Tripping structure of intelligent switch circuit breaker

Abstract

The utility model discloses a tripping structure of an intelligent switch circuit breaker, which comprises a shell, a contact arm and an operating handle are arranged on the shell, the contact arm is arranged in the shell in a swinging manner through a rotating shaft, a leakage protector and a short circuit protector are arranged on one side of the contact arm in the shell, and the operating handle is arranged on the other side of the contact arm. The electric leakage protector comprises an electric leakage protection frame, an electric leakage coil, an electric leakage push rod and a reset spring, the electric leakage protection frame is arranged close to the contact arm, the electric leakage push rod is arranged in the electric leakage protection frame in a sliding mode, one end of the electric leakage push rod is arranged close to the contact arm, and the other end of the electric leakage push rod is arranged in the electric leakage protection frame; the electric leakage push rod is sleeved with the reset spring, the electric leakage coil is wrapped outside the electric leakage protection frame, and the output shaft of the short circuit protector abuts against the electric leakage push rod. The structure layout is more reasonable, the whole structure is compact and reliable, and the tripping effect is good.

Description

Technical Field

[0001] The utility model relates to a tripping structure of an intelligent switch circuit breaker. Background Art

[0002] Intelligent switch circuit breaker is a modern power control and protection device. It not only has the basic functions of traditional circuit breakers, such as overload and short circuit protection, but also integrates intelligent monitoring and remote control capabilities. At present, in order to ensure the safety of use, intelligent switch circuit breakers are equipped with remote tripping structures, leakage protection and thermal tripping structures to ensure the safety of the structure. However, the layout of the existing tripping structure is unreasonable, making the structure bloated and affecting the stability of the structure. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a tripping structure of an intelligent switch circuit breaker, which has a more reasonable structural layout, is compact and reliable as a whole, and has a good tripping effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a tripping structure of an intelligent switch circuit breaker, comprising a shell, a contact arm and an operating handle for driving the contact arm to open and close the switch are arranged on the shell, the contact arm is swingably arranged in the shell through a rotating shaft, one end of the contact arm is transmission-connected to the operating handle, and the other end is arranged with a moving contact piece, a leakage protector and a short-circuit protector are arranged on one side of the contact arm in the shell, the leakage protector comprises a leakage protection frame, a leakage coil, a leakage push rod and a reset spring, the leakage protection frame is arranged close to the contact arm, the leakage push rod is slidably arranged in the leakage protection frame, one end of the leakage push rod is arranged close to the contact arm, and the other end is arranged in the leakage protection frame, a limiting member is arranged on the leakage push rod, the reset spring is abutted between the limiting member and the leakage protection frame and sleeved on the leakage push rod, the leakage coil is wrapped outside the leakage protection frame, the output shaft of the short-circuit protector extends into the leakage protector and abuts on the leakage push rod, and the leakage protection frame is provided with a through groove corresponding to the insertion position of the output shaft of the short-circuit protector.

[0005] The beneficial effect of such arrangement is as follows: such arrangement, through such arrangement, in the event of leakage or through remote control, the leakage coil can be energized, and the leakage push rod can be driven to move by the electrically generated magnetic tape, wherein the pushing force of the leakage push rod here is greater than the resistance force of the reset spring, and the leakage push rod compresses the reset spring and resists against the contact arm during the movement, exerting a force on the contact arm to drive the contact arm to swing, thereby separating the moving contact piece from the static contact piece to realize the opening action, and after the leakage coil is powered off, the reset spring restores its deformation and resets the leakage push rod, and the contact resists the contact arm; when a short circuit occurs, the coil on the short-circuit protector is energized, so that the output rod of the short-circuit protector passes through and resists against the leakage push rod, driving the leakage push rod to push the contact arm, thereby completing the instantaneous tripping action under the short-circuit state, and this structure is simple, the structural layout is compact, and it has a good use effect.

[0006] As a further configuration of the utility model, a surrounding edge is provided in the shell corresponding to the position of the leakage protection frame, and the leakage protection frame is clamped in the surrounding edge.

[0007] The beneficial effect of such arrangement is that such arrangement facilitates the installation and positioning of the leakage protection frame, and at the same time, the structure is simple, easy to implement, and has a good use effect.

[0008] As a further configuration of the utility model, a card slot is provided on the surrounding edge, and a card block is provided on the leaked order protection frame, and the card block is locked in the card slot.

[0009] The beneficial effect of such arrangement is that such arrangement further improves the stability of the positioning installation, and at the same time, the structure is simple, the connection is reliable, and the use effect is good.

[0010] As a further configuration of the utility model, a positioning groove is provided in the shell corresponding to the position of the short-circuit protector, and the short-circuit protector is clamped in the positioning groove.

[0011] The beneficial effect of such arrangement is that such arrangement facilitates the positioning of the short-circuit protector, and at the same time, the structure is simple, easy to implement, and has a good use effect.

[0012] As a further configuration of the utility model, a contact plate is provided on the contact arm corresponding to the contact position of the leakage push rod.

[0013] The beneficial effects of such arrangement are: such arrangement increases the contact area, improves the contact stability, ensures the reliability of the structure, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0015] Figure 2It is a front view of the internal structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The implementation of the tripping structure of the intelligent switch circuit breaker of the utility model is as follows Figure 1 and Figure 2 As shown: it includes a housing 1, on which a contact arm 3 and an operating handle 2 for driving the contact arm 3 to open and close are arranged, the contact arm 3 is swingably arranged in the housing 1 through a rotating shaft, one end of the contact arm 3 is transmission-connected to the operating handle 2, and the other end is provided with a moving contact piece 32, and a leakage protector 4 and a short-circuit protector 5 are arranged on one side of the contact arm 3 in the housing 1, the leakage protector 4 includes a leakage protection frame, a leakage coil, a leakage push rod 41 and a reset spring, the leakage protection frame is arranged close to the contact arm 3, and the leakage The electric push rod 41 is slidably set in the leakage protection frame, one end of the leakage push rod 41 is set close to the contact arm 3, and the other end is set in the leakage protection frame. A limiting piece is set on the leakage push rod 41, and the reset spring is set between the limiting piece and the leakage protection frame and sleeved on the leakage push rod 41. The leakage coil is wrapped outside the leakage protection frame, and the output shaft of the short-circuit protector 5 extends into the leakage protector 4 and abuts on the leakage push rod 41. The leakage protection frame is provided with a through groove corresponding to the insertion position of the output shaft of the short-circuit protector 5. The beneficial effect of such arrangement is as follows: such arrangement, through such arrangement, in the event of leakage or through remote control, the leakage coil can be energized, and the leakage push rod 41 can be driven to move by the electric magnetic field. Here, the leakage push rod 41 pushes away a force greater than the resistance force of the reset spring. During the movement, the leakage push rod 41 compresses the reset spring and contacts the contact arm 3, exerting a force on the contact arm 3 to drive the contact arm 3 to swing, thereby separating the moving contact piece 32 from the static contact piece to achieve the opening action. After the leakage coil is powered off, the reset spring restores its deformation and resets the leakage push rod 41, contacting the contact arm 3; when a short circuit occurs, the coil on the short-circuit protector 5 is energized, so that the output rod of the short-circuit protector 5 passes through and contacts the leakage push rod 41, driving the leakage push rod 41 to push the contact arm 3, thereby completing the instantaneous tripping action under the short-circuit state. This structure is simple, the structural layout is compact, and it has a good use effect.

[0017] As a further configuration of the utility model, a surrounding edge 11 is provided in the housing 1 corresponding to the position of the leakage protection frame, and the leakage protection frame is clamped in the surrounding edge 11. The beneficial effect of this configuration is that it is convenient to install and position the leakage protection frame, and the structure is simple, which is convenient to implement and has a good use effect.

[0018] As a further configuration of the utility model, a card slot is provided on the surrounding edge 11, and a card block is provided on the leaking bill protection frame, and the card block is locked in the card slot. The beneficial effect of this configuration is that the stability of the positioning installation is further improved, and the structure is simple, the connection is reliable, and the use effect is good.

[0019] As a further configuration of the utility model, a positioning groove is provided in the housing 1 corresponding to the position of the short-circuit protector 5, and the short-circuit protector 5 is clamped in the positioning groove. The beneficial effect of this configuration is that it is convenient to position the short-circuit protector 5, and the structure is simple, easy to implement, and has a good use effect.

[0020] As a further configuration of the present invention, a contact plate 31 is provided on the contact arm 3 corresponding to the contact position of the leakage push rod 41. The beneficial effect of this configuration is that it increases the contact area, improves the contact stability, ensures the reliability of the structure, and has a good use effect.

[0021] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A tripping structure of an intelligent switch circuit breaker, comprising a housing, a contact arm and an operating handle for driving the contact arm to open and close the switch, the contact arm being swingably arranged in the housing through a rotating shaft, one end of the contact arm being transmission-connected to the operating handle, and a moving contact piece being arranged at the other end, characterized in that: A leakage protector and a short-circuit protector are arranged on one side of the contact arm in the shell, the leakage protector includes a leakage protection frame, a leakage coil, a leakage push rod and a reset spring, the leakage protection frame is arranged close to the contact arm, the leakage push rod is slidably arranged in the leakage protection frame, one end of the leakage push rod is arranged close to the contact arm, and the other end is arranged in the leakage protection frame, a limiting piece is arranged on the leakage push rod, the reset spring is arranged in contact with the limiting piece and the leakage protection frame and is sleeved on the leakage push rod, the leakage coil is wrapped around the outside of the leakage protection frame, the output shaft of the short-circuit protector extends into the leakage protector and is in contact with the leakage push rod, and the leakage protection frame is provided with a through groove corresponding to the insertion position of the output shaft of the short-circuit protector.

2. The tripping structure of the intelligent switch circuit breaker according to claim 1 is characterized in that: A surrounding edge is arranged in the shell at a position corresponding to the leakage protection frame, and the leakage protection frame is clamped in the surrounding edge.

3. The tripping structure of the intelligent switch circuit breaker according to claim 2 is characterized in that: A card slot is arranged on the surrounding edge, a card block is arranged on the leakage protection frame, and the card block is arranged in the card slot.

4. The tripping structure of the intelligent switch circuit breaker according to claim 1, characterized in that: A positioning groove is arranged in the shell corresponding to the position of the short-circuit protector, and the short-circuit protector is clamped in the positioning groove.

5. The tripping structure of the intelligent switch circuit breaker according to claim 1, characterized in that: A contact plate is arranged on the contact arm at a position corresponding to the contact position of the leakage push rod.

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