CN2786757Y - Rectangular mutual inductor for safe switch equipment - Google Patents
Rectangular mutual inductor for safe switch equipment Download PDFInfo
- Publication number
- CN2786757Y CN2786757Y CN 200520057015 CN200520057015U CN2786757Y CN 2786757 Y CN2786757 Y CN 2786757Y CN 200520057015 CN200520057015 CN 200520057015 CN 200520057015 U CN200520057015 U CN 200520057015U CN 2786757 Y CN2786757 Y CN 2786757Y
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- vallecular cavity
- controlled switch
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- housing
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Abstract
The utility model relates to a rectangular mutual inductor used for a safety switching device, which comprises a shell and a current mutual inducting component, and is characterized in that the shell is a rectangular cavity which can be detachably arranged on the input end or the output end of the controlled switch of a safety switch, and is internally provided with at least one through hole which is enclosed by an annular groove cavity and can be penetrated by a conducting wire, and the current mutual inducting component is arranged in the annular groove cavity. The utility model adopts the structure which organically combines the current mutual inducting component with the rectangular shell which can be detachably and cooperatively arranged on the input end or the output end of the controlled switch of the safety switch, and is internally provided with at least one through hole which is enclosed by the annular groove cavity and can be penetrated by the conducting wire, so when the utility model is installed, the rectangular shell which is internally provided with the current mutual inducting component can be directly arranged on the output end or the input end of the controlled switch; installation is very convenient, structure is simple, the whole size of the safety switching device is effectively reduced, and the mechanical strength of the safety switching device is enhanced.
Description
Technical field
The utility model relates to the instrument transformer that a kind of control panel is used, the rectangle instrument transformer that particularly a kind of safety utilization of electric power switching device with functions such as electric leakage, overload, short circuit, phase shortages is used.
Background technology
Instrument transformer is the necessary vitals of control panel such as production electric leakage, overload, short circuit, phase shortage.Yet electric current that existing market is sold and zero sequence electric leakage instrument transformer, it all is to adopt circular iron core and be wound on the circular instrument transformer that the coil on this iron core is formed basically, the major defect of this instrument transformer is that volume is big, can't embed in the output and input port of controlled switch such as air switch, therefore it have to be installed on controlled switch other place in addition, the overall volume of the switching device that this has increased undoubtedly, both increased production cost, taken bigger installing space again, especially for three-phase control panel such as three-phase safe electric switchgear, because of it has a plurality of current transformers, so volume is huger, and install loaded down with trivial details, and in today of the dwelling house design concept of an inch of land is an inch of gold, the user is beyond affordability to be installed in bulky safety switching apparatus on oneself entrance, has therefore both made the safety utilization of electric power switch performances how advanced, function how promote the use of by powerful also being difficult to.
Summary of the invention
The purpose of this utility model is to solve the problem of above-mentioned existence, a kind of overall volume that both can effectively dwindle safety switching apparatus is provided and strengthens the mechanical strength of safety utilization of electric power switching device, and the rectangle instrument transformer used of structure safety switching apparatus simple, reliable, easy for installation again.
The technical solution of the utility model is achieved in that
The rectangle instrument transformer that safety switching apparatus described in the utility model is used, comprise housing and be installed on the interior electric current mutual inductance parts of this housing, be characterized in described housing be one be installed on removably safety switch controlled switch input or output end and its contain at least one and enclose the rectangular cavity body of the through hole that Gong the lead put places by annular vallecular cavity, described electric current mutual inductance part device is in described annular vallecular cavity.
Wherein, the concrete structure of above-mentioned housing and electric current mutual inductance parts can be provided with according to user's needs, as the annular vallecular cavity on the above-mentioned housing can be ring be arranged at around the above-mentioned housing inner chamber, and the output of controlled switch or the lead of each electrode on the input can be enclosed the vallecular cavity that places its through hole that surrounds, above-mentioned electric current mutual inductance parts can be served as reasons and can be flush-mounted in square iron core in the annular vallecular cavity around the above-mentioned housing inner chamber and the zero sequence formed of the coil on this square iron core instrument transformer that leaks electricity around the home; Annular vallecular cavity on the above-mentioned housing can also serve as reasons ring be arranged at around the above-mentioned housing inner chamber, and the output of controlled switch or each electrode on the input can be enclosed that the vallecular cavity that places its through hole vertically is arranged at this through hole with at least one and the enclosing of rib be combined into that be connected that housing be separated into the trough of belt chamber of a plurality of small through hole places vallecular cavity around each small through hole, above-mentioned electric current mutual inductance parts to serve as reasons can be flush-mounted in respectively at least one square iron core in the vallecular cavity around each small through hole on the above-mentioned housing and the current transformer formed of the coil on each square iron core around the home respectively.
More convenient for the utility model is installed, the sidewall that above-mentioned connection rib faces controlled switch be provided with can with the output of controlled switch or the location convex tendon of input adapting device.
The utility model since adopt with electric current mutual inductance parts and removably with safety switch in controlled switch input or output the end adapting device and its contain at least one is enclosed the rectangle housing combination of the through hole that Gong the lead put places by annular vallecular cavity structure, thereby when the utility model and controlled switch are installed, can directly device in it there be the rectangle casing device of electric current mutual inductance parts in the output or input of controlled switch, it is very convenient to install, structure is simple again, and has reduced the overall volume of safety switching apparatus effectively and strengthened its mechanical strength.And the concrete structure of above-mentioned housing and electric current mutual inductance parts can be provided with according to user's needs.In addition since its adopt connect in the middle on the rib be provided with can with the output of controlled switch or the location convex rib structure of input adapting device, further make its easy accessibility.The utility model is simple in structure, volume is little, easy for installation, and stable and reliable for performance when using, can be widely used on the various safe electric control equipment, especially be applied on the various safety switching apparatus with functions such as electric leakage, overload, short circuit, phase shortages.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is the structural representation after the utility model one embodiment removes interior plate;
Fig. 3 is the structural representation after another embodiment of the utility model removes interior plate.
Embodiment
As shown in Figure 1-Figure 3, the rectangle instrument transformer that safety switching apparatus described in the utility model is used, comprise housing 1 and be installed on electric current mutual inductance parts 2 in this housing 1, for making the utility model both can effectively reduce the overall volume of safety switching apparatus and simplifying its installation procedure, and structure is simple again, reliably, described housing 1 be one be installed on removably safety switch controlled switch input or output end and its contain at least one is enclosed the through hole 12 that Gong the lead put places by annular vallecular cavity 11 rectangular cavity body, described electric current mutual inductance parts 2 are installed in the described annular vallecular cavity 11, thereby when the utility model and controlled switch are installed, can directly device in it there be the rectangle housing 1 of electric current mutual inductance parts 2 to be installed in the output or input of controlled switch, it is very convenient to install, structure is simple again, and has reduced the overall volume of safety switching apparatus effectively and strengthened its mechanical strength.。Wherein, the concrete structure of above-mentioned housing 1 and electric current mutual inductance parts 2 can be provided with according to user's needs, as shown in Figure 2, annular vallecular cavity 11 on the above-mentioned housing comprise ring be arranged at around above-mentioned housing 1 inner chamber, and the output of controlled switch or the lead of each electrode on the input can be enclosed the vallecular cavity that places its through hole that surrounds 12, above-mentioned electric current mutual inductance parts 2 are served as reasons and can be flush-mounted in square iron core 21 in the vallecular cavity around above-mentioned housing 1 inner chamber and the zero sequence formed of the coil 22 on this square iron core 21 instrument transformer that leaks electricity around the home; As shown in Figure 3, above-mentioned annular vallecular cavity 11 can also be arranged at above-mentioned housing 1 inner chamber all around by ring, and the lead of the output of controlled switch or each electrode on the input can be enclosed that the vallecular cavity and at least one that is placed in one vertically is arranged at above-mentioned housing 1 middle part and the enclosing of rib 14 be combined intos that be connected that housing 1 middle part through hole 12 is separated into a plurality of small through hole 12 placed vallecular cavity around each small through hole 12, above-mentioned electric current mutual inductance parts 2 are served as reasons and can be flush-mounted on the above-mentioned housing 1 at least one square iron core 21 and current transformer of forming of the coil 22 on each square iron core 21 or the like around the home respectively in the annular vallecular cavity around each small through hole 12 respectively, the utility model adopts and to be provided with three to connect ribs on above-mentioned housing 1, and above-mentioned current transformer be to be made up of three square iron cores 21 and the coil 22 distinguished on each square iron core 21 around the home.As shown in Figure 1, more convenient for the utility model is installed, and reliable in structure, the sidewall that the connection rib 14 on the above-mentioned housing 1 faces controlled switch is provided with many longitudinal register convex tendons 13 that can cooperate setting-in with the output or the input of controlled switch.Above-mentioned zero-sequence transformer summation current transformer can be respectively places on the output of controlled switch or the input by location convex tendon 13 setting-ins on the above-mentioned rectangle housing 1 and is connected in reliably on the controlled switch during use, like this, when primary current passes through above-mentioned each current transformer, during zero-sequence transformer, the two ends of each mutual inductor coil 22 will induce correspondent voltage, as electric leakage, overload, the sampled signal of short circuit phase shortage, these simulation signals are again after the microcomputer computing relatively waits a series of processing, control signal as the connection or the analysis of controlled switch, thereby realize the on-line monitoring of situation that supply line is carried out, when in case supply line breaks down as overload, after microcomputer carries out analysis and judgement to abnormal signal, and send instruction immediately, cut off supply line, guarantee Electrical Safety.Wherein, above-mentioned zero sequence electric leakage instrument transformer is in safety utilization of electric power, and its protection operation principle is similar substantially to above-mentioned current transformer, but live wire L and zero line N must be simultaneously by zero sequence electric leakage instrument transformers.The utility model is simple in structure, volume is little, easy for installation, and stable and reliable for performance when using, can be widely used on the various safe electric control equipment, especially be applied on the various safety switching apparatus with functions such as electric leakage, overload, short circuit, phase shortages.
Claims (6)
1, the rectangle instrument transformer used of a kind of safety switching apparatus, comprise housing (1) and be installed on the interior electric current mutual inductance parts (2) of this housing (1), it is characterized in that described housing (1) be one be installed on removably safety switch controlled switch input or output end and its contain at least one and enclose the rectangular cavity body of the through hole (12) that Gong the lead put places by annular vallecular cavity (11), described electric current mutual inductance parts (2) are installed in the described annular vallecular cavity (11).
2, the rectangle instrument transformer used of safety switching apparatus according to claim 1, it is characterized in that above-mentioned annular vallecular cavity (11) for ring be arranged at around above-mentioned housing (1) inner chamber, and the lead on the output of controlled switch or each electrode on the input can be enclosed the vallecular cavity that places its through hole that surrounds (12), above-mentioned electric current mutual inductance parts (2) are served as reasons and can be flush-mounted in square iron core (21) in the vallecular cavity around above-mentioned housing (1) inner chamber and the zero sequence formed of the coil (22) on this square iron core (21) instrument transformer that leaks electricity around the home.
3, the rectangle instrument transformer that safety switching apparatus according to claim 1 is used is characterized in that above-mentioned annular vallecular cavity (11) ring of serving as reasons is arranged at around above-mentioned housing (1) inner chamber, and the output of controlled switch or the lead on each electrode of input can be enclosed that the vallecular cavity and at least one that places its through hole that surrounds (12) vertically is arranged at this through hole (12) and this through hole (12) is separated into a plurality of ends that input or output for controlled switch goes up the enclosing of rib (14) be combined into that be connected in the trough of belt chamber of the small through hole (12) that the leads of each electrode place respectively and place each small through hole (12) vallecular cavity on every side.
4, the rectangle instrument transformer of using according to claim 1 or 3 described safety switching apparatus is characterized in that above-mentioned electric current mutual inductance parts (2) are served as reasons can be flush-mounted in above-mentioned housing (1) respectively and go up at least one square iron core (21) and the current transformer formed of the coil (22) on each square iron core (21) around the home respectively in each small through hole (12) vallecular cavity on every side.
5, the rectangle instrument transformer used of safety switching apparatus according to claim 4, it is characterized in that the connection rib that above-mentioned housing (1) go up to be provided with has three, above-mentioned current transformer parts (2) be to be made up of three square iron cores (21) and the coil (22) distinguished on each square iron core (21) around the home.
6, the rectangle instrument transformer used of safety switching apparatus according to claim 4 is characterized in that sidewall that connection rib (14) on the above-mentioned housing (1) faces controlled switch is provided with many longitudinal register convex tendons (13) that can cooperate setting-in with the output or the input of controlled switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057015 CN2786757Y (en) | 2005-04-14 | 2005-04-14 | Rectangular mutual inductor for safe switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057015 CN2786757Y (en) | 2005-04-14 | 2005-04-14 | Rectangular mutual inductor for safe switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786757Y true CN2786757Y (en) | 2006-06-07 |
Family
ID=36775322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057015 Expired - Fee Related CN2786757Y (en) | 2005-04-14 | 2005-04-14 | Rectangular mutual inductor for safe switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786757Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346007A (en) * | 2013-07-26 | 2013-10-09 | 常州博瑞电力自动化设备有限公司 | Electronic current transformer of isolation circuit breaker |
| CN103578724A (en) * | 2012-07-24 | 2014-02-12 | 江苏创能电器有限公司 | Combined mutual inductor |
-
2005
- 2005-04-14 CN CN 200520057015 patent/CN2786757Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578724A (en) * | 2012-07-24 | 2014-02-12 | 江苏创能电器有限公司 | Combined mutual inductor |
| CN103346007A (en) * | 2013-07-26 | 2013-10-09 | 常州博瑞电力自动化设备有限公司 | Electronic current transformer of isolation circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060607 Termination date: 20120414 |