A wind farm power collection line protection device

Abstract

The utility model belongs to the electric power protection technical field especially is a kind of wind farm power collection line protection device, including protection shell, the inside sleeve of protection shell is embedded with telescopic shell, the both ends of telescopic shell with the protection shell junction place are detachably installed with positioning screw, the inside waterproof inner shell of protection shell is slidably installed, the upper portion of waterproof inner shell with the protection shell junction place is equipped with limit clamping groove;The side outside positioning screw of sliding installation has limit block, the side fixed connection of positioning screw has telescopic spring, the side fixed of telescopic spring has fixed block;The nested telescopic structure and elastic limiting mechanism of the application realize the double function of adjustable length and anti-loosening of device, solve the problem that traditional protection device cannot be adapted to different size cable head, prevent cable head protection device to be fixed size, only can be applicable to one kind of specification cable head, increase the purchase and operation cost problem.

Description

Technical Field

[0001] This utility model belongs to the field of power protection technology, specifically relating to a wind farm collector line protection device. Background Technology

[0002] A wind farm is a place that uses wind energy to convert into electrical energy. Through multiple wind turbine generators, collection lines and step-up substations, wind energy is converted into electrical energy and transmitted to the power grid. Due to the special requirements of wind farms for environmental conditions, the natural environment around the farm is generally quite harsh. Rain, snow, dust and other severe weather conditions have a significant impact on the circuit facilities, so protective devices are needed to protect the cable heads of the wind farm collection lines.

[0003] Chinese Patent Publication No. CN217642653U discloses a cable head protection device for wind farm collector lines, including a cable head body, a protective box surrounding the cable head body, and a protective cover at the top of the protective box. A sliding cover is provided on the front of the protective box, and sliding grooves are formed on both sides of the sliding cover. Threaded grooves are formed at the corners of the sliding cover. A heat insulation layer is provided on the inner wall of the protective box, and a cable passage groove is formed at the bottom of the protective box. A partition is provided inside the protective cover, and heat insulation material is placed above the partition. Several heat dissipation grooves are formed at the bottom of the protective cover. Compared with existing cable head protection devices, this invention improves the overall protective performance and practicality of the cable head protection device through its design.

[0004] While the aforementioned cable head protection device for wind farm collectors can improve the overall protection and practicality of cable head protection devices, these devices are of fixed size and can only be used for one type of cable head. However, in actual use, multiple types of cable heads are required, resulting in the need to configure multiple sets of protection devices for the same wind farm, which increases procurement and maintenance costs. Therefore, we propose a wind farm collector line protection device that supports adjustment of multiple sizes, making the device suitable for multiple types of cable heads and reducing usage costs. Utility Model Content

[0005] To address the issue that the cable head protection devices mentioned in the background are of fixed size and only applicable to one type of cable head, while in actual use multiple cable head sizes are required, resulting in multiple sets of protection devices needing to be configured for the same wind farm, thus increasing procurement and maintenance costs, this utility model provides a wind farm collector line protection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind farm collector line protection device, comprising a protective shell, an internal telescopic shell, and positioning screws detachably installed at both ends of the connection between the telescopic shell and the protective shell. A waterproof inner shell is slidably installed inside the protective shell, and a limit slot is provided above the connection between the waterproof inner shell and the protective shell.

[0007] A limit block is slidably installed on one side of the positioning screw, a telescopic spring is fixedly connected to one side of the positioning screw, and a fixing block is fixed to one side of the telescopic spring.

[0008] In a preferred embodiment of the wind farm collector line protection device of this utility model, the protective housing is telescopically connected to the telescopic housing, and the protective housing is fixed relative to the telescopic housing by the positioning screw.

[0009] As a preferred embodiment of the wind farm collector line protection device of this utility model, the protective shell is slidably engaged with the waterproof inner shell through the limiting slot.

[0010] In a preferred embodiment of the wind farm collector line protection device of this utility model, the limiting block forms a telescopic structure with the fixed block through the telescopic spring, and the position of the limiting block corresponds to that of the positioning screw.

[0011] As a preferred embodiment of the wind farm collector line protection device of this utility model, a reserved opening is provided on one side of the protective shell, a sealing plate is slidably installed on the outside of the reserved opening, and a sealing ring is adhered to the inside of the sealing plate.

[0012] As a preferred embodiment of the wind farm collector line protection device of this utility model, a positioning block is fixed on the inner side of the encapsulation plate, and a positioning bolt is inserted inside the positioning block.

[0013] As a preferred embodiment of the wind farm collector line protection device of this utility model, the lower end face of the protective shell is provided with a plurality of heat dissipation holes, and the lower end face of the telescopic shell is fixed with a breathable mesh.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This application achieves the dual functions of adjustable device length and anti-loosening through a nested telescopic structure and elastic limiting mechanism, which solves the problem that traditional protective devices cannot adapt to cable heads of different sizes. It also prevents cable head protection devices from being fixed in size and only applicable to one type of cable head. In actual use, multiple types of cable heads are required, resulting in the need to configure multiple sets of protective devices for the same wind farm, which increases the procurement and maintenance costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the protective shell in this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the waterproof inner shell in this utility model;

[0020] Figure 5 This is a schematic diagram of the external structure of the present invention after vertical flipping.

[0021] Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0022] In the diagram: 1. Protective shell; 2. Reserved opening; 3. Encapsulation slide plate; 4. Positioning block; 5. Positioning bolt; 6. Sealing ring; 7. Telescopic shell; 8. Waterproof inner shell; 9. Limiting slot; 10. Breathable mesh surface; 11. Heat dissipation hole; 12. Positioning screw; 13. Limiting block; 14. Telescopic spring; 15. Fixing block. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1-6 As shown;

[0026] A wind farm power collection line protection device includes a protective shell 1, a telescopic shell 7 nested inside the protective shell 1, and positioning screws 12 detachably installed at both ends of the connection between the telescopic shell 7 and the protective shell 1. A waterproof inner shell 8 is slidably installed inside the protective shell 1, and a limit slot 9 is provided above the connection between the waterproof inner shell 8 and the protective shell 1. A limit block 13 is slidably installed on one side outside the positioning screws 12, a telescopic spring 14 is fixedly connected to one side of the positioning screws 12, and a fixing block 15 is fixed to one side of the telescopic spring 14.

[0027] In this implementation plan, a nested telescopic structure and an elastic limiting mechanism are used to achieve the dual functions of adjustable device length and anti-loosening, solving the problem that traditional protective devices cannot adapt to cable heads of different sizes.

[0028] Furthermore:

[0029] In an optional embodiment, the protective housing 1 is telescopically connected to the telescopic housing 7, and the protective housing 1 is fixed relative to the telescopic housing 7 by positioning screws 12.

[0030] In this implementation plan, the telescopic connection structure, together with the positioning screws 12, is fixed, enabling the device to quickly adjust its length and lock, significantly improving installation efficiency.

[0031] Furthermore:

[0032] In an optional embodiment, the protective housing 1 is slidably engaged with the waterproof inner housing 8 via a limiting slot 9.

[0033] In this implementation scheme: the sliding engagement structure ensures precise alignment between the waterproof inner shell 8 and the protective shell 1, forming a double-layered sealing interface, which significantly improves the moisture-proof performance.

[0034] Furthermore:

[0035] In an optional embodiment, the limiting block 13 forms a telescopic structure with the fixing block 15 via the telescopic spring 14, and the position of the limiting block 13 corresponds to that of the positioning screw 12.

[0036] In this implementation scheme: the spring-driven limit block 13 automatically clamps the positioning screw 12, enhancing its resistance to vibration and loosening.

[0037] Furthermore:

[0038] In an optional embodiment, a reserved opening 2 is provided on one side of the protective housing 1, and a sealing plate 3 is slidably installed on the outside of the reserved opening 2, and a sealing ring 6 is bonded to the inside of the sealing plate 3.

[0039] In this implementation scheme, a sliding encapsulation structure combined with an elastic sealing ring 6 achieves a dynamic sealing effect.

[0040] Furthermore:

[0041] In an optional embodiment, a positioning block 4 is fixed to the inner side of the encapsulation slide plate 3, and a positioning bolt 5 is inserted inside the positioning block 4.

[0042] In this implementation scheme: the sealing ring 6 can maintain the sealing of the interface, and the positioning bolt 5 can be used to fix the positioning block 4 relatively.

[0043] Furthermore:

[0044] In an optional embodiment, the lower end face of the protective housing 1 is provided with a plurality of heat dissipation holes 11, and the lower end face of the telescopic housing 7 is fixed with a breathable mesh surface 10.

[0045] In this implementation scheme: the heat dissipation holes 11 and the breathable mesh surface 10 can form an air circulation channel, which facilitates the rejection of internal heat and avoids internal overheating.

[0046] Working principle: First, adjust the length of the protective shell according to the size of the cable head, stretching the protective shell 1 and the telescopic shell 7 to a suitable position. Then, insert the positioning screw 12 into the protective shell 1 and the telescopic shell 7 to fix them. At this time, the telescopic spring 14 and the fixing block 15 generate an interaction force, which can drive the limiting block 13 to move towards the side of the positioning screw 12, thereby limiting the positioning screw 12 through the limiting block 13 and preventing the positioning screw 12 from loosening. Next, put the protective shell 1 over the outside of the cable head. The reserved opening 2 makes it easy to insert the cable head. The protective shell 1 is made of cross-linked polyethylene or boron nitride composite material, and the outer layer is coated with an anti-ultraviolet coating, which can improve insulation. The system provides insulation and high-temperature resistance. Then, the encapsulation plate 3 slides towards the center of the protective housing 1 until the encapsulation plate 3 approaches each other. The sealing ring 6 clamps the cable harness, maintaining the interface seal. The positioning bolt 5 is then used to fix the positioning block 4. Finally, the waterproof inner shell 8 forms a double-layer dust and moisture barrier with the protective housing 1, preventing rainwater and dust from entering the housing. Simultaneously, the heat dissipation holes 11 and the breathable mesh 10 form an airflow channel, facilitating the repulsion of internal heat and preventing overheating. When the cable head needs inspection and maintenance, the protective housing 1 can be removed simply by unplugging the positioning bolt 5, reducing maintenance costs while meeting the protection requirements of the harsh wind farm environment.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wind farm collector line protection device, comprising a protective housing (1), characterized in that: The protective housing (1) is fitted with a telescopic housing (7). Both ends of the telescopic housing (7) and the protective housing (1) are detachably fitted with positioning screws (12). The protective housing (1) is slidably fitted with a waterproof inner shell (8). A limit slot (9) is provided above the connection between the waterproof inner shell (8) and the protective housing (1). A limit block (13) is slidably installed on one side of the positioning screw (12), a telescopic spring (14) is fixedly connected to one side of the positioning screw (12), and a fixing block (15) is fixed to one side of the telescopic spring (14).

2. The wind farm collector line protection device according to claim 1, characterized in that: The protective housing (1) is telescopically connected to the telescopic housing (7), and the protective housing (1) is fixed relative to the telescopic housing (7) by the positioning screw (12).

3. The wind farm collector line protection device according to claim 1, characterized in that: The protective shell (1) is slidably engaged with the waterproof inner shell (8) through the limiting slot (9).

4. A wind farm collector line protection device according to claim 1, characterized in that: The limiting block (13) forms a telescopic structure with the fixed block (15) through the telescopic spring (14), and the position of the limiting block (13) corresponds to that of the positioning screw (12).

5. A wind farm collector line protection device according to claim 1, characterized in that: The protective housing (1) has a reserved opening (2) on one side, and a sealing plate (3) is slidably installed on the outside of the reserved opening (2). A sealing ring (6) is glued to the inside of the sealing plate (3).

6. A wind farm collector line protection device according to claim 5, characterized in that: A positioning block (4) is fixed to the inner side of the encapsulation slide plate (3), and a positioning bolt (5) is inserted inside the positioning block (4).

7. A wind farm collector line protection device according to claim 1, characterized in that: The lower end face of the protective shell (1) is provided with several heat dissipation holes (11), and the lower end face of the telescopic shell (7) is fixed with a breathable mesh (10).

Images