CN109066315B - Binding post protection device and direct current distribution panel - Google Patents
Binding post protection device and direct current distribution panel Download PDFInfo
- Publication number
- CN109066315B CN109066315B CN201810974967.8A CN201810974967A CN109066315B CN 109066315 B CN109066315 B CN 109066315B CN 201810974967 A CN201810974967 A CN 201810974967A CN 109066315 B CN109066315 B CN 109066315B
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- fixing frame
- terminal
- protection door
- door
- protection
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- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 29
- 238000012423 maintenance Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H02B1/14—Shutters or guards for preventing access to contacts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The embodiment of the application discloses a connecting terminal protection device, which comprises: a fixing frame, a protection door and a locking structure; one end of the fixing frame is fixedly arranged on the distribution panel, and the other end of the fixing frame is rotatably connected with the protective door; when the binding post is electrified, the fixing frame and the protection door form a locking structure, the protection door is in a closed state, and the protection door is blocked on the surface of the binding post. The technical scheme of the application solves the technical problem that when the capacity of a communication direct current power supply system with two sets of high-frequency switch power supplies sharing one set of direct current distribution panel is expanded, the wiring terminal at the operation side is easily loosened by mistake, so that the communication of the whole transformer substation is completely interrupted. The embodiment of the application also discloses a direct current distribution panel.
Description
Technical Field
The application relates to the technical field of electric power safety, in particular to a wiring terminal protection device and a direct current distribution panel.
Background
The power dispatching mechanism, 220kV and above power plants, transformer substations and communication relay stations all need to be provided with a communication direct current power supply system. The communication dc power supply system generally adopts a duplex configuration, i.e. two sets of independent high-frequency switch power supplies are configured, in general, one set of high-frequency switch power supply will be configured with one set of dc distribution board, but under the condition that the space of a machine room is limited, a situation that the two sets of high-frequency switch power supplies share one set of dc distribution board may also occur, as shown in fig. 1, fig. 1 is a front view of the existing dual-power dc distribution board, and the connection terminal 101 of the first power supply and the connection terminal 102 of the second power supply are both disposed in one dc distribution board.
With the increase of power communication service, the communication equipment of the transformer substation is continuously increased, the original communication power supply can not meet the power supply requirement of the newly-added communication equipment, and the capacity expansion transformation of the communication direct-current power supply system is required. When the capacity expansion transformation is carried out, one set of high-frequency switching power supply in the communication direct-current power supply system is in an overhauling state, and the other set of high-frequency switching power supply is in an operating state, so that all communication loads are required to be borne. When the capacity of the communication direct current power supply system sharing one set of direct current distribution panel for the two sets of high-frequency switch power supplies is expanded, as the wiring terminals of the two power supplies in the dual-power direct current distribution panel are very close to each other and are easy to mix up, once a maintainer mistakenly loosens the wiring terminals on the operation side, the communication of the whole transformer substation is completely interrupted, and the whole transformer substation is lost.
Disclosure of Invention
The embodiment of the application provides a wiring terminal protection device and a direct current distribution panel, which solve the technical problem that when a communication direct current power supply system with two sets of high-frequency switch power supplies sharing one direct current distribution panel is expanded, a wiring terminal at an operation side is easily loosened by mistake, so that the whole communication of a transformer substation is completely interrupted.
In view of this, a first aspect of the present application provides a terminal protection device, comprising: a fixing frame, a protection door and a locking structure;
One end of the fixing frame is fixedly arranged on the distribution panel, and the other end of the fixing frame is rotatably connected with the protection door;
When the binding post is electrified, the fixing frame and the protection door form locking through the locking structure, and the protection door is in a closed state and is blocked on the surface of the binding post.
Preferably, the locking structure specifically comprises a first electromagnetic lock and a second electromagnetic lock;
The first electromagnetic lock is arranged on the fixing frame, the second electromagnetic lock is arranged on the protection door, and the first electromagnetic lock and the second electromagnetic lock are electrically connected with the wiring terminal.
Preferably, the protection door is provided with a live display lamp, and the live display lamp is electrically connected with the wiring terminal.
Preferably, the protection door is made of transparent material.
Preferably, the protective door has an operation opening;
when the fixing frame and the protective door form a locking, the operation opening is opposite to the power switch of the distribution panel in position.
Preferably, the locking structure specifically comprises a locking coil and a locking piece, wherein one of the locking coil and the locking piece is arranged on the fixed frame, and the other locking coil and the locking piece is arranged on the protection door;
The locking coil is electrically connected with the wiring terminal.
Preferably, the fixing frame is connected with the protection door through a rotating shaft.
Preferably, the method further comprises: a limiting piece; when the wiring terminal is not electrified, the limiting piece is used for limiting the protection door in an opening state.
A second aspect of the present application provides a dc distribution panel comprising any one of the terminal protection devices provided in the first aspect above.
From the above technical solutions, the embodiment of the present application has the following advantages:
The embodiment of the application provides a binding post protection device, which comprises a fixing frame, wherein one end of the fixing frame is fixedly arranged on a distribution board, and the other end of the fixing frame is rotatably connected with a protection door; when the binding post is electrified, can form the shutting through the locking structure between mount and the protection door for the protection door can lock in the closed position, separates on binding post's surface.
The wiring terminal protection device can be respectively arranged on the wiring terminals of two sets of high-frequency switch power supplies of the communication direct-current power supply system, so that when the capacity is expanded, the protection door of the electrified side wiring terminal and the fixing frame form locking under the action of the locking structure, the protection door is blocked between an maintainer and the electrified wiring terminal, the maintainer is in an overhaul state for the side wiring terminal even if the side wiring terminal is mistakenly used, and the side wiring terminal is required to be overhauled, and the protection door cannot be blocked to operate the side wiring terminal, so that misoperation of the maintainer is prevented, and the risk of communication interruption of a whole station is greatly reduced.
Drawings
FIG. 1 is a front view of a prior art dual power DC panel;
FIG. 2 is a circuit diagram of a conventional dual configuration communication DC power supply system;
fig. 3 is a schematic perspective view of a terminal protection device according to an embodiment of the present application;
FIG. 4 is a top view of the terminal protection device shown in FIG. 3;
FIG. 5 is a side view of the terminal protection device of FIG. 3 with the protection door in an open position;
fig. 6 is a front view of a dual power dc distribution panel incorporating the terminal protection device shown in fig. 3.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a wiring terminal protection device, which solves the technical problem that when a communication direct current power supply system with two sets of high-frequency switch power supplies sharing a set of direct current distribution panel is expanded, the wiring terminal at the operation side is easily loosened by mistake, so that the whole communication of a transformer substation is completely interrupted.
The communication dc power supply system is generally configured in a duplex manner, i.e. two sets of high-frequency switching power supplies are provided, and fig. 2 is a circuit diagram of a conventional communication dc power supply system in a duplex manner, a first input 21 passes through a first control switch 23 and then establishes a first input bus, a second input 22 passes through a second control switch 24 and then establishes a second input bus, the first input bus and the second input bus are split into a plurality of branches, two branches are shown in the figure, namely a first branch 27 and a second branch 28, and branch output ends thereof are respectively converged and output after passing through a branch switch 25 and an isolation protection diode 26.
For ease of understanding, please refer to fig. 3, 4 and 5, fig. 3 is a schematic perspective view of a terminal protection device according to an embodiment of the present application, fig. 4 is a top view of the terminal protection device shown in fig. 3, and fig. 5 is a side view of a protection door 302 of the terminal protection device shown in fig. 3 in an opened state, the device includes: a fixing frame 301, a protective door 302 and a locking structure.
One end of the fixing frame 301 is fixedly installed on the distribution board, and plays a role of fixing and supporting the whole protection device, and the supporting fixing frame 301 can be set according to actual needs due to different internal structures of different distribution boards, so long as the components capable of fixing and supporting the protection device are all fixing frames 301 provided by the application, and the application is not limited in detail herein.
The other end of the fixing frame 301 is connected with a protection door 302, and specifically, the protection door 302 and the fixing frame 301 may be rotatably connected. There are many methods for implementing the rotational connection, for example, the protection door 302 may be hinged to the fixing frame 301, and the rotation is implemented by using a hinge, or the protection door 302 may be inserted into a circular hole by using a positioning element to implement the rotation, or, in this embodiment, the protection door 302 may be rotated around the rotation shaft 401 by setting the rotation shaft 401 at the connection position between the fixing frame 301 and the protection door 302.
When the connecting terminal is electrified, the high-frequency switching power supply connected with the connecting terminal is in an on state, if the capacity expansion operation is being performed, the other set of high-frequency switching power supply is in an overhauling state, and in order to prevent an overhauling person from mistakenly disconnecting the connecting terminal at the operation side, the protection door 302 of the protection device can be blocked between the overhauling person and the electrified connecting terminal, and the overhauling person cannot open the protection door 302.
Specifically, when the terminal is electrified, the locking structure can be used to lock the fixing frame 301 and the protection door 302, and of course, the protection door 302 is in a closed state and is blocked on the surface of the terminal, i.e. on the surface of the operation side of the terminal.
It should be noted that, the dc voltage of the communication dc power supply system is low, which generally includes 48V or 24V, and an maintainer directly performs a live operation on the live connection terminal on the operation side, so that the protection door 302 may use a common insulating material such as plastic; of course, if the protection device provided by the present application is used on other distribution panels with higher voltage levels, the protection door 302 may be made of a material with better insulation performance according to actual needs.
When used in a communication dc power supply system, the protection door 302 has a blocking effect even though it is in contact with the surface of the terminal, but it should be understood that some space is preferably reserved between the protection door 302 and the terminal, so that the blocking effect is better.
The locking structure capable of forming locking is various, for example, mechanical locking can be adopted, and the locking structure can be linked with a power switch corresponding to a wiring terminal, so that when the power switch is closed, the locking structure is linked to lock the protective door 302, and when the power switch is pulled, the locking structure is linked to enable the protective door 302 to be in locking contact; the locking coil may be an electrical lock, for example, the locking coil may be composed of a locking coil and a locking piece, both of which are separately disposed on the fixing frame 301 and the protective door 302, so that the locking coil may be electrically connected to a connection terminal, and when the connection terminal is electrified, the locking coil acts, and a striker in the locking coil is snapped into the locking piece to form a lock.
In this embodiment, the locking structure may be an electromagnetic lock, which includes a first electromagnetic lock 402 and a second electromagnetic lock 403, where the first electromagnetic lock 402 may be disposed on the fixing frame 301, and the second electromagnetic lock 403 may be disposed on the protection door 302, and both electromagnetic locks are electrically connected to the connection terminal. Thus, when the binding post is electrified, the first electromagnetic lock 402 and the second electromagnetic lock 403 are electrified, magnetic force is generated between the first electromagnetic lock 402 and the second electromagnetic lock, and the protection door 302 is locked, so that the protection door 302 is always blocked on the surface of the binding post, when the binding post is not electrified, the protection door 302 is in locking contact with the fixing frame 301, the protection door 302 can be opened, and the binding post is exposed, so that maintenance can be performed.
It should be noted that, the first electromagnetic lock 402 and the second electromagnetic lock 403 should be disposed as close to the rotational connection position as possible, for example, in this embodiment, the first electromagnetic lock 402 is disposed at an end of the fixing frame 301 connected to the protection door 302, and the second electromagnetic lock 403 is disposed at an end of the protection door 302 connected to the fixing frame 301, so that the distance between the two electromagnetic locks is relatively short, so that the locking is more reliable.
Furthermore, when the two electromagnetic locks are electrically connected with the wiring terminal, the two electromagnetic locks can be directly electrically connected with the power supply on the side, so that the two electromagnetic locks are equivalent to indirectly electrically connected with the wiring terminal, but more convenient in wiring.
The protection device provided by the embodiment of the application is arranged on the distribution board to block and protect the wiring terminal, but besides the operation of the wiring terminal, the wiring terminal is also required to be visually inspected during the maintenance of the distribution board, so that the protection door 302 can be made of transparent materials, the shielding of the wiring terminal is avoided, the inspection of the wiring terminal is facilitated, and the hidden trouble of accidents such as loosening of the wiring terminal is reduced.
In order to better remind the service personnel, the protection door 302 may be provided with a charging display lamp 304, where the charging display lamp 304 should be electrically connected to the connection terminal, and also may be electrically connected to the power supply of the side for convenience of connection, so that when the side connection terminal is charged, the charging display lamp 304 may be turned on, thereby reminding the service personnel that the side connection terminal is in a charged state.
Specifically, the live display lamp 304 may be an LED lamp, and for better reminding effect, the LED lamp may be set to have a character with a safety warning effect, for example, in this embodiment, the LED lamp is an LED lamp with a character of "no touch with electricity".
In consideration of the fact that the operation switch of the power supply may be disposed near the connection terminal, in the dual-power dc distribution panel of the communication dc power supply system, there may be cases where the power switches of two sets of high-frequency switching power supplies are respectively located at both sides of the connection terminal, as shown in fig. 1, the first power switch 103 is disposed at the left side of the connection terminal 101 of the first power supply, and the second power switch 104 is disposed at the right side of the connection terminal 102 of the second power supply, at this time, the protection door 302 may also form a barrier to the power switches when the latch is closed, and may cause inconvenience to the operator, and therefore, the operation opening 303 may be disposed on the protection door 302, and should be disposed at a position corresponding to the power switches, so that the operation of the power switches is not blocked when the connection terminal is electrified, and the protection door 302 and the fixing frame 301 form a latch.
Referring to fig. 6, fig. 6 is a front view of a dual power common dc distribution board with the terminal protection device shown in fig. 3.
When the connecting terminal is not electrified, the locking between the protective door 302 and the fixing frame 301 is released, the protective door 302 can be opened from a closed state, and an maintainer can overhaul the connecting terminal. However, during maintenance operation, the protection door 302 may be closed again due to careless collision or other reasons, so that in order to facilitate the maintenance personnel to operate the wiring terminal, a limit piece in an open state may be provided for the protection door 302, and when the wiring terminal is not electrified, the protection door 302 may be limited in an open state with a certain opening degree, thereby providing certain convenience for the operation of the operator.
According to the wiring terminal protection device provided by the embodiment of the application, when the wiring terminal protection device is matched with the wiring terminal of the distribution board, a lock can be formed when the wiring terminal is electrified, so that a protection door is blocked between an maintainer and the wiring terminal, and the maintainer is prevented from operating the wiring terminal on the side in operation by mistake; especially when carrying out the dilatation to communication direct current power supply system, one set of power is in the maintenance state, and the total station relies on another set of power to maintain the communication, and at this moment, if two sets of high frequency switch power's binding post have all supporting the binding post protection device that the application provided, electrified side binding post obtains the separation of protection door, even the maintainer is in the maintenance state for this side's binding post by mistake, want to overhaul this side's binding post, also because the separation of protection door can't operate this side's binding post, thereby can prevent maintainer maloperation, greatly reduced the risk of total station communication interruption.
The embodiment of the application also provides a direct current distribution board, which comprises any of the above-mentioned wiring terminal protection devices, and the detailed description is omitted herein.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. A terminal protection device, comprising: the device comprises a fixing frame, a protective door, a locking structure and a limiting piece;
One end of the fixing frame is fixedly arranged on the distribution panel, and the other end of the fixing frame is rotatably connected with the protection door;
When the wiring terminal is electrified, the fixing frame and the protection door form locking through the locking structure, and the protection door is in a closed state and is blocked on the surface of the wiring terminal;
The locking structure specifically comprises a first electromagnetic lock and a second electromagnetic lock;
the first electromagnetic lock is arranged on the fixing frame, the second electromagnetic lock is arranged on the protection door, and the first electromagnetic lock and the second electromagnetic lock are electrically connected with the wiring terminal;
when the wiring terminal is not electrified, the limiting piece is used for limiting the protection door in an opening state.
2. The terminal protection device according to claim 1, wherein the protection door is provided with an electrified display lamp electrically connected with the terminal.
3. The terminal protection device of claim 2, wherein the protective door is a transparent material.
4. A terminal protection device according to claim 3, wherein the protection door has an operation opening;
when the fixing frame and the protective door form a locking, the operation opening is opposite to the power switch of the distribution panel in position.
5. The terminal protection device of claim 1, wherein the latching structure specifically comprises a latching coil and a latching member, one of the latching coil and the latching member being disposed on the mount and the other being disposed on the protective door;
The locking coil is electrically connected with the wiring terminal.
6. The terminal protection device according to claim 1, wherein the fixing frame is connected to the protection door through a rotation shaft.
7. A direct current distribution panel comprising a terminal protection device according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974967.8A CN109066315B (en) | 2018-08-24 | 2018-08-24 | Binding post protection device and direct current distribution panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974967.8A CN109066315B (en) | 2018-08-24 | 2018-08-24 | Binding post protection device and direct current distribution panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066315A CN109066315A (en) | 2018-12-21 |
| CN109066315B true CN109066315B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810974967.8A Active CN109066315B (en) | 2018-08-24 | 2018-08-24 | Binding post protection device and direct current distribution panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109066315B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072481B (en) * | 2020-07-20 | 2023-08-01 | 广东电网有限责任公司 | Baffle is arranged to wiring end |
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|---|---|---|---|---|
| JP2000316208A (en) * | 1999-04-27 | 2000-11-14 | Kawamura Electric Inc | Box for housing electric machinery and apparatus |
| CN201061090Y (en) * | 2007-07-19 | 2008-05-14 | 华为技术有限公司 | DC distributing equipment and communication cabinet |
| CN202616637U (en) * | 2012-06-15 | 2012-12-19 | 福建水口发电集团有限公司 | CT (Computerized Tomography) secondary test terminal operating and locking device |
| CN203135225U (en) * | 2013-03-25 | 2013-08-14 | 马光彬 | Isolation operation case |
| CN104201574A (en) * | 2014-09-18 | 2014-12-10 | 芜湖九鼎电子科技有限公司 | Device and method for monitoring power distribution cabinets |
| CN205583378U (en) * | 2016-03-08 | 2016-09-14 | 国网山东省电力公司高唐县供电公司 | Terminal protection device |
| CN206016447U (en) * | 2016-08-26 | 2017-03-15 | 首钢京唐钢铁联合有限责任公司 | Regulator cubicle maintenance safety is locked |
| CN208522253U (en) * | 2018-08-24 | 2019-02-19 | 广东电网有限责任公司 | A kind of connecting terminal protective device and DC distributor |
-
2018
- 2018-08-24 CN CN201810974967.8A patent/CN109066315B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000316208A (en) * | 1999-04-27 | 2000-11-14 | Kawamura Electric Inc | Box for housing electric machinery and apparatus |
| CN201061090Y (en) * | 2007-07-19 | 2008-05-14 | 华为技术有限公司 | DC distributing equipment and communication cabinet |
| CN202616637U (en) * | 2012-06-15 | 2012-12-19 | 福建水口发电集团有限公司 | CT (Computerized Tomography) secondary test terminal operating and locking device |
| CN203135225U (en) * | 2013-03-25 | 2013-08-14 | 马光彬 | Isolation operation case |
| CN104201574A (en) * | 2014-09-18 | 2014-12-10 | 芜湖九鼎电子科技有限公司 | Device and method for monitoring power distribution cabinets |
| CN205583378U (en) * | 2016-03-08 | 2016-09-14 | 国网山东省电力公司高唐县供电公司 | Terminal protection device |
| CN206016447U (en) * | 2016-08-26 | 2017-03-15 | 首钢京唐钢铁联合有限责任公司 | Regulator cubicle maintenance safety is locked |
| CN208522253U (en) * | 2018-08-24 | 2019-02-19 | 广东电网有限责任公司 | A kind of connecting terminal protective device and DC distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109066315A (en) | 2018-12-21 |
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