CN102176547A - Grounding device for braid shielded cable - Google Patents
Grounding device for braid shielded cable Download PDFInfo
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- CN102176547A CN102176547A CN2011100031716A CN201110003171A CN102176547A CN 102176547 A CN102176547 A CN 102176547A CN 2011100031716 A CN2011100031716 A CN 2011100031716A CN 201110003171 A CN201110003171 A CN 201110003171A CN 102176547 A CN102176547 A CN 102176547A
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- braided shield
- blade
- shield cable
- earthing device
- receiving slit
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Abstract
The invention discloses a grounding device for a braid shielded cable, which comprises a receiving part and a grounding part, wherein the receiving part comprises a first receiving groove used for accommodating a braid shielded cable; the grounding part is rotatably connected with the receiving part, and comprises a grounding component, a second receiving groove and a puncture unit which is arranged on the second receiving groove and is electrically connected with the grounding component; the puncture unit is provided with at least a blade, and the blade is vertical to the axis of the second receiving groove. The grounding device provided by the invention not only can effectively puncture the insulating sheath of the cable and keep good contact with an outer conductor, but also can prevent the outer conductor from being punctured or damaged, thus realizing well grounding of the braid shielded cable.
Description
Technical field
The present invention relates to the cable grounding device, more specifically, relate to a kind of earthing device that is used for braided shield cable.
Background technology
Braided shield cable can be kept apart inner cable core and external signal owing to the shielding action of wire sheathing, but therefore the radiation of block electromagnetic interfering energy has been widely used in fields such as communication, control system, electric equipment, automatics.As shown in Figure 1, braided shield cable mainly is made up of insulating sleeve 1, wire sheathing 2, insulating barrier 3 and a plurality of cable core 5 that is enclosed with insulating barrier 4.In the middle of using, need carry out the ground connection operation to braided shield cable, specifically be to carry out ground connection by wire sheathing 2 made of copper, with in time the electromagnetic interference energy leakage to the earth.As shown in Figure 2, when carrying out the operation of this ground connection, adopt earlier usually the insulating sleeve 1 of cable is peeled off, the artificially outer conductor that utilizes clay, adhesive tape to be fastened on braided shield cable earthing device 6 is that mode on the wire sheathing 2 is carried out ground connection then.This mode is not only time-consuming, and needs a large amount of instruments, installation cost height.
Publication number is CN101548435A, and denomination of invention discloses a kind of device electrical ground that is used for insulated cable of avoiding above-mentioned need in advance to peel off SI semi-insulation sheath step for the Chinese patent application of " device electrical ground that is used for insulated cable ".This device comprises receiver and decline unit, and receiver is used to receive the ccontaining cable that needs ground connection, and the decline unit pivotally connected with receiver comprises earthing member and the sting device that is connected with this earthing member.This sting device comprises two cutters, each cutter has blade, and be positioned on the bottom of this decline unit, thereby, when in the decline unit be equipped with when rotating between the receiver of cable, each cutter insulation-piercing sheath enters cable, and forms with the cable conductor inside and to contact, thereby needn't before making cable grounding, come cable is carried out preliminary treatment by for example peeling off steps such as sheath.
Yet this device is only applicable to not have the insulated cable of metallic shield mesh grid.Because of braided shield cable is compared comparatively softness of insulated cable, and its outer conductor is metal knitted net, easy deformation during stressed extruding, therefore when using this device that braided shield cable is carried out the ground connection operation, the power that the sting device of decline unit and receiver apply braided shield cable causes metal knitted net and inner cable core stress deformation easily, this distortion is difference along with the difference of braided shield cable cutting point, therefore, blade incision back keeps relatively difficulty of good electrical contact with metal knitted net, thereby can not reach the purpose of good earth.So this device is suitable for the ground connection operation is not carried out in the metallic shield mesh grid.
Summary of the invention
Purpose of the present invention is to provide a kind of earthing device that is used for braided shield cable, thereby makes it in application, can realize effectively that the braided shield cable outer conductor is the good earth of metal knitted net, simultaneously, can guarantee again outer conductor not to be punctured or damages.
The earthing device that is used for braided shield cable of the present invention comprises: receiving unit, and it comprises first receiving slit that is used for ccontaining described braided shield cable; And grounded part, itself and described receiving unit are rotationally connected, comprise earthing member, second receiving slit and be arranged on this second receiving slit and the sting device that is electrically connected with described earthing member, wherein, described sting device is provided with at least one blade, and the axis normal of described blade and described second receiving slit.
Preferably, described sting device is provided with two blades that are parallel to each other.
Preferably, described first receiving slit takes the shape of the letter U, and its width is more smaller than the external diameter of described braided shield cable.
Preferably, described blade is that medial surface is that plane, lateral surface are that single-edge blade or the described blade that has a blade face of inclination is the double-edged razor blade that medial surface and lateral surface all have the blade face of inclination.
Preferably, described receiving unit has first pivot connection, described grounded part has second pivot connection, described first pivot connection is provided with the storage tank of ccontaining described second pivot connection, described storage tank is provided with two first holes, the pivot connection of described grounded part is provided with two second holes corresponding respectively with described first hole, and described first hole is connected by pivoted with second hole corresponding with it.The insertion end of described pivot is a claw type.
Preferably, when described earthing device was in closure state, the distance between the bottom of described first receiving slit and second receiving slit was equal to or slightly less than the external diameter of described braided shield cable.
Preferably, the length of outstanding described second receiving slit of described blade is greater than the thickness of the sheath of described establishment shielded type cable.
Preferably, the hardness of described blade equates with the hardness of the woven shield of described braided shield cable.
Preferably, described blade adopts with the woven shield identical materials of described braided shield cable and makes.
Use earthing device of the present invention, thereby can change traditional braided shield cable needs earlier sheath to be peeled off, re-used earthing device and contacts realization conventional scheme electrical ground with the outer conductor of cable, but directly adopting sting device to puncture the mode that electrically contacts with outer conductor behind the sheath, this has greatly simplified installation.And earthing device of the present invention can be guaranteed again outer conductor not to be punctured or damages at the insulating sleeve that pierces through cable effectively and with when outer conductor well contacts, thereby realizes the good earth of braided shield cable.
Description of drawings
Fig. 1 is the generalized section of braided shield cable;
Fig. 2 is the existing schematic diagram that braided shield cable is carried out ground connection;
Fig. 3 is the schematic diagram of earthing device of the present invention;
Fig. 4 is the back pseudosection of earthing device among Fig. 3;
Fig. 5 is the schematic diagram that the earthing device of Fig. 4 is in closure state;
Fig. 6 is the schematic diagram of an execution mode of sting device among Fig. 3;
Fig. 7 is the schematic diagram that sting device pierces through the braided shield cable sheath among Fig. 3, and other parts of earthing device are removed;
Fig. 8 is the cross sectional representation shown in Fig. 6.
Embodiment
Below in conjunction with the drawings and specific embodiments, the structure and the principle of earthing device of the present invention are carried out labor.In each accompanying drawing, identical part is carried out mark with identical label.
As shown in Figure 3, be schematic diagram under the open mode of the earthing device that is used for braided shield cable 100 of the present invention.As shown in the figure, this device comprises receiving unit 200, comprises first receiving slit 210 that is used for ccontaining braided shield cable 100; And grounded part 300, grounded part 300 flexibly connects with receiving unit 200, and comprise earthing member 310, second receiving slit 320 and be arranged on this second receiving slit 320 and the sting device 400 that is electrically connected with earthing member 310, wherein, sting device 400 is provided with two blades 410,420, and the axis of this blade and second receiving slit 320 is perpendicular.
More specifically, the cross section of first receiving slit 210 of receiving unit 200 takes the shape of the letter U, its width is more smaller than the external diameter of braided shield cable 100, thereby when ccontaining braided shield cable 100, can utilize the elasticity of this U word structure that braided shield cable 100 chuckings are fixed in first receiving slit 210.In conjunction with Fig. 4, first pivot connection 230 of receiving unit 200 is provided with the storage tank 220 of second pivot connection 330 of ccontaining grounded part 300, and two sidewalls of storage tank 220 are provided with first hole 211,212, accordingly, two sidewalls of second pivot connection 330 of grounded part 300 are provided with second hole 321,322, two second holes 321 wherein, outer distance between 322 (i.e. lateral separation between the outside end face of second pivot connection 330) is slightly less than first hole 211, inner width between 212 (being the lateral separation between 220 two internal end surface of storage tank).During installation, second pivot connection 330 of grounded part 300 can be set in the storage tank 220 of receiving unit, and respectively second hole 321,322 on the grounded part 300 is aligned with first hole 211,212 on the corresponding receiving unit 200, utilize pivot 213,214 holes to link together again with correspondence.
Particularly, in conjunction with Fig. 4, the top of pivot 213,214 is a claw type, and external diameter is more bigger than hole 321,322, thereby can utilize the elasticity of material, pivot 213,214 is pressed in the hole, and the top of pivot 213,214 snaps in the grounded part 200, because the external diameter of pivot 213,214 is bigger, so pivot 213,214 can not come off from the hole 211,212 of grounded part 200 and drops out.After installing, grounded part 200 and receiving unit 300 can relatively rotate around pivot 213,214 under external force drives.As shown in Figure 5, after grounded part 200 and receiving unit 300 installations, relatively rotate to the schematic diagram of closure state around pivot 213,214, as shown in the figure, first receiving slit, 210 bottoms are to the distance between the bottom of second receiving slit 320, equate with the external diameter of braided shield cable 100, or be slightly less than its external diameter.That is to say that first receiving slit, 210 bottoms are apart from the distance of pivot 213,214 central shaft Z, with second receiving slit, 320 bottoms apart from the distance of pivot 213,214 central shaft Z and, equate with the external diameter of braided shield cable 100 or be slightly less than its external diameter.
Two blades 410 of sting device 400,420 knife face is set to vertical with the axial direction of second receiving slit 320, thereby make in grounded part 200 and 300 relative closing up and blade 410 of receiving unit, 420 when contacting with the sheath of braided shield cable 100, blade 410,420 the knife face axial direction with braided shield cable 100 substantially is vertical, the angle of knife face and described axial direction is between 88 ° to 92 °, preferably, the knife face of two blades is vertical with the axial direction of braided shield cable 100, and promptly the angle of knife face and described axial direction is 90 °.
As shown in Figure 6, be the schematic diagram of an execution mode of sting device 400.In this embodiment, two blades 410,420 of employing are for being parallel to each other, and medial surface is that plane, lateral surface are the single-edge blade that has the blade face of inclination.Certainly, as another execution mode, two blades 410,420 of sting device 400 also can be the double-edged razor blades that medial surface and lateral surface all have the blade face of inclination.Can interconnect by the connecting portion 430 that metal material is made between the blade 410,420, to strengthen the strength and stiffness of blade.Connecting portion 430 can be plane as shown in Figure 3, also can be other shape, for example curved surface etc.Sting device 400 can be by means such as injection mouldings, embed second receiving slit 320 of grounded part 300, and make the axial direction of the blade 410,420 of sting device 400 and second receiving slit 320 perpendicular.Understand easily, the coupling part 430 of sting device 400 also can be simplifiedly for metal connects lead, and after blade 410,420 electrical connections, grounded part 300 is gone in injection moulding in parallel to each other again.Blade 410,420 should be tried one's best near pivotally connected end, so that easily pierce through the sheath of braided shield cable.
Blade 410,420 parts are arranged in second receiving slit 320, the blade of blade 410,420 is given prominence to second receiving slit 320, the length of blade 410,420 outstanding second receiving slits 320, should be greater than the thickness of the sheath of braided shield cable, so that when carrying out the ground connection operation, assurance blade 410,420 pierces through sheath and fully contacts with the wire sheathing of braided shield cable.The hardness of blade 410,420 equates with the hardness of braided shield cable 100 wire sheathings, therefore can adopt with the wire sheathing identical materials and make.When metal knitted layer material was copper, blade 410,420 also can utilize copper material to make.Sting device 400 can be electrically connected with earthing member 310 by lead.Earthing device is except that sting device, earthing member 310 and connect other parts the lead, can adopt insulating material such as plastics to make.
Understand easily, sting device 400 can adopt the design of single blade, and certainly, the good electrical contact for the wire sheathing that guarantees sting device and braided shield cable 100 preferably adopts the design of two blades.Understand easily, sting device 400 also can comprise the blade that is electrically connected mutually more than three or three.
Specifically describe the process of utilizing earthing device of the present invention braided shield cable to be carried out the ground connection operation below in conjunction with Fig. 3,4.At first, braided shield cable 100 is inserted in first receiving slit 210 of receiving unit 200 and fix, then, apply external force, make grounded part 300 relatively rotate towards receiving unit 200 around pivot 213,214, further combined with Fig. 7,8, under the effect of external force, at first vertical braided shield cable 100 axial direction A of two blades 410,420 of sting device 400 contact with the sheath of braided shield cable 100, because the sharp knife edges of blade 410,420, blade 410,420 can pierce through the sheath of braided shield cable 100, contacts with wire sheathing.In design, the position of blade 410,420 can be provided with comparatively highlightedly with respect to the bottom of second receiving slit 320, so that blade 410,420 can fully pierce through sheath and fully contact with the wire sheathing of braided shield cable.Preferably, can after blade 410,420 pierces through sheath, thrust the distance of about 0.5mm again towards wire sheathing,, guarantee sting device 400 and wire sheathing good electrical contact so that blade 410,420 is pressed on the wire sheathing.Simultaneously, because the blade 410,420 of sting device 400 adopts the metal material identical with wire sheathing to make, the hardness of blade equates with wire sheathing, therefore wire sheathing can not cut brokenly.Thus, when with earthing member ground connection that sting device 400 is electrically connected after, also realized the good reliable ground of braided shield cable 100 wire sheathings.
In sum, use earthing device of the present invention, thereby can change traditional braided shield cable needs earlier sheath to be peeled off, re-used earthing device and contacts realization conventional scheme electrical ground with the outer conductor of cable, but directly adopting sting device to puncture the mode that electrically contacts with outer conductor behind the sheath, this has greatly simplified installation.And earthing device of the present invention can be guaranteed again outer conductor not to be punctured or damages at the insulating sleeve that pierces through cable effectively and with when outer conductor well contacts, thereby realizes the good earth of braided shield cable.
Claims (10)
1. an earthing device that is used for braided shield cable is characterized in that, comprising:
Receiving unit, it comprises first receiving slit that is used for ccontaining described braided shield cable; And,
Grounded part, itself and described receiving unit are rotationally connected, comprise earthing member, second receiving slit and be arranged on this second receiving slit and the sting device that is electrically connected with described earthing member, wherein, described sting device is provided with at least one blade, and the axis normal of described blade and described second receiving slit.
2. the earthing device that is used for braided shield cable according to claim 1 is characterized in that, described sting device is provided with two blades that are parallel to each other.
3. the earthing device that is used for braided shield cable according to claim 1 and 2 is characterized in that, described first receiving slit takes the shape of the letter U, and its width is more smaller than the external diameter of described braided shield cable.
4. the earthing device that is used for braided shield cable according to claim 1 and 2, it is characterized in that described blade is that medial surface is that plane, lateral surface are that single-edge blade or the described blade that has a blade face of inclination is the double-edged razor blade that medial surface and lateral surface all have the blade face of inclination.
5. the earthing device that is used for braided shield cable according to claim 1 and 2, it is characterized in that, described receiving unit has first pivot connection, described grounded part has second pivot connection, described first pivot connection is provided with the storage tank of ccontaining described second pivot connection, described storage tank is provided with two first holes, the pivot connection of described grounded part is provided with two second holes corresponding respectively with described first hole, and described first hole is connected by pivoted with second hole corresponding with it.
6. the earthing device that is used for braided shield cable according to claim 5 is characterized in that, the insertion end of described pivot is a claw type.
7. the earthing device that is used for braided shield cable according to claim 1 and 2, it is characterized in that, when described earthing device was in closure state, the distance between the bottom of described first receiving slit and second receiving slit was equal to or slightly less than the external diameter of described braided shield cable.
8. the earthing device that is used for braided shield cable according to claim 7 is characterized in that, the length of outstanding described second receiving slit of described blade is greater than the thickness of the sheath of described establishment shielded type cable.
9. the earthing device that is used for braided shield cable according to claim 1 and 2 is characterized in that, the hardness of described blade equates with the hardness of the woven shield of described braided shield cable.
10. the earthing device that is used for braided shield cable according to claim 1 and 2 is characterized in that, described blade adopts with the woven shield identical materials of described braided shield cable and makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100031716A CN102176547A (en) | 2011-01-07 | 2011-01-07 | Grounding device for braid shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100031716A CN102176547A (en) | 2011-01-07 | 2011-01-07 | Grounding device for braid shielded cable |
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| Publication Number | Publication Date |
|---|---|
| CN102176547A true CN102176547A (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100031716A Pending CN102176547A (en) | 2011-01-07 | 2011-01-07 | Grounding device for braid shielded cable |
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| Country | Link |
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| CN (1) | CN102176547A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337718A (en) * | 2013-06-08 | 2013-10-02 | 积架宝威汽车配件(深圳)有限公司 | Puncture-type connector for electronic wires |
Citations (8)
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|---|---|---|---|---|
| US5482475A (en) * | 1993-07-14 | 1996-01-09 | The Whitaker Corporation | Coaxial cable connector |
| US5864090A (en) * | 1997-09-03 | 1999-01-26 | Osram Sylvania Inc. | Ground device and method of grounding a cable using same |
| CN2533576Y (en) * | 2002-04-01 | 2003-01-29 | 黄顺坚 | Single-core crimp plug |
| CN1539180A (en) * | 2001-09-03 | 2004-10-20 | 沃兹有限公司 | Cable connector |
| US20050064759A1 (en) * | 2003-09-23 | 2005-03-24 | Libby Robert A. | Hinged electrical connector for insulated cable |
| US7422480B1 (en) * | 2007-04-20 | 2008-09-09 | Delphi Technologies, Inc. | Shielded electric connector and cable assembly and method for making same |
| CN101471498A (en) * | 2007-12-29 | 2009-07-01 | 何正凯 | Grounding block and use method thereof |
| CN101548435A (en) * | 2006-09-22 | 2009-09-30 | Mt谢莱夫特奥技术备忘录股份公司 | Device for electrically grounding an isolated cable |
-
2011
- 2011-01-07 CN CN2011100031716A patent/CN102176547A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482475A (en) * | 1993-07-14 | 1996-01-09 | The Whitaker Corporation | Coaxial cable connector |
| US5864090A (en) * | 1997-09-03 | 1999-01-26 | Osram Sylvania Inc. | Ground device and method of grounding a cable using same |
| CN1539180A (en) * | 2001-09-03 | 2004-10-20 | 沃兹有限公司 | Cable connector |
| CN2533576Y (en) * | 2002-04-01 | 2003-01-29 | 黄顺坚 | Single-core crimp plug |
| US20050064759A1 (en) * | 2003-09-23 | 2005-03-24 | Libby Robert A. | Hinged electrical connector for insulated cable |
| CN101548435A (en) * | 2006-09-22 | 2009-09-30 | Mt谢莱夫特奥技术备忘录股份公司 | Device for electrically grounding an isolated cable |
| US7422480B1 (en) * | 2007-04-20 | 2008-09-09 | Delphi Technologies, Inc. | Shielded electric connector and cable assembly and method for making same |
| CN101471498A (en) * | 2007-12-29 | 2009-07-01 | 何正凯 | Grounding block and use method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337718A (en) * | 2013-06-08 | 2013-10-02 | 积架宝威汽车配件(深圳)有限公司 | Puncture-type connector for electronic wires |
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Address after: 201707 Shanghai city Qingpu District Industrial Park, new road, No. 303 B2 plant Applicant after: Rosenberg (Shanghai) Telecom Technology Co., Ltd. Address before: 201707 Shanghai city Qingpu District Industrial Park, new road, No. 303 B2 plant Applicant before: Netop (Shanghai) Technology Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI NETOP TELECOM TECHNOLOGY CO., LTD. TO: ROSENBERGER (SHANGHAI) COMMUNICATION TECHNOLOGY CO., LTD. |
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Application publication date: 20110907 |