A direct current power supply fault arc detection device

Abstract

The utility model relates to arc detection technical field, and disclose a kind of DC power supply fault arc detection device, including shell, the outer wall of shell is provided with protection assembly.The DC power supply fault arc detection device is provided with pin shaft and fixed plate, the rotation connection of pin shaft and fixed plate makes protection transparent cover flexible open and close, when needing protection, protection transparent cover covers in the outside of operating panel, forms physical barrier, prevent panel damage due to collision, scratch and other external force factors, by the magnetic attraction of first installation magnet and second installation magnet, so that protection transparent cover is stable and reliable under the covering state, it will not easily shake, when needing operating panel, protection transparent cover is pulled up and opened upward, by the magnetic attraction of first fixed magnet and second fixed magnet, protection transparent cover is fixed in open state, avoid its casual shaking influence operator operation.

Description

Technical Field

[0001] This utility model relates to the field of arc detection technology, specifically to a DC power supply fault arc detection device. Background Technology

[0002] An electric arc is a gas ionization discharge phenomenon. There are two types of electric arcs in a circuit: one is the normal operating arc, which refers to the arc generated by the rotation of a motor or the opening and closing of a switch connected to the circuit; the other is the fault arc. When a fault arc is generated in a circuit, the arc will release a large amount of heat, which may ignite the surrounding flammable and explosive materials, causing a fire or even an explosion. The fault that generates a fault arc in a circuit is usually called an arc fault. In order to ensure the safety of the circuit, an arc fault detection device is needed.

[0003] The prior art patent document CN216248216U provides a fault arc detection device that can be used with both AC and DC. This device can achieve good anti-interference by setting an anti-interference device on the front side of the fault arc detection device body, thus solving the problem of poor anti-interference effect in the existing devices.

[0004] While the aforementioned existing technology can effectively prevent interference, the device still exhibits several shortcomings in practical applications. On one hand, the operation panel of the detection device is directly exposed to the external environment and is easily damaged by impacts, making it difficult to protect. On the other hand, the device is mounted on a guide rail from the side, which makes installation and disassembly inconvenient in situations where the internal space of the electrical cabinet is limited. Therefore, we need a DC power supply fault arc detection device. Utility Model Content

[0005] The purpose of this invention is to provide a DC power supply fault arc detection device, which solves the problem that the operation panel of the detection device in the background technology is directly exposed to the external environment, is easily damaged by collision, and cannot be well protected.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A DC power supply fault arc detection device includes a housing, a protective component is provided on the outer wall of the housing, and a mounting bracket is fixedly connected to the outer wall of the housing. The inner wall of the mounting bracket has a mounting groove, a guide rail is slidably connected to the inner wall of the mounting groove, and a fixing component is provided on the inner wall of the mounting bracket.

[0008] The protective assembly includes a pin, and a fixing plate is rotatably connected to the outer wall of the pin. A protective transparent cover is fixedly connected to the outer wall of the fixing plate, and a first mounting magnet is fixedly connected to the inner wall of the protective transparent cover. A first fixing magnet is fixedly connected to the top of the protective transparent cover. A mounting block is fixedly connected to the outer wall of the outer shell, and a second mounting magnet is fixedly connected to the inner wall of the mounting block. A fixing block is fixedly connected to the outer wall of the outer shell, and a second fixing magnet is fixedly connected to the inner wall of the fixing block.

[0009] The fixing component includes a slide groove, a cover plate is fixedly connected to the top of the mounting bracket by bolts, a sliding block is slidably connected to the inner wall of the slide groove, and a through hole is opened in the inner wall of the sliding block. A guide rod is slidably connected to the inner wall of the through hole, a pull rod is fixedly connected to the top of the sliding block, and a spring is fixedly connected to the top of the sliding block. A locking head is fixedly connected to the bottom of the sliding block, and a locking groove is opened in the inner wall of the guide rail.

[0010] Preferably, there are two fixing plates, and the two fixing plates are symmetrically arranged on the protective transparent cover.

[0011] Preferably, the outer wall of the first mounting magnet is magnetically attached to the outer wall of the second mounting magnet.

[0012] Preferably, the outer wall of the first fixed magnet is in contact with the outer wall of the second fixed magnet.

[0013] Preferably, one end of the pull rod passes through the cover plate and extends into the slide groove to connect with the sliding block.

[0014] Preferably, one end of the guide rod passes through the spring and the through hole, and the outer wall of the guide rod is in contact with the inner wall of the through hole.

[0015] Preferably, one end of the card head extends into the card slot, and the outer wall of the card head fits against the inner wall of the card slot.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] 1. This utility model includes a pin, a fixing plate, a protective transparent cover, a first mounting magnet, a first fixing magnet, a mounting block, a second mounting magnet, a fixing block, and a second fixing magnet. The protective transparent cover can be flexibly opened and closed through the rotational connection of the pin and the fixing plate. When protection is needed, the protective transparent cover covers the outside of the operating panel, forming a physical barrier to prevent damage to the panel due to external forces such as collisions and scratches. The first and second mounting magnets are magnetically attached, making the protective transparent cover stable and reliable in the covered state and preventing it from shaking easily. When the operating panel is needed, the protective transparent cover is pulled up to open, and the first and second fixing magnets are magnetically attached to fix the protective transparent cover in the open state, preventing it from shaking and affecting the operator's operation.

[0018] 2. This utility model is equipped with a sliding groove, a cover plate, a sliding block, a through hole, a guide rod, a pull rod, a spring, a clip head, and a slot. During installation, pull the pull rod to move the clip head up, align the mounting bracket with the guide rail, and release the pull rod to allow the clip head to engage with the slot, completing the installation. During disassembly, pull the pull rod to disengage the clip head from the slot, allowing the device to be easily removed from the guide rail. The operation is simple, overcoming the inconvenience of traditional side installation, and is suitable for scenarios with limited internal space in electrical cabinets, improving the efficiency of installation and disassembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the outer shell and protective transparent cover of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0023] The components are as follows: 1. Outer shell; 2. Protective components; 201. Pin; 202. Fixing plate; 203. Protective transparent cover; 204. First mounting magnet; 205. First fixing magnet; 206. Mounting block; 207. Second mounting magnet; 208. Fixing block; 209. Second fixing magnet; 3. Mounting bracket; 4. Mounting groove; 5. Guide rail; 6. Fixing components; 601. Slide groove; 602. Cover plate; 603. Sliding block; 604. Through hole; 605. Guide rod; 606. Pull rod; 607. Spring; 608. Clip; 609. Slot. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4As shown, a DC power supply fault arc detection device includes a housing 1, a protective component 2 on the outer wall of the housing 1, and a mounting bracket 3 fixedly connected to the outer wall of the housing 1. The inner wall of the mounting bracket 3 has a mounting groove 4, and a guide rail 5 is slidably connected to the inner wall of the mounting groove 4. A fixing component 6 is provided on the inner wall of the mounting bracket 3. The protective component 2 includes a pin 201, and a fixing plate 202 is rotatably connected to the outer wall of the pin 201. A protective transparent cover 203 is fixedly connected to the outer wall of the fixing plate 202, and a first mounting magnet 204 is fixedly connected to the inner wall of the protective transparent cover 203. A first fixing magnet 205 is fixedly connected to the top of the protective transparent cover 203. A mounting block 206 is fixedly connected to the outer wall of the housing 1. A second mounting magnet 207 is fixedly connected to the inner wall of mounting block 206, a fixing block 208 is fixedly connected to the outer wall of outer shell 1, and a second fixing magnet 209 is fixedly connected to the inner wall of fixing block 208; the fixing component 6 includes a slide groove 601, a cover plate 602 is fixedly connected to the top of mounting bracket 3 by bolts, a sliding block 603 is slidably connected to the inner wall of slide groove 601, a through hole 604 is opened on the inner wall of sliding block 603, a guide rod 605 is slidably connected to the inner wall of through hole 604, a pull rod 606 is fixedly connected to the top of sliding block 603, a spring 607 is fixedly connected to the top of sliding block 603, a clip head 608 is fixedly connected to the bottom of sliding block 603, and a slot 609 is opened on the inner wall of guide rail 5.

[0026] Through the above technical solution, the rotatable connection between the pin 201 and the fixing plate 202 allows the protective transparent cover 203 to open and close flexibly. When protection is needed, the protective transparent cover 203 covers the outside of the operation panel, forming a physical barrier to prevent damage to the panel due to external forces such as collisions and scratches. The magnetic attraction between the first mounting magnet 204 and the second mounting magnet 207 ensures that the protective transparent cover 203 is stable and reliable in the covered state, preventing easy shaking. When the operation panel is needed, the protective transparent cover 203 is pulled up and opened, and the first fixing magnet 205 connects with the second fixing plate 202. The fixed magnet 209 magnetically attaches and secures the protective transparent cover 203 in the open position, preventing it from shaking and affecting the operator's work. During installation, pull the lever 606 to move the clip 608 upward, align the mounting bracket 3 with the guide rail 5, and release the lever 606 to allow the clip 608 to engage with the slot 609, completing the installation. During disassembly, pull the lever 606 to disengage the clip 608 from the slot 609, allowing the device to be easily removed from the guide rail 5. The operation is simple, overcoming the inconvenience of traditional side installation, and is suitable for scenarios with limited internal space in electrical cabinets, improving the efficiency of installation and disassembly.

[0027] Specifically, there are two fixing plates 202, and the two fixing plates 202 are symmetrically arranged on the protective transparent cover 203.

[0028] With the above technical solution, there are two pins 201, which are symmetrically fixed on the outer shell 1. When the protective transparent cover 203 is rotated, the protective transparent cover 203 drives the two fixing plates 202 to rotate on the two pins 201 respectively, which enhances the stability.

[0029] Specifically, the outer wall of the first mounting magnet 204 is magnetically attached to the outer wall of the second mounting magnet 207.

[0030] With the above technical solution, the protective transparent cover 203 is placed in front of the operation panel. The first mounting magnet 204 on the protective transparent cover 203 and the second mounting magnet 207 on the mounting block 206 are magnetically attached to each other, so that the protective transparent cover 203 can be magnetically fixed and is convenient to block the operation panel for protection.

[0031] Specifically, the outer wall of the first fixed magnet 205 is magnetically attached to the outer wall of the second fixed magnet 209.

[0032] With the above technical solution, when the operator needs to operate the control panel, by pulling the protective transparent cover 203 upward, the first fixing magnet 205 on the protective transparent cover 203 and the second fixing magnet 209 on the fixing block 208 magnetically attach to each other, thus magnetically fixing the protective transparent cover 203 and preventing the protective transparent cover 203 from falling down and affecting the operator's operation.

[0033] Specifically, one end of the pull rod 606 passes through the cover plate 602 and extends into the slide groove 601 to connect with the sliding block 603.

[0034] With the above technical solution, the slide 601 is opened in the mounting bracket 3. When the pull rod 606 is pulled upward, the pull rod 606 drives the sliding block 603 to slide in the slide 601. The outer wall of the sliding block 603 fits against the inner wall of the slide 601, which facilitates the sliding block 603 to slide in the slide 601.

[0035] Specifically, one end of the guide rod 605 passes through the spring 607 and the through hole 604, and the outer wall of the guide rod 605 is in contact with the inner wall of the through hole 604.

[0036] With the above technical solution, when the sliding block 603 moves, the sliding block 603 can slide well on the guide rod 605 through the through hole 604. The guide rod 605 plays a guiding role. When the sliding block 603 moves upward, it will push the spring 607 to contract.

[0037] Specifically, one end of the card head 608 extends into the card slot 609, and the outer wall of the card head 608 fits against the inner wall of the card slot 609.

[0038] Through the above technical solution, the clip 608 is inserted into the slot 609, which allows the mounting bracket 3 to be fixed on the guide rail 5, thereby completing the assembly of the arc detection device.

[0039] In use, the device is first installed and fixed. By pulling the lever 606 upward, the lever 606 drives the sliding block 603 to slide upward in the groove 601. The sliding block 603 slides along the guide rod 605 through the through hole 604. The sliding block 603 moves upward, compressing the spring 607 to store elastic potential energy. The movement of the sliding block 603 drives the locking head 608 to move upward, aligning the mounting groove 4 on the inner wall of the mounting bracket 3 with the guide rail 5 for assembly. After the position is calibrated, the lever 606 is released, the spring 607 releases its elastic potential energy, pushing the sliding block 603 downward to reset, and the locking head 608 engages in the slot 609. The tight fit between the locking head 608 and the slot 609 securely fixes the mounting bracket 3 to the guide rail 5, thus completing the installation of the DC power supply fault arc detection device. When the device is not in operation, the protective transparent cover 203 is rotated, causing the protective transparent cover 203 to move the fixing plate 202 in the pin position. Rotating on shaft 201 lowers the protective transparent cover 203, covering the outside of the control panel. The first mounting magnet 204 on the protective transparent cover 203 attracts the second mounting magnet 207 on the mounting block 206, magnetically securing the protective transparent cover 203 to the front of the control panel, forming a physical barrier to resist external impacts such as collisions and scratches, effectively protecting the control panel. When the operator needs to operate the control panel, pulling the protective transparent cover 203 upwards causes the first fixing magnet 205 on the protective transparent cover 203 to magnetically engage with the second fixing magnet 209 on the fixing block 208, fixing the protective transparent cover 203 in the open state and preventing it from shaking and affecting the operator's operation. This completes the entire process. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0040] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DC power supply fault arc detection device, comprising a housing (1), characterized in that: The outer wall of the outer shell (1) is provided with a protective component (2), and the outer wall of the outer shell (1) is fixedly connected with a mounting bracket (3). The inner wall of the mounting bracket (3) is provided with a mounting groove (4), the inner wall of the mounting groove (4) is slidably connected with a guide rail (5), and the inner wall of the mounting bracket (3) is provided with a fixing component (6). The protective component (2) includes a pin (201), and a fixing plate (202) is rotatably connected to the outer wall of the pin (201). A protective transparent cover (203) is fixedly connected to the outer wall of the fixing plate (202), and a first mounting magnet (204) is fixedly connected to the inner wall of the protective transparent cover (203). A first fixing magnet (205) is fixedly connected to the top of the protective transparent cover (203). A mounting block (206) is fixedly connected to the outer wall of the outer shell (1), and a second mounting magnet (207) is fixedly connected to the inner wall of the mounting block (206). A fixing block (208) is fixedly connected to the outer wall of the outer shell (1), and a second fixing magnet (209) is fixedly connected to the inner wall of the fixing block (208). The fixing component (6) includes a slide groove (601), and a cover plate (602) is fixedly connected to the top of the mounting bracket (3) by bolts. A sliding block (603) is slidably connected to the inner wall of the slide groove (601), and a through hole (604) is opened on the inner wall of the sliding block (603). A guide rod (605) is slidably connected to the inner wall of the through hole (604). A pull rod (606) is fixedly connected to the top of the sliding block (603), and a spring (607) is fixedly connected to the top of the sliding block (603). A clip (608) is fixedly connected to the bottom of the sliding block (603), and a slot (609) is opened on the inner wall of the guide rail (5).

2. The DC power supply fault arc detection device according to claim 1, characterized in that: The number of fixing plates (202) is two, and the two fixing plates (202) are symmetrically arranged on the protective transparent cover (203).

3. The DC power supply fault arc detection device according to claim 1, characterized in that: The outer wall of the first mounting magnet (204) is magnetically attached to the outer wall of the second mounting magnet (207).

4. The DC power supply fault arc detection device according to claim 1, characterized in that: The outer wall of the first fixed magnet (205) is in contact with the outer wall magnet of the second fixed magnet (209).

5. The DC power supply fault arc detection device according to claim 1, characterized in that: One end of the pull rod (606) passes through the cover plate (602) and extends into the slide groove (601) to connect with the sliding block (603).

6. The DC power supply fault arc detection device according to claim 1, characterized in that: One end of the guide rod (605) passes through the spring (607) and the through hole (604), and the outer wall of the guide rod (605) is in contact with the inner wall of the through hole (604).

7. The DC power supply fault arc detection device according to claim 1, characterized in that: One end of the card head (608) extends into the card slot (609), and the outer wall of the card head (608) fits against the inner wall of the card slot (609).

Images