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CN101123154A - Circuit breaker - Google Patents

Circuit breaker Download PDF

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Publication number
CN101123154A
CN101123154A CNA2006101705698A CN200610170569A CN101123154A CN 101123154 A CN101123154 A CN 101123154A CN A2006101705698 A CNA2006101705698 A CN A2006101705698A CN 200610170569 A CN200610170569 A CN 200610170569A CN 101123154 A CN101123154 A CN 101123154A
Authority
CN
China
Prior art keywords
mentioned
terminal
electric wire
circuit
breaker
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.)
Granted
Application number
CNA2006101705698A
Other languages
Chinese (zh)
Other versions
CN101123154B (en
Inventor
山中尚
河上正
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN101123154A publication Critical patent/CN101123154A/en
Application granted granted Critical
Publication of CN101123154B publication Critical patent/CN101123154B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention provides a circuit breaker, which inserts a quick connection terminal to the electrical wire that can not be detachable when the switch mechanism of the circuit breaker main body is on. The constitution is that a lock releasing element is arranged on the circuit breaker main body in the circuit breaker of the quick connection terminal device on the circuit breaker main body. One end of the lock releasing element connects to the handle and the other end extends to the quick connection terminal device. The lock releasing element joints the handle operation to slide. When the handle is in a closing position, the other end of the lock releasing element clamps the connection display part of the quick connection terminal device in order to prevent the display part from moving towards the lock catch spring.

Description

Circuit-breaker
Technical field
The present invention relates to circuit-breaker, especially, relate to the connection with electric wire, the release mechanism that dismounting is easy to link fast the circuit-breaker of arrangements of terminal.
Background technology
When electric wire is connected with the terminal of circuit-breaker, except fastening by terminal screw, also can use the arrangements of terminal of quick binding arrangements of terminal as circuit-breaker, it can not carried out the influence of the fastening operator's of terminal screw qualification, always guarantee constant connection status, and can shorten the operating time that connects electric wire.
As an example of existing this quick binding arrangements of terminal, for example open described in the flat 5-82182 communique (hereinafter referred to as patent documentation 1) as the spy.The electric wire connected mode of the quick binding arrangements of terminal described in this patent documentation 1 is, electric wire is inserted electric wire insert the gap, if ends urged jam plate at electric wire, then the bracket leg support part breaks away from from the holding section and display piece moves, electric wire utilizes latch spring portion to be lockable, be crimped on the terminal board and become wiring state, utilize the mobile demonstration wiring state of display piece simultaneously.In addition, the dismounting mode of electric wire is to extract while rotate electric wire.
Patent documentation 1: the spy opens flat 5-82182 communique, and (go in the 3rd page of left hurdle the 48th row~right hurdle the 7th, Fig. 1)
Summary of the invention
The structure of the quick binding arrangements of terminal of this existing circuit-breaker is, because at the travelling contact that utilizes lever operated circuit-breaker main body and the portion of mechanism that the relative fixed contact opens and closes and link fast and do not have institutional association between the arrangements of terminal, so become when dismounting and quick binding arrangements of terminal wire connecting, irrelevant with the state of circuit breaker electrifying or not energising, electric wire can be dismantled.
Electric wire is under the situation of quick binding arrangements of terminal dismounting when circuit-breaker is in "on" position, there is following problems, promptly, at electric wire with link fast between the contact site of portion of terminal of arrangements of terminal and can produce electric arc, produce dangerous state, and then, because of the electric arc that produces, the state deteriorating of the contact site of the portion of terminal that contacts with electric wire makes the reliability of contact site reduce.
The present invention proposes for the problem that solves above-mentioned existing apparatus, its purpose is to provide a kind of quick binding arrangements of terminal that has, should link arrangements of terminal fast under the state of the switching mechanism portion connection of circuit-breaker main body, and insert the dismounting of wire connecting with quick binding arrangements of terminal and can not carry out.
The circuit-breaker that the present invention relates to, it has: the circuit-breaker main body, and it has and is installed in the insulation framework and the handle operated from the outside, the fixed contact therefor that is connected/separates with the movable contact of the operation interlock of this handle, with this movable contact; And link arrangements of terminal fast, it is contained in the insulation framework, be arranged on the face terminals side of foregoing circuit breaker body, can in conjunction with/break away from the ground supporting electric wire, this electric wire is connected or disconnected with the face terminals of circuit-breaker main body, wherein, this circuit-breaker has the releasing locking unit, the operation interlock of itself and above-mentioned handle and the driving of sliding when above-mentioned handle is in the close position, stops the dismounting that is installed in the electric wire on the above-mentioned quick binding arrangements of terminal.
In addition, above-mentioned quick binding arrangements of terminal has: the circuit-breaker main body, and it has and is installed in the insulation framework and the handle operated from the outside, is connected the fixed contact therefor that separates with the movable contact of the operation interlock of this handle, with this movable contact; And link arrangements of terminal fast, and it is contained in the insulation framework, is arranged on the circuit-breaker main body as the arrangements of terminal of foregoing circuit breaker body, and wherein, above-mentioned quick binding arrangements of terminal has:
Link fast side terminal, it is connected with electric wire from the outside; Connect pressing spring, it links fast with this, and side terminal is relative to be disposed, with the electric wire contact-making surface pushing of said wires to above-mentioned quick binding side terminal; Latch spring, moving of its restriction said wires can not extracted it to the direction of electric wire dismounting; Connect display unit, it has the latch spring that is used to push above-mentioned latch spring and removes the mobile restriction of electric wire dismounting that is caused by latch spring and is pressed into portion and latch holding section, this connection display unit moves in the mode that slides up and down in the position that is arranged at the display aperture on the above-mentioned insulation framework in order to show the connection status of said wires; Connect to show spring, its will connect display unit to the direction pretension of above-mentioned latch spring opposition side; Latch, when it did not connect in said wires, restriction showed moving of connection display unit that spring causes by above-mentioned connection with the above-mentioned latch holding section engaging that is connected display unit, removes its engaging simultaneously when said wires connects; And latch spring, its with above-mentioned latch to the above-mentioned direction pretension that is connected display unit engaging, on the foregoing circuit breaker body, has the releasing locking component, the one end is connected with above-mentioned handle, the other end extends to the direction of above-mentioned quick binding arrangements of terminal, slide mobile with the operation interlock of above-mentioned handle, when above-mentioned handle is positioned at make position, the other end of above-mentioned releasing locking component engages with the above-mentioned display unit that is connected, and stops to connect display unit moving to the latch spring direction.
The effect of invention
Circuit breaker in a circuit according to the invention, by the releasing locking unit of increase with circuit-breaker main body handle interlock, when the handle of circuit-breaker main body is positioned at make position and is in "on" position, because can not dismantle easily and the quick arrangements of terminal wire connecting that links, so can between terminal that links arrangements of terminal fast and electric wire, not produce electric arc, can access circuit-breaker with safe quick binding arrangements of terminal.
Description of drawings
Fig. 1 is the overall structure figure of the circuit-breaker in the embodiments of the present invention 1, (a) is the plane graph that the expression electric wire connects the circuit-breaker main body of preceding quick binding arrangements of terminal and off-state, (b) is side view.
Fig. 2 is the structure chart of the circuit-breaker in the embodiments of the present invention 1, (a) be the side view of the circuit-breaker main body of quick binding arrangements of terminal after the expression electric wire connects and off-state, (b) be the enlarged drawing of only representing to link fast arrangements of terminal portion.
Fig. 3 is the structure chart of the circuit-breaker in the embodiments of the present invention 1, is the side view of the circuit-breaker main body of quick binding arrangements of terminal after the expression electric wire connects and closure state.
Fig. 4 is the oblique view that links the quick binding side terminal of arrangements of terminal fast.
Fig. 5 is the oblique view that connects pressing spring and latch spring that links arrangements of terminal fast.
Fig. 6 is the oblique view that links connection the Show Button of arrangements of terminal fast.
Fig. 7 represents to link fast the latch of arrangements of terminal, (a) is front elevation, (b) is side view, (c) is oblique view.
Fig. 8 represents to remove locking component, (a) is front elevation, (b) is side view.
Embodiment
Execution mode 1.
Below, use Fig. 1~Fig. 8, the circuit-breaker of embodiments of the present invention 1 is described.
Fig. 1 is the overall structure figure of the circuit-breaker in the embodiments of the present invention 1, Fig. 1 (a) is the plane graph that the expression electric wire connects the circuit-breaker main body of preceding quick binding arrangements of terminal and off-state, Fig. 1 (b) is a side view, Fig. 2 represents the quick binding arrangements of terminal after electric wire connects and the circuit-breaker main body of off-state, Fig. 2 (a) is a side view, Fig. 2 (b) is the enlarged drawing that the only expression of Fig. 2 (a) links the arrangements of terminal part fast, Fig. 3 is the side view of the circuit-breaker main body of quick binding arrangements of terminal after the expression electric wire connects and closure state, and Fig. 4~Fig. 8 is the skeleton diagram of the main structural components used in the circuit-breaker of execution mode 1.In addition, identical label is represented identical or suitable part among the figure.
In Fig. 1, linking arrangements of terminal 100 fast is made of the insulation framework, this insulation framework is by quick binding terminal middle part pedestal 101, link terminal left side cover 102 (in the drawings fast, the left side is a mains side, the right side is a load-side, promptly, usually be arranged on load-side owing to link arrangements of terminal 100 fast, and circuit-breaker is upside usually with the mains side, so will 102 be called " left side ", be called " right side " with described later 103) and link the right cover 103 of terminal fast and constitute, it is formed by synthetic resin respectively.
Linking on the arrangements of terminal 100 fast, be provided with and be used to the display aperture 100b that inserts the electric wire insertion holes 100a of electric wire described later and be used to confirm the electric wire connection status.
The 1st, the quick binding side terminal (with reference to figure 4) that is connected with the electric wire contact; The 2nd, connect pressing spring, it is oppositely arranged with the electric wire contact-making surface 1a that should link side terminal 1 fast, and electric wire is pushed (with reference to figure 5) to quick binding side terminal 1; The 3rd, latch spring, itself and this connect pressing spring and similarly be oppositely arranged with electric wire contact-making surface 1a, limit so that electric wire can not extracted to its disassembly direction.The 4th, as the connection the Show Button that connects display unit, it is in order to show the connection status of electric wire, mode with slippage about the position of the display aperture 100b that links arrangements of terminal 100 is fast moved, have the latch spring that is used to push latch spring 3 simultaneously and be pressed into 4a of portion and latch holding section 4b (with reference to figure 6), it is formed by synthetic resin.
The 5th, be used for showing spring to the connection of pretension upward with connecting the Show Button 4; The 6th, latch when it does not connect at electric wire, with the latch holding section 4b engaging that is connected the Show Button 4, is removed this holding section when electric wire connects, and it has electric wire support 6a, is formed by synthetic resin.(with reference to figure 7)
The 7th, with latch 6 to the latch spring of the direction pretension that is connected the Show Button 4 engaging.
Circuit-breaker main body 200 is made of the insulation framework, this insulation framework is made of middle part pedestal 201, left side cover 202 and right cover 203, in middle part pedestal 201, accommodate not shown switching mechanism portion, protrude from the insulation framework with the handle 204 of this switching mechanism portion interlock, become from the outside by the structure of manually operating, constitute by synthetic resin respectively.
The 205th, because of the movable contact of the operation interlock of handle 204; The 206th, be disposed at the fixed contact therefor of the mains side of circuit-breaker main body 200; The 207th, the load side terminal screw 208 of circuit-breaker main body 200 is to utilize load side terminal screw 207 and the load side terminal that links fast the circuit-breaker main body that side terminal is connected; 209 is installing hole 204a places that an end is installed in handle 204, and the releasing locking component (with reference to figure 8) that the other end extends to the direction of quick binding arrangements of terminal 100 is formed by metal material.The structure that this releasing locking component 209 slides to the left and right and moves for the operation that utilizes handle 204.
Below, with reference to figure 2 (a) and (b), the action of the quick binding arrangements of terminal 100 in the circuit-breaker of execution mode 1 is described.
Insert the electric wire 300 of peelling off crust if insert gap 100a from electric wire, then electric wire 300 insert until with the electric wire retainer 101a butt of quick binding terminal middle part pedestal 101.When electric wire 300 inserted, the latch spring end 3a by latch spring 3 propped up electric wire 300, makes electric wire 300 can not extract to the direction of dismounting.In addition, electric wire 300 utilizes the spring force that connects pressing spring 2, to the electric wire joint face 1a of the quick binding side terminal 1 that is positioned at relative position pushing.After electric wire 300 is connect pressing spring 2 pushings, utilize the electric wire support 6a of the wire end 300a pushing latch 6 of electric wire 300, latch 6 is the center rotation with the bolt axle 101b of quick binding terminal middle part pedestal 101, removes the engaging with the latch holding section 4b that is connected the Show Button 4.Its result connects the Show Button 4 and utilizes the pretightning force that connects demonstration spring 5, and the connection that moves to quick binding terminal middle part pedestal 101 shows retainer 101c.Show that thus electric wire 300 reaches connection status.
Then, utilize instrument etc. when the direction of arrow pushes will connecting the Show Button 4, the latch spring that connects the Show Button 4 is pressed into the 4a of portion pushing latch spring 3, when latch spring end 3a separates with electric wire 300, can dismantle electric wire 300.
When electric wire 300 dismountings, because the electric wire support 6a of latch 6 is not subjected to the pushing of electric wire 300, return to original position so utilize the pretightning force of latch spring 7, if remove by instrument etc. to connecting the pushing of the Show Button 4, the latch holding section 4b that then connects the Show Button 4 engages with latch 6, turns back to the state before initial electric wire connects.
Below, the action of circuit-breaker main body is described.Fig. 2 is the state of circuit-breaker 200 for disconnecting.By beginning from this off-state to being rotated counterclockwise direction operating grip 204, movable contact 205 is connected with fixed contact therefor, then circuit-breaker becomes closure state, becomes connection shown in Figure 3.In addition, utilize the operation of handle 204, remove also interlock and moving of locking component 209, the end 209a that removes locking component slides and moves, and arrives the following side that links connection the Show Button 4 of arrangements of terminal 100 fast.
As previously mentioned, if electric wire 300 is inserted binding arrangements of terminal 100 fast, then connect the Show Button 4 and move to connection demonstration retainer 101c.Here, operation at the handle 204 that passes through the circuit-breaker main body, movable contact 205 is contacted and when becoming closure state with fixed contact therefor 206, because carry out the end 209a of the releasing locking component 209 of sliding action with handle 204 interlocks, be positioned at the following side that connects the Show Button 4, even so press connection the Show Button 4 in order to dismantle electric wire 300, also can utilize the end 209a that removes locking component 209, restriction connects moving of the Show Button 4 and can not press.Thus, when the circuit-breaker main body is in closure state under the state that is in connection at electric wire 300, can not dismantle electric wire.
As mentioned above, according to embodiment of the present invention 1, the releasing locking component 209 that moves by the handle interlock that increases with the circuit-breaker main body, when the handle 204 of circuit-breaker main body is positioned at make position and is in "on" position, because can not dismantle easily and quick arrangements of terminal 100 wire connecting 300 that link, so can between quick binding terminal 1 that links arrangements of terminal 100 fast and electric wire 300, not produce electric arc, can access circuit-breaker with safe quick binding arrangements of terminal.
In addition, remove locking component by forming by metal material because the strength of materials is than resin height, so the connection display unit can improve the electric wire locking time be pressed into intensity.

Claims (3)

1. circuit-breaker, it has:
The circuit-breaker main body, it has and is installed in the insulation framework and the handle operated from the outside, the fixed contact therefor that is connected/separates with the movable contact of the operation interlock of this handle, with this movable contact; And
Link fast arrangements of terminal, it is contained in the insulation framework, is arranged on the face terminals side of foregoing circuit breaker body, can in conjunction with/break away from the ground supporting electric wire, this electric wire is connected or disconnected with the face terminals of circuit-breaker main body,
It is characterized in that,
This circuit-breaker has the releasing locking unit, the operation interlock of itself and above-mentioned handle and the driving of sliding when above-mentioned handle is in the close position, stops the dismounting that is installed in the electric wire on the above-mentioned quick binding arrangements of terminal.
2. circuit-breaker, it has:
The circuit-breaker main body, it has and is installed in the insulation framework and the handle operated from the outside, is connected the fixed contact therefor that separates with the movable contact of the operation interlock of this handle, with this movable contact; And
Link fast arrangements of terminal, it is contained in the insulation framework, be arranged on the circuit-breaker main body as the arrangements of terminal of foregoing circuit breaker body,
It is characterized in that,
Above-mentioned quick binding arrangements of terminal has:
Link fast side terminal, it is connected with electric wire from the outside;
Connect pressing spring, it links fast with this, and side terminal is relative to be disposed, with the electric wire contact-making surface pushing of said wires to above-mentioned quick binding side terminal;
Latch spring, moving of its restriction said wires can not extracted it to the direction of electric wire dismounting;
Connect display unit, it has the latch spring that is used to push above-mentioned latch spring and removes the mobile restriction of electric wire dismounting that is caused by latch spring and is pressed into portion and latch holding section, this connection display unit moves in the mode that slides up and down in the position that is arranged at the display aperture on the above-mentioned insulation framework in order to show the connection status of said wires;
Connect to show spring, its will connect display unit to the direction pretension of above-mentioned latch spring opposition side;
Latch, when it did not connect in said wires, restriction showed moving of connection display unit that spring causes by above-mentioned connection with the above-mentioned latch holding section engaging that is connected display unit, removes its engaging simultaneously when said wires connects; And
Latch spring, its with above-mentioned latch to the above-mentioned direction pretension that is connected display unit engaging,
On the foregoing circuit breaker body, has the releasing locking component, the one end is connected with above-mentioned handle, the other end extends to the direction of above-mentioned quick binding arrangements of terminal, slide mobile with the operation interlock of above-mentioned handle, when above-mentioned handle is positioned at make position, the other end of above-mentioned releasing locking component engages with the above-mentioned display unit that is connected, and stops to connect display unit moving to the latch spring direction.
3. circuit-breaker as claimed in claim 2 is characterized in that,
Removing locking component is formed by metal.
CN2006101705698A 2006-08-10 2006-12-26 Circuit breaker Expired - Fee Related CN101123154B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006218166A JP4587994B2 (en) 2006-08-10 2006-08-10 Circuit breaker
JP2006218166 2006-08-10
JP2006-218166 2006-08-10

Publications (2)

Publication Number Publication Date
CN101123154A true CN101123154A (en) 2008-02-13
CN101123154B CN101123154B (en) 2010-05-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2006101705698A Expired - Fee Related CN101123154B (en) 2006-08-10 2006-12-26 Circuit breaker

Country Status (2)

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JP (1) JP4587994B2 (en)
CN (1) CN101123154B (en)

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CN102187520A (en) * 2008-09-29 2011-09-14 Abb股份公司 Installation switching device having a screwless clamp terminal
CN105448560A (en) * 2015-12-30 2016-03-30 深圳市泰昂能源科技股份有限公司 Smart switch device
CN106298383A (en) * 2015-06-29 2017-01-04 三菱电机株式会社 Circuit-breaker
CN106816347A (en) * 2017-03-27 2017-06-09 浙江中亿豪科技有限公司 A kind of knockdown breaker
CN108879125A (en) * 2017-05-12 2018-11-23 电子终端公司 terminal
CN110416032A (en) * 2018-04-27 2019-11-05 三菱电机株式会社 Quick Connect Terminal Units and Circuit Breakers
CN111971854A (en) * 2018-03-28 2020-11-20 Wago管理有限责任公司 Connecting terminal, clamping spring of connecting terminal and rail-mounted terminal
CN113257637A (en) * 2020-02-12 2021-08-13 富士电机机器制御株式会社 Circuit breaker
CN116884817A (en) * 2023-09-07 2023-10-13 西门子能源高压开关(杭州)有限公司 Transmission device, undervoltage release and circuit breaker

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JP7359725B2 (en) * 2020-03-19 2023-10-11 日東工業株式会社 terminal structure
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JP2005100678A (en) * 2003-09-22 2005-04-14 Kawamura Electric Inc Terminal cover

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Publication number Priority date Publication date Assignee Title
CN102187520A (en) * 2008-09-29 2011-09-14 Abb股份公司 Installation switching device having a screwless clamp terminal
CN102187520B (en) * 2008-09-29 2013-08-21 Abb股份公司 Installation switching device having a screwless clamp terminal
CN106298383A (en) * 2015-06-29 2017-01-04 三菱电机株式会社 Circuit-breaker
CN105448560A (en) * 2015-12-30 2016-03-30 深圳市泰昂能源科技股份有限公司 Smart switch device
CN106816347A (en) * 2017-03-27 2017-06-09 浙江中亿豪科技有限公司 A kind of knockdown breaker
CN106816347B (en) * 2017-03-27 2018-10-12 浙江中亿豪科技有限公司 A kind of knockdown breaker
CN108879125A (en) * 2017-05-12 2018-11-23 电子终端公司 terminal
CN111971854A (en) * 2018-03-28 2020-11-20 Wago管理有限责任公司 Connecting terminal, clamping spring of connecting terminal and rail-mounted terminal
CN111971854B (en) * 2018-03-28 2022-11-29 Wago管理有限责任公司 Connecting terminal, clamping spring of connecting terminal and rail-mounted terminal
CN110416032A (en) * 2018-04-27 2019-11-05 三菱电机株式会社 Quick Connect Terminal Units and Circuit Breakers
CN110416032B (en) * 2018-04-27 2022-12-13 三菱电机株式会社 Quick connection terminal unit and circuit breaker
CN113257637A (en) * 2020-02-12 2021-08-13 富士电机机器制御株式会社 Circuit breaker
CN113257637B (en) * 2020-02-12 2024-04-09 富士电机机器制御株式会社 Circuit Breaker
CN116884817A (en) * 2023-09-07 2023-10-13 西门子能源高压开关(杭州)有限公司 Transmission device, undervoltage release and circuit breaker
CN116884817B (en) * 2023-09-07 2023-11-28 西门子能源高压开关(杭州)有限公司 Transmission device, undervoltage release and circuit breaker

Also Published As

Publication number Publication date
JP2008041610A (en) 2008-02-21
CN101123154B (en) 2010-05-19
JP4587994B2 (en) 2010-11-24

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Granted publication date: 20100519

Termination date: 20201226