Looped netowrk cabinet blade detection module

Abstract

The utility model discloses a kind of ring main unit knife detection module, comprising: shell, sensing component and sensor component, shell is installed in ring network cabinet equipment ontology, sensing component includes mounting block and inductor, mounting block is at least partially located in shell, mounting block is connected with ring network cabinet knife and rotates synchronously with ring network cabinet knife, inductor is embedded in mounting block and can rotate synchronously with mounting block, sensor component is located in shell, sensor component includes the multiple sensors of sequentially interval arrangement along the rotation track of mounting block, inductor can rotate to the inductive position corresponding with any sensor with mounting block to induct sensor with mounting block, determine the on-off state of ring network cabinet knife and ground knife by the state where multiple sensors are located.The utility model technical scheme compact structure and strong adaptability, adapt to the installation space of ring network cabinet narrow, be conducive to forming double confirmation detection mechanism, real-time accurate monitoring the on-off state of ring network cabinet knife and ground knife, guarantee ring network cabinet operation safety.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit equipment technology, and in particular to a ring main unit switch detection module. Background Technology

[0002] With the large-scale construction of high-rise buildings in cities, substations are often located on the ground floor. Ring main units (RMUs) are widely used in power distribution systems due to their advantages such as miniaturization, simple structure, low maintenance, and low operating costs. However, the safe operation of RMUs is directly related to the stability of the entire power distribution system, and the detection of the open / closed status of their switches and grounding switches is a critical link in safety management. In existing technologies, the open / closed status of RMU switches and grounding switches relies solely on a single built-in detection method. Once this detection method fails, it is impossible to accurately determine the equipment status in a timely manner, posing a significant threat to the safe operation of the equipment. Furthermore, due to the miniaturized design of RMUs, the internal installation space is very limited, making it difficult to adapt and install external detection units. Utility Model Content

[0003] This utility model provides a ring main unit switch detection module with a compact structure and strong adaptability. It is suitable for the narrow installation space of the ring main unit, which is conducive to the formation of a dual confirmation detection mechanism. It can monitor the opening and closing status of the switch and grounding switch of the ring main unit in real time and accurately, so as to ensure the safe operation of the ring main unit.

[0004] This utility model provides a ring main unit switch detection module, including: a housing, a sensing component, and a sensor assembly. The housing is installed on the ring main unit equipment body. The sensing component includes a mounting block and a sensing element. The mounting block is at least partially located inside the housing. The mounting block is connected to the ring main unit switch and rotates synchronously with the ring main unit switch. The sensing element is embedded in the mounting block and can rotate synchronously with the mounting block. The sensor assembly is located inside the housing and includes multiple sensors arranged at intervals along the rotation trajectory of the mounting block. The sensing element can rotate with the mounting block to a sensing position corresponding to any sensor to sense the sensor. The open / closed state of the ring main unit switch and grounding switch is determined by the state of the multiple sensors.

[0005] This utility model's technical solution combines a sensing component and a sensor component. The sensing component includes a mounting block and a sensing element embedded within the mounting block. The mounting block is connected to the ring main unit's switch. Both the mounting block and the sensing element rotate synchronously with the ring main unit's switch. The sensor component includes multiple sensors arranged at intervals along the rotation trajectory of the mounting block. The sensing element can rotate with the mounting block to a sensing position corresponding to any sensor to sense the sensor. When the sensing element rotates with the mounting block to the sensing position corresponding to any sensor, it triggers a sensor change. The open / closed state of the switch and grounding switch is determined by the states of the multiple sensors. This utility model's technical solution combines the sensing component and the sensor component, resulting in a compact structure with strong adaptability. It can adapt to the narrow installation space of the ring main unit, which is conducive to forming a dual-confirmation detection mechanism. This avoids the problem of inaccurate detection caused by the failure of its own single detection method, and is conducive to real-time and accurate monitoring of the open / closed state of the ring main unit's switch and grounding switch, ensuring the safe operation of the ring main unit.

[0006] According to the aforementioned embodiments of this utility model, the sensor assembly includes a first sensor, a second sensor, and a third sensor that are arc-shaped distributed along the rotation trajectory of the mounting block. After the sensing element rotates at a preset angle with the mounting block, it can respectively sense and cooperate with the first sensor, the second sensor, or the third sensor to trigger the state change of the corresponding sensor. The first sensor, the second sensor, and the third sensor are respectively used to detect the closed state, the open state, and the closed state of the grounding switch of the ring main unit.

[0007] According to the aforementioned embodiments of this utility model, the ring main unit switch detection module further includes a prompting module. When the first sensor, the second sensor, and the third sensor are simultaneously in the same state, the prompting module issues an abnormal state prompt. This utility model's technical solution, by setting up a prompting module that issues an abnormal state prompt when the first sensor, the second sensor, and the third sensor are simultaneously in the same state, facilitates timely troubleshooting by staff, avoids safety accidents caused by abnormal equipment status, and further improves the operational safety of the ring main unit.

[0008] According to the aforementioned embodiments of this utility model, the housing is further provided with mounting holes for installing sensors. Each mounting hole includes multiple sets of adjustment holes, which are arranged at intervals along the rotation trajectory of the mounting block. The sensor is connected to any of the adjustment holes to adjust the installation angle of the sensor relative to the housing. This utility model's technical solution, by providing mounting holes for sensors on the housing, with each mounting hole including multiple sets of adjustment holes, allows for flexible adjustment of the sensor's installation angle according to the rotation stroke of different models of ring main unit switches. This facilitates compatibility with different models of ring main unit switches and provides strong versatility. Simultaneously, it ensures precise alignment between the sensing element and the sensor, improving adaptability.

[0009] According to the aforementioned embodiments of this utility model, the mounting block includes a first part and a second part connected to each other. The first part is located inside the housing, and the sensing element is embedded in the first part. The second part is located outside the housing and connected to the ring main unit switch. A cross-shaped connecting groove is provided at one end of the second part near the ring main unit switch. The cross-shaped connecting groove is adapted to and engages with the cross structure at the end of the ring main unit switch, allowing the mounting block to rotate synchronously with the ring main unit switch. This utility model's technical solution, by providing a cross-shaped connecting groove that is adapted to and engages with the cross structure at the end of the ring main unit switch, enables the mounting block to rotate synchronously with the ring main unit switch, thereby ensuring the consistency of the movement state of the sensing element and the switch.

[0010] According to the aforementioned embodiments of this utility model, the first part has a groove on its side for placing the sensor, and the sensor is embedded in the groove using an adhesive or sealing material. In this utility model, the sensor is embedded in the groove using an adhesive or sealing material, achieving fixed installation and sealing of the sensor, thus preventing the external environment from affecting the performance of the sensor.

[0011] According to the aforementioned embodiment of this utility model, the second part is further provided with a through hole on its side. The through hole extends radially along the second part, and a mounting member is provided inside the through hole to limit the radial displacement of the mounting block. This utility model's technical solution, by providing a mounting member inside the through hole extending radially along the second part, allows the mounting block to further limit its radial displacement, permitting only rotation around its own axis, ensuring the stability of the connection between the mounting block and the switch, and preventing relative displacement caused by vibration.

[0012] According to any of the foregoing embodiments of this utility model, the housing includes a first fastener and a second fastener protruding from the outside of the housing. The ring main unit body has a first connecting hole and a second connecting hole corresponding to the first fastener and the second fastener, respectively. The first fastener and the second fastener are respectively matched and connected to the first connecting hole and the second connecting hole to install the housing onto the ring main unit body. This utility model's technical solution, by providing a first fastener and a second fastener on the housing, and providing a first connecting hole and a second connecting hole corresponding to the first fastener and the second fastener, respectively, and having the first fastener and the second fastener respectively matched and connected to the first connecting hole and the second connecting hole to install the housing onto the ring main unit body, helps to improve the stability of the housing relative to the ring main unit body and avoids displacement caused by vibration.

[0013] According to any of the foregoing embodiments of this utility model, the housing further includes a protective cover plate, which is detachably connected to the housing via a third fastener to close the inner cavity of the housing. The technical solution of this utility model, by providing a protective cover plate, forms a sealed inner cavity after the protective cover plate and the housing are closed, thereby protecting the internal sensor components from interference from external environmental factors such as dust and humidity.

[0014] According to any of the foregoing embodiments of this utility model, a wire outlet hole is also provided on one side of the housing, and the signal wires of the sensor extend through the wire outlet hole to the outside of the ring network cabinet.

[0015] This utility model combines the sensing component and sensor component, resulting in a compact and highly adaptable structure. It can fit into the limited installation space of ring main units (RMMs), facilitating a dual-confirmation detection mechanism and avoiding inaccurate detection caused by the failure of a single built-in detection method. This allows for real-time and accurate monitoring of the opening and closing status of the RMM switch and grounding switch, ensuring the safe operation of the RMM. By incorporating an alert module, when the first, second, and third sensors are simultaneously in the same state, the alert module issues an abnormal status warning, facilitating timely troubleshooting by staff and preventing safety accidents caused by abnormal equipment status, further enhancing the safety of RMM operation. The sensing element is embedded in a groove using adhesive or sealing material, achieving fixed installation and sealing, preventing external environmental influences on the sensing element's performance, and allowing for use in special pressure and pneumatic environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the ring main unit switch detection module of this utility model; Figure 2 This is a schematic diagram of the sensor assembly in one embodiment of the ring main unit switch detection module of this utility model; Figure 3 This is a schematic diagram of the second part of the mounting block in one embodiment of the ring main unit switch detection module of this utility model; Figure 4 This is a schematic diagram of the structure of the ring main unit switch detection module of this utility model installed on the main body of the ring main unit equipment.

[0018] Explanation of icon numbers: Ring main unit switch detection module-100, ring main unit equipment body-200; Housing-110, sensing component-120, sensor component-130, ring main unit switch-210, first connection hole-220, second connection hole-230; Mounting hole -111, first fastener -112, second fastener -113, protective cover -114, cable outlet -115, third fastener -116, mounting block -121, sensing element -122, first sensor -131, second sensor -132, third sensor -133; Part 1 - 1211, Part 2 - 1212, Cross-shaped connecting groove - 1213, Groove - 1214, Through hole - 1215.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] This utility model provides a ring main unit switch detection module with a compact structure and strong adaptability. It is suitable for the narrow installation space of the ring main unit, which is conducive to the formation of a dual confirmation detection mechanism. It can monitor the opening and closing status of the switch and grounding switch of the ring main unit in real time and accurately, so as to ensure the safe operation of the ring main unit.

[0024] like Figures 1 to 4As shown, this utility model embodiment provides a ring main unit switch detection module 100, including: a housing 110, a sensing component 120 and a sensor component 130. The housing 110 is installed on the ring main unit equipment body 200. The sensing component 120 includes a mounting block 121 and a sensing element 122. The mounting block 121 includes a first part 1211 and a second part 1212 that are connected to each other. The first part 1211 is located inside the housing 110, and the sensing element 122 is embedded in the first part 1211. The mounting block 121 is connected to the ring main unit switch 210 and rotates synchronously with the ring main unit switch 210. The sensing element 122 is embedded in the mounting block 121 and can rotate synchronously with the mounting block 121. The sensor assembly 130 is located in the housing 110. The sensor assembly 130 includes multiple sensors arranged at intervals along the rotation trajectory of the mounting block 121. The sensing element 122 can rotate with the mounting block 121 to the sensing position corresponding to any sensor to sense the sensor. The opening and closing status of the ring main unit switch 210 and the grounding switch is determined by the status of the multiple sensors.

[0025] This utility model's technical solution involves setting up a sensing component 120 and a sensor component 130. The sensing component 120 includes a mounting block 121 and a sensing element 122 embedded in the mounting block 121. The mounting block 121 is connected to the ring main unit switch 210. Both the mounting block 121 and the sensing element 122 rotate synchronously with the ring main unit switch 210. The sensor component 130 includes multiple sensors arranged at intervals along the rotation trajectory of the mounting block 121. The sensing element 122 can rotate with the mounting block 121 to a sensing position corresponding to any sensor to sense the sensor. When the sensor... When component 122 rotates with mounting block 121 to the sensing position of any sensor, it triggers a sensor change. The open / closed state of the switch and grounding switch is determined by the status of multiple sensors. This utility model combines the sensing component 120 and sensor component 130, resulting in a compact structure with strong adaptability. It can adapt to the narrow installation space of the ring main unit, which is conducive to forming a dual-confirmation detection mechanism. It avoids the problem of inaccurate detection caused by the failure of its own single detection method, and is conducive to real-time and accurate monitoring of the open / closed state of the switch 210 and grounding switch of the ring main unit, ensuring the safe operation of the ring main unit.

[0026] Preferably, the housing 110 is used to support the sensing component 120 and the sensor component 130. It is made of high-strength engineering plastic in one piece, which has both lightweight and impact resistance, and can adapt to the vibration environment inside the ring main unit.

[0027] Preferably, the sensing element 122 is made of magnet steel, which has a stable magnetic field strength and can ensure the sensing sensitivity between the sensing element and the sensor. The sensing element 122 may also be a magnet assembly or other inserts that can generate a local magnetic field, and this application does not limit this.

[0028] Preferably, the sensor is a reed switch sensor, which has stable performance, can adapt to the inflation environment or special pressure conditions of the ring main unit, and effectively resists interference from factors such as humidity and dust, thus extending its service life. Other forms of sensors may also be used, such as Hall elements or other magnetic switches, and this application does not limit their application to these.

[0029] like Figure 2 As shown, the sensor assembly 130 includes a first sensor 131, a second sensor 132, and a third sensor 133, which are arc-shaped along the rotation trajectory of the mounting block 121. The sensing element 122, after rotating a preset angle with the mounting block 121, can respectively sense and cooperate with the first sensor 131, the second sensor 132, or the third sensor 133 to trigger the state change of the corresponding sensor. The first sensor 131, the second sensor 132, and the third sensor 133 are respectively used to detect the closed state, open state, and grounding switch closed state of the ring main unit switch 210. In some embodiments, the number of sensors can also be increased to achieve more precise corner position determination or redundancy fault tolerance.

[0030] Preferably, the ring main unit switch detection module 100 further includes a prompting module. When the first sensor 131, the second sensor 132, and the third sensor 133 are simultaneously in the same state, the prompting module issues an abnormal state prompt. This utility model's technical solution, by setting up a prompting module, issues an abnormal state prompt when the first sensor 131, the second sensor 132, and the third sensor 133 are simultaneously in the same state. This prompting may include a buzzer sound, an indicator light, or an alarm signal sent to the backend, facilitating timely troubleshooting by staff, preventing safety accidents caused by abnormal equipment status, and further improving the operational safety of the ring main unit.

[0031] like Figure 3 As shown, the housing 110 is also provided with mounting holes 111 for mounting sensors. Each mounting hole 111 includes multiple sets of adjustment holes, which are arranged at intervals along the rotation trajectory of the mounting block 121. The sensor is connected to any of the adjustment holes to adjust the mounting angle of the sensor relative to the housing 110. This utility model's technical solution, by providing mounting holes 111 for mounting sensors on the housing 110, with each mounting hole 111 including multiple sets of adjustment holes, allows for flexible adjustment of the sensor's mounting angle according to the rotation stroke of different models of ring main unit switches 210. This facilitates compatibility with different models of ring main unit switches 210 and enhances versatility. It also ensures precise alignment between the sensing element 122 and the sensor, improving adaptability. In other embodiments, the adjustment holes can also be set as oblong holes for more accurate adjustment of the sensor's mounting angle.

[0032] like Figures 2 to 3As shown, the second part 1212 is located outside the housing 110 and connected to the ring main unit switch 210. A cross-shaped connecting groove 1213 is provided at one end of the second part 1212 near the ring main unit switch 210. The cross-shaped connecting groove 1213 is adapted to and engages with the cross structure at the end of the ring main unit switch 210, allowing the mounting block 121 to rotate synchronously with the ring main unit switch 210. This utility model's technical solution, by providing the cross-shaped connecting groove 1213, which is adapted to and engages with the cross structure at the end of the ring main unit switch 210, allows the mounting block 121 to rotate synchronously with the ring main unit switch 210, thereby ensuring the consistency of the movement state between the sensing element 122 and the switch.

[0033] Furthermore, the inner wall of the cross-connecting groove 1213 can also be provided with an elastic rubber pad, which can compensate for the dimensional errors of different knife-edge cross structures and ensure a tight snap-fit.

[0034] In other embodiments, other types of connecting grooves may be provided at the end of the second part 1212 near the ring main unit switch 210 to accommodate different switch tip types. Furthermore, the first part 1211 and the second part 1212 are detachable, and connection with different ring main unit switches 210 can be achieved by replacing the second part 1212.

[0035] like Figure 2 As shown, the first part 1211 has a groove 1214 on its side for placing the sensor 122. The sensor 122 is embedded in the groove 1214 using an adhesive or sealing material. Preferably, the sensor 122 is embedded in the groove 1214 using epoxy resin. In this invention, the sensor 122 is embedded in the groove 1214 using an adhesive or sealing material, achieving fixed installation and sealing of the sensor 122, and preventing the external environment from affecting the performance of the sensor 122.

[0036] like Figure 3 As shown, the second part 1212 also has a through hole 1215 on its side. The through hole 1215 extends radially along the second part 1212, and a mounting member is provided inside the through hole 1215 to limit the radial displacement of the mounting block 121. Specifically, the mounting member includes a cylindrical pin. This utility model's technical solution, by providing a mounting member inside the through hole 1215 extending radially along the second part 1212, allows the mounting block 121 to further limit its radial displacement, only allowing it to rotate around its own axis, ensuring the stability of the connection between the mounting block 121 and the switch, and avoiding relative displacement caused by vibration.

[0037] like Figures 2 to 4As shown, the housing 110 includes a first fastener 112 and a second fastener 113 protruding from the outside of the housing 110. The ring main unit equipment body 200 has a first connecting hole 220 and a second connecting hole 230 respectively corresponding to the first fastener 112 and the second fastener 113. The first fastener 112 and the second fastener 113 are matched and connected with the first connecting hole 220 and the second connecting hole 230 respectively to install the housing 110 onto the ring main unit equipment body 200. This utility model's technical solution involves providing a first fastener 112 and a second fastener 113 on the housing 110, and providing a first connecting hole 220 and a second connecting hole 230 on the ring main unit body 200, corresponding to the first fastener 112 and the second fastener 113 respectively. The first fastener 112 and the second fastener 113 are respectively matched and connected to the first connecting hole 220 and the second connecting hole 230 to install the housing 110 onto the ring main unit body 200. This helps improve the stability of the housing 110 relative to the ring main unit body 200 and avoids displacement caused by vibration. Specifically, the first fastener 112 and the second fastener 113 are connecting screws, and the first connecting hole 220 and the second connecting hole 230 have threads that match the connecting screws.

[0038] like Figure 1 As shown, the housing 110 also includes a protective cover plate 114, which is detachably connected to the housing 110 via a third fastener 116 to close the inner cavity of the housing 110. Specifically, the third fastener 116 is a connecting screw. This utility model's technical solution, by providing the protective cover plate 114, forms a sealed inner cavity after the protective cover plate 114 and housing 110 are closed, protecting the internal sensor assembly 130 from interference from external environmental factors such as dust and humidity. The housing 110 is quickly connected to the ring main unit 200 via fasteners, and the protective cover plate 114 is detachable, facilitating sensor debugging and maintenance. All components adopt a standardized design, making replacement convenient and reducing subsequent maintenance costs.

[0039] like Figures 2 to 3 As shown, a cable outlet hole 115 is also provided on one side of the housing 110, through which the signal wires of the sensors extend to the outside of the ring main unit. Preferably, a sealing ring is fitted inside the cable outlet hole 115, which fits tightly against the wire, thus fixing the position of the wire and sealing the cable outlet hole 115.

[0040] The following is a detailed description of one implementation of the ring main unit switch detection module 100.

[0041] First, by adjusting the relative positions of each sensor and magnet through the mounting holes 111, the sensors and sensing elements 122 are adjusted to the accurate detection positions, thus completing the calibration process of the ring main unit switch detection module 100.

[0042] When the ring main unit switch 210 is in the closed state, the sensing element 122 is positioned opposite to the first sensor 131 (e.g., Figure 2 As shown, the first sensor 131 can be triggered by the sensing element 122, and the first sensor 131 is in a closed state. Simultaneously, the second sensor 132 and the third sensor 133 cannot sense the sensing element 122, and the second sensor 132 and the third sensor 133 are in an open-circuit state. The ring main unit switch detection module 100 detects that the first sensor 131 is in a closed state and that the second sensor 132 and the third sensor 133 are in an open-circuit state, and combines the states of the three sensors to determine that the ring main unit switch 210 is in a closed state.

[0043] When the ring main unit switch 210 is opened, the output shaft of the switch 210 rotates by a preset angle (e.g., 55°), thereby causing the mounting block 121 to rotate synchronously by a preset angle. At this time, the sensing element 122 is misaligned with the first sensor 131, and the first sensor 131 cannot sense the sensing element 122, thus the first sensor 131 is in an open circuit state. Simultaneously, the sensing element 122 is positioned opposite to the second sensor 132, and the second sensor 132 can sense the sensing element 122, thus the second sensor 132 is in a closed circuit state. At the same time, the sensing element 122 is still misaligned with the third sensor 133, and the third sensor 133 cannot sense the sensing element 122, thus the third sensor 133 is in an open circuit state. The ring main unit switch detection module 100 determines whether the switch is in a switch open state or a grounding switch open state by detecting that the first sensor 131 and the third sensor 133 are in an open circuit state and the second sensor 132 is in a closed state, and by combining the states of the three sensors.

[0044] When the ring main unit switch 210 is rotated again, the output shaft of the ring main unit switch 210 continues to rotate by a preset angle (e.g., 55°), thereby continuing to drive the mounting block 121 to rotate synchronously by a preset angle. At this time, the sensing element 122 is misaligned with the first sensor 131 and the second sensor 132, and neither the first sensor 131 nor the second sensor 132 can sense the sensing element 122; both the first sensor 131 and the second sensor 132 are in an open circuit state. Simultaneously, the sensing element 122 is positioned opposite to the third sensor 133, and the third sensor 133 can sense the sensing element 122; the third sensor 133 is in a closed state. The ring main unit switch detection module 100 determines that the grounding switch is in a closed state by detecting that the first sensor 131 and the second sensor 132 are in an open circuit state and that the third sensor 133 is in a closed state, based on the combined states of the three sensors.

[0045] This application does not limit the preset angle of rotation of the output shaft of the ring main unit switch 210. The preset angle of rotation of the output shaft of the ring main unit switch 210 can be flexibly adjusted and corrected according to the rotation stroke of different models of ring main unit switch 210 and the on-site working conditions.

[0046] If the first sensor 131, the second sensor 132, and the third sensor 133 are all in a closed or open state, that is, the states of the three sensors are consistent, then the ring main unit switch 210 is determined to be in an abnormal state, and the prompt module will send the abnormal information back to the background.

[0047] This utility model combines the sensing component 120 and the sensor component 130, resulting in a compact and highly adaptable structure. It can fit into the limited installation space of the ring main unit, facilitating a dual-confirmation detection mechanism and avoiding inaccurate detection caused by the failure of a single built-in detection method. This allows for real-time and accurate monitoring of the opening and closing status of the ring main unit's switch 210 and grounding switch, ensuring the safe operation of the ring main unit. By incorporating a prompt module, when the first sensor 131, second sensor 132, and third sensor 133 are simultaneously in the same state, the prompt module issues an abnormal status warning, facilitating timely troubleshooting by staff and preventing safety accidents caused by abnormal equipment status, further enhancing the safety of the ring main unit's operation. The sensing element 122 is embedded in the groove 1214 using adhesive or sealing material, achieving fixed installation and sealing of the sensing element 122, preventing external environmental influences on its performance, and allowing its use in special pressure and pneumatic environments.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A ring main unit switch detection module, characterized in that, include: The housing is installed on the main body of the ring main unit; The sensing component includes a mounting block and a sensing element. The mounting block is at least partially located within the housing. The mounting block is connected to the switch of the ring main unit and rotates synchronously with the switch. The sensing element is embedded in the mounting block and can rotate synchronously with the mounting block. as well as A sensor assembly is disposed within the housing. The sensor assembly includes multiple sensors arranged at intervals along the rotation trajectory of the mounting block. The sensing element can rotate with the mounting block to a sensing position corresponding to any of the sensors to sense the sensors. The open / closed state of the ring main unit switch and grounding switch is determined by the state of the multiple sensors.

2. The ring main unit switch detection module as described in claim 1, characterized in that, The sensor assembly includes a first sensor, a second sensor, and a third sensor that are arc-shaped distributed along the rotation trajectory of the mounting block. After the mounting block rotates by a preset angle, the sensing element can respectively sense and cooperate with the first sensor, the second sensor, or the third sensor to trigger the state change of the corresponding sensor. The first sensor, the second sensor, and the third sensor are respectively used to detect the closed state, the open state, and the closed state of the grounding switch of the ring main unit.

3. The ring main unit switch detection module as described in claim 2, characterized in that, The ring main unit switch detection module also includes a prompting module, which issues an abnormal status prompt when the first sensor, the second sensor, and the third sensor are all in the same state.

4. The ring main unit switch detection module as described in claim 2, characterized in that, The housing is also provided with mounting holes for mounting the sensor. Each mounting hole includes multiple sets of adjustment holes. The multiple sets of adjustment holes are arranged at intervals along the rotation trajectory of the mounting block. The sensor is connected to any of the adjustment holes to adjust the mounting angle of the sensor relative to the housing.

5. The ring main unit switch detection module as described in claim 2, characterized in that, The mounting block includes a first part and a second part that are interconnected. The first part is located within the housing, and the sensing element is embedded within the first part. The second part is located outside the housing and connected to the ring main unit switch. The end of the second part near the ring main unit switch is provided with a cross-shaped connecting groove. The cross-shaped connecting groove is adapted to and engaged with the cross structure at the end of the ring main unit switch, so that the mounting block can rotate synchronously with the ring main unit switch.

6. The ring main unit switch detection module as described in claim 5, characterized in that, The first part has a groove on its side for placing the sensor, and the sensor is embedded in the groove by an adhesive or a sealing material.

7. The ring main unit switch detection module as described in claim 5, characterized in that, The second part is also provided with a through hole on its side, the through hole extending radially along the second part, and a mounting member is provided in the through hole to limit the radial displacement of the mounting block.

8. The ring main unit switch detection module as described in any one of claims 2 to 7, characterized in that, The housing includes a first fastener and a second fastener protruding from the outside of the housing. The ring main unit has a first connection hole and a second connection hole corresponding to the first fastener and the second fastener, respectively. The first fastener and the second fastener are matched and connected to the first connection hole and the second connection hole, respectively, to install the housing onto the ring main unit.

9. The ring main unit switch detection module as described in any one of claims 2 to 7, characterized in that, The housing also includes a protective cover plate, which is detachably connected to the housing via a third fastener to close the housing cavity.

10. The ring main unit switch detection module as described in any one of claims 2 to 7, characterized in that, The housing is also provided with a cable outlet on one side, through which the signal wires of the sensors extend to the outside of the ring main unit.

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