Railway traction power supply capacitor compensation module for improving power supply stability

Abstract

This utility model provides a railway traction power supply capacitor compensation module to improve power supply stability, relating to the field of capacitor compensation technology. It includes a support mounting frame and multiple compensation capacitors arranged in a row. The bottom of each compensation capacitor is fixedly connected to a base plate, with both sides of the base plate slidingly engaging with grooves on two track plates. Two L-shaped mounting plates are symmetrically welded to the bottom of the two track plates, and U-shaped positioning frames are slidably mounted through these L-shaped mounting plates. A drive rod is slidably mounted through a horizontal mounting rod by a spring push. A connecting rod rotatably connects the drive rod to the U-shaped positioning frame, and the first end of the drive rod slides through a horizontal support rod, with a rectangular handle fixedly connected to the first end of the drive rod. In this utility model, simply sliding the drive rod inwards and outwards causes the U-shaped positioning frame to slide up and down, engaging or disengaging with the base plate, locking or unlocking the compensation capacitor, facilitating convenient and quick assembly and disassembly of the compensation capacitor.

Description

Technical Field

[0001] This utility model relates to the field of capacitor compensation technology, and in particular to a capacitor compensation module for railway traction power supply that improves power supply stability. Background Technology

[0002] Railway traction loads exhibit significant fluctuations and nonlinear characteristics. During train startup, acceleration, and braking, the load can change drastically in a short period, causing large fluctuations in the traction network voltage, and even triggering sudden voltage drops or rises. Railway traction power supply capacitor compensation modules can effectively solve these problems and are therefore widely used in railway traction power supply.

[0003] In existing capacitor compensation modules, the compensation capacitors are mostly directly fixed to the support mounting frame in the compensation cabinet using threaded locking components. Specifically, the threaded locking components fix the compensation capacitor by locking its base plate to the support mounting frame. However, the threaded locking components, located deep inside the compensation cabinet near the back panel, are obscured by two adjacent compensation capacitors in the confined space inside the compensation cabinet, making it inconvenient to tighten or loosen them, thus affecting the ease of installation and removal of the compensation capacitors. Utility Model Content

[0004] In view of this, the present invention provides a railway traction power supply capacitor compensation module to improve power supply stability, so as to solve the problem that the disassembly and assembly of compensation capacitors is relatively troublesome and inconvenient.

[0005] The technical solution proposed in this utility model is as follows: a railway traction power supply capacitor compensation module to improve power supply stability, specifically including a support mounting frame and multiple compensation capacitors arranged in a row. The support mounting frame is composed of two horizontal support rods and two longitudinal mounting plates symmetrically welded between the two ends of the two horizontal support rods. Multiple sets of track plates are welded to the top of the two horizontal support rods, and each set of track plates consists of two symmetrically arranged track plates. A sliding groove is opened on the opposite side of each of the two track plates. The bottom end of the compensation capacitor is fixedly connected to a base plate, and the two sides of the base plate are respectively connected to two... The track plate has a sliding groove for sliding engagement; two L-shaped mounting plates are symmetrically welded to the bottom of the two track plates, and U-shaped positioning frames are slidably mounted on the two L-shaped mounting plates. The two vertical insertion shafts of the U-shaped positioning frames are inserted into the two track plates and the base plate; horizontal mounting rods are welded to the two L-shaped mounting plates, and drive rods are slidably mounted on the horizontal mounting rods in the form of spring push; a connecting rod is rotatably connected between the drive rod and the U-shaped positioning frame, and the first end of the drive rod is slidably engaged with a horizontal bearing rod. A rectangular handle frame is fixed to the first end of the drive rod.

[0006] Furthermore, a rectangular transmission frame is fixedly connected to the tail end of the drive rod, and the two ends of the connecting rod are rotatably connected to the middle part of the horizontal side axis of the rectangular transmission frame and the U-shaped positioning frame, respectively.

[0007] Furthermore, a spring that pushes the drive rod is fitted onto the drive rod and compressed and clamped between the rectangular transmission frame and the horizontal mounting rod.

[0008] Furthermore, the compensation capacitor has three terminals arranged at its top, with power lines connected to the terminals. The compensation capacitor is connected in parallel to the railway traction power supply circuit through the three power lines.

[0009] Furthermore, the two horizontally placed support rods are spaced apart in the longitudinal direction and staggered in the vertical direction.

[0010] Furthermore, the capacitor compensation module is installed as a whole in the compensation cabinet, and the two vertical mounting plates are fixedly connected to the two vertical walls of the compensation cabinet respectively.

[0011] The railway traction power supply capacitor compensation module for improving power supply stability provided by this utility model has the following beneficial effects:

[0012] 1. The drive rod, connecting rod, and U-shaped positioning frame are connected to form a crank-slider mechanism. Through this mechanism, the U-shaped positioning frame can be driven to slide up and down to engage or disengage with the base plate by simply sliding the drive rod inward and outward. This locks or unlocks the compensation capacitor, making it convenient and quick to install and remove the compensation capacitor. Compared with the existing technology where the compensation capacitor is fixed to the support mounting frame by locking the base plate with a threaded locking component, this avoids the threaded component located deep inside the compensation cabinet and close to the back plate of the compensation cabinet being blocked and restricted in the confined space between two adjacent compensation capacitors, making it inconvenient to tighten or loosen, and thus affecting the ease of installation and removal of the compensation capacitor.

[0013] 2. The drive rod extends towards the front side support of the compensation cabinet, and its head end is connected to a horizontal support rod near the front side of the compensation cabinet. This allows the rectangular handle frame fixed to the head end of the drive rod to be set in the open space inside the front side opening of the compensation cabinet, so that the hand can directly hold the rectangular handle frame, slide and drive the drive rod to unlock and lock the compensation capacitor. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram showing the overall installation and usage status of this utility model is provided.

[0018] Figure 2 A schematic diagram of the overall structure of this utility model is shown;

[0019] Figure 3 A bottom-side view of the entire utility model is shown;

[0020] Figure 4 A schematic diagram showing the disassembled state of the compensation capacitor in this utility model is shown;

[0021] Figure 5 A schematic diagram showing the installation position of the drive rod in this utility model is provided.

[0022] Figure 6 A schematic diagram showing the installation position of the U-shaped positioning frame in this utility model is provided.

[0023] Figure 7 A schematic diagram of the drive rod and the U-shaped positioning frame in this utility model is shown.

[0024] List of reference numerals in the attached diagram:

[0025] 1. Load-bearing mounting bracket; 101. Horizontal load-bearing rod; 102. Vertical mounting plate; 103. Track plate; 104. L-shaped mounting plate; 105. U-shaped positioning frame; 106. Horizontal mounting rod;

[0026] 2. Compensating capacitor; 201. Terminal block; 202. Power cord; 203. Base plate;

[0027] 3. Drive rod; 301. Rectangular handlebar frame; 302. Rectangular transmission frame; 303. Connecting rod;

[0028] 4. Compensation cabinet. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please refer to Figures 1 to 7 Example 1:

[0031] This embodiment proposes a railway traction power supply capacitor compensation module to improve power supply stability, including a support mounting frame 1 and multiple compensation capacitors 2 arranged in various locations. The support mounting frame 1 is composed of two horizontal support rods 101 and two longitudinal mounting plates 102 symmetrically welded between the two ends of the two horizontal support rods 101. Multiple sets of track plates 103 are welded to the top of the two horizontal support rods 101, and each set of track plates 103 is composed of two symmetrically arranged track plates 103. A sliding groove is opened on the opposite side of each of the two track plates 103. The bottom end of the compensation capacitor 2 is fixedly connected to a base plate 203, and the two sides of the base plate 203 slide in cooperation with the sliding grooves on the two track plates 103. Two L-shaped mounting plates 104 are symmetrically welded to the bottom of the track plate 103. A U-shaped positioning frame 105 is slidably mounted on the two L-shaped mounting plates 104. The top parts of the two vertical shafts of the U-shaped positioning frame 105 are inserted and connected to the two sides of the track plate 103 and the base plate 203. A horizontal mounting rod 106 is welded to the two L-shaped mounting plates 104. A drive rod 3 is slidably mounted on the middle part of the horizontal mounting rod 106 in the form of a spring push. A connecting rod 303 is rotatably connected between the drive rod 3 and the U-shaped positioning frame 105. The first end of the drive rod 3 is slidably connected to a horizontal bearing rod 101. A rectangular handle frame 301 is fixed to the first end of the drive rod 3.

[0032] Preferably, the tail end of the drive rod 3 is fixedly connected to a rectangular transmission frame 302, and the two ends of the connecting rod 303 are rotatably connected to the middle part of the rectangular transmission frame 302 and the horizontal side shaft of the U-shaped positioning frame 105, respectively.

[0033] Preferably, the spring that pushes the drive rod 3 is fitted onto the drive rod 3 and is compressed and clamped between the rectangular transmission frame 302 and the horizontal mounting rod 106.

[0034] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:

[0035] The top of the compensation capacitor 2 has three terminals 201, and power lines 202 are connected to the terminals 201. The compensation capacitor 2 is connected in parallel to the railway traction power supply circuit through the three power lines 202. The two horizontal support rods 101 are spaced apart in the longitudinal direction and staggered in the vertical direction. The capacitor compensation module is installed in the compensation cabinet 4. The two vertical mounting plates 102 are fixedly connected to the two vertical boxes of the compensation cabinet 4 respectively.

[0036] The working principle, specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in realizing this technical solution will be described and explained in detail below:

[0037] Capacitor compensation modules can provide capacitive reactive power to offset the reactive power demand of inductive loads, reduce the transmission loss of reactive power in transmission lines, and improve the power factor to a reasonable range (usually ≥0.9), thereby stabilizing the traction network voltage and avoiding voltage fluctuations caused by reactive power deficit.

[0038] When the U-shaped positioning frame 105 is inserted into the base plate 203, the compensation capacitor 2 can be inserted and fixed between the two track plates 103. The drive rod 3, connecting rod 303 and U-shaped positioning frame 105 are connected to form a crank-slider mechanism. Through this mechanism, the U-shaped positioning frame 105 can be driven to slide up and down to insert into or separate from the base plate 203 by simply sliding the drive rod 3 inward and outward. This locks or unlocks the compensation capacitor 2, making it convenient and quick to install and remove the compensation capacitor 2. Compared with the existing technology where the compensation capacitor 2 is fixed to the base plate 203 by a threaded locking component, this avoids the threaded component located deep inside the compensation cabinet 4 and close to the back plate of the compensation cabinet 4 being blocked and restricted in the confined space between two adjacent compensation capacitors 2, making it inconvenient to tighten or loosen, and thus affecting the ease of installation and removal of the compensation capacitor 2.

[0039] The spring on the rectangular handle 301 can push and position the drive rod 3 in the inner sliding position close to the back plate of the compensation cabinet 4, so that the U-shaped positioning frame 105 is kept in the upper sliding and plugging positioning position.

[0040] The sliding drive operation of the drive rod 3 can be manually executed through the rectangular handle 301. The drive rod 3 extends towards the front side support of the compensation cabinet 4, and its head end is connected to a horizontal support rod 101 near the front side of the compensation cabinet 4. This allows the rectangular handle 301 fixed to the head end of the drive rod 3 to be placed in the open space inside the front side opening of the compensation cabinet 4, making it convenient for the hand to directly hold the rectangular handle 301 and slide the drive rod 3 to unlock and lock the compensation capacitor 2.

[0041] The following points should be noted in this article:

[0042] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0043] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A railway traction power supply capacitor compensation module for improving power supply stability, comprising a bearing mounting frame (1) and multiple compensation capacitors (2) arranged in a row, wherein the bearing mounting frame (1) is composed of two horizontal bearing rods (101) and two vertical mounting plates (102) symmetrically welded between the two ends of the two horizontal bearing rods (101); Its features are, Multiple sets of track plates (103) are welded to the top of the two horizontal bearing rods (101). Each set of track plates (103) consists of two symmetrically arranged track plates (103). A sliding groove is provided on the opposite side of each track plate (103). The bottom end of the compensation capacitor (2) is fixedly connected to a base plate (203). The two sides of the base plate (203) slide in cooperation with the sliding grooves on the two track plates (103). Two L-shaped mounting plates (104) are symmetrically welded to the bottom of the two track plates (103). A U-shaped positioning frame is slidably installed through the two L-shaped mounting plates (104). (105), the two vertical insertion shafts of the U-shaped positioning frame (105) are inserted and connected to the two track plates (103) and the base plate (203); the two L-shaped mounting plates (104) are welded with horizontal mounting rods (106), and the horizontal mounting rods (106) are slidably installed through the drive rods (3) in the form of spring push; the drive rods (3) and the U-shaped positioning frame (105) are rotatably connected by a connecting rod (303), the first end of the drive rods (3) is slidably connected to a horizontal bearing rod (101), and the first end of the drive rods (3) is fixedly connected to a rectangular handle frame (301).

2. The railway traction power supply capacitor compensation module for improving power supply stability according to claim 1, characterized in that, The tail end of the drive rod (3) is fixedly connected to a rectangular transmission frame (302), and the two ends of the connecting rod (303) are rotatably connected to the middle part of the horizontal side shaft of the rectangular transmission frame (302) and the U-shaped positioning frame (105), respectively.

3. The railway traction power supply capacitor compensation module for improving power supply stability according to claim 1, characterized in that, A spring that pushes the drive rod (3) is fitted onto the drive rod (3) and is compressed and clamped between the rectangular transmission frame (302) and the horizontal mounting rod (106).

4. The railway traction power supply capacitor compensation module for improving power supply stability according to claim 1, characterized in that, The compensation capacitor (2) has three terminals (201) arranged at its top. Power lines (202) are connected to the terminals (201). The compensation capacitor (2) is connected in parallel to the railway traction power supply circuit through the three power lines (202).

5. The railway traction power supply capacitor compensation module for improving power supply stability according to claim 1, characterized in that, The two horizontal support rods (101) are spaced apart in the longitudinal direction and staggered in the vertical direction.

6. The railway traction power supply capacitor compensation module for improving power supply stability according to claim 1, characterized in that, The capacitor compensation module is installed in the compensation cabinet (4), and the two vertical mounting plates (102) are fixedly connected to the two vertical walls of the compensation cabinet (4).

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