Conductive contact finger and wind generating set

Abstract

The utility model discloses a conductive contact finger and a wind generating set, the conductive contact finger comprises a first conductive connecting surface, a second conductive connecting surface and a convex part, and the top end of the convex part is provided with at least one through hole. The first conductive contact surface and the second conductive contact surface of the conductive contact finger are positioned on the same plane and are conductively connected with the same structure, and the convex part is conductively connected with another structure, so that during actual use, the first conductive contact surface, the second conductive contact surface and the convex part form a stable approximately triangular structure, and the conductive contact finger has certain elasticity; the conductive contact finger meets the requirement of elastic conductive contact, is good in shock resistance, guarantees the contact stability of the conductive contact finger and other structures, improves the overall safety of equipment, facilitates heat dissipation through the through holes formed in the convex parts, avoids the problem of heat concentration caused by large-area contact when the conductive contact finger is connected with other structures, reduces the failure rate, and improves the reliability of the equipment. The reliability is high and the service life is long.

Description

Technical Field

[0001] The utility model relates to the field of electric power equipment, in particular to a conductive contact finger and a wind power generator set. Background Art

[0002] At present, electrical equipment in the fields of energy, power transmission and transformation, electric vehicles, industrial electricity, etc. is becoming increasingly miniaturized and integrated, which puts higher requirements on the installation and maintenance of equipment. Among them, the electrical connection part of high-voltage equipment often uses conductive contacts, which have excellent conductivity and shock resistance. The most common and most commonly used conductive contact materials are generally copper, aluminum, silver alloy and fiber carbon, among which copper has become the main material for most conductive contacts due to its low price and excellent conductivity.

[0003] Since the conductive contact finger uses the elasticity of the contact piece itself to rebound, there are problems such as high failure rate, poor shock resistance and low reliability. Therefore, there is a need for a conductive contact finger with good shock resistance and stability and long service life, which can operate safely and stably in fields such as power transmission. Utility Model Content

[0004] The utility model aims to provide a conductive contact finger and a wind turbine generator set, which have good shock resistance and stability and a long service life, and can ensure the long-term safe and stable operation of the power transmission system.

[0005] To achieve the above-mentioned purpose, the utility model provides a conductive contact finger, including a first conductive connection surface; a second conductive connection surface, the second conductive connection surface and the first conductive connection surface are located in the same plane; and a convex portion, the two sides of the convex portion extend to form a first edge and a second edge that are oppositely arranged, the first edge is connected to the first conductive connection surface, the second edge is connected to the second conductive connection surface, and the convex portion is provided with at least one through hole.

[0006] Preferably, the convex portion has a convex portion inner wall and a convex portion outer wall, the convex portion inner wall and the convex portion outer wall have the same shape, and the area of ​​the convex portion outer wall is larger than the area of ​​the convex portion inner wall.

[0007] Preferably, an end surface of the protrusion away from the first conductive connecting surface and the second conductive connecting surface is an arc-shaped surface or a plane.

[0008] Preferably, the conductive contact finger is formed by cutting from one end of the tubular body along the axial direction of the tube to the other end.

[0009] Preferably, the tubular body is a thick copper tube.

[0010] Preferably, the through holes penetrate the inner wall of the convex portion and the outer wall of the convex portion, and the through holes are arranged at intervals along the length direction of the convex portion.

[0011] The utility model also proposes a wind turbine generator set, which includes the conductive contact finger described in any one of the above items, wherein the first conductive connecting surface and the second conductive connecting surface are conductively abutted against the stator structure in the wind turbine generator set, and the protrusion is conductively abutted against the rotor structure in the wind turbine generator set; or, the first conductive connecting surface and the second conductive connecting surface are conductively abutted against the rotor structure in the wind turbine generator set, and the protrusion is conductively abutted against the stator structure in the wind turbine generator set.

[0012] The beneficial effects of the utility model are:

[0013] The first conductive contact surface and the second conductive contact surface of the conductive contact finger of the utility model are located in the same plane for conductive connection with the same structure, and the convex portion is used for conductive connection with another structure. In actual use, the first conductive contact surface, the second conductive contact surface and the convex portion form a stable approximately triangular structure, which has a certain elasticity, meets the requirements of elastic conductive contact, and has good shock resistance, thereby ensuring the stability of the contact between the conductive contact finger and the other structures and improving the overall safety of the equipment. Moreover, the through hole opened on the convex portion is conducive to heat dissipation, avoiding the problem of heat concentration caused by large-area contact when the conductive contact finger is connected to other structures, reducing the failure rate, and having high reliability and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 This is a schematic structural diagram of a conductive contact finger according to an embodiment of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the manufacturing process of the conductive contact finger.

[0017] In the above drawings: 1, tubular body; 2, substrate; 3, first conductive connection surface; 4, second conductive connection surface; 5, inner wall of the convex portion; 6, outer wall of the convex portion; 7, convex portion; 71, first side; 72, second side; 8, through hole.

[0018] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain posture (as shown in the accompanying drawings), rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific manner. Therefore, it cannot be understood as a limitation on the present invention. If the specific posture changes, the directional indication will also change accordingly.

[0021] See also Figure 1 The utility model provides a conductive contact finger, which includes a first conductive connection surface 3; a second conductive connection surface 4, the second conductive connection surface 4 and the first conductive connection surface 3 are located in the same plane; and a convex portion 7, the two sides of the convex portion 7 extend to form a first edge 71 and a second edge 72 that are oppositely arranged, the first edge 71 is connected to the first conductive connection surface 3, the second edge 72 is connected to the second conductive connection surface 4, and the convex portion 7 is provided with at least one through hole 8.

[0022] See also Figure 1 and Figure 2 In this embodiment, the first conductive contact surface and the second conductive contact surface of the conductive contact finger are located in the same plane for conductive connection with the same structure, and the convex portion is used for conductive connection with another structure. In actual use, the first conductive contact surface, the second conductive contact surface and the convex portion form a stable approximately triangular structure, which has a certain elasticity, meets the requirements of elastic conductive contact, and has good shock resistance, ensures the stability of the contact between the conductive contact finger and other structures, and improves the overall safety of the equipment. Moreover, the through hole opened on the convex portion is conducive to heat dissipation, avoiding the problem of heat concentration caused by large-area contact when the conductive contact finger is connected to other structures, reducing the failure rate, high reliability and long service life.

[0023] In actual implementation, the conductive contact finger is made of metal material, which is not specifically limited here, and is preferably copper, which has good conductive properties.

[0024] In one embodiment, the convex portion 7 has a convex inner wall 5 and a convex outer wall 6, the convex inner wall 5 and the convex outer wall 6 have the same shape, and the area of ​​the convex outer wall 6 is larger than the area of ​​the convex inner wall 5. It can be understood that the convex outer wall 6 and the convex inner wall 5 are combined to form the convex portion 7.

[0025] See also Figure 1 and Figure 2 In this embodiment, the same shape but different areas of the convex outer wall 6 and the convex inner wall 5 ensure the uniformity of the thickness of the conductive contact finger and improve the stability of the conductive contact finger.

[0026] In one embodiment, an end surface of the protrusion 7 away from the first conductive connection surface 3 and the second conductive connection surface 4 is an arc-shaped surface or a plane.

[0027] See also Figure 1 and Figure 2 In this embodiment, one end surface of the protrusion 7 is an arc-shaped surface or a plane surface to ensure the contact stability between the conductive contact finger and other mechanisms.

[0028] In one embodiment, the conductive contact finger 8 is formed by cutting from one end of the tubular body 1 to the other end along the axial direction of the tube.

[0029] See also Figure 1 and Figure 2 In this embodiment, the tubular body 1 still retains an arc-shaped structure after cutting, thereby ensuring that the conductive contact finger has a certain elasticity to meet the requirements of elastic conductive contact.

[0030] In actual implementation, the tubular body 1 is preferably a round tube.

[0031] In one embodiment, the tubular body 1 is a thick copper tube.

[0032] See also Figure 1 and Figure 2 In this embodiment, the tubular body 1 is a thick copper tube, which has low production cost, is easy to process, and has excellent conductive properties.

[0033] In actual implementation, the wall thickness of the thick copper tube is not specifically limited.

[0034] In one embodiment, the through holes 8 penetrate the inner wall 5 and the outer wall 6 of the protrusion, and the through holes 8 are arranged at intervals along the length direction of the protrusion 7 .

[0035] See also Figure 1 and Figure 2 In this embodiment, a plurality of through holes 8 are evenly spaced along the substrate 2, and the through hole area is large, which can ensure the stability of the conductive contact finger during use, avoid malfunctions caused by the irregular arrangement of the through holes 8, and improve the safety of power transmission.

[0036] In actual implementation, the number of the through holes 8 is three or more, which is set according to the length or area of ​​the substrate 2 and is not specifically limited here.

[0037] The utility model also proposes a wind turbine generator set, which includes the conductive contact finger of any one of the above items, the first conductive connection surface 3 and the second conductive connection surface 4 are conductively abutted with the stator structure in the wind turbine generator set, and the protrusion 7 is conductively abutted with the rotor structure in the wind turbine generator set; or, the first conductive connection surface 3 and the second conductive connection surface 4 are conductively abutted with the rotor structure in the wind turbine generator set, and the protrusion 7 is conductively abutted with the stator structure in the wind turbine generator set. The specific structure of the conductive contact finger refers to the aforementioned embodiment. Since the wind power collector ring adopts all the technical solutions of all the aforementioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the aforementioned embodiments, which will not be repeated here one by one.

[0038] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A conductive contact finger, characterized in that: include: a first conductive connection surface; A second conductive connection surface, the second conductive connection surface and the first conductive connection surface are located in the same plane; as well as A convex portion, both sides of which extend to form a first side and a second side that are oppositely arranged, the first side is connected to the first conductive connection surface, the second side is connected to the second conductive connection surface, and the convex portion is provided with at least one through hole.

2. The conductive contact finger according to claim 1, characterized in that: The convex portion has a convex portion inner wall and a convex portion outer wall, the convex portion inner wall and the convex portion outer wall have the same shape, and the convex portion outer wall has an area greater than that of the convex portion inner wall.

3. The conductive contact finger according to claim 1, characterized in that: An end surface of the protrusion away from the first conductive connection surface and the second conductive connection surface is an arc-shaped surface or a plane.

4. The conductive contact finger according to claim 1, characterized in that: The conductive contact finger is formed by cutting from one end of the tubular body to the other end along the axial direction of the tube.

5. The conductive contact finger according to claim 4, characterized in that: The tubular body is a thick copper tube.

6. The conductive contact finger according to claim 2, characterized in that: The through holes penetrate the inner wall of the convex portion and the outer wall of the convex portion, and the through holes are arranged at intervals along the length direction of the convex portion.

7. A wind turbine generator set, characterized in that: The wind turbine generator set includes the conductive contact finger as described in any one of claims 1 to 6, the first conductive connecting surface and the second conductive connecting surface are conductively abutted against the stator structure in the wind turbine generator set, and the protrusion is conductively abutted against the rotor structure in the wind turbine generator set; or, the first conductive connecting surface and the second conductive connecting surface are conductively abutted against the rotor structure in the wind turbine generator set, and the protrusion is conductively abutted against the stator structure in the wind turbine generator set.

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