Zero-loss depth current limiting device
By setting up a guardrail on the outside of the current limiter and locking it with clamping components, the safety hazards caused by the lack of protection of the existing current limiter are solved, and effective protection and safety improvement of the current limiter is achieved.
Patent Information
- Application Number
- CN202421852499.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The existing current limiters lack protective devices, which poses safety risks, which may cause pedestrians to touch dangerous parts.
A zero-loss depth current limiting device is designed. By setting a guardrail on the outside of the current limiter and locking the guardrail with a clamping assembly, effective protection of the current limiter is achieved.
Effectively prevent pedestrians from touching the current limiter, improving safety, and at the same time, the design of the guardrail allows easy wires to pass through and easy installation.
Smart Images
Figure CN223052749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical equipment, in particular to a zero-loss deep current limiting device. Background Art
[0002] The current limiting device is composed of a vortex-driven converter in parallel with a deep current limiting reactor. During normal operation, the vortex-driven converter is in the closed state, and the active and reactive power losses of the reactor are reduced to zero, reducing the operation cost; when a short-circuit fault occurs, the device quickly commutates, increases the system short-circuit impedance, and the reactor is put into operation to limit the short-circuit current, so that the circuit breaker at the fault point can reliably cut off the fault.
[0003] The existing current limiter does not have a protection device, and anyone may come into contact with the dangerous part of the current limiter, which has potential safety hazards and therefore needs to be changed urgently. Summary of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides a zero-loss deep current limiting device, which solves the problems put forward in the above background art.
[0006] (II) Technical Solutions
[0007] To achieve the above object, the utility model is realized through the following technical solutions: a zero-loss deep current limiting device, including a chassis, a current limiter fixed on the chassis, and a limit ring. The limit ring is located outside the current limiter, and a guardrail for protection is arranged outside the current limiter. The guardrail is clamped on the outer ring of the limit ring;
[0008] The guardrail includes an upper ring, a lower ring, and a plurality of side bars fixed between the upper ring and the lower ring. The lower ring is clamped on the outer ring of the limit ring.
[0009] Preferably, the upper ring and the lower ring have the same size, and the inner diameter of the lower ring is the same as the outer diameter of the limit ring.
[0010] Preferably, a plurality of clamping components are arranged on the lower ring. The clamping components include a fixing plate fixed on the lower ring, a clamping block located on one side of the fixing plate, a screw rod rotatably inserted on the fixing plate, the other end of the screw rod is rotatably inserted into the clamping block, a rotating block is fixedly connected to the other end of the screw rod, and a telescopic rod is fixedly connected between the clamping block and the fixing plate.
[0011] Preferably, the clamping block has an arc surface that matches the limit ring.
[0012] Preferably, the side bars are equally spaced between the upper ring and the lower ring, and there is a gap between two adjacent side bars.
[0013] Preferably, the middle part of the side strip is in a vertical state, and the upper and lower ends incline towards the inside.
[0014] (III) Beneficial effects
[0015] The utility model provides a zero-loss deep current-limiting device, which has the following beneficial effects:
[0016] 1. In the utility model, a guardrail is arranged outside the current limiter, which can effectively protect the current limiter, effectively prevent pedestrians from touching the current limiter, and there are gaps between the side strips inside the guardrail, which can facilitate the wires to pass through; during installation, the lower ring is clamped on the limit ring to achieve the positioning purpose of the guardrail.
[0017] 2. In the utility model, by using a plurality of clamping components to clamp the limit ring, the position of the guardrail is locked. Specifically, by rotating the rotating block, the screw rod moves, pulling the clamping block close to the limit ring, so that the clamping block abuts against the limit ring, thus achieving the locking purpose of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a front view three-dimensional structure diagram of a zero-loss deep current-limiting device proposed by the utility model;
[0019] Figure 2 is a structure diagram of the current limiter of a zero-loss deep current-limiting device proposed by the utility model;
[0020] Figure 3 is a structure diagram of the guardrail of a zero-loss deep current-limiting device proposed by the utility model;
[0021] Figure 4 is Figure 3 the enlarged structure diagram at A of
[0022] In the figure: 1, chassis; 2, current limiter; 3, limit ring; 4, guardrail; 41, side strip; 42, upper ring; 43, lower ring; 5, clamping component; 51, fixing plate; 52, screw rod; 53, clamping block; 54, telescopic rod; 55, rotating block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.
[0024] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a zero-loss deep current limiting device, including a chassis 1, a current limiter 2 fixed on the chassis 1, and a limit ring 3. The limit ring 3 is located outside the current limiter 2. A guardrail 4 for protection is arranged outside the current limiter 2, and the guardrail 4 is clamped on the outer ring of the limit ring 3;
[0025] Arranging a guardrail 4 outside the current limiter 2 can effectively protect the current limiter 2, and can effectively prevent pedestrians from touching the current limiter 2, playing a role in safety protection.
[0026] The guardrail 4 is made of aluminum alloy. Aluminum alloy is a lightweight material. Compared with other metal materials such as steel, its density is lower. Therefore, using aluminum alloy for the guardrail 4 can reduce the overall weight, making it convenient for installation and handling; aluminum alloy has good corrosion resistance and will not be affected by environmental factors such as oxidation and corrosion. This enables the aluminum alloy guardrail 4 to maintain its beauty and durability for a long time in the outdoor environment.
[0027] Specifically, the guardrail 4 includes an upper ring 42, a lower ring 43, and a plurality of side bars 41 fixed between the upper ring 42 and the lower ring 43. The lower ring 43 is clamped on the outer ring of the limit ring 3.
[0028] The upper ring 42 and the lower ring 43 have the same size, which is convenient for unified production. The inner diameter of the lower ring 43 is the same as the outer diameter of the limit ring 3, which ensures that the lower ring 43 can be accurately clamped with the limit ring 3, and the lower ring 43 can slide along the surface of the limit ring 3.
[0029] When installing the guardrail 4, the lower ring 43 is clamped on the limit ring 3 to achieve the purpose of preliminary positioning of the guardrail 4.
[0030] Specifically, a plurality of clamping components 5 are arranged on the lower ring 43. The clamping component 5 includes a fixing plate 51 fixed on the lower ring 43, a clamping block 53 located on one side of the fixing plate 51, a screw rod 52 rotatably inserted into the fixing plate 51. The other end of the screw rod 52 is rotatably inserted into the clamping block 53. A rotating block 55 is fixedly connected to the other end of the screw rod 52. A telescopic rod 54 is fixedly connected between the clamping block 53 and the fixing plate 51, and the telescopic rod 54 has the function of guiding the clamping block 53.
[0031] Specifically, by rotating the rotating block 55, the screw rod 52 is driven to move. The movement of the screw rod 52 will pull the clamping block 53 closer to the limit ring 3, so that the clamping block 53 abuts against the limit ring 3, thus achieving the purpose of locking the guardrail 4.
[0032] In addition, the clamping block 53 has an arc surface, which matches the limit ring 3, increasing the contact area between the clamping block 53 and the limit ring 3, thereby improving the clamping force and clamping quality.
[0033] The side strips 41 are evenly distributed between the upper ring 42 and the lower ring 43. There are gaps between adjacent side strips 41, and the gaps between the side strips 41 facilitate the passage of wires.
[0034] The shape structure of the side strip 41 is such that the middle part of the side strip 41 is in a vertical state, and the upper and lower ends incline towards the inside, which can effectively increase the protection range of the side strip 41.
[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A zero-loss deep current limiting device, characterized in that: The invention comprises a chassis (1), a flow limiter (2) fixed on the chassis (1), and a limiting ring (3), wherein the limiting ring (3) is located outside the flow limiter (2), a guardrail (4) for protection is arranged outside the flow limiter (2), and the guardrail (4) is clamped on the outer ring of the limiting ring (3); The guardrail (4) comprises an upper circular ring (42), a lower circular ring (43) and a plurality of side strips (41) fixed between the upper circular ring (42) and the lower circular ring (43); the lower circular ring (43) is clamped to the outer ring of the limiting ring (3).
2. A zero-loss deep current limiting device according to claim 1, characterized in that: The upper circular ring (42) and the lower circular ring (43) have the same size, and the inner diameter of the lower circular ring (43) is the same as the outer diameter of the limiting ring (3).
3. A zero-loss deep current limiting device according to claim 1, characterized in that: A plurality of clamping assemblies (5) are arranged on the lower circular ring (43), and the clamping assemblies (5) include a fixing plate (51) fixed on the lower circular ring (43), a clamping block (53) located on one side of the fixing plate (51), and a screw rod (52) rotatably inserted on the fixing plate (51), the other end of the screw rod (52) being rotatably inserted in the clamping block (53), the other end of the screw rod (52) being fixedly connected with a rotating block (55), and a telescopic rod (54) being fixedly connected between the clamping block (53) and the fixing plate (51).
4. A zero-loss deep current limiting device according to claim 3, characterized in that: The clamping block (53) has an arc-shaped surface, which matches the limiting ring (3).
5. A zero-loss deep current limiting device according to claim 1, characterized in that: The side strips (41) are distributed at equal distances between the upper circular ring (42) and the lower circular ring (43), and there is a gap between two adjacent side strips (41).
6. A zero-loss deep current limiting device according to claim 5, characterized in that: The middle part of the side strip (41) is in a vertical state, and the upper and lower ends are inclined toward the inside.