CN214254309U - N-pole interruptible residual current operated circuit breaker with over-current protection - Google Patents
N-pole interruptible residual current operated circuit breaker with over-current protection Download PDFInfo
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- CN214254309U CN214254309U CN202120276259.4U CN202120276259U CN214254309U CN 214254309 U CN214254309 U CN 214254309U CN 202120276259 U CN202120276259 U CN 202120276259U CN 214254309 U CN214254309 U CN 214254309U
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- utmost point
- contact
- circuit breaker
- residual current
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Abstract
The utility model discloses a but N utmost point breaking residual current operated circuit breaker of taking overcurrent protection belongs to low-voltage apparatus technical field, and it is including the release mechanism that is used for holding the casing of dress accessory, the disconnected handle of control circuit breaker and is connected with the handle, the casing in be equipped with the N utmost point contact seat that links to each other with release mechanism, install the N utmost point moving contact on this N utmost point contact seat, still be equipped with in the casing and be used for realizing the N utmost point stationary contact pole of breaking apart and switch-on with the contact of N utmost point moving contact, wherein the N utmost point moving contact is adorned on the N utmost point contact seat to be connected to the N utmost point wiring board through second hank braided wire. The N utmost point stationary contact pole is connected to N utmost point current conducting plate and N utmost point flexible conductor through first hank braided wire to make residual current operated circuit breaker N utmost point have the function of keeping apart and disconnection protection, when N utmost point and L utmost point when the transposition, avoided the switch to be in under the condition of disconnection, N utmost point load end exists voltage and takes place the danger of electrocuteeing.
Description
Technical Field
The utility model belongs to the technical field of low-voltage apparatus, specifically speaking relates to a but N utmost point breaking takes overcurrent protection's residual current operated circuit breaker.
Background
Residual current operated circuit breaker is as important switching apparatus among the low-voltage apparatus, and it is widely used for in the electric wire way, and residual current operated circuit breaker has overload, short circuit, three kinds of protect function of electric leakage, no matter which among the three kinds of circumstances appears, residual current operated circuit breaker all can automatic tripping operation cut off power supply to guarantee equipment and personnel's safety.
The residual current operated circuit breaker is generally divided into an L pole and an N pole, and the residual current operated circuit breaker in the prior art generally adopts L pole breaking (the L pole includes a moving contact and a fixed contact), but the existing residual current operated circuit breaker still has the following defects in use.
Because the residual current operated circuit breaker adopts L pole breaking, the inside of the N pole is connected through a lead, a moving contact and a static contact rod are not arranged, and the N pole has no functions of isolation and disconnection protection. When the load is used, when the N pole and the L pole are reversely connected, the switch is in an off state, the N pole of the load end still has voltage, and the danger of electric shock exists. Therefore, it is necessary to provide a residual current operated circuit breaker with N-pole breaking and overcurrent protection.
Disclosure of Invention
To the disconnected problem of current residual current operated circuit breaker N utmost point inability, the utility model provides a but N utmost point breaking tape current protection's residual current operated circuit breaker is equipped with N utmost point moving contact and N utmost point static contact pole in this casing, and wherein the N utmost point moving contact is adorned on N utmost point contact seat to be connected to the N utmost point wiring board through the second hank braid line. The N utmost point stationary contact pole is connected to N utmost point current conducting plate and N utmost point flexible conductor through first hank braided wire to make residual current operated circuit breaker N utmost point have the function of keeping apart and disconnection protection, when N utmost point and L utmost point when the transposition, avoided the switch to be in under the condition of disconnection, the N utmost point has voltage and takes place the danger of electrocuteeing.
In order to solve the above problems, the utility model adopts the following technical proposal.
A residual current operated circuit breaker with N pole capable of breaking and overcurrent protection comprises a shell for containing accessories, a handle for controlling the breaking of the circuit breaker and a tripping mechanism connected with the handle,
the shell in be equipped with the N utmost point contact seat that links to each other with tripping device, install the N utmost point moving contact on this N utmost point contact seat, still be equipped with in the shell and be used for realizing breaking apart with the N utmost point moving contact and the N utmost point stationary contact pole of switch-on.
Preferably, the two ends of the shell further comprise wiring terminals, and an N-pole wiring board is arranged in the wiring terminal at one end.
Preferably, the N-pole wiring board is provided with two end faces, the whole N-pole wiring board is of a stepped structure, the second end face is arranged in the wiring terminal to form a conducting end, the tail part of the first end face is provided with a return bending part to form an installation end for clamping the N-pole wiring board on the shell, the first end face is provided with a second twisted wire, and the other end of the second twisted wire is connected with the N-pole moving contact.
Preferably, a circuit board for amplifying the control current is further arranged in the shell.
Preferably, the N utmost point stationary contact pole on be equipped with the joint portion that is used for spacing joint, joint portion and the contact jaw of N utmost point moving contact are vertical structure, N utmost point stationary contact pole one end is connected with first hank yarn, through first hank yarn with the N utmost point stationary contact pole be connected to the N utmost point current conducting plate on, and this N utmost point current conducting plate one end is connected with the extremely flexible conductor of N.
Preferably, the handle is provided with a tooth-shaped part matched with the tripping mechanism, the back of the handle and the back of the tripping mechanism are also connected with a U-shaped connecting rod, and the tripping mechanism comprises a lever, a lock catch and a jump buckle which are arranged on the lever, and a shaft and a spring which are arranged on the lever and are used for assembling the N-pole contact seat.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an add N utmost point moving contact and rather than the N utmost point stationary contact pole of matched with in the casing, changed traditional residual current operated circuit breaker inside N utmost point and only linked to each other through a wire, do not set up the drawback of N utmost point moving contact and N utmost point stationary contact pole, realize the advantage that the N utmost point also can break-make;
(2) the utility model discloses a N utmost point wiring board, including N utmost point wiring board is equipped with two terminal surfaces, wholly is the echelonment structure, wherein first terminal surface is arranged in the binding post and is formed the conduction end, the second terminal surface afterbody is equipped with the bending part and forms the installation end that supplies N utmost point wiring board to clamp on the casing, and is equipped with second hank braid on the second terminal surface, this second hank braid other end links to each other with N utmost point moving contact, through the structure of this N utmost point moving contact, has further realized the function that newly-increased N utmost point moving contact realized the break-make;
(3) the utility model also has a circuit board for amplifying the control current in the shell, which rectifies the residual current operated circuit breaker, further improves the isolation and protection functions of the residual current operated circuit breaker;
(4) the utility model provides an N utmost point stationary contact pole is equipped with the joint portion that is used for spacing joint, and the joint portion is vertical structure with the contact jaw of N utmost point moving contact, and N utmost point stationary contact pole one end is connected with first hank weaving line, connects N utmost point stationary contact pole to N utmost point current conducting plate through first hank weaving line, and this N utmost point current conducting plate one end is connected with N utmost point flexible conductor, through the structure of this N utmost point stationary contact pole, has further realized that newly-increased N utmost point stationary contact pole realizes the function of break-make;
(5) the utility model provides a be equipped with dentate part and tripping device cooperation on the handle, the handle still be connected with U type connecting rod with the tripping device back, tripping device include the lever, adorn the hasp on the lever and jump the knot and adorn and supply axle and the spring that the anodal contact seat of N joined in marriage the dress on the lever to realize being connected between this utmost point N moving contact and tripping device and the handle, make it reach through the break-make function between handle control utmost point N moving contact and the utmost point N stationary contact pole.
Drawings
Fig. 1 is a schematic structural diagram of an N-pole interruptible residual current operated circuit breaker with overcurrent protection.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
1. a handle; 1.1, a toothed part;
2. a circuit board;
3. a first twisted wire;
4. an N-pole conductive plate; 4.1, N pole flexible lead; 4.2, an N-pole wiring board; 4.21, a first end face; 4.22, a second end face; 4.3, an N-pole static contact rod; 4.4, a moving contact of an N pole; 4.5, an N-pole contact seat;
5. a second twisted wire;
6. a housing.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the prior art, an L-pole breaking is generally adopted in a residual current operated circuit breaker, that is, an L-pole moving contact is connected to a tripping mechanism and a handle 1, and an L-pole static contact is switched on and off to realize automatic tripping and cut off a power supply, so that the safety of equipment and personnel is ensured.
As shown in fig. 1, which is a schematic structural diagram of an N-pole interruptible residual current operated circuit breaker with current protection according to a preferred embodiment of the present invention, the present embodiment includes a housing 6 for housing an accessory, a handle 1 for controlling the circuit breaker to be interrupted, and a tripping mechanism connected to the handle 1, an N-pole contact base 4.5 connected to the tripping mechanism is disposed in the housing 6, an N-pole moving contact 4.4 is mounted on the N-pole contact base 4.5, an N-pole stationary contact rod 4.3 for contacting with the N-pole moving contact 4.4 to realize interruption and connection is further disposed in the housing 6, and after the N-pole moving contact 4.4 is connected to the N-pole stationary contact rod 4.3, an N-pole on-off function is realized;
in this embodiment, the two ends of the housing 6 further include a connection terminal, wherein an N-pole connection board 4.2 is arranged in the connection terminal at one end, and in this embodiment, the N-pole connection board 4.2 is attached to and arranged in the connection terminal to serve as a conducting end of the N-pole moving contact 4.4;
in this embodiment, the N-pole wiring board 4.2 is provided with two end faces, and the whole structure is a stepped structure, wherein the second end face 4.22 is arranged in the wiring terminal to form a conducting end, the tail of the first end face 4.21 is provided with a bent back portion to form an installation end for the N-pole wiring board 4.2 to be clamped on the shell 6, the first end face 4.21 is provided with a second twisted wire 5, the other end of the second twisted wire 5 is connected with the N-pole moving contact 4.4, in this embodiment, the second twisted wire 5 is respectively welded with the N-pole wiring board 4.2 and the N-pole moving contact 4.4, and the whole N-pole moving contact 4.4 is partially conducted with a screw on the wiring terminal;
in this embodiment, the housing 6 is further provided with a circuit board 2 for amplifying the control current, and the residual current operated circuit breaker is rectified, so that the isolation and protection functions of the residual current operated circuit breaker are further improved;
in this embodiment, a clamping portion for limiting clamping is arranged on the N-pole static contact rod 4.3, a contact end of the clamping portion and the N-pole moving contact 4.4 is of a vertical structure, one end of the N-pole static contact rod 4.3 is connected with a first twisted wire 3, the N-pole static contact rod 4.3 is connected to the N-pole conducting plate 4 through the first twisted wire 3, one end of the N-pole conducting plate 4 is connected with an N-pole flexible lead 4.1, the first twisted wire 3 is respectively welded with the N-pole static contact rod 4.3 and the N-pole conducting plate 4 in this embodiment, the N-pole flexible lead 4.1 is welded at one end of the N-pole conducting plate 4, and the whole N-pole static contact rod 4.3 is further conducted;
in this embodiment, the handle 1 is provided with a toothed part 1.1 matched with the tripping mechanism, the backs of the handle 1 and the tripping mechanism are also connected with a U-shaped connecting rod (not shown in the figure), the tripping mechanism comprises a lever, a lock catch and a jump buckle arranged on the lever, and a shaft and a spring which are arranged on the lever and are used for assembling an N-pole contact seat, the synchronization is realized through the matching of the latch on the handle and the tripping mechanism, meanwhile, the N-pole contact seat is arranged on the tripping mechanism, and an N-pole moving contact is clamped in the N-pole contact seat, so that the handle can be controlled to drive the N-pole moving contact to realize the on-off function between the N-pole moving contact and the N-pole static contact rod.
The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.
Claims (6)
1. A residual current operated circuit breaker with N pole capable of breaking and overcurrent protection comprises a shell (6) for containing accessories, a handle (1) for controlling the breaking of the circuit breaker and a tripping mechanism connected with the handle (1),
the method is characterized in that:
the novel tripping device is characterized in that an N-pole contact seat (4.5) connected with the tripping mechanism is arranged in the shell (6), an N-pole moving contact (4.4) is installed on the N-pole contact seat (4.5), and an N-pole static contact rod (4.3) used for being in contact with the N-pole moving contact (4.4) to realize breaking and connection is further arranged in the shell (6).
2. The N-pole interruptible residual current operated circuit breaker with overcurrent protection according to claim 1, wherein: the two ends of the shell (6) further comprise wiring terminals, and an N-pole wiring board (4.2) is arranged in one wiring terminal.
3. The N-pole interruptible residual current operated circuit breaker with overcurrent protection according to claim 2, wherein: the N pole wiring board (4.2) is provided with two end faces, the whole structure is a step-shaped structure, the second end face (4.22) is arranged in the wiring terminal to form a conducting end, the tail part of the first end face (4.21) is provided with a bent back part to form a mounting end for the N pole wiring board (4.2) to be clamped on the shell (6), the first end face (4.21) is provided with a second twisted wire (5), and the other end of the second twisted wire (5) is connected with the N pole moving contact (4.4).
4. The N-pole interruptible residual current operated circuit breaker with overcurrent protection according to claim 1, wherein: the shell (6) is also internally provided with a circuit board (2) for amplifying and controlling current.
5. The N-pole interruptible residual current operated circuit breaker with overcurrent protection according to claim 1, wherein: the N utmost point stationary contact pole (4.3) on be equipped with the joint portion that is used for spacing joint, joint portion and the contact jaw of N utmost point moving contact (4.4) are vertical structure, N utmost point stationary contact pole (4.3) one end is connected with first hank braid (3), through first hank braid (3) with N utmost point stationary contact pole (4.3) be connected to N utmost point current conducting plate (4) on, and this N utmost point current conducting plate (4) one end is connected with N utmost point flexible conductor (4.1).
6. The N-pole interruptible residual current operated circuit breaker with overcurrent protection according to claim 1, wherein: the handle (1) is provided with a tooth-shaped component matched with a tripping mechanism (1.1), and the tripping mechanism comprises a lever, a lock catch and a jump buckle which are arranged on the lever, and a shaft and a spring which are arranged on the lever and are used for assembling an N-pole contact seat (4.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276259.4U CN214254309U (en) | 2021-01-31 | 2021-01-31 | N-pole interruptible residual current operated circuit breaker with over-current protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276259.4U CN214254309U (en) | 2021-01-31 | 2021-01-31 | N-pole interruptible residual current operated circuit breaker with over-current protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214254309U true CN214254309U (en) | 2021-09-21 |
Family
ID=77795488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120276259.4U Active CN214254309U (en) | 2021-01-31 | 2021-01-31 | N-pole interruptible residual current operated circuit breaker with over-current protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214254309U (en) |
-
2021
- 2021-01-31 CN CN202120276259.4U patent/CN214254309U/en active Active
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