Conflux wiring module capable of preventing hot-line operation

Abstract

A bus-bar wiring module preventing hot-line operation comprises a module shell, a shell cover, a bus-bar, a wire inlet circuit breaker, a wire outlet circuit breaker and an electric linkage structure, the bus-bar is arranged in the module shell, the electric linkage structure is fixedly connected with the inner wall of the module shell, the bus-bar is provided with a wire inlet, a wire outlet and a connecting port, and the wire inlet circuit breaker is connected with the wire outlet circuit breaker. The inlet wire breaker is electrically connected with the inlet wire port, the outlet wire breaker is electrically connected with the outlet wire port, the electric linkage structure is electrically connected with the connecting port, the shell cover is sleeved on the opening of the module shell, and a locking block is arranged on one side, close to the module shell, of the shell cover. According to the utility model, a double-locking structure is adopted, electrical locking is taken as a main part, mechanical locking is taken as an auxiliary part, tight, sensitive and intelligent state association with an incoming circuit breaker is ensured, and when a circuit is electrified, a response is quickly made and operation is limited to ensure safety and specifications; meanwhile, misoperation can still be prevented when an electrical locking fault occurs, and double guarantees are provided for the system.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a busbar module that is protected against live operation. Background Technology

[0002] In power distribution lines, one incoming circuit breaker is often distributed to several outgoing circuit breakers. The incoming circuit breaker controls the outgoing circuit breakers, and the outgoing circuit breakers control the downstream loads.

[0003] When multiple outgoing circuit breakers are connected to an incoming circuit breaker, multiple wires need to be connected to the incoming circuit breaker; it is not permitted to connect them all together as a single wire. In this case, a busbar is needed to connect the incoming and outgoing circuit breakers. When the incoming circuit breaker is closed, the busbar is energized, and wiring work is generally not allowed while the circuit breaker is energized, as this poses a risk of electric shock to the operator. Therefore, a device is needed that can ensure the normal connection and power distribution function of the power distribution line, while effectively preventing operators from performing live wiring work when the incoming circuit breaker is closed and the busbar is energized. Utility Model Content

[0004] The purpose of this utility model is to provide a busbar module that prevents live operation, which solves the problem of ensuring the normal connection of power distribution lines while effectively preventing operators from performing live wiring operations.

[0005] To achieve the above objectives, this utility model provides a busbar module for protection against live operation, comprising a module housing, a cover, a busbar, an incoming circuit breaker, an outgoing circuit breaker, and an electric linkage structure. The busbar is disposed inside the module housing, and the electric linkage structure is fixedly connected to the inner wall of the module housing. The busbar is provided with an inlet, an outlet, and a connection port. The incoming circuit breaker is electrically connected to the inlet, the outgoing circuit breaker is electrically connected to the outlet, and the electric linkage structure is electrically connected to the connection port. The cover is fitted onto the opening of the module housing, and a locking block is provided on the side of the cover near the module housing.

[0006] When the electric linkage structure is energized, it abuts against the locking block, and the cover is fixedly installed with the module housing. When the electric linkage structure is de-energized, it separates from the locking block, and the cover is separated from the module housing.

[0007] Preferably, the electric linkage structure includes a push-pull electromagnet and a locking block. The locking block is fixedly connected to the module housing, the push-pull electromagnet is connected to the locking block, the locking block is provided with a connecting groove, and the locking block is locked inside the connecting groove; the push-pull electromagnet is electrically connected to the busbar connection port.

[0008] When the push-pull electromagnet is energized, it passes through the locking block and abuts against the locking block; when the push-pull electromagnet is de-energized, it separates from the locking block.

[0009] Preferably, the module housing is provided with a threaded hole, and the cover is provided with a connecting hole, the connecting hole and the threaded hole are connected by bolts.

[0010] Preferably, the module housing is further provided with an inlet hole and an outlet hole, the inlet circuit breaker is electrically connected to the inlet port through the inlet hole, and the outlet circuit breaker is electrically connected to the outlet hole through the outlet port.

[0011] Preferably, the module housing is further provided with a protective cover, which is respectively disposed at the inlet hole and the outlet hole.

[0012] Preferably, the system further includes a support bracket located between the module housing and the busbar.

[0013] Preferably, the side of the bracket connected to the busbar has multiple heat dissipation holes.

[0014] Preferably, it also includes an indicator light, which is electrically connected to the busbar or the electro-hydraulic linkage structure.

[0015] Preferably, the electrical linkage structure further includes a redundant safety structure and a backup push-pull electromagnet, wherein the redundant safety structure is used to detect the push-pull electromagnet and control the backup push-pull electromagnet.

[0016] The spare push-pull electromagnet is symmetrically arranged with the push-pull electromagnet and is located on both sides of the locking block;

[0017] The redundant safety structure includes a sensing device and a control unit. The sensing device is connected to the push-pull electromagnet, and the control unit is connected to the backup push-pull electromagnet.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model utilizes an electromagnet to draw power from a busbar to construct a safety protection mechanism. Multiple conductors in the power distribution line are connected via a busbar. When the incoming circuit breaker is closed, the busbar and the electromagnet are energized, and the electro-linkage structure achieves electrical locking, preventing the cover from being opened and thus stopping wiring operations. This structure uses the closing of the incoming circuit breaker as a trigger, utilizing the energized busbar to lock the cover, eliminating the danger of live operation, adhering to safety regulations, ensuring personal safety, reducing the probability of accidents, and providing reliable protection for wiring operations.

[0020] 2. The dual-locking structure combining mechanical and electrical interlocking adopted in this utility model has significant advantages. The electrical interlocking is dominant and closely related to the status of the incoming circuit breaker. It can sensitively detect the energization of the circuit and react quickly. It takes effect immediately when energized to restrict operation, demonstrating high sensitivity and intelligence. The mechanical interlocking serves as an auxiliary mechanism, providing intuitive and stable physical protection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the circuit connection of this utility model.

[0024] Figure 3 This is a schematic diagram of the connection of the protective cover of this utility model.

[0025] Figure 4 This is a connection diagram of the bracket of this utility model.

[0026] Figure 5 This is a connection diagram of the indicator light of this utility model.

[0027] Figure 6 This is a schematic diagram of the redundant safety structure of this utility model.

[0028] In the diagram: Module housing 1; Threaded hole 11; Inlet hole 12; Outlet hole 13; Protective cover 14; Shell cover 2; Locking block 21; Connecting hole 22; Busbar 3; Inlet port 31; Outlet port 32; Connecting port 33; Inlet circuit breaker 4; Outlet circuit breaker 5; Electrical linkage structure 6; Push-pull electromagnet 61; Locking block 62; Redundant safety structure 63; Sensing device 631; Control unit 632; Spare push-pull electromagnet 64; Bracket 7; Heat dissipation hole 71; Indicator light 8. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] like Figure 1 , Figure 2As shown, a busbar module with protection against live operation includes a module housing 1, a cover 2, a busbar 3, an incoming circuit breaker 4, an outgoing circuit breaker 5, and an electric linkage structure 6. The busbar 3 is disposed inside the module housing 1, and the electric linkage structure 6 is fixedly connected to the inner wall of the module housing 1. The busbar 3 has an inlet 31, an outlet 32, and a connection port 33. The incoming circuit breaker 4 is electrically connected to the inlet 31, the outgoing circuit breaker 5 is electrically connected to the outlet 32, and the electric linkage structure 6 is electrically connected to the connection port 33. The cover 2 is fitted onto the opening of the module housing 1, and a locking block 21 is provided on the side of the cover 2 closest to the module housing 1. When the electric linkage structure 6 is energized, it abuts against the locking block 21, and the cover 2 is fixedly disposed to the module housing 1. When the electric linkage structure 6 is de-energized, it separates from the locking block 21, and the cover 2 is separated from the module housing 1. This utility model uses an electromagnet to draw power from the busbar, thus constructing a complete safety protection mechanism. In power distribution lines, when multiple outgoing circuit breakers 5 are connected to incoming circuit breaker 4, multiple conductors need to be wired through busbars. Operating under energized conditions poses a significant risk of electric shock. When incoming circuit breaker 4 is closed, the busbars are energized, and the electromagnets are also energized. At this time, the electro-clutch mechanism 6 activates, achieving electrical locking. After being energized, the electro-clutch mechanism 6 abuts against the locking block 21 on the cover 2, achieving a mechanical connection and simultaneously ensuring that the cover 2 is fixed to the module housing 1, preventing operators from opening the cover 2 for wiring operations. This structure uses the closed state of the incoming circuit breaker 4 as the trigger point, utilizing the energized state of the busbars to lock the cover 2 through the electro-clutch mechanism 6, fundamentally eliminating the dangerous situation where operators may be operating under energized conditions during wiring work. This mechanism strictly adheres to electrical safety operating procedures, greatly enhancing the safety of the entire wiring operation process, comprehensively protecting the personal safety of operators, significantly reducing the probability of safety accidents caused by energized operations, and providing reliable safety guarantees for wiring operations in power distribution lines.

[0031] For details, please refer to Figure 2The electric linkage structure 6 includes a push-pull electromagnet 61 and a locking block 62. The locking block 62 is fixedly connected to the module housing 1. The push-pull electromagnet 61 is connected to the locking block 62, and the locking block 62 has a connecting groove. A locking block 21 is locked inside the connecting groove. The push-pull electromagnet 61 is electrically connected to the connection port 33 of the busbar 3. When the push-pull electromagnet 61 is energized, it passes through the locking block 62 and abuts against the locking block 21. When the push-pull electromagnet 61 is de-energized, it separates from the locking block 21. When the incoming circuit breaker 4 is tripped, neither the busbar nor the push-pull electromagnet 61 is energized, and the movable pin of the electromagnet is in the attracted state. Because there is no current excitation, the electromagnet will not generate an electromagnetic force that causes the movable pin to extend, so the locking holes on the module body and the cover plate are in the open state, and the electrical lock can be released. This design can automatically switch to an operable state according to the tripped state of the incoming circuit breaker 4, which is convenient for operators to check and maintain, and avoids unnecessary locking when there is no power, thus improving operating efficiency. When the incoming circuit breaker 4 is closed, the busbar and electromagnet are energized. The electromagnet generates sufficient electromagnetic force to extend the movable pin. The movable pin passes through the locking holes on the module body and the cover plate in sequence to lock the panel, forming an electrical lock. The system is energized when the circuit is closed. This electrical lock method can effectively prevent operators from accidentally opening the cover plate to perform dangerous operations such as wiring, fundamentally ensuring the safety of wiring operations on power distribution lines.

[0032] Furthermore, the module housing 1 is provided with threaded holes 11, and the cover 2 is provided with connecting holes 22. The connecting holes 22 and the threaded holes 11 are connected by bolts. This utility model provides threaded holes 11 at the four corners of the module housing 1, and uses four bolts to securely lock the cover 2 onto the module housing 1, establishing a mechanical lock and providing basic physical protection for the device. The dual-locking structure combining mechanical and electrical interlocking adopted in this device has significant advantages. The electrical interlocking is dominant and closely related to the state of the incoming circuit breaker 4. It can sensitively detect the energized circuit and react quickly, taking effect immediately when energized to restrict operation, demonstrating high sensitivity and intelligence. The mechanical interlocking serves as an auxiliary, providing intuitive and stable physical protection. When performing operations such as removing the cover, the operating sequence of the dual-locking structure is crucial. The electrical interlocking operates based on the energized circuit state; the electrical interlocking must be released first before the mechanical interlocking can be released and subsequent operations can proceed. This sequence integrates the advantages of both, effectively improving the safety of power distribution line wiring operations, avoiding safety accidents caused by misoperation, and making operations safe, orderly, and controllable.

[0033] Furthermore, the module housing 1 is further optimized with an inlet hole 12 and an outlet hole 13. The inlet circuit breaker 4 is electrically connected to the inlet port 31 through the inlet hole 12, and the outlet circuit breaker 5 is electrically connected to the outlet hole 13 through the outlet port 32. This module guides the inlet and outlet cables in an orderly manner through the inlet hole 12 and outlet hole 13, physically separating them and effectively avoiding potential electromagnetic interference, signal crosstalk, and other mutual interference. This ensures the stability of the circuit operation, guarantees that each line can function normally according to its intended purpose, and reduces the risk of electrical performance degradation and signal distortion caused by interference, thereby improving the reliability and safety of the entire electrical system. Simultaneously, this design facilitates the categorized management of inlet and outlet cables, making electrical connections clearer and more intuitive, convenient for installers, and beneficial for subsequent maintenance and repair work. It also enables rapid location and handling of line problems, improving overall work efficiency.

[0034] like Figure 3 As shown, the module housing 1 is also provided with a protective cover 14, which is respectively located at the inlet hole 12 and the outlet hole 13. When no wiring operation is being performed, the protective cover 14 effectively prevents dust, moisture, etc., from entering the inlet 31, outlet 32, and connection port 33. Dust and moisture can adversely affect the electrical performance of the connection points, such as increasing contact resistance, causing short circuits, or corrosion. The protective cover 14 avoids these problems, thereby maintaining stable electrical performance. Furthermore, this helps reduce aging and damage to the connection points, extends the service life of the equipment, reduces maintenance costs, and ensures stable operation of the entire system.

[0035] like Figure 4 As shown, the system also includes a bracket 7, which is positioned between the module housing 1 and the busbar 3. This invention elevates the busbar 3 using the bracket 7, aiding in heat dissipation and preventing overheating that could affect its electrical performance. During installation and maintenance, the elevated busbar 3 is easier to operate; installers can easily connect lines and adjust positions, while maintenance personnel can quickly locate and repair problems. Furthermore, the bracket 7 makes the internal structure of the wiring module more rationally laid out, and the spatial relationships between components more coordinated, thereby improving the overall performance of the wiring module.

[0036] Furthermore, the side of the bracket 7 connected to the busbar 3 is provided with multiple heat dissipation holes 71. The bracket 7 in this design is designed with multiple heat dissipation holes 71 on the side connected to the busbar 3, creating conditions for free airflow within the bracket 7. When the busbar 3 generates heat, the air continuously circulates within the bracket 7, which can more quickly remove the heat generated by the busbar 3, thereby more effectively improving the heat dissipation efficiency of the busbar 3. This allows the busbar 3 to operate continuously and stably in a favorable temperature environment, ensuring that its electrical performance remains stable.

[0037] like Figure 5 As shown, it also includes indicator lights 8, which are electrically connected to busbar 3 or the electrical linkage structure 6. Indicator lights 8 on the module housing 1 indicate the energized / de-energized status of the electrical linkage structure 6. When the incoming circuit breaker 4 is closed, the electrical linkage structure 6 is energized, and indicator lights 8 illuminate, indicating electrical lockout and preventing the cover from being opened. When the circuit breaker is open and de-energized, the light goes out, indicating that the cover can be safely opened. Combined with the fact that the housing 2 of this invention is made of transparent insulating material, it allows operators to easily and intuitively understand the module's safety status after sealing. Furthermore, in the equipment's operation process, the physical lockout can only be released when indicator lights 8 are off. The physical lockout is a mechanical locking device, its purpose being to prevent accidental operation of the equipment at inappropriate times. The connection between indicator lights 8 and the physical lockout allows for strict standardization of the equipment's operation sequence from both electrical and mechanical dimensions, thereby providing further assurance for the safety, accuracy, and standardization of the operation process.

[0038] like Figure 6 As shown, in one embodiment, the present invention further includes a redundant safety structure 63 and a spare push-pull electromagnet 64. The redundant safety structure 63 is used to detect the push-pull electromagnet 61 and control the spare push-pull electromagnet 64.

[0039] The redundant safety structure 63 includes a sensing device 631 and a control unit 632. Specifically, the sensing device 631 includes a current sensor and a magnetic field sensor, and the control unit 632 is a relay.

[0040] This invention incorporates a current sensor, specifically a Hall effect current sensor, connected to the power supply line of the push-pull electromagnet 61. This sensor monitors the current flowing through the electromagnet 61 in real time. The Hall effect current sensor measures current non-contactly and converts the detected current signal into an electrical signal recognizable by the control unit. If the current suddenly interrupts or becomes excessively high, exceeding the normal operating current range, it may indicate an open or short circuit in the power supply line. When the current sensor detects an abnormal current, it sends this abnormal signal to a relay. The relay then activates a backup device according to pre-set logic to ensure the safe and stable operation of the busbar module.

[0041] Furthermore, a magnetic field sensor, specifically a Hall effect magnetic field sensor, is placed near the push-pull electromagnet 61. Hall effect magnetic field sensors are extremely sensitive and can accurately detect changes in the magnetic field of the push-pull electromagnet 61. Based on the Hall effect principle, under the influence of a magnetic field, the charge carriers inside the sensor are deflected in a specific direction, generating a potential difference perpendicular to both the current and the magnetic field. This potential difference has a specific proportional relationship with the magnetic field strength, and the magnetic field sensor converts the detected magnetic field strength into a voltage signal. In-depth analysis of the processed voltage signal can determine whether the push-pull electromagnet 61 has problems such as abnormal core magnetization or coil damage. For example, if the analyzed voltage signal deviates significantly from the normal range, it is likely that the core magnetization has changed abnormally or the coil is damaged, causing a change in magnetic field strength reflected in the voltage signal. By combining the magnetic field sensor with a current sensor, the operating status of the main push-pull electromagnet 61 can be detected more accurately, further ensuring the normal operation of the device.

[0042] The backup push-pull electromagnet 64 is symmetrically arranged with the main push-pull electromagnet 61, and is located on both sides of the locking block 62. When the sensing device 631 detects a fault in the main push-pull electromagnet 61 (abnormal current, abnormal magnetic field strength), the relay will activate the backup push-pull electromagnet 64 to ensure the safe and stable operation of the busbar module. Simultaneously, an alarm signal will be sent to the indicator light 8 to notify the operator to take appropriate measures.

[0043] Meanwhile, the locking block 21 is detachably connected to the housing cover 2. Specifically, the locking block 21 is connected to the housing cover 2 by bolts, and the bolts can be adjusted and removed from the outside of the housing cover 2. When the electric linkage structure 6 fails to operate, it can prevent the housing cover 2 from being unable to be opened, ensuring that the device can operate normally.

[0044] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A busbar module protected against live operation, characterized in that, The module includes a housing (1), a cover (2), a busbar (3), an incoming circuit breaker (4), an outgoing circuit breaker (5), and an electrical linkage structure (6). The busbar (3) is located inside the housing (1). The electrical linkage structure (6) is fixedly connected to the inner wall of the housing (1). The busbar (3) has an inlet (31), an outlet (32), and a connection port (33). The incoming circuit breaker (4) is electrically connected to the inlet (31). The outgoing circuit breaker (5) is electrically connected to the outlet (32). The electrical linkage structure (6) is electrically connected to the connection port (33). The cover (2) is fitted onto the opening of the housing (1). The cover (2) has a locking block (21) on the side of the cover (2) closest to the housing (1). When the electric linkage structure (6) is energized, it abuts against the locking block (21). The cover (2) is fixedly set with the module housing (1). When the electric linkage structure (6) is de-energized, it separates from the locking block (21). The cover (2) is separated from the module housing (1).

2. The busbar module for protection against live operation as described in claim 1, characterized in that, The electric linkage structure (6) includes a push-pull electromagnet (61) and a locking block (62). The locking block (62) is fixedly connected to the module housing (1). The push-pull electromagnet (61) is connected to the locking block (62). The locking block (62) is provided with a connecting groove. The locking block (21) is locked inside the connecting groove. The push-pull electromagnet (61) is electrically connected to the busbar (3) connection port (33). When the push-pull electromagnet (61) is energized, it passes through the locking block (62) and abuts against the locking block (21). When the push-pull electromagnet (61) is de-energized, it separates from the locking block (21).

3. A busbar module for protection against live operation as described in claim 2, characterized in that, The module housing (1) is provided with a threaded hole (11), and the cover (2) is provided with a connecting hole (22). The connecting hole (22) and the threaded hole (11) are connected by bolts.

4. A busbar module for protection against live operation as described in claim 1, characterized in that, The module housing (1) is also provided with an inlet hole (12) and an outlet hole (13). The inlet circuit breaker (4) is electrically connected to the inlet port (31) through the inlet hole (12), and the outlet circuit breaker (5) is electrically connected to the outlet hole (13) through the outlet port (32).

5. A busbar module for protection against live operation as described in claim 4, characterized in that, The module housing (1) is also provided with a protective cover (14), which is respectively located at the inlet hole (12) and the outlet hole (13).

6. A busbar module for protection against live operation as described in claim 1, characterized in that, It also includes a bracket (7) located between the module housing (1) and the busbar (3).

7. A busbar module for protection against live operation as described in claim 6, characterized in that, The bracket (7) is provided with multiple heat dissipation holes (71) on the side where it is connected to the busbar (3).

8. A busbar module for protection against live operation as described in claim 1, characterized in that, It also includes an indicator light (8), which is electrically connected to the busbar (3) or the electric linkage structure (6).

9. A busbar module for protection against live operation as described in claim 2, characterized in that, The electric linkage structure (6) also includes a redundant safety structure (63) and a backup push-pull electromagnet (64). The redundant safety structure (63) is used to detect the push-pull electromagnet (61) and control the backup push-pull electromagnet (64). The spare push-pull electromagnet (64) is symmetrically arranged with the push-pull electromagnet (61) and is located on both sides of the locking block (62); The redundant safety structure (63) includes a sensing device (631) and a control unit (632). The sensing device (631) is connected to the push-pull electromagnet (61), and the control unit (632) is connected to the backup push-pull electromagnet (64).

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