Indicating device, yaw collecting ring and wind generating set

Abstract

The utility model relates to the technical field of yaw collecting ring maintenance, in particular to an indicating device, a yaw collecting ring and a wind generating set. An indicating device comprises an indicating lamp which is suitable for being arranged on the outer surface of a shell of a yaw collecting ring; the induction coil is arranged in the shell, the induction coil is connected with an indicating lamp circuit, the induction coil is suitable for being arranged on the periphery of the stator conducting bar in a sleeving mode, in the normal state, the stator conducting bar is powered on, the induction coil induces current to generate induction current, and the generated induction current lightens the indicating lamp. According to the indicating device, the yaw collecting ring and the wind generating set, the problem that safety accidents are prone to occurring in the overhaul and maintenance process of the yaw collecting ring is solved, and therefore the indicating device, the yaw collecting ring and the wind generating set are provided.

Description

Technical Field

[0001] The present invention relates to the technical field of yaw slip ring maintenance, and particularly to an indicating device, a yaw slip ring and a wind turbine generator set. Background Art

[0002] At present, the industrialization of yaw slip rings for wind turbine generator sets has initially taken shape. With the increase in their application, in order to ensure the better and safer operation of the products, daily maintenance and repair have become very important. However, since there is no live indication device on the slip ring, the safety factor is not high, which increases the risk of maintenance. At the same time, maintenance personnel cannot quickly and accurately determine whether the slip ring is live, and it is easy to cause safety accidents to personnel during the maintenance process. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that safety accidents are likely to occur during the maintenance of the existing yaw slip ring, and thus provide an indicating device, a yaw slip ring and a wind turbine generator set.

[0004] To solve the above problems, the present invention provides an indicating device, including:

[0005] An indicator lamp, which is adapted to be arranged on the outer surface of the housing of the yaw slip ring;

[0006] An induction coil, which is arranged inside the housing. The induction coil is connected to the indicator lamp by a circuit. The induction coil is adapted to be sleeved on the outer periphery of the stator busbar. In the normal state, the stator busbar is energized, and the induction coil senses the current to generate an induced current, and the generated induced current lights up the indicator lamp;

[0007] A rectifier is further arranged on the circuit between the indicator lamp and the induction coil, and the rectifier is arranged inside the housing;

[0008] An electronic lock is further included, which is arranged outside the housing, and the electronic lock is connected to the circuit between the rectifier and the indicator lamp.

[0009] Optionally, the electronic lock is arranged in parallel with the indicator lamp.

[0010] Optionally, the electronic lock includes a lock core and a lock head. The housing includes a cabinet body and a cabinet door. The lock head is arranged on the cabinet body, and the lock core is arranged on the cabinet door, and the lock core and the lock head are arranged corresponding to each other.

[0011] Optionally, a switch is arranged on the circuit between the rectifier and the induction coil.

[0012] A yaw slip ring includes the above-mentioned indicating device, and further includes a housing and a stator busbar, and the stator busbar is arranged inside the housing.

[0013] Optionally, it further includes a backplane, on which a rectifier is provided.

[0014] Optionally, a junction box is provided on the side of the housing, and an indicator light is provided on the junction box.

[0015] A wind turbine generator set includes the above-mentioned yaw collector ring.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The indicating device provided by the present invention includes: an indicator light adapted to be provided on the outer surface of the housing of the yaw collector ring; an induction coil provided inside the housing, the induction coil is connected to the indicator light in a circuit, and the induction coil is adapted to be sleeved on the outer periphery of the stator conductive bar inside the housing. In the normal state, the stator conductive bar is energized, and the induction coil senses the current to generate an induced current, and the generated induced current lights up the indicator light. By setting the indicator light, the lighting of the indicator light indicates that the stator conductive bar is energized, indicating that the yaw collector ring is charged, and the on-site personnel can directly observe it, improving the safety factor, reducing the maintenance risk, and at the same time avoiding the occurrence of personal safety accidents.

[0018] 2. For the indicating device provided by the present invention, a rectifier is further provided on the circuit between the indicator light and the induction coil. The rectifier is provided inside the housing, and the rectifier converts alternating current into direct current for the use of the indicator light.

[0019] 3. The indicating device provided by the present invention further includes an electronic lock. The electronic lock is provided outside the housing, and the electronic lock is connected to the circuit between the rectifier and the indicator light, and the housing is locked or opened through the electronic lock.

[0020] 4. For the indicating device provided by the present invention, the electronic lock and the indicator light are arranged in parallel to avoid mutual interference between the two.

[0021] 5. For the indicating device provided by the present invention, the electronic lock includes a lock core and a lock head. The housing includes a cabinet body and a cabinet door. The lock head is provided on the cabinet body, and the lock core is provided on the cabinet door, and the lock core and the lock head are correspondingly arranged. When the circuit is energized, the lock core of the electronic lock is inserted into the lock head to prevent maintenance personnel from accidentally opening the cabinet door; when the circuit is de-energized, the lock core of the electronic lock is separated from the lock head, and the cabinet door is opened.

[0022] 6. For the indicating device provided by the present invention, a switch is provided on the circuit between the rectifier and the induction coil. The switch controls whether the circuit is energized, facilitating maintenance personnel to control the opening and closing of the circuit through the switch.

[0023] 7. For the yaw collector ring provided by the present invention, due to adopting the indicating device described in any one of the above, it has the advantages described in any one of the above. It further includes a housing and a stator conductive bar, and the stator conductive bar is provided inside the housing to determine the relative position between the stator conductive bar and the housing.

[0024] 8. The yaw collector ring provided by the present invention further includes a back plate, on which a rectifier is provided. A junction box is provided on the side of the housing, and an indicator light is provided on the junction box to clarify the positions of the rectifier and the indicator light.

[0025] 9. Since the yaw collector ring provided by the present invention adopts the yaw collector ring described in any one of the above, it has the advantages described in any one of the above. Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the indicating device provided in the embodiment of the present invention;

[0028] Figure 2 It is a front view of the stator side junction box of the yaw collector ring provided in the embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the housing of the yaw collector ring provided in the embodiment of the present invention;

[0030] Figure 4 It is Figure 3 a partial enlarged view of the A position of

[0031] Description of the reference numerals: 1, induction coil; 2, indicator light; 3, rectifier; 4, circuit; 5, stator busbar; 6, switch; 7, lock head; 8, lock core; 9, housing; 91, cabinet body; 92, cabinet door; 10, back plate. Detailed Embodiments

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] As Figure 1 -4 shows a specific embodiment of the indicating device, including: an indicator light 2, an induction coil 1, and a rectifier 3.

[0037] As Figure 1 , Figure 3 shown, the indicator light 2 is adapted to be disposed on the outer surface of the housing 9 of the yaw collector ring. The induction coil 1 is disposed inside the housing 9. The induction coil 1 is connected to the indicator light 2 by a circuit 4. The induction coil 1 is adapted to be sleeved on the outer periphery of the stator busbar 5. As Figure 1 shown, a rectifier 3 is provided on the circuit 4 between the induction coil 1 and the indicator light 2, and the rectifier 3 is disposed inside the housing 9. In the normal state, the stator busbar 5 is energized, and the induction coil 1 induces a current to generate an induced current, and the generated induced current lights up the indicator light 2.

[0038] As Figure 1 , Figure 4 shown, it further includes an electronic lock disposed on the outer surface of the housing 9. The electronic lock includes a lock core 8 and a lock head 7, and the lock core 8 and the lock head 7 are correspondingly arranged. To realize the control of the circuit 4, it further includes a switch 6, and a switch 6 is provided on the circuit 4 between the rectifier 3 and the induction coil 1. It should be noted that the electronic lock and the indicator light 2 are arranged in parallel.

[0039] A yaw collector ring includes the above-mentioned indicating device. As Figure 2 andFigure 3 As shown in the figure, it further includes a housing 9 and a stator busbar. The stator busbar 5 is arranged inside the housing 9, and the induction coil 1 is wound around the stator busbar. As Figure 2 shown in the figure, it further includes a backplane 10, and a rectifier 3 is arranged on the backplane 10. As Figure 2 shown in the figure, a junction box is arranged on the side of the housing 9, and an indicator light 2 is arranged on the junction box. As Figure 3 shown in the figure, the housing 9 includes a cabinet body 91 and a cabinet door 92. The electronic lock includes a lock core 8 and a lock head 7. The lock head 7 is arranged on the cabinet body 91, and the lock core 8 is arranged on the cabinet door 92, and the lock core 8 and the lock head 7 are arranged corresponding to each other.

[0040] A wind turbine generator set includes the above-mentioned yaw collector ring.

[0041] A detection method for a yaw collector ring includes the following steps:

[0042] 1) In the normal state, the stator busbar 5 is energized, the induction coil 1 senses the current to generate an induced current, the generated induced current lights up the indicator light 2, and the lock core 8 of the electronic lock is inserted into the lock head 7;

[0043] 2) When a fault occurs, the stator busbar 5 is not energized, the induction coil 1 cannot sense the current and cannot generate an induced current, the indicator light 2 is in the off state, and the lock core 8 of the electronic lock is separated from the lock head 7.

[0044] The yaw collector ring provided by the present invention has the following advantages: (1) By setting the indicator light 2, the live indication of the yaw collector ring is realized, which is convenient for maintenance personnel to quickly and accurately determine whether the yaw collector ring is live, prevents safety accidents during maintenance of maintenance personnel, improves the safety factor, and reduces the maintenance cost; (2) By setting the electronic lock, the cabinet door 92 is in the closed state under normal conditions, avoiding misoperation by maintenance personnel; (3) By setting the switch 6, the management of the line 4 can be realized to a certain extent.

[0045] As an alternative implementation manner, the electronic lock and the indicator light 2 may also be connected in series.

[0046] Obviously, the above-mentioned embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An indicating device, characterized in that: include: An indicator light (2), the indicator light (2) being suitable for being arranged on the outer surface of a housing (9) of a yaw collector ring; An induction coil (1) is arranged in a housing (9), the induction coil (1) is connected to a circuit (4) of an indicator light (2), the induction coil (1) is suitable for being sleeved on the outer periphery of a stator conductive bar (5), and in a normal state, when the stator conductive bar (5) is energized, the induction coil (1) senses current to generate an induced current, and the generated induced current is used to light up the indicator light (2); A rectifier (3) is also provided on the line (4) between the indicator light (2) and the induction coil (1), and the rectifier (3) is arranged in the housing (9); It also includes an electronic lock, which is arranged outside the housing (9) and is connected to a line (4) arranged between the rectifier (3) and the indicator light (2).

2. The indicating device according to claim 1, characterized in that: The electronic lock and the indicator light (2) are arranged in parallel.

3. The indicating device according to claim 2, characterized in that: The electronic lock comprises a lock core (8) and a lock head (7); the housing (9) comprises a cabinet body (91) and a cabinet door (92); the lock head (7) is arranged on the cabinet body (91); the lock core (8) is arranged on the cabinet door (92); and the lock core (8) and the lock head (7) are arranged correspondingly.

4. The indicating device according to claim 1, characterized in that: A switch (6) is provided on the line (4) between the rectifier (3) and the induction coil (1).

5. A yaw collector ring, characterized in that: The indicating device comprises the indicating device according to any one of claims 1 to 4, and further comprises a housing (9) and a stator conductive bar (5), wherein the stator conductive bar (5) is arranged in the housing (9).

6. The yaw collector ring according to claim 5, characterized in that: It also comprises a back plate (10), on which a rectifier (3) is arranged.

7. The yaw collector ring according to claim 6, characterized in that: A junction box is provided on the side of the housing (9), and an indicator light (2) is provided on the junction box.

8. A wind turbine generator set, characterized in that: It comprises the yaw collector ring as described in any one of claims 5 to 7.

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