet port not by the scratch of line resistance part institute, and when cable is fixedly arranged in trunking, can reach firm solidus effect because of the effect of the line resistance part of arc modeling performance barb, avoid cable to get loose and drop out outside the Trap shell splinter.

The purpose of this utility model realizes by following technical method: the printed circuit board (PCB) that is provided with the Trap shell splinter of the utility model can make circuit have better anti-interference because of more ground termination points is arranged, thereby reduction electromagnetic radiation and electrostatic interference are to the influence of circuit signal.

And the use of Trap shell splinter can replace grounding assembly and the solidus assembly that in the past was provided with respectively simultaneously on printed circuit board (PCB), can reduce production costs.

Therefore, the utility model system provides a kind of Trap shell splinter that improves printed circuit ground connection situation, compared to known techniques, its advantage of the disclosed Trap shell splinter of the utility model shows: Trap shell splinter can provide two faces above solid welding face, can allow the user comply with its space requirement and do suitable adjustment; It is circular-arc that two of the utility model characteristics are that the line resistance part is designed to, and makes cable when pushing line inlet port, can not make the cable outer surface by the scratch of line resistance part institute, and coming off of cable can also be avoided in these line resistance parts.

Description of drawings

Figure one is the schematic diagram of first embodiment of the utility model Trap shell splinter

Figure two is that Trap shell splinter shown in figure one is with the schematic diagram of its 3rd shell fragment section solid welding when the circuit board

Figure three is that Trap shell splinter shown in figure one is with the schematic diagram of its second shell fragment section solid welding when the circuit board

Figure four is that Trap shell splinter shown in figure one is with the schematic diagram of its first shell fragment section solid welding when the circuit board

Figure five is the schematic diagram of the utility model Trap shell splinter second embodiment

Figure six is that Trap shell splinter shown in figure five is with the schematic diagram of its extension solid welding when the circuit board

Figure seven is that Trap shell splinter shown in figure five is with the schematic diagram of its 3rd shell fragment section solid welding when the circuit board

Figure eight is that Trap shell splinter shown in figure five is with the schematic diagram of its second shell fragment section solid welding when the circuit board

Embodiment

Shown in figure one, be first preferred embodiment of the Trap shell splinter 10 of the utility model, Trap shell splinter 10 has the first shell fragment section 101, the second shell fragment section 102, the 3rd shell fragment section 103, the 4th shell fragment section 104, line resistance part 105,106, line inlet port 107 and trunking 108.

Line inlet port 107 both sides are constituted by line resistance part 105 and line resistance part 106, line resistance part 105 is connected in the 4th shell fragment section 104, the 4th shell fragment section 104 is to be 90 degree to be connected in the first shell fragment section 101, and the first shell fragment section 101 is extended the second shell fragment section 102 via one 90 degree turnover again; The second shell fragment section 102 also is connected to the 3rd shell fragment section 103 via the turnover of one 90 degree afterwards, last the 3rd shell fragment section 103 then extends to terminal line resistance part 106 again, and stay a line inlet port 107 between

online resistance part

106 and 105, form a tetragonal Trap shell splinter 10 that has a breach in a side, and make the cable 12 can be among trunking 108 is sent in pushing via line inlet port 107.

As shown in figure two and figure three, when Trap shell splinter 10 of the present utility model is that welding edge is when being welded on the circuit board 13 with its 3rd shell fragment section 103 or the second shell fragment section 102, line resistance part 105 will be connected in the first shell fragment section 101 through 90 degree turnovers after will linking the 4th shell fragment section 104 again, at this moment, elasticity arm of force when the first shell fragment section 101 and the 4th shell fragment section 104 will become 105 distortion of line resistance part, and Trap shell splinter becomes and has more elasticity, allow cable 12 can be pushed in the trunking 108 more easily, and after cable 12 was placed into, 104 formation of line resistance part 105 and the 4th shell fragment section one were barb-like to stop cable 12 to come off from Trap shell splinter 10.

Line resistance part 105 and line resistance part 106 are designed to circular-arc, to make things convenient for cable 12 to slip in the trunking 108, and because the arc modeling of line resistance part 105 and line resistance part 106, can make cable 12 appearances can be in bulged-in process by 106 scratches in line resistance part 105 and line resistance part.

As shown in figure two, three and four, Trap shell splinter 10 of the present utility model can be optionally with the first shell fragment section 101, the second shell fragment section 102 or the 3rd shell fragment section 103 as welding edge, and do affixed with circuit board 13.Elasticity in this assembling can make the utility model be applicable in the different steric requirementss, reduce number of spare parts, permit ease of administration and assembling and then the purpose that reduces production costs and reach.

Shown in figure five, second preferred embodiment for the utility model, Trap shell splinter 20 is made of the first shell fragment section 201, the second shell fragment section 202, the 3rd shell fragment section 203, the 4th shell fragment section 204, extension 205, line resistance part 206, line inlet port 207, first bending segment 209 and second bending segment 210 in the present embodiment, and forms a trunking 208 in Trap shell splinter 20.

Different with first embodiment is, extend first bending segment 209 in the 4th shell fragment section 204 of second embodiment away from an end of the 3rd shell fragment section 203, and have an extension 205 thus first bending segment 209 extend in parallel towards bearing of trend in contrast to the 3rd shell fragment section 203, end in this extension 205 then further extends one second bending segment 210, to be connected between the 3rd shell fragment section 203 and the 4th shell fragment section 204.

Shown in figure six, seven and eight, in the present embodiment, Trap shell splinter 20 can be that welding edge is welded on the circuit board 23 with the second shell fragment section 202, the 3rd shell fragment section 203 and extension 205 optionally equally, therefore need only the different length of sides of suitable control Trap shell splinter 20, promptly can be applicable in the different spaces of electronic product inside with same shell fragment.

Extension 205 in the present embodiment can be used as the welding edge of circuit board 23, also can be used as the contact edge that connects with grounding path (for example metallic magnetism of electronic product), and via the curved arc radius of controlling first kink 209, can further control the size of the extension 205 of Trap shell splinter 20 to the second relative shell fragment section 202, thereby can effectively be useful in the environment of different size demand, simultaneously when being contact edge with extension 205, the contact pressure of this contact edge of control that also can be suitable.

Claims

1. Trap shell splinter, system is made by a rubber-like tablet, have a plurality of shell fragment bullets that link by kink, it is characterized in that: it has two line resistance parts that are arranged at the end of two shell fragment sections and are circular arc, and between two line resistance parts, have a gap, can insert by aforesaid a plurality of shell fragment sections for cable and be surrounded among the trunking that forms.。

2. a kind of according to claim 1 Trap shell splinter is characterized in that: the material of wherein said Trap shell splinter is a metal material.

3. a kind of according to claim 1 Trap shell splinter is characterized in that: wherein said Trap shell splinter has at least three shell fragment sections.

4. as a kind of Trap shell splinter as described in claim 1 or 3, it is characterized in that: wherein each shell fragment Duan Jun is connected, and the gaps between two resistance line portions then form a line inlet port.

5. a kind of according to claim 1 Trap shell splinter, it is characterized in that: wherein said Trap shell splinter tool at least can smoothly be arranged at the shell fragment section on the plane of circuit board in shape more than two, utilize welding or fix described shell fragment section, Trap shell splinter optionally can be fixed on the circuit board.

6. a kind of according to claim 1 Trap shell splinter, it is characterized in that: the end of wherein said Trap shell splinter at least one shell fragment section at least is provided with a kink, and have an extension to stretch a specific range towards the direction of extending in contrast to aforementioned shell fragment section by described kink, and make the body of the relative Trap shell splinter of described extension have preferable elasticity.

7. a kind of Trap shell splinter as claimed in claim 6 is characterized in that: wherein via the crooked process radius of the described kink of control, can control the overall dimensions of Trap shell splinter.