Special sensor positioning clamp suitable for core components of extra-high voltage converter valve

Abstract

The utility model relates to positioning clamp technical field, concretely relates to the special sensor positioning clamp suitable for the core component of extra -high voltage converter valve, it includes main part and at least one dog. Through setting the main part that is provided with accommodating groove, and inbuilt elastic clamp block in accommodating groove, make sensor can be quickly clamped into accommodating groove and by elastic clamp block steady fixed. Utilize the elastic deformation and resilience of dog when being stressed, realize the quick assembly and disassembly without tool, improve installation efficiency and operation safety, and the elastic clamping mode effectively avoids the damage of precise component because of over -twist or rigid extrusion. In addition, through the main part is designed to different shapes and matches different form dog, can adapt to various installation surface. Through setting the wire slot, provides the laying path of standard, neat for sensor cable, effectively solved the safe hidden danger that cable is disorderly entangled. The practicability, reliability and scene universality of sensor positioning clamp are strengthened.

Description

Technical Field

[0001] This utility model relates to the field of positioning clip technology, specifically to a special sensor positioning clip applicable to the core components of ultra-high voltage converter valves. Background Technology

[0002] Ultra-high voltage direct current (UHVDC) transmission systems are core equipment for cross-regional energy distribution. The converter valve, as the core power conversion unit, directly determines the stability of the transmission system. Its internal components, such as busbars, metal interconnects, thyristors, cooling water pipes, and reactors, generate significant heat during operation. Real-time and accurate monitoring using temperature sensors is essential to prevent overheating failures. Properly installed and secured sensors are a prerequisite for ensuring accurate and reliable monitoring data.

[0003] Existing sensor mounting methods suffer from the following main problems: First, installation is inconvenient. Many clamps require screwdrivers or other tools to tighten in confined spaces, which is inefficient and carries the risk of tools falling and causing short circuits. Second, there is a conflict between clamping stability and component protection. In pursuit of secure mounting, some clamps apply excessive clamping force, which can easily damage precision components such as the thyristor ceramic housing. Conversely, clamps with insufficient clamping force are prone to loosening under equipment vibration, leading to inaccurate temperature readings from the sensor. Third, there is a lack of convenient cable management. Sensor cables are exposed and tangled, easily snagged or interfering with other components. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model proposes a special sensor positioning clip for the core components of ultra-high voltage converter valves. This device effectively solves the problems mentioned in the background art, such as cumbersome operation, easy damage to components, messy cables, and poor adaptability to different scenarios.

[0005] The special sensor positioning clip of this utility model, applicable to the core components of ultra-high voltage converter valves, adopts the following technical solution, including: The main body has a receiving groove for accommodating the sensor. An elastic block is fixedly connected in the receiving groove. The elastic block undergoes elastic deformation when subjected to force to fix the sensor.

[0006] The gripper is fixedly connected to the main body. When subjected to force, the gripper undergoes elastic deformation, moving away from or towards the target component, thereby clamping or disengaging from the target component.

[0007] Optionally, the main body has a long, rod-like structure, and the receiving groove extends along the length of the main body.

[0008] Optionally, the main body is arc-shaped. The receiving groove is arc-shaped and extends circumferentially along the main body, and is formed on the inner peripheral wall of the main body.

[0009] Optionally, the surface of the main body with the receiving groove is either curved or flat.

[0010] Optionally, a cable tray is provided on the main body or the claw, which is connected to the receiving slot. The cable tray is used to guide the sensor cable.

[0011] Optionally, multiple grippers are provided, and the multiple grippers are distributed at intervals along the extension direction of the main body.

[0012] Optionally, the chuck claws are C-shaped.

[0013] Optionally, the claws are hook-shaped.

[0014] Optionally, the main body is fixedly connected to a handle on the side opposite to the receiving groove.

[0015] Optionally, the sensor positioning clamp also includes a base, which is disc-shaped. Multiple main bodies are provided, evenly distributed along the circumference of the base. A gripper is positioned between the main body and the base. At least one main body has a receiving groove.

[0016] The beneficial effects of this utility model are as follows: By setting a main body with a receiving groove and embedding an elastic locking block in the receiving groove, the sensor can be quickly snapped into the receiving groove and stably fixed by the elastic locking block. Utilizing the elastic deformation and rebound of the claws under force, tool-free quick assembly and disassembly are achieved, improving the work efficiency and operational safety in the narrow space of the converter valve. At the same time, the elastic clamping method effectively avoids damage to precision components caused by over-tightening or rigid compression.

[0017] Furthermore, by designing the main body in different shapes and matching different types of claws, it can adapt to various installation scenarios such as cooling water pipes, busbars, thyristors, and reactor interiors, easily handling various installation surfaces from regular pipes to irregular inner walls. The inclusion of cable trays provides a standardized and neat laying path for sensor cables, effectively solving the safety hazards of messy and tangled cables. This enhances the practicality, reliability, and versatility of the sensor positioning clamp. Attached Figure Description

[0018] 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 these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the first embodiment of the special sensor positioning clip of the present invention, applicable to the core component of an ultra-high voltage converter valve. Figure 2This is a schematic diagram of the second embodiment of the special sensor positioning clip of the present invention, applicable to the core component of an ultra-high voltage converter valve. Figure 3 This is a schematic diagram of the third embodiment of the special sensor positioning clip of the present invention, applicable to the core component of an ultra-high voltage converter valve; Figure 4 This is a structural schematic diagram of the fourth embodiment of the special sensor positioning clip applicable to the core components of ultra-high voltage converter valves.

[0020] In the diagram: 100, main body; 110, receiving groove; 111, elastic locking block; 120, cable tray; 200, locking claw; 300, base; 400, handle. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] First embodiment: like Figure 1 As shown, the special sensor positioning clamp for the core components of ultra-high voltage converter valves provided by this utility model includes a main body 100 and a claw 200.

[0023] The main body 100 has a long, rod-like structure extending vertically. A receiving groove 110 for accommodating a sensor is formed on the main body 100, extending axially along the main body 100. An elastic locking block 111 is fixedly connected to the receiving groove 110. The elastic locking block 111 deforms elastically when subjected to force to secure the sensor. The surface of the main body 100 with the receiving groove 110 is curved. A cable tray 120 is also formed on the main body 100, communicating with the receiving groove 110, and is used to hold the sensor cable. A handle 400 is fixedly connected to the side of the main body 100 opposite to the receiving groove 110.

[0024] The chuck 200 is fixedly connected to the main body 100. The chuck 200 is located on the side of the main body 100 with the receiving groove 110. When subjected to force, the chuck 200 undergoes elastic deformation, moving away from or towards the target part, thereby clamping or disengaging from the target part. There are two chucks 200, located at both ends of the main body 100, and the chucks 200 are C-shaped.

[0025] During use, select a sensor positioning clip with matching claws 200 based on the actual diameter of the cooling water pipe. Place the temperature sensor into the receiving groove 110. The elastic locking block 111 in the receiving groove 110 uses its own pre-tightening characteristics to firmly fix the sensor and prevent it from loosening. Hold the main body 100 and align the claws 200 with the preset installation position on the cooling water pipe. Apply a force towards the cooling water pipe to the main body 100. The claws 200 undergo elastic deformation due to the radial outward force from the cooling water pipe, increasing the opening of the C-shaped claws 200. When the claws 200 pass over the larger diameter of the cooling water pipe, they release their elasticity and quickly engage with the cooling water pipe, completing the installation. After installation, the sensor's sensing surface is in contact with the cooling water pipe, allowing for temperature detection. During use, thermal grease can be applied to the sensor's sensing surface to ensure the accuracy of the monitoring results.

[0026] During disassembly, hold handle 400 and pry the claw 200 outward to increase the opening of the C-shaped claw 200. Alternatively, apply a force away from the cooling water pipe to the main body 100. The cooling water pipe will exert a force on the claw 200 away from the receiving groove 110, causing the opening of the C-shaped claw 200 to gradually increase. Once the claw 200 has passed the large diameter of the cooling water pipe, with the combined force applied by the operator, the sensor positioning clamp can be easily separated from the cooling water pipe, making the operation convenient.

[0027] Second embodiment: like Figure 2 As shown, the special sensor positioning clamp for the core components of ultra-high voltage converter valves provided by this utility model includes a main body 100 and a claw 200.

[0028] The main body 100 is arc-shaped, and a receiving groove 110 for accommodating a sensor is formed on the main body 100, extending circumferentially along the main body 100. An elastic locking block 111 is fixedly connected in the receiving groove 110, and the elastic locking block 111 undergoes elastic deformation when subjected to force to fix the sensor. The surface of the main body 100 with the receiving groove 110 is arc-shaped. A handle 400 is fixedly connected to the side of the main body 100 opposite to the receiving groove 110.

[0029] The gripper 200 is C-shaped and has two pieces, located at both ends of the main body 100. The gripper 200 is fixed to the main body 100 and located on the side of the main body 100 with the receiving groove 110. When subjected to force, the gripper 200 undergoes elastic deformation, moving away from or towards the target component, thereby clamping or disengaging from the target component. A cable tray 120 is provided on the gripper 200, communicating with the receiving groove 110, and is used to hold the sensor cable.

[0030] During use, the temperature sensor is placed in the receiving groove 110. The elastic locking block 111 in the receiving groove 110 uses its own pre-tightening characteristics to firmly fix the sensor and prevent it from loosening. Holding the main body 100, the claw 200 is aligned with the preset installation position of the thyristor. A force is applied to the main body 100 towards the thyristor. The claw 200 is subjected to the radial outward force of the thyristor, causing elastic deformation. The opening of the C-shaped claw 200 increases. When the claw 200 passes the large diameter of the thyristor, the claw 200 releases its elasticity and quickly engages with the thyristor, completing the installation. After installation, the sensing surface of the sensor and the inner surface of the claw 200 are in contact with the cooling water pipe, and the sensor detects the temperature of the cooling water pipe. During use, thermal grease can also be applied to the sensing surface of the sensor to ensure the accuracy of the monitoring results.

[0031] During disassembly, hold handle 400 and simultaneously pry the claw 200 outwards to increase the opening of the C-shaped claw 200. Alternatively, apply a force away from the thyristor to the main body 100; the thyristor will then exert a force on the claw 200 away from the receiving groove 110, causing the opening of the C-shaped claw 200 to gradually increase. Once the claw 200 has passed the large diameter of the thyristor, with the combined force applied by the operator, the sensor positioning clamp can be easily separated from the thyristor, making the operation convenient.

[0032] Third embodiment: like Figure 3 As shown, the special sensor positioning clamp for the core components of ultra-high voltage converter valves provided by this utility model includes a main body 100 and a claw 200.

[0033] The main body 100 has a long, rod-shaped structure. A receiving groove 110 for accommodating a sensor is formed on the main body 100, extending axially along the main body 100. An elastic locking block 111 is fixedly connected to the receiving groove 110. The elastic locking block 111 undergoes elastic deformation when subjected to force to fix the sensor. The surface of the main body 100 with the receiving groove 110 is planar. A cable tray 120 is formed on the main body 100, communicating with the receiving groove 110, and is used to hold the sensor cable.

[0034] The chuck 200 is hook-shaped and is located at the upper end of the main body 100. The chuck 200 is fixedly connected to the main body 100. When subjected to force, the chuck 200 undergoes elastic deformation, moving away from or closer to the target part, thereby achieving clamping or disengagement from the target part.

[0035] During use, the temperature sensor is placed in the receiving groove 110. The elastic locking block 111 in the receiving groove 110 uses its own pre-tightening characteristics to firmly fix the sensor and prevent it from loosening. Holding the main body 100, the claws 200 are aligned with the preset installation position of the busbar or metal connector, so that the main body 100 and the claws 200 are respectively located on both sides of the busbar or metal connector. A downward force is applied to the main body 100. The claws 200, under the force of the busbar or metal connector, undergo elastic deformation and move away from the main body 100, thereby hooking onto the busbar or metal connector. The claws 200 tend to release their elastic force and move closer to the main body 100, thus making the sensor fit tightly against the busbar or metal connector, effectively preventing the clamp from loosening under the vibration conditions of the converter valve operation. During use, thermal grease can also be applied to the sensing surface of the sensor to ensure the accuracy of the monitoring results.

[0036] During disassembly, pry the claw 200 away from the main body 100 and apply an upward force to the sensor positioning clamp to easily separate the sensor positioning clamp from the busbar or metal connector. The operation is convenient.

[0037] Fourth embodiment: like Figure 4 As shown, the special sensor positioning clamp for the core components of ultra-high voltage converter valves provided by this utility model includes a main body 100, a claw 200, and a base 300.

[0038] The base 300 is disc-shaped and horizontally positioned.

[0039] Multiple main bodies 100 are provided, three of which are shown in the figure. These main bodies 100 are evenly distributed circumferentially along the base 300. The main bodies 100 are inclined, with their upper ends located outside their lower ends. At least one of the main bodies 100 has a receiving groove 110 on its outer surface for accommodating a sensor, extending axially along the main body 100. An elastic locking block 111 is fixedly connected to the receiving groove 110, and this block deforms elastically under force to secure the sensor. The surface of the main body 100 with the receiving groove 110 is curved. A cable tray 120 is provided on the main body 100, communicating with the receiving groove 110, and is used to hold the sensor cable. A handle 400 is connected to the main body 100.

[0040] The gripper 200 is fixedly connected between the main body 100 and the base 300. When subjected to force, the gripper 200 undergoes elastic deformation, moving away from or closer to the target component, thereby achieving clamping or disengagement from the target component.

[0041] During use, the temperature sensor is placed in the receiving groove 110. The elastic locking block 111 in the receiving groove 110 uses its own pre-tightening property to firmly fix the sensor and prevent it from loosening. The sensor cable is placed in the cable tray 120 to avoid cable tangling. Holding the three handles 400, align the base 300 with the preset installation position inside the reactor. Use the handles 400 to adjust the clamp angle to adapt to the irregular surface inside the reactor. Apply a force to the handles 400 to bring them closer together, causing the claws 200 to elastically deform. After placing the base 300 in the installation position, release the handles 400. The claws 200 release their elastic force, and the multiple claws 200 move away from each other, thereby causing the main body 100 to adhere tightly to the inner wall of the reactor, effectively preventing the sensor positioning clamp from loosening under the vibration conditions of the converter valve operation. During use, thermal grease can also be applied to the sensing surface of the sensor to ensure the accuracy of the monitoring results.

[0042] During disassembly, hold multiple handles 400 close to each other and apply a force away from the reactor to the handles 400 to separate the sensor positioning clip from the reactor. The operation is convenient.

[0043] In a further embodiment, each of the multiple main bodies 100 is provided with a cable tray 120 and a receiving slot 110. The number of sensors installed can be selected according to the actual working conditions to further ensure the temperature monitoring results.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dedicated sensor positioning clamp for core components of ultra-high voltage converter valves, characterized in that, include: The main body has a receiving groove for accommodating the sensor; an elastic block is fixedly connected in the receiving groove, and the elastic block undergoes elastic deformation when subjected to force to fix the sensor. The gripper is fixedly connected to the main body; when subjected to force, the gripper undergoes elastic deformation, moving away from or closer to the target component, thereby achieving clamping or detachment from the target component.

2. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The main body is a long, rod-shaped structure, and the receiving groove extends along the length of the main body.

3. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The main body is arc-shaped; the receiving groove is arc-shaped and extends along the circumference of the main body, and is opened on the inner circumferential wall of the main body.

4. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The surface of the main body with the receiving groove is either curved or flat.

5. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The main body or the claw has a cable tray, which is connected to the receiving slot. The cable tray is used to guide the sensor cable.

6. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The device has multiple grippers, which are spaced apart along the extension direction of the main body.

7. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to any one of claims 1-6, characterized in that, The chuck claws are C-shaped.

8. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to any one of claims 1-6, characterized in that, The claws are hook-shaped.

9. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The main body is fixedly connected with a handle.

10. The dedicated sensor positioning clamp for core components of ultra-high voltage converter valves according to claim 1, characterized in that, The sensor positioning clamp also includes a base, which is disc-shaped; multiple main bodies are provided; the multiple main bodies are evenly distributed along the circumference of the base; claws are provided between the main bodies and the base; at least one main body has a receiving groove.

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