CN204189600U - A kind of zero-sequence transformer on electric heater - Google Patents
A kind of zero-sequence transformer on electric heater Download PDFInfo
- Publication number
- CN204189600U CN204189600U CN201420706218.4U CN201420706218U CN204189600U CN 204189600 U CN204189600 U CN 204189600U CN 201420706218 U CN201420706218 U CN 201420706218U CN 204189600 U CN204189600 U CN 204189600U
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- card base
- winding
- connection group
- shell
- group line
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Abstract
The utility model relates to a kind of zero-sequence transformer on electric heater, and this zero-sequence transformer is made up of shell, copper wire winding, insulation booth, silicon steel sheet winding, left card base, left fixed block, left pin groups, insulating resin, left connection group line, right connection group line, right card base, right pin groups, right fixed block; Described shell is hollow semi-closed structure arcuately, which is provided with left card base and right card base, and left card base and right card base and shell are integrated; The rounded structure of described insulation booth, is made up of upper cover and lower cover, and both combine and form cylinder type hollow structure; The rounded structure of described silicon steel sheet winding is positioned at insulation booth, jointly forms a closed-loop with insulation booth; What copper wire winding was orderly be wrapped in closed-loop forms winding, and winding is respectively equipped with again left connection group line and right connection group line.The utility model zero-sequence transformer not only structure is simple, with low cost, and main is that product is easy for installation, reliable.
Description
Technical field
The utility model belongs to dynamo-electric manufacture field, relates to a kind of zero-sequence transformer on electric heater.
Background technology
Zero sequence current mutual inductor when electric power system produces zero sequence earth current with protective relaying device or signal with the use of, make device element action, realize protection or monitor.Zero-sequence transformer of a great variety, model is also not quite similar, and can need the zero-sequence transformer selecting different model according to different.Due to the difference of manufacturing enterprise, the structure of zero-sequence transformer is also had any different, and therefore the quality of product is also different.Current electric heater has become the indispensable household electrical appliance of people's life; its security requirement is very high; because directly affect personal safety, therefore the earth leakage protective reliability requirement of electric heater is just very high, and zero-sequence transformer is exactly a critical component in earth leakage protective device.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the zero-sequence transformer on electric heater of reliable in action.
A zero-sequence transformer on electric heater, this zero-sequence transformer is made up of shell, copper wire winding, insulation booth, silicon steel sheet winding, left card base, left fixed block, left pin groups, insulating resin, left connection group line, right connection group line, right card base, right pin groups, right fixed block; Described shell is hollow semi-closed structure arcuately, which is provided with left card base and right card base, and left card base and right card base and shell are integrated; The rounded structure of described insulation booth, is made up of upper cover and lower cover, and both combine and form cylinder type hollow structure; The rounded structure of described silicon steel sheet winding is positioned at insulation booth, jointly forms a closed-loop with insulation booth; What copper wire winding was orderly be wrapped in closed-loop forms winding, and winding is respectively equipped with again left connection group line and right connection group line; Described left fixed block is fixed on the relevant position of shell by left card base; Left pin groups is made up of 2 contact pins, is separately fixed at left fixed block relevant position, and one end of 2 contact pins is connected with the left connection group line on winding respectively, and the other end is free end; Described right fixed block is fixed on the relevant position of shell by right card base; Right pin groups is made up of 2 contact pins, is separately fixed on right fixed block, and one end of 2 contact pins is connected with the right connection group line on winding respectively, and the other end is free end; Described insulating resin is cast in non-blind end and the gap location of shell.
The utility model zero-sequence transformer not only structure is simple, with low cost, and main is that product is easy for installation, reliable.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model zero-sequence transformer;
Fig. 2 is the left view of the utility model zero-sequence transformer;
Fig. 3 is the structural representation of insulation booth in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, Figure 2, Figure 3 shows, a zero-sequence transformer on electric heater, it forms primarily of shell 1, copper wire winding 2, insulation booth 3, silicon steel sheet winding 4, left card base 5, left fixed block 6, left pin groups 7, insulating resin 8, left connection group line 9, right connection group line 10, right card base 11, right pin groups 12, right fixed block 13.Shell 1 is hollow semi-closed structure arcuately, which is provided with left card base 5 and right card base 11, and left card base 5 and right card base 11 are integrated with shell 1.The rounded structure of insulation booth 3, is made up of upper cover 14 and lower cover 15, and both combine and form cylinder type hollow structure; The rounded structure of silicon steel sheet winding 4 is positioned at insulation booth 3, jointly forms a closed-loop with insulation booth 3; What copper wire winding 2 was orderly be wrapped in closed-loop forms winding, and winding is respectively equipped with again left connection group line 9 and right connection group line 10.Left fixed block 6 is fixed on the relevant position of shell 1 by left card base 5; Left pin groups 7 is made up of 2 contact pins, is separately fixed at left fixed block 6 relevant position, and one end of 2 contact pins is connected with the left connection group line 9 on winding respectively, and the other end is free end; Right fixed block 13 is fixed on the relevant position of shell 1 by right card base 11; Right pin groups 12 is made up of 2 contact pins, is separately fixed on right fixed block 13, and one end of 2 contact pins is connected with the right connection group line 10 on winding respectively, and the other end is free end; Insulating resin 8 is cast in non-blind end and the gap location of shell 1.
The utility model mutual inductance adopts ABS engineering plastics shell, and resin-cast becomes hermetically sealed, good insulation preformance, good looking appearance, have highly sensitive, the linearity good, the feature such as reliable, easy for installation.Its performance is better than general zero sequence current mutual inductor, and the scope of application is extensive, is not only applicable to electric heater electric protection, can also be applicable to electronics and microcomputer protecting device.User can according to the operational mode of system, and the difference of neutral point effective grounding or neutral non-effective grounding selects the zero sequence current mutual inductor adapted.
Claims (1)
1. the zero-sequence transformer on electric heater, is characterized in that: this zero-sequence transformer is made up of shell (1), copper wire winding (2), insulation booth (3), silicon steel sheet winding (4), left card base (5), left fixed block (6), left pin groups (7), insulating resin (8), left connection group line (9), right connection group line (10), right card base (11), right pin groups (12), right fixed block (13); Described shell (1) arcuately hollow semi-closed structure, which is provided with left card base (5) and right card base (11), and left card base (5) and right card base (11) are integrated with shell (1); Described insulation booth (3) rounded structure, is made up of upper cover (14) and lower cover (15), and both combine and form cylinder type hollow structure; The rounded structure of described silicon steel sheet winding (4) is positioned at insulation booth (3), jointly forms a closed-loop with insulation booth (3); Orderly being wrapped in closed-loop of copper wire winding (2) forms winding, and winding is respectively equipped with again left connection group line (9) and right connection group line (10); Described left fixed block (6) is fixed on the relevant position of shell (1) by left card base (5); Left pin groups (7) is made up of 2 contact pins, is separately fixed at left fixed block (6) relevant position, and one end of 2 contact pins is connected with the left connection group line (9) on winding respectively, and the other end is free end; Described right fixed block (13) is fixed on the relevant position of shell (1) by right card base (11); Right pin groups (12) is made up of 2 contact pins, is separately fixed on right fixed block (13), and one end of 2 contact pins is connected with the right connection group line (10) on winding respectively, and the other end is free end; Described insulating resin (8) is cast in non-blind end and the gap location of shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706218.4U CN204189600U (en) | 2014-11-24 | 2014-11-24 | A kind of zero-sequence transformer on electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706218.4U CN204189600U (en) | 2014-11-24 | 2014-11-24 | A kind of zero-sequence transformer on electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189600U true CN204189600U (en) | 2015-03-04 |
Family
ID=52621578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420706218.4U Active CN204189600U (en) | 2014-11-24 | 2014-11-24 | A kind of zero-sequence transformer on electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783084A (en) * | 2016-11-07 | 2017-05-31 | 蚌埠市正园电子科技有限公司 | A kind of miniature transformer and its production technology |
-
2014
- 2014-11-24 CN CN201420706218.4U patent/CN204189600U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783084A (en) * | 2016-11-07 | 2017-05-31 | 蚌埠市正园电子科技有限公司 | A kind of miniature transformer and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |