CN111048921A - 1250A generating line connecting device - Google Patents
1250A generating line connecting device Download PDFInfo
- Publication number
- CN111048921A CN111048921A CN201911397840.5A CN201911397840A CN111048921A CN 111048921 A CN111048921 A CN 111048921A CN 201911397840 A CN201911397840 A CN 201911397840A CN 111048921 A CN111048921 A CN 111048921A
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- Prior art keywords
- contact
- piece
- contact piece
- elastic
- clamping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
The utility model provides a 1250A bus connecting device, includes conducting block and more than one contact assembly subassembly, and contact assembly subassembly includes a plurality of contact piece A and the contact piece B that sets up at interval each other, and a plurality of contact piece A, contact piece B respectively with the conducting block joint, conducting block and contact assembly subassembly surface are equipped with the insulating cover of generating line, the insulating cover cladding conducting block of generating line and contact assembly subassembly. The 1250A bus connecting device has the advantages of increasing the effective area of electric contact between the contact plate and the contact box of the ring main unit, dispersing contact heating points, improving local temperature rise, providing the beneficial effect of high conductivity, and allowing the bus connector to deviate when being connected with the contact box by the contact plate group and the conductive block in pressure connection.
Description
Technical Field
The invention relates to a 1250A bus connecting device which is suitable for connection of medium-voltage distribution equipment, such as SF6 ring main unit row and other fully-sealed and fully-insulated plug-in connection. Belongs to the technical field of electrical and electric power distribution equipment
Background
At present, after the SF6 ring main unit uses the bus connection device, the ring main unit can be expanded in any connection combination mode. Because the bus connecting device is simple and quick to install, the complete looped network cabinet enterprise can form batch standardized production or advanced stock production of a single cabinet body, and the combined cabinet bodies can be flexibly and quickly supplied in time according to customer requirements after receiving a contract order, so that the supply period is shortened. In the prior art, the technical parameters of the bus connecting device are only suitable for being applied to a power system with rated voltage of 12kV and rated current of 630A. However, in order to achieve higher power efficiency, the power system needs to be upgraded to increase the rated current 630A to 1250A, so that the bus connecting device with the rated current 630A commonly existing in the original market obviously fails to meet the economic development requirement. In addition, the bus connecting device with the structure has the advantages of full shielding, full insulation, full sealing and full protection at the connecting part, compact structure, good expansibility, excellent insulating property and excellent through-current capacity. It has the following disadvantages:
1. the contact part of the contact ring and the rod-shaped contact of the ring main unit is easy to have over-high temperature rise, and the defects of shortening the service life of the bus connecting device and wasting energy are existed;
2. when the rod-shaped contact of the ring main unit is pushed into the contact ring of the contact piece, the contact ring can bear great resistance, so that the splicing of the ring main unit is laborious;
3. the limited contact area between the rod-shaped contact of the ring main unit and the ring-shaped copper contact piece is small. Therefore, the conductivity of the alloy needs to be improved.
Disclosure of Invention
The invention aims to provide a 1250A bus connecting device which has the advantages of long service life, small splicing resistance of a cabinet body and good insulating property and effectively passes 1250A large current so as to overcome the defects in the prior art.
The 1250A bus connecting device designed according to the purpose comprises a conductive block and more than one contact assembly component, wherein the contact assembly component comprises a plurality of contact pieces A and contact pieces B which are arranged at intervals, the contact pieces A and the contact pieces B are respectively clamped with the conductive block, a bus insulating sleeve is arranged on the outer surfaces of the conductive block and the contact assembly component, and the bus insulating sleeve covers the conductive block and the contact assembly component, so that the connection part of the 1250A bus connecting device has the characteristics of shielding, insulating, sealing and protecting. The material, external dimensions, etc. of the conductive block, the contact piece a and the contact piece B are designed in accordance with the standard of the current-carrying capacity 1250A, so that the bus bar connection device can pass a large current of 1250A in a 12kV power supply system. The bus connecting device has excellent insulating performance and current capacity, compact structure and good expansibility.
The contact piece group is formed by combining the contact pieces A and the contact pieces B, and the contact piece group is in pressure connection with the conductive block, so that deviation of the bus connecting device when the bus connecting device is connected with the contact box can be allowed.
The contact assembly component also comprises a support ring, and the contact piece A and the contact piece B are arranged on the support ring at intervals; the contact piece A is provided with a support ring clamping groove C, the contact piece B is provided with a support ring clamping groove D, a plurality of contact piece clamping grooves are uniformly distributed on the support ring corresponding to the support ring clamping grooves C, D, two adjacent contact piece clamping grooves are arranged at intervals, and the support ring clamping grooves C, D are buckled with the contact piece clamping grooves respectively to fix the positions of the contact piece A and the contact piece B.
The contact assembly component further comprises an elastic piece E and an elastic piece F, the plurality of contact pieces A and the contact pieces B are mounted on the support ring at intervals, and the elastic piece E and the elastic piece F are sleeved on the outer surfaces of the plurality of contact pieces A and the contact pieces B at intervals. Set up elastic component E and elastic component F on contact piece A, the contact piece B of support ring to be the flexible coupling during the messenger pegs graft, when can allowing the concatenation cabinet body, the concatenation error is within 5mm between cabinet and the cabinet.
The contact piece A is provided with a first elastic piece E mounting groove and a first elastic piece F mounting groove which are spaced from each other, and the contact piece B is provided with a second elastic piece E mounting groove and a second elastic piece F mounting groove which are spaced from each other; the elastic piece E is sleeved on the outer surface of the contact piece A, B through the mounting grooves of the first elastic piece E and the second elastic piece E; the elastic piece F is sleeved on the outer surface of the contact piece A, B through the mounting grooves of the first elastic piece F and the second elastic piece F.
The elastic parts E and F are at least spring rings respectively, and the outer diameter of the elastic part E is larger than that of the elastic part F.
The bus insulation sleeve is at least a bus silica gel sleeve, and silica gel has the characteristics of heat resistance and high temperature resistance, so that the service life of the bus connecting device is prolonged.
The contact piece A and the contact piece B are both provided with a clamping position G, and the conductive block is provided with a matched clamping position H corresponding to the clamping position; the clamping position G and the clamping position H are clamped.
The clamping position G and the clamping position H are both provided with more than one arc section to form arc section grooves for clamping; or the clamping position G and the clamping position H are both provided with U-shaped grooves or concave grooves for clamping.
The invention has the following beneficial effects:
a. the bus insulation sleeve covers the conductive block and the contact assembly component, so that the connection part of the 1250A bus connection device has the characteristics of shielding, insulation, sealing and protection;
b. the materials, the external dimensions and the like of the conductive block, the contact piece A and the contact piece B are designed according to the standard of the current-carrying capacity 1250A, so that the bus connecting device can pass the large current of 1250A in a 12kV power supply system;
c. the elastic piece E and the elastic piece F are arranged on the contact piece A and the contact piece B of the support ring, so that the flexible connection is realized during the splicing, and the splicing error between the cabinets is within 5mm when the cabinet bodies are allowed to be spliced;
d. the bus insulation sleeve is at least a bus silica gel sleeve, and silica gel has the characteristics of heat resistance and high temperature resistance, so that the service life of the bus connecting device is prolonged.
In summary, the 1250A bus connecting device of the present invention has the advantages of increasing the effective area of the electrical contact between the contact plate and the contact box of the ring main unit, dispersing the contact heating points, improving the local temperature rise, providing the beneficial effect of high conductivity, and allowing the bus connector to have deviation when being connected with the contact box by the pressure connection of the contact plate group and the conductive block. A large current of 1250A can be passed in a 12kV power supply system. The 1250A bus connecting device is characterized by shielding, insulation, sealing and protection, has compact structure, good expansibility, excellent insulation performance and current capacity, is in flexible connection during plugging, and can allow the splicing error between cabinets to be within 5 mm.
Drawings
Fig. 1 is a schematic view of an internal structure of a bus bar connection device 1250A according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a contact mounting assembly according to an embodiment of the invention.
Fig. 3 is a schematic plan view of a contact mounting assembly according to an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a conductive block with contact mounting assemblies mounted at both ends thereof according to an embodiment of the invention.
Fig. 5 is an exploded view of the conductive block and the contact mounting assembly at both ends thereof, respectively, according to an embodiment of the present invention.
Fig. 6 is a schematic structural view illustrating the assembly of the support ring, the elastic member E and the elastic member F with the contact piece, respectively, according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a contact pad a according to an embodiment of the invention.
Fig. 8 is a schematic structural diagram of a contact sheet B according to an embodiment of the invention.
FIG. 9 is a schematic structural diagram of a conductive block according to an embodiment of the invention.
In the drawing, 1 is a bus silica gel sleeve, 2 is a conductive block, 2.1 is a clamping position H, 3 is a contact piece A, 3.1 is a support ring clamping groove C, 3.2 is a first elastic piece E mounting groove, 3.3 is a first elastic piece F mounting groove, 4 is a contact piece B, 4.1 is a support ring clamping groove D, 4.2 is a second elastic piece E mounting groove, 4.3 is a second elastic piece F mounting groove, 5 is a support ring, 5.1 is a contact piece clamping groove, 6 is an elastic piece E, 7 is an elastic piece F, 8 is a contact assembly component, and 9 is a clamping position G.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1-9, a 1250A bus connecting device includes a conductive block 2 and more than one contact assembly 8, where the contact assembly 8 includes a plurality of contact pieces A3 and B4 arranged at intervals, the contact pieces A3 and B4 are respectively connected with the conductive block 2 in a snap-fit manner, and bus insulating sleeves are arranged on outer surfaces of the conductive block 2 and the contact assembly 8, and cover the conductive block 2 and the contact assembly 8.
The contact assembly 8 further comprises a support ring 5, and the contact piece A3 and the contact piece B4 are arranged on the support ring 5 at intervals; the contact piece A3 is provided with a support ring clamping groove C3.1, the contact piece B4 is provided with a support ring clamping groove D4.1, the support ring 5 is uniformly provided with a plurality of contact piece clamping grooves 5.1 corresponding to the support ring clamping grooves C, D3.1.1 and 4.1, the two adjacent contact piece clamping grooves 5.1 are arranged at intervals, and the support ring clamping grooves C, D3.1.1 and 4.1 are respectively buckled with the contact piece clamping grooves 5.1.
The contact assembly component 8 further comprises an elastic piece E6 and an elastic piece F7, the contact pieces A3 and the contact pieces B4 are alternately arranged on the support ring 5, and the elastic piece E6 and the elastic piece F7 are alternately sleeved on the outer surfaces of the contact pieces A3 and the contact pieces B4.
The contact piece A3 is provided with a first elastic piece E mounting groove 3.2 and a first elastic piece F mounting groove 3.3 which are spaced apart, and the contact piece B4 is provided with a second elastic piece E mounting groove 4.2 and a second elastic piece F mounting groove 4.3 which are spaced apart; the elastic piece E6 is sleeved on the outer surfaces of the contact pieces A, B3, 4 through the first elastic piece E mounting groove 3.2 and the second elastic piece E mounting groove 4.2; the elastic member F7 is fitted over the outer surfaces of the contact pieces A, B3, 4 by fitting the first and second elastic members F into the grooves 3.3, 4.3.
The elastic member E6 and the elastic member F7 are at least spring rings respectively, and the outer diameter of the elastic member E6 is larger than that of the elastic member F7.
The bus insulation sleeve is at least a bus silica gel sleeve 1.
The contact piece A3 and the contact piece B4 are both provided with a clamping position G9, and the conductive block 2 is provided with a matched clamping position H2.1 corresponding to the clamping position 9; clamping position G9 and clamping position H2.1 are clamped.
The clamping position G9 and the clamping position H2.1 are both provided with more than one arc section to form arc section grooves for clamping; or, the clamping position G9 and the clamping position H2.1 are both provided with a U-shaped groove or a concave groove for clamping.
The specific installation steps are as follows:
firstly, assembling a contact assembly 8, alternately installing contact pieces A3 and B4 on a support ring 5 to position the positions of the contact pieces A3 and B4, then installing an elastic piece E6 and an elastic piece F7, installing and fixing the contact pieces A3 and B4 by adopting the elastic piece E6 and the elastic piece F7, and forming a contact piece group by the contact pieces A3 and B.
And installing the conductive block 2 into the middle of the bus silica gel sleeve 1, installing the conductive block 2 in the bus silica gel sleeve 1, and positioning. And then one end of the installed contact piece group which is in a large cylinder shape is installed on a contact head of the conductive block 2, namely, the contact piece group is respectively installed at one end of the conductive block 2 by using a clamping type method according to the assembly of the contact piece group, so that two ends of the contact piece group are in a cylinder shape. The other end of the conductive block 2 is also provided with a contact mounting assembly 8.
Wherein both sides are equipped with the arch respectively in the middle of generating line silica gel cover 1, the protruding centre gripping conducting block 2 intermediate position of both sides.
The contact pieces A3 and B4 are determined by the contact bayonet positions, or the contact pieces A3 and B4 are provided with notches for dividing and identifying the contact piece types.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A 1250A bus bar connecting device comprising a conductive block (2), and one or more contact mounting assemblies (8), characterized in that: contact assembly subassembly (8) include a plurality of contact piece A (3) and contact piece B (4) that set up at an interval each other, a plurality of contact piece A (3), contact piece B (4) respectively with conducting block (2) joint, conducting block (2) and contact assembly subassembly (8) surface are equipped with the insulating cover of generating line, the insulating cover cladding conducting block (2) of generating line and contact assembly subassembly (8).
2. The 1250A bus bar attachment apparatus of claim 1, wherein: the contact assembly component (8) further comprises a support ring (5), and the contact piece A (3) and the contact piece B (4) are installed on the support ring (5) at intervals; the contact piece A (3) is provided with a support ring clamping groove C (3.1), the contact piece B (4) is provided with a support ring clamping groove D (4.1), the support ring (5) is provided with a plurality of contact piece clamping grooves (5.1) corresponding to the support ring clamping grooves C, D (3.1 and 4.1) in an evenly distributed manner, two adjacent contact piece clamping grooves (5.1) are arranged at intervals, and the support ring clamping grooves C, D (3.1 and 4.1) are buckled with the contact piece clamping grooves (5.1) respectively.
3. The 1250A bus bar attachment of claim 2, wherein: contact assembly spare (8) still include elastic component E (6) and elastic component F (7), and a plurality of contact piece A (3), contact piece B (4) are installed on support ring (5) at intervals, and elastic component E (6) and elastic component F (7) looks interval cover establish on the surface of a plurality of contact piece A (3), contact piece B (4).
4. The 1250A bus bar attachment of claim 3, wherein: the contact piece A (3) is provided with a first elastic piece E mounting groove (3.2) and a first elastic piece F mounting groove (3.3) which are spaced from each other, and the contact piece B (4) is provided with a second elastic piece E mounting groove (4.2) and a second elastic piece F mounting groove (4.3) which are spaced from each other; the elastic piece E (6) is sleeved on the outer surfaces of the contact pieces A, B (3, 4) through the first elastic piece E mounting groove and the second elastic piece E mounting groove (3.2, 4.2); the elastic piece F (7) is sleeved on the outer surfaces of the contact pieces A, B (3, 4) through the mounting grooves (3.3, 4.3) of the first elastic piece F and the second elastic piece F.
5. The 1250A bus bar attachment of claim 4, wherein: the elastic part E (6) and the elastic part F (7) are at least spring rings respectively, and the outer diameter of the elastic part E (6) is larger than that of the elastic part F (7).
6. The 1250A bus bar attachment apparatus of claim 1, wherein: the bus insulation sleeve is at least a bus silica gel sleeve (1).
7. The 1250A bus bar attachment apparatus of claim 1, wherein: the contact piece A (3) and the contact piece B (4) are both provided with a clamping position G (9), and the conductive block (2) is provided with a matched clamping position H (2.1) corresponding to the clamping position (9); the clamping position G (9) is clamped with the clamping position H (2.1).
8. The 1250A bus bar attachment of claim 7, wherein: the clamping position G (9) and the clamping position H (2.1) are both provided with more than one arc section to form arc section grooves for clamping; or the clamping position G (9) and the clamping position H (2.1) are both provided with U-shaped grooves or concave grooves for clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397840.5A CN111048921A (en) | 2019-12-30 | 2019-12-30 | 1250A generating line connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397840.5A CN111048921A (en) | 2019-12-30 | 2019-12-30 | 1250A generating line connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111048921A true CN111048921A (en) | 2020-04-21 |
Family
ID=70241019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397840.5A Pending CN111048921A (en) | 2019-12-30 | 2019-12-30 | 1250A generating line connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111048921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086793A (en) * | 2020-09-15 | 2020-12-15 | 常熟理工学院 | Quick wire plugging device |
| CN114725862A (en) * | 2022-05-06 | 2022-07-08 | 江苏大全封闭母线有限公司 | Fixing tool for flexible connection of phase isolated bus |
-
2019
- 2019-12-30 CN CN201911397840.5A patent/CN111048921A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086793A (en) * | 2020-09-15 | 2020-12-15 | 常熟理工学院 | Quick wire plugging device |
| CN114725862A (en) * | 2022-05-06 | 2022-07-08 | 江苏大全封闭母线有限公司 | Fixing tool for flexible connection of phase isolated bus |
| CN114725862B (en) * | 2022-05-06 | 2024-05-14 | 大全集团有限公司 | Fixing tool for soft connection of phase separation bus |
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