CN209000848U - A kind of plug-in type miniature circuit breaker - Google Patents

A kind of plug-in type miniature circuit breaker Download PDF

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Publication number
CN209000848U
CN209000848U CN201821672068.4U CN201821672068U CN209000848U CN 209000848 U CN209000848 U CN 209000848U CN 201821672068 U CN201821672068 U CN 201821672068U CN 209000848 U CN209000848 U CN 209000848U
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China
Prior art keywords
breaker
plug
component
socket
shell
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Active
Application number
CN201821672068.4U
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Chinese (zh)
Inventor
李力军
包启树
包志勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Europe Electric Co Ltd
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Central Europe Electric Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Central Europe Electric Co Ltd filed Critical Central Europe Electric Co Ltd
Priority to CN201821672068.4U priority Critical patent/CN209000848U/en
Application granted granted Critical
Publication of CN209000848U publication Critical patent/CN209000848U/en
Active legal-status Critical Current
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Abstract

The utility model discloses a kind of plug-in type miniature circuit breakers, including breaker socket and breaker body, the dovetail groove that installation is adapted with breaker body is offered on breaker socket, the breaker socket is equipped with the end of incoming cables component and mounting hole being connected with outer lead;The breaker body includes shell and conducting plug, and moving contact component, static contact component, double gold protection components, leading-out terminal component, arc quenching system are provided in shell and controls the handle that moving contact component and static contact component are switched on or switched off;Wherein conducting plug stretches out outside shell, and the conducting plug is connect with static contact component conductor;The leading-out terminal component is equipped with conductive plate, wire frame and the fastening screw connecting with external conductive;The leading-out terminal component conductive plate is connected with wire frame with outgoing line side, realizes that breaker body can quickly directly plug be installed, replaced from the mounting groove of breaker socket, user security is facilitated to use.

Description

A kind of plug-in type miniature circuit breaker
Technical field
The utility model relates to field of circuit breakers, more specifically, it relates to a kind of plug-in type miniature circuit breaker.
Background technique
Existing miniature circuit breaker is all made of monolithic construction, using a complete shell by all kinds of groups of miniature circuit breaker Part is assembled in shell, is also placed in together in this complete shell into and out of line end.It is installed in the bottom of miniature circuit breaker Snap-gauge and miniature circuit breaker is mounted on standard rail by the standard rail by being mounted in ammeter box or distribution box.Into and out of Line end connect with outer lead respectively and uses the screw in compression on miniature circuit breaker terminals, realizes to source side, load-side It connects and realizes power supply and power-off with breaking operation, and thereby protect the safety of people, animal and property, equipment.
Existing miniature circuit breaker product needs to remove or need replacing other identical or not same size breaking down When miniature circuit breaker, it is necessary to then need to remove external connecting leads from the terminals of miniature circuit breaker by breaker overall pulling down And miniature circuit breaker is removed from the standard rail of installation again from being pulled out in the wiring hole of miniature circuit breaker.It is naked to be exposed on the external Connecting wire constitutes security risk.If constraint of the miniature circuit breaker being mounted in ammeter box or distribution box by power supply department When, user is then unable to self-changeable miniature circuit breaker.Do not allowing the place such as hospital, square, the communication that occur having a power failure for a long time It will cause adverse effects for maincenter, data center, safety monitoring center.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of plug-in type miniature circuit breakers.
To achieve the above object, the utility model provides following technical solution:
A kind of plug-in type miniature circuit breaker, including breaker socket and breaker body, offer on breaker socket The breaker socket dovetail groove recess portion of installation is adapted with breaker body dovetail groove protrusion, when breaker body is mounted on open circuit When in device socket dovetail groove and with breaker socket grafting, the conducting plug is connected with breaker socket end of incoming cables component, The leading-out terminal component conductive plate is connected with wire frame with outgoing line side;
The breaker socket is equipped with the end of incoming cables component and mounting hole being connected with outer lead;
The breaker body includes shell and conducting plug, be provided in shell moving contact component, static contact component, The handle that both double gold protection components, leading-out terminal component, arc quenching system and control are switched on or switched off;Wherein conducting plug stretches out Outside shell;
When the breaker body is mounted in the breaker socket dovetail groove and is inserted into the breaker socket, institute It states conducting plug to be connected with end of incoming cables component, the leading-out terminal component is connected with external outlet;
When the breaker body is mounted in the breaker socket dovetail groove, the conducting plug and the end of incoming cables When component separates, the breaker body disconnects conductor with the breaker socket and connect.
The utility model is further arranged: the breaker socket is provided with guiding dovetail groove, and the breaker body is logical Guiding dovetail groove to be crossed to be placed in breaker socket, the breaker body is slided in breaker socket by being oriented to dovetail groove, It connects and separates with breaker socket for breaker body.
The utility model is further arranged: the breaker body hull outside is equipped with dovetail groove and the breaker socket Dovetail groove cooperation.
The conducting plug is oppositely arranged with the static contact component and is connect with conductor, wherein described conducting plug one end Portion is immobilized in the shell, and the other end is stretched out outside shell.
The utility model is further arranged: the moving contact component includes moving contact rack, lock and tension spring, the dynamic touching Head bracket is fixed on shell by rotation axis, and the one end of the tension spring is fixed on shell, the other end and moving contact branch Frame is connected;
The one end of the moving contact rack is matched with static contact component, and the other end is connected by tripping and handle Connection;
The lock is arranged on moving contact rack by rotation axis, and the one end of the lock is opposite with static contact component Setting, the other end is matched with tripping;
It is provided with torsional spring on moving contact rack, lock is driven to match with tripping.
The utility model is further arranged: the tripping is rotatably arranged on moving contact rack, the one end of the tripping It is connected by connecting rod with handle, the other end is provided with clamping part, and the lock is provided with the card slot matched with clamping part.
The utility model is further arranged: the static contact component includes static contact, mandril, iron core spring, iron core, rank Iron, sheath, electromagnetic coil, magnetic yoke;
The one end of the static contact is oppositely arranged with moving contact rack, and the other end and magnetic yoke, iron core stake-fastening are simultaneously It is welded and fixed with electromagnetic coil one end;
The mandril is threaded through in sheath, and one end and the lock of the mandril are oppositely arranged, and the other end is arranged with iron Core spring, and the end is matched with armature.
The utility model is further arranged: double golden components include bimetal leaf and run-on tab, screw, the bimetallic The one end of piece is weldingly fixed on run-on tab, and the other end upwardly extends, and threaded hole, the screw and spiral shell is arranged in the end Pit matches;
The one end bending of the striking mainboard forms positioning region, and the other end forms positioning recess portion and striking portion, institute Positioning recess portion is stated to be parallel to each other with shell bottom wall.
The utility model is further arranged: the leading-out terminal component is equipped with conductive plate, the wire frame connecting with external conductor It is used to connect with external conductor and fastening with fastening screw;
The conductive plate is oppositely arranged and is welded and fixed with double golden components.
The utility model is further arranged: the arc quenching system includes arc-chutes, arc separating wall, the arc-chutes V-type opening End is oppositely arranged the other end with the static contact and is oppositely arranged with shell.The utility model the utility model has the advantages that
1. breaker body quickly can be plugged directly along the dovetail groove of breaker socket and carry out installation and replacement, effectively shorten disconnected The electric time;
2, plug-in type breaker, which is mounted in ammeter box or distribution box, need not remove electricity when needing replacing breaker body Source external cabling, especially when the occasion that source side external cabling does not allow electricity consumer to touch;
3, wherein end of incoming cables component is fully mounted in breaker Socket casing, not exposed external cabling and electrification or Current-carrying part, can be by electrification that hand touches or current-carrying part after breaker body pull-out, it is ensured that power supply safety yet;
4, it is realized in electric energy metering box or electrical complete cabinet using insulating barrier and separates installation.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of internal structure of plug-in type miniature circuit breaker of the utility model;
Fig. 2 is a kind of plug-in type miniature circuit breaker embodiment insert state structural schematic diagram of the utility model;
Fig. 3 is a kind of plug-in type miniature circuit breaker exploded perspective schematic diagram of the utility model;
Fig. 4 is a kind of dovetail groove fit structure schematic diagram of plug-in type miniature circuit breaker of the utility model;
Fig. 5 is a kind of breaker body structural schematic diagram of plug-in type miniature circuit breaker of the utility model;
Fig. 6 is a kind of breaker socket structure schematic diagram of plug-in type miniature circuit breaker of the utility model;
Description of symbols: 1, breaker socket;11, end of incoming cables component;12, breaker socket dovetail groove recess portion;2, break Road device ontology;21, shell;211, breaker body dovetail groove protrusion;22, conducting plug;23, moving contact component;231, it latches; 232, tripping;24, static contact component;241, mandril;25, double gold protection components;251, bimetal leaf;252, screw is pressed closer; 253, run-on tab;26, leading-out terminal component;27, arc quenching system;28, handle.
Specific embodiment
A kind of plug-in type miniature circuit breaker embodiment of the utility model is described in further details referring to attached drawing 1 to Fig. 6.
A kind of plug-in type miniature circuit breaker, including breaker socket 1 and breaker body 2, open up on breaker socket 1 There is breaker socket dovetail groove recess portion 12 compatible with breaker body 2, correspondingly on the breaker body shell 21 Equipped with breaker body dovetail groove protrusion 211, the breaker body 2 passes through the open circuit that 2 shell 21 of breaker body is equipped with Device ontology dovetail groove protrusion 211 and 1 breaker socket dovetail groove recess portion 12 of breaker socket cooperate opposite sliding, breaker body Conducting plug 22 on 2 inserts or pull out the end of incoming cables component 11 of breaker socket 1, as a result, breaker body 2 can quickly from Directly plug is switched on or switched off circuit in breaker socket 1, realizes Fast Installation replacement.
The breaker body 2 includes shell 21, breaker body dovetail groove protrusion 211, conducting plug 22, moving contact group Part 23, static contact component 24, double gold protection components 25, leading-out terminal component 26, arc quenching system 27, handle 28.
Wherein the conducting plug 22 is used to patch cooperation with the end of incoming cables component 11 of breaker socket 1 and be switched on or switched off outside Conducting wire is connect, moving contact component 23 and static contact component 24 are switched on or switched off breaker body 2 under the operation of handle 28 Inner conductive route.The static contact component 24 also has short-circuit protection function, when plug-in type breaker is in moving contact component 23 It being closed and connects with static contact component 24, when occurring being greater than the electric current of short-circuit protection setting in route, mandril 241 is pushed up to lock 231, Lock 231 is threaded off with tripping 232, and moving contact component 23 separates realization short circuit with static contact component 24 and disconnects protection.
Double gold protection components 25 include bimetal leaf 251, press closer screw 252, run-on tab 253 in the breaker body 2.
It is wherein provided on the bimetal leaf 251 and presses closer screw 252, when having more than overload current protection setting in route Be less than short circuit current protection setting electric current flow through when, bimetal leaf 251 fever bending and by press closer screw 252 push up to Lock 231, lock 231 are threaded off with tripping 232, and moving contact component 23 is separated with static contact component 24 realizes that circuit overload disconnects Protection.
The setting of arc quenching system 27 when short circuit or overload protection occurs for realizing to moving contact in the breaker body 2 The electric arc that component 23 generates when separating with static contact component 24 is split, cools down, blow-out.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (9)

1. a kind of plug-in type miniature circuit breaker, it is characterized in that: including breaker socket and breaker body, on breaker socket Offer the breaker socket dovetail groove recess portion that installation is adapted with breaker body dovetail groove protrusion;
The breaker socket is equipped with the end of incoming cables component being connected with outer lead;
The breaker body includes shell and conducting plug, and moving contact component, static contact component, double gold are provided in shell The hand that protection component, leading-out terminal component, arc quenching system and control both moving contact component and static contact component are switched on or switched off Handle;Wherein conducting plug stretches out outside shell, and the conducting plug connect with static contact component conductor, double gold protect components and The connection of leading-out terminal component conductor;
It is described to lead when the breaker body is mounted in the breaker socket dovetail groove and is inserted into the breaker socket Electric plug is connected with end of incoming cables component, and the leading-out terminal component is connected with external outlet;
When the breaker body is mounted in the breaker socket dovetail groove, the conducting plug and the end of incoming cables component When separation, the breaker body disconnects conductor with the breaker socket and connect.
2. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the breaker socket is provided with and leads To dovetail groove protrusion, the breaker body is placed in breaker socket by being oriented to dovetail groove, and the breaker body passes through Guiding dovetail groove slides in breaker socket, connects and separates with breaker socket for breaker body.
3. a kind of plug-in type miniature circuit breaker according to claim 2, it is characterized in that: outside the shell of the breaker body Side is equipped with breaker body dovetail groove protrusion and the breaker socket dovetail groove recesses fit.
4. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the conducting plug and the stationary contact Head assembly is oppositely arranged and is connected with conductor, wherein the conducting plug one end is immobilized in the shell, shell is stretched out in the other end In vitro.
5. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the moving contact component includes dynamic touching Head bracket, lock and tension spring, the moving contact rack are fixed on shell by rotation axis, and the one end of the tension spring is fixed on On shell, the other end is connected with moving contact rack;
The one end of the moving contact rack is matched with static contact component, and the other end is connected company by tripping and handle It connects;
The lock is arranged on moving contact rack by rotation axis, and the one end of the lock is opposite with static contact component to be set It sets, the other end is matched with tripping;
It is provided with torsional spring on moving contact rack, lock is driven to match with tripping.
6. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the static contact component includes stationary contact Head, mandril, iron core spring, iron core, armature, sheath, electromagnetic coil, magnetic yoke;
The one end of the static contact is oppositely arranged with moving contact rack, the other end and magnetic yoke, iron core stake-fastening and with electricity Magnetic coil one end is welded and fixed;
The mandril is threaded through in sheath, and one end and the lock of the mandril are oppositely arranged, and the other end is arranged cored bullet Spring, and the end is matched with armature.
7. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: double gold protection components include double Sheet metal and run-on tab press closer screw, and the one end of the bimetal leaf is weldingly fixed on run-on tab, and the other end prolongs upwards It stretches, and threaded hole is arranged in the end, it is described to press closer screw and corresponding threaded holes conjunction;
The one end bending of the run-on tab forms positioning region, and the other end forms positioning recess portion and striking portion, the positioning Concave part is parallel to each other with shell bottom wall.
8. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the leading-out terminal component be equipped with it is outer Conductive plate, wire frame and the fastening screw of portion's conductor connection with external conductor for connecting and fastening;
The conductive plate is oppositely arranged and is welded and fixed with double gold protection components.
9. a kind of plug-in type miniature circuit breaker according to claim 1, it is characterized in that: the arc quenching system includes arc extinguishing Room, arc separating wall, the arc-chutes are oppositely arranged the other end with the static contact component and are oppositely arranged with shell.
CN201821672068.4U 2018-10-16 2018-10-16 A kind of plug-in type miniature circuit breaker Active CN209000848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821672068.4U CN209000848U (en) 2018-10-16 2018-10-16 A kind of plug-in type miniature circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821672068.4U CN209000848U (en) 2018-10-16 2018-10-16 A kind of plug-in type miniature circuit breaker

Publications (1)

Publication Number Publication Date
CN209000848U true CN209000848U (en) 2019-06-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821672068.4U Active CN209000848U (en) 2018-10-16 2018-10-16 A kind of plug-in type miniature circuit breaker

Country Status (1)

Country Link
CN (1) CN209000848U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110634718A (en) * 2019-08-22 2019-12-31 南安市董山尾机械科技有限公司 Circuit breaker for low-voltage switch cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110634718A (en) * 2019-08-22 2019-12-31 南安市董山尾机械科技有限公司 Circuit breaker for low-voltage switch cabinet

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