Capacitance-reduced high-voltage flexible DC device

Abstract

The invention relates to the technical field of high-voltage flexible direct-current devices, and discloses a capacitance-reduced high-voltage flexible direct-current device, which comprises a direct-current charging device body, a mounting plate and a charging wire connected with the direct-current charging device body, a heat dissipation frame and a connecting plate are arranged on the rear side of the direct current charging device body, and a fan is arranged in the heat dissipation frame; and a mounting mechanism is arranged between the direct current charging device body and the mounting plate. Through the mounting mechanism and the adjusting assembly, a second rotating plate is used for driving a rotating rod to rotate, an inserting rod and an inserting groove are used for limiting the rotated second rotating plate, shaking of the rotating rod after adjustment is avoided, a threaded sleeve is used for driving a clamping block to slide into a clamping groove through the mounting assembly, and then the direct current charging device body is mounted; the direct current charging device body can be mounted and dismounted without other work, and maintenance personnel can maintain the direct current charging device body conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage flexible direct current devices, and in particular to a high-voltage flexible direct current device with reduced capacitance. Background Art

[0002] High-voltage flexible DC device is a new type of high-voltage DC transmission technology, also known as light DC transmission or new DC transmission. The advantage of flexible DC transmission technology is that it can independently control active power and reactive power, can supply power to passive networks and weak power grids, avoid the problem of commutation failure, and does not require reactive compensation.

[0003] According to a high-voltage flexible DC device with reduced capacitance published by a Chinese patent, the publication number is CN115768070A, which includes a carrier and a DC charging device body installed on the top of the carrier, a charging cable is installed on the DC charging device body, an insulating cover is provided on the outer periphery of the DC charging device body, and the insulating cover is detachably installed on the top of the carrier, a heat dissipation mechanism is provided inside the insulating cover, the charging cable passes through the outer wall of the insulating cover and extends to the outside of the insulating cover, a first spring is fixedly connected to the outer wall of the insulating cover, a collar is fixedly connected to the other end of the first spring, and the collar is sleeved on the periphery of the charging cable, and an annular inner cavity connected to the middle cavity of the collar is provided on the inner wall of the collar. The present invention not only has a good heat dissipation effect, reduces the impact of capacitance reduction, and increases the service life of the DC charging device, but also makes the charging cable more neat and beautiful, effectively preventing the charging cable from being separated from the charging device; In the device, the electric-insulating cover is fixedly mounted on the top of the carrier plate by means of a fixed lip plate and a fastening bolt, but the existing device still has the following problems: the fastening bolts need to use other tools in the process of fixing and removing the fixed lip plate, and the removal efficiency of the electric-insulating cover is reduced. Therefore, a high-voltage flexible DC device with reduced capacitance is proposed. Summary of the invention

[0004] The object of the present invention is to provide a high-voltage flexible DC device with reduced capacitance to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a high-voltage flexible DC device with reduced capacitance, comprising a DC charging device body, a mounting plate and a charging line connected to the DC charging device body, a shock-absorbing pad fixedly connected to the bottom surface of the mounting plate, a heat dissipation frame and a connecting plate arranged at the rear side of the DC charging device body, and a fan arranged inside the heat dissipation frame; A mounting mechanism is provided between the DC charging device body and the mounting plate; A tidying mechanism is provided on the front side of the charging cable, and the tidying mechanism is located on the surface of the mounting plate; The mounting mechanism comprises an adjustment component and a mounting component; The adjustment assembly is located on the surface of the mounting assembly.

[0006] Preferably, the mounting assembly includes a fixed lip plate, the top surface of the fixed lip plate is fixedly connected to the bottom surface of the DC charging device body, the bottom surface of the DC charging device body is fixedly connected to two connecting blocks, the two connecting blocks are symmetrically arranged, the top surface of the mounting plate is provided with two mounting grooves adapted to the connecting blocks, a cavity is provided inside the mounting plate, a fixed plate, a second double-headed threaded rod, a rotating rod and two clamping blocks are provided inside the cavity, the two clamping blocks are symmetrically arranged, the left end surface of the second double-headed threaded rod passes through the right side surface of the fixed plate and extends to the left side of the fixed plate, the side surface of the fixed plate is fixedly connected to the inner wall of the cavity, and the second double-headed threaded rod is provided with a rotating rod and two clamping blocks. The surfaces of both ends of the two double-headed threaded rods are threadedly sleeved with threaded sleeves, the left end surface of the threaded sleeve is fixedly connected to the right end surface of the clamping block, the bottom surface of the threaded sleeve is fixedly connected to the limit rod, the bottom surface of the limit rod is slidably connected to the bottom surface of the cavity, the surface of the second double-headed threaded rod and the surface of the rotating rod are fixedly sleeved with bevel gears, the two bevel gears are meshed with inclined surfaces, and the right side surface of the connecting block is through-opened with a clamping groove adapted to the clamping block, the left end surface of the clamping block slides through the inner wall of the cavity and the right side surface of the connecting block to extend into the inside of the clamping groove, and the connecting block is installed in the mounting groove through the clamping block, so that the DC charging device body is installed on the mounting plate.

[0007] Preferably, the surface of the second double-headed threaded rod is rotatably connected to the inner wall of the fixed plate through a bearing seat, the front end face of the rotating rod passes through the inner side of the cavity and extends to the front side of the mounting plate, and the surface of the rotating rod is rotatably connected to the inner wall of the mounting plate through the bearing seat.

[0008] Preferably, the adjustment component includes a second rotating plate, the rear side surface of the second rotating plate is fixedly connected to the front end surface of the rotating rod, an insertion rod is arranged on the front side of the second rotating plate, a through hole adapted to the insertion rod is formed on the front side of the second rotating plate, a slot adapted to the insertion rod is formed on the front side of the mounting plate, the rear end surface of the insertion rod slides through the front side of the second rotating plate, the through hole and the front side of the mounting plate and extends into the slot, the insertion rod can be used to prevent the second rotating plate from deflecting, thereby improving the stability of the rotating rod after adjustment.

[0009] Preferably, four shock-absorbing pads are provided, and the shock-absorbing pads are made of rubber material. The shock-absorbing pads can reduce the vibration generated when the DC charging device body is working.

[0010] Preferably, the rear side surface of the heat dissipation frame is configured to be a filter hole shape, the rear side surface of the fan is fixedly installed inside the heat dissipation frame, two connecting plates are provided, the two connecting plate sides are fixedly connected to the surface of the heat dissipation frame, the inner wall of the connecting plate is threadedly connected to the inner wall of the DC charging device body by bolts, and the heat dissipation frame is connected to the surface of the DC charging device body by using the connecting plate.

[0011] Preferably, the organizing mechanism includes a first double-headed threaded rod, a slide groove is formed through the top surface of the mounting plate, two slide blocks are arranged inside the slide groove, the two slide blocks are symmetrically arranged, the rear end surface of the first double-headed threaded rod passes through the front side of the mounting plate, the slide groove and the front sides of the two slide blocks and extends to the rear sides of the two slide blocks, the surface of the first double-headed threaded rod is rotatably connected to the inner wall of the mounting plate through a bearing seat, the surface of the first double-headed threaded rod is threadedly connected to the inner walls of the two slide blocks, the bottom surface of the slide block is slidably connected to the bottom surface of the slide groove, the top surfaces of the two slide blocks are fixedly connected to a support plate, the right side surface of the support plate is fixedly connected to a connecting column, the right end surface of the connecting column is fixedly connected to a baffle, and the front end surface of the first double-headed threaded rod is fixedly connected to the first rotating plate, and the baffle can be used to prevent the charging cable from slipping off the connecting column.

[0012] Preferably, a plurality of connecting posts are provided, and the connecting posts on the front and rear sides are staggered up and down, and a sponge pad is fixed on the surface of the connecting post to prevent damage caused by friction between the charging cable and the connecting post.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The high-voltage flexible DC device with reduced capacitance has an installation mechanism, and the adjustment component drives the rotating rod to rotate by using the second rotating plate, and the plug rod and the slot limit the second rotating plate after rotation to prevent the rotating rod from shaking after adjustment. The installation component drives the card block to slide into the card slot by using the threaded sleeve, thereby realizing the installation of the DC charging device body. The DC charging device body can be installed and disassembled without other work, which is convenient for maintenance personnel to maintain the DC charging device body; 2. The high-voltage flexible DC device with reduced capacitance reduces the vibration generated when the DC charging device body is working through the shock-absorbing pad, thereby improving the stability of the high-voltage flexible DC device with reduced capacitance; 3. The high-voltage flexible DC device with reduced capacitance uses a tidying mechanism to surround the charging line with a connecting column, and the support plate drives the front and rear connecting columns to move closer or farther away from each other, so as to arrange and store the charging line and avoid the phenomenon that the charging line is too long and entangled or scattered; 4. The high-voltage flexible DC device with reduced capacitance can dissipate heat for the DC charging device body through the heat dissipation frame and the fan, thereby avoiding overheating inside the DC charging device body, effectively reducing the impact of capacitance reduction, and increasing the service life of the high-voltage flexible DC device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cutaway stereoscopic view of the threaded sleeve of the present invention; Figure 2 It is the overall main stereoscopic diagram of the present invention; Figure 3 It is the overall rear perspective view of the present invention; Figure 4 It is a front exploded stereogram of the present invention; Figure 5 It is a right perspective view of the first double-start threaded rod of the present invention; Figure 6 It is a top side sectional stereoscopic view of the connecting column of the present invention; Figure 7 It is a top and side sectional stereoscopic view of the heat dissipation frame of the present invention; Figure 8 It is a left side sectional stereoscopic view of the rotating rod of the present invention.

[0015] In the figure: DC charging device body 1, charging line 2, mounting plate 3, shock absorbing pad 4, sorting mechanism 5, first double-headed threaded rod 501, slider 502, support plate 503, connecting column 504, sponge pad 505, baffle 506, first rotating plate 507, mounting mechanism 6, fixed lip plate 601, connecting block 602, rotating rod 603, second double-headed threaded rod 604, bevel gear 605, threaded sleeve 606, limit rod 607, clamping block 608, fixed plate 609, second rotating plate 610, plug rod 611, heat dissipation frame 7, fan 8, connecting plate 9. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1 See also Figure 1 - Figure 8 The present invention provides a technical solution: a high-voltage flexible DC device with reduced capacitance, comprising a DC charging device body 1, a mounting plate 3 and a charging line 2 connected to the DC charging device body 1, a shock-absorbing pad 4 is fixedly connected to the bottom surface of the mounting plate 3, a heat dissipation frame 7 and a connecting plate 9 are arranged at the rear side of the DC charging device body 1, and a fan 8 is arranged inside the heat dissipation frame 7; A mounting mechanism 6 is provided between the DC charging device body 1 and the mounting plate 3; A tidying mechanism 5 is provided on the front side of the charging cable 2, and the tidying mechanism 5 is located on the surface of the mounting plate 3; The mounting mechanism 6 includes an adjustment component and a mounting component; The adjustment assembly is located on the surface of the mounting assembly.

[0018] The mounting assembly includes a fixed lip plate 601, the top surface of the fixed lip plate 601 is fixedly connected to the bottom surface of the DC charging device body 1, the bottom surface of the DC charging device body 1 is fixedly connected to two connecting blocks 602, the two connecting blocks 602 are symmetrically arranged, the top surface of the mounting plate 3 is provided with two mounting grooves adapted to the connecting blocks 602, a cavity is provided inside the mounting plate 3, a fixed plate 609, a second double-headed threaded rod 604, a rotating rod 603 and two clamping blocks 608 are provided inside the cavity, the two clamping blocks 608 are symmetrically arranged, the left end surface of the second double-headed threaded rod 604 passes through the right side surface of the fixed plate 609 and extends to the left side of the fixed plate 609, the side surface of the fixed plate 609 is fixedly connected to the inner wall of the cavity, the surfaces of both ends of the second double-headed threaded rod 604 are threadedly provided with threaded sleeves 606, and the screw sleeves are provided on the two end surfaces of the second double-headed threaded rod 604. The left end face of the threaded sleeve 606 is fixedly connected to the right end face of the clamping block 608, the bottom face of the threaded sleeve 606 is fixedly connected to the limiting rod 607, the bottom face of the limiting rod 607 is slidably connected to the bottom face inside the cavity, the surface of the second double-headed threaded rod 604 and the surface of the rotating rod 603 are fixedly sleeved with a bevel gear 605, the two bevel gears 605 are bevelly meshed, and the right side of the connecting block 602 is through-opened with a clamping groove adapted to the clamping block 608, the left end face of the clamping block 608 slides through the inner wall of the cavity and the right side face of the connecting block 602 and extends to the inside of the clamping groove, the surface of the second double-headed threaded rod 604 is rotatably connected to the inner wall of the fixed plate 609 through the bearing seat, the front end face of the rotating rod 603 passes through the inner side face of the cavity and extends to the front side of the mounting plate 3, and the surface of the rotating rod 603 is rotatably connected to the inner wall of the mounting plate 3 through the bearing seat.

[0019] The adjusting component includes a second rotating plate 610, the rear side surface of the second rotating plate 610 is fixedly connected to the front end surface of the rotating rod 603, the front side of the second rotating plate 610 is provided with an insertion rod 611, the front side surface of the second rotating plate 610 is penetrated with a through hole adapted to the insertion rod 611, the front side of the mounting plate 3 is penetrated with a slot adapted to the insertion rod 611, the rear end surface of the insertion rod 611 slides through the front side of the second rotating plate 610, the through hole and the front side of the mounting plate 3 to extend to the inside of the slot, through the mounting mechanism 6, the adjusting component uses the second rotating plate 610 to drive the rotating rod 603 to rotate, the insertion rod 611 and the slot limit the rotated second rotating plate 610 to prevent the rotating rod 603 from shaking after adjustment, the mounting component uses the threaded sleeve 606 to drive the clamping block 608 to slide into the inside of the clamping slot, thereby realizing the installation of the DC charging device body 1, the DC charging device body 1 can be installed and disassembled without other work, which is convenient for maintenance personnel to maintain the DC charging device body 1.

[0020] Four shock-absorbing pads 4 are provided, and the shock-absorbing pads 4 are made of rubber material. The shock-absorbing pads 4 can reduce the vibration generated when the DC charging device body 1 is working, thereby improving the stability of the high-voltage flexible DC device with reduced capacitance.

[0021] The rear side surface of the heat dissipation frame 7 is arranged to be in the shape of a filter hole, the rear side surface of the fan 8 is fixedly installed inside the heat dissipation frame 7, two connecting plates 9 are arranged, and the sides of the two connecting plates 9 are fixedly connected to the surface of the heat dissipation frame 7, and the inner wall of the connecting plate 9 is threadedly connected to the inner wall of the DC charging device body 1 through bolts. Through the heat dissipation frame 7 and the fan 8, the DC charging device body 1 can be cooled to avoid overheating inside the DC charging device body 1, effectively reducing the influence of capacitance reduction and improving the service life of the high-voltage flexible DC device.

[0022] When installing the DC charging device body 1, move the fixed lip plate 601 downward so that the connecting block 602 slides into the installation groove, rotate the second rotating plate 610, the second rotating plate 610 drives the rotating rod 603 to rotate, the rotating rod 603 drives the bevel gear 605 to rotate, and the second double-headed threaded rod 604 rotates through the meshing transmission of the two bevel gears 605, and the second double-headed threaded rod 604 drives the two threaded sleeves 606 to move away from each other, thereby driving the clamping block 608 to slide into the inside of the clamping groove, and inserting the insertion rod 611 into the relative slot, thereby realizing the installation of the DC charging device body 1 on the mounting plate 3; similarly, when the DC charging device body 1 needs to be disassembled, it is only necessary to rotate the second rotating plate 610 in the opposite direction so that the two threaded sleeves 606 are close to each other, thereby making the clamping block 608 slide out of the clamping groove, thereby taking the connecting block 602 out of the installation groove, and disassembling the DC charging device body 1.

[0023] Embodiment 2 On the basis of the first embodiment, a preferred embodiment of a high-voltage flexible DC device with reduced capacitance provided by the present invention is as follows: Figure 2 , Figure 5 and Figure 6 As shown: the sorting mechanism 5 includes a first double-headed threaded rod 501, a slide groove is opened through the top surface of the mounting plate 3, two sliders 502 are arranged inside the slide groove, and the two sliders 502 are symmetrically arranged. The rear end surface of the first double-headed threaded rod 501 passes through the front surface of the mounting plate 3, the slide groove and the front surface of the two sliders 502 and extends to the rear side of the two sliders 502. The surface of the first double-headed threaded rod 501 is rotatably connected to the inner wall of the mounting plate 3 through a bearing seat. The surface of the first double-headed threaded rod 501 is threadedly connected to the inner walls of the two sliders 502, and the bottom surface of the slider 502 is connected to the bottom of the inner part of the slide groove. The two sliders 502 are connected by sliding surface, the top surfaces of the two sliders are fixedly connected with a support plate 503, the right side surface of the support plate 503 is fixedly connected with a connecting column 504, the right end surface of the connecting column 504 is fixedly connected with a baffle 506, and the front end surface of the first double-headed threaded rod 501 is fixedly connected with a first rotating plate 507. Through the sorting mechanism 5, the connecting column 504 is used to surround the charging line 2, and the support plate 503 drives the front and rear connecting columns 504 to move closer to or away from each other, so as to realize the sorting and storage of the charging line 2 and avoid the phenomenon that the charging line 2 is too long and entangled or scattered.

[0024] There are multiple connecting posts 504 , and the front and rear connecting posts 504 are staggered up and down. A sponge pad 505 is fixed on the surface of the connecting post 504 to prevent the surface of the charging cable 2 from being damaged when the charging cable 2 contacts the connecting post 504 .

[0025] When the charging cable 2 is long, the charging cable 2 is interlaced and wrapped around the surfaces of the connecting columns 504 on the front and rear sides so that the charging cable 2 can be sorted and stored. The first rotating plate 507 is rotated, and the first rotating plate 507 drives the first double-headed threaded rod 501 to rotate, so that the two sliders 502 are close to or away from each other, thereby adjusting the length of the stored charging cable 2 and avoiding the charging cable 2 from becoming cluttered.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage flexible DC device with reduced capacitance, comprising a DC charging device body (1), a mounting plate (3) and a charging line (2) connected to the DC charging device body (1), characterized in that: The bottom surface of the mounting plate (3) is fixedly connected to a shock-absorbing pad (4); a heat dissipation frame (7) and a connection plate (9) are provided on the rear side of the DC charging device body (1); a fan (8) is provided inside the heat dissipation frame (7); A mounting mechanism (6) is provided between the DC charging device body (1) and the mounting plate (3); A tidying mechanism (5) is provided on the front side of the charging cable (2), and the tidying mechanism (5) is located on the surface of the mounting plate (3); The mounting mechanism (6) comprises an adjustment component and a mounting component; The adjustment assembly is located on the surface of the mounting assembly.

2. The high-voltage flexible DC device with reduced capacitance according to claim 1, characterized in that: The mounting assembly comprises a fixed lip plate (601), the top surface of the fixed lip plate (601) being fixedly connected to the bottom surface of the DC charging device body (1), the bottom surface of the DC charging device body (1) being fixedly connected to two connection blocks (602), the two connection blocks (602) being symmetrically arranged, the top surface of the mounting plate (3) being provided with two mounting grooves adapted to the connection blocks (602), the interior of the mounting plate (3) being provided with a cavity, the interior of the cavity being provided with a fixed plate (609), a second double-headed threaded rod (604), a rotating rod (603) and two clamping blocks (608), the two clamping blocks (608) being symmetrically arranged, the left end surface of the second double-headed threaded rod (604) passing through the right side surface of the fixed plate (609) and extending to the left side of the fixed plate (609), the fixed plate ( The second double-headed threaded rod (604) is fixedly connected to the inner wall of the cavity by a side surface thereof; threaded sleeves (606) are threadedly sleeved on both end surfaces of the second double-headed threaded rod (604); the left end surface of the threaded sleeve (606) is fixedly connected to the right end surface of the clamping block (608); the bottom surface of the threaded sleeve (606) is fixedly connected to a limiting rod (607); the bottom surface of the limiting rod (607) is slidably connected to the bottom surface of the cavity; the surface of the second double-headed threaded rod (604) and the surface of the rotating rod (603) are fixedly sleeved with a bevel gear (605); the two bevel gears (605) are meshed with each other at an angle; a clamping groove matching the clamping block (608) is formed on the right side surface of the connecting block (602); the left end surface of the clamping block (608) slides through the inner wall of the cavity and the right side surface of the connecting block (602) and extends to the inside of the clamping groove.

3. The high-voltage flexible DC device with reduced capacitance according to claim 2, characterized in that: The surface of the second double-ended threaded rod (604) is rotatably connected to the inner wall of the fixing plate (609) via a bearing seat, the front end surface of the rotating rod (603) passes through the inner side of the cavity and extends to the front side of the mounting plate (3), and the surface of the rotating rod (603) is rotatably connected to the inner wall of the mounting plate (3) via the bearing seat.

4. The high-voltage flexible DC device with reduced capacitance according to claim 2, characterized in that: The adjustment component comprises a second rotating plate (610), the rear side surface of the second rotating plate (610) is fixedly connected to the front end surface of the rotating rod (603), the front side of the second rotating plate (610) is provided with an insertion rod (611), the front side surface of the second rotating plate (610) is provided with a through hole adapted to the insertion rod (611), the front side surface of the mounting plate (3) is provided with a slot adapted to the insertion rod (611), and the rear end surface of the insertion rod (611) slides through the front side of the second rotating plate (610), the through hole and the front side of the mounting plate (3) and extends to the interior of the slot.

5. The high-voltage flexible DC device with reduced capacitance according to claim 1, characterized in that: Four shock-absorbing pads (4) are provided, and the shock-absorbing pads (4) are made of rubber material.

6. The high-voltage flexible DC device with reduced capacitance according to claim 1, characterized in that: The rear side surface of the heat dissipation frame (7) is arranged in the shape of a filter hole, the rear side surface of the fan (8) is fixedly mounted inside the heat dissipation frame (7), two connecting plates (9) are provided, the side surfaces of the two connecting plates (9) are fixedly connected to the surface of the heat dissipation frame (7), and the inner wall of the connecting plate (9) is threadedly connected to the inner wall of the DC charging device body (1) via bolts.

7. The high-voltage flexible DC device with reduced capacitance according to claim 1, characterized in that: The arranging mechanism (5) comprises a first double-ended threaded rod (501), a slide groove is provided on the top surface of the mounting plate (3), two sliders (502) are arranged inside the slide groove, and the two sliders (502) are symmetrically arranged. The rear end surface of the first double-ended threaded rod (501) passes through the front surface of the mounting plate (3), the slide groove and the front surfaces of the two sliders (502) and extends to the rear sides of the two sliders (502). The surface of the first double-ended threaded rod (501) is rotatably connected to the inner wall of the mounting plate (3) via a bearing seat. The surface of the first double-headed threaded rod (501) is threadedly connected to the inner walls of the two sliders (502); the bottom surface of the slider (502) is slidably connected to the bottom surface of the inner part of the slide groove; the top surfaces of the two sliders (502) are fixedly connected to a support plate (503); the right side surface of the support plate (503) is fixedly connected to a connecting column (504); the right end surface of the connecting column (504) is fixedly connected to a baffle (506); and the front end surface of the first double-headed threaded rod (501) is fixedly connected to a first rotating plate (507).

8. The high-voltage flexible DC device with reduced capacitance according to claim 7, characterized in that: A plurality of the connecting columns (504) are provided, and the connecting columns (504) on the front and rear sides are arranged in an up-and-down staggered manner. A sponge pad (505) is fixedly sleeved on the surface of the connecting column (504).

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