A lightning arrester monitoring device
Patent Information
- Application Number
- CN202521668327.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-08-06
AI Technical Summary
[0004]针对现有技术的不足，本实用新型提供了一种避雷器监测装置，以解决上述连接后容易出现松动现象，影响信号传输的稳定性，安装和拆卸过程较为繁琐，给后期的维护和检修带来不便
[0019]该避雷器监测装置，信号连接机构通过螺柱与箱体底部的嵌设连接，能够增强整体结构的稳固性，螺柱外部的圆角卡槽与卡柱配合，结合弹簧的弹力作用，可使滑动套和螺套在连接过程中实现快速卡合，提升连接效率，同时有效防止连接后的松动，保障信号传输的稳定性。螺柱与螺套的螺纹连接方式，配合滑动套与螺套之间的滑动连接，使得信号连接机构在安装和拆卸时更加便捷，便于后期的维护和检修。空心槽的设置为卡柱的滑动提供了空间，保证了卡柱在弹簧作用下能够顺利与圆角卡槽配合，进一步增强了连接的可靠性，确保交流电流源和电压调节组件能够稳定地向避雷器的电流互感器和智能电子设备输入模拟信号，从而保证整个监测装置的正常运行。
Smart Images
Figure CN224816348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of surge arrester monitoring devices, specifically a surge arrester monitoring device. Background Technology
[0002] Surge arrester monitoring devices belong to the field of equipment used in power systems to monitor the operating status of surge arresters. They contain multiple components such as AC current sources, voltage regulation components, current transformers, and intelligent electronic devices. These components need to be connected by signal connection mechanisms to transmit signals, so as to ensure that analog signals can be accurately input and to ensure the smooth operation of monitoring work.
[0003] The existing surge arrester monitoring devices have certain shortcomings in the structural design of the signal connection mechanism. The connection structure lacks stability, the connection process is inefficient, and loosening is prone to occur after connection, affecting the stability of signal transmission. Furthermore, the installation and disassembly processes are cumbersome, causing inconvenience for later maintenance and repair. In addition, some components in the connection structure lack sufficient room for movement, resulting in unsmooth and unreliable engagement, making it difficult to ensure stable analog signal input to relevant components, which may affect the normal operation of the entire monitoring device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a surge arrester monitoring device to solve the problems of loosening after connection, affecting signal transmission stability, and the cumbersome installation and disassembly process, which causes inconvenience for later maintenance and repair. Furthermore, some connection structures lack sufficient movement space for the engaging components, resulting in unsmooth and unreliable engagement, making it difficult to ensure stable analog signal input to relevant components, and potentially affecting the normal operation of the entire monitoring device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a surge arrester monitoring device, comprising: a housing, a battery, a signal connection mechanism, an inverter circuit, an AC current source, a voltage regulation component, and a control unit. The battery is connected to the inverter circuit via a circuit, the inverter circuit is connected to the AC current source, the AC current source is connected in series with the voltage regulation component, and the control unit is connected to both the AC current source and the voltage regulation component. The AC current source is used to input an analog current signal to the current transformer of the surge arrester, and the voltage regulation component is used to input an analog voltage signal to the intelligent electronic device.
[0006] The signal connection mechanism includes a stud, which is embedded in the bottom of the housing. The stud has rounded corner grooves evenly distributed on its outer surface. A threaded sleeve is threaded onto the stud, and a sliding sleeve is slidably connected to the threaded sleeve. A spring is connected between the sliding sleeve and the threaded sleeve. Hollow grooves are evenly distributed in the inner cavity of the threaded sleeve, and a locking post is evenly slidably connected to the inner cavity of the spring. The outer surface of the locking post is adapted to the inner cavity of the rounded corner groove.
[0007] When connecting the device to external equipment, push the sliding sleeve to compress the spring, causing the locking pin to disengage from the rounded corner slot. At this point, the stud can be rotated or inserted / removed for position adjustment. After releasing the sliding sleeve, the spring returns to its original position, pushing the locking pin into the corresponding rounded corner slot, achieving a secure connection between the stud and the sleeve, thus ensuring reliable signal transmission of the signal connection mechanism. This structure effectively prevents loosening caused by vibration or other factors during connection, ensuring the stability of analog current and voltage signal transmission.
[0008] Preferably, both the inner cavity of the rounded corner groove and the outer surface of the retaining post are designed with rounded corners, and the inner cavity of the threaded sleeve has a sliding groove that slidably connects with the retaining post. The rounded corner design reduces friction and wear between the retaining post and the rounded corner groove, making the retaining post move more smoothly into and out of the groove and avoiding jamming; the sliding groove provides a stable sliding path for the retaining post, ensuring that the retaining post can only move in a preset direction, further improving the smoothness of the connection operation and the durability of the structure.
[0009] Preferably, a terminal block is fixedly connected to the top of the stud, and the terminal block is electrically connected to the inverter circuit and the AC current source via wires. As an intermediate node for signal transmission, the terminal block stably transmits the electrical signals generated by the inverter circuit and the AC current source to the stud, and then transmits them to external devices through the cooperation of the stud with the external connection structure. This ensures the continuity and stability of the electrical signal transmission between the internal device and the external connection mechanism, reducing signal loss.
[0010] Preferably, the number of rounded corner slots is at least six sets, and they are evenly distributed along the circumference of the stud. At least six sets of evenly distributed rounded corner slots can make the stud more evenly stressed during connection, avoiding deformation of the stud or stud due to excessive local stress. At the same time, multiple sets of slots provide more options for connection angles, enhancing the adaptability of the signal connection mechanism and meeting the connection needs in different scenarios.
[0011] Preferably, the inner wall of the sliding sleeve is fixedly connected to an annular slider, and the outer wall of the threaded sleeve is provided with an annular groove that matches the annular slider. The cooperation between the annular slider and the annular groove restricts the movement trajectory of the sliding sleeve, allowing it to slide only along the axial direction of the threaded sleeve. This prevents the sliding sleeve from rotating or shifting during operation, ensuring the stability of the spring's extension and contraction direction. Consequently, it ensures that the locking pin can accurately engage or disengage from the rounded corner locking groove, improving the precision of the connection operation.
[0012] Preferably, the inner wall of the hollow groove is designed with a slope, and a wear-resistant sleeve is provided on the inner wall of the hollow groove. The slope design provides guidance for the sliding of the locking pin, making the extension and retraction movement of the locking pin in the hollow groove smoother and reducing jamming; the wear-resistant sleeve can reduce the frictional loss between the locking pin and the inner wall of the hollow groove, extend the service life of both, and ensure the long-term stable operation of the signal connection mechanism.
[0013] Preferably, the bottom of the housing has a mounting hole adapted to the stud, and a sealing rubber ring is fixedly connected to the inner wall of the mounting hole. The sealing rubber ring fits tightly against the gap between the stud and the mounting hole, effectively preventing external dust, moisture, and other impurities from entering the housing, avoiding the performance of internal components such as batteries and inverter circuits from being affected by moisture or dust, improving the device's moisture and dust resistance, and extending the equipment's service life.
[0014] Preferably, the control unit includes a microprocessor, a signal conditioning circuit, and a communication module, wherein the microprocessor is electrically connected to both the signal conditioning circuit and the communication module. The microprocessor can precisely control parameters such as the magnitude and frequency of the analog current signal output by the AC current source, and the amplitude and phase of the analog voltage signal output by the voltage regulation component, according to a preset program or external instructions, thereby achieving precise control of the analog signal.
[0015] The signal conditioning circuit can filter, amplify, and linearize the signals output by the AC current source and voltage regulation components to remove noise interference and improve signal quality; the communication module can realize data interaction between the control unit and external devices, making it convenient for operators to remotely obtain the working status of the device and adjust signal parameters, thereby improving the device's intelligence and remote control capabilities.
[0016] Preferably, the inner wall of the enclosure is fixedly connected to a heat insulation layer, which is an aerogel felt. Aerogel felt has excellent heat insulation properties, effectively blocking heat exchange between the inside and outside of the enclosure, preventing high or low temperatures from affecting the internal components. For example, in high-temperature environments, it can prevent external heat from entering and causing battery overheating or inverter circuit instability; in low-temperature environments, it can reduce internal heat loss, ensuring normal battery power supply and normal operation of components such as the control unit, thereby improving the stability and reliability of the device under different temperature conditions.
[0017] Preferably, the enclosure is connected to a door via hinges, and a lock is installed between the door and the enclosure. The door facilitates the operator's access to the enclosure for installation, maintenance, and replacement of internal components such as batteries, inverter circuits, and control units. The lock protects the internal components, preventing unauthorized personnel from opening the door and touching them, thus avoiding damage or signal abnormalities due to misoperation. It also provides some anti-theft protection, ensuring the device's security.
[0018] Compared with the prior art, the present invention provides a surge arrester monitoring device, which has the following beneficial effects:
[0019] This surge arrester monitoring device features a signal connection mechanism that uses studs embedded in the bottom of the housing, enhancing the overall structural stability. The rounded corners of the studs engage with the studs, and combined with the spring force, allow for rapid engagement of the sliding sleeve and threaded sleeve during connection, improving connection efficiency and effectively preventing loosening after connection, ensuring stable signal transmission. The threaded connection between the studs and threaded sleeves, combined with the sliding connection between the sliding sleeve and threaded sleeve, makes the signal connection mechanism easier to install and disassemble, facilitating later maintenance and repair. The hollow groove provides space for the sliding of the studs, ensuring smooth engagement with the rounded corners under spring action, further enhancing connection reliability. This ensures that the AC current source and voltage regulation components can stably input analog signals to the surge arrester's current transformer and intelligent electronic equipment, thereby guaranteeing the normal operation of the entire monitoring device. Attached Figure Description
[0020] Figure 1 This is a front view of the present utility model;
[0021] Figure 2 This is a plan view of the present invention;
[0022] Figure 3 This is a front view of the signal connection mechanism of this utility model;
[0023] Figure 4 This is a plan view of the signal connection mechanism of this utility model;
[0024] Figure 5 This is a schematic diagram of the system verification device of this utility model.
[0025] In the diagram: 1. Housing; 2. Battery; 3. Signal connection mechanism; 31. Stud; 32. Rounded corner slot; 33. Sliding sleeve; 34. Screw sleeve; 35. Spring; 36. Hollow groove; 37. Locking post; 4. Inverter circuit; 5. AC current source; 6. Voltage regulation component; 7. Control unit. Detailed Implementation
[0026] 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.
[0027] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 A surge arrester monitoring device includes: a housing 1, a battery 2, a signal connection mechanism 3, an inverter circuit 4, an AC current source 5, a voltage regulation component 6, and a control unit 7. The battery 2 is connected to the inverter circuit 4 via a circuit, the inverter circuit 4 is connected to the AC current source 5, the AC current source 5 is connected in series with the voltage regulation component 6, and the control unit 7 is connected to both the AC current source 5 and the voltage regulation component 6. The AC current source 5 is used to input an analog current signal to the current transformer of the surge arrester, and the voltage regulation component 6 is used to input an analog voltage signal to the intelligent electronic device.
[0028] The signal connection mechanism 3 includes a stud 31, which is embedded in the bottom of the housing 1. The stud 31 has rounded corner grooves 32 evenly distributed on its outer side. The stud 31 is threadedly connected to a sleeve 34. The sleeve 34 is slidably connected to a sliding sleeve 33. A spring 35 is connected between the sliding sleeve 33 and the sleeve 34. The inner cavity of the sleeve 34 has hollow grooves 36 evenly distributed. The inner cavity of the spring 35 is slidably connected to a locking post 37, and the outer side of the locking post 37 is adapted to the inner cavity of the rounded corner groove 32.
[0029] Please see Figure 3 and Figure 4 When it is necessary to connect the device to an external device, the sliding sleeve 33 is pushed to compress the spring 35, causing the locking pin 37 to disengage from the rounded corner slot 32. At this time, the stud 31 can be rotated or inserted / removed for position adjustment. After the sliding sleeve 33 is released, the spring 35 returns to its original position and pushes the locking pin 37 into the corresponding rounded corner slot 32, achieving a stable connection between the stud 31 and the sleeve 34, thereby ensuring reliable signal transmission of the signal connection mechanism 3. This structure can effectively prevent loosening caused by vibration and other factors during the connection process, ensuring the stability of analog current signal and analog voltage signal transmission.
[0030] Both the inner cavity of the rounded corner slot 32 and the outer surface of the retaining post 37 are designed with rounded corners. The inner cavity of the threaded sleeve 34 has a sliding groove that slidably connects with the retaining post 37. The rounded corner design reduces friction and wear between the retaining post 37 and the rounded corner slot 32, making the retaining post 37 move more smoothly into and out of the slot and avoiding jamming. The sliding groove provides a stable sliding path for the retaining post 37, ensuring that the retaining post 37 can only move in a preset direction, further improving the smoothness of the connection operation and the durability of the structure.
[0031] Please see Figure 5 A terminal block is fixedly connected to the top of the stud 31. The terminal block is electrically connected to the inverter circuit 4 and the AC current source 5 via wires. As an intermediate node for signal transmission, the terminal block can stably conduct the electrical signals generated by the inverter circuit 4 and the AC current source 5 to the stud 31. Then, through the cooperation of the stud 31 and the external connection structure, the signals are transmitted to external devices, ensuring the continuity and stability of the electrical signal transmission between the internal device and the external connection mechanism, and reducing signal loss.
[0032] The number of rounded corner slots 32 is at least six, and they are evenly distributed along the circumference of the stud 31. At least six evenly distributed rounded corner slots 32 can make the stud 37 more evenly stressed during connection, avoiding deformation of the stud 31 or stud 37 due to excessive local stress. At the same time, multiple slots provide more options for connection angle, enhancing the adaptability of the signal connection mechanism 3 and meeting the connection needs in different scenarios.
[0033] An annular slider is fixedly connected to the inner wall of the sliding sleeve 33, and an annular groove adapted to the annular slider is provided on the outer wall of the threaded sleeve 34. The cooperation between the annular slider and the annular groove restricts the movement trajectory of the sliding sleeve 33, allowing it to slide only along the axial direction of the threaded sleeve 34. This prevents the sliding sleeve 33 from rotating or shifting during operation, ensuring the stability of the extension and retraction direction of the spring 35. Consequently, it ensures that the locking pin 37 can accurately engage or disengage from the rounded corner locking groove 32, improving the precision of the connection operation.
[0034] The inner wall of the hollow groove 36 is designed with a slope, and a wear-resistant sleeve is provided on the inner wall of the hollow groove 36. The slope design provides guidance for the sliding of the locking post 37, making the extension and retraction movement of the locking post 37 in the hollow groove 36 smoother and reducing jamming; the wear-resistant sleeve can reduce the frictional loss between the locking post 37 and the inner wall of the hollow groove 36, extend the service life of both, and ensure the long-term stable operation of the signal connection mechanism 3.
[0035] The bottom of the housing 1 has mounting holes that fit the studs 31, and a sealing rubber ring is fixedly connected to the inner wall of the mounting holes. The sealing rubber ring fits tightly against the gap between the studs 31 and the mounting holes, effectively preventing external dust, moisture and other impurities from entering the housing 1. This prevents internal components such as the battery 2 and inverter circuit 4 from being affected by moisture or dust, thus improving the device's moisture and dust resistance and extending its service life.
[0036] The control unit 7 includes a microprocessor, a signal conditioning circuit, and a communication module. The microprocessor is electrically connected to both the signal conditioning circuit and the communication module. The microprocessor can precisely control the magnitude, frequency, and other parameters of the analog current signal output by the AC current source 5, as well as the amplitude and phase of the analog voltage signal output by the voltage regulation component 6, according to a preset program or external instructions, thereby achieving precise control of the analog signal.
[0037] The signal conditioning circuit can filter, amplify, and linearize the signals output by the AC current source 5 and the voltage regulation component 6 to remove noise interference and improve signal quality. The communication module enables data interaction between the control unit 7 and external devices, allowing operators to remotely obtain the device's working status and adjust signal parameters, thereby enhancing the device's intelligence and remote control capabilities.
[0038] A heat insulation layer, made of aerogel felt, is fixedly connected to the inner wall of the housing 1. Aerogel felt has excellent heat insulation properties, effectively blocking heat exchange between the inside and outside of the housing 1, preventing high or low temperatures from affecting the internal components. For example, in high-temperature environments, it prevents external heat from entering and causing overheating of the battery 2 and instability in the inverter circuit 4; in low-temperature environments, it reduces internal heat loss, ensuring normal power supply to the battery 2 and normal operation of components such as the control unit 7, thereby improving the stability and reliability of the device under different temperature conditions.
[0039] The exterior of the enclosure 1 is connected to a door via hinges, and a lock is installed between the door and the enclosure 1. The door facilitates the operator's access to the enclosure 1 to install, inspect, and replace internal components such as the battery 2, inverter circuit 4, and control unit 7. The lock protects the internal components of the enclosure 1, preventing unauthorized personnel from opening the door and touching the internal components, thus avoiding damage to the device or abnormal signals due to misoperation. It also provides a certain degree of anti-theft protection, ensuring the security of the device.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A surge arrester monitoring device, comprising: The enclosure comprises a housing (1), a battery (2), a signal connection mechanism (3), an inverter circuit (4), an AC current source (5), a voltage regulation component (6), and a control unit (7). The battery (2) is connected to the inverter circuit (4) via a circuit. The inverter circuit (4) is connected to the AC current source (5). The AC current source (5) is connected in series with the voltage regulation component (6). The control unit (7) is connected to both the AC current source (5) and the voltage regulation component (6). The AC current source (5) is used to input an analog current signal to the current transformer of the surge arrester. The voltage regulation component (6) is used to input an analog voltage signal to the intelligent electronic device. The feature is that the signal connection mechanism (3) includes a stud (31), the stud (31) is embedded in the bottom of the housing (1), the stud (31) has rounded corner grooves (32) evenly distributed on its outer side, the stud (31) is threadedly connected to a threaded sleeve (34), the threaded sleeve (34) is slidably connected to a sliding sleeve (33), a spring (35) is connected between the sliding sleeve (33) and the threaded sleeve (34), the inner cavity of the threaded sleeve (34) has hollow grooves (36) evenly distributed, the inner cavity of the spring (35) is slidably connected to a locking post (37), and the outer side of the locking post (37) is adapted to the inner cavity of the rounded corner groove (32).
2. The surge arrester monitoring device according to claim 1, characterized in that: The inner cavity of the rounded corner groove (32) and the outer surface of the locking post (37) are both designed with rounded corners. The inner cavity of the threaded sleeve (34) is provided with a sliding groove that is slidably connected to the locking post (37).
3. The surge arrester monitoring device according to claim 1, characterized in that: The top of the stud (31) is fixedly connected to a terminal block, which is electrically connected to the inverter circuit (4) and the AC current source (5) via wires.
4. The surge arrester monitoring device according to claim 1, characterized in that: The number of rounded corner slots (32) is at least six, and they are evenly distributed along the circumference of the stud (31).
5. The surge arrester monitoring device according to claim 1, characterized in that: The inner wall of the sliding sleeve (33) is fixedly connected to an annular slider, and the outer wall of the screw sleeve (34) is provided with an annular groove that matches the annular slider.
6. The surge arrester monitoring device according to claim 1, characterized in that: The inner wall of the hollow groove (36) is designed with a slope, and a wear-resistant sleeve is provided on the inner wall of the hollow groove (36).
7. The surge arrester monitoring device according to claim 1, characterized in that: The bottom of the housing (1) is provided with a mounting hole that is compatible with the stud (31), and a sealing rubber ring is fixedly connected to the inner wall of the mounting hole.
8. The surge arrester monitoring device according to claim 1, characterized in that: The control unit (7) includes a microprocessor, a signal conditioning circuit, and a communication module, wherein the microprocessor is electrically connected to the signal conditioning circuit and the communication module respectively.
9. A surge arrester monitoring device according to claim 1, characterized in that: The inner wall of the box (1) is fixedly connected with a heat insulation layer, which is an aerogel felt.
10. A surge arrester monitoring device according to claim 1, characterized in that: The box (1) is connected to a door by a hinge, and a lock is provided between the door and the box (1).