A high-voltage switch position indicator with quick plug-in

Abstract

This utility model discloses a quick-pluggable high-voltage switch position status indicator, belonging to the technical field of high-voltage switchgear. It includes an indicator lamp holder, an indicator lamp core, and a fixing component. The indicator lamp holder and the indicator lamp core are detachably connected. The indicator lamp holder has terminals for connection to power supply wires. When connected to the indicator lamp core, the indicator lamp core and the indicator lamp holder are simultaneously electrically connected. The fixing component secures the connected indicator lamp core and indicator lamp holder to the switch cabinet. This quick-pluggable high-voltage switch position status indicator effectively solves the problems of existing switch position indicators requiring power outages for replacement, which consumes a lot of time and reduces the maintenance efficiency of power systems.

Description

Technical Field

[0001] This utility model relates to the field of high voltage switchgear technology, specifically to a quick-pluggable high voltage switch position status indicator. Background Technology

[0002] In power systems, high-voltage switchgear is a critical piece of equipment, and its operating status directly affects the stability and security of the power system. Switch position indicators, as an important component of the switchgear, can visually display the closed and open status of the switch, which is crucial for operation and maintenance personnel. However, existing indicators are prone to damage due to being constantly energized, and the replacement process is complex, posing numerous inconveniences and risks.

[0003] Existing problems include: 1. The indicator is easily damaged. Due to the constant power supply and the influence of environmental factors (such as temperature and humidity), the indicator has a limited lifespan and needs to be replaced periodically; 2. Replacement is complex. Currently available switch position indicators require power outages for replacement, which not only affects the normal operation of the power system but also increases maintenance costs; 3. Maintenance efficiency is low. Replacing the indicator during a power outage consumes a significant amount of time, reducing the maintenance efficiency of the power system. To solve these problems, a high-voltage switch position status indicator that allows for quick plugging and unplugging is designed, enabling rapid installation and maintenance without power interruption, which has significant practical significance and application value. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a quick-pluggable high-voltage switch position status indicator, aiming to solve the problems of existing switch position indicators requiring power outages for replacement, consuming significant time, and reducing the maintenance efficiency of power systems. To achieve the above objective, this utility model provides the following technical solution: A quick-pluggable high-voltage switch position status indicator includes an indicator lamp holder, an indicator lamp core, and a fixing component; the indicator lamp holder and the indicator lamp core are detachably connected; the indicator lamp holder is provided with a wiring terminal for connection to a power supply wire; when the indicator lamp core is connected, the indicator lamp core and the indicator lamp holder are simultaneously electrically connected; the fixing component is used to fix the connected indicator lamp core and indicator lamp holder to the switch cabinet.

[0005] Furthermore, the indicator lamp holder includes a base housing; the base housing is cylindrical with an opening on one side wall; the indicator lamp wick includes a lamp wick housing; the lamp wick housing is cylindrical like the base housing, but its diameter is slightly smaller than that of the base housing; one side wall of the lamp wick housing is provided with an elastic buckle; the lamp wick housing is inserted from the bottom of the base housing and locked in the opening by the elastic buckle.

[0006] Furthermore, the bottom of the lamp core housing is provided with a mounting base; the mounting base is provided with two limiting holes of different sizes; the bottom of the base housing is provided with two limiting blocks of different sizes, which respectively fit into the two limiting holes.

[0007] Furthermore, the indicator lamp core also includes a position indicator LED and a PCB male connector; the position indicator LED is fixed in the mounting base; the bottom of the PCB male connector is electrically connected to the position indicator LED; the top of the PCB male connector penetrates through the lamp core housing.

[0008] Furthermore, the indicator lamp holder also includes a PCB female connector; the PCB female connector is fixed inside the base housing and electrically connected to the wiring terminal; a through hole is provided on the upper side of the base housing; the plug portion of the wiring terminal passes through the through hole and is located on the outside of the base housing, facilitating connection with the power supply wire.

[0009] Furthermore, when the indicator lamp core is connected to the indicator lamp holder, the PCB male connector and the PCB female connector are connected by metal.

[0010] Furthermore, the PCB female connector is provided with a spring clip; when the PCB male connector is inserted into the PCB female connector, the spring clip can firmly clamp the pins of the PCB male connector, reducing the risk of loosening.

[0011] Furthermore, guide grooves are provided on both sides of the inner wall of the lamp core housing; the two sides of the PCB male connector cooperate with the guide grooves to ensure that the PCB male connector and the PCB female connector are connected.

[0012] Furthermore, the fixing component includes a fixing cylinder and a fixing nut; the fixing cylinder is movably disposed on the outer wall of the base housing and covers the opening; the bottom of the fixing cylinder can be supported on the two limiting blocks; the middle of the outer wall of the base housing is provided with an external thread; the fixing nut is engaged with the external thread; by tightening the fixing nut, the fixing cylinder is clamped onto the switch cabinet door.

[0013] Furthermore, when the fixing nut is unlocked, the fixing cylinder and the fixing nut can move relative to the base housing until they contact the wiring terminal, at which point the opening on the base housing is exposed.

[0014] The beneficial effects of this utility model are: This utility model discloses a quick-pluggable high-voltage switch position status indicator. By setting the indicator lamp holder and indicator lamp core to a snap-fit ​​connection, it enables quick installation and disassembly, improving replacement efficiency. The setting of the limit block and limit hole ensures that the connection can be made in one go when inserted, further improving installation efficiency. Electrical conduction is achieved by the PCB male connector and PCB female connector inside the base shell. When replacing, there is no need to disconnect the wires from the terminals. You only need to press the snap to remove the indicator lamp core. The operation process is isolated by the plastic base shell to avoid the risk of electric shock. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model installed on the cabinet door; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the indicator lamp core structure of this utility model; Figure 4 This is a schematic diagram of the lamp wick housing structure of this utility model; Figure 5 This is a schematic diagram of the base shell structure of this utility model; Figure 6 This is a schematic diagram of the PCB male connector and PCB female connector structure of this utility model; Figure 7 This is a schematic diagram of the position indicator LED structure of this utility model; The attached diagram is labeled as follows: 1. Indicator lamp holder; 2. Indicator lamp wick; 3. Wiring terminal; 4. Base housing; 5. Opening; 6. Lamp wick housing; 7. Elastic buckle; 8. Mounting base; 9. Limiting hole; 10. Limiting block; 11. Position indicator LED; 12. PCB male connector; 13. PCB female connector; 14. Guide groove; 15. Fixing cylinder; 16. Fixing nut. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0019] In the description of this utility model, "multiple" means two or more.

[0020] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0021] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0022] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Example See attached Figures 1-7This embodiment provides a quick-pluggable high-voltage switch position status indicator, including an indicator lamp holder 1, an indicator lamp wick 2, and a fixing component. The indicator lamp holder 1 and the indicator lamp wick 2 are connected via a snap-fit ​​structure for quick installation and removal, ensuring electrical continuity during connection. The indicator lamp holder 1 is equipped with a terminal block 3 for connecting wires inside the switch cabinet. The continuity of the circuit inside the switch cabinet is determined by the display status of the indicator lamp wick 2. The connected indicator lamp wick 2 and indicator lamp holder 1 are fixed to a pre-drilled hole on the switch cabinet door using the fixing component. The position indicator LED 11 on the indicator lamp wick 2 is located outside the switch cabinet door, while the terminal block 3 on the indicator lamp holder 1 is located inside the switch cabinet door.

[0024] In this embodiment, considering the insulation requirements of the high-voltage switchgear (to avoid leakage risk) and environmental adaptability (to withstand temperature fluctuations and humidity changes), the base shell 4 of the indicator lamp holder 1 and the lamp core shell 6 of the indicator lamp core 2 are both made of materials with good insulation performance, impact resistance, and high temperature resistance, such as ABS engineering plastic. The indicator lamp holder 1 and the indicator lamp core 2 adopt a dual positioning structure of "snap-on + limit", which ensures the stability after connection and avoids misjudgment of direction during assembly. The base shell 4 of the indicator lamp holder 1 is designed as a hollow cylindrical structure; the lamp core shell 6 of the indicator lamp core 2 is also cylindrical, with an outer diameter slightly smaller than the inner diameter of the base shell 4, forming a clearance fit, which ensures smooth insertion and avoids radial wobble after insertion. The lamp wick housing 6 has an integrally injection-molded elastic buckle 7 on its side wall. The elastic buckle 7 is made of a material with good elastic recovery, which can retract inward when force is applied and automatically return to its original position when no force is applied. A corresponding opening 5 is made on the side wall of the base housing 4. When the lamp wick housing 6 is inserted from the bottom of the base housing 4 to the preset position, the elastic buckle 7 pops out under its own elastic force and embeds into the opening 5, forming a mechanical lock. At this point, a "click" sound indicates that the lock is in place. When the lamp wick needs to be replaced, no tools are required. Simply press the elastic buckle 7 inside the opening 5 with your finger to retract and disengage it from the opening 5, and simultaneously pull out the lamp wick housing 6 to complete the separation. The entire unlocking process is simple and easy to operate, avoiding the cumbersome steps of disassembling traditional indicators.

[0025] In this embodiment, the bottom of the lamp wick housing 6 is provided with a mounting base 8, which is a rectangular structure. The mounting base 8 has two limiting holes 9 of different sizes and shapes. The bottom of the base housing 4 is provided with two matching limiting blocks 10. Only when the limiting holes 9 and the limiting blocks 10 correspond one-to-one can the lamp wick housing 6 be fully inserted into the base housing 4. Pre-observation before installation can achieve accurate connection in one go.

[0026] In this embodiment, the electrical connection is achieved through the metal contact between the PCB male connector 12 and the PCB female connector 13, reducing wiring failure points and providing structural support for "quick plug-and-play". The indicator lamp 2 displays the switch position status through the position indicator LED 11, and needs to achieve a stable electrical connection with the indicator lamp holder 1. The position indicator LED 11 integrates two LEDs, a red LED to indicate the "closed" state and a green LED to indicate the "open" state. Both LEDs are off when the switch is under maintenance, which conforms to the intuitive judgment habits of maintenance personnel. The position indicator LED 11 is fixed in the mounting base 8 at the bottom of the lamp wick housing 6 and is electrically connected to the PCB male connector 12 through wires. The PCB male connector 12 is a long strip-shaped substrate structure with a rectangular block at the bottom that matches the mounting base 8 and metal pins extending from the top. The PCB male connector 12 is fixed to the lamp wick housing 6 through the guide groove 14, which further positions the PCB male connector 12 and the PCB female connector 13 to ensure accurate connection and prevent displacement during use that could affect the electrical connection.

[0027] In this embodiment, a PCB female connector 13 is fixed inside the base housing 4. The PCB female connector 13 and the terminal block 3 are soldered together with wires to form a complete power supply circuit. The PCB female connector 13 is provided with an interface that is compatible with the pins of the PCB male connector 12. When the indicator lamp core 2 is inserted into the indicator lamp holder 1, the pins of the PCB male connector 12 are in contact with the interface of the PCB female connector 13 through the positioning installation of the limiting block 10 and the guide groove 14, realizing electrical conduction and powering the position indicator LED 11. In order to improve the contact stability, a spring sheet is added inside the interface of the PCB female connector 13, which can tightly clamp the pins of the PCB male connector 12, reduce the risk of loosening, and avoid LED flickering due to poor contact.

[0028] In this embodiment, a through hole is opened on the side wall of the base housing 4, and the socket of the terminal block 3 passes through the through hole and is exposed on the outside of the base housing 4, which facilitates the connection of wires by maintenance personnel. The terminal block 3 is made of brass (tin-plated on the surface to prevent oxidation) and can be connected to 220V voltage, which is compatible with the conventional power supply system of high voltage switchgear.

[0029] In this embodiment, the fixing component includes a fixing cylinder 15 and a fixing nut 16, which can fix the assembled indicator lamp holder 1 and indicator lamp wick 2 as a whole to the switch cabinet door. The base housing 4 has an external thread in the middle, which cooperates with the fixing nut 16 in the fixing component; the fixing cylinder 15 can slide along the outer wall of the base housing 4, and is tightened by the fixing nut 16 during fixing, so that the fixing nut 16 and the fixing cylinder 15 respectively fit against the inner and outer sides of the preset hole of the switch cabinet door to achieve clamping and fixing. To further improve insulation, the fixing nut 16 is made of plastic to improve insulation.

[0030] Initial assembly steps: By using the positioning relationship between the limiting hole 9 and the limiting block 10, and the cooperation between the PCB male connector 12 and the guide groove 14, insert the indicator lamp core 2 into the indicator lamp holder 1 until you hear the "click" sound of the elastic buckle 7 locking, thus completing the assembly. Then, slide the fixing cylinder 15 from one side of the terminal block 3 and support it on the limiting block 10 of the base housing 4. Turn off the power and open the switch cabinet door. Insert the entire assembly with one end of the terminal block 3 into the preset opening 5 of the switch cabinet door until part of the external thread enters the switch cabinet. Then, slide the fixing nut 16 from one end of the terminal block 3 and tighten it with the external thread. Clamp it with the fixing cylinder 15 and the fixing nut 16. Connect the 220V power supply wire to the terminal block 3. Close the switch cabinet door and turn on the power. At this time, the position indicator LED 11 displays the corresponding color according to the switch position.

[0031] Steps for replacing the bulb: First, without disconnecting the switch cabinet power supply, open the switch cabinet door, tighten the fixing nut 16, and push the whole unit outward along the preset hole of the switch cabinet. At this time, the fixing cylinder 15 is relatively away from the limiting block 10 on the base housing 4 until the elastic buckle 7 and opening 5 on the side wall of the base housing 4 are exposed. At this time, the fixing nut 16 is limited on the base housing 4 by the power supply wire and the switch cabinet door, and there is no need to disconnect the power supply wire from the terminal 3. The second step is to press the elastic buckle 7 inside the opening 5 with your finger, and at the same time pull out the old indicator lamp wick 2. The third step is to insert the new indicator lamp core 2 into the indicator lamp holder 1 according to the limit positioning until the elastic buckle 7 is locked. Then slide the whole body back to its original position, tighten the fixing nut 16, and the replacement is completed.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A quick-pluggable high-voltage switch position status indicator, characterized in that: Includes indicator lamp holder (1), indicator lamp core (2) and fastener; The indicator lamp holder (1) and the indicator lamp core (2) are detachably connected; the indicator lamp holder (1) is provided with a wiring terminal (3) connected to the power supply wire; the indicator lamp core (2) is provided with a connection between the indicator lamp core (2) and the indicator lamp holder (1) when connected; the fixing member is used to fix the connected indicator lamp core (2) and indicator lamp holder (1) on the switch cabinet door.

2. The quick-pluggable high-voltage switch position status indicator according to claim 1, characterized in that: The indicator lamp holder (1) includes a base housing (4); the base housing (4) is cylindrical and has an opening (5) on one side wall; the indicator lamp wick (2) includes a wick housing (6); the wick housing (6) is cylindrical like the base housing (4) but with a diameter slightly smaller than the base housing (4); one side wall of the wick housing (6) is provided with an elastic buckle (7); the wick housing (6) is inserted from the bottom of the base housing (4) and locked in the opening (5) by the elastic buckle (7).

3. The quick-pluggable high-voltage switch position status indicator according to claim 2, characterized in that: The lamp core housing (6) has a mounting base (8) at the bottom; the mounting base (8) has two limiting holes (9) of different sizes; the base housing (4) has two limiting blocks (10) of different sizes at the bottom, which respectively fit into the two limiting holes (9).

4. A quick-pluggable high-voltage switch position status indicator according to claim 3, characterized in that: The indicator lamp core (2) also includes a position indicator LED (11) and a PCB male connector (12); the position indicator LED (11) is fixed in the mounting base (8); the bottom of the PCB male connector (12) is electrically connected to the position indicator LED (11); the top of the PCB male connector (12) penetrates the lamp core housing (6).

5. A quick-pluggable high-voltage switch position status indicator according to claim 4, characterized in that: The indicator lamp holder (1) also includes a PCB female connector (13); the PCB female connector (13) is fixed inside the base housing (4) and electrically connected to the wiring terminal (3); the upper side of the base housing (4) is provided with a through hole; the plug portion of the wiring terminal (3) passes through the through hole and is located outside the base housing (4), which facilitates connection with the power supply wire.

6. A quick-pluggable high-voltage switch position status indicator according to claim 5, characterized in that: When the indicator lamp core (2) is connected to the indicator lamp holder (1), the PCB male connector (12) and the PCB female connector (13) are connected by metal.

7. A quick-pluggable high-voltage switch position status indicator according to claim 5, characterized in that: The PCB female connector (13) is provided with a spring sheet; when the PCB male connector (12) is inserted into the PCB female connector (13), the spring sheet can firmly clamp the pins of the PCB male connector (12) to reduce the risk of loosening.

8. A quick-pluggable high-voltage switch position status indicator according to claim 5, characterized in that: The inner wall of the lamp core housing (6) is provided with guide grooves (14) on both sides; the two sides of the PCB male connector (12) cooperate with the guide grooves (14) to ensure that the PCB male connector (12) and the PCB female connector (13) are connected.

9. A quick-pluggable high-voltage switch position status indicator according to claim 3, characterized in that: The fixing component includes a fixing cylinder (15) and a fixing nut (16); the fixing cylinder (15) is movably disposed on the outer wall of the base housing (4) and covers the opening (5); the bottom of the fixing cylinder (15) can be supported on the two limiting blocks (10); the outer wall of the base housing (4) is provided with an external thread; the fixing nut (16) is fitted on the external thread; by tightening the fixing nut (16), the fixing cylinder (15) is clamped on the switch cabinet door.

10. A quick-pluggable high-voltage switch position status indicator according to claim 9, characterized in that: When the fixing nut (16) is unlocked, the fixing cylinder (15) and the fixing nut (16) can move relative to the base housing (4) to contact the wiring terminal (3), at which time the opening (5) on the base housing (4) is exposed.

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