Interphase insulation structure of circuit breaker
By designing a limit fixing structure in the circuit breaker to fix the phase spacer on the base, the phase short circuit and breakdown problems of the miniaturized circuit breaker during high voltage testing are solved, and the structure stability and disassembly and assembly convenience are improved, and the vibration test requirements are met.
Patent Information
- Application Number
- CN202421290034.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During high voltage testing, existing miniaturized circuit breakers have arcs due to the inability to increase phase distance, resulting in phase short circuits and breakdowns. At the same time, the structure is complex, difficult to disassemble and assembly, and easy to fall off, which cannot meet the vibration test requirements.
A phase-insulating structure of a circuit breaker is designed, including a base, a phase spacer plate and a line line. The phase-separator plate is fixed to the base through a limit fixing structure (such as a limit projection and a second limit projection) to ensure its stability and safety.
Effectively prevent the phase separation plate from falling off, avoid breakdown short circuit between phases or stages, ensure the safety and stability of the circuit breaker, simplify the disassembly and assembly process, and pass the vibration test of related products.
Smart Images
Figure CN222883459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to an interphase insulation structure of a circuit breaker. Background Art
[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and can close, carry and interrupt current under abnormal circuit conditions within a specified time.
[0003] The existing miniaturized circuit breakers cannot increase their interphase distance due to size and structure limitations, especially between the wire rows inside the circuit breaker. When the product is tested at high voltage, arcs may be generated between different phases on the circuit breaker body, causing interphase short circuits and interphase breakdown inside the circuit breaker body. In addition, after the arc is extinguished by the arc extinguishing device, some arcs may remain when the circuit breaker body is disconnected, which may also cause interphase short circuits when discharged through the exhaust port of the arc extinguishing cover.
[0004] Meanwhile, the miniaturized circuit breakers in the prior art have complex structures, are difficult to assemble and disassemble, and are easy to fall off, and cannot meet the vibration test requirements of related products. Utility Model Content
[0005] The purpose of the utility model is to provide a phase-to-phase insulation structure of a circuit breaker in view of the defects existing in the prior art, so as to effectively prevent the phase partition from falling off on the base, avoid breakdown short circuit between phases or levels of the product, ensure the safety and stability of the circuit breaker, avoid mutual interference caused by equipment failure, the whole structure is easy to disassemble and assemble, not easy to fall off, and can achieve the effect required by the vibration test of related products.
[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a phase-to-phase insulation structure of a circuit breaker, comprising a base, a phase partition, and an outgoing line row: the outgoing line row is arranged on the base; the phase partition is inserted into a slot of the base and fixed by a limiting fixing structure.
[0007] Furthermore, the limiting fixing structure is a limiting protrusion.
[0008] Furthermore, the limiting protrusion is arranged at the base through hole in the middle of the slot.
[0009] Furthermore, the position limiting and fixing structure also includes a second position limiting protrusion.
[0010] Furthermore, the second limiting protrusion is arranged at the top of the base groove at the top of the base.
[0011] Furthermore, a T-shaped protrusion is provided on the top of the phase partition to cooperate with the base groove, and the T-shaped protrusion is engaged with the base groove and the second limiting protrusion.
[0012] Furthermore, a second T-shaped protrusion is provided in the middle of the phase partition to cooperate with the base through hole, and the second T-shaped protrusion is engaged with the base through hole and the limiting protrusion.
[0013] Furthermore, the phase partition is provided with a square mounting end which cooperates with the slot.
[0014] Furthermore, a reinforcing rib is arranged in the middle of the phase partition, and a bottom reinforcing rib is arranged at the bottom.
[0015] Furthermore, a plurality of slots are provided.
[0016] The structure includes a base, a phase partition, and an outlet line row: the outlet line row is arranged on the base; the phase partition is inserted into a slot of the base and fixed by a limiting fixing structure, so that the phase partition can be effectively prevented from falling off on the base, and a breakdown short circuit between phases or levels of the product can be avoided, so as to ensure the safety and stability of the circuit breaker and avoid mutual interference due to equipment failure. The whole structure is easy to disassemble and assemble, not easy to fall off, and can achieve the effect of meeting the requirements of vibration test of relevant products. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a schematic diagram of the interphase insulation structure of a circuit breaker of the utility model;
[0019] Figure 2 This is a schematic diagram of the interphase insulation structure of a circuit breaker of the utility model;
[0020] Figure 3 This is a schematic diagram of the interphase insulation structure base structure of a circuit breaker of the utility model;
[0021] Figure 4 The utility model is a schematic diagram of a phase partition structure of a phase insulation structure of a circuit breaker.
[0022] Reference numerals:
[0023] Base 1, slot 1-1, base through hole 1-2, limiting protrusion 1-3, base groove 1-4, second limiting protrusion 1-5, phase partition 2, T-shaped protrusion 2-1, second T-shaped protrusion 2-2, square mounting end 2-3, reinforcing rib 2-4, bottom reinforcing rib 2-5, outlet row 3. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0026] A phase-to-phase insulation structure of a circuit breaker, such as Figure 1 , 2 As shown, it includes a base 1, a phase partition 2, and an outgoing line row 3: the outgoing line row 3 is arranged on the base 1; the phase partition 2 is inserted into the slot 1-1 of the base 1 and fixed by a limiting fixing structure.
[0027] Specifically, the structure includes a base 1, a phase partition 2, and an outgoing line row 3: the outgoing line row 3 is arranged on the base 1; the phase partition 2 is inserted into the slot 1-1 of the base 1, and is fixed by a limiting fixing structure, which effectively prevents the phase partition 2 from falling off the base 1, avoids product phase-to-phase or level-to-level breakdown short circuit, thereby ensuring the safety and stability of the circuit breaker and avoiding mutual interference due to equipment failure.
[0028] As a preferred embodiment of the above, Figure 3 As shown, the limiting fixing structure is a limiting protrusion 1-3.
[0029] As a preferred embodiment of the above, Figure 3 As shown, the limiting protrusion 1-3 is arranged at the base through hole 1-2 in the middle of the slot 1-1.
[0030] Specifically, the limiting and fixing structure is a limiting protrusion 1-3, and the limiting protrusion 1-3 is arranged at the base through hole 1-2 in the middle of the slot 1-1, so as to limit and fix the phase partition 2 through the limiting protrusion 1-3 and the slot 1-1, so that the phase partition 2 can be reliably fixed, and the whole structure is easy to disassemble and assemble, which improves the reliability of the installation of the phase partition 2, is not easy to fall off, and can meet the requirements of the vibration test of related products.
[0031] As a preferred embodiment of the above, Figure 1 As shown, the limiting and fixing structure also includes a second limiting protrusion 1-5.
[0032] As a preferred embodiment of the above, Figure 3 As shown, the second limiting protrusion 1-5 is arranged at the top of the base groove 1-4 at the top of the base 1.
[0033] Specifically, the limiting and fixing structure also includes a second limiting protrusion 1-5, and the second limiting protrusion 1-5 is arranged at the top of the base groove 1-4 at the top of the base 1, so as to further limit and fix the phase partition 2, thereby further improving the installation reliability of the phase partition 2, making it not easy to fall off, and making the vibration test results of related products more accurate.
[0034] As a preferred embodiment of the above, Figure 4 As shown, a T-shaped protrusion 2-1 is provided on the top of the phase partition 2 to cooperate with the base groove 1-4, and the T-shaped protrusion 2-1 is engaged with the base groove 1-4 and the second limiting protrusion 1-5.
[0035] As a preferred embodiment of the above, Figure 4 As shown, a second T-shaped protrusion 2-2 is provided in the middle of the phase partition 2 to cooperate with the base through hole 1-2, and the second T-shaped protrusion 2-2 is engaged with the base through hole 1-2 and the limiting protrusion 1-3.
[0036] Specifically, a T-shaped protrusion 2-1 is provided on the top of the phase partition 2 to cooperate with the base groove 1-4, the T-shaped protrusion 2-1 cooperates with the base groove 1-4 and the second limiting protrusion 1-5, and a second T-shaped protrusion 2-2 is provided in the middle of the phase partition 2 to cooperate with the base through hole 1-2, and the second T-shaped protrusion 2-2 cooperates with the base through hole 1-2 and the limiting protrusion 1-3. The reliability of the installation of the phase partition 2 is further improved, it is not easy to fall off, and the vibration test results of related products can be more accurate.
[0037] As a preferred embodiment of the above, Figure 4As shown, the phase partition 2 is provided with a square mounting end 2-3 which cooperates with the slot 1-1.
[0038] Specifically, the phase partition 2 is provided with a square mounting end 2-3 which cooperates with the slot 1-1, thereby further enhancing the fixing ability of the slot 1-1.
[0039] As a preferred embodiment of the above, Figure 4 As shown, the phase partition plate 2 is provided with reinforcing ribs 2-4 in the middle and bottom reinforcing ribs 2-5 at the bottom.
[0040] Specifically, the strength of the phase partition 2 is further enhanced by providing a reinforcing rib 2 - 4 in the middle of the phase partition 2 and providing a bottom reinforcing rib 2 - 5 at the bottom.
[0041] As a preferred embodiment of the above, Figure 1 As shown, the slot 1-1 is provided in plurality.
[0042] Specifically, a plurality of slots 1-1 are provided to adapt to more usage scenarios.
[0043] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A phase-to-phase insulation structure of a circuit breaker, characterized in that: It includes a base (1), a phase partition (2), and a lead bar (3): The outlet line row (3) is arranged on the base (1); The phase partition (2) is inserted into the slot (1-1) of the base (1) and fixed by a limiting fixing structure; The phase partition (2) is provided with a square mounting end (2-3) which matches with the slot (1-1); The phase partition plate (2) is provided with a reinforcing rib (2-4) in the middle, and a bottom reinforcing rib (2-5) at the bottom.
2. The phase-to-phase insulation structure of the circuit breaker according to claim 1, characterized in that: The limiting fixing structure is a limiting protrusion (1-3).
3. The phase-to-phase insulation structure of the circuit breaker according to claim 2, characterized in that: The limiting protrusion (1-3) is arranged at the base through hole (1-2) in the middle of the slot (1-1).
4. The phase-to-phase insulation structure of the circuit breaker according to claim 3, characterized in that: The position limiting and fixing structure also includes a second position limiting protrusion (1-5).
5. The phase-to-phase insulation structure of the circuit breaker according to claim 4, characterized in that: The second limiting protrusion (1-5) is arranged at the top of the base groove (1-4) at the top of the base (1).
6. The phase-to-phase insulation structure of the circuit breaker according to claim 5, characterized in that: A T-shaped protrusion (2-1) is provided on the top of the phase partition (2) and matches with the base groove (1-4); the T-shaped protrusion (2-1) matches and snaps with the base groove (1-4) and the second limiting protrusion (1-5).
7. The phase-to-phase insulation structure of the circuit breaker according to claim 6, characterized in that: A second T-shaped protrusion (2-2) is provided in the middle of the phase partition (2) and matches with the base through hole (1-2); the second T-shaped protrusion (2-2) matches and snaps with the base through hole (1-2) and the limiting protrusion (1-3).
8. The phase-to-phase insulation structure of a circuit breaker according to claim 1, characterized in that: A plurality of slots (1-1) are provided.