A digital intelligent circuit breaker electrical arc frequency detection device

Abstract

The utility model belongs to the technical field of circuit breaker, and disclose a kind of digital intelligent circuit breaker electrical fire arc frequency detection device, including circuit breaker body, the one end of circuit breaker body is equipped with two wiring holes, the one end with wiring hole of circuit breaker body is equipped with sensor body, the one end of sensor body is equipped with two installation grooves, the inner surface of two installation grooves is equipped with clamping assembly, the utility model is equipped with clamping assembly, cooperation circuit breaker body on clamping block two, under the elastic expansion of reset spring, hemispherical clamping block one can automatically adapt the radian of spherical clamping block two and embed recess, without accurate alignment angle can complete stable clamping;When disassembling, only need to exert outward pulling force, clamping block one can compress spring and separate recess, solve the problem that traditional rigid buckling structure is complicated to disassemble, easy to deform, improve the convenience and stability of sensor body and circuit breaker body connection.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, specifically a digital intelligent circuit breaker electrical arc frequency detection device. Background Technology

[0002] To meet the intelligent functional requirements of digital circuit breakers, a device is needed that can work in conjunction with the circuit breaker to accurately capture and identify the frequency of electrical arcing. By monitoring the arcing frequency characteristics in the circuit in real time, it can provide accurate fault judgment basis for the circuit breaker and help the electrical system achieve a safety management upgrade from "post-fault handling" to "pre-fault early warning". Against this background, the digital circuit breaker electrical arcing frequency detection device has emerged.

[0003] In the use of existing digital circuit breaker electrical arc frequency detection devices, the sensor body and the circuit breaker body are mostly rigidly fastened. During disassembly and assembly, they need to be aligned at a specific angle, and uneven force can easily cause deformation of the fastening parts. This not only makes the operation cumbersome, but also affects the connection stability.

[0004] Therefore, a digital intelligent circuit breaker electrical arc frequency detection device is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a digital intelligent circuit breaker electrical arc frequency detection device. It solves the problems of cumbersome disassembly and assembly and easy deformation of traditional rigid snap-fit ​​structures, improves the convenience and stability of the connection between the sensor body and the circuit breaker body, and reduces installation loosening or wire crushing damage caused by wire diameter mismatch. Furthermore, it improves the stable operation capability of the device from the perspective of line adaptation and component protection, complementing the advantage of convenient disassembly and assembly, and comprehensively optimizes the user experience of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a digital intelligent circuit breaker electrical arc frequency detection device, comprising a circuit breaker body, one end of which is provided with two wiring holes, and the end of the circuit breaker body with the wiring holes is provided with a sensor body, one end of which is provided with two mounting slots, and the inner surface of each of the two mounting slots is provided with a snap-fit ​​assembly, the snap-fit ​​assembly including a mounting plate fixedly connected to one side inner wall of the mounting slot, two sleeve rods fixedly connected to one end of the mounting plate, a return spring fixedly connected to one side inner wall of each of the two sleeve rods, a connecting plate fixedly connected to one end of each of the two return springs, a snap-fit ​​block one fixedly connected to one end of each of the two connecting plates, and a snap-fit ​​block two fixedly connected to one end of the circuit breaker body for use with the two snap-fit ​​blocks one.

[0007] Preferably, both of the first locking blocks are hemispherical, and the second locking block is spherical.

[0008] Preferably, the outer surface of the second snap-fit ​​block is provided with a groove for use with the two first snap-fit ​​blocks, and the inner surface of the two grooves is provided with an anti-slip pad.

[0009] Preferably, the inner surface of the sleeve rod has two guide grooves, and the outer surface of the connecting plate is fixedly connected with a guide block that cooperates with the two guide grooves.

[0010] Preferably, finger grooves are provided at both ends of the sensor body.

[0011] Preferably, one end of the sensor body has two wire slots, both of which are through-type structures, and the apertures of the two wire slots are adapted to the diameters of the live wire and neutral wire being detected.

[0012] Preferably, the inner surfaces of both threading grooves are provided with wear-resistant ceramic rings, and the inner surfaces of the wear-resistant ceramic rings are provided with elastic buffer rings.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a snap-fit ​​component, works in conjunction with the snap-fit ​​block two on the circuit breaker body. Under the elastic extension and contraction of the reset spring, the hemispherical snap-fit ​​block one can automatically adapt to the curvature of the spherical snap-fit ​​block two and embed into the groove, achieving stable snap-fit ​​without the need for precise angle alignment. When disassembling, only an outward pulling force needs to be applied, and the snap-fit ​​block one can compress the spring and disengage from the groove. This solves the problems of cumbersome disassembly and assembly and easy deformation of traditional rigid snap-fit ​​structures, and improves the convenience and stability of the connection between the sensor body and the circuit breaker body.

[0014] 2. This utility model, by setting a wear-resistant ceramic ring and an elastic buffer ring in the wire groove, effectively avoids the increase in gap caused by wear of the inner wall of the wire groove after long-term use. The wear-resistant ceramic ring resists the friction of wire insertion and removal, and the elastic buffer ring adapts to wrap the wire. This ensures that the wire is always within the effective detection range of the sensor. At the same time, it can adapt to live wires and neutral wires with slight differences in wire diameter, reducing the loosening of installation or wire crushing and damage caused by wire diameter mismatch. It further improves the stable operation capability of the device from the aspects of circuit adaptation and component protection, complementing the advantages of convenient disassembly and assembly, and comprehensively optimizing the user experience of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the circuit breaker body and sensor body structure of this utility model; Figure 3 This is a schematic diagram of the sensor body structure of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the snap-fit ​​assembly and sleeve rod of this utility model.

[0016] In the diagram: 1. Circuit breaker body; 11. Wiring hole; 2. Sensor body; 21. Wear-resistant ceramic ring; 22. Elastic buffer ring; 23. Wire groove; 24. Finger groove; 25. Mounting groove; 26. Snap-fit ​​assembly; 261. Mounting plate; 262. Guide block; 263. Guide groove; 264. Return spring; 265. Connecting plate; 266. Sleeve rod; 267. Snap-fit ​​block one; 268. Snap-fit ​​block two; 269. Groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 4 As shown, this utility model provides a digital intelligent circuit breaker electrical arc frequency detection device, including a circuit breaker body 1. One end of the circuit breaker body 1 is provided with two wiring holes 11. The end of the circuit breaker body 1 with wiring holes 11 is provided with a sensor body 2. One end of the sensor body 2 is provided with two mounting slots 25. The inner surface of the two mounting slots 25 is provided with a snap-fit ​​component 26. The snap-fit ​​assembly 26 includes a mounting plate 261 fixedly connected to the inner wall of one side of the mounting groove 25. Two sleeve rods 266 are fixedly connected to one end of the mounting plate 261. A return spring 264 is fixedly connected to the inner wall of one side of each of the two sleeve rods 266. A connecting plate 265 is fixedly connected to one end of each of the two return springs 264. A snap-fit ​​block 267 is fixedly connected to one end of each of the two connecting plates 265. A snap-fit ​​block 268 is fixedly connected to one end of the circuit breaker body 1 to cooperate with the two snap-fit ​​blocks 267. By setting up the snap-fit ​​assembly 26, the elastic extension and contraction characteristics of the return springs 264 can drive the connecting plate 265 and the snap-fit ​​block 267 to automatically adapt to the snap-fit ​​block 268. The sensor body 2 and the circuit breaker body 1 can be quickly connected without complicated alignment operations, solving the problem of cumbersome disassembly and assembly in traditional connection methods and improving the assembly efficiency of the device.

[0019] Specifically, both snap-fit ​​blocks 1 267 are hemispherical, and snap-fit ​​block 2 268 is spherical. The hemispherical snap-fit ​​block 1 267 and the spherical snap-fit ​​block 2 268 cooperate to reduce the contact resistance when they are connected. This facilitates the quick contact of snap-fit ​​block 1 267 to snap-fit ​​block 2 268 during installation and reduces frictional wear between components during disassembly, thus extending the service life of the snap-fit ​​assembly 26.

[0020] like Figures 1 to 4 As shown, the outer surface of the second snap-fit ​​block 268 is provided with grooves 269 for use with the two first snap-fit ​​blocks 267. The inner surface of the two grooves 269 is provided with anti-slip pads. The grooves 269 can limit the snap-fit ​​blocks 267 and prevent the snap-fit ​​blocks 267 from shifting due to external force vibration after snap-fit. At the same time, the anti-slip pads in the grooves 269 can increase the friction between the first snap-fit ​​blocks 267 and the second snap-fit ​​block 268, further improving the stability of the connection between the sensor body 2 and the circuit breaker body 1 and preventing loosening from affecting the detection accuracy.

[0021] Furthermore, the inner surface of the sleeve rod 266 has two guide grooves 263, and the outer surface of the connecting plate 265 is fixedly connected with a guide block 262 that works with the two guide grooves 263. The cooperation between the guide block 262 and the guide groove 263 can limit the movement direction of the connecting plate 265 within the sleeve rod 266, preventing the connecting plate 265 from shifting or jamming when the return spring 264 extends or retracts, ensuring that the first snap-fit ​​block 267 can always be accurately aligned with the second snap-fit ​​block 268, and ensuring the stable operation of the snap-fit ​​assembly 26.

[0022] like Figures 1 to 4 As shown, finger grooves 24 are provided at both ends of the sensor body 2. The finger grooves 24 provide convenient force points for operators to disassemble and install the sensor body 2. Force can be applied by inserting fingers into the finger grooves 24 without the need for tools, reducing the difficulty of disassembly and installation. At the same time, it avoids damage to the outer shell of the sensor body 2 or the snap-fit ​​component 26 caused by prying with tools, thus improving operational safety and device durability.

[0023] It is worth noting that two wire slots 23 are provided at one end of the sensor body 2. Both wire slots 23 are through-type structures. The aperture of the two wire slots 23 is adapted to the diameter of the live wire and neutral wire being detected. The through-type wire slots 23 allow the live wire and neutral wire to pass through independently, avoiding wire entanglement that affects the current signal acquisition. Moreover, the aperture of the wire slots 23 is adapted to the wire diameter, which can ensure that the wire is stably within the effective detection range of the sensor body 2, prevent the wire from shaking and causing the arc frequency detection signal to be distorted, and improve the detection accuracy.

[0024] like Figures 1 to 4 As shown, the inner surfaces of both wire troughs 23 are provided with wear-resistant ceramic rings 21, and the inner surfaces of the wear-resistant ceramic rings 21 are provided with elastic buffer rings 22. The wear-resistant ceramic rings 21 can resist the friction caused by wire insertion and removal or long-term use, and prevent the inner wall of the wire trough 23 from being worn and causing the gap to increase. The elastic buffer rings 22 can adapt to the deformation according to the wire diameter, which can not only accommodate live wires and neutral wires with slight differences in wire diameter, but also play a flexible fixing role for the wire, preventing the wire from being squeezed and damaged or loosened, extending the service life of the wire trough 23 and the wire, while ensuring the stability of the circuit connection.

[0025] Working principle and process: During use, force is applied through the finger grooves 24 at both ends of the sensor body 2 to align the mounting groove 25 of the sensor body 2 with the snap-fit ​​block 268 of the circuit breaker body 1. The reset spring 264 in the snap-fit ​​assembly 26 pushes the connecting plate 265 and the snap-fit ​​block 267 into the groove 269 of the snap-fit ​​block 268, thus fixing the sensor body 2 to the circuit breaker body 1. The live wire and neutral wire are passed through the two wire slots 23 of the sensor body 2 and connected to the wiring hole 11 of the circuit breaker body 1. The sensor body 2 collects current signals through the lines in the wire slots 23 and monitors the arc frequency in the live wire and neutral wire in real time. If an abnormal arc frequency is detected, the signal can be transmitted to the circuit breaker body 1 to trigger the circuit breaker body 1 to cut off the circuit and achieve electrical safety protection. The wear-resistant ceramic ring 21 and the elastic buffer ring 22 protect the lines and the wire slots 23, and the anti-slip pad improves the snap-fit ​​stability, together ensuring the continuous and accurate operation of the device.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digital intelligent circuit breaker electrical arc frequency detection device, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) has two wiring holes (11) at one end. The circuit breaker body (1) with wiring holes (11) has a sensor body (2) at one end. The sensor body (2) has two mounting slots (25) at one end. The inner surface of the two mounting slots (25) is provided with snap-fit ​​components (26). The snap-fit ​​assembly (26) includes a mounting plate (261) fixedly connected to the inner wall of one side of the mounting groove (25). Two sleeve rods (266) are fixedly connected to one end of the mounting plate (261). A return spring (264) is fixedly connected to the inner wall of one side of each of the two sleeve rods (266). A connecting plate (265) is fixedly connected to one end of each of the two return springs (264). A snap-fit ​​block one (267) is fixedly connected to one end of each of the two connecting plates (265). A snap-fit ​​block two (268) used in conjunction with the two snap-fit ​​blocks one (267) is fixedly connected to one end of the circuit breaker body (1).

2. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 1, characterized in that: Both of the first snap-fit ​​blocks (267) are hemispherical, and the second snap-fit ​​block (268) is spherical.

3. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 2, characterized in that: The outer surface of the second snap-fit ​​block (268) is provided with a groove (269) for use with the two first snap-fit ​​blocks (267), and the inner surface of the two grooves (269) is provided with an anti-slip pad.

4. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 1, characterized in that: The inner surface of the sleeve (266) has two guide grooves (263), and the outer surface of the connecting plate (265) is fixedly connected with a guide block (262) that works in conjunction with the two guide grooves (263).

5. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 1, characterized in that: Both ends of the sensor body (2) are provided with finger grooves (24).

6. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 1, characterized in that: Two wire slots (23) are provided at one end of the sensor body (2). Both wire slots (23) are through-type structures, and the aperture of the two wire slots (23) is adapted to the diameter of the live wire and neutral wire being detected.

7. The digital intelligent circuit breaker electrical arc frequency detection device according to claim 6, characterized in that: The inner surfaces of both of the wire-threading grooves (23) are provided with wear-resistant ceramic rings (21), and the inner surfaces of the wear-resistant ceramic rings (21) are provided with elastic buffer rings (22).

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