CN2704915Y

CN2704915Y - Circuit breakers

Info

Publication number: CN2704915Y
Application number: CN 200420037212
Authority: CN
Inventors: 林凯
Original assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Current assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Priority date: 2004-06-30
Filing date: 2004-06-30
Publication date: 2005-06-15
Anticipated expiration: 2014-06-30

Abstract

The utility model discloses a circuit breaker, mainly comprising a casing. The side of the casing is provided with a conducting wire input end and the inserting and connecting slot of a standard bus-bar row. The position in the casing corresponding to the conducting wire input end and the inserting and connecting slot of the standard bus-bar row is provided with a wire connecting board. A wire connecting clamp is sheathed on the lower hook board of the wire connecting board. The casing is reserved with the space only for the wire connecting clamp to move upwards and downwards. The top board at the upper end of the wire connecting board is provided with a guide hole. The position at the upper end of the wire connecting clamp corresponding to the guide hole is provided with a thread hole. A wire connecting screw is connected with the screw thread of the wire connecting clamp through the guide hole and the thread hole. The inner side wall of the wire connecting board is provided with a convex point. Under the condition that the downward force received by the wire connecting clamp is smaller, the convex point can baffle the wire connecting clamp moving downwards. When the downward force received by the wire connecting clamp exceeds the certain range, the wire connecting clamp can squeeze through the convex point to slide downwards. The circuit breaker can conveniently and quickly splice the standard bus-bar row basing on retaining the connecting mode of the original conducting wire.

Description

Circuit breaker

Technical field

The utility model relates to a kind of circuit breaker, especially relates to the improvement of breaker connection structure.

Background technology

The circuit breaker of Xiao Shouing mainly comprises housing in the market, be provided with inner components and parts in the housing, the side of housing is provided with the lead incoming end and the standard bus-bar patches groove, corresponding lead incoming end and standard bus-bar patch the groove position and are provided with terminal block in the housing, binding clip is enclosed within on the lower lying plate of terminal block, leave the space that only moves up and down in the housing for binding clip, terminal block upper end top board offers pilot hole, the corresponding pilot hole in binding clip upper end offers screwed hole, and terminal screw passes pilot hole and screwed hole is threaded with binding clip.When this circuit breaker need insert the standard bus-bar, at first must rotate terminal screw moves down binding clip, under the effect of the sole mass of binding clip and terminal screw, the standard bus-bar face that patches of the seal face of terminal screw and terminal block always connects together, so bring long obstacle for patching of standard bus-bar.

Summary of the invention

The purpose of this utility model provides a kind of circuit breaker of the standard bus-bar of can conveniently pegging graft on the basis that keeps original lead access way.

For this reason, the circuit breaker that the utility model provides mainly comprises housing, be provided with inner components and parts in the housing, the side of housing is provided with the lead incoming end and the standard bus-bar patches groove, corresponding lead incoming end and standard bus-bar patch the groove position and are provided with terminal block in the housing, binding clip is enclosed within on the lower lying plate of terminal block, leave the space that only moves up and down in the housing for binding clip, terminal block upper end top board offers pilot hole, the corresponding pilot hole in binding clip upper end offers screwed hole, terminal screw passes pilot hole and screwed hole is threaded with binding clip, the madial wall of terminal block is provided with salient point, salient point can hinder binding clip and moves down under the less situation of the downward power that binding clip is subjected to, and binding clip can push through the downward landing of salient point when the downward power that is subjected to when binding clip exceeded certain limit.

Because the madial wall of the terminal block of the utility model circuit breaker is provided with salient point, salient point can hinder binding clip and moves down under the less situation of the downward power that binding clip is subjected to, binding clip can push through the downward landing of salient point when the downward power that is subjected to when binding clip exceeded certain limit, so when the user need peg graft accurate bus-bar on this circuit breaker, at first can be rotated in the forward terminal screw, binding clip is moved down, but terminal screw up moves under the obstruction of the salient point on the terminal block, at this moment can make things convenient for, patch the standard bus-bar quickly, last reverse rotation terminal screw can connect the tight standards bus-bar, in addition if will insert lead, can continue to be rotated in the forward terminal screw, when terminal screw is subjected to plastic casing to its constraint that moves up, binding clip moves down but is subjected to the obstruction of salient point, this moment is as long as the butted line screw applies the dynamics that necessarily is rotated in the forward, binding clip just pushes the sidewall of the shell of constraint mutually by salient point, make it distortion, binding clip moves down simultaneously, until by the salient point on the terminal block, at this moment binding clip, the terminal screw free fall, terminal screw is compared original with the move mode that binding clip falls simultaneously, lead can insert the guiding incoming end, and last reverse rotation terminal screw just can connect tight lead.

Description of drawings

Fig. 1 draws in to terminal block for binding clip, the terminal screw of the utility model circuit breaker, and lead and the standard bus-bar partial cutaway schematic under all can not access state.

Fig. 2 is the binding clip that cooperatively interacts among Fig. 1 and the structural representation of terminal block.

Fig. 3 is in the partial cutaway schematic that can insert the circuit breaker under the standard bus-bar state for after being rotated in the forward terminal screw under Fig. 1 state.

Fig. 4 is the binding clip that cooperatively interacts among Fig. 3 and the structural representation of terminal block.

Fig. 5 is for to continue to be rotated in the forward terminal screw under the state of Fig. 3, binding clip is in the partial cutaway schematic that can insert the circuit breaker under the lead state after the salient point landing.

Fig. 6 is the binding clip that cooperatively interacts among Fig. 5 and the structural representation of terminal block.

Fig. 7 is the structural representation of terminal block.

Fig. 8 is the structural representation of binding clip.

In each accompanying drawing: 1, housing, 2, the lead incoming end, 3, standard Bus-line plug access slot, 4, terminal block, 5, binding clip, 6, lower lying plate, 7, top board, 8, pilot hole, 9, screwed hole, 10, terminal screw, 11, space, 12, madial wall, 13, salient point, 14, upper head plate.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the utility model circuit breaker mainly comprises housing 1, be provided with inner components and parts in the housing 1, the side of housing 1 is provided with lead incoming end 2 and the standard bus-bar patches groove 3, corresponding lead incoming end 2 and standard bus-bar patch groove 3 positions and are provided with terminal block 4 in the housing 1, binding clip 5 is enclosed within on the lower lying plate 6 of terminal block 4, leave the space 11 that only moves up and down in the housing 1 for binding clip 5, binding clip 5 is restricted laterally moving and horizontally rotating all in space 11 under the restriction of housing 1, terminal block 4 upper end top boards 7 offer pilot hole 8, the corresponding pilot hole 8 in binding clip 5 upper ends offers screwed hole 9, terminal screw 10 passes pilot hole 8 and screwed hole 9 is threaded with binding clip 5, the madial wall 12 of terminal block 5 is provided with salient point 13, salient point 13 can hinder binding clip 5 and moves down under the less situation of the downward power that binding clip 5 is subjected to, this obstruction mainly is because binding clip 5 is subjected to the restriction of housing 1, both sides are subjected to salient point 13 and housing 1 extruding respectively, after being hindered, can impel by binding clip 5 terminal screw 10 to rise, up to being stopped by the housing 1 at top, binding clip 5 can push through salient point 13 downward landings when the downward power that is subjected to when binding clip 5 exceeded certain limit, at this moment binding clip 5 retrains the sidewall of its housing 1 by salient point 13 extruding, make the sidewall distortion, binding clip 5 moves down simultaneously, until the salient point 13 that passes through on the terminal block 4, terminal screw 10 landings simultaneously during binding clip 5 landings, the downward power that binding clip 5 is subjected to is produced by the power that is rotated in the forward that terminal screw 10 is subjected to, just can be as long as when terminal screw 10 rises to the top and stopped by housing 1, generally be subjected to power that 6N is rotated in the forward in the present embodiment from salient point 13 top landings, power that also only need 6N with should binding clip 5 must rise the time just can push through salient point 13.In the present embodiment, be in lead and standard bus-bar all can not access state the time when circuit breaker as shown in Figure 1, the upper head plate 14 of binding clip 5 is in the top of salient point 13; Be in can insert standard bus-bar state the time when circuit breaker as shown in Figure 3, the upper head plate 14 of binding clip 5 is in the top of salient point 13, and upper head plate 14 extruding salient points 13; Be in can insert the lead state time when circuit breaker as shown in Figure 5, the upper head plate 14 of binding clip 5 is in the below of salient point 13.

As Fig. 6, shown in Figure 7, can after being subjected to certain power, binding clip push through salient point 13 smoothly again in order to make salient point 13 can either hinder the downward easily landing of binding clip 5 to a certain extent, salient point 13 can semicircular in shape, and the protrusion height of salient point 13 can be 0.5 millimeter.

Claims

1, a kind of circuit breaker, mainly comprise housing (1), housing is provided with inner components and parts in (1), the side of housing (1) is provided with lead incoming end (2) and the standard bus-bar patches groove (3), interior corresponding lead incoming end of housing (1) (2) and standard bus-bar patch groove (3) position and are provided with terminal block (4), binding clip (5) is enclosed within on the lower lying plate (6) of terminal block (4), leave the space (11) that only supplies binding clip (5) to move up and down in the housing (1), terminal block (4) upper end top board (7) offers pilot hole (8), binding clip (5) the corresponding pilot hole in upper end (8) offers screwed hole (9), terminal screw (10) passes pilot hole (8) and screwed hole (9) is threaded with binding clip (5), it is characterized in that: the madial wall (12) of terminal block (5) is provided with salient point (13), salient point (13) can hinder binding clip (5) and moves down under the less situation of the downward power that binding clip (5) is subjected to, and binding clip (5) can push through salient point (13) landing downwards when the downward power that is subjected to when binding clip (5) exceeded certain limit.

2, circuit breaker according to claim 1 is characterized in that: salient point (13) semicircular in shape.

3, circuit breaker according to claim 1 and 2 is characterized in that: the protrusion height of salient point (13) is 0.5 millimeter.