CN219833691U - Shielded high-voltage wiring box - Google Patents
Shielded high-voltage wiring box Download PDFInfo
- Publication number
- CN219833691U CN219833691U CN202321329696.3U CN202321329696U CN219833691U CN 219833691 U CN219833691 U CN 219833691U CN 202321329696 U CN202321329696 U CN 202321329696U CN 219833691 U CN219833691 U CN 219833691U
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- wire outlet
- wall surface
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims abstract 2
- 238000005192 partition Methods 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 4
- 239000004593 Epoxy Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008384 inner phase Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Connection Or Junction Boxes (AREA)
Abstract
The utility model relates to a shielding high-voltage wiring box, which comprises a box body, wherein the top of the box body is provided with an opening, two independent cavities are separated from the inner part of the box body through a fixed plate, one cavity is used as an outgoing cavity for outgoing lines of a power line, and the other cavity is separated into a plurality of independent incoming line cavities through a plurality of separation plates; a wire inlet hole is formed in the side wall surface of the single wire inlet cavity, and a binding post is arranged in the wire inlet hole; the end face of the fixed plate is provided with a plurality of first wire outlet holes, and first locking threaded sleeves are arranged in the first wire outlet holes; a second wire outlet hole is formed in the side wall surface of the wire outlet cavity, and a second locking screw sleeve is arranged in the second wire outlet hole; the open part of the box body is provided with a cover plate in a sealing way, and the side wall surface of the outlet cavity is also provided with a plurality of grounding studs and a ground wire in a matching way. Through setting up the baffle of epoxy material to guarantee can not communicate between the power line of being connected with the wiring double-screw bolt of terminal, make no electromagnetic interference in the terminal box, prevent that the internal phase of terminal box from taking place electric explosion with alternate, eliminate the potential safety hazard of terminal box work.
Description
Technical Field
The utility model relates to the technical field of junction boxes for high-voltage motors, in particular to a shielding type high-voltage junction box.
Background
The high-voltage motor is a device for converting high-voltage current into mechanical energy, and is widely used as a prime mover in various fields such as mines, mechanical industry, petrochemical industry, generators and the like. In the actual use process of the high-voltage motor, an output cable of the three-phase alternating-current motor is connected with an external motor control cabinet through a junction box, three-phase cables are respectively connected with power lines positioned in the junction box through binding posts, and a plurality of power lines and ground wires are summarized into a bus to be connected with the external electric control cabinet from the junction box.
The mode that the three-phase terminal adopted the high-voltage junction box among the prior art is inside at same wiring cavity, and this kind of wiring mode does not shield terminal connector in the junction box each other, and the electric safety of junction box mainly relies on the distance assurance between the terminal, and the requirement of electric gap and creepage distance need be satisfied to the distance between the terminal to can not communicate between the three-phase power line in the assurance junction box. However, when the voltage is changed or the power line arrangement is deviated, certain potential safety hazards of discharging or creepage exist; meanwhile, when current passes through, the cable can be caused to move, so that the arrangement of power lines is disordered, and the working stability and safety of the junction box are difficult to ensure.
Disclosure of Invention
The inventor aims at the defects in the prior art, and provides a shielding type high-voltage wiring box, through arranging a baffle made of epoxy resin, a wiring terminal is separated into independent wiring cavities, so that communication between power wires connected with wiring studs of the wiring terminal is avoided, electromagnetic interference is avoided in the wiring box, electric explosion between the inner phase and the phase in the wiring box is prevented, and potential safety hazards of the work of the wiring box are eliminated; meanwhile, the power line is fixed for a plurality of times, so that the power line is prevented from bouncing due to current, and the working stability of the junction box is ensured.
The technical scheme adopted by the utility model is as follows:
the utility model provides a shielding type high-voltage wiring box, includes the box body that the top is provided with the opening, the box body is inside separates two independent cavitys through the fixed plate, and one cavity is used as the outgoing line chamber of power line outgoing line, and another cavity separates several independent income line chamber through several baffle;
a wire inlet hole is formed in the side wall surface of the single wire inlet cavity, and a binding post for connecting an external cable and an internal power wire is mounted in the wire inlet hole in a matched manner;
the end face of the fixed plate is provided with a plurality of first wire outlet holes for wire outlet of the power wire in the wire inlet cavity, and a first locking screw sleeve is arranged in each first wire outlet hole in a matched mode;
a second wire outlet hole for the wire outlet of the power wire in the wire outlet cavity is formed in the side wall surface of the wire outlet cavity, and a second locking screw sleeve is mounted in the second wire outlet hole in a matched mode;
the open part of the box body is provided with a cover plate in a sealing manner, the cover plate surrounds the open part of the box body, the side wall surface of the outgoing line cavity is provided with a plurality of grounding studs in a matching manner, the single grounding stud is connected with a ground wire, and each ground wire is connected with the corresponding outgoing line Kong Chuxian through a second outgoing line.
As a further improvement of the above technical scheme:
the partition board is made of epoxy resin.
The wiring terminal adopts the vase wiring terminal, the inside of vase wiring terminal is provided with the pin of fixed cable.
The terminal that the terminal is located the interior of line entering chamber is provided with the wiring double-screw bolt of copper material.
The wiring stud is connected with the power line through a locking nut.
The inner wall surface of the box body is provided with a plurality of pressure release grooves, the pressure release grooves are communicated with the cavity inside the box body, and the pressure release grooves are filled with sealant.
The first locking screw sleeve and the second locking screw sleeve are made of stainless steel, the first locking screw sleeve shields electromagnetic interference between the wire inlet cavity and the wire outlet cavity, and the second locking screw sleeve shields electromagnetic interference between the wire outlet cavity and the external environment.
Install the connecting seat on the outer wall of box body, the connecting seat surrounds the terminal that is located the box body outside, is provided with the through-hole that the several is used for the cable to go into the line on the lateral wall of connecting seat, the rubber sleeve is installed to the through-hole fit, is provided with the hem that is used for waterproof dirt-proof on the lateral wall of connecting seat.
The box body is installed with the apron is sealed through the rubber strip, and the apron is square sheet and is provided with the hem that is used for waterproof dirt-proof all around.
The partition board is installed with the box body in a sealing way through the sealing strip.
The beneficial effects of the utility model are as follows:
the utility model has compact and reasonable structure and convenient operation, and the wiring posts in the junction box are separated into the three independent wire inlet cavities by arranging the partition plate and the fixing plate, so that the creepage distance between the three-phase wiring posts can be increased, the junction box has no electromagnetic interference, thereby preventing phase-phase and phase-phase electric explosion, eliminating potential safety hazards and ensuring the working safety of the junction box.
The utility model also has the following advantages:
(1) According to the utility model, the connecting seat with the folded edge is arranged, so that the binding post positioned outside the box body can be effectively protected; meanwhile, the connecting seat is matched with the rubber sleeve to protect and fix the cable, so that the cable is prevented from being cut, the cable is ensured to be orderly arranged, and the cable is prevented from being deviated.
(2) According to the utility model, the power line is fixed for a plurality of times by arranging the fixing plate, the first locking screw sleeve and the second locking screw sleeve, so that the damage to the internal structure of the junction box caused by pulling the power line or the grounding wire by external force can be effectively prevented, and the working stability and the electrical safety of the interior of the junction box are ensured; meanwhile, the locking screw sleeve also has the electromagnetic isolation function.
(3) According to the utility model, the pressure release groove is formed, and the sealing glue is filled in the groove, so that each cavity is independent, the sealing glue has elasticity, and when the air pressure in the cavity is overlarge, the sealing glue can be sprung out, so that the pressure is released, and the safety performance of the junction box is further improved.
(4) According to the utility model, the cover plate adopts a flanging process, the flanging of the cover plate is turned towards the box body direction, the waterproof and dustproof effects can be realized, and the box body and the cover plate are sealed and installed through the sealing strip, so that the cleanliness of the interior of the box body is ensured.
(5) The utility model has compact structure, and can reduce the distance between the wiring studs while ensuring the safety performance of the junction box by arranging the partition plate, thereby reducing the volume of the junction box and reducing the requirement of the junction box on the installation environment.
(6) The utility model can meet the normal wiring requirement of the motor, and has the functions of increasing the creepage distance between three phases, locking the incoming line, isolating the exposed wiring point, protecting electric impact, preventing water and dust and being easy to wire.
Drawings
Fig. 1 is a partial cross-sectional view of the present utility model.
Fig. 2 is a side elevation view in full section of the present utility model.
Fig. 3 is a partial enlarged view at a in fig. 2.
Fig. 4 is a full cross-sectional view of the cartridge of the present utility model.
Fig. 5 is a half cross-sectional view of a post according to the present utility model.
Fig. 6 is a schematic diagram of the installation structure of the binding post and the power line in the utility model.
Wherein: 1. a case body; 2. a cover plate; 3. a fixing plate; 4. a first wire outlet hole; 5. binding posts; 6. a partition plate; 7. a wire inlet hole; 8. a second wire outlet hole; 9. a wire inlet cavity; 10. a wire outlet cavity; 11. a cable; 12. a power line; 13. a ground wire; 14. a grounding stud; 15. the first locking screw sleeve; 16. the second locking screw sleeve; 17. a rubber sleeve; 18. a rubber strip; 19. a sealing strip; 20. a connecting seat; 21. a pressure release groove; 22. a pin; 23. a wiring stud; 24. and (5) locking the nut.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
The structure and the function of the utility model are as follows:
as shown in fig. 1-6, a shielded high-voltage wiring box comprises a box body 1 with an opening at the top, wherein two independent cavities are separated from the inside of the box body 1 through a fixed plate 3, one cavity is used as an outgoing cavity 10 for outgoing lines of power lines 12, and the other cavity is separated from a plurality of independent incoming line cavities 9 through a plurality of partition plates 6; a wire inlet hole 7 is formed in the side wall surface of the single wire inlet cavity 9, and a binding post 5 for connecting an external cable 11 and an internal power wire 12 is mounted in the wire inlet hole 7 in a matched manner; the end face of the fixed plate 3 is provided with a plurality of first wire outlet holes 4 for outgoing wires of power wires 12 in the wire inlet cavity 9, and a first locking screw sleeve 15 is arranged in the single first wire outlet hole 4 in a matched mode; a second wire outlet hole 8 for the wire outlet of the power wire 12 in the wire outlet cavity 10 is formed in the side wall surface of the wire outlet cavity 10, and a second locking screw sleeve 16 is arranged in the second wire outlet hole 8 in a matched manner; the open part of the box body 1 is provided with a cover plate 2 in a sealing way, the cover plate 2 surrounds the open part of the box body 1, the side wall surface of the wire outlet cavity 10 is provided with a plurality of grounding studs 14 in a matching way, the single grounding stud 14 is connected with the ground wires 13, and each ground wire 13 is connected with a wire outlet through the second wire outlet hole 8. The box body 1 is a carrier for mounting other parts, the box body 1 is in a cube shape, and the side wall of the wire outlet cavity 10 is in an inclined plane so as to save the mounting space of the junction box; the box body 1 and the partition plate 6 are mounted in a matched manner through the connecting frame, threaded connecting pieces are adopted between the connecting frame and the box body 1 and between the connecting frame and the partition plate 6 for mounting in a matched manner, and the connection performance is stable and reliable; the single power line 10 is led out through the first line outlet hole 4, and the first locking screw sleeve 15 can limit the power line 10 so as to reduce shaking of the power line 10.
According to the utility model, the inside of the junction box is divided into two parts by arranging the fixing plate 3, two partition boards 6 are arranged in one cavity to divide the junction box into three independent wire inlet cavities 9, each wire inlet cavity 9 is independently provided with one binding post 5, one end of each binding post 5 is respectively connected with a motor three-phase cable 11, the other end of each binding post 5 is connected with a power wire 12, so that wiring conversion is completed, and the partition boards 6 electrically isolate the three power wires 12; the other cavity is used as a wire outlet cavity 10, three power wires 12 enter the wire outlet cavity 10 from the wire inlet cavity 9 through the first wire outlet hole 4, and are combined with a ground wire 13 together to form a bus wire to be connected with an external control cabinet from the second wire outlet hole 8.
The partition board 6 is made of epoxy resin; the partition plate 6 is hermetically mounted with the box body 1 by a sealing strip 19. The spacer 6 is an epoxy plate for separating the studs 5 and keeping each stud 5 in a separate compartment, without interfering with each other.
The binding post 5 adopts a porcelain bottle binding post, and the inside of the porcelain bottle binding post is provided with a pin 22 for fixing the cable 11. The binding post 5 is a connecting device of the external cable 11 and the power line 12, the porcelain bottle binding post is special for high-voltage line connection, and the pin 22 is used for fixing the cable 11 to prevent rotation.
The end of the binding post 5 positioned in the wire inlet cavity 9 is provided with a copper binding post 23; the wire connection stud 23 is connected to the power line 12 by means of a lock nut 24. The wiring stud 23 is the joint of the binding post 5 and is used for being matched with the joint of the power line 12 for installation, the joint of the power line 12 is locked on the outer circumferential surface of the wiring stud 23 through the two locking nuts 24, and the installation can be completed, and the disassembly and the assembly are convenient and quick.
A washer is fitted between the lock nut 24 and the joint of the power line 12.
The inner wall surface of the box body 1 is provided with a plurality of pressure release grooves 21, the pressure release grooves 21 are communicated with the cavity in the box body 1, and the pressure release grooves 21 are filled with sealant. When the air pressure in the wire inlet cavity 9 is too high, the pressure can be released by bouncing off the sealant, so that the electric explosion is prevented.
The first locking screw sleeve 15 and the second locking screw sleeve 16 are made of stainless steel, the first locking screw sleeve 15 shields electromagnetic interference between the wire inlet cavity 9 and the wire outlet cavity 10, and the second locking screw sleeve 16 shields electromagnetic interference between the wire outlet cavity 10 and the external environment. The first locking screw sleeve 15 and the second locking screw sleeve 16 are used for fixing the power line 12, so that the power line 12 is prevented from being pulled by external force, and the internal structure of the box body 1 is prevented from being damaged; and can effectively shield the electromagnetism between the two chambers.
The connecting seat 20 is installed on the outer wall surface of the box body 1, the connecting seat 20 surrounds the binding post 5 positioned outside the box body 1, a plurality of through holes for the wire 11 to enter are formed in the side wall surface of the connecting seat 20, the rubber sleeve 17 is installed in the through holes in a matched mode, and the side wall surface of the connecting seat 20 is provided with a folded edge for water proofing and dust proofing. The connecting seat 20 adopts a flanging process, so that the waterproof and dustproof effects can be achieved effectively, and the binding post 5 is protected; the wire inlet through holes on the side wall surface of the connecting seat 20 are matched with the rubber sleeve 17, so that the cable 11 can be fixed, and the cable 11 is prevented from being cut.
The box body 1 is hermetically installed with the cover plate 2 through the rubber strip 18, and the cover plate 2 is square sheet-shaped and is provided with a hem for water proofing and dust proofing around. The cover plate 2 seals the whole junction box, and the edge folding process can effectively prevent water and dust.
The installation process of the utility model is as follows:
three binding posts 5 are arranged on the side wall of the box body 1 through wire inlet holes 7, one end of each binding post 5 is positioned in a connecting seat 20 outside the box body 1, the other end of each binding post 5 is positioned inside the box body 1 and is provided with a wiring stud 23, and a partition plate 6 and a fixing plate 3 divide the three binding posts 5 inside the box body 2 into three different wire inlet cavities 9;
the output cable of the high-voltage motor is a three-phase cable and comprises three cables 11;
the three cables 11 are respectively connected into the ends of three binding posts 5 in the connecting seat 20 through wire inlet through holes on the side wall of the connecting seat 20;
three power lines 12 are used, and a connector at one end of each power line is arranged on the outer circumferential surface of a wiring stud 23 through a locking nut 24, so that wiring conversion of a three-phase cable of the motor is completed;
three power lines 12 enter the wire outlet cavity 10 through the first wire outlet holes 4 on the end face of the fixed plate 3 respectively, the three power lines 12 and two ground wires 13 are combined into a bus, and the bus passes through the junction box through the second wire outlet holes 8;
and connecting the bus with an external control cabinet.
According to the utility model, the fixing plate 3 and the two partition plates 6 are arranged, so that the interior of the box body 1 is divided into the wire outlet cavity 10 and the three wire inlet cavities 9 which are not communicated with each other, and the wiring nuts 23 of the wiring posts 5 are respectively positioned in the three independent wire inlet cavities 9, thereby realizing electrical isolation and ensuring the safety of the wiring box; meanwhile, the first locking screw sleeve 15, the second locking screw sleeve 16 and the rubber sleeve 17 are arranged to fix and limit the cable 11 and the power line 12, so that the cable can be effectively prevented from shaking, and the working stability of the junction box is guaranteed.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (10)
1. A shielded high voltage junction box, characterized in that: the box comprises a box body (1) with an opening at the top, wherein two independent cavities are separated from the box body (1) through a fixing plate (3), one cavity is used as an outgoing cavity (10) for outgoing lines of a power line (12), and the other cavity is separated from a plurality of independent incoming line cavities (9) through a plurality of separation plates (6);
a wire inlet hole (7) is formed in the side wall surface of the single wire inlet cavity (9), and a binding post (5) for connecting an external cable (11) and an internal power wire (12) is mounted in the wire inlet hole (7) in a matched manner;
the end face of the fixed plate (3) is provided with a plurality of first wire outlet holes (4) for leading out wires of power wires (12) in the wire inlet cavity (9), and a first locking screw sleeve (15) is arranged in each first wire outlet hole (4) in a matched mode;
a second wire outlet hole (8) for the wire outlet of the power wire (12) in the wire outlet cavity (10) is formed in the side wall surface of the wire outlet cavity (10), and a second locking screw sleeve (16) is mounted in the second wire outlet hole (8) in a matched mode;
the box body (1) is provided with a cover plate (2) in a sealing manner at an opening, the cover plate (2) surrounds the opening of the box body (1), a plurality of grounding studs (14) are also mounted on the side wall surface of the wire outlet cavity (10) in a matching manner, the single grounding stud (14) is connected with a ground wire (13), and each ground wire (13) is led out through a second wire outlet hole (8).
2. A shielded high voltage cable box according to claim 1, wherein: the partition board (6) is made of epoxy resin.
3. A shielded high voltage cable box according to claim 1, wherein: the wiring terminal (5) adopts a porcelain bottle wiring terminal, and a pin (22) for fixing the cable (11) is arranged in the porcelain bottle wiring terminal.
4. A shielded high voltage cable box according to claim 1, wherein: the terminal (5) is located the terminal stud (23) that is provided with the copper material in the wire cavity (9).
5. A shielded high-voltage cable box according to claim 4, wherein: the wiring stud (23) is connected with the power line (12) through a locking nut (24).
6. A shielded high voltage cable box according to claim 1, wherein: the inner wall surface of the box body (1) is provided with a plurality of pressure release grooves (21), the pressure release grooves (21) are communicated with the cavity inside the box body (1), and the pressure release grooves (21) are filled with sealant.
7. A shielded high voltage cable box according to claim 1, wherein: the first locking screw sleeve (15) and the second locking screw sleeve (16) are made of stainless steel, the first locking screw sleeve (15) shields electromagnetic interference between the wire inlet cavity (9) and the wire outlet cavity (10), and the second locking screw sleeve (16) shields electromagnetic interference between the wire outlet cavity (10) and the external environment.
8. A shielded high voltage cable box according to claim 1, wherein: install connecting seat (20) on the outer wall surface of box body (1), connecting seat (20) surround terminal (5) that are located the outside of box body (1), be provided with the through-hole that the several is used for cable (11) to go into the line on the lateral wall surface of connecting seat (20), rubber sleeve (17) are installed to the through-hole fit in, are provided with the hem that is used for waterproof dirt-proof on the lateral wall surface of connecting seat (20).
9. A shielded high voltage cable box according to claim 1, wherein: the box body (1) is installed with the cover plate (2) in a sealing mode through the rubber strips (18), and the cover plate (2) is square-sheet-shaped and is provided with folded edges for water proofing and dust proofing around.
10. A shielded high voltage cable box according to claim 1, wherein: the partition board (6) is hermetically installed with the box body (1) through a sealing strip (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321329696.3U CN219833691U (en) | 2023-05-29 | 2023-05-29 | Shielded high-voltage wiring box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321329696.3U CN219833691U (en) | 2023-05-29 | 2023-05-29 | Shielded high-voltage wiring box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219833691U true CN219833691U (en) | 2023-10-13 |
Family
ID=88274617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321329696.3U Active CN219833691U (en) | 2023-05-29 | 2023-05-29 | Shielded high-voltage wiring box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219833691U (en) |
-
2023
- 2023-05-29 CN CN202321329696.3U patent/CN219833691U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214161 No. 6, Xiangge Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee after: Malong Tong Electric (Wuxi) Co.,Ltd. Country or region after: China Address before: 214161 No. 6, Xiangge Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee before: REGAL BELOIT ELECTRICAL (WUXI) CO.,LTD. Country or region before: China |