Low-voltage switch circuit breaker

By using magnetic field to drive the contact strips in the low-voltage switch circuit breaker to disconnect the contacts, the safety problems caused by equipment lag are solved, and the fault is reminded through the alarm mechanism, which improves the safety and reliability of the circuit.

CN119170462APending Publication Date: 2024-12-20NAN TENG ENERGY GRP CO LTD
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Patent Information

Application Number
CN202411209757.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

During the use of the circuit breaker, the operating mechanism is prone to stuttering due to the failure of the equipment to completely disconnect from contact, reducing the safety of the circuit.

Method used

Design a low-voltage switch circuit breaker. By setting a placement seat, coil, reaction spring and abutment strip in the installation box, the magnetic field generated by high current overcomes the reaction spring, so that the abutment strip slides down and drives the contacts to break away from contact. And alert the user of circuit failure through the alarm mechanism.

Benefits of technology

Ensure that the contacts can be completely disconnected from contact during short circuits, improve the safety of the circuit, and remind users of circuit failures through indicator lights, enhancing the reliability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a low-voltage switch circuit breaker, and belongs to the field of circuit breakers, the low-voltage switch circuit breaker comprises a first contact used for being connected with a circuit and a second contact used for being connected with the circuit, the first contact and the second contact are both arranged in a mounting box, the second contact is located below the first contact, the first contact is in contact with the second contact, and a protection mechanism is arranged in the mounting box. The protection mechanism comprises a placement seat arranged in the mounting box, a coil arranged in the placement seat, a storage ring arranged on the placement seat, a spring arranged on the storage ring, a movable ring arranged on the spring and an abutting strip capable of abutting against the second contact, the first contact is arranged on the placement seat, the second contact is located below the placement seat, and the coil is arranged in the placement seat. A sliding hole is formed in the bottom face of the containing base, the containing ring is arranged in the coil, the spring is arranged in the coil, the movable ring is arranged in the coil, and the abutting strip is arranged on the movable ring and arranged in the sliding hole in a sliding mode. The application has the effect of improving the safety of the circuit.
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Description

Technical Field

[0001] The invention relates to the field of circuit breakers, and in particular to a low-voltage switch circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. When a short circuit occurs, the magnetic field generated by the large current (generally 10 to 12 times) overcomes the reaction spring, the release pulls the operating mechanism to operate, and the switch trips instantaneously. However, in the actual use of circuit breakers, since the equipment has not been overhauled and maintained for a long time, the operating mechanism is very likely to get stuck, causing the two contacts to not completely disengage, thereby reducing the safety of the circuit.

[0003] In view of the above-mentioned related technologies, it is urgent to design and develop a low-voltage switch circuit breaker so that when the operating mechanism is stuck, the two contacts can still be disengaged, thereby improving the safety of the circuit. Summary of the invention

[0004] In order to improve the safety of the circuit, the present application provides a low-voltage switch circuit breaker.

[0005] A low-voltage switch circuit breaker provided in this application adopts the following technical solution: A low-voltage switch circuit breaker comprises a contact point 1 for connecting to a circuit and a contact point 2 for connecting to a circuit, the contact point 1 and the contact point 2 are both arranged in an installation box, the contact point 2 is located below the contact point 1, the contact point 1 is in contact with the contact point 2, a protective mechanism is arranged in the installation box, the protective mechanism comprises a placement seat arranged in the installation box, a coil arranged in the placement seat, a placement ring arranged on the placement seat, a reaction spring arranged on the placement ring, a movable ring arranged on the reaction spring, and an abutment bar that can abut against the contact point 2, the contact point 1 is arranged on the placement seat, the contact point 2 is located below the placement seat, a sliding hole is opened on the bottom surface of the placement seat, the placement ring is arranged in the coil, the reaction spring is arranged in the coil, the movable ring is arranged in the coil, the abutment bar is arranged on the movable ring, and the abutment bar is slidably arranged in the sliding hole.

[0006] By adopting the above technical scheme, contact one and contact two are both arranged in the installation box, contact two is located below contact one, contact one is in contact with contact two, the placement seat is arranged in the installation box, contact two is located below the placement seat, a sliding hole is opened on the bottom surface of the placement seat, the coil is arranged in the placement seat, the placement ring is arranged on the placement seat, the placement ring is arranged in the coil, the reaction spring is arranged on the placement ring, the reaction spring is arranged in the coil, the movable ring is arranged on the reaction spring, the movable ring is arranged in the coil, the abutment bar is arranged on the movable ring, the abutment bar is slidably arranged in the sliding hole, the abutment bar abuts against contact two, when short circuit occurs, if the operating mechanism is very likely to get stuck, so that the two contacts are not completely out of contact, the magnetic field generated by the large current enables the movable ring to overcome the reaction spring, the movable ring drives the abutment bar to slide down, and the abutment bar drives contact two away from contact one, so that contact one is out of contact with contact two, thereby improving circuit safety.

[0007] Preferably, an alarm mechanism is provided on the installation box, and the alarm mechanism includes a mounting plate arranged in the installation box, a mounting seat arranged on the mounting plate, a touch switch arranged in the mounting seat, an abutment block that can abut the touch switch, an abutment rod slidably arranged in the mounting seat, and an indicator light arranged on the installation box, a sliding groove is opened on the top surface of the mounting seat, the abutment rod is horizontally slidably arranged in the sliding groove, the top surface of the abutment rod abuts against the contact 2, the abutment block is arranged on the abutment bar, the abutment block is slidably arranged in the sliding groove, the touch switch is arranged in the sliding groove, and the touch switch and the indicator light transmit signals through a data transmission module.

[0008] By adopting the above technical scheme, the indicator light is arranged on the installation box, the installation plate is arranged in the installation box, the installation seat is arranged on the installation plate, the top surface of the installation seat is provided with a sliding groove, the abutment rod is horizontally slidably arranged in the sliding groove, the top surface of the abutment rod abuts against the contact 2, the abutment block is arranged on the abutment rod, the abutment block is slidably arranged in the sliding groove, the touch switch is arranged in the sliding groove, the touch switch and the indicator light transmit signals through the data transmission module, in the process of the abutment rod driving the contact 2 to move downward, the abutment rod is squeezed by the contact 2 and slides along the sliding groove, the abutment rod drives the abutment block to slide toward the touch switch, the abutment block abuts against the touch switch, and the indicator light lights up, which is convenient for reminding the user that the circuit has a fault.

[0009] Preferably, a limiting groove 1 is provided on the side wall of the sliding groove, a limiting block 1 is provided on the abutting strip, and the limiting block 1 is slidably disposed in the limiting groove 1.

[0010] By adopting the above technical solution, a limiting groove is opened on the side wall of the sliding groove, a limiting block is set on the abutment strip, and the limiting block is slidably set in the limiting groove. The limiting block prevents the abutment strip from leaving the sliding groove, thereby enhancing the stability of the connection between the abutment strip and the mounting seat.

[0011] Preferably, the alarm mechanism includes a spring 1, which is arranged in the limiting groove 1, one end of the spring 1 abuts against the side wall of the limiting groove 1 close to the touch switch, and the other end of the spring 1 abuts against the side of the limiting block 1 close to the touch switch.

[0012] By adopting the above technical solution, spring 1 is arranged in limit groove 1, one end of spring 1 abuts against the side wall of limit groove 1 close to the touch switch, and the other end of spring 1 abuts against the side of limit block 1 close to the touch switch. Spring 1 gives elastic force to limit block 1 away from touch switch 1, thereby reducing the possibility of accidental sliding of the abutment bar and misconducting the touch switch.

[0013] Preferably, the installation box is provided with an installation mechanism, and the installation mechanism includes a mounting strip that can be installed on a wall and a slider slidably set on the mounting strip, a sliding groove is provided on the side of the mounting strip, and a limiting groove 2 is provided on the side wall of the sliding groove, the slider is arranged on the installation box, the slider is slidably set in the sliding groove, a limiting block 2 is provided on the slider, and the limiting block 2 is slidably set in the limiting groove 2.

[0014] By adopting the above technical solution, the mounting strip is installed on the wall, a slide groove is provided on the side of the mounting strip, a limiting groove 2 is provided on the side wall of the slide groove, a slider is arranged on the mounting box, the slider is slidably arranged in the slide groove, a limiting block 2 is arranged on the slider, the limiting block 2 is slidably arranged in the limiting groove 2, when the mounting box needs to be installed on the wall, the slider is slid into the slide groove, so that the limiting block 2 slides into the limiting groove 2, and the limiting block 2 prevents the slider from escaping from the slide groove, thereby enhancing the stability of the connection between the mounting box and the mounting strip.

[0015] Preferably, a snap-in groove is provided on the top surface of the mounting strip, the snap-in groove is communicated with the second limiting groove, a mounting groove is provided on the side surface of the second limiting block, and the mounting mechanism includes an insertion strip that can be inserted into the snap-in groove, and the insertion strip is slidably set in the mounting groove.

[0016] By adopting the above technical solution, a snap-in groove is opened on the top surface of the mounting strip, the snap-in groove is connected with the second limiting groove, a mounting groove is opened on the side of the second limiting block, the insertion strip is slidably set in the mounting groove, and the insertion strip is inserted in the snap-in groove, thereby improving the stability of the connection between the mounting box and the mounting strip.

[0017] Preferably, a limiting groove three is provided on the side wall of the installation groove, a limiting block three is provided on the side surface of the insertion strip, and the limiting block three is slidably disposed in the limiting groove three.

[0018] By adopting the above technical solution, a limiting groove three is opened on the side wall of the installation groove, a limiting block three is arranged on the side of the insertion strip, and the limiting block three is slidably arranged in the limiting groove three. The limiting block three prevents the insertion strip from leaving the installation groove, thereby improving the stability of the connection between the insertion strip and the slider.

[0019] Preferably, the mounting mechanism comprises a second spring arranged in the slide groove, one end of the second spring abuts against the bottom wall of the slide groove, and the other end of the second spring abuts against the bottom surface of the limit block three.

[0020] By adopting the above technical solution, spring 2 is arranged in the slide groove, one end of spring 2 abuts against the bottom wall of the slide groove, and the other end of spring 2 abuts against the bottom surface of limit block 3. Spring 2 gives elastic force to limit block 2 to approach the plug-in groove, and limit block 2 drives the insertion strip to be close to the inner wall of the clamping groove, thereby further improving the stability of the connection between the installation box and the installation strip.

[0021] Preferably, the mounting mechanism includes an unlocking component, which includes a storage seat arranged on the top surface of the mounting strip and an abutment screw that can abut against the insertion strip, the abutment screw is threadedly sleeved in the storage seat, and the abutment screw is slidably arranged in the clamping groove.

[0022] By adopting the above technical solution, the storage seat is arranged on the top surface of the installation strip, the abutment screw is threadedly sleeved in the storage seat, the abutment screw is slidably arranged in the clamping groove, and the abutment screw can abut against the insertion strip. When it is necessary to contact the clamping state of the installation box and the installation strip, the abutment screw is rotated to make the abutment screw slide down and abut against the insertion strip, so that the insertion strip is separated from the insertion strip, the clamping state of the slider and the installation strip is released, and the clamping state of the installation box and the installation strip is released.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Contact 1 and contact 2 are both arranged in the installation box, contact 2 is located below contact 1, contact 1 is in contact with contact 2, the placement seat is arranged in the installation box, contact 2 is located below the placement seat, a sliding hole is provided on the bottom surface of the placement seat, the coil is arranged in the placement seat, the placement ring is arranged on the placement seat, the placement ring is arranged in the coil, the reaction spring is arranged on the placement ring, the reaction spring is arranged in the coil, the movable ring is arranged on the reaction spring, the movable ring is arranged in the coil, the abutment bar is arranged on the movable ring, the abutment bar is slidably arranged in the sliding hole, the abutment bar abuts against contact 2, when short-circuited, if the operating mechanism is prone to jamming, so that the two contacts are not completely out of contact, the magnetic field generated by the large current makes the movable ring overcome the reaction spring, the movable ring drives the abutment bar to slide down, the abutment bar drives contact 2 away from contact 1, so that contact 1 is out of contact with contact 2, and the circuit safety is improved; 2. The indicator light is arranged on the installation box, the installation plate is arranged in the installation box, the installation seat is arranged on the installation plate, a sliding groove is provided on the top surface of the installation seat, the abutment rod is arranged in the sliding groove for horizontal sliding, the top surface of the abutment rod abuts against the second contact, the abutment block is arranged on the abutment rod, the abutment block is slidably arranged in the sliding groove, the touch switch is arranged in the sliding groove, the touch switch and the indicator light transmit signals through the data transmission module, in the process of the abutment rod driving the second contact to move downward, the abutment rod is squeezed by the second contact to slide along the sliding groove, the abutment rod drives the abutment block to slide toward the touch switch, the abutment block abuts against the touch switch, and the indicator light lights up, which is convenient for reminding the user that the circuit has a fault; 3. Spring 1 is arranged in limit groove 1, one end of spring 1 abuts against the side wall of limit groove 1 close to the touch switch, and the other end of spring 1 abuts against the side of limit block 1 close to the touch switch. Spring 1 gives elastic force to limit block 1 away from touch switch 1, reducing the possibility of accidental sliding of the abutment bar and misconduct contacting the touch switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the low-voltage switch circuit breaker in the embodiment of the present application.

[0025] Figure 2 It is a cross-sectional view of the installation box in the embodiment of the present application.

[0026] Figure 3 It is a cross-sectional view of the mounting strip in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the connection structure between the storage ring and the movable ring in the embodiment of the present application.

[0028] Figure 5 It is a cross-sectional view of the mounting plate in the embodiment of the present application.

[0029] Description of reference numerals: 1. Contact 1; 2. Contact 2; 3. Mounting box; 4. Protection mechanism; 41. Placement seat; 42. Coil; 43. Placement ring; 44. Reaction spring; 45. Movable ring; 46. Abutment bar; 5. Alarm mechanism; 51. Mounting plate; 52. Mounting seat; 521. Sliding groove; 522. Limiting groove 1; 53. Touch switch; 54. Abutment block; 55. Abutment rod; 551. Limiting block 1; 56, indicator light; 57, spring 1; 6, installation mechanism; 61, installation strip; 611, slide slot; 612, limit slot 2; 613, snap-in slot; 62, slide block; 621, limit block 2; 6211, installation slot; 6212, limit slot 3; 63, insert strip; 631, limit block 3; 64, spring 2; 65, unlocking assembly; 651, storage seat; 652, abutment screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiment of the present application discloses a low voltage switch circuit breaker. Figure 1 and Figure 2 As shown, the low-voltage switch circuit breaker includes a contact 1, a contact 2, a mounting box 3, a protection mechanism 4, an alarm mechanism 5 and a mounting mechanism 6. The contact 1 and the contact 2 are both arranged in the mounting box 3. The contact 1 is connected to one end of the circuit, and the contact 2 is connected to the other end of the circuit. The contact 2 is located below the contact 1, and the contact 1 is in contact with the contact 2.

[0032] Reference Figure 1 and Figure 3 As shown, the mounting mechanism 6 includes a mounting bar 61, a slider 62, an insert bar 63, a second spring 64 and an unlocking assembly 65. The mounting bar 61 is arranged on the wall, and the length direction of the mounting bar 61 is perpendicular to the ground. A slide groove 611 is provided on the side of the mounting bar 61, and a second limiting groove 612 is provided on the side wall of the slide groove 611. The slider 62 is fixed on the side of the mounting box 3 close to the mounting bar 61.

[0033] Reference Figure 1 and Figure 3 As shown, the slider 62 is horizontally slidably arranged in the slide groove 611, and a limiting block 621 is arranged on the side of the slider 62 away from the installation box 3. The limiting block 621 is slidably arranged in the limiting groove 612. The length direction of the limiting block 621 is the same as the length direction of the installation strip 61. When the installation box 3 needs to be installed on the wall, the slider 62 is slid into the slide groove 611, so that the limiting block 621 slides into the limiting groove 612. The limiting block 621 prevents the slider 62 from disengaging from the slide groove 611, thereby enhancing the stability of the connection between the installation box 3 and the installation strip 61.

[0034] Reference Figure 1and Figure 3 As shown, a clamping groove 613 is provided on the top surface of the mounting strip 61, and the length direction of the clamping groove 613 is the same as the length direction of the mounting strip 61, and the clamping groove 613 is connected to the second limiting groove 612, and a mounting groove 6211 is provided on the top surface of the second limiting block 621, and the length direction of the mounting groove 6211 is the same as the length direction of the second limiting block 621, and a third limiting groove 6212 is provided on the side wall of the mounting groove 6211, and the length direction of the third limiting groove 6212 is the same as the length direction of the mounting groove 6211. Reference Figure 1 and Figure 3 As shown, the inserting strip 63 is vertically slidably disposed in the mounting groove 6211 , and the length direction of the inserting strip 63 is the same as the length direction of the mounting strip 61 . The inserting strip 63 can be inserted into the clamping groove 613 to improve the stability of the connection between the mounting box 3 and the mounting strip 61 .

[0035] Reference Figure 1 and Figure 3 As shown, a limiting block 3 631 is provided on the bottom surface of the inserting strip 63. The limiting block 3 631 vertically slides in the limiting groove 3 6212. The limiting block 3 631 prevents the inserting strip 63 from being separated from the mounting groove 6211, thereby improving the stability of the connection between the inserting strip 63 and the slider 62.

[0036] Reference Figure 1 and Figure 3 As shown, spring 2 64 is arranged in the slide groove 611, one end of spring 2 64 abuts against the bottom wall of the slide groove 611, and the other end of spring 2 64 abuts against the bottom surface of limit block 3 631. Spring 2 64 gives elastic force to limit block 2 621 to approach the plug-in slot, and limit block 2 621 drives the insertion strip 63 to be tightly attached to the inner wall of the clamping slot 613, further improving the stability of the connection between the installation box 3 and the installation strip 61.

[0037] Reference Figure 1 and Figure 3 As shown, the unlocking assembly 65 includes a storage seat 651 and an abutment screw 652. The storage seat 651 is arranged on the top surface of the mounting strip 61. The storage seat 651 is located directly above the snap-in groove 613. The abutment screw 652 is threadedly sleeved in the storage seat 651. The abutment screw 652 is slidably arranged in the snap-in groove 613.

[0038] Reference Figure 1 and Figure 3 As shown, when it is necessary to contact the clamping state of the installation box 3 and the installation strip 61, rotate the abutment screw 652 so that the abutment screw 652 slides down and abuts against the insertion strip 63, so that the insertion strip 63 is separated from the insertion strip, and the clamping state of the slider 62 and the installation strip 61 is released, thereby releasing the clamping state of the installation box 3 and the installation strip 61.

[0039] Reference Figure 2 and Figure 4 As shown, the protection mechanism 4 includes a placement seat 41, a coil 42, a storage ring 43, a reaction spring 44, a movable ring 45 and abutment strip 46. The placement seat 41 is horizontally fixed in the installation box 3, the storage ring 43 is horizontally arranged on the placement seat 41, the reaction spring 44 is arranged on the storage ring 43, and the movable ring 45 is arranged on the reaction spring 44. The axial centerline direction of the movable ring 45 coincides with the axial centerline direction of the storage ring 43.

[0040] Reference Figure 2 and Figure 4 As shown, the coil 42 is arranged on the placement seat 41, the placement ring 43 is arranged in the coil 42, the spring is arranged in the coil 42, the movable ring 45 is arranged in the coil 42, a sliding hole is opened on the bottom surface of the placement seat 41, the abutment bar 46 is arranged on the movable ring 45, the abutment bar 46 is slidably arranged in the sliding hole, and the abutment bar 46 is arranged in the coil 42.

[0041] Reference Figure 2 and Figure 4 As shown, when a short circuit occurs, if the operating mechanism is easily stuck, so that the two contacts are not completely out of contact, the magnetic field generated by the large current causes the movable ring 45 to overcome the reaction spring 44, and the movable ring drives the abutment bar 46 to slide down, and the abutment bar 46 drives the contact 2 2 away from the contact 1 1, so that the contact 1 and the contact 2 2 are out of contact, thereby improving the circuit safety.

[0042] Reference Figure 2 and Figure 5 As shown, the alarm mechanism 5 includes a mounting plate 51, a mounting seat 52, a touch switch 53, an abutment block 54, an abutment rod 55, an indicator light 56 ​​and a spring 57. The mounting plate 51 is horizontally fixed in the mounting box 3, and the length direction of the mounting plate 51 is parallel to the ground. The mounting seat 52 is horizontally fixed on the top surface of the mounting plate 51, and the length direction of the mounting seat 52 is the same as the length direction of the mounting plate 51.

[0043] Reference Figure 2 and Figure 5 As shown, a sliding groove 521 is provided on the top surface of the mounting seat 52, and the length direction of the sliding groove 521 is the same as the length direction of the mounting seat 52. A limiting groove 522 is provided on the side wall of the sliding groove 521. The abutment rod 55 is horizontally slidably arranged in the sliding groove 521, and the top surface of the abutment rod 55 abuts against the bottom surface of the contact 2 2, and the length direction of the abutment rod 55 is perpendicular to the ground.

[0044] Reference Figure 2 and Figure 5 As shown, a limit block 551 is provided on the bottom surface of the abutting rod 55 , and the limit block 551 is slidably disposed in a limit groove 522 , and the limit block 551 prevents the abutting rod 55 from escaping from the sliding groove 521 , thereby enhancing the stability of the connection between the abutting rod 55 and the mounting seat 52 .

[0045] Reference Figure 2 and Figure 5 As shown, the touch switch 53 is arranged in the sliding groove 521, the abutment block 54 is arranged on the side of the abutment rod 55 close to the touch switch 53, the abutment block 54 is slidably arranged in the sliding groove 521, and the touch switch 53 and the indicator light 56 ​​transmit signals through the data transmission module.

[0046] Reference Figure 2 and Figure 5 As shown, in the process that the abutment rod 55 drives the contact 2 2 to move downward, the abutment rod 55 is squeezed by the contact 2 2 and slides along the sliding groove 521, and the abutment rod 55 drives the abutment block 54 to slide toward the touch switch 53, and the abutment block 54 abuts against the touch switch 53, and the indicator light 56 ​​lights up, which is convenient for reminding the user that a circuit fault has occurred.

[0047] Reference Figure 2 and Figure 5 As shown, a spring 57 is disposed in a limiting groove 522, one end of the spring 57 abuts against the side wall of the limiting groove 522 close to the touch switch 53, and the other end of the spring 57 abuts against the side of a limiting block 551 close to the touch switch 53. The spring 57 gives an elastic force to the limiting block 551 away from the touch switch 53, thereby reducing the possibility of the abutment rod 55 accidentally sliding and contacting the touch switch 53.

[0048] The implementation principle of a low-voltage switch circuit breaker in the embodiment of the present application is: During a short circuit, if the operating mechanism is easily stuck, so that the two contacts are not completely out of contact, the magnetic field generated by the large current causes the movable ring 45 to overcome the reaction spring 44, and the movable ring drives the abutment bar 46 to slide down, and the abutment bar 46 drives the contact 2 2 away from the contact 1 1, so that the contact 1 and the contact 2 2 are out of contact, thereby improving the circuit safety.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low voltage switch circuit breaker, comprising a contact point 1 (1) for connecting to a circuit and a contact point 2 (2) for connecting to a circuit, Features: The contact point 1 (1) and the contact point 2 (2) are both arranged in the installation box (3), the contact point 2 (2) is located below the contact point 1 (1), and the contact point 1 (1) is in contact with the contact point 2 (2). A protection mechanism (4) is arranged in the installation box (3), and the protection mechanism (4) comprises a placement seat (41) arranged in the installation box (3), a coil (42) arranged in the placement seat (41), a placement ring (43) arranged on the placement seat (41), a reaction spring (44) arranged on the reaction spring (44), and a coil (42) arranged on the placement seat (41). The invention relates to a movable ring (45) and an abutment strip (46) capable of abutting against the contact point 2 (2), wherein the contact point 1 (1) is arranged on the placement seat (41), the contact point 2 (2) is located below the placement seat (41), a sliding hole is provided on the bottom surface of the placement seat (41), the placement ring (43) is arranged in the coil (42), the reaction spring (44) is arranged in the coil (42), the movable ring (45) is arranged in the coil (42), the abutment strip (46) is arranged on the movable ring (45), and the abutment strip (46) is slidably arranged in the sliding hole.

2. A low voltage switch circuit breaker according to claim 1, Features: The installation box (3) is provided with an alarm mechanism (5), the alarm mechanism (5) comprising a mounting plate (51) arranged in the installation box (3), a mounting seat (52) arranged on the mounting plate (51), a touch switch (53) arranged in the mounting seat (52), an abutment block (54) capable of abutting against the touch switch (53), an abutment rod (55) slidably arranged in the mounting seat (52), and an indicator light (56) arranged on the installation box (3), wherein the mounting seat (52) A sliding groove (521) is provided on the top surface of the contact rod (55), the contact rod (55) is horizontally slidably arranged in the sliding groove (521), the top surface of the contact rod (55) is in contact with the second contact (2), the contact block (54) is arranged on the contact bar (46), the contact block (54) is slidably arranged in the sliding groove (521), the touch switch (53) is arranged in the sliding groove (521), and the touch switch (53) and the indicator light (56) transmit signals through the data transmission module.

3. A low voltage switch circuit breaker according to claim 2, Features: A limiting groove (522) is provided on the side wall of the sliding groove (521), and a limiting block (551) is provided on the abutting strip (46), wherein the limiting block (551) is slidably disposed in the limiting groove (522).

4. A low voltage switch circuit breaker according to claim 3, Features: The alarm mechanism (5) comprises a spring (57), wherein the spring (57) is arranged in the limiting groove (522), one end of the spring (57) abuts against the side wall of the limiting groove (522) close to the touch switch (53), and the other end of the spring (57) abuts against the side surface of the limiting block (551) close to the touch switch (53).

5. A low voltage switch circuit breaker according to claim 1, Features: The installation box (3) is provided with an installation mechanism (6), the installation mechanism (6) comprising an installation strip (61) that can be installed on a wall and a slider (62) slidably arranged on the installation strip (61), a slide groove (611) is provided on the side surface of the installation strip (61), a second limiting groove (612) is provided on the side wall of the slide groove (611), the slider (62) is arranged on the installation box (3), the slider (62) is slidably arranged in the slide groove (611), a second limiting block (621) is provided on the slider (62), and the second limiting block (621) is slidably arranged in the second limiting groove (612).

6. A low voltage switch circuit breaker according to claim 5, Features: A snap-fit ​​groove (613) is provided on the top surface of the mounting strip (61), the snap-fit ​​groove (613) is communicated with the second limiting groove (612), a mounting groove (6211) is provided on the side surface of the second limiting block (621), and the mounting mechanism (6) comprises an inserting strip (63) which can be inserted into the snap-fit ​​groove (613), and the inserting strip (63) is slidably arranged in the mounting groove (6211).

7. A low voltage switch circuit breaker according to claim 6, Features: A third limiting groove (6212) is provided on the side wall of the installation groove (6211), and a third limiting block (631) is provided on the side surface of the insertion strip (63), and the third limiting block (631) is slidably disposed in the third limiting groove (6212).

8. A low voltage switch circuit breaker according to claim 7, Features: The mounting mechanism (6) comprises a second spring (64) arranged in the slide groove (611), one end of the second spring (64) abuts against the bottom wall of the slide groove (611), and the other end of the second spring (64) abuts against the bottom surface of the third limit block (631).

9. A low voltage switch circuit breaker according to claim 6, Features: The mounting mechanism (6) comprises an unlocking assembly (65), wherein the unlocking assembly (65) comprises a storage seat (651) arranged on the top surface of the mounting strip (61) and an abutting screw (652) capable of abutting against the inserting strip (63), wherein the abutting screw (652) is threadedly sleeved in the storage seat (651), and the abutting screw (652) is slidably arranged in the clamping groove (613).