CN220821448U - Circuit breaker convenient to establish ties - Google Patents

Abstract

The utility model discloses a circuit breaker convenient to connect in series, which comprises a base and a cover plate, wherein the base is provided with a circuit breaker body, the base is provided with a first hollow column, the inner wall of the first hollow column is provided with a fixing component, the end face of the first hollow column is provided with a conducting strip, the cover plate is provided with a second hollow column, the second hollow column is provided with a conducting column, the cover plate is provided with a baffle plate and is arranged in the center of the second hollow column, and the base is provided with a first spring and is abutted against the conducting column so that the conducting column is abutted against the baffle plate. According to the utility model, the baffle leaves the center of the second hollow column, the first spring releases counterforce to push the conductive column to move and is abutted against the conductive sheet of the other circuit breaker, the conductive column is clamped by the fixing component, so that the connection reliability is ensured, and the connection between the conductive sheet, the second extension block and the static sheet is in a series connection design, so that the product has the advantages of improving wiring efficiency, being convenient to operate, being high in safety and the like.

Description

Circuit breaker convenient to establish ties

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a circuit breaker convenient for series connection.

Background

The circuit breaker is a terminal protection electrical appliance which is most widely used in the introduction of a building electrical terminal distribution device, and is used for protecting single-phase and three-phase short circuits, overload, overvoltage and the like below 5A, and comprises four types of single-pole 1P, two-pole 2P, three-pole 3P, four-pole 4P and the like. The miniature circuit breaker can be used for switching on, carrying and breaking current under normal circuit conditions, and also can be used for switching on, carrying for a certain time and breaking current under specified abnormal circuit conditions, and is widely applied to various electricity utilization places. Miniature circuit breakers consist of operating mechanisms, contacts, protection devices (various trips), and arc extinguishing systems, etc., typically mounted in rows within an electrical cabinet, and often arranged in parallel.

Series connection is the connection of a plurality of circuit breakers together to form a series circuit. The circuit has the advantages that the circuit is used for protecting different electrical equipment respectively, the operation is reliable, the protection effect on the electrical equipment is obvious, when the existing plurality of circuit breakers are connected in series, one wire is fixed through the wiring end between the two circuit breakers, the wire distance between the circuit breakers is required to be measured before connection, an insulating layer is stripped after the wires are cut, finally, screws are screwed down, the operation is inconvenient due to the design, a user cannot conveniently and quickly connect the circuit breakers, the cutting length of the wires is inconvenient to grasp, and the wiring time is prolonged, therefore, the inventor makes a beneficial design, finds out a method for solving the problem, and the technical scheme to be introduced below is generated under the background.

Disclosure of Invention

The utility model aims to overcome the defects of the traditional circuit breaker design, and provides a product with high wiring efficiency, convenient operation and high safety.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a circuit breaker convenient to establish ties, includes base, apron, the base is equipped with the circuit breaker body, the base is equipped with first hollow post, the inner wall of first hollow post is equipped with fixed subassembly, the terminal surface of first hollow post is equipped with the conducting strip, the apron is equipped with the hollow post of second, the hollow post of second is equipped with the conducting strip, the apron is equipped with the baffle, and sets up the center at the hollow post of second, the base is equipped with first spring, and the butt conducting strip makes conducting strip butt baffle, the conducting strip is equipped with first extension piece, second extension piece to pass the hollow post of second, first extension piece passes the apron, the second extension piece is connected with the conducting strip, the apron is equipped with quiet piece, and is connected with the wiring end of circuit breaker body.

Preferably, the base is provided with a supporting plate and is located above the conducting strip, the supporting plate is provided with a cylinder, the first spring is arranged on the cylinder, the side wall of the cover plate is provided with a yielding through hole, a first blind hole is formed below the yielding through hole, and a limiting through hole is formed above the yielding through hole.

Preferably, the first hollow post is equipped with the first recess of stepping down of a plurality of, the first recess of stepping down is equipped with the breach, the both sides of first recess of stepping down are equipped with spacing recess, the first recess of stepping down is equipped with the second blind hole, the side of the hollow post of second is equipped with the recess of stepping down of the second, the both sides of hollow post are equipped with and dodge the recess.

Preferably, the fixed subassembly comprises second spring, limiting plate, the limiting plate sets up at spacing recess, first recess of stepping down, the limiting plate is equipped with the fixed column, the terminal surface shape of fixed column sets up to spherically, terminal surface and the limiting plate of second blind hole are butt to the second spring, make the terminal surface of limiting plate butt spacing recess, and the fixed column passes the breach, the conducting column is equipped with annular groove.

Preferably, the baffle passes the through hole of stepping down to set up at the second recess of stepping down, the baffle is equipped with the lug, the lug is equipped with the third blind hole, the third blind hole is equipped with the third spring, and the terminal surface of butt first blind hole to act on the lug, make baffle butt second recess of stepping down, the baffle is equipped with the handle.

Preferably, the first extending block and the second extending block penetrate through the avoidance groove, the first extending block is provided with an insulating handle and penetrates through the limiting through hole, and the second extending block is provided with a moving point.

Preferably, the connection between the second extension block and the conductive sheet and the connection between the static sheet and the terminal of the breaker body are provided as copper braided wires, and the static sheet is provided with a static point.

The beneficial effects are that:

compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, when two circuit breakers are arranged side by side, the handle is pulled outwards, the baffle leaves the center of the second hollow column, the conductive column is blocked, the first spring releases counter force to push the conductive column to move and enter the first hollow column and is abutted against the conductive sheet, the fixed column is abutted against the annular groove, the conductive column is ensured to be connected with the first hollow column reliably, the counter force of the first spring ensures that the conductive column is in closer contact with the conductive sheet and the moving point and the stationary point, at the moment, the conductive sheet, the conductive column and the wiring terminal of the circuit breaker body form circuit conduction, the problems of inconvenience in operation and prolonged wiring time are overcome through the design, and the product has the advantages of improving wiring efficiency and convenience in operation.

(2) According to the utility model, through the mode that the connection among the conducting strips, the conducting columns and the wiring terminals of the circuit breaker body is set to be connected in series, other people are prevented from extending into the first hollow column through tools to touch the conducting strips which are not connected with the circuit breaker by mistake, the design improves the safety of products, the connection of wires and the wiring terminals is avoided, the overlong exposed parts of the wires are avoided, and the wires are exposed to the positions which can be touched by the people, so that the products have the advantage of high safety.

Drawings

Fig. 1 is a schematic diagram of a circuit breaker of the present utility model for facilitating series connection;

Fig. 2 is a schematic diagram showing an internal structure of a circuit breaker for facilitating series connection according to the present utility model;

FIG. 3 is an exploded view of a circuit breaker of the present utility model for facilitating series connection;

FIG. 4 is a schematic diagram of a circuit breaker of the present utility model for facilitating series connection;

Fig. 5 is a schematic view showing a partial structure of a cover plate of a circuit breaker for facilitating series connection according to the present utility model;

Fig. 6 is a schematic side view of a circuit breaker of the present utility model for facilitating assembly of the circuit breakers in series;

Fig. 7 is an enlarged view of a partial structure of detail a of the circuit breaker of fig. 6 for facilitating series connection according to the present utility model;

The correspondence between the reference numerals and the component names in the drawings is as follows:

reference numerals: 1. a base; 2. a cover plate; 3. a circuit breaker body; 4. a fixing assembly; 5. a baffle; 6. a conductive post; 7. copper braided wire;

11. A first hollow column; 12. a conductive sheet; 13. a first spring; 14. a support plate; 15. a cylinder; 16. a first relief groove; 17. a notch; 18. a limit groove; 19. a second blind hole;

21. A second hollow column; 22. a relief through hole; 23. a first blind hole; 24. limiting through holes; 25. a second relief groove; 26. avoiding the groove; 27. static piece; 28. a dead point;

41. a second spring; 42. a limiting plate; 43. fixing the column;

51. A bump; 52. a third blind hole; 53. a third spring; 54. a handle;

61. A first extension block; 62. a second extension block; 63. an annular groove; 64. an insulating grip; 65. and (5) moving points.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 7, a circuit breaker convenient for series connection includes a base 1 and a cover plate 2, wherein the base 1 is provided with a circuit breaker body 3, the base 1 is provided with a first hollow column 11, the inner wall of the first hollow column 11 is provided with a fixing component 4, the end face of the first hollow column 11 is provided with a conducting strip 12, the cover plate 2 is provided with a second hollow column 21, the second hollow column 21 is provided with a conducting column 6, the cover plate 2 is provided with a baffle 5 and is arranged in the center of the second hollow column 21, the base 1 is provided with a first spring 13 and is abutted against the conducting column 6, the conducting column 6 is abutted against the baffle 5, the conducting column 6 is provided with a first extension block 61 and a second extension block 62 and penetrates through the second hollow column 21, the first extension block 61 penetrates through the cover plate 2, the second extension block 62 is connected with the conducting strip 12, the cover plate 2 is provided with a static strip 27 and is connected with a terminal of the circuit breaker body 3;

it should be noted that the base 1 is provided with a support plate 14 and is located above the conducting strip 12, the support plate 14 is provided with a cylinder 15, the first spring 13 is arranged on the cylinder 15, the side wall of the cover plate 2 is provided with a yielding through hole 22, a first blind hole 23 is arranged below the yielding through hole 22, a limiting through hole 24 is arranged above the yielding through hole 22, the support plate 14 provides a supporting function for the first spring 13, the cylinder 15 prevents the first spring 13 from falling off, the yielding through hole 22 is convenient for the movable use of the baffle 5, the first blind hole 23 provides an accommodating space for the second spring 41, and the limiting through hole 24 limits the extending and retracting movable distance of the conducting column 6;

It should be noted that the first hollow column 11 is provided with a plurality of first abdicating grooves 16, the first abdicating grooves 16 are provided with notches 17, two sides of the first abdicating grooves 16 are provided with limiting grooves 18, the first abdicating grooves 16 are provided with second blind holes 19, the side surfaces of the second hollow column 21 are provided with second abdicating grooves 25, two sides of the hollow column are provided with avoiding grooves 26, the first abdicating grooves 16 provide a movable space for the limiting plate 42, the notches 17 are convenient for the fixing column 43 to move, the limiting grooves 18 limit the extending distance of the fixing column 43, the second blind holes 19 provide an accommodating space for the second springs 41, the occurrence of deformation and elastic potential energy reduction problems caused by the fact that the screw pitches of the second springs 41 are excessively compressed is avoided, the second abdicating grooves 25 enable the baffle 5 to be exactly positioned at the center of the second hollow column 21, and the avoiding grooves 26 are convenient for the first extending blocks 61 and the second extending blocks 62 to move;

it should be noted that, the fixing component 4 is composed of a second spring 41 and a limiting plate 42, the limiting plate 42 is arranged in the limiting groove 18 and the first abdicating groove 16, the limiting plate 42 is provided with a fixing column 43, the end face shape of the fixing column 43 is spherical, the second spring 41 is abutted against the end face of the second blind hole 19 and the limiting plate 42, the limiting plate 42 is abutted against the end face of the limiting groove 18, the fixing column 43 passes through the notch 17, the conductive column 6 is provided with an annular groove 63, the limiting plate 42 is matched with the limiting groove 18 and the first abdicating groove 16 for use, the spherical design reduces the resistance of the fixing column 43 entering the annular groove 63, and the annular groove 63 is matched with the fixing column 43 to play a role in fixing the conductive column 6;

It is worth mentioning that the baffle 5 passes through the relief through hole 22 and is arranged in the second relief groove 25, the baffle 5 is provided with a bump 51, the bump 51 is provided with a third blind hole 52, the third blind hole 52 is provided with a third spring 53 and is abutted against the end face of the first blind hole 23 and acts on the bump 51, the baffle 5 is abutted against the second relief groove 25, the baffle 5 is provided with a handle 54, the baffle 5 plays a role of blocking the conductive column 6 from extending out of the second hollow column 21, the bump 51 is matched with the third blind hole 52 for use, the third blind hole 52 provides an accommodating space for the third blind hole 52, the problem that the screw pitch of the third spring 53 is excessively compressed to cause deformation and elastic potential energy reduction is solved, and the handle 54 is convenient for a user to control the activity of the baffle 5;

It should be noted that the first extension block 61 and the second extension block 62 penetrate through the avoidance groove 26, the first extension block 61 is provided with an insulating handle 64 and penetrates through the limiting through hole 24, the second extension block 62 is provided with a moving point 65, the insulating handle 64 prevents other personnel from touching by mistake, so that an electric shock accident of the personnel occurs, and the moving point 65 can bear larger passing current;

It should be noted that the connection between the second extension block 62 and the conductive sheet 12, and between the static sheet 27 and the terminal of the breaker body 3 is set as the copper braided wire 7, the static sheet 27 is provided with the static point 28, the copper braided wire 7 has the advantages of high conductivity, strong fatigue resistance and flexibility, and the second extension block 62 needs to be movable, therefore, the connection between the second extension block 62 and the conductive sheet 12, the connection between the static sheet 27 and the breaker body 3 can be completed by spot welding by adopting the copper braided wire 7, and the static point 28 can bear larger passing current.

The principle of use of the utility model will now be described as follows:

When two or more circuit breakers are arranged side by side, the baffle 5 is separated from the center of the second hollow column 21 by pulling the handle 54 outwards until the baffle 5 stops moving outwards after the lug 51 abuts against the side wall of the cover plate 2, the third spring 53 is in an energy storage state, the conductive column 6 loses resistance of the baffle 5, the first spring 13 releases counterforce to push the conductive column 6 to move, and moves together with the first extension block 61, the second extension block 62, the insulating handle 64 and the moving point 65 until the insulating handle 64 abuts against the limiting through hole 24, the conductive column 6 stops moving, the handle 54 is released, the baffle 5 abuts against the curved surface of the conductive column 6, the conductive column 6 enters the first hollow column 11, the fixed column 43 is extruded, the limiting plate 42 moves to the other side of the limiting groove 18, the second spring 41 is in an energy storage state until the annular groove 63 and the fixed column 43 are in the same straight line, the second spring 41 releases counterforce to push the limiting plate 42 to reset, the fixed column 43 is abutted against the annular groove 63, the conductive column 6 is fixed, at the moment, the conductive column 6 is abutted against the conductive sheet 12, the moving point 65 is abutted against the stationary point 28, after the circuit breaker is electrified, current sequentially passes through the wiring terminal, the copper braided wire 7 between the stationary sheet 27 and the wiring terminal, the stationary point 28, the moving point 65, the second extension block 62, the conductive column 6, the copper braided wire 7 between the moving sheet and the conductive sheet 12 to form circuit conduction;

When the separation line is required to be connected, after the power is off, the insulating handle 64 is pushed to enable the conductive post 6 to leave the conductive sheet 12 and retract the second hollow post 21, so that the first spring 13 is in an energy storage state, until the insulating handle 64 abuts against the side surface of the limiting through hole 24, the conductive post 6 stops moving, the baffle 5 loses the blocking of the conductive post 6, and the third spring 53 releases the counter force to push the baffle 5 to reset and abuts against the second abdication groove 25.

Through the design scheme, the product can realize the advantages of improving wiring efficiency, being convenient to operate and high in safety.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims (7)

1. The utility model provides a circuit breaker convenient to establish ties, includes base (1), apron (2), base (1) are equipped with circuit breaker body (3), its characterized in that: the base (1) is equipped with first hollow post (11), the inner wall of first hollow post (11) is equipped with fixed subassembly (4), the terminal surface of first hollow post (11) is equipped with conducting strip (12), apron (2) are equipped with second hollow post (21), second hollow post (21) are equipped with conducting strip (6), apron (2) are equipped with baffle (5), and set up the center at second hollow post (21), base (1) is equipped with first spring (13), and butt conducting strip (6), makes conducting strip (6) butt baffle (5), conducting strip (6) are equipped with first extension piece (61), second extension piece (62) to pass second hollow post (21), first extension piece (61) pass apron (2), second extension piece (62) are connected with conducting strip (12), apron (2) are equipped with quiet piece (27), and are connected with the wiring end of circuit breaker body (3).

2. The circuit breaker facilitating series connection of claim 1, wherein: the base (1) is provided with a supporting plate (14) and is located above the conducting strip (12), the supporting plate (14) is provided with a cylinder (15), the first spring (13) is arranged on the cylinder (15), the side wall of the cover plate (2) is provided with a yielding through hole (22), the lower part of the yielding through hole (22) is provided with a first blind hole (23), and the upper part of the yielding through hole (22) is provided with a limiting through hole (24).

3. The circuit breaker facilitating series connection of claim 2, wherein: the first hollow column (11) is equipped with a plurality of first recess (16) of stepping down, first recess (16) of stepping down is equipped with breach (17), the both sides of recess (16) of stepping down are equipped with spacing recess (18), first recess (16) of stepping down are equipped with second blind hole (19), the side of second hollow column (21) is equipped with second recess (25) of stepping down, the both sides of hollow column are equipped with and dodge recess (26).

4. A circuit breaker facilitating serial connection as claimed in claim 3, wherein: the fixed subassembly (4) comprises second spring (41), limiting plate (42) set up at spacing recess (18), first recess (16) of stepping down, limiting plate (42) are equipped with fixed column (43), the terminal surface shape of fixed column (43) sets up to spherically, terminal surface and limiting plate (42) of second blind hole (19) are held in place in second spring (41) butt, make the terminal surface of limiting plate (42) butt spacing recess (18), and fixed column (43) pass breach (17), conducting column (6) are equipped with annular groove (63).

5. The circuit breaker facilitating serial connection of claim 4, wherein: the baffle (5) passes through the through hole (22) of stepping down to set up at the recess (25) of stepping down of second, baffle (5) are equipped with lug (51), lug (51) are equipped with third blind hole (52), third blind hole (52) are equipped with third spring (53), and the terminal surface of butt first blind hole (23) to act on lug (51), make baffle (5) butt second recess (25) of stepping down, baffle (5) are equipped with handle (54).

6. The circuit breaker facilitating serial connection of claim 5, wherein: the first extending block (61) and the second extending block (62) penetrate through the avoidance groove (26), the first extending block (61) is provided with an insulating handle (64) and penetrates through the limiting through hole (24), and the second extending block (62) is provided with a moving point (65).

7. The circuit breaker facilitating series connection of claim 1, wherein: the connection between the second extension block (62) and the conducting strip (12) and the connection between the static strip (27) and the wiring end of the breaker body (3) is set to be copper braided wires (7), and the static strip (27) is provided with a static point (28).