Multi-station circuit breaker
By installing fireproof components and heat dissipation structures on the outside of the circuit breaker, the fire problem caused by arc extinguishing device failure is solved, achieving fireproof and heat dissipation effects of the circuit breaker and ensuring its stability and safety during failure.
Patent Information
- Application Number
- CN202422894683.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In the event of a failure in the arc extinguishing device of an existing multi-position circuit breaker, the electric arc may not be extinguished in time, leading to the combustion of internal materials and the ejection of high-temperature substances, which could cause a fire.
Fireproof components are installed on the outside of the circuit breaker, including a fireproof shell and a ceramicized silicone rubber fireproof layer. Combined with heat dissipation copper pipes and through-hole structures, they are used for rapid heat dissipation and form a self-supporting ceramic body to block flames during combustion. They are also used with cleaning plates and fixing ring structures to clean dust and ensure heat dissipation efficiency.
Effectively blocks flame propagation, prevents fire spread, ensures stable operation of circuit breakers in fault conditions, extends service life, and maintains electrical performance.
Smart Images
Figure CN223566474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit breaker technical field, especially in a multi -station circuit breaker. BACKGROUND
[0002] Multi-station circuit breaker is an electrical device that plays an important role in power systems. It can switch between multiple different working positions to achieve multiple control functions of the circuit. Compared with ordinary circuit breakers, multi-station circuit breakers have more flexible operating modes. For example, it can have multiple stations such as on, off and isolation. When the on station is connected, the current can pass through the circuit breaker normally, making the circuit in a powered-on working state to provide power support for electrical equipment, and the isolation station further ensures the safety of maintenance personnel when maintaining the downstream circuit, making the circuit in a completely isolated state to avoid accidental electric shock and other dangerous situations.
[0003] For the related technology in the above, the defect of the existing circuit breaker is that when the circuit breaker is disconnected, an arc will be generated between the contacts. Under normal circumstances, the arc in the circuit breaker will be extinguished quickly by the arc extinguishing device inside the circuit breaker. However, if the arc extinguishing device fails, such as the arc chamber being damp or the arc grid being damaged, the arc may not be extinguished in time. The arc has a very high temperature, which is enough to burn the combustible materials such as insulation materials and plastic shells inside the circuit breaker, and the arc may also eject high-temperature substances outward, causing other objects around to burn. Therefore, the utility model provides a multi-station circuit breaker. SUMMARY
[0004] The purpose of the present application is to provide a multi-station circuit breaker to solve the problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a multi-station circuit breaker, comprising a circuit breaker body, a pair of fireproof components are arranged on the outer side of the circuit breaker body; the fireproof component comprises a fireproof shell arranged on the outer side of the circuit breaker body, a recess is formed in the inner side of the fireproof shell, a fireproof layer is fixedly connected to the inner wall side of the recess, the fireproof layer is made of ceramicized silicone rubber, a plurality of heat dissipation holes are formed in the inner side of the circuit breaker body, the fireproof layer and the fireproof shell, and a heat dissipation copper pipe is fixedly connected to the inner wall side of the heat dissipation hole.
[0006] Preferably, a plurality of through holes are formed in the outer side of the heat dissipation copper pipe, and the heat dissipation copper pipe is made of red copper pipe.
[0007] Preferably, a cleaning plate is slidably connected to the inner wall side of the heat dissipation copper pipe, a fixed rod is fixedly connected to the side of the cleaning plate, and a fixed ring is fixedly connected to the end of the fixed rod away from the cleaning plate.
[0008] Preferably, a connecting block is fixedly connected between every two adjacent fixing rings, and the connecting block is made of stainless steel.
[0009] Preferably, a plurality of slot holes are formed in the outer side of one end of the copper heat dissipation pipe, and the one end of the copper heat dissipation pipe is provided in an open manner.
[0010] Preferably, a fixing block is fixedly connected to the outer side of the fireproof shell, a bolt is arranged on the outer side of the fixing block, a threaded hole matched with the bolt is formed in the inner side of the fixing block, and a nut is arranged on the outer side of the bolt.
[0011] In conclusion, the technical effects and advantages of the utility model are as follows:
[0012] In the utility model, the heat generated during the use of the circuit breaker can be dissipated through the copper heat dissipation pipe and the through hole, and the installation of the pair of fireproof shells is facilitated through the cooperation of the fireproof shell, the fireproof layer, the bolt and the fixing block.
[0013] In the utility model, the cleaning plate can slide on the inner wall of the copper heat dissipation pipe, and the function is to clean the dust and impurities that may accumulate on the inner wall of the copper heat dissipation pipe, prevent the dirt from affecting the heat dissipation efficiency of the copper heat dissipation pipe, and ensure the good heat dissipation performance of the copper heat dissipation pipe. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] Figure 1 It is a first perspective view of the axial side structure of the utility model;
[0016] Figure 2 It is a second perspective view of the axial side structure of the utility model;
[0017] Figure 3 It is a structure diagram of the fireproof shell and the groove in the utility model;
[0018] Figure 4 It is a structure diagram of the fireproof shell and the fireproof layer in the utility model;
[0019] Figure 5 It is the structural schematic view of fixed rod, cleaning plate and through hole in the utility model.
[0020] In the figure: 1, circuit breaker body; 2, heat dissipation copper pipe; 3, fixed ring; 4, fireproof shell; 5, fixed block; 6, bolt; 7, connecting block; 8, slot hole; 9, heat dissipation hole; 10, recess; 11, fireproof layer; 12, fixed rod; 13, cleaning plate; 14, through hole. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0022] In the description of the utility model, it should be explained that, unless explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] Embodiment one: reference Figures 1-5The multi-station circuit breaker shown includes a circuit breaker body 1. The circuit breaker body 1 is the core part of the whole device, used to control the on-off of the circuit, and can cut off the current in time when the circuit has faults such as overload and short circuit, to ensure the safety of the circuit. A pair of fireproof components are arranged on the outside of the circuit breaker body 1; the arrangement of the fireproof components is mainly to enhance the fireproof performance of the circuit breaker in special circumstances, reduce the risk of fire caused by faults of the circuit breaker itself, and play a certain protective role on the circuit breaker when a fire occurs in the surrounding environment; the fireproof components include a fireproof shell 4 arranged on the outside of the circuit breaker body 1; the fireproof shell 4 can form a protective barrier on the outside to block the direct invasion of flames and heat to the circuit breaker body 1, and has a preliminary fireproof and heat insulation effect. A recess 10 is formed in the inner side of the fireproof shell 4, which provides a spatial position for the installation of a subsequent fireproof layer 11; the fireproof layer 11 is fixedly connected to the inner wall side of the recess 10 and is made of ceramicized silicone rubber; the ceramicized silicone rubber has excellent fireproof performance and can form a hard membrane wall structure layer in a high temperature environment, effectively preventing the spread of flames, and will not burn or drip even under the action of flames for a long time. The circuit breaker body 1 can be protected twice, further reducing the risk of damage to the circuit breaker by fire, ensuring that it can maintain a certain integrity and functionality in a fire scenario, and reducing serious consequences such as loss of control of the circuit caused by fire; a plurality of heat dissipation holes 9 are formed in the inner sides of the circuit breaker body 1, the fireproof layer 11 and the fireproof shell 4; the presence of the heat dissipation holes 9 can make the heat generated by the circuit breaker during normal operation dissipate in time, avoiding the accumulation of heat and affecting the performance and service life of the circuit breaker due to the high temperature inside the circuit breaker, and ensuring that the circuit breaker can work stably and reliably; a heat dissipation copper pipe 2 is fixedly connected to the inner wall side of the heat dissipation hole 9; the heat dissipation copper pipe 2 can quickly conduct the heat inside the circuit breaker out and speed up the heat dissipation process by utilizing the good heat conductivity of copper. A plurality of through holes 14 are formed in the outer side of the heat dissipation copper pipe 2, which can increase the contact area between the heat dissipation copper pipe 2 and the surrounding air, further improve the heat dissipation efficiency, and make the heat dissipate to the surrounding environment more quickly, so as to better maintain the normal working temperature of the circuit breaker and ensure its stability and reliability; the heat dissipation copper pipe 2 is made of red copper pipe, which has high thermal conductivity and can efficiently transfer heat, helping to improve the performance of the whole heat dissipation system, ensuring that the circuit breaker can effectively dissipate heat under different working conditions, prolonging its service life and maintaining the stability of its electrical performance.
[0024] In this embodiment, two fireproof shells 4 are sleeved on the outside of the circuit breaker body 1, the fireproof shells 4 drive the corresponding fireproof layers 11 to splice, and the circuit breaker body 1 is wrapped. The pair of fixing blocks 5 are connected and fixed by using the bolts 6, the bolts 6 are fixed by using the nuts to be tightened and abut against the fixing blocks 5, the stability of the pair of fireproof shells 4 is maintained, the setting of the plurality of heat dissipation copper pipes 2 and the plurality of through holes 14 on the outside of the heat dissipation copper pipes 2 strengthens the heat dissipation effect inside the circuit breaker body 1, and the setting of the plurality of slot holes 8 accelerates the heat exchange between the heat dissipation copper pipes 2 and the outside. If the arc extinguishing device fails, combustion will be caused. The ceramified silicone rubber is a material capable of forming a self-supporting ceramic body after combustion, thereby blocking the flame. The ceramified silicone rubber forms a fire-resistant "membrane wall structure layer" during the combustion process, thereby blocking the propagation of the flame.
[0025] Embodiment two: reference Figures 1-5 , based on the same concept as the above embodiment one, this embodiment also proposes that the inner wall side of the heat dissipation copper pipe 2 is slidingly connected with the cleaning plate 13, the cleaning plate 13 can slide on the inner wall of the heat dissipation copper pipe 2, which can clean the dust, impurities and the like that may accumulate on the inner wall of the heat dissipation copper pipe 2, prevent these dirt from affecting the heat dissipation efficiency of the heat dissipation copper pipe 2, and ensure the good heat dissipation performance of the heat dissipation copper pipe 2; the side of the cleaning plate 13 is fixedly connected with the fixing rod 12, the fixing rod 12 plays a role in connecting the cleaning plate 13 and the fixing ring 3, so that the movement of the cleaning plate 13 can be effectively transmitted, and the end of the fixing rod 12 away from the cleaning plate 13 is fixedly connected with the fixing ring 3; the connecting block 7 is fixedly connected between every two adjacent fixing rings 3, the connecting block 7 is made of stainless steel block, the connecting block 7 makes the connection of the adjacent fixing rings 3 more stable, the stainless steel material has good strength and corrosion resistance, which can ensure the stability of the structure during long-term use, and avoid affecting the normal operation of the whole heat dissipation device due to the damage of the connecting parts. A plurality of slot holes 8 are formed in the outside of one end of the heat dissipation copper pipe 2, which helps to further improve the heat dissipation effect of the heat dissipation copper pipe 2. One end of the heat dissipation copper pipe 2 is provided in an open manner, which is convenient for internal cleaning. The fixing block 5 is fixedly connected to the outside of the fireproof shell 4, the outside of the fixing block 5 is provided with the bolt 6, and the inside of the fixing block 5 is provided with the threaded hole matched with the bolt 6.
[0026] In this embodiment, the fixing ring 3 is dragged in the direction of the outside, the movement of the plurality of fixing rings 3 is kept consistent through the setting of the plurality of connecting blocks 7, and the fixing ring 3 drives the cleaning plate 13 to move through the fixing rod 12 during the movement, so as to clean the inner wall of the heat dissipation copper pipe 2 and the plurality of through holes 14, and maintain the cleanliness of the inner wall of the heat dissipation copper pipe 2.
[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A multi-position circuit breaker comprising a circuit breaker body (1), characterized in that: The outer side of the circuit breaker body (1) is provided with a pair of fireproof assemblies; The fireproof assembly comprises a fireproof shell (4) arranged on the outer side of the circuit breaker body (1), the inner side of the fireproof shell (4) is provided with a groove (10), the inner wall side of the groove (10) is fixedly connected with a fireproof layer (11), the fireproof layer (11) is made of ceramicized silicone rubber, the inner sides of the circuit breaker body (1), the fireproof layer (11) and the fireproof shell (4) are all provided with a plurality of heat dissipation holes (9), and the inner wall side of the heat dissipation hole (9) is fixedly connected with a heat dissipation copper pipe (2).
2. A multi-position circuit breaker according to claim 1, characterized in that: The outer side of the heat dissipation copper pipe (2) is provided with a plurality of through holes (14), and the heat dissipation copper pipe (2) is made of red copper pipe.
3. A multi-position circuit breaker according to claim 2, wherein: The inner wall side of the heat dissipation copper pipe (2) is slidably connected with a cleaning plate (13), the side of the cleaning plate (13) is fixedly connected with a fixing rod (12), and the end, away from the cleaning plate (13), of the fixing rod (12) is fixedly connected with a fixing ring (3).
4. A multi-position circuit breaker according to claim 3, wherein: Every two adjacent fixing rings (3) are fixedly connected with a connecting block (7), and the connecting block (7) is made of stainless steel block.
5. A multi-position circuit breaker according to claim 4, wherein: The outer side of one end of the heat dissipation copper pipe (2) is provided with a plurality of slot holes (8), and the one end of the heat dissipation copper pipe (2) is arranged in an open manner.
6. A multi-position circuit breaker according to claim 1, wherein: The outer side of the fireproof shell (4) is fixedly connected with a fixing block (5), the outer side of the fixing block (5) is provided with a bolt (6), the inner side of the fixing block (5) is provided with a threaded hole matched with the bolt (6), and the outer side of the bolt (6) is provided with a nut.