Collector ring brush holder assembly of phase modifier and collector ring assembly

Abstract

The utility model discloses a phase modifier collector ring brush holder assembly and a collector ring assembly, and relates to the technical field of electric brushes, the phase modifier collector ring brush holder assembly comprises a housing, the inner sides of the two sides of the housing are respectively provided with an installation plate, each installation plate is provided with a sliding sleeve used for installing an electric brush, and the sliding sleeve is provided with a sliding groove. The sliding sleeve is of a tubular structure which is fixed on the mounting plate and is obliquely arranged, and the lower end of the sliding sleeve faces the inner side of the housing; the upper end of the sliding sleeve is provided with internal threads, the electric brush is in sliding fit with the bottom side of the sliding sleeve, the upper end of the sliding sleeve is connected with a pressing cap through the internal threads, and an elastic cushion is clamped between the lower end face of the pressing cap and the upper end face of the electric brush; two sides of the housing are respectively provided with an operation window, the operation windows are used as operation channels for replacing electric brushes on the housing, each operation window is provided with a detachable cover plate, the cover plates are transparent plates, the collector ring assembly comprises a collector ring brush holder assembly, and the brush holder assembly provided by the scheme has the characteristic that the electric brushes are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of electric brushes, in particular to a phase shifter collector ring brush holder assembly and a collector ring assembly. Background Art

[0002] As a reactive power compensation device, the phase regulator is a synchronous motor that provides or absorbs reactive power to the power system. During use, the phase regulator can provide reactive power or absorb reactive power to the power system independently according to the specific needs of the power system. From the perspective of maintaining voltage level and power factor of the power grid, the phase regulator plays an important role in maintaining the stability of the power system and improving the quality of power supply.

[0003] During the normal operation of the phase regulator, the required excitation current needs to be passed through its rotor. The excitation system of the phase regulator usually includes a slip ring assembly. During use, the conductive rings and brushes on the slip ring assembly will heat up and wear. The specific heating temperature and severity of wear are affected by the size of the excitation current, the surface condition of the friction pair, etc. In order to ensure the reliability of the phase regulator, it is necessary to pay attention to the condition of the slip ring assembly during use and replace the wearing parts in time.

[0004] In the prior art, a slip ring assembly includes a conductive ring assembly mounted on a phase shifter rotor and a brush holder assembly mounted on a phase shifter housing or a base. The brush holder assembly is provided with a brush for electrically connecting to the conductive ring assembly. During operation of the slip ring assembly, a friction pair formed by a brush head and an outer side of the conductive ring serves as a conducting surface for the excitation current. In addition, the brush is usually arranged as a consumable part that is easily worn relative to the conductive ring. When the slip ring assembly cannot meet the use requirements well or its performance drops sharply, the performance of the slip ring assembly can be restored by replacing the brush.

[0005] In the daily maintenance of the slip ring assembly, brush replacement is an important part, so it is necessary to propose a slip ring assembly that is convenient for brush replacement. Utility Model Content

[0006] In view of the technical problem of proposing a slip ring assembly that is convenient for brush replacement, the utility model provides a phase shifter slip ring brush holder assembly and a slip ring assembly. In this solution, the slip ring assembly includes the brush holder assembly. The brush holder assembly proposed in this solution has the characteristic of convenient brush replacement.

[0007] In view of the above problems, the phase shifter collector ring brush holder assembly and the collector ring assembly provided by the utility model solve the problems through the following technical points: the phase shifter collector ring brush holder assembly comprises a cover shell, the inner sides of both sides of the cover shell are installed with mounting plates, each mounting plate is provided with a sliding sleeve for installing a brush, the sliding sleeve is a tubular structure fixed to the mounting plate and arranged obliquely, and the lower end of the sliding sleeve faces the inner side of the cover shell;

[0008] The upper end of the sliding sleeve is provided with an internal thread, the brush is slidably fitted on the bottom side of the sliding sleeve, the upper end of the sliding sleeve is connected with a pressure cap through the internal thread, and an elastic pad is clamped between the lower end surface of the pressure cap and the upper end surface of the brush;

[0009] Both sides of the housing are provided with operation windows, which serve as operation channels on the housing for replacing brushes, and each operation window is provided with a detachable cover plate, which is a transparent plate;

[0010] The dimensions of the sleeve satisfy:

[0011] The elastic pad and the brush can be assembled into the sliding sleeve from the upper end of the sliding sleeve;

[0012] The elastic pad and the brush can be detached from the sliding sleeve from the upper end of the sliding sleeve.

[0013] In this solution, the slip ring brush holder assembly is a component of the slip ring assembly, specifically providing a structure with a brush installed, and the brush is used to contact the conductive ring surface installed on the phase-shifting machine rotor to form an electrical connection circuit of the excitation system to provide excitation current for the rotor.

[0014] In this solution, the conductive structure (conductive ring and brush) on the collector ring assembly is located on the inner side of the cover, and the cover can provide a mounting base for the brush, provide a relatively closed space for the conductive structure to achieve dust protection for the friction pair, and form an inner space boundary through the cover to achieve stable cooling of the corresponding conductive structure by configuring a cold air system for the space; the mounting plate serves as a fixing seat for the sleeve, and the sleeve serves as a fixing seat for the brush, elastic pad and pressure cap, so that the brush can be installed as follows: the lower end of the brush is supported on the conductive ring, the brush and the conductive ring are electrically connected through contact, and the upper end of the brush The elastic pad is subjected to pressure from the pressure cap so that the brush and the conductive ring have a stable contact relationship, and under the action of the elastic pad, the pressure cap is prevented from loosening due to vibration during use, and the elastic rebound of the elastic pad allows the upper end of the brush to continue to be thrust toward the lower end of the brush, so that after the brush has a certain degree of wear, the matching relationship between the brush and the conductive ring can still be maintained without adjusting the position of the pressure cap on the axis of the sleeve, so that the brush is further compressed by the elastic pad under the action of abrasive particles, allowing the brush to have a certain amount of jumping, thereby reducing the wear rate of the brush and the conductive ring during use.

[0015] In addition, the structural features of this scheme include:

[0016] By arranging a transparent cover on the housing, the cover can be used as an observation window on the collector ring assembly when the operating window is closed, so that maintenance personnel can observe the internal conditions of the housing through the cover, for example, conveniently observe the surface conditions of the conductive ring, the amount of brush wear, etc.

[0017] This solution adopts a method in which the brush is slidably fitted in the sleeve, and the upper end of the brush is indirectly pressed on the lower end of the pressure cap through the elastic pad. When the brush needs to be replaced, the cover plate is first opened, and the operation window is used as an operation channel on the cover shell, and then the pressure cap and the elastic pad are removed from the upper end of the sleeve, and the connection between the brush and the corresponding wiring harness is removed, and the brush to be replaced is taken out from the upper end of the sleeve, and then the new brush is placed into the sleeve from the upper end of the sleeve, and then the elastic pad and the pressure cap are installed, and the brush is connected to the corresponding wiring harness. The size characteristics of the sleeve enable the upper end of the sleeve to be used as a removal end and an insertion end of structures such as the brush, so this solution is a technical solution for convenient replacement of the brush.

[0018] As a further technical solution of the phase shifter collector ring brush holder assembly:

[0019] In order to facilitate the connection between the brush and the wiring harness and reduce the requirement for the extension length of the brush relative to the sleeve, it is configured as follows: a notch is provided on the side surface of the lower end of the sleeve, and a wiring screw is also included which is threadedly connected to the brush, and the wiring screw is exposed in the notch. This solution is that the lower end of the sleeve is not a complete annular structure, so that the side surface of the brush is exposed at the notch position, and the wiring screw of the brush is arranged at the side surface position.

[0020] As a specific structural form and installation method of the mounting plate, the mounting plate is a groove-shaped structure with two bends;

[0021] The mounting plates on each side of the housing are:

[0022] One end of the mounting plate is fixed on the housing at the left side of the operating window, and the other end of the mounting plate is fixed on the housing at the right side of the operating window. The middle section between the two bends on the mounting plate faces the operating window. The middle section is provided with a plurality of sleeves, which are arranged at intervals along the length direction of the middle section. Each sleeve is provided with a brush, an elastic pad and a pressure cap. This scheme is to fix the mounting plate to the inner side of the housing through the two ends of the mounting plate, and to set the sleeve on the middle section between the bends of the mounting plate. The matching mode of the sleeve and the middle section can be that the sleeve passes through the middle section through the through hole on the middle section, and is fixed to the middle section by a nut connection or welding. The setting of having a plurality of sleeves on the middle section is intended to form a plurality of conductive paths through the brushes in each sleeve, and to match the brush setting mode, a plurality of conductive rings matching the brushes can be set in the rotor axis direction of the phase regulator. In optimal application, for the excitation current provided to the rotor, at least two conductive rings are configured for a single excitation current conductive path, and each conductive ring is configured with a brush, that is, the magnetic current can be transmitted to the rotor through any set of conductive rings and brushes of the ready-made electrical connection structure. In this way, when at least one set of electrical connection structures can meet the excitation current transmission requirements, even if the brushes on other electrical connection structures are replaced, the operating parameters of the phase regulator during the entire working cycle will not be affected.

[0023] In order to standardize the wiring in the housing, it is set as follows: each sleeve is equipped with a threading hole located on the middle section, and the threading hole passes through the inner and outer sides of the middle section. This solution is that the wire harness connected to each brush passes through the mounting plate through the threading hole, so as to use the threading hole to constrain the wire harness configured for each brush.

[0024] In order to facilitate the status detection of the corresponding conductive parts, it is configured as follows: a detection component is arranged on the inner side of the cover shell, and the detection component is used to detect the status of the conductive ring and / or the brush;

[0025] The state of the conductive ring includes a temperature state;

[0026] The state of the brush includes a temperature state and a vibration state. As a person skilled in the art, the temperature state is detected by a temperature sensor, and the vibration state is detected by a vibration sensor. In a specific implementation, the detection component includes a sensor and a sensor mounting seat, and the sensor mounting seat is fixed on the inner side of the cover top plate, and the sensor is detachably connected to the sensor mounting seat; as another implementation method, the detection component includes a sensor mounted on a mounting plate or a sliding sleeve.

[0027] In order to better seal the space inside the housing, provide better dust protection for the friction pair on the collector ring assembly, and make the flow field inside the housing more stable when the conductive ring and brush are cooled by air cooling, it is set as follows: the housing is a strip structure, and end plates are provided at both ends of the housing, and each end plate is provided with a rotor hole for the phase shifter rotor to pass through the end plate. In this solution, the end plate is used to make the end of the housing semi-closed, and the rotor hole serves as a channel for the phase shifter rotor to pass through the corresponding end plate.

[0028] To facilitate the fixing of the cover to the phase regulator base or the mounting seat, the cover is configured as follows: a base with connecting bolt holes is provided at the bottom of the cover. In a specific implementation, the cover is configured as an integrated casting structure including the base.

[0029] As a technical solution for providing forced air cooling for the heat generating components inside the housing, an induced draft fan is installed at one end of the housing, and the air inlet side of the induced draft fan is communicated with the inner space of the housing;

[0030] The other end of the housing is connected to a flat tube as an air inlet pipe, the outlet end of the flat tube is communicated with the inner space of the housing, the inlet end of the flat tube is connected to a filter box for filtering air, and the outlet end of the filter box is butt-jointed with the inlet end of the flat tube;

[0031] It also includes a cold medium pipeline passing through the filter box. In this solution, the induced draft fan is used as a power device for cooling air to flow inside the housing, and the cooling air enters the housing through the flat tube. The reason for using the flat tube is that under the same pipeline flow area, the outlet of the flat tube can cover a wider area, which is beneficial to the distribution range of the airflow field in the housing and the uniformity of the airflow at each position of the airflow field. The filter box is used to filter the air involved in cooling to prevent dust in the air from affecting the wear rate of the conductive ring and the brush. The cold medium pipeline is used to connect with the cooling medium (usually coolant or hydrogen) pipeline of the phase shifter, so as to use the cold medium pipeline to cool the air inside the filter to reduce the temperature of the air entering the flat tube, so as to achieve the purpose of strengthening the air cooling effect.

[0032] The present invention also relates to a phase shifter collector ring assembly, comprising a conductive ring and a collector ring brush holder assembly, wherein the collector ring brush holder assembly is a collector ring brush holder assembly as described in any one of the above items, and the lower end surface of the brush is supported on the outer surface of the conductive ring. The phase shifter collector ring assembly comprises the above collector ring brush holder assembly, which is a specific application of the collector ring brush holder assembly.

[0033] As a further technical solution of the phase shifter collector ring brush holder assembly:

[0034] In order to ensure the contact area between the brush and the conductive ring, it is configured as follows: the lower end surface of the brush is an arc-shaped surface that fits the outer surface of the conductive ring.

[0035] The utility model has the following beneficial effects:

[0036] The lower end of the brush is acted on by the pressure cap and the elastic pad, so that the brush and the conductive ring have a stable contact relationship, and under the action of the elastic pad, the pressure cap is prevented from loosening due to vibration during use;

[0037] The constraint method set on the upper end of the brush can utilize the elastic rebound of the elastic pad so that the upper end of the brush can continue to be pushed toward the lower end of the brush. After the brush is worn to a certain extent, the matching relationship between the brush and the conductive ring can still be maintained without adjusting the position of the pressure cap on the axis of the sliding sleeve.

[0038] The support mode of the elastic pad on the upper end of the brush can be realized as follows: under the action of abrasive particles, the elastic pad is further compressed to allow the brush to have a certain bounce, thereby reducing the wear rate of the brush and the conductive ring during use; in the process of tightening the pressure cap, excessive contact force between the brush and the conductive ring can be avoided;

[0039] The size characteristics of the sleeve and the assembly relationship of the brush enable the upper end of the sleeve to be used as a removal end and an insertion end for structures such as the brush, so this solution is a technical solution that facilitates the replacement of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the collector ring brush holder assembly described in this solution;

[0041] Figure 2 A cross-sectional view of a specific application embodiment of the slip ring assembly described in this scheme;

[0042] Figure 3 for Figure 2 A cross-sectional view of the relevant structure of the middle sleeve part;

[0043] Figure 4 This is a top view of a specific embodiment of the slip ring assembly described in this solution.

[0044] The reference numerals in the figure are: 1, base, 2, cover, 3, cover plate, 4, rotor hole, 5, operation window, 6, mounting plate, 7, threading hole, 8, pressure cap, 9, conductive ring, 10, sliding sleeve, 11, brush, 12, elastic pad, 13, wiring screw, 14, detection component, 15, induced draft fan, 16, flat tube, 17, cold medium pipeline, 18, filter box. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the embodiments, but the present invention is not limited to the following embodiments:

[0046] Embodiment 1:

[0047] like Figures 1 to 4 As shown, the phase shifter collector ring brush holder assembly includes a housing 2, and mounting plates 6 are installed on the inner sides of both sides of the housing 2. Each mounting plate 6 is provided with a sleeve 10 for mounting a brush 11. The sleeve 10 is a tubular structure fixed on the mounting plate 6 and arranged obliquely, and the lower end of the sleeve 10 faces the inner side of the housing 2;

[0048] The upper end of the sliding sleeve 10 is provided with an internal thread, the brush 11 is slidably fitted on the bottom side of the sliding sleeve 10, the upper end of the sliding sleeve 10 is connected with a pressure cap 8 through the internal thread, and an elastic pad 12 is sandwiched between the lower end surface of the pressure cap 8 and the upper end surface of the brush 11;

[0049] Both sides of the housing 2 are provided with operation windows 5, which serve as operation channels for replacing the brushes 11 on the housing 2. Each operation window 5 is provided with a detachable cover plate 3, which is a transparent plate.

[0050] The dimensions of the sliding sleeve 10 satisfy:

[0051] The elastic pad 12 and the brush 11 can be assembled into the sliding sleeve 10 from the upper end of the sliding sleeve 10;

[0052] The elastic pad 12 and the brush 11 can be detached from the upper end of the sliding sleeve 10 .

[0053] In this solution, the slip ring brush holder assembly is a component of the slip ring assembly, specifically providing a structure with a brush 11 installed, and the brush 11 is used to contact the surface of the conductive ring 9 installed on the phase-shifting machine rotor to form an electrical connection circuit of the excitation system to provide excitation current for the rotor.

[0054] In this solution, the conductive structure (conductive ring 9 and brush 11) on the collector ring assembly is located on the inner side of the cover 2. The cover 2 can provide a mounting base for the brush 11, provide a relatively closed space for the conductive structure to achieve dust prevention of the friction pair, and form an inner space boundary through the cover 2 to achieve stable cooling of the corresponding conductive structure by configuring a cold air system for the space; the mounting plate 6 serves as a fixing seat for the sleeve 10, and the sleeve 10 serves as a fixing seat for the brush 11, the elastic pad 12 and the pressure cap 8, so that the brush 11 can be installed as follows: the lower end of the brush 11 is supported on the conductive ring 9, the brush 11 and the conductive ring 9 are electrically connected through contact, and the upper end of the brush 11 is connected through The elastic pad 12 is subjected to pressure from the pressure cap 8 so that the brush 11 and the conductive ring 9 have a stable contact relationship, and under the action of the elastic pad 12, the pressure cap 8 is prevented from loosening due to vibration during use, and the elastic pad 12 elastically rebounds so that the upper end of the brush 11 can continue to be thrust toward the lower end of the brush 11, so that after the brush 11 has a certain degree of wear, without adjusting the position of the pressure cap 8 on the axis of the sleeve 10, the matching relationship between the brush 11 and the conductive ring 9 can still be maintained, so that the brush 11 is further compressed by the elastic pad 12 under the action of abrasive particles, etc., allowing the brush 11 to have a certain amount of jumping, thereby reducing the wear rate of the brush 11 and the conductive ring 9 during use.

[0055] In addition, the structural features of this scheme include:

[0056] By arranging a transparent cover plate 3 on the housing 2, the cover plate 3 can be used as an observation window on the collector ring assembly when the operation window 5 is closed, so that maintenance personnel can observe the internal conditions of the housing 2 through the cover plate 3, for example, conveniently observe the surface conditions of the conductive ring 9, the wear amount of the brush 11, etc.;

[0057] In this solution, the brush 11 is slidably fitted in the sleeve 10, and the upper end of the brush 11 is indirectly pressed on the lower end of the pressure cap 8 through the elastic pad 12. When the brush 11 needs to be replaced, the cover plate 3 is first opened, and the operation window 5 is used as an operation channel on the cover shell 2. Then, the pressure cap 8 and the elastic pad 12 are removed from the upper end of the sleeve 10, and the connection between the brush 11 and the corresponding wiring harness is removed. Then, the brush 11 to be replaced is taken out from the upper end of the sleeve 10, and then the new brush 11 is placed into the sleeve 10 from the upper end of the sleeve 10, and then the elastic pad 12 and the pressure cap 8 are installed, and the brush 11 is connected to the corresponding wiring harness. The size characteristics of the sleeve 10 enable the upper end of the sleeve 10 to be used as a removal end and an insertion end of structures such as the brush 11. Therefore, this solution is a technical solution for conveniently replacing the brush 11.

[0058] Embodiment 2:

[0059] This embodiment is further refined on the basis of embodiment 1:

[0060] In order to facilitate the connection between the brush 11 and the wiring harness and reduce the requirement for the extension length of the brush 11 relative to the sleeve 10, it is configured as follows: a notch is provided on the side surface of the lower end of the sleeve 10, and a wiring screw 13 threadedly connected to the brush 11 is also included, and the wiring screw 13 is exposed in the notch. This solution is that the lower end of the sleeve 10 is not a complete annular structure, so that the side surface of the brush 11 is exposed at the notch position, and the wiring screw 13 of the brush 11 is arranged at the side surface position.

[0061] Embodiment 3:

[0062] This embodiment is further refined on the basis of embodiment 1:

[0063] As a specific structural form and installation method of the mounting plate 6, the mounting plate 6 is a groove-shaped structure with two bends;

[0064] The mounting plates 6 on each side of the housing 2 are:

[0065] One end of the mounting plate 6 is fixed on the housing 2 at the left side of the operating window 5, and the other end of the mounting plate 6 is fixed on the housing 2 at the right side of the operating window 5. The middle section between the two bends on the mounting plate 6 faces the operating window 5. The middle section is provided with a plurality of sleeves 10, which are arranged at intervals along the length direction of the middle section. Each sleeve 10 is provided with a brush 11, an elastic pad 12 and a pressure cap 8. This scheme is to fix the mounting plate 6 to the inner side of the housing 2 through the two ends of the mounting plate 6, and to arrange the sleeve 10 on the middle section between the bends of the mounting plate 6. The matching mode of the sleeve 10 and the middle section can be that the sleeve 10 passes through the middle section through the through hole on the middle section, and is fixed to the middle section by a nut connection or welding. The setting of the middle section with a plurality of sleeves 10 is intended to form a plurality of conductive paths through the brushes 11 in each sleeve 10. To match the setting mode of the brush 11, a plurality of conductive rings 9 matching the brush 11 can be arranged in the rotor axis direction of the phase regulator. In a more optimal application, for the excitation current provided to the rotor, at least two conductive rings 9 are configured for a single excitation current conductive path, and each conductive ring 9 is configured with a brush 11, that is, the magnetic current can be transmitted to the rotor through any set of ready-made electrical connection structures of conductive rings 9 and brushes 11. In this implementation, when at least one set of electrical connection structures can meet the excitation current transmission requirements, even if the brushes 11 on other electrical connection structures are replaced, the operating parameters of the phase regulator during the entire working cycle will not be affected.

[0066] Embodiment 4:

[0067] This embodiment is further refined on the basis of Embodiment 3:

[0068] In order to standardize the wiring in the housing 2, it is set as follows: each sleeve 10 is provided with a threading hole 7 located on the middle section, and the threading hole 7 passes through the inner and outer sides of the middle section. This solution is that the wire harness connected to each brush 11 passes through the threading hole 7 and passes through the mounting plate 6, so that the wire harness configured for each brush 11 is constrained by the threading hole 7.

[0069] Embodiment 5:

[0070] This embodiment is further refined on the basis of embodiment 1:

[0071] In order to facilitate the status detection of the corresponding conductive parts, it is set as follows: a detection component 14 is arranged on the inner side of the cover 2, and the detection component 14 is used to detect the status of the conductive ring 9 and / or the brush 11;

[0072] The state of the conductive ring 9 includes a temperature state;

[0073] The state of the brush 11 includes a temperature state and a vibration state. As a person skilled in the art, the temperature state is detected by a temperature sensor, and the vibration state is detected by a vibration sensor. In a specific implementation, the detection component 14 includes a sensor and a sensor mounting seat, and at the same time, the sensor mounting seat is fixed on the inner side of the top plate of the cover shell 2, and the sensor is detachably connected to the sensor mounting seat; as another implementation method, the detection component 14 includes a sensor mounted on the mounting plate 6 or the sliding sleeve 10.

[0074] Embodiment 6:

[0075] This embodiment is further refined on the basis of embodiment 1:

[0076] In order to better seal the space inside the housing 2, provide better dust protection for the friction pair on the collector ring assembly, and make the flow field inside the housing 2 more stable when the conductive ring 9 and the brush 11 are cooled by air cooling, it is set as follows: the housing 2 is a strip structure, and end plates are provided at both ends of the housing 2, and each end plate is provided with a rotor hole 4 for the phase shifter rotor to pass through the end plate. In this solution, the end plate is used to make the end of the housing 2 semi-closed, and the rotor hole 4 serves as a channel for the phase shifter rotor to pass through the corresponding end plate.

[0077] Embodiment 7:

[0078] This embodiment is further refined on the basis of embodiment 1:

[0079] To facilitate the fixing of the cover 2 to the condenser base 1 or to the mounting seat, it is configured as follows: a base 1 having a connection bolt hole is provided at the bottom of the cover 2. In a specific implementation, it is configured as follows: the cover 2 is an integral casting structure including the base 1.

[0080] As a technical solution for providing forced air cooling for the heat generating components inside the housing 2, an induced draft fan 15 is installed at one end of the housing 2, and the air inlet side of the induced draft fan 15 is communicated with the inner space of the housing 2;

[0081] The other end of the housing 2 is connected to a flat tube 16 as an air inlet pipe, the outlet end of the flat tube 16 is communicated with the inner space of the housing 2, the inlet end of the flat tube 16 is connected to a filter box 18 for filtering air, and the outlet end of the filter box 18 is butt-jointed with the inlet end of the flat tube 16;

[0082] It also includes a cold medium pipeline 17 passing through the filter box 18. In this solution, the induced draft fan 15 is used as a power device for cooling air to flow inside the housing 2, and the cooling air enters the housing 2 through the flat tube 16. The reason for using the flat tube 16 is that under the same pipeline flow area, the outlet of the flat tube 16 can cover a wider area, which is beneficial to the distribution range of the airflow field in the housing 2 and the uniformity of the airflow at each position of the airflow field. The filter box 18 is used to filter the air involved in cooling to prevent dust in the air from affecting the wear speed of the conductive ring 9 and the brush 11. The cold medium pipeline 17 is used to dock with the cooling medium (usually coolant or hydrogen) pipeline of the phase shifter, so as to use the cold medium pipeline 17 to cool the air inside the filter to reduce the temperature of the air entering the flat tube 16, so as to achieve the purpose of strengthening the air cooling effect.

[0083] Embodiment 8:

[0084] Based on Example 1, this embodiment provides a phase shifter collector ring assembly, including a conductive ring 9 and a collector ring brush holder assembly, wherein the collector ring brush holder assembly is the collector ring brush holder assembly described in Example 1, and the lower end surface of the brush 11 is supported on the outer surface of the conductive ring 9. The phase shifter collector ring assembly includes the collector ring brush holder assembly provided in Example 1, which is a specific application of the collector ring brush holder assembly.

[0085] Embodiment 9:

[0086] This embodiment is further refined on the basis of Embodiment 8:

[0087] In order to ensure the contact area between the brush 11 and the conductive ring 9 , it is configured as follows: the lower end surface of the brush 11 is an arc-shaped surface that fits the outer surface of the conductive ring 9 .

[0088] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, other embodiments derived without departing from the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A phase regulator collector ring brush holder assembly, comprising a housing (2), characterized in that: Mounting plates (6) are installed on the inner sides of both sides of the housing (2), and each mounting plate (6) is provided with a sliding sleeve (10) for mounting a brush (11), and the sliding sleeve (10) is a tubular structure fixed on the mounting plate (6) and arranged obliquely, with the lower end of the sliding sleeve (10) facing the inner side of the housing (2); The upper end of the sliding sleeve (10) is provided with an internal thread, the brush (11) is slidably fitted on the bottom side of the sliding sleeve (10), the upper end of the sliding sleeve (10) is connected to a pressure cap (8) via the internal thread, and an elastic pad (12) is clamped between the lower end surface of the pressure cap (8) and the upper end surface of the brush (11); Both sides of the housing (2) are provided with operating windows (5), the operating windows (5) serving as operating channels on the housing (2) for replacing brushes (11), each operating window (5) being provided with a detachable cover plate (3), the cover plate (3) being a transparent plate; The dimensions of the sliding sleeve (10) satisfy: The elastic pad (12) and the brush (11) can be assembled into the sliding sleeve (10) from the upper end of the sliding sleeve (10); The elastic pad (12) and the brush (11) can be detached from the sliding sleeve (10) from the upper end of the sliding sleeve (10).

2. The phase regulator collector ring brush holder assembly according to claim 1, characterized in that: The lower end side surface of the sliding sleeve (10) is provided with a notch, and also includes a wiring screw (13) threadedly connected to the brush (11), and the wiring screw (13) is exposed in the notch.

3. The phase regulator collector ring brush holder assembly according to claim 1, characterized in that: The mounting plate (6) is a groove-shaped structure with two bends; The mounting plates (6) on each side of the housing (2) are: One end of the mounting plate (6) is fixed on the cover (2) at a position on the left side of the operating window (5), and the other end of the mounting plate (6) is fixed on the cover (2) at a position on the right side of the operating window (5). The middle section between the two bends on the mounting plate (6) faces the operating window (5). A plurality of sliding sleeves (10) are arranged on the middle section. The sliding sleeves (10) are arranged at intervals along the length direction of the middle section. Each sliding sleeve (10) is provided with a brush (11), an elastic pad (12) and a pressure cap (8).

4. The phase regulator collector ring brush holder assembly according to claim 3, characterized in that: Each sliding sleeve (10) is provided with a threading hole (7) located on the middle section, and the threading hole (7) passes through the inner and outer sides of the middle section.

5. The phase regulator collector ring brush holder assembly according to claim 1, characterized in that: A detection component (14) is arranged on the inner side of the housing (2), and the detection component (14) is used to detect the state of the conductive ring (9) and / or the brush (11); The state of the conductive ring (9) includes a temperature state; The state of the brush (11) includes a temperature state and a vibration state.

6. The phase modulator collector ring brush holder assembly according to any one of claims 1 to 5, characterized in that: The cover (2) is a strip-shaped structure, and end plates are provided at both ends of the cover (2), and each end plate is provided with a rotor hole (4) for the phase modulator rotor to pass through the end plate; The bottom of the cover shell (2) is provided with a base (1) having connection bolt holes.

7. The phase modulator collector ring brush holder assembly according to claim 1, characterized in that: An induced draft fan (15) is installed at one end of the casing (2), and the air inlet side of the induced draft fan (15) is in communication with the inner space of the casing (2); The other end of the housing (2) is connected to a flat tube (16) serving as an air inlet pipe, the outlet end of the flat tube (16) is in communication with the inner space of the housing (2), the inlet end of the flat tube (16) is connected to a filter box (18) for filtering air, and the outlet end of the filter box (18) is butt-jointed with the inlet end of the flat tube (16); It also includes a cold medium pipeline (17) passing through the filter box (18).

8. A phase shifter slip ring assembly, comprising a conductive ring (9) and a slip ring brush holder assembly, characterized in that: The collector ring brush holder assembly is the collector ring brush holder assembly according to any one of claims 1 to 7, and the lower end surface of the brush (11) is supported on the outer surface of the conductive ring (9).

9. The phase modulator collector ring brush holder assembly according to claim 8, characterized in that: The lower end surface of the brush (11) is an arc-shaped surface that fits the outer surface of the conductive ring (9).

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