CN204189729U - Residual current circuit breaker - Google Patents
Residual current circuit breaker Download PDFInfo
- Publication number
- CN204189729U CN204189729U CN201420515324.4U CN201420515324U CN204189729U CN 204189729 U CN204189729 U CN 204189729U CN 201420515324 U CN201420515324 U CN 201420515324U CN 204189729 U CN204189729 U CN 204189729U
- Authority
- CN
- China
- Prior art keywords
- terminal
- zero sequence
- sequence converter
- housing
- current circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
Landscapes
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model obtains a kind of residual current circuit breaker, it is when carrying out detection of electrical leakage with being connected of the terminal of zero sequence converter and detection of electrical leakage unit, the distortion of the terminal of zero sequence converter can be allowed, and the short circuit between the terminal that can suppress the zero sequence converter caused by the attachment of cigarette ash during open circuit.In the housing (4) of the detection of electrical leakage unit (3) of residual current circuit breaker (101), acceptance division (4b) is set, this acceptance division (4b) is formed as the importing shape that the terminal (2a) to zero sequence converter (1) guides, in the portion of terminal (2) of zero sequence converter (1), arrange maintaining part (2b), the importing shape that this maintaining part (2b) is formed as being formed with the acceptance division of housing (4) (4b) is coincide.
Description
Technical field
The utility model relates to a kind of residual current circuit breaker, it leaks electricity in alternating current circuit, short circuit time, this circuit is disconnected, particularly relates to the terminal of the zero sequence converter of detection of electrical leakage and the connecting structure of detection of electrical leakage unit.
Background technology
The terminal of what existing residual current circuit breaker adopted the is zero sequence converter of detection of electrical leakage from the housing face of zero sequence converter with the structure of shaft-like protrusion, in addition, the terminal hole of the terminal of zero sequence converter directly to the connection of printed panel is inserted, and with contain the printed panel housing of detection of electrical leakage with printed panel and be connected (for example, referring to patent documentation 1).
Patent documentation 1: Japanese Unexamined Patent Publication 2000-149757 publication (Fig. 1)
In existing residual current circuit breaker, the terminal of the shaft-like zero sequence converter protruded from the housing face of zero sequence converter with naked state is directly connected with detection of electrical leakage unit, therefore, if the terminal that there is zero sequence converter there occurs distortion, then the problem that the terminal hole of the terminal of zero sequence converter and the connection of detection of electrical leakage unit staggers and cannot combine.In addition, if reduce the interval of the terminal of zero sequence converter in order to miniaturization, the attachment of cigarette ash then owing to producing when residual current circuit breaker disconnects, and become short-circuit condition between the terminal of zero sequence converter, there is the problem of the detection of electrical leakage after cannot normally disconnecting.
Utility model content
The utility model proposes to solve above-mentioned problem, it obtains a kind of residual current circuit breaker, this residual current circuit breaker is when carrying out detection of electrical leakage with being connected of the terminal of zero sequence converter and detection of electrical leakage unit, the distortion of the terminal of zero sequence converter can be allowed, and the short circuit between the terminal that can suppress the zero sequence converter caused by the attachment of cigarette ash during circuit breaker.
Residual current circuit breaker involved by the utility model has: zero sequence converter, and it detects the leakage current of alternating current circuit; And detection of electrical leakage unit, it is connected with this zero sequence converter, exceed this situation of predetermined grade to the leakage current of alternating current circuit to detect, in this residual current circuit breaker, acceptance division is provided with in the housing of detection of electrical leakage unit, this acceptance division is formed as the importing shape guided the terminal of zero sequence converter, in the portion of terminal of zero sequence converter, be provided with maintaining part, and the importing shape that this maintaining part is formed as being formed with the acceptance division of housing is coincide.
The effect of utility model
The utility model is owing to having importing shape in the terminal of the zero sequence converter in detection of electrical leakage and the connecting structure of detection of electrical leakage unit, therefore assembling easily, and utilize and the structure importing combination of shapes, even if the terminal pitch reducing zero sequence converter from, also can guarantee the precision of the sensitivity electric current of the residual current circuit breaker after disconnecting.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the structure of the residual current circuit breaker represented in execution mode 1 of the present utility model.
Fig. 2 is the enlarged front view of the zero sequence converter represented in the residual current circuit breaker shown in Fig. 1.
Fig. 3 is the amplification profile of the detection of electrical leakage unit represented in the residual current circuit breaker shown in Fig. 1.
The amplification profile of structure when Fig. 4 is the combination representing zero sequence converter in the residual current circuit breaker shown in Fig. 1 and detection of electrical leakage unit.
Fig. 5 is the amplification oblique drawing of the zero sequence converter of the residual current circuit breaker represented in execution mode 2 of the present utility model and the structure of detection of electrical leakage unit.
Fig. 6 is the amplification oblique drawing in the assembling process of the zero sequence converter of the residual current circuit breaker represented in execution mode 3 of the present utility model.
Fig. 7 is the amplification profile of the important part representing the zero sequence converter shown in Fig. 6.
Fig. 8 is the amplification oblique drawing of the assembling of the zero sequence converter of the residual current circuit breaker represented in execution mode 3 of the present utility model when completing.
The explanation of label
1 zero sequence converter, 2 portion of terminal, 2a terminal, 2b maintaining part, 2c fixing hole, 2d linking part, 2e portion of terminal housing, 3 detection of electrical leakage unit, 4 housings, 4a connecting portion, 4b acceptance division, 4c through hole, 5 electronic circuit boards, 5a solder connects, 6 outline housings, 6a is protruding, 21 pedestals, 22 cover bodies, 23a ~ 23c main circuit conductor, 101 residual current circuit breaker.
Embodiment
Execution mode 1.
Fig. 1 is the exploded perspective view of the structure represented for implementing the residual current circuit breaker in of the present utility model, execution mode 1.Fig. 2 is the enlarged front view of the zero sequence converter represented in the execution mode 1 shown in Fig. 1, Fig. 3 is the amplification profile of the detection of electrical leakage unit represented in the execution mode 1 shown in Fig. 1, the amplification profile of structure when Fig. 4 is the combination representing zero sequence converter and detection of electrical leakage unit.
In FIG, shadow part is the section part in order to clearly represent structure.Fig. 2 is the figure of the structure of the portion of terminal representing zero sequence converter.Fig. 3 is the figure of the structure of the connecting portion representing detection of electrical leakage unit.Fig. 4 is the connecting portion representing the detection of electrical leakage unit shown in portion of terminal and Fig. 3 utilizing the zero sequence converter shown in Fig. 2, by the figure of the structure that the zero sequence converter in execution mode 1 of the present utility model and detection of electrical leakage unit are formed by connecting.
As shown in Figure 1, residual current circuit breaker 101 has: opening and closing contact (not shown), and it makes alternating current circuit break-make; Main circuit conductor 23a, 23b, 23c, they are connected with alternating current circuit; Zero sequence converter 1, it makes main circuit conductor 23a, 23b, 23c run through; Detection of electrical leakage unit 3, it is connected with this zero sequence converter 1, and based on zero sequence converter 1 detection signal and detect electric leakage; Breaking coil (not shown), it is according to the output signal of this detection of electrical leakage unit 3, via switch block by pretension; And tripgear (not shown), it makes opening and closing contact separation when this breaking coil pretension.In addition, residual current circuit breaker 101 has: pedestal 21, is assembled with main circuit conductor 23a, 23b, 23c, zero sequence converter 1, detection of electrical leakage unit 3, breaking coil and tripgear in this pedestal 21; And cover body 22, it covers this pedestal 21, combines the outline of rear formation residual current circuit breaker with pedestal 21.Contain electronic circuit board 5 in the inside of detection of electrical leakage unit 3, this electronic circuit board 5 forms electric-leakage detection circuit.This electronic circuit board 5, under the state be electrically connected with the portion of terminal 2 of zero sequence converter 1, is assembled in pedestal 21.
In fig. 2, the portion of terminal 2 of zero sequence converter 1 has the maintaining part 2b that profile is formed as cone shape convex form, and this maintaining part 2b is used for keeping terminal 2a.
In figure 3, detection of electrical leakage unit 3 is by electronic circuit board 5 with utilize the housing 4 of molding synthetic resin to form.In housing 4, there is in connecting portion 4a between zero sequence converter 1 through hole 4c and the acceptance division 4b being formed as importing shape and cone shape concave shape, the terminal 2a of zero sequence converter 1 can guide by this acceptance division 4b, is connected with the solder connects 5a of electronic circuit board 5 to make terminal 2a.In addition, be provided with solder connects 5a in electronic circuit board 5, this solder connects 5a is arranged on the position relative with the through hole 4c of housing 4, and is connected with the terminal 2a of the portion of terminal 2 of zero sequence converter 1 by solder.
In the diagram, zero sequence converter 1 is connected under following state with detection of electrical leakage unit 3, that is, portion of terminal 2 is chimeric is configured in the connecting portion 4a of housing 4, and the maintaining part 2b being formed as cone shape convex form of the zero sequence converter 1 and acceptance division 4b being formed as cone shape concave shape of housing 4 is fitted together to.In a state in which, the through housing 4 of the terminal 2a of zero sequence converter 1 through hole 4c and be configured in the solder connects 5a of electronic circuit board 5.The terminal 2a of zero sequence converter 1 and electronic circuit board 5, connected by solder in this solder connects 5a.
According to the present embodiment, the terminal 2a of zero sequence converter 1, while guided by the acceptance division 4b being formed as cone shape concave shape of the connecting portion 4a of housing 4, while be connected with the solder connects 5a of electronic circuit board 5, therefore, even if when terminal 2a there occurs distortion, the connection of zero sequence converter 1 and detection of electrical leakage unit 3 also easily can be carried out.
In addition, owing to being the state that the maintaining part 2b being formed as cone shape convex form of zero sequence converter 1 and the acceptance division 4b being formed as cone shape concave shape of housing 4 are fitted together to, therefore, utilize the chimeric combination of the maintaining part 2b being formed as cone shape convex form and the acceptance division 4b being formed as cone shape concave shape, the cigarette ash stoping the short circuit disconnection etc. due to residual current circuit breaker to produce enters to terminal 2a and solder connects 5a, therefore, even if reduce zero sequence converter terminal pitch from, also can guarantee the precision of the sensitivity electric current of the residual current circuit breaker after open circuit.
Execution mode 2.
Fig. 5 is the figure of the structure representing zero sequence converter in the residual current circuit breaker in execution mode 2 of the present utility model and detection of electrical leakage unit.As shown in the figure, be configured to, the protruding 6a being arranged on fixing hole 2c on portion of terminal housing 2e and arranging on the outline housing 6 of the winding portion of collecting zero sequence converter 1 of portion of terminal 2 is combined by buckle.Portion of terminal housing 2e, outline housing 6 are by molding synthetic resin.That is, utilize the elasticity being formed with the part of fixing hole 2c of portion of terminal housing 2e, fixing hole 2c is embedded and is hooked on protruding 6a, thus portion of terminal housing 2e and outline housing 6 are fixed.For other structure, due to identical with the execution mode shown in Fig. 1 ~ Fig. 4, therefore omit the description.
According to the present embodiment, the terminal 2a of zero sequence converter 1, due to while guided by the acceptance division 4b being formed as cone shape concave shape of the connecting portion 4a of housing 4, while be connected with the solder connects 5a of electronic circuit board 5, therefore, even if when terminal 2a there occurs distortion, the connection of zero sequence converter 1 and detection of electrical leakage unit 3 also easily can be carried out.
In addition, zero sequence converter 1 by portion of terminal 2 and outline housing 6 combination and form, zero sequence converter 1 and the connection of detection of electrical leakage unit 3 are the composite construction being formed in the fixing hole 2c on portion of terminal housing 2e and the protruding 6a of outline housing 6 by portion of terminal 2 and carry out being connected, therefore, the stress caused by the vibration etc. of residual current circuit breaker main body is not concentrated in the solder connects 5a between the terminal 2a of zero sequence converter and electronic circuit board 5, therefore, the connection reliability of zero sequence converter 1 and detection of electrical leakage unit 3 improves.
And then the connection of zero sequence converter 1 and detection of electrical leakage unit 3 is simplified, therefore, assembleability improves.
Execution mode 3.
Fig. 6 ~ Fig. 7 is the figure of the structure of the zero sequence converter of the residual current circuit breaker represented in execution mode 3 of the present utility model.Fig. 6 is the amplification oblique drawing represented in the assembling process of zero sequence converter, and Fig. 7 is the amplification profile of the zero sequence converter shown in Fig. 6, and Fig. 8 is amplification oblique drawing when representing that the assembling of zero sequence converter completes.
As shown in Figure 6, the portion of terminal 2 of zero sequence converter 1 is configured to, utilize the maintaining part 2b being formed as cone shape convex form keep zero sequence converter 1 there is flexibility and by under the state of the terminal 2a of the winding leads 1a of insulating wrapped, the fixing hole 2c being formed in the incision-like on portion of terminal housing 2e of portion of terminal 2 is chimeric with the protruding 6a of outline housing 6 and combine by buckle.
The portion of terminal housing 2e of portion of terminal 2 as shown in Figure 7, is connected with outline housing 6 by having flexible linking part 2d, and forms with outline housing 6.
Utilize Fig. 6, Fig. 7, the assembling sequence of portion of terminal is described.Fig. 6, Fig. 7 illustrate under the portion of terminal housing 2e of portion of terminal 2 is in horizontal state, the state inserted in the through hole 2f arranged on the maintaining part 2b of the convex form at portion of terminal housing 2e by the winding leads 1a from zero sequence converter 1.The front end 1a1 of winding leads 1a becomes the terminal 2a for being connected with the solder connects 5a of electronic circuit board 5 in follow-up middle meeting, therefore, peels off the coating layer of insulating properties in advance.
Next, under the state that winding leads 1a is inserted in through hole 2f, using linking part 2d as pivot, by portion of terminal housing 2e to the arrow A direction bending shown in Fig. 7 90 degree, make the fixing hole 2c of portion of terminal 2 chimeric with the protruding 6a of outline housing 6 by buckle.Like this, as shown in Figure 8, the front end 1a1 of winding leads 1a protrudes relative to the maintaining part 2b of convex form and becomes terminal 2a, and terminal 2a becomes the completion status of portion of terminal 2 upward.
Other structure is identical with execution mode 1, therefore, omits the description.
According to the present embodiment, the terminal 2a of zero sequence converter 1, while guided by the acceptance division 4b being formed as cone shape concave shape of the connecting portion 4a of housing 4, while be connected with the solder connects 5a of electronic circuit board 5, therefore, even if when terminal 2a there occurs distortion, be also easy to the connection carrying out zero sequence converter 1 and detection of electrical leakage unit 3.
In addition, zero sequence converter 1 by portion of terminal 2 and outline housing 6 combination and form, zero sequence converter 1 and the connection of detection of electrical leakage unit 3 are the composite construction being formed in the fixing hole 2c on portion of terminal housing 2e and the protruding 6a of outline housing 6 by portion of terminal 2 and carry out being connected, therefore, the stress caused by the vibration etc. of residual current circuit breaker main body is not concentrated in the solder connects 5a between the terminal 2a of zero sequence converter and electronic circuit board 5, therefore, the connection reliability of zero sequence converter 1 and detection of electrical leakage unit 3 improves.
And then the connection of zero sequence converter 1 and detection of electrical leakage unit 3 is simplified, therefore, assembleability improves.
In addition, because the outline housing 6 of portion of terminal housing 2e and zero sequence converter forms, therefore, it is possible to reduce the unit price of parts.In addition, by the outline housing 6 of portion of terminal housing 2e and zero sequence converter 1 is integrally formed, thus when assembling when winding leads 1a is inserted in through hole 2f, the position of the through hole 2f that lead-in wire inserts is fixed, therefore, particularly when insertion the 2nd and winding leads afterwards thereof relative to outline housing 6, even if do not utilize fixture etc. to be fixed by portion of terminal housing 2e, also the assembled state of winding leads 1a can be maintained, therefore, it is possible to improve assembling operation.
The utility model is not limited to above-mentioned execution mode, in the scope of its utility model, each execution mode freely can be combined, or carry out suitable distortion, omission to each execution mode.
Claims (4)
1. a residual current circuit breaker (101), it has:
Zero sequence converter (1), it detects the leakage current of alternating current circuit; And
Detection of electrical leakage unit (3), it is connected with described zero sequence converter (1), and electronic circuit board (5) is housed in housing (4), this electronic circuit board (5) produces output when the leakage current of described alternating current circuit exceedes predetermined grade
The feature of this residual current circuit breaker (101) is,
Acceptance division (4b) is provided with in described housing (4), this acceptance division (4b) is formed as to guide the terminal of described zero sequence converter (1) (2a) and making the importing shape that this terminal is connected with the connecting portion (4a) of described electronic circuit board (5), maintaining part (2b) is provided with in the portion of terminal (2) of described zero sequence converter (1), this maintaining part (2b) is formed as the shape chimeric with the acceptance division of described housing (4) (4b), and keep the terminal (2a) of described zero sequence converter (1).
2. residual current circuit breaker according to claim 1, is characterized in that,
The importing shape of the acceptance division (4b) of housing (4) is cone shape concave shape, the shape of the maintaining part (2b) of the terminal (2a) of zero sequence converter (1) is the cone shape convex form corresponding with described cone shape concave shape, and the maintaining part (2b) of the acceptance division (4b) of described housing (4) and the terminal (2a) of the described zero sequence converter of maintenance (1) is combined by cone shape.
3. residual current circuit breaker according to claim 1 and 2, is characterized in that,
The outline housing (6) of the portion of terminal housing (2e) of the portion of terminal (2) of zero sequence converter (1) and the winding portion of accommodating described zero sequence converter (1) is combined by fastener.
4. residual current circuit breaker according to claim 1 and 2, is characterized in that,
The portion of terminal housing (2e) of the portion of terminal (2) of zero sequence converter (1) and accommodate the outline housing (6) of winding portion of described zero sequence converter (1), form via having flexible linking part (2d), portion of terminal housing (2e) and the described outline housing (6) of described portion of terminal (2) are combined by fastener.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-185857 | 2013-09-09 | ||
| JP2013185857A JP6139345B2 (en) | 2013-09-09 | 2013-09-09 | Earth leakage breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189729U true CN204189729U (en) | 2015-03-04 |
Family
ID=52621705
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515324.4U Withdrawn - After Issue CN204189729U (en) | 2013-09-09 | 2014-09-09 | Residual current circuit breaker |
| CN201410455498.0A Active CN104425190B (en) | 2013-09-09 | 2014-09-09 | Electric leakage circuit breaker |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410455498.0A Active CN104425190B (en) | 2013-09-09 | 2014-09-09 | Electric leakage circuit breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6139345B2 (en) |
| KR (1) | KR101601455B1 (en) |
| CN (2) | CN204189729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425190A (en) * | 2013-09-09 | 2015-03-18 | 三菱电机株式会社 | Electric leakage circuit breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951573B (en) * | 2021-01-29 | 2022-08-19 | 杭州萧山玉峰电力科技有限公司 | Zero sequence mutual inductor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980059113U (en) * | 1997-02-28 | 1998-10-26 | 배순훈 | Flyback Transformer Terminal Pin Guide |
| JP3924963B2 (en) * | 1998-11-04 | 2007-06-06 | 富士電機機器制御株式会社 | Earth leakage breaker |
| JP3985409B2 (en) * | 2000-02-01 | 2007-10-03 | 富士電機システムズ株式会社 | Current transformer for gas-insulated electrical equipment |
| JP4433849B2 (en) * | 2004-03-26 | 2010-03-17 | 富士電機システムズ株式会社 | Electric blower fixing structure |
| JP6139345B2 (en) * | 2013-09-09 | 2017-05-31 | 三菱電機株式会社 | Earth leakage breaker |
-
2013
- 2013-09-09 JP JP2013185857A patent/JP6139345B2/en active Active
-
2014
- 2014-07-28 KR KR1020140095795A patent/KR101601455B1/en active IP Right Grant
- 2014-09-09 CN CN201420515324.4U patent/CN204189729U/en not_active Withdrawn - After Issue
- 2014-09-09 CN CN201410455498.0A patent/CN104425190B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425190A (en) * | 2013-09-09 | 2015-03-18 | 三菱电机株式会社 | Electric leakage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104425190A (en) | 2015-03-18 |
| KR20150029529A (en) | 2015-03-18 |
| CN104425190B (en) | 2017-01-18 |
| KR101601455B1 (en) | 2016-03-08 |
| JP2015053197A (en) | 2015-03-19 |
| JP6139345B2 (en) | 2017-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170118 |
|
| AV01 | Patent right actively abandoned |