Capacitor support

Abstract

The utility model relates to a capacitor support which comprises a support body, a supporting seat and a connecting terminal. The frame body is provided with a preset cavity, the capacitor is suitable for being installed in the preset cavity, a connecting terminal is installed on the side wall of the frame body, the capacitor is suitable for being electrically connected with one end of the connecting terminal, and the capacitor is electrically connected with electrical equipment through the connecting terminal; an elastic buffering part is arranged at one end of the supporting seat, the frame body is connected with the supporting seat through the elastic buffering part, and the supporting seat is suitable for being installed on the ground. Compared with an existing capacitor support, the capacitor support can reduce the adverse effect of mechanical vibration of the capacitor on the stability of the overall installation position of the capacitor support, and therefore wrong displacement of the whole device relative to the static ground is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of power equipment, and in particular to a capacitor bracket. Background Art

[0002] With my country's continued investment in and research and development of high-voltage and ultra-high-voltage transmission projects, an increasing number of these projects are being approved for construction. Converter stations are a crucial component of these systems, and capacitors are a crucial element. To facilitate installation and centralized management, capacitors are typically installed on the same mounting base or bracket within the same area within power-consuming locations, such as converter stations.

[0003] The operation of the capacitor itself will cause mechanical vibration of the capacitor, and will also drive the mounting bracket to vibrate, causing the entire bracket to shift, which is not conducive to the support, limit and installation fixing functions of the bracket.

[0004] Therefore, how to reduce the adverse effects of capacitor mechanical vibration on the stability of the bracket installation position, thereby avoiding incorrect displacement of the entire bracket relative to the stationary ground, has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to reduce the adverse effects of mechanical vibration of the capacitor on the stability of the bracket installation position, thereby avoiding incorrect displacement of the entire bracket relative to the stationary ground, the present application provides a capacitor bracket.

[0006] The present application provides a capacitor bracket, comprising:

[0007] Frame, support base and connection terminals;

[0008] The frame is provided with a preset cavity, the capacitor is suitable for being installed in the preset cavity, the side wall of the frame is provided with the connecting terminal, the capacitor is suitable for being electrically connected to one end of the connecting terminal, and is electrically connected to the electrical device through the connecting terminal;

[0009] An elastic buffer portion is provided at one end of the support base, and the frame is connected to the support base via the elastic buffer portion. The support base is suitable for being installed on the ground.

[0010] The present application installs the capacitor by setting up a frame, provides stable support for the frame through the support base on the ground, and reduces the interference of the vibration of the capacitor and the frame on the support base through the elastic buffer part between the frame and the support base. Regardless of whether the support base is fixed to the ground, it can ensure that the support base, as a supporting component, is always less affected or even not affected by the vibration of the capacitor. Specifically, the support base that is not fixed to the ground will not vibrate or jump (the capacitor bracket as a whole) and move. The support base that is fixed to the ground by connecting parts such as anchor bolts will not have its connection parts with the ground due to fatigue fracture or disconnection due to vibration, and will not allow vibration and jump (the capacitor bracket as a whole) to move due to fracture or disconnection. Compared with existing capacitor brackets, the present application can reduce the adverse effects of capacitor mechanical vibration on the stability of the overall installation position of the capacitor bracket, thereby avoiding the incorrect displacement of the entire equipment relative to the static ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A front view of a capacitor bracket according to an embodiment of the present application is shown;

[0012] Figure 2 A front view of a capacitor bracket according to an embodiment of the present application is shown;

[0013] Figure 3 Show Figure 1 A left side view of the capacitor support of the embodiment;

[0014] Figure 4 Show Figure 1 A left side view of the capacitor support of the embodiment;

[0015] Figure 5 A left side view of a capacitor bracket according to an embodiment of the present application is shown;

[0016] Figure 6 Show Figure 5 A right side view of the capacitor support according to an embodiment.

[0017] Support column 100, insulating column 110, annular sleeve 120, anchor bolt 130, elastic rubber pad 200, connecting rod 310, partition plate 320, load-bearing bar 330, first spacing A, second spacing B, limit bar 340, third spacing C, cooling fan 350, fan mesh cover 351, connecting terminal 400, conductive rod 410, insulating tube 420, insulating ring 430, capacitor 500. DETAILED DESCRIPTION

[0018] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0019] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0020] The present application provides a capacitor bracket, comprising a capacitor 500, a frame, a support base, and a connection terminal 400. The frame is provided with a predetermined cavity, and the capacitor 500 is adapted to be installed within the predetermined cavity. The connection terminal 400 is mounted on the side wall of the frame, and the capacitor 500 is adapted to be electrically connected to one end of the connection terminal 400, thereby achieving electrical connection with the electrical equipment through the connection terminal 400. An elastic buffer is provided at one end of the support base, and the frame is connected to the support base via the elastic buffer. That is, the frame is connected to one elastic end of the elastic buffer, and the support base is connected to the other elastic end of the elastic buffer. When the capacitor 500 vibrates during operation, the frame may vibrate due to its direct contact with the capacitor 500. The side of the elastic buffer connected to the frame undergoes elastic deformation, and the mechanical energy generated by the mechanical vibration of the frame serves as a driving source for the elastic deformation of the elastic buffer. The vibration of the frame applies pressure to the elastic buffer, and the connection between the two is used to convert the mechanical kinetic energy of the frame into the elastic potential energy of the elastic buffer. The elastic potential energy is then converted back into mechanical kinetic energy during subsequent continued vibration. As vibrations reciprocate, energy is transferred back and forth between the frame and the elastic buffer. Selecting an elastic buffer with an appropriate elastic limit, ensuring that vibration expansion and contraction remain within its elastic limit, ensures elastic cushioning and achieves shock absorption. The support base is suitable for installation on a fixed, stationary surface, such as the floor or wall (where capacitor 500 is used).

[0021] It should be noted that this application does not specifically limit the installation method of the support base in an installation environment such as on the ground. It can be simply placed on the ground in contact with the ground, using the sufficiently large weight of the capacitor bracket and the weight of the capacitor 500 to ensure the static friction force by gravity, thereby achieving an installation that is not easily displaced. It can also be fixed to the ground using anchor bolts 130, or a running wheel is provided at the end of the support base facing away from the frame, with a locking member provided on the running wheel. The running function of the running wheel is used to facilitate planned movement, and the self-locking function of the running wheel is used to ensure the stability of the installation position and prevent unplanned and erroneous displacement.

[0022] In addition, the present application does not limit the specific structure of the capacitor 500. Preferably, the power capacitor 500 has a built-in shock-absorbing and noise-reducing component as provided in patent document CN110415972A, which can reduce the vibration of the capacitor 500's own shell.

[0023] The present application installs the capacitor 500 by providing a frame, and provides stable support for the frame through a support base on the ground. The elastic buffer portion between the frame and the support base reduces the interference of the capacitor 500 and the frame vibration on the support base. Regardless of whether the support base is fixed to the ground, it can ensure that the support base, as a supporting component, is always less affected or even not affected by the vibration of the capacitor 500. Specifically, the support base that is not fixed to the ground will not vibrate or jump (the capacitor bracket as a whole) and move. The support base that is fixed to the ground by connecting parts such as anchor bolts 130 will not have its connection parts with the ground due to fatigue fracture or disconnection due to vibration, and will not allow vibration and jump (the capacitor bracket as a whole) to move due to fracture or disconnection. Compared with existing capacitor brackets, the present application can reduce the adverse effects of the mechanical vibration of the capacitor 500 on the stability of the overall installation position of the capacitor bracket, thereby avoiding the incorrect displacement of the entire equipment relative to the stationary ground.

[0024] In a possible implementation, an elastic buffer portion is provided at one end of the support seat, and the other end is fixed to the ground via an anchor bolt 130 .

[0025] In a possible implementation, the elastic buffer portion is an elastic rubber pad 200 .

[0026] In one possible implementation, the support seat includes two or more support columns 100, and an elastic buffer portion is provided at one end of the cylindrical axial direction of the support column 100. The two or more support columns 100 are installed on the same side of the frame, and the frame is fixedly connected to the support column 100 through the elastic buffer portion.

[0027] In one possible implementation, the support column 100 is an insulating column 110. Specifically, the insulating column 110 is made of insulating material, such as ceramics with parameters such as hardness that meet standards. An annular sleeve 120 is fixed to the outer surface of the insulating column 110. The annular inner wall of the annular sleeve 120 matches the outer wall of the insulating column 110. The annular outer wall is in the shape of a cone coaxially arranged with the insulating column 110, with a smaller top and a larger bottom. There are more than two annular sleeves 120, and the orientations of the two or more annular sleeves 120 are consistent. The consistent orientation specifically means that, under the premise that all annular sleeves 120 are coaxially arranged with the insulating column 110, among the two adjacent annular sleeves 120, the axially thicker end of the truncated cone of one annular sleeve 120 is close to the axially thinner end of the truncated cone of the other annular sleeve 120.

[0028] In a possible implementation, the frame is provided with two or more connection terminals 400. The connection terminals 400 are high-voltage bushings.

[0029] In one possible implementation, the high-voltage bushing includes a conductive rod 410, an insulating tube 420 and two or more insulating rings 430. Openings are provided at both ends of the tubular shape of the insulating tube 420. One tubular end of the insulating tube 420 is inserted into a preset cavity of the frame. The conductive rod 410 is sleeved in the insulating tube 420. One rod-shaped end of the conductive rod 410 penetrates into the preset cavity through one of the openings and is electrically connected to the capacitor 500 therein. The other rod-shaped end of the conductive rod 410 passes through another opening and out of the insulating sleeve to be electrically connected to the electrical equipment. The two or more insulating rings 430 are sleeved outside the insulating tube 420.

[0030] In one possible implementation, the frame includes a connecting portion and two or more partition plates 320, and the two or more partition plates 320 are all installed on the connecting portion, wherein one plate-shaped end of the partition plate 320 is connected to the connecting portion, the two or more partition plates 320 are arranged in parallel, and the two or more partition plates 320 are adjacently distributed along the thickness direction of the plate-shaped structure. A preset spacing is provided between two adjacent partition plates 320 to form at least one layer (one layer between two adjacent partition plates 320, one layer between two partition plates 320, three layers for three partition plates 320, and N layers for N partition plates 320) of the preset layer gap as a preset cavity for installing the capacitor 500, and the elastic buffer portion of the support seat is connected to the connecting portion or the partition plate 320 of the frame, preferably, the elastic buffer portion of the support seat is connected to one of the partition plates 320 of the frame (one edge along the plate-shaped thickness direction among the many partition plates 320).

[0031] Furthermore, the connecting portion includes more than two connecting rods 310, and the length directions of the two or more connecting rods 310 are consistent. The connecting rods 310 are arranged perpendicular to the plate surface direction of the partition plate 320. The thickness direction of the partition plate 320 is consistent with the length direction of the connecting rods 310. The axial direction of the support column 100 is consistent with the length direction of the connecting rods 310. The two or more partition plates 320 are consistent, and the shapes, sizes, etc. are all consistent. The two or more connecting rods 310 are fixedly connected to the plate-shaped outer edges of the partition plate 320 by bolts or welding. Furthermore, the two or more connecting rods 310 are distributed around the plate-shaped center circumference of the partition plate 320. For example, the partition plate 320 is a rectangular plate, and there are four connecting rods 310. The four connecting rods 310 are respectively fixedly connected to the four top corners of the rectangular plate of the partition plate 320.

[0032] In one possible implementation, the frame is provided with a cooling fan 350. A fan mesh 351 is provided outside the cooling fan 350, and the cooling fan 350 rotates blades inside the fan mesh 351 to drive the gas flow and promote the gas flow. Furthermore, the cooling fan 350 is an axial flow fan, and the axial ends of the axial flow fan are respectively facing the inner and outer sides of the frame. The axial direction of the axial flow fan is consistent with the length direction of the partition plate 320, the length direction of the load-bearing bar 330, the length direction of the limit bar 340, the width direction of the connecting rod 310 and the radial direction of the support column 100. Furthermore, there are four connecting rods 310, the connecting rod 310 is a vertical rod, and the partition plate 320 is a horizontal plate, and N horizontal plates separate N-1 layers of preset layer gaps. On one side of the partition plate 320, in the area divided by the two vertical parallel lines, N horizontal plates separate N-1 rectangular frames. On the other side of the partition plate 320, the area defined by the parallel lines of the other two vertical bars also separates N-1 rectangular frames. Each rectangular frame is equipped with a cooling fan 350. The cooling fans 350 located in the rectangular frames at both ends of the preset interlayer gap on the same level create air convection, accelerating air flow around the capacitors 500, allowing cool air to enter and hot air to exit, thereby promoting heat dissipation from the capacitors 500.

[0033] In one possible implementation, a load-bearing frame is provided between two adjacent partition plates 320, a first distance A is provided between the load-bearing frame and one of the partition plates 320 for heat dissipation, and a second distance B is provided between the load-bearing frame and the other partition plate 320 for installing the capacitor 500, and the load-bearing frame is connected to the partition plate 320 or the connecting part of the frame body, preferably, the load-bearing frame is connected to the connecting part by bolts.

[0034] In one possible implementation, a load-bearing frame and a limit frame are provided between two adjacent partition plates 320. The load-bearing frame and the limit frame are respectively close to the two partition plates 320. A third distance C is provided between the limit frame and the partition plate 320 to which it is close. The capacitor 500 is installed between the limit frame and the load-bearing frame. The opposite ends of the capacitor 500 are respectively abutted against the limit frame and the load-bearing frame to obtain stable support. The limit frame is connected to the partition plate 320 or the connecting part of the frame body. Preferably, the limit frame is connected to the connecting part through bolts.

[0035] In one possible implementation, the load-bearing frame includes a load-bearing bar 330, which is elongated and parallel to the surface of the partition plate 320 (in its longitudinal direction). One end of the load-bearing bar 330 is connected to a connecting portion. Preferably, both ends of the load-bearing bar 330 are connected to the sidewalls of the two connecting rods 310 in the longitudinal direction, preferably fixed together by bolts. Specifically, the load-bearing bar 330 has an L-shaped cross-section along its longitudinal direction, with one side of the L-shaped structure at its longitudinal end abutting the sidewall of the connecting rod 310. The screw end of the bolt passes through the load-bearing bar 330 (one side of the L-shaped structure at its longitudinal end) and the connecting rod 310, and then connects to the nut of the connecting rod. The load-bearing frame includes two load-bearing bars 330 arranged opposite each other. The two load-bearing bars 330 are adjacent to each other in their longitudinal direction and have a fourth spacing along their longitudinal direction that corresponds to the capacitor 500. The L-shaped sides of the two load-bearing bars 330 are located on the same plane. The limiting frame is consistent with the load-bearing frame, that is, the limiting frame includes a limiting bar 340, which is in the shape of an elongated bar. The limiting bar 340 (in the length direction) is parallel to the plate surface direction of the partition plate 320. One end of the length of the limiting bar 340 is connected to the connecting portion, and preferably, both ends of the length of the limiting bar 340 are respectively connected to the side walls of the two connecting rods 310 in the width direction, and are preferably fixed by bolts. Specifically, the cross-section of the limiting bar 340 along its width direction is L-shaped, and one side of the L-shaped structure at the length end thereof fits against the side wall of the connecting rod 310. The screw end of the bolt passes through the limiting bar 340 (one side of the L-shaped structure at the length end) and the connecting rod 310 in sequence and is connected to its nut. The limiting frame includes two opposing limiting bars 340, one positioned opposite the other and the other supporting bars 330. The two limiting bars 340 are positioned adjacent to each other along the width of the frame (a fourth spacing is provided between the two limiting bars 340 along the width of the frame). One side of the L-shaped structure of the two limiting bars 340 lies on the same plane. The two supporting bars 330 and the two limiting bars 340 are arranged in a rectangular shape, with both sides of the L-shaped structure of the two supporting bars 330 and the two limiting bars 340 located on the sides of the same rectangle.

[0036] In one possible implementation, the limiting bar 340 and the load-bearing bar 330 are L-shaped steel bars, each comprising two connected, perpendicular sides. Rubber pads are installed on the inner walls of both sides of the L-shaped bar (the L-shaped structure) to reduce the impact of mechanical vibration from the capacitor 500 on the frame. Specifically, the "inner walls of the L-shaped structure" refer to the sides of the L-shaped structure, located within the opening and within the angle. The rubber pads are adhered to the side walls of the L-shaped bar.

[0037] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A capacitor bracket, characterized in that: include: Frame, support base and connection terminals; The frame is provided with a preset cavity, the capacitor is suitable for being installed in the preset cavity, the side wall of the frame is provided with the connecting terminal, the capacitor is suitable for being electrically connected to one end of the connecting terminal, and is electrically connected to the electrical device through the connecting terminal; An elastic buffer portion is provided at one end of the support base, and the frame is connected to the support base via the elastic buffer portion. The support base is suitable for being installed on the ground.

2. The capacitor bracket according to claim 1, characterized in that: The elastic buffer portion is an elastic rubber pad.

3. The capacitor bracket according to claim 1, characterized in that: The support seat includes two or more support columns, and an elastic buffer portion is provided at one end of the cylindrical axial direction of the support column. The two or more support columns are installed on the same side of the frame, and the frame is fixedly connected to the support columns through the elastic buffer portion.

4. The capacitor bracket according to claim 3, characterized in that: The supporting column is an insulating column.

5. The capacitor bracket according to claim 1, characterized in that: The frame is provided with more than two connection terminals.

6. The capacitor bracket according to claim 1, characterized in that The connecting terminal adopts a high-voltage bushing.

7. The capacitor bracket according to claim 6, characterized in that: The high-voltage bushing includes a conductive rod, an insulating tube and two or more insulating rings. Openings are provided at both ends of the tubular insulating tube. One tubular end of the insulating tube penetrates into the preset cavity of the frame. The conductive rod is sleeved in the insulating tube. One rod-shaped end of the conductive rod penetrates into the preset cavity through one of the openings and is electrically connected to the capacitor therein. The other rod-shaped end of the conductive rod passes through another opening and out of the insulating sleeve to be electrically connected to the electrical equipment. The two or more insulating rings are sleeved outside the insulating tube.

8. The capacitor bracket according to claim 1, wherein: The frame includes a connecting portion and two or more partition plates, and the two or more partition plates are installed on the connecting portion, wherein one plate-shaped end of the partition plate is connected to the connecting portion, and the two or more partition plates are arranged in parallel. The two or more partition plates are adjacently distributed along the thickness direction of the plate-shaped structure, and a preset spacing is provided between two adjacent partition plates to form at least one layer of preset layer gap as a preset cavity for installing the capacitor, and the elastic buffer portion of the support seat is connected to the connecting portion or the partition plate of the frame.

9. The capacitor bracket according to claim 8, characterized in that: A load-bearing frame is provided between two adjacent partition plates. A first distance is provided between the load-bearing frame and one of the partition plates for heat dissipation, and a second distance is provided between the load-bearing frame and the other partition plate for installing capacitors. The load-bearing frame is connected to the partition plate or the connecting part of the frame body.

10. The capacitor support according to claim 9, characterized in that A load-bearing frame and a limiting frame are provided between two adjacent partition plates. The load-bearing frame and the limiting frame are respectively close to the two partition plates. A third distance is provided between the limiting frame and the partition plate it is close to. The capacitor is installed between the limiting frame and the load-bearing frame. The opposite ends of the capacitor are respectively abutted against the limiting frame and the load-bearing frame to obtain stable support. The limiting frame is connected to the partition plate or connecting part of the frame body.

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