Miniature electric leakage protection circuit breaker

Abstract

The utility model belongs to the technical field of electric leakage protection circuit breakers, and particularly relates to a miniature electric leakage protection circuit breaker, which comprises a clamping seat detachably mounted on a guide rail and a circuit breaker body detachably mounted on the front side of the clamping seat, and the upper end and the lower end of the clamping seat are respectively provided with two wiring mechanisms for wiring. The front side of the clamping seat is provided with four plugging columns which are respectively and electrically connected with the corresponding wiring mechanisms, the back surface of the circuit breaker body is provided with four plugging holes used for wiring, and one ends of the four plugging columns are respectively plugged in the corresponding plugging holes. As the clamping seat is provided with the wiring mechanism for wiring, after the circuit breaker body is pulled out from the clamping seat, an incoming line or an outgoing line in the wiring mechanism cannot be dismounted, so that a zero line and a live line in the incoming line can be prevented from being in contact with each other, and the safety of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of leakage protection circuit breaker, specifically relates to a small leakage protection circuit breaker. BACKGROUND

[0002] The leakage protection circuit breaker comprises an overcurrent release, an arc extinguishing device, a contact system, a wiring terminal, an operating mechanism, a shell and the like.

[0003] The shell of the existing leakage protection circuit breaker is clamped on the installation guide rail through the back fixing clamp, the incoming line and the outgoing line are respectively installed on the upper end and the lower end of the leakage protection circuit breaker through the wiring mechanism, when the leakage protection circuit breaker is damaged, the incoming line and the outgoing line need to be detached from the wiring mechanism, so that the leakage protection circuit breaker can be removed, replaced and overhauled, in the process, the detached incoming line can be contacted with the fire line, thereby affecting the power supply failure, and meanwhile, the operator can be miscontacted with the incoming line. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a small leakage protection circuit breaker to solve the problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a small leakage protection circuit breaker, comprising: a clamping seat detachably installed on the guide rail and a circuit breaker body detachably installed on the front side of the clamping seat, both upper and lower ends of the clamping seat are provided with two wiring mechanisms for wiring, the front side of the clamping seat is provided with four plug-in columns electrically connected with the corresponding wiring mechanisms respectively, the back of the circuit breaker body is formed with four plug-in holes for wiring, and one end of the four plug-in columns is respectively plugged into the corresponding plug-in hole.

[0006] Preferably, two elastic wiring contacts are symmetrically arranged on the inner wall of each plug-in hole, one end of the plug-in column is plugged between the two elastic wiring contacts, and the gap between the two elastic wiring contacts is smaller than the thickness of the plug-in column.

[0007] Preferably, the clamping seat is further provided with a magnet for fixing the circuit breaker body, the back of the circuit breaker body is provided with a recess for accommodating the magnet, and a metal block attracted by the magnet is embedded in the recess.

[0008] Preferably, each wiring mechanism comprises a wire pressing block and an adjusting piece, the end of the clamping seat is provided with a wiring hole for wiring, the inner wall of each wiring hole is electrically connected with the corresponding butt joint column, the front side of the clamping seat is provided with a sunken hole in communication with the wiring hole, the adjusting piece is embeddedly installed in the sunken hole, one end of the wire pressing block is installed on the adjusting piece, and the adjusting piece drives the wire pressing block to approach or move away from the wiring hole.

[0009] Preferably, the adjusting member comprises an adjusting screw, one end of the wire pressing block is provided with a threaded hole for accommodating one end of the adjusting screw, the other end of the adjusting screw is rotatably installed in the recessed hole, a positioning hole for moving positioning is provided between the wire hole and the recessed hole, and the wire pressing block is movably installed in the positioning hole.

[0010] Preferably, the back surface of the clamping seat is provided with a clamping groove for accommodating the guide rail, a clamping piece for fixing the guide rail is movably arranged in the clamping groove, and the cross section of the clamping groove is a wedge-shaped structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a circuit breaker body and a clamping seat of split type structure, the circuit breaker body is not removed from the clamping seat, and the incoming line or outgoing line in the wiring mechanism is not removed, so that the safety of the equipment is improved.

[0013] (2) The utility model discloses two elastic wiring contacts arranged in each plug-in hole, and the stability of the plug-in column and the circuit breaker body is improved after the plug-in column is plugged in the plug-in hole.

[0014] (3) The utility model discloses a magnet and a metal block, so that the circuit breaker body is stably installed on the clamping seat, and the circuit breaker body is prevented from being separated from the clamping seat without external force. DRAWINGS

[0015] Figure 1 It is a side view of the utility model;

[0016] Figure 2 It is a side view of the clamping seat, plug-in column and circuit breaker body of the utility model;

[0017] Figure 3 It is an enlarged view of the circuit breaker body and plug-in hole of the utility model at A;

[0018] Figure 4 It is a front view of the clamping seat and plug-in column of the utility model;

[0019] Figure 5 It is a sectional view of the utility model;

[0020] Figure 6 It is Figure 5 An enlarged view of A;

[0021] Figure 7 It is a cooperation schematic view of the plug-in column, plug-in hole and elastic wiring contact of the utility model;

[0022] As shown in the figure, the circuit breaker comprises a card seat 1, a card slot 2, a card 3, a circuit breaker body 4, four plug-in columns 5, four plug-in holes 7, four recesses 8, four metal blocks 9, four adjusting bolts 10, four inner recesses 11, four wiring holes 12, four wire pressing blocks 13, four threaded holes 14, four positioning holes 15 and four elastic wiring contacts 16. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Reference Figures 1-5 As shown in the figure, the circuit breaker comprises a card seat 1, a card slot 2, a card 3, a circuit breaker body 4, four plug-in columns 5, four plug-in holes 7, four recesses 8, four metal blocks 9, four adjusting bolts 10, four inner recesses 11, four wiring holes 12, four wire pressing blocks 13, four threaded holes 14, four positioning holes 15 and four elastic wiring contacts 16.

[0025] In combination Figures 1-2 And Figure 5 As shown in the figure, the circuit breaker comprises a card seat 1, a card slot 2, a card 3, a circuit breaker body 4, four plug-in columns 5, four plug-in holes 7, four recesses 8, four metal blocks 9, four adjusting bolts 10, four inner recesses 11, four wiring holes 12, four wire pressing blocks 13, four threaded holes 14, four positioning holes 15 and four elastic wiring contacts 16.

[0026] The card slot 2 and the card 3 on the card seat 1 are prior art, and the modification of the card slot 2 and the card 3 is not involved in the utility model, so no further description is given. The card seat 1 is fixedly installed on the guide rail through the card slot 2 and the card 3. The zero line and the live line of the incoming line and the outgoing line are respectively installed on the two wiring mechanisms at the top and the bottom of the card seat 1. At this time, the circuit breaker body 4 is plugged into the plug-in columns 5 through the plug-in holes 7. In this process, the circuit breaker body 4 is powered through the four plug-in columns 5. When the circuit breaker body 4 needs to be repaired, the locking of the wiring mechanisms on the incoming line and the outgoing line does not need to be released. The circuit breaker body 4 can be pulled out of the four plug-in columns 5.

[0027] Further, in order to improve the stability of the electrical connection between the plug-in column 5 and the circuit breaker body 4, reference Figure 7As shown, two elastic wire contact heads 16 are symmetrically arranged on the inner wall of each plug hole 7, and one end of the plug column 5 is plugged between the two elastic wire contact heads 16, and the gap between the two elastic wire contact heads 16 is smaller than the thickness of the plug column 5. When the plug column 5 is plugged into the plug hole 7, the two elastic wire contact heads 16 in the plug hole 7 elastically abut on the plug column 5, and the elastic wire contact heads 16 are electrically connected with the circuit in the circuit breaker body 4, so that the plug column 5 is directly electrically connected with the circuit in the circuit breaker body 4, and the plug column 5 and the circuit breaker body 4 are avoided from being virtually connected through the elastic wire contact heads 16.

[0028] In the utility model, in combination with Figures 2-5 As shown, the card seat 1 of the embodiment is further provided with a magnet 6 for fixing the circuit breaker body 4, the back surface of the circuit breaker body 4 is provided with a groove 8 for accommodating the magnet 6, and the groove 8 is inlaid with a metal block 9 adsorbed by the magnet 6.

[0029] As described above, when the circuit breaker body 4 and the card seat 1 are combined together, one end of the magnet 6 enters the groove 8 and is adsorbed together with the metal block 9 in the groove 8, and before the attraction between the magnet 6 and the metal block 9 is overcome, the circuit breaker body 4 cannot be separated from the card seat 1.

[0030] In the utility model, in combination with Figures 5-6 As shown, each wire connecting mechanism of the embodiment comprises a wire pressing block 13 and an adjusting part, the end of the card seat 1 is provided with a wire hole 12 for wire connection, the inner wall of each wire hole 12 is electrically connected with a corresponding plug column, the front side of the card seat 1 is provided with a sunken hole 11 communicating with the wire hole 12, the adjusting part is inlaidly installed in the sunken hole 11, one end of the wire pressing block 13 is installed on the adjusting part, and the adjusting part drives the wire pressing block 13 to move close to or away from the wire hole 12.

[0031] In combination with Figures 5-6 As shown, the adjusting part comprises an adjusting bolt 10, one end of the wire pressing block 13 is provided with a threaded hole 14 for accommodating one end of the adjusting bolt 10, the other end of the adjusting bolt 10 is rotatably installed in the sunken hole 11, a positioning hole 15 for moving positioning is arranged between the wire hole 12 and the sunken hole 11, and the wire pressing block 13 is movably installed in the positioning hole 15.

[0032] As described above, in the use of the wire connecting mechanism provided by the utility model, the end of the cable is inserted into the wire hole 12, at this time, the adjusting bolt 10 is rotated through a tool, the wire pressing block 13 enters the wire hole 12 under the positioning of the positioning hole 15, and the cable is pressed in the wire hole 12, at this time, the cable is electrically connected with the corresponding plug column 5 through the wire hole 12, and at the same time, the cable is limited in the wire hole 12 by the wire pressing block 13.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small-sized electric leakage protection circuit breaker characterized by comprising: It includes: The card holder (1) detachably mounted on the guide rail and the circuit breaker body (4) detachably mounted on the front side of the card holder (1), both upper and lower ends of the card holder (1) are provided with two wiring mechanisms for wiring, the front side of the card holder (1) is provided with four plug-in columns (5) respectively electrically connected with the corresponding wiring mechanisms, and the back of the circuit breaker body (4) is formed with four plug-in holes (7) for wiring, one end of the four plug-in columns (5) is respectively inserted into the corresponding plug-in hole (7).

2. A miniature arc leakage protection circuit breaker according to claim 1, characterized in that: Two elastic wiring contacts (16) are symmetrically arranged on the inner wall of each plug-in hole (7), one end of the plug-in column (5) is inserted between the two elastic wiring contacts (16), and the gap between the two elastic wiring contacts (16) is smaller than the thickness of the plug-in column (5).

3. A miniature arc leakage protection circuit breaker according to claim 1, wherein: The card holder (1) is further provided with a magnet (6) for fixing the circuit breaker body (4), the back of the circuit breaker body (4) is provided with a recess (8) for accommodating the magnet (6), and the recess (8) is inlaid with a metal block (9) adsorbed by the magnet (6).

4. The miniature arc leakage protection circuit breaker according to claim 1, wherein: Each wiring mechanism includes a wire pressing block (13) and an adjusting member, the end of the card holder (1) is provided with a wiring hole (12) for wiring, the inner wall of each wiring hole (12) is electrically connected with the corresponding butt joint column, the front side of the card holder (1) is provided with a sunken hole (11) communicating with the wiring hole (12), the adjusting member is inlaidly installed in the sunken hole (11), one end of the wire pressing block (13) is installed on the adjusting member, and the adjusting member drives the wire pressing block (13) to move close to or away from the wiring hole (12).

5. A miniature residual-current protective circuit breaker according to claim 4, characterized in that: The adjusting member includes an adjusting bolt (10), one end of the wire pressing block (13) is provided with a threaded hole (14) for accommodating one end of the adjusting bolt (10), and the other end of the adjusting bolt (10) is rotatably installed in the sunken hole (11).

6. A miniature arc leakage protection circuit breaker according to claim 4, wherein: The wiring hole (12) and the sunken hole (11) are provided with a positioning hole (15) for moving positioning.

7. A miniature residual-current protective circuit breaker according to claim 6, characterized in that: The wire pressing block (13) is movably installed in the positioning hole (15).

8. A miniature arc leakage protection circuit breaker according to claim 1, wherein: The back of the card holder (1) is provided with a clamping groove (2) for accommodating the guide rail, and the clamping groove (2) is movably provided with a clamping piece (3) for fixing the guide rail.

9. A miniature residual-current protective circuit breaker according to claim 8, characterized in that: The cross section of the clamping groove (2) is a wedge-shaped structure.

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