CN209913065U - Rear-inserted separable connector - Google Patents
Rear-inserted separable connector Download PDFInfo
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- CN209913065U CN209913065U CN201921035267.9U CN201921035267U CN209913065U CN 209913065 U CN209913065 U CN 209913065U CN 201921035267 U CN201921035267 U CN 201921035267U CN 209913065 U CN209913065 U CN 209913065U
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Abstract
The utility model discloses a separable connector of formula of inserting after, connect after cable front end connector and cable, cable front end connector and cable rear end connector all are T font shape and connect through connecting conductor between the two, cable front end connector and cable rear end connector all still include the stress cone, the one end of stress cone is insulating layer section of second and the other end is the semi-conductive layer section, cable front end connector and cable rear end connector all are provided with outer shielding layer and inner shield layer from the extroversion in, place the distance that inner shield layer set for in the insulating layer section of second of stress cone, the semi-conductive layer section of stress cone extends the distance that outer shielding layer set for, the outer shielding layer of stress cone second insulating layer section is provided with the shielding earth connection, be provided with binding post between the insulating layer section of second of stress cone and the inner shield layer, the cable runs through stress cone and is connected with equipment sleeve through binding post. The connector improves the conductor connection performance and the insulation, sealing and shielding effects, avoids interface breakdown and discharge, and can be used in higher voltage places.
Description
Technical Field
The utility model relates to a back formula separable connector.
Background
In the medium-voltage switch cabinet and the cable branch box, one unit is required to be connected with two or more cables, the connection can not be realized only by a front cable connector, and the rear cable connector is required to be expanded. The old-fashioned rear connector has the design and process limitations that the performance of products with higher voltage cannot be completely met, and the structure improvement of the existing connector is necessary.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a separable connector of formula of inserting after improves the conductor connection performance and insulating, sealed and shielding effect of connector, avoids interface breakdown and discharges, can be used to the higher voltage place.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a rear-plug separable connector comprises a front cable connector and a rear cable connector which can be connected with a device sleeve, the front cable joint and the rear cable joint are both in a T shape and are connected through a connecting conductor, the cable front joint and the cable rear joint both comprise stress cones, one end of each stress cone is a second insulating layer section, the other end of each stress cone is a semi-conducting layer section, the front cable joint and the rear cable joint are provided with an outer shielding layer and an inner shielding layer from outside to inside, the second insulating layer of the stress cone is arranged in the inner shielding layer for a set distance, the semiconductor layer of the stress cone extends out of the outer shielding layer for a set distance, the outer shielding layer of the second insulating layer section of the stress cone is provided with a shielding grounding wire, a wiring terminal is arranged between the second insulating layer section of the stress cone and the inner shielding layer, and a cable penetrates through the stress cone and is connected with the equipment sleeve through the wiring terminal.
Preferably, the cable front joint and the cable rear joint are respectively connected with the equipment sleeve through reducing bolts.
Preferably, a shielding cover is arranged at the tail end of the cable rear connector, and a first insulating layer is arranged between the shielding cover and the cable rear connector.
Preferably, the first insulating layer is an insulating plug, and the front end of the cable rear joint is an aluminum pipe.
Preferably, the connection terminal is a copper terminal.
Preferably, the cable and the stress cone are in interference fit, and the interference magnitude is 3-6 mm.
Preferably, the outer surface and the edge of the inner shielding layer are in a fillet or arc transition structure.
Preferably, the upper part of the semi-conductor layer section of the stress cone is in an R-angle shape, and the stress cone semi-conductor layer is overlapped with the outer shield of the cable by 15-25 mm.
Preferably, the semiconductor layer segment of the stress cone overlaps with the second insulating layer segment by 8 mm.
Preferably, interference fit is formed between the cable front connector and the cable rear connector and between the cable rear connector and the insulating plug, and the interference magnitude is 5-6 mm.
The utility model has the advantages that:
first, the utility model discloses improve the stress control who connects and stress cone: this structure uses geometric stress control, and fillet or circular arc transition are done to the surface and the edge on joint inner shield layer, and the stress cone uses semiconductor rubber and insulating rubber integrated into one piece, and semiconductor part upper portion adopts R angle control stress, lower part sealed cable, preferred, stress cone semi-conductive layer and cable outer shield layer overlap joint 20mm, guarantees the effective connection, and the semi-conductive layer and the insulating layer overlap joint 8mm of stress cone avoid installation error to influence shielding effect.
Secondly, reinforcing the insulation fit: preferably, the interference magnitude of the matching of the front cable connector, the rear cable connector and the insulating plug is increased from 4mm to 5mm, the interference magnitude of the cable and the stress cone is increased from 2-5mm to 3-6mm (each cable section is different), and the interference magnitude of 1mm is increased again for the stress cone and the plug, so that the holding force of a matching interface is ensured, and the interface breakdown and discharge are avoided. The connector has the advantages that the connection performance and the shielding effect of the connector are improved, the interface breakdown and the discharge are avoided, and the connector can be used in a higher voltage place.
Drawings
Fig. 1 is a schematic view of the overall structure of a rear-plug separable connector according to the present invention;
fig. 2 is a schematic structural view of the cable rear connector of the present invention;
FIG. 3 is a schematic structural diagram of the stress cone of the present invention;
the reference numerals of the drawings have the following meanings:
1: a cable; 2: shielding the grounding wire; 3: a stress cone; 4: a cable core; 5: a copper terminal; 6: an equipment sleeve; 7: a cable front connector; 8: a connecting conductor; 9: a variable diameter bolt; 10: a cable rear connector; 11: a nut and a gasket; 12: a shield case; 13: an insulating plug; 14: an aluminum tube; 15: a first insulating layer; 16: an inner shield layer; 17: an outer shield layer; 18: a second insulating layer segment; 19: the semiconductor layer segment.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
As shown in fig. 1 to 3, a rear-inserted separable connector includes a front cable connector 7 and a rear cable connector 10 that are connectable to an equipment sleeve 6, where the front cable connector 7 and the rear cable connector 10 are both in a T-shape, and the front cable connector 7 and the rear cable connector 10 are connected by a connecting conductor 8, preferably, the front cable connector 7 and the rear cable connector 10 are respectively connected to the equipment sleeve 6 by a reducer bolt 9, the connecting conductor 8 is a conductive rod, and the front cable connector 7 and the rear cable connector 10 are fixed by a flat pad, an elastic pad, a nut, and the like.
Taking the direction of fig. 1 as an example, the front cable joint 7 and the rear cable joint 10 both further include a stress cone 3 located at the lower portion, as shown in fig. 3, one end (upper end) of the stress cone 3 is a second insulating layer segment 18, and the lower end is a semi-conducting layer segment 19, preferably, the stress cone is integrally formed by using semi-conducting rubber and insulating rubber, the insulating rubber corresponds to the second insulating layer segment 18, the semi-conducting rubber corresponds to the semi-conducting layer segment 19, the stress is controlled by using an R angle at the upper portion of the semi-conducting portion, and the lower portion seals the cable. The semi-conductive layer of the stress cone is overlapped with the second insulating layer section 18 by 8mm, so that the shielding effect is prevented from being influenced by the installation error.
Connect 7 and cable rear connector 10 and all be provided with outer shielding layer 17 and inner shielding layer 16 from the extroversion inwards before the cable, inner shielding layer 16 highly is less than outer shielding layer 17's height, place inner shielding layer 16 and outer shielding layer 17 cavity in the stress cone 3 in, wherein, place the distance that inner shielding layer 16 set for in the second insulating layer section 18 of stress cone 3 in, leave certain clearance between the two, clearance department is provided with binding post, be provided with binding post between second insulating layer section 18 of stress cone 3 and inner shielding layer 16, generally adopt copper terminal 5 more, the terminal compresses tightly on the sinle silk, guarantee that the conductor is effectively connected. The semiconductor layer segment 19 of the stress cone 3 extends out of the outer shielding layer 17 by a set distance, and the specific distance can be set according to actual needs.
The outer shielding layer 17 of the second insulating layer section 18 of the stress cone 3 is provided with a shielding grounding wire 2, the shielding grounding wire 2 extends out of the outer shielding layer 17 for a certain distance, and the shielding grounding wires 2 of the front cable joint 7 and the rear cable joint 10 can be symmetrically arranged. The cable 1 penetrates through the stress cone 3 and is connected with the equipment sleeve 6 through the wiring terminal, the cable 1 and the stress cone 3 are in interference fit, and the interference magnitude is 3-6 mm.
As shown in fig. 2, preferably, the front end of the cable rear connector 10 is an aluminum tube 14, the end of the cable rear connector 10 is provided with a shielding case 12, a first insulating layer 15 is arranged between the shielding case 12 and the cable rear connector 10, for example, an insulating plug 13 is used as the first insulating layer 15, and the insulating plug 13 is connected with the end of the cable rear connector 10 through a nut and a gasket 11. Interference fit is respectively formed between the cable front connector 7 and the cable rear connector 10 and between the cable rear connector 10 and the insulating plug 13, interference magnitude is 5-6mm, preferably 5mm, and insulation fit is strengthened.
The outer surface and the edge of the inner shielding layer 16 are in a fillet or arc transition structure, the upper part of the semiconductor layer section 19 of the stress cone 3 is in an R-angle shape, and the structure is controlled by using geometric stress. The semi-conductive layer of the stress cone 3 overlaps the outer shield of the cable by 15-25mm, preferably, the stress cone semi-conductive layer overlaps the outer shield of the cable by 20mm, ensuring an effective connection.
The utility model has the advantages that:
first, the utility model discloses improve the stress control who connects and stress cone: this structure uses geometric stress control, and fillet or circular arc transition are done to the surface and the edge on joint inner shield layer, and the stress cone uses semiconductor rubber and insulating rubber integrated into one piece, and semiconductor part upper portion adopts R angle control stress, lower part sealed cable, preferred, stress cone semi-conductive layer and cable outer shield layer overlap joint 20mm, guarantees the effective connection, and the semi-conductive layer and the insulating layer overlap joint 8mm of stress cone avoid installation error to influence shielding effect.
Secondly, reinforcing the insulation fit: preferably, the interference magnitude of the matching of the front cable connector, the rear cable connector and the insulating plug is increased from 4mm to 5mm, the interference magnitude of the cable and the stress cone is increased from 2-5mm to 3-6mm (each cable section is different), and the interference magnitude of 1mm is increased again for the stress cone and the plug, so that the holding force of a matching interface is ensured, and the interface breakdown and discharge are avoided. The connector has the advantages that the connection performance and the shielding effect of the connector are improved, the interface breakdown and the discharge are avoided, and the connector can be used in a higher voltage place.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. A rear-inserted separable connector comprises a cable front connector (7) and a cable rear connector (10) which can be connected with an equipment sleeve (6), wherein the cable front connector (7) and the cable rear connector (10) are both in a T-shaped shape and are connected with each other through a connecting conductor (8), the rear-inserted separable connector is characterized in that the cable front connector (7) and the cable rear connector (10) further comprise stress cones (3), one end of each stress cone (3) is a second insulating layer section (18), the other end of each stress cone (3) is a semiconductor layer section (19), the cable front connector (7) and the cable rear connector (10) are respectively provided with an outer shielding layer (17) and an inner shielding layer (16) from outside to inside, the second insulating layer section (18) of each stress cone (3) is arranged in the inner shielding layer (16) at a set distance, and the semiconductor layer sections (19) of the stress cones (3) extend out of the set distance of the outer shielding layers (17), the outer shielding layer (17) of the second insulating layer section (18) of the stress cone (3) is provided with a shielding grounding wire (2), a wiring terminal is arranged between the second insulating layer section (18) of the stress cone (3) and the inner shielding layer (16), and the cable (1) penetrates through the stress cone (3) and is connected with the equipment sleeve (6) through the wiring terminal.
2. A rear plug-in separable connector according to claim 1, wherein the cable front joint (7) and the cable rear joint (10) are connected to the equipment sleeve (6) by reducer bolts (9), respectively.
3. A rear plug-in separable connector according to claim 2, characterized in that the end of the cable rear connector (10) is provided with a shield (12), and a first insulating layer (15) is provided between the shield (12) and the cable rear connector (10).
4. A rear plug-type separable connector according to claim 3, wherein the first insulating layer (15) is an insulating plug (13), and the front end of the cable rear joint (10) is an aluminum pipe (14).
5. A rear plug-in separable connector according to claim 1, characterised in that the terminal is a copper terminal (5).
6. A rear plug-in separable connector according to claim 1, wherein the cable (1) and the stress cone (3) are in interference fit, and the interference is 3-6 mm.
7. A rear plug-in separable connector according to claim 1, wherein the outer surface and the edge of the inner shield layer (16) are rounded or rounded transition structures.
8. A rear plug-in separable connector according to claim 7, characterized in that the upper part of the semi-conductive layer segment (19) of the stress cone (3) is R-shaped, and the stress cone semi-conductive layer overlaps the cable outer shield by 15-25 mm.
9. A rear plug-in separable connector according to claim 1, characterized in that the semi-conductor layer segment (19) of the stress cone (3) overlaps the second insulating layer segment (18) by 8 mm.
10. A rear-plug separable connector according to claim 4, characterised in that the cable front connector (7) and the cable rear connector (10), and the cable rear connector (10) and the insulating plug (13) are in interference fit, and the interference is 5-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035267.9U CN209913065U (en) | 2019-07-04 | 2019-07-04 | Rear-inserted separable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035267.9U CN209913065U (en) | 2019-07-04 | 2019-07-04 | Rear-inserted separable connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209913065U true CN209913065U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921035267.9U Active CN209913065U (en) | 2019-07-04 | 2019-07-04 | Rear-inserted separable connector |
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| CN (1) | CN209913065U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243370A (en) * | 2021-12-29 | 2022-03-25 | 广东电网有限责任公司 | Rapid switching cable assembly |
| CN114597681A (en) * | 2022-03-02 | 2022-06-07 | 浙江运达风电股份有限公司 | 10kV medium-voltage cable connecting assembly and method in tower barrel of wind generating set |
-
2019
- 2019-07-04 CN CN201921035267.9U patent/CN209913065U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243370A (en) * | 2021-12-29 | 2022-03-25 | 广东电网有限责任公司 | Rapid switching cable assembly |
| CN114597681A (en) * | 2022-03-02 | 2022-06-07 | 浙江运达风电股份有限公司 | 10kV medium-voltage cable connecting assembly and method in tower barrel of wind generating set |
| CN114597681B (en) * | 2022-03-02 | 2024-05-17 | 运达能源科技集团股份有限公司 | 10KV medium-voltage cable connection assembly and method in tower barrel of wind generating set |
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