Fault arc detector

Abstract

The utility model discloses a fault arc detector comprising a detector main body, the front part of the detector main body is provided with an operation panel, the front part of the operation panel is rotatably provided with a protective cover, the top part and the bottom part of the detector main body are respectively provided with a wiring part, and the front wall of each wiring part is provided with a terminal screw hole. The front portion of the operation panel is provided with a protective cover, the front portion of each wiring portion is rotatably provided with a dustproof cover, the surface of each dustproof cover is provided with an insertion groove, the surface of each wiring portion is provided with an insertion plate, the insertion plates are inserted into the insertion grooves, the two sides of the operation panel are provided with fixing plates, and the surfaces of the fixing plates are provided with fixing holes. The operation panel can be effectively protected, the problem that the operation panel is damaged or touched by mistake due to collision is avoided, and the dustproof cover is arranged at the front part of the wiring part, so that the terminal screw hole can be covered for dust prevention, and the problem that dust or moisture enters the terminal screw hole to cause short circuit or oxidation of the wiring terminal is avoided.

Description

Technical Field

[0001] This utility model relates to the field of arc detector technology, and specifically to a fault arc detector. Background Technology

[0002] A fault arc detector is an electrical fire monitoring device that can quickly detect fault arcs in a circuit. Normal arcs are generated when electrical switches are opened and closed, are brief, and generally do not cause fires; fault arcs, on the other hand, are abnormal arcs generated when a line or equipment malfunctions, are longer in duration, have higher temperatures, and are more likely to cause fires.

[0003] Its working principle is to determine whether there is a fault arc by real-time monitoring and analysis of signals such as current and voltage in the circuit. When a fault arc occurs, the waveforms of current and voltage will undergo specific changes, such as sudden current changes or voltage fluctuations. The detector will then make a judgment and issue an alarm based on this.

[0004] The operation panel of existing arc fault detectors is usually an exposed structure, which is easily damaged or accidentally activated when subjected to impact. In addition, the terminal screw holes on the arc fault detectors are also exposed, allowing external dust and moisture to easily enter through the terminal screw holes, causing problems such as short circuits or oxidation of the terminals, which is detrimental to the use of the arc fault detector.

[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0006] The present invention provides a fault arc detector to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An arc fault detector includes a detector body, an operation panel at the front of the detector body, a protective cover rotatably mounted on the front of the operation panel, wiring portions at the top and bottom of the detector body, terminal screw holes on the front wall of each wiring portion, a dust cover rotatably mounted on the front of each wiring portion, a slot on the surface of each dust cover, an insert plate on the surface of each wiring portion, the insert plate being inserted into the slot, fixing plates on both sides of the operation panel, fixing holes on the surface of each fixing plate, a gear rotatably mounted on the rear wall of the protective cover, support blocks on both sides of the rear wall of the protective cover, a fixing rod slidably mounted on each support block, a rack on the inner side of each fixing rod meshing with the gear, and through holes on both sides of the protective cover, the fixing rod passing through the through holes and being inserted into the fixing holes.

[0009] Preferably, the front wall of the protective cover is provided with a screw block, which is connected to the gear.

[0010] Preferably, a torsion spring is provided between the gear and the protective cover.

[0011] Preferably, each of the insert plates has a locking block at the front, which is engaged with the front of the dust cover, and the corners of the locking block are rounded.

[0012] Preferably, both the protective cover and the dust cover are made of transparent material.

[0013] Beneficial effects

[0014] The above-mentioned technical solutions of one or more technical solutions in the fault arc detector provided by this utility model embodiment have at least one of the following technical effects:

[0015] Through the above-mentioned technical solutions, this utility model can effectively protect the operation panel by providing a protective cover at the front of the operation panel, avoiding damage or accidental touches caused by collisions; and by providing a dust cover at the front of the wiring section, it can cover the terminal screw holes to prevent dust or moisture from entering the terminal screw holes and causing short circuits or oxidation to the wiring terminals. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view of the protective cover of this utility model;

[0018] Figure 3 This is a schematic diagram of the opening structure of the protective cover and dust cover of this utility model.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Detector body; 2. Operation panel; 3. Protective cover; 4. Wiring part; 5. Terminal screw hole; 6. Dust cover; 7. Slot; 8. Insert plate; 9. Fixing plate; 10. Fixing hole; 11. Gear; 12. Support block; 13. Fixing rod; 14. Rack; 15. Tightening block; 16. Locking block. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-3 As shown, it is a structural schematic diagram of a fault arc detector according to a preferred embodiment of the present invention.

[0025] In this embodiment, a detector body 1 is included. An operation panel 2 is provided at the front of the detector body 1. A protective cover 3 is rotatably mounted on the front of the operation panel 2. The protective cover 3 effectively protects the operation panel 2 from damage or accidental activation due to impact. Wiring portions 4 are provided at both the top and bottom of the detector body 1. Terminal screw holes 5 are provided on the front wall of each wiring portion 4. A dust cover 6 is rotatably mounted on the front of each wiring portion 4. The dust cover 6 covers the terminal screw holes 5 to prevent dust or moisture from entering and causing short circuits or oxidation of the terminals. Furthermore, by rotating and opening the dust cover 6, a screwdriver can be inserted into the terminals. The operation is performed within the screw hole 5. The surface of the dust cover 6 is provided with slots 7, and the surface of the wiring part 4 is provided with insert plates 8. The insert plates 8 are inserted into the slots 7 to fix the dust cover 6. The operation panel 2 is provided with fixing plates 9 on both sides, and the surface of the fixing plates 9 is provided with fixing holes 10. The rear wall of the protective cover 3 is provided with a rotatable gear 11. The rear wall of the protective cover 3 is provided with support blocks 12 on both sides. The support blocks 12 are provided with a fixing rod 13 that slides on them. The inner side of the fixing rod 13 is provided with a rack 14, which meshes with the gear 11. The side walls of the protective cover 3 are provided with through holes, and the fixing rod 13 passes through the through holes and is inserted into the fixing holes 10. By rotating gear 11, both racks 14 move inward simultaneously, causing the fixing rod 13 to be pulled out from the fixing hole 10. This allows the protective cover 3 to be opened and the operation panel 2 to be operated. After the operation is completed, the protective cover 3 is flipped down and closed. Rotating gear 11 causes both racks 14 to move inward simultaneously, causing the fixing rod 13 to retract into the through hole. The protective cover 3 is then closed again, causing the fixing rod 13 to align with the axis of the fixing hole 10. At this point, gear 11 is rotated in the opposite direction by the torsion spring, causing both racks 14 to move outward simultaneously, allowing the fixing rod 13 to be inserted into the fixing hole 10, thus fixing the protective cover 3.

[0026] In this embodiment, the front wall of the protective cover 3 is provided with a screw block 15, which is connected to the gear 11. By screwing the screw block 15, the gear 14 is rotated.

[0027] In this embodiment, a torsion spring is provided between the gear 11 and the protective cover 3. The torsion spring provides power to the gear 11, causing the gear 11 to drive the rack 11 to move, so that the fixing rod 13 is inserted into the fixing hole 10.

[0028] In this embodiment, each insert plate 8 is provided with a locking block 16 at its front. The locking block 16 is engaged with the front of the dust cover 6, and the corners of the locking block 16 are all rounded. This structure uses the locking block 16 to limit the insertion plate 8, preventing it from easily coming out of the slot 7, thereby preventing the dust cover 6 from being easily opened and ensuring the dustproof effect.

[0029] In this embodiment, both the protective cover 3 and the dust cover 6 are made of transparent material. This allows for easy observation of the status of the operation panel 2 through the protective cover 3.

[0030] The fault arc detector of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0031] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A fault arc detector comprising a detector body, characterised in that: The front part of the detector body is provided with an operation panel, the front part of the operation panel is rotationally provided with a protective cover, the top and bottom of the detector body are provided with wiring parts, the front wall of each wiring part is provided with a terminal screw hole, the front part of each wiring part is rotationally provided with a dustproof cover, the surface of each dustproof cover is provided with a slot, the surface of each wiring part is provided with a plugboard, the plugboard is plugged into the slot, the both sides of the operation panel are provided with fixed plates, the surface of each fixed plate is provided with a fixed hole, the rear wall of the protective cover is rotationally provided with a gear, the both sides of the rear wall of the protective cover are provided with support blocks, the support blocks are slidably provided with fixed rods, the inner side of each fixed rod is provided with a gear rack, the gear racks are engaged with the gear, the both side walls of the protective cover are provided with through holes, and the fixed rods are plugged into the fixed holes through the through holes.

2. A fault arc detector according to claim 1, characterised in that: The front wall of the protective cover is rotationally provided with a twisting block, and the twisting block is connected with the gear.

3. A fault arc detector according to claim 1, characterized in that: A torsional spring is arranged between the gear and the protective cover.

4. A faulted arc detector according to claim 1, characterized in that: The front part of each plugboard is provided with a clamping block, the clamping block is clamped on the front part of the dustproof cover, and the corners of the clamping block are circular structures.

5. A fault arc detector according to claim 1, wherein: The protective cover and the dustproof cover are both transparent materials.

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