Quickly-connected molded case circuit breaker

Abstract

The utility model discloses a quick-connection molded case circuit breaker. The quick-connection molded case circuit breaker comprises a circuit breaker main body; the circuit breaker further comprises a plurality of first wiring terminals which are connected to the wire inlet end of the circuit breaker main body; the second wiring terminals are connected to the wire outlet end of the circuit breaker main body, and the second wiring terminals and the first wiring terminals are arranged at intervals; the first wiring terminal comprises a first connecting part, one end of which is connected with the circuit breaker main body; the first accommodating part is connected to the other end of the first connecting part and is used for accommodating the end part of the first cable; the first torque screw is connected to the side wall of the first accommodating part and is used for pressing the first cable; the second wiring terminal comprises a second connecting part, one end of which is connected with the circuit breaker main body; the second accommodating part is connected to the other end of the second connecting part and is used for accommodating the end part of a second cable; the second torque screw is connected to the side wall of the second accommodating part and is used for pressing the second cable; the technical problems that the assembling efficiency is relatively low and the safety is relatively poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical device technical field, specifically is a kind of quick connection's moulded case circuit breaker. BACKGROUND

[0002] Moulded case circuit breaker is an important electrical device, can be closed, load and open under normal or abnormal conditions Current, it plays the key role of protection and operation in power system, mainly used for distribution and infrequently start power line and motor etc., ensure the safe and stable operation of power system;

[0003] The structure of moulded case circuit breaker generally includes: outer plastic shell, electromagnetic mechanism assembly, action mechanism assembly, movable contact plate, static contact plate, terminal etc.;Outer plastic shell is used to accommodate and protect internal element;Movable contact plate and static contact plate realize the turn-on and turn-off of circuit by the closure and break of movable contact point;Terminal is used to connect wire / cable;Electromagnetic mechanism assembly includes oil cup support and coil, for generating enough magnetic force to attract action mechanism assembly;Action mechanism assembly includes linkage rod and handle assembly, for transmitting force and operating the action of circuit breaker;

[0004] When the current in circuit exceeds set value, electromagnetic mechanism assembly will generate enough magnetic force to attract action mechanism assembly, so that it acts and cuts off circuit;

[0005] Among them, when terminal is connected with wire / cable, usually screw is fixed, screw is threadedly connected with terminal, and screw is pressed wire / cable on terminal, this connection mode, assembly efficiency is relatively low, and it is easy to appear not to be pressed tightly, lead to local contact bad, and there will be heating and burning, safety is poor, and the length of uniform screw is needed, too long screw, when being pressed, it will contact other components, there is the risk of short circuit. UTILITY MODEL CONTENTS

[0006] In view of the above insufficient of prior art, the purpose is to provide a kind of quick connection's moulded case circuit breaker, to solve the technical problem of relatively low assembly efficiency and relatively poor safety in prior art;

[0007] The technical scheme for realizing the purpose is: a kind of quick connection's moulded case circuit breaker, comprising: circuit breaker main body;Further comprising:

[0008] A plurality of first terminals are connected to the incoming line end of the circuit breaker main body;

[0009] And a plurality of second terminals are connected to the outgoing line end of the circuit breaker main body, and are spaced apart from the first terminals;

[0010] The first wiring terminal comprises a first connecting part connected to one end of the circuit breaker body, a first accommodating part connected to the other end of the first connecting part for accommodating the end of the first cable, and a first torque screw connected to the side wall of the first accommodating part for compressing the first cable.

[0011] The second wiring terminal comprises a second connecting part connected to one end of the circuit breaker body, a second accommodating part connected to the other end of the second connecting part for accommodating the end of the second cable, and a second torque screw connected to the side wall of the second accommodating part for compressing the second cable.

[0012] Further, the number of the first wiring terminal or the second wiring terminal is three.

[0013] Further, the first wiring terminal is connected to the incoming line end of the circuit breaker body along a straight line.

[0014] The second wiring terminal is connected to the outgoing line end of the circuit breaker body along a straight line.

[0015] Further, the first connecting part comprises a first plate connected to the first accommodating part.

[0016] A second plate is arranged in parallel with the first plate and is connected to the circuit breaker body.

[0017] A first arc-shaped corner connects the first plate and the second plate.

[0018] Further, the width dimension A of the second plate is greater than the width dimension B of the first plate.

[0019] The second plate has two through holes.

[0020] Further, the first accommodating part comprises a first inclined top plate connected to the first plate.

[0021] A first cylinder is connected to one end of the first inclined top plate, and the first torque screw is connected to the side wall of the first cylinder. The first cylinder has a first inner space for accommodating the end of the first cable.

[0022] Further, the second connecting part comprises a second arc-shaped corner connected to one end of the second accommodating part.

[0023] A third plate is connected to the other end of the second arc-shaped corner.

[0024] The bending part is connected with one end of the third plate body and extends to the second accommodating part, and has a spacing space between the bending part and the third plate body;

[0025] The convex is connected with the other end of the bending part.

[0026] Further, the width size C of the third plate body is greater than the width size D of the bending part.

[0027] Further, the convex is a square convex block.

[0028] Further, the second accommodating part comprises a second inclined top plate connected with the second arc-shaped corner;

[0029] The second cylindrical body is connected with one end of the second inclined top plate, and the second moment screw is connected on the side wall of the second cylindrical body. The second cylindrical body has a second inner space in the inside. The end of the second cable is accommodated in the second inner space.

[0030] The technical scheme has the beneficial effects that: a plastic shell type circuit breaker with rapid connection is provided. Compared with related technologies, the circuit breaker main body, the first wiring terminal and the second wiring terminal are arranged;

[0031] The first wiring terminal comprises a first connecting part, a first accommodating part and a first moment screw. The first wiring terminal is connected with the circuit breaker main body through the first connecting part;

[0032] The second wiring terminal comprises a second connecting part, a second accommodating part and a second moment screw. The second wiring terminal is connected with the circuit breaker main body through the second connecting part;

[0033] When assembled, the end of the first cable is inserted into the first accommodating part, and the first moment screw is locked. The first cable is compressed between the first accommodating part and the first moment screw. The end of the second cable is inserted into the second accommodating part, and the second moment screw is locked. The second cable is compressed between the second accommodating part and the second moment screw. The assembly is convenient, the assembly efficiency is relatively high, the probability of the cable not being compressed is reduced, the probability of poor contact is reduced, the probability of short circuit is reduced, and the safety is relatively good.

[0034] Therefore, the technical problems of relatively low assembly efficiency and relatively poor safety are overcome, the technical effects of relatively high assembly efficiency and relatively good safety are achieved, and the practicality is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The first wiring terminal and the second wiring terminal are connected with the circuit breaker main body, and the partial sectional view is shown;

[0036] Figure 2 isFigure 1 The right view;

[0037] Figure 3 This is one of the structural schematic diagrams of the first terminal block;

[0038] Figure 4 This is the second schematic diagram of the structure of the first terminal block;

[0039] Figure 5 for Figure 4 The right view;

[0040] Figure 6 This is one of the structural schematic diagrams of the second terminal block;

[0041] Figure 7 This is the second schematic diagram of the structure of the second terminal block;

[0042] Figure 8 for Figure 6 The left view;

[0043] In the figure: 10. First terminal block, 11. First connecting part, 11-1. First plate, 11-2. Second plate, 11-21. Through hole, 11-3. First arc-shaped corner, 12. First receiving part, 12-1. First inclined top plate, 12-2. First cylinder, 12-21. First inner space, 13. First torque screw, 20. Second terminal block, 21. Second connecting part, 21-1. Second arc-shaped corner, 21-2. Third plate, 21-3. Bending part, 21-31. Spacing, 21-4. Protrusion, 22. Second receiving part, 22-1. Second inclined top plate, 22-2. Second cylinder, 22-21. Second inner space, 23. Second torque screw, 100. Circuit breaker body. Detailed Implementation

[0044] To make the content easier to understand, the following detailed description is provided with reference to specific embodiments and accompanying drawings;

[0045] A quick-connect molded case circuit breaker solves the technical problems of relatively low assembly efficiency and relatively poor safety in related technologies. It can be manufactured and used, achieving the positive effects of relatively high assembly efficiency and relatively good safety. The overall concept is as follows:

[0046] Implementation

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown; a quick-connect molded case circuit breaker, comprising: a circuit breaker body 100; and further comprising:

[0048] Several first terminals 10 are connected to the incoming terminals of the circuit breaker body 100;

[0049] And several second terminals 20 are connected to the outgoing terminals of the circuit breaker body 100 and are spaced apart from the first terminals 10;

[0050] The first terminal block 10 includes: a first connecting portion 11, one end of which is connected to the circuit breaker body 100; a first receiving portion 12, connected to the other end of the first connecting portion 11, for receiving the end of the first cable (the cable is explained as an electric wire / cable); and a first torque screw 13, connected to the side wall of the first receiving portion 12, for pressing the first cable.

[0051] The second terminal block 20 includes: a second connecting portion 21, one end of which is connected to the circuit breaker body 100; a second receiving portion 22, connected to the other end of the second connecting portion 21, for receiving the end of the second cable (the cable is explained as an electric wire / cable); and a second torque screw 23, connected to the side wall of the second receiving portion 22, for pressing the second cable.

[0052] Specifically, in implementation, the first terminal 10 is connected to the circuit breaker body 100 through the first connecting part 11, and the second terminal 20 is connected to the circuit breaker body 100 through the second connecting part 21. The end of the first cable is inserted into the first receiving part 12, and the first torque screw 13 is tightened, pressing the first cable between the first receiving part 12 and the first torque screw 13. The end of the second cable is inserted into the second receiving part 22, and the second torque screw 23 is tightened, pressing the second cable between the second receiving part 22 and the second torque screw 23. Assembly is relatively convenient and efficient, and it reduces the probability of cables not being tightened, poor contact, and short circuits, resulting in relatively good safety.

[0053] Another implementation method:

[0054] like Figure 1 , Figure 2 As shown; in implementation, the number of the first terminal 10 or the second terminal 20 is three; the first terminal 10 is connected at intervals along a straight line to the incoming terminal on the circuit breaker body 100; the second terminal 20 is connected at intervals along a straight line to the outgoing terminal on the circuit breaker body 100; it is relatively aesthetically pleasing, and the operation is relatively convenient and the safety is relatively good when assembling cables.

[0055] Another embodiment:

[0056] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The first connecting part 11 comprises: a first plate body 11-1 connected with the first accommodating part 12; a second plate body 11-2 arranged in parallel with the first plate body 11-1 and connected with the circuit breaker body 100; and a first arc-shaped corner 11-3 connecting the first plate body 11-1 and the second plate body 11-2.

[0057] The first accommodating part 12 comprises: a first inclined top plate 12-1 connected with the first plate body 11-1; and a first cylinder 12-2 having one end connected with the first inclined top plate 12-1 and a sidewall connected with the first torque screw 13, the first cylinder 12-2 having a first inner space 12-21 therein, and the first inner space 12-21 containing the end of the first cable.

[0058] The second plate body 11-2 has two through holes 11-21, which are beneficial for the penetration of screws and the connection with the incoming line end of the circuit breaker body 100.

[0059] The width dimension A of the second plate body 11-2 is greater than the width dimension B of the first plate body 11-1, which is beneficial for the control of the dimensions, the relative aesthetics, the increase of the contact area between the second plate body 11-2 and the circuit breaker body 100, and the relative reliability of the connection.

[0060] The first inner space 12-21 is provided, which is, for example, a cylindrical space, beneficial for containing the end of the first cable, facilitating the assembly, and also beneficial for the compression of the first cable by the first torque screw 13.

[0061] The first torque screw 13 is a common structure in the prior art, which is threadedly connected with the first cylinder 12-2, and after the compression of the first cable, the nut on the first torque screw 13 is broken, which is beneficial for the operation, saves time and effort, and after the compression of the first cable, the first torque screw 13 is in the first inner space 12-21 and does not contact other components, which eliminates the risk of short circuit and is relatively safe and relatively aesthetic.

[0062] Another embodiment:

[0063] As Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8The second connecting part 21 comprises a second arc-shaped corner 21-1 connected with the second accommodating part 22, a third plate body 21-2 connected with the other end of the second arc-shaped corner 21-1, a bending part 21-3 connected with the third plate body 21-2, a protrusion 21-4 connected with the other end of the bending part 21-3, and a spacing space 21-31 between the third plate body 21-2 and the bending part 21-3.

[0064] The second accommodating part 22 comprises a second inclined top plate 22-1 connected with the second arc-shaped corner 21-1 and a second cylindrical body 22-2 connected with the second inclined top plate 22-1, wherein the second cylindrical body 22-2 is provided with a second inner space 22-21 in which the end of the second cable is accommodated.

[0065] The width size C of the third plate body 21-2 is greater than the width size D of the bending part 21-3, and the size is controlled to be relatively beautiful.

[0066] The outer shape of the bending part 21-3 is approximately a "7" shaped structure.

[0067] The protrusion 21-4 is a square-shaped protrusion.

[0068] The combination of the second arc-shaped corner 21-1, the third plate body 21-2, the bending part 21-3 and the protrusion 21-4 forms the spacing space 21-31, which is beneficial for assembling with the outlet end of the circuit breaker body 100 and has a relatively large contact area with the circuit breaker body 100 and a relatively good connection reliability.

[0069] The second inner space 22-21 is provided, for example, in a cylindrical shape, which is beneficial for accommodating the end of the second cable, facilitating assembly, and also beneficial for the second torque screw 23 to compress the second cable.

[0070] The second torque screw 23 is a common structure in the prior art and is threadedly connected with the second cylindrical body 22-2. After the second torque screw 23 compresses the second cable, the nut on the second torque screw 23 is broken, which is convenient to operate and saves time and effort. Moreover, after the second torque screw 23 compresses the second cable, the second torque screw 23 is in the second inner space 22-21 and does not contact other components, so there is no risk of short circuit, and the safety is relatively good and relatively beautiful.

[0071] The structure in the prior art is as follows:

[0072] See Figure 1 , Figure 2The circuit breaker main body 100 is a common structure in the prior art, and is not the point of the present application.

[0073] In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the positional relationship based on the position relationship described in the drawings, and are only for the convenience of description or simplification of the description, and do not indicate a specific orientation that must be had; the operation process described in the embodiments is not an absolute use step, and in actual use, corresponding adjustments can be made;

[0074] Unless defined individually, the technical terms or scientific terms used herein should be understood as the usual meaning understood by those skilled in the art; "first", "second" and similar words used in the specification and claims do not indicate any order, quantity or importance, but are used to distinguish different components; similarly, "one" or "a" and the like do not indicate a quantity limit, but indicate the presence of at least one, which should be determined according to the content of the embodiments;

[0075] The above is only a preferred specific embodiment, but the protection scope is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the scope of the disclosed technology according to the technical solutions and the inventive concept, which should be covered within the protection scope.

Claims

1. A quick-connect molded case circuit breaker comprising: The circuit breaker main body (100) is characterized in that it further comprises: a plurality of first wiring terminals (10) connected to the incoming line end of the circuit breaker main body (100); and a plurality of second wiring terminals (20) connected to the outgoing line end of the circuit breaker main body (100) and spaced apart from the first wiring terminals (10); the first wiring terminal (10) comprises a first connecting portion (11) connected to one end of the circuit breaker main body (100), a first accommodating portion (12) connected to the other end of the first connecting portion (11) for accommodating the end of a first cable, and a first torque screw (13) connected to the side wall of the first accommodating portion (12) for compressing the first cable; the second wiring terminal (20) comprises a second connecting portion (21) connected to one end of the circuit breaker main body (100), a second accommodating portion (22) connected to the other end of the second connecting portion (21) for accommodating the end of a second cable, and a second torque screw (23) connected to the side wall of the second accommodating portion (22) for compressing the second cable.

2. A quick-connect molded case circuit breaker according to claim 1, wherein: The number of the first wiring terminals (10) or the second wiring terminals (20) is three.

3. A quick-connect molded case circuit breaker according to claim 2, wherein: The first wiring terminals (10) are spaced apart and connected to the incoming line end of the circuit breaker main body (100) along a straight line; The second wiring terminals (20) are spaced apart and connected to the outgoing line end of the circuit breaker main body (100) along a straight line.

4. A quick-connect molded case circuit breaker according to claim 1 or 3, wherein: The first connecting portion (11) comprises a first plate body (11-1) connected to the first accommodating portion (12); a second plate body (11-2) spaced apart from and arranged perpendicularly to the first plate body (11-1) and connected to the circuit breaker main body (100); and a first arc-shaped corner (11-3) connecting the first plate body (11-1) and the second plate body (11-2).

5. A quick-connect molded case circuit breaker according to claim 4, wherein: The width dimension A of the second plate body (11-2) is greater than the width dimension B of the first plate body (11-1); The second plate body (11-2) has two through holes (11-21) thereon.

6. A quick-connect molded case circuit breaker according to claim 4, wherein: The first accommodating portion (12) comprises a first inclined top plate (12-1) connected to the first plate body (11-1); and a first cylinder (12-2) connected to one end of the first inclined top plate (12-1) and having the first torque screw (13) connected to the side wall thereof, the first cylinder (12-2) having a first inner space (12-21) therein for accommodating the end of the first cable.

7. A quick-connect molded case circuit breaker according to claim 1 or 3, wherein: The second connecting portion (21) comprises a second arc-shaped corner (21-1) connected to one end of the second accommodating portion (22); a third plate body (21-2) connected to the other end of the second arc-shaped corner (21-1); A bending part (21-3) is connected to one end of the third plate body (21-2) and extends to the second accommodating part (22) at the other end, and has a spacing space (21-31) between the third plate body (21-2) and the bending part (21-3). A protrusion (21-4) is connected to the other end of the bending part (21-3).

8. A quick-connect molded case circuit breaker according to claim 7, wherein: The width dimension C of the third plate body (21-2) is greater than the width dimension D of the bending part (21-3).

9. A quick-connect molded case circuit breaker according to claim 7, wherein: The protrusion (21-4) is a square-shaped protrusion.

10. A quick-connect molded case circuit breaker according to claim 7, wherein: The second accommodating part (22) comprises a second inclined top plate (22-1) connected to the second arc-shaped corner (21-1), and a second cylinder (22-2) connected to one end of the second inclined top plate (22-1), with a second force moment screw (23) connected to the side wall, and a second inner space (22-21) in the second cylinder (22-2) for accommodating the end of the second cable. ​

Images