CN203589559U - Low-voltage current transformer type movable plug-in - Google Patents
Low-voltage current transformer type movable plug-in Download PDFInfo
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- CN203589559U CN203589559U CN201320739612.3U CN201320739612U CN203589559U CN 203589559 U CN203589559 U CN 203589559U CN 201320739612 U CN201320739612 U CN 201320739612U CN 203589559 U CN203589559 U CN 203589559U
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Abstract
The utility model discloses a low-voltage current transformer type movable plug-in, which comprises a movable plug-in body, a movable plug, a primary connection terminal, a conductive copper bar integrated with the movable plug and the primary connection terminal, and an iron core coil embedded in the movable plug-in body, wherein the conductive copper bar penetrates through a current transformer formed by the iron core coil, a primary winding of the current transformer is connected with the primary connection terminal, the external part of the movable plug-in body is provided with a shell in a plastic package mode, the shell is provided with a secondary connection terminal, a secondary winding of the iron core coil is connected to the secondary connection terminal through a wire. According to the scheme disclosed by the utility model, the current transformer in a drawer unit is arranged in a mode of being integrated with the movable plug-in, thereby reducing the number of components in the drawer unit, and saving the space. Meanwhile, the iron core coil of the current transformer is embedded in the movable plug-in, thereby saving the plastic package shell process of the current transformer, reducing the production cost, and being energy saving and environment friendly. The movable plug-in has the advantageous performances of high safety, easy processing, and abilities of saving the cost and the installation space.
Description
Technical field
The utility model relates to low-voltage electrical apparatus complete set of equipments technical field, and especially a kind of low-voltage current mutual inductor formula is moved plug-in unit.
Background technology
At present, low voltage complete set adopts pull-out type case, cabinet form more and more, this form can make to be subject to the electric unit of the purposes such as electricity, feed, contact all can in pull-out type case, to assemble, after will insert in drawing-out type cabinet cordwood system type and form power supply-distribution system, there is the advantages such as compact conformation, easy to maintenance, capacity adjustability is good.
Low-voltage current mutual inductor is according to electromagnetic induction principle, and primary current larger numerical value is converted to the secondary current that numerical value is less by certain no-load voltage ratio, is used for protecting, the purposes such as measurement, is widely used in low-voltage electrical complete set of equipments; Plug-in unit of low pressure is for the pull-out type loop of low voltage drawing-out switching carbinet, by dynamic and static plug-in unit, plugged together being connected of outlet switch and power supply and load.
Because low voltage drawing-out switching carbinet adopts modularized design, safe and reliable, safeguard that cylinder is single, on market, be widely applied.The drawer type outlet loop of low voltage drawing-out switching carbinet is by plugging together of a sound plug-in unit and being connected of power supply and load, by low-voltage current mutual inductor, primary current larger numerical value is converted to the secondary current that numerical value is less by certain no-load voltage ratio again, by secondary line connection table meter, measure line loop electric current.
But; in the drawer in drawer type outlet loop, generally all need to be equiped with numerous components and parts such as operating mechanism, current transformer, measuring instrument, indicator light, fuse, moving plug-in unit, cable, secondary electric wire and a conducting copper of switch, switch; even also require the components and parts such as installing A.C. contactor, thermal relay, motor protector, auxiliary relay; this just causes, and in drawer unit, element is numerous, system is numerous and jumbled, and components and parts installing space is narrow and small.And the large portion of low-voltage current mutual inductor used is plastic casing in the market, also need to carry out extra plastic package process, this has just increased injection molding process, has increased production cost, is also unfavorable for energy-conserving and environment-protective.
Utility model content
The purpose of this utility model is to provide a kind of low-voltage current mutual inductor formula to move plug-in unit, and in order to solve, in prior art, in drawer type outlet loop, components and parts are numerous, system is numerous and jumbled, the problem that components and parts installing space is narrow and small.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The moving plug-in unit of a kind of low-voltage current mutual inductor formula, comprise moving insert body, moving plug, primary connection termination, with the conducting copper of moving plug and primary connection termination one and be embedded in the iron-core coil in moving insert body, conducting copper forms current transformer through iron-core coil, a winding of current transformer connects primary connection termination, moving insert body external plastic has shell, and shell is provided with secondary wiring terminals, and the secondary winding of iron-core coil is connected to secondary wiring terminals by wire.
Preferably, described current transformer and the moving plug-in unit setting that unites two into one.
Preferably, described primary connection termination is connected with the switch in drawer unit.
Preferably, described moving plug connects static socket, and static socket connects power supply or load.
Preferably, described secondary wiring terminals is by wire and Instrument connection.
As mentioned above, a kind of low-voltage current mutual inductor formula of the present utility model is moved plug-in unit, and the current transformer in drawer unit and moving plug-in unit are united two into one, and has reduced the component number in drawer unit, has saved space; And iron-core coil is embedded in moving plug-in unit, has saved the plastic packaging envelope process of current transformer, reduced production cost, energy-conserving and environment-protective, the superior function that the moving plug-in unit of this programme has high safety, is easy to processing, saves cost, saves installing space.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail;
Fig. 1 is the front view of the moving plug-in unit of a kind of low-voltage current mutual inductor formula in the utility model embodiment;
Fig. 2 is part (the moving plug-in unit bottom) cutaway view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
In Fig. 1 to Fig. 3,
Moving insert body 1, iron-core coil 2, shell 3, primary connection termination 4, moving plug 5, secondary wiring terminals 6.
Embodiment
By specific instantiation, execution mode of the present utility model is described below, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.The utility model can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present utility model.
Incorporated by reference to Fig. 1, shown in Fig. 2 and Fig. 3, it is the front view of the moving plug-in unit of a kind of low-voltage current mutual inductor formula of the present utility model, partial sectional view and left view, for realizing, low-voltage alternating-current system high-current can be dropped in proportion to the moving plug-in unit of low-voltage current mutual inductor formula that can directly measure by instrument numerical value, applicable to exchanging 50Hz, rated voltage 690V and following indoor low-voltage electrical complete set of equipments, it comprises moving insert body 1, moving plug 5, primary connection termination 4, with the conducting copper of moving plug 5 and primary connection termination 4 one and be embedded in the iron-core coil 2 in moving insert body 1, conducting copper forms current transformer through iron-core coil 2, a winding of current transformer connects primary connection termination 4, moving insert body 1 external plastic has shell 3, shell 3 is provided with secondary wiring terminals 6, the secondary winding of iron-core coil 2 is connected to secondary wiring terminals 6 by wire.The setting that in such scheme, current transformer and moving plug-in unit united two into one, both integrate, and have reduced manufacturing process technique, have reduced the component number in drawer unit, have saved space, have reduced production cost.
Wherein, current transformer is comprised of winding, secondary winding and conducting copper, housing and a binding post of mutually insulated, its operation principle is identical with transformer, the number of turn of a winding is few, directly be series in power circuit, when one time load current passes through a winding, the alternating flux induction of generation produces the secondary current reducing in proportion, the number of turn of secondary winding is more, connects and forms closed-loop path with the secondary load of the iron-core coil 2 such as external meters; Also be that energy is conservation, power is equal, and because of P=UI, voltage is to be directly proportional with the number of turn of iron-core coil 2 again, and current ratio is exactly the inverse ratio of the number of turn, to realize boosting, falls stream.
The moving plug-in unit of low-voltage current mutual inductor formula of this programme, by conducting copper, plug spring leaf, iron-core coil 2 through single injection-molded, the same with insert shape and mounting means at work, by moving plug 5, be connected with static socket, static socket connects power supply or load connects, by primary connection termination 4, be connected with the switch in drawer unit, secondary wiring terminals 6 is by wire and Instrument connection, realization is converted to by certain no-load voltage ratio the secondary current that numerical value is less by primary current larger numerical value, to measure etc.
A kind of low-voltage current mutual inductor formula of the present utility model is moved plug-in unit, and the current transformer in drawer unit and moving plug-in unit are united two into one, and has reduced the component number in drawer unit, has saved space; And iron-core coil 2 is embedded in moving plug-in unit, saved the plastic packaging envelope process of current transformer, reduced production cost, also reached the object of energy-conserving and environment-protective, the superior function that the moving plug-in unit of this programme has high safety, is easy to processing, saves cost, saves installing space.So the utility model has effectively overcome various shortcoming of the prior art and has had high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (5)
1. the moving plug-in unit of low-voltage current mutual inductor formula, it is characterized in that, comprise moving insert body, moving plug, primary connection termination, with the conducting copper of moving plug and primary connection termination one and be embedded in the iron-core coil in moving insert body, conducting copper forms current transformer through iron-core coil, a winding of current transformer connects primary connection termination, moving insert body external plastic has shell, shell is provided with secondary wiring terminals, and the secondary winding of iron-core coil is connected to secondary wiring terminals by wire.
2. the moving plug-in unit of low-voltage current mutual inductor formula according to claim 1, is characterized in that, the setting that unites two into one of described current transformer and moving plug-in unit.
3. the moving plug-in unit of low-voltage current mutual inductor formula according to claim 1, is characterized in that, described primary connection termination is connected with the switch in drawer unit.
4. the moving plug-in unit of low-voltage current mutual inductor formula according to claim 1, is characterized in that, described moving plug connects static socket, and static socket connects power supply or load.
5. the moving plug-in unit of low-voltage current mutual inductor formula according to claim 1, is characterized in that, described secondary wiring terminals is by wire and Instrument connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739612.3U CN203589559U (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type movable plug-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739612.3U CN203589559U (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type movable plug-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589559U true CN203589559U (en) | 2014-05-07 |
Family
ID=50587412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739612.3U Expired - Fee Related CN203589559U (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type movable plug-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203589559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633577A (en) * | 2013-11-20 | 2014-03-12 | 上海宝临电气集团有限公司 | Low-voltage current transformer type primary movable plug-in |
| CN112271629A (en) * | 2020-10-30 | 2021-01-26 | 重庆望变电气（集团）股份有限公司 | Low-voltage drawer type switch cabinet |
-
2013
- 2013-11-20 CN CN201320739612.3U patent/CN203589559U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633577A (en) * | 2013-11-20 | 2014-03-12 | 上海宝临电气集团有限公司 | Low-voltage current transformer type primary movable plug-in |
| CN103633577B (en) * | 2013-11-20 | 2016-03-02 | 上海宝临电气集团有限公司 | Low-voltage current transformer type is dynamic plug-in unit once |
| CN112271629A (en) * | 2020-10-30 | 2021-01-26 | 重庆望变电气（集团）股份有限公司 | Low-voltage drawer type switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20161120 |