CN206877955U - A kind of new micro earth leakage circuit breaker - Google Patents
A kind of new micro earth leakage circuit breaker Download PDFInfo
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- CN206877955U CN206877955U CN201720480537.1U CN201720480537U CN206877955U CN 206877955 U CN206877955 U CN 206877955U CN 201720480537 U CN201720480537 U CN 201720480537U CN 206877955 U CN206877955 U CN 206877955U
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Abstract
A kind of new micro earth leakage circuit breaker, including L poles breaker portion and N poles electric leakage portion are the utility model is related to, the N poles electric leakage portion includes first, second terminals, locking mechanism, magnetictrip, circuit board and zero sequence current mutual inductor；The L poles breaker portion includes the three, the 4th terminals, and a L polar circuits are electrically connected to form between the three, the 4th terminals；It is serially connected with one on the L polar circuits to twist thread part, the part of twisting thread passes through the zero sequence current mutual inductor, to realize that the signal to N poles electric leakage portion transmits；This twist thread part including first twist thread section, second twist thread section and sleeve member, this first is twisted thread and section or second twisted thread through the zero sequence current mutual inductor, then this first, second twists thread Duan Jun in the sleeve member, and by the sleeve member fixation to realize that first, second section of twisting thread electrically connects.
Description
Technical field
Control and the protection technique of power supply-distribution system are the utility model is related to, more particularly to a kind of new micro earth leakage protective
Breaker.
Background technology
Miniature circuit breaker is now widely used for control and the guarantor of residential households distribution line and low power electric appliance equipment
Shield.When the failures such as current overload, short circuit occur for power and distribution supply cable or low power electric appliance, miniature circuit breaker in circuit is connected
Energy automatic shutdown circuit, so as to protect electric equipment and personal safety.
Miniature circuit breaker includes dynamic/static contact, operating mechanism and electrical apparatus release three parts；Under normal condition, operating mechanism
In lock it is sealed, moving contact is contacted with static contact, circuit be powered；When there is current overload, electric leakage, short circuit, instantaneous excessively electric
During the faults such as stream, electrical apparatus release triggering lock is opened, and moving contact is separated with static contact, so as to which circuit be disconnected, pending fault
After exclusion, then the handle pulled in operating mechanism will latch sealed, moving contact is contacted again with static contact, circuit is connected.
Most of miniature circuit breakers of in the market only have single defencive function, or only earth leakage protective or only mistake
Carry protection or only short-circuit protection etc..Simultaneously collect it is a variety of be protected in integral Multifunctional minitype circuit breaker to protect electrical equipment
Equipment and personal safety are relatively reliable.The utility model that open (bulletin) number is CN201181682Y discloses a kind of multi-functional small
Type breaker, including：The operating mechanism being fixed in casing；Casing internal impedance sensor is fixed on, the impedance transducer
In be provided with the wire that is connected with by protection circuit；The control circuit being connected with impedance transducer；What is be connected with control circuit is de-
Detain device；The impedance transducer is used to gather by the voltage or current signal of protection circuit；The control circuit is used for according to resistance
The signal detection that anti-sensor is gathered goes out overload, electric leakage, short circuit, overvoltage protection, under-voltage and open phase fault, and control is threaded off
Device makes operating mechanism thread off；Electrical apparatus release is used to make operating mechanism thread off according to the control of control circuit.
However, in above-mentioned technical proposal, current transformer and zero sequence current mutual inductor need phase line and the neutral conductor to pass through, its
Threading structure causes breaker structure complicated, largely improves the difficulty of electronic component arrangement optimization, and production and assembly
Process need to be carried out integrally, and packaging technology is complicated, it is impossible to meets actual use demand well.
Utility model content
The utility model aims to provide a kind of new micro earth leakage circuit breaker, to solve existing breaker zero-sequence current
The problem of transformer installation difficulty, poor electronic configuration structural behaviour.
Concrete scheme is as follows：A kind of new micro earth leakage circuit breaker, including L poles breaker portion and N poles electric leakage portion,
The N poles electric leakage portion includes first, second terminals, N poles locking mechanism, electrical apparatus release, circuit board and zero-sequence current
Transformer；The N poles locking mechanism is accessed between first, second terminals so that first, second terminals are locked by the N poles
Mechanism electrical connection is closed, the circuit board electrically connects with the zero sequence current mutual inductor and electrical apparatus release respectively, and the electrical apparatus release can act on
The N poles locking mechanism, connecting and disconnecting of the circuit between first, second terminals is controlled with realizing；
The L poles breaker portion includes the three, the 4th terminals and L poles locking mechanism, the L poles locking mechanism access this
3rd, so that the three, the 4th terminals are electrically connected by the L poles locking mechanism between the 4th terminals；Three, the 4th wiring
It is serially connected with one on circuit between end to twist thread part, the part of twisting thread passes through the zero sequence current mutual inductor, to realize to N poles electric leakage portion
Signal transmits；
This twist thread part including first twist thread section, second twist thread section and sleeve member, this first is twisted thread and section or second twists thread and wear
Cross the zero sequence current mutual inductor, then this first, second twists thread Duan Jun in the sleeve member, and by the sleeve member fixation with
Realize this first, second twist thread section electrical connection.
Further：The sleeve member is a becket, this first, second twist thread section in the sleeve member after, riveting should
Sleeve member realizes the sleeve member to first, second fixation for twisting thread section.
Further, first, second section of twisting thread located at one end of the becket is respectively first, second riveting end, should
First, second riveting end is respectively equipped with a notch part, and the first, second riveting end is spliced by two notch parts to adapt to this
The inner chamber of sleeve member.
Further, a temperature-sensitive escape part is also equipped with the L poles breaker portion, this first is twisted thread section and the 3rd wiring
End electrical connection, second section of twisting thread electrically connect with the temperature-sensitive escape part so that the temperature-sensitive escape part by this twist thread part and this
Three terminals electrically connect.
Further, the N poles electric leakage portion also includes the first insulation shell, first, second terminals, N poles locking mechanism,
Electrical apparatus release, circuit board and zero sequence current mutual inductor are mounted in first insulation shell；The part of twisting thread is electric through the zero sequence
Current transformer, then its both ends be each passed through the side wall of first insulation shell, to concatenate between the three, the 4th terminals
Circuit.
Further, the L poles breaker portion also includes the second insulation shell, the three, the 4th terminals and extinguisher
It is mounted in second insulation shell, is correspondingly provided with the wall of second insulation shell and first, second is twisted thread section for this
The through hole passed through.
The utility model by by the part of twisting thread through zero sequence current mutual inductor be divided into first twist thread section, second twist thread section with
And sleeve member, first complete the incomplete installation in L poles breaker portion in installation process, and by first twist thread section, second twist thread Duan An
Loaded in the electric leakage portion of N poles；N poles electric leakage portion is installed in the breaker portion of L poles, and makes first or second to twist thread through N poles
The zero sequence current mutual inductor in electric leakage portion, then realize that first twists thread section, the second fixation and electrical connection for twisting thread section by sleeve member,
The greatly simplified installation difficulty of current transformer, realizes installation exercise technology difficulty, and it is excellent to be advantageous to electronic component arrangement
Change.
Brief description of the drawings
Fig. 1 shows the utility model structure diagram；
Fig. 2 shows that Fig. 1 N poles electric leakage portion and L poles breaker portion do not remove the structural representation of a side cover plate；
Fig. 3 shows that Fig. 2 twists thread part and the explosive view of zero sequence current mutual inductor part；
Fig. 4 shows Fig. 2 front views；
Fig. 5 shows Fig. 2 rearviews.
Embodiment
To further illustrate each embodiment, the utility model is provided with accompanying drawing.These accompanying drawings are in the utility model discloses
A part for appearance, it can coordinate the associated description of specification to explain the running of embodiment original mainly to illustrate embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
With reference to shown in Fig. 1, the new micro earth leakage circuit breaker of the embodiment, including L poles breaker portion 20 and N poles
Electric leakage portion 10, the N poles electric leakage portion 10 include one first insulation shell, and the L poles breaker portion includes one second insulation shell,
First insulation shell is fixed on first insulation shell, and peace is fixed to realize L poles breaker portion 20 and N poles electric leakage portion 10
Dress.
In conjunction with Fig. 2 and Fig. 4, the both ends of first insulation shell in the N poles electric leakage portion 10 of the embodiment are provided with first
Terminals 11, the second terminals 12, be additionally provided with first insulation shell N poles locking mechanism 13, electrical apparatus release 16, circuit board 14 with
And zero sequence current mutual inductor 15：
First terminals 11 are electrically connected with a static contact, and second terminals 12 are electrically connected with a moving contact, and this is dynamic tactile
Head is installed on the N poles locking mechanism 13, and the wiring of the first terminals 11 and second is accessed to realize the N poles locking mechanism 13
Between end 12, and the 13 different latched positions of N poles locking mechanism can make electricity between first terminals 11, the second terminals 12
Connection disconnects；
The circuit board 14 electrically connects with the zero sequence current mutual inductor 15 and electrical apparatus release 16 respectively, the work of the electrical apparatus release 16
Rectify and the N poles locking mechanism 13 is set, so that the N poles locking mechanism 13 can be acted on；N poles electric leakage portion 10 is mutual by zero-sequence current
Sensor 15 detects circuit Leakage Current, feeds back to circuit board 14, and then circuit board 14 controls the electric leakage coil of electrical apparatus release 16 to obtain electric
Action, promote N poles locking mechanism 13 to thread off, connecting and disconnecting of the circuit between first, second terminals is controlled with realizing.
In conjunction with shown in Fig. 2 and Fig. 5, the both ends of second insulation shell in the L poles breaker portion 20 are provided with the 3rd terminals
21st, the 4th terminals 22, a L polar circuits are electrically connected to form between the 3rd terminals 21, the 4th terminals 22.
In conjunction with shown in Fig. 2 to Fig. 5, L poles locking mechanism and temperature-sensitive escape part 23 are provided with the L poles breaker portion 20,
The temperature-sensitive escape part 23 is a thermosensitive bimetal, and the L poles locking mechanism is provided with a moving contact, and the moving contact is jumped with the temperature-sensitive
The de- free end of portion 23 electrical connection；It is serially connected with one between the terminals 21 of temperature-sensitive escape part 23 and the 3rd to twist thread part 25, this is twisted thread
Part 25 through the second insulation shell, the first insulation shell with through zero sequence current mutual inductor 15, to realize to N poles electric leakage portion 10
Signal transmits：
This twist thread part 25 including first twist thread section 251, second twist thread section 252 and sleeve member 253；In this embodiment,
First fixing end for twisting thread section 251 electrically connects with the 3rd terminals 21 in the L poles breaker portion 20, and this second is twisted thread section 252
Fixing end electrically connected with the fixing end of the temperature-sensitive escape part 23, first section 251 of twisting thread passes through the zero sequence current mutual inductor 15,
Then first, second free end for twisting thread section is located in the sleeve member 253, and is fixed by the sleeve member 253 to realize
This first, second twist thread section electrical connection；The free end of the temperature-sensitive escape part 23 by the moving contact structure of the L poles locking mechanism with
4th terminals 22 electrically connect, to form a complete L polar circuits.
To realize optimal electrical connection effect, in this embodiment, the sleeve member 253 is a becket, preferably copper ring,
Its inner chamber is cylindrical cavity；First twist thread section 251, second free end for twisting thread section 252 is respectively the first riveting end
2510 and second rivet end 2520, and the first, second riveting end is respectively equipped with a notch part to be molded the columned structure of half,
Then the first, second riveting end is in a columned splicing construction by the splicing of two notch parts, and the splicing construction adapts to
The inner chamber of the sleeve member 253, to be installed in the sleeve member 253；The riveting sleeve member 253 realizes that the sleeve member 253 is right after again
First, second fixation and electrical connection for twisting thread section free end.
For realize it is optimal electrically isolate insulation effect, first insulation shell in the N poles electric leakage portion 10, to that first should twist with the fingers
Line segment 251, the second section 252 of twisting thread are respectively equipped with a through hole, the L poles breaker portion 20 to should the first section 251, second of twisting thread twist with the fingers
Line segment 252 is respectively equipped with a through hole, to enable the first section 251 and second of twisting thread to twist thread that to sequentially pass through second respectively exhausted for section 252
The side wall of edge housing, the first insulation shell, then riveted again through zero sequence current mutual inductor 15 by the first section 251 of twisting thread.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (6)
1. a kind of new micro earth leakage circuit breaker, including L poles breaker portion and N poles electric leakage portion,
The N poles electric leakage portion includes first, second terminals, N poles locking mechanism, electrical apparatus release, circuit board and zero sequence current mutual inductance
Device；The N poles locking mechanism is accessed between first, second terminals so that first, second terminals pass through the extremely sealed machines of the N
Structure electrically connects, and the circuit board electrically connects with the zero sequence current mutual inductor and electrical apparatus release respectively, and the electrical apparatus release can act on the N poles
Locking mechanism, connecting and disconnecting of the circuit between first, second terminals is controlled with realizing；
The L poles breaker portion includes the three, the 4th terminals and L poles locking mechanism, and the L poles locking mechanism accesses the 3rd,
So that the three, the 4th terminals are electrically connected by the L poles locking mechanism between four terminals；Three, the 4th terminals it
Between circuit on be serially connected with one and twist thread part, the part of twisting thread passes through the zero sequence current mutual inductor, to realize the signal to N poles electric leakage portion
Transmission；
It is characterized in that：This twist thread part including first twist thread section, second twist thread section and sleeve member, this first is twisted thread section or second
Twist thread through the zero sequence current mutual inductor, then this first, second twists thread Duan Jun in the sleeve member, and passes through the sleeve member
It is fixed to realize that this first, second is twisted thread section electrical connection.
2. new micro earth leakage circuit breaker according to claim 1, it is characterised in that：The sleeve member is a metal
Ring, this first, second twist thread section in the sleeve member after, the riveting sleeve member realizes that the sleeve member first, second is twisted with the fingers to this
The fixation of line segment.
3. new micro earth leakage circuit breaker according to claim 2, it is characterised in that：This first, second is twisted thread section
One end located at the becket is respectively first, second riveting end, and the first, second riveting end is respectively equipped with a notch part, should
Spliced by two notch parts to adapt to the inner chamber of the sleeve member at first, second riveting end.
4. new micro earth leakage circuit breaker according to claim 1, it is characterised in that：In the L poles breaker portion also
One temperature-sensitive escape part is installed, first section of twisting thread electrically connects with the 3rd terminals, and this second is twisted thread section and the temperature-sensitive escape
Portion electrically connects, so that the temperature-sensitive escape part is electrically connected by the part of twisting thread with the 3rd terminals.
5. new micro earth leakage circuit breaker according to claim 1, it is characterised in that：The N poles electric leakage portion also includes
First insulation shell, first, second terminals, N poles locking mechanism, electrical apparatus release, circuit board and zero sequence current mutual inductor are equal
It is installed in first insulation shell；The part of twisting thread passes through the zero sequence current mutual inductor, then its both ends be each passed through this first
The side wall of insulation shell, to concatenate the circuit between the three, the 4th terminals.
6. new micro earth leakage circuit breaker according to claim 1, it is characterised in that：The L poles breaker portion is also wrapped
The second insulation shell is included, the three, the 4th terminals and extinguisher are mounted in second insulation shell, second insulation
It is correspondingly provided with the wall of housing and first, second is twisted thread the through hole that section passes through for this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480537.1U CN206877955U (en) | 2017-05-03 | 2017-05-03 | A kind of new micro earth leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480537.1U CN206877955U (en) | 2017-05-03 | 2017-05-03 | A kind of new micro earth leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206877955U true CN206877955U (en) | 2018-01-12 |
Family
ID=61338593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720480537.1U Active CN206877955U (en) | 2017-05-03 | 2017-05-03 | A kind of new micro earth leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206877955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223727A (en) * | 2018-11-27 | 2020-06-02 | 俊郎电气有限公司 | C65 small-sized leakage ground fault protection circuit breaker |
-
2017
- 2017-05-03 CN CN201720480537.1U patent/CN206877955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223727A (en) * | 2018-11-27 | 2020-06-02 | 俊郎电气有限公司 | C65 small-sized leakage ground fault protection circuit breaker |
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