CN109473885B - Terminal box capable of being replaced in electrified mode - Google Patents
Terminal box capable of being replaced in electrified mode Download PDFInfo
- Publication number
- CN109473885B CN109473885B CN201810936172.8A CN201810936172A CN109473885B CN 109473885 B CN109473885 B CN 109473885B CN 201810936172 A CN201810936172 A CN 201810936172A CN 109473885 B CN109473885 B CN 109473885B
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- Prior art keywords
- side plate
- plate
- box body
- terminal box
- polyester fiber
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- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 229920000728 polyester Polymers 0.000 claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 230000001427 coherent effect Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 18
- 230000007547 defect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 8
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention provides a terminal box capable of being replaced in a charged mode, which comprises a main box body positioned on the upper portion and a bottom box body positioned on the lower portion, wherein the bottom box body comprises a pair of lower side plates, the main box body is provided with a pair of upper side plates, a transverse ceramic insulating block is arranged on the inner side of the outer side plate of each lower side plate, and the tail end of each ceramic insulating block is connected with a first heating resistor disc; one side of the inner side plate of the lower side plate is also provided with a longitudinal ceramic insulating block which is parallel to the inner side plate, the tail end of the longitudinal ceramic insulating block is provided with a second heating resistor disc, and the first heating resistor disc and the second heating resistor disc are connected and communicated; and a polyester fiber sheet is arranged between the upper side plate and the lower side plate to fix the resistor disc. The invention solves the defects that the existing terminal box can be disassembled and assembled only by cutting the terminal box with cutting equipment when being replaced, the operation is complicated, sparks are easy to occur in the cutting process, and the safety risk is higher.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a terminal box capable of being replaced in a charged mode.
Background
The current injection wiring terminal box is a switching construction line, marks branch lines and provides a convenient interface device for wiring and line inspection. In some cases, in order to facilitate construction and debugging, some products which are more special and are regularly installed, such as short-circuit isolators and the like, can be installed in the wiring terminal box. With the continuous development of power grids, the number of switch terminal boxes which are aged and rusted is increasing. The traditional process for replacing the switch terminal box is generally combined with power failure treatment, and a cable in the terminal box is detached and pulled away. The combination of disconnecting and connecting secondary cables and loop test work generally requires a three to five day replacement cycle and presents a greater safety risk. The existing terminal box can be disassembled and assembled only by cutting the terminal box through cutting equipment, the operation is complex, sparks are easy to occur in the cutting process, and the terminal box has a large safety risk.
The conventional patent document CN201721783618.5 discloses a patent document "dc load terminal box convenient for cable installation", in which a cutting device is required to cut the terminal box to complete the assembly and disassembly during the replacement, which is complicated in operation, and the cutting process is prone to spark, thereby causing a great safety risk.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a terminal box for live replacement, which solves the defects that the existing terminal box needs to be replaced by cutting off the terminal box by using cutting equipment to complete disassembly and assembly, the operation is complicated, sparks are easy to occur in the cutting process, and the safety risk is higher.
(II) technical scheme
In order to solve the technical problem, the invention provides a terminal box capable of being replaced in a charged mode, which comprises a main box body positioned on the upper portion and a bottom box body positioned on the lower portion, wherein the main box body and the bottom box body form a sealed box body; the bottom end face of the upper side plate is provided with an inner side plate, one side of the inner side plate is also provided with a longitudinal ceramic insulating block parallel to the inner side plate, the tail end of the longitudinal ceramic insulating block is provided with a second heating resistance chip, the rear end of the second heating resistance chip is provided with a transversely bent contact piece, the contact piece is used for contacting the first heating resistance chip, so that the first heating resistance chip and the second heating resistance chip are connected and communicated, and the front end face of the second heating resistance chip is welded with a negative terminal; the heating resistor is characterized in that a polyester fiber sheet is arranged between the upper side plate and the lower side plate, a transverse clamping groove matched with the first heating resistor sheet is formed in the outer side of the polyester fiber sheet, and a longitudinal clamping groove matched with the second heating resistor sheet is formed in the top end of the polyester fiber sheet. According to the invention, the polyester fiber sheet is arranged between the upper side plate and the lower side plate, the first heating resistance sheet and the second heating resistance sheet are connected and connected without being externally connected with an external power supply, the main box body positioned at the upper part and the bottom box body positioned at the lower part are fixed together by heating and melting, the box body does not need to be cut, the mounting and dismounting are convenient and fast, the sealing performance is good, no electric spark exists, and the defects that the terminal box needs to be cut by cutting equipment when the conventional terminal box is replaced, the dismounting can be completed, the operation is complicated, the spark is easy to occur in the cutting process, and the safety risk is high are overcome.
Preferably, the bottom end face of the upper side plate is further provided with a strip-shaped groove, and the strip-shaped groove and the second heating resistor are arranged in parallel. Due to the action of gravity, the molten low-melting-point polyester fiber liquid is easier to permeate downwards, so that the adhesion force of the low-melting-point polyester fiber and the upper side is poor. The invention is provided with the strip-shaped groove, and after the polyester fiber sheet is melted, the liquid permeates into the strip-shaped groove under the action of Van der Waals molecular force and liquid surface tension, so that the adhesive force between the melted low-melting-point polyester fiber and the upper side plate is increased.
Preferably, the cross section of the strip-shaped groove is semicircular. The semi-circular section is arranged, so that when liquid seeps under the action of van der Waals molecular force and liquid surface tension, the liquid is more fit with the arc-shaped contact interface of the liquid. While the low-melting polyester fiber has higher melt thickness viscosity and higher liquid surface tension.
Preferably, the width of the strip-shaped groove is 0.5-0.7 mm. Because the low-melting-point polyester fiber has higher melt thickness viscosity and higher liquid surface tension, the invention is convenient to set larger width and improves the adhesion effect.
Preferably, the bottom box body is further provided with a lower front side plate and a lower rear side plate, the lower front side plate and the lower rear side plate are provided with a left jointed plate and a right jointed plate, and the left jointed plate and the right jointed plate are spliced into a coherent lower front side plate and a coherent lower rear side plate. The left jointed board and the right jointed board are arranged, so that the bottom box body can be directly disassembled and replaced without cutting, and the difficulty in disassembling and replacing is reduced.
Preferably, left makeup and right makeup are the axisymmetric structure, left makeup includes the mainboard and is located the terminal a pair of swash plate of mainboard, the swash plate inboard has 8 horizontal and spaced fins each other, the fin of left makeup and the fin of right makeup peg graft each other, constitute coherent lower front side board or lower posterior lateral plate with the mainboard. The lower front side plate or the lower rear side plate is formed by mutual insertion, the floor area of the bottom of the lower front side plate or the lower rear side plate is large, the lower front side plate or the lower rear side plate can stand without external force during disassembly and assembly, and the lower front side plate or the lower rear side plate is not easy to incline and convenient to disassemble and replace; meanwhile, the 8 fin plates have large contact area and good heat dissipation effect, and the sealing effect is better due to the multiple groups of fin plates which are mutually spliced.
Preferably, an included angle between the pair of inclined plates is an acute angle.
Preferably, the inner sloping plate is provided with a plurality of copper fins spaced from each other. And the copper fins are arranged, so that the heat dissipation effect is further optimized.
Preferably, the upper parts of the left jointed board and the right jointed board are respectively provided with an upper cover plate.
(III) advantageous effects
The invention provides a terminal box capable of being replaced in a charged state, which has the following advantages:
1. according to the invention, the polyester fiber sheet is arranged between the upper side plate and the lower side plate, the first heating resistance sheet and the second heating resistance sheet are connected and connected without being externally connected with an external power supply, the main box body positioned at the upper part and the bottom box body positioned at the lower part are fixed together by heating and melting, the box body does not need to be cut, the mounting and dismounting are convenient and fast, the sealing performance is good, no electric spark exists, and the defects that the terminal box needs to be cut by cutting equipment when the conventional terminal box is replaced, the dismounting can be completed, the operation is complicated, the spark is easy to occur in the cutting process, and the safety risk is high are overcome.
2. Due to the action of gravity, the molten low-melting-point polyester fiber liquid is easier to permeate downwards, so that the adhesion force of the low-melting-point polyester fiber and the upper side is poor. The invention is provided with the strip-shaped groove, and after the polyester fiber sheet is melted, the liquid permeates into the strip-shaped groove under the action of Van der Waals molecular force and liquid surface tension, so that the adhesive force between the melted low-melting-point polyester fiber and the upper side plate is increased.
3. The semi-circular section is arranged, so that when liquid seeps under the action of van der Waals molecular force and liquid surface tension, the liquid is more fit with the arc-shaped contact interface of the liquid. While the low-melting polyester fiber has higher melt thickness viscosity and higher liquid surface tension.
4. Because the low-melting-point polyester fiber has higher melt thickness viscosity and higher liquid surface tension, the invention is convenient to set larger width and improves the adhesion effect.
5. The left jointed board and the right jointed board are arranged, so that the bottom box body can be directly disassembled and replaced without cutting, and the difficulty in disassembling and replacing is reduced.
6. The lower front side plate or the lower rear side plate is formed by mutual insertion, the floor area of the bottom of the lower front side plate or the lower rear side plate is large, the lower front side plate or the lower rear side plate can stand without external force during disassembly and assembly, and the lower front side plate or the lower rear side plate is not easy to incline and convenient to disassemble and replace; meanwhile, the 8 fin plates have large contact area and good heat dissipation effect, and the sealing effect is better due to the multiple groups of fin plates which are mutually spliced.
Drawings
Fig. 1 is an external schematic view of a terminal box structure for live replacement according to embodiment 1 of the present invention;
fig. 2 is a partially enlarged schematic view of a connecting portion of an upper side plate and a lower side plate of a terminal box structure usable for live replacement according to embodiment 1 of the present invention;
fig. 3 is a partially enlarged structural schematic view of a lower side plate of a terminal box structure that can be used for live replacement according to embodiment 1 of the present invention;
fig. 4 is a partially enlarged structural view of the spliced portions of the left and right panels of the terminal box structure for hot-line replacement according to embodiment 1 of the present invention.
1. A main case 1; 2. a bottom box body; 3. a lower side plate; 4. an upper side plate; 5. an outer panel; 6. a transverse ceramic insulating block; 7. a first heat-generating resistor sheet; 8. a positive terminal; 9. an inner side plate; 10. a longitudinal ceramic insulating block; 11. a second heat-generating resistor sheet; 12. a contact piece; 13. a negative terminal; 14. a polyester fiber sheet; 15. a transverse clamping groove; 16. a longitudinal slot; 17. a strip-shaped groove; 18. a lower front side plate; 19. a lower rear side plate; 20. a left jointed board; 21. a right jointed board; 22. a sloping plate; 23. a fin plate; 24. copper fins; 25. an upper cover plate; 26. a main board.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, 2, 3 and 4, the terminal box for live replacement provided by the invention comprises a main box body 1 positioned at the upper part and a bottom box body 2 positioned at the lower part, wherein the main box body and the bottom box body form a sealed box body, the bottom box body comprises a pair of lower side plates 3, the main box body is provided with a pair of upper side plates 4, the top end surfaces of the lower side plates are provided with outer side plates 5, the inner sides of the outer side plates are provided with transverse ceramic insulating blocks 6, the tail ends of the transverse ceramic insulating blocks are connected with first heating resistance sheets 7, and the outer end surfaces of the first heating resistance sheets are welded with positive electrode connectors 8; an inner side plate 9 is arranged on the bottom end face of the upper side plate, a longitudinal ceramic insulating block 10 parallel to the inner side plate is further arranged on one side of the inner side plate, a second heating resistor disc 11 is arranged at the tail end of the longitudinal ceramic insulating block, a transversely bent contact sheet 12 is arranged at the rear end of the second heating resistor disc, the contact sheet is used for contacting the first heating resistor disc, the first heating resistor disc and the second heating resistor disc are connected and communicated, and a negative terminal 13 is welded on the front end face of the second heating resistor disc; a polyester fiber sheet 14 is arranged between the upper side plate and the lower side plate, a transverse clamping groove 15 matched with the first heating resistor sheet is arranged on the outer side of the polyester fiber sheet, and a longitudinal clamping groove 16 matched with the second heating resistor sheet is arranged at the top end of the polyester fiber sheet. The melting point of the polyester fiber sheet in the invention is 90-110 ℃.
The bottom end face of the upper side plate is also provided with a strip-shaped groove 17, and the strip-shaped groove and the second heating resistor are arranged in parallel. The section of the strip-shaped groove is semicircular. The width of the strip-shaped groove is 0.5-0.7 mm. The bottom box body is also provided with a lower front side plate 18 and a lower rear side plate 19, the lower front side plate and the lower rear side plate are provided with a left jointed plate 20 and a right jointed plate 21, and the left jointed plate and the right jointed plate are spliced into a coherent lower front side plate and a coherent lower rear side plate.
The utility model discloses a portable electronic device, including mainboard 26, left makeup and right makeup are the axisymmetric structure, left makeup includes mainboard 26 and a pair of swash plate 22 that is located the mainboard end, the swash plate inboard has 8 horizontal and spaced fin 23 each other, the fin of left makeup and the fin of right makeup are pegged graft each other, constitute coherent lower front side board or lower posterior lateral plate with the mainboard. An included angle between the pair of inclined plates is an acute angle. The inner swash plate is provided with a plurality of copper fins 24 spaced from each other. And the upper parts of the left jointed board and the right jointed board are respectively provided with an upper cover plate 25.
When the embodiment of the invention is implemented, the fin plate of the left jointed plate and the right jointed plate are mutually spliced to form a coherent lower front side plate or lower rear side plate with the main plate; through letting in power heating polyester fiber piece for polyester fiber piece melting can install the main tank body fast and end box, need not use the dismouting that has a power failure, also need not the electric cutterbar cutting box, brings extra risk.
Example 2:
the invention provides a terminal box capable of being replaced in a charged mode, which comprises a main box body positioned on the upper portion and a bottom box body positioned on the lower portion, wherein the main box body and the bottom box body form a sealed box body; the heating resistor comprises a lower side plate, an upper end face of the lower side plate is provided with an inner side plate, one side of the inner side plate is also provided with a longitudinal ceramic insulating block which is parallel to the inner side plate, the tail end of the longitudinal ceramic insulating block is provided with a second heating resistor disc, the rear end of the second heating resistor disc is provided with a transversely bent contact piece, the contact piece is used for contacting a first heating resistor disc, so that the first heating resistor disc and the second heating resistor disc are connected and communicated, and the front end face of the second heating resistor disc is welded with a negative terminal; the heating resistor is characterized in that a polyester fiber sheet is arranged between the upper side plate and the lower side plate, a transverse clamping groove matched with the first heating resistor sheet is formed in the outer side of the polyester fiber sheet, and a longitudinal clamping groove matched with the second heating resistor sheet is formed in the top end of the polyester fiber sheet.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode and the like of each component can be changed, and all equivalent changes and improvements made on the basis of the technical scheme of the present invention should not be excluded from the protection scope of the present invention.
Claims (7)
1. The terminal box capable of being replaced in an electrified way is characterized by comprising a main box body positioned at the upper part and a bottom box body positioned at the lower part, wherein the main box body and the bottom box body form a sealed box body; the bottom end face of the upper side plate is provided with an inner side plate, one side of the inner side plate is also provided with a longitudinal ceramic insulating block parallel to the inner side plate, the tail end of the longitudinal ceramic insulating block is provided with a second heating resistance chip, the rear end of the second heating resistance chip is provided with a transversely bent contact piece, the contact piece is used for contacting the first heating resistance chip, so that the first heating resistance chip and the second heating resistance chip are connected and communicated, and the front end face of the second heating resistance chip is welded with a negative terminal; a polyester fiber sheet is arranged between the upper side plate and the lower side plate, a transverse clamping groove matched with the first heating resistor sheet is formed in the outer side of the polyester fiber sheet, and a longitudinal clamping groove matched with the second heating resistor sheet is formed in the top end of the polyester fiber sheet; the bottom box body is also provided with a lower front side plate and a lower rear side plate, the lower front side plate and the lower rear side plate are provided with a left jointed plate and a right jointed plate, and the left jointed plate and the right jointed plate are spliced into a coherent lower front side plate and a coherent lower rear side plate; the utility model discloses a portable electronic device, including mainboard, left makeup and right makeup are the axisymmetric structure, left makeup includes the mainboard and is located the terminal a pair of swash plate of mainboard, the swash plate inboard has 8 horizontal and spaced fin boards each other, the fin board of left makeup and the fin board of right makeup are pegged graft each other, constitute coherent lower front side board or lower posterior lateral plate with the mainboard.
2. The terminal box for hot-line replacement according to claim 1, wherein a strip-shaped groove is further formed in the bottom end surface of the upper side plate, and the strip-shaped groove is juxtaposed with the second heat-generating resistor sheet.
3. The terminal box for hot swapping of claim 2, wherein the cross-section of the strip-shaped groove is semicircular.
4. The terminal box for hot swap according to claim 3, wherein the width of the strip groove is 0.5-0.7 mm.
5. The terminal box for hot swap according to claim 1, wherein the angle between the pair of sloping plates is acute.
6. The terminal box for hot swap according to claim 5, wherein the inside angled plate has a plurality of spaced copper fins.
7. The terminal box for hot swap of claim 1, wherein the top of each of the left and right panels has a top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936172.8A CN109473885B (en) | 2018-08-16 | 2018-08-16 | Terminal box capable of being replaced in electrified mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936172.8A CN109473885B (en) | 2018-08-16 | 2018-08-16 | Terminal box capable of being replaced in electrified mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109473885A CN109473885A (en) | 2019-03-15 |
| CN109473885B true CN109473885B (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810936172.8A Active CN109473885B (en) | 2018-08-16 | 2018-08-16 | Terminal box capable of being replaced in electrified mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473885B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119161A (en) * | 2015-07-30 | 2015-12-02 | 国网浙江省电力公司金华供电公司 | Terminal box |
| CN107069451A (en) * | 2017-03-03 | 2017-08-18 | 苏州市凯顺电器有限公司 | A kind of power distribution cabinet with rainproof function |
| WO2019045197A1 (en) * | 2017-08-30 | 2019-03-07 | 주식회사 비엠티 | Expanded assembly busbar |
-
2018
- 2018-08-16 CN CN201810936172.8A patent/CN109473885B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119161A (en) * | 2015-07-30 | 2015-12-02 | 国网浙江省电力公司金华供电公司 | Terminal box |
| CN107069451A (en) * | 2017-03-03 | 2017-08-18 | 苏州市凯顺电器有限公司 | A kind of power distribution cabinet with rainproof function |
| WO2019045197A1 (en) * | 2017-08-30 | 2019-03-07 | 주식회사 비엠티 | Expanded assembly busbar |
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| Publication number | Publication date |
|---|---|
| CN109473885A (en) | 2019-03-15 |
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