Ultrahigh-voltage large-capacitance switch cabinet

Abstract

The invention relates to the technical field of switch cabinets, and discloses an ultrahigh-voltage large-capacitance switch cabinet which comprises a switchboard, a plurality of single boxes are detachably connected to the switchboard, a plurality of metal blocks are fixedly installed in each single box, a plurality of terminals are fixedly connected to one side of each metal block, a pair of resistor discs is slidably connected to each terminal, and the resistor discs are fixedly connected to the switchboard. The side walls of the resistor discs abut against the single boxes in a contact mode, a plurality of conductive blocks are fixedly installed beside the side walls, close to the terminals, of the resistor discs, an abutting block is fixedly connected to one side of each conductive block, cooling fans are fixedly installed at the two ends of the other side of each single box, a connector is fixedly installed in the middle of the other side of each single box, and a cooling assembly is fixedly installed at the top of the switchboard. According to the ultra-high-voltage large-capacitance switch cabinet, the resistor disc disperses and reduces the current which passes through the switch cabinet in time, and after the current is reduced, the generated heat is conducted to the resistor disc, so that the service life of the terminal is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinets, and in particular to an ultra-high voltage and large-capacitance switch cabinet. Background Art

[0002] A switchgear is a type of electrical equipment. External wiring in the switchgear first enters the main control switch inside the switchgear, then flows into the sub-control switches. Each branch is configured as needed, such as for instruments, automatic controls, motor magnetic switches, and various AC contactors. Some switchgear also has high-voltage and low-voltage compartments, and is equipped with a high-voltage busbar, such as in power plants. Some also have low-frequency load shedding to protect key equipment.

[0003] Existing switchgear terminals need to contact the connecting wires. When the wires are exposed to ultra-high voltage, the terminals cannot withstand the ultra-high voltage, resulting in current leakage, current noise, and arcing and sparking during each connection. The terminals generate a lot of heat, which affects the life of the equipment over time. Existing terminal materials cannot withstand the load current for a long time and are therefore limited to low voltage. Once high voltage is encountered, the current in the path increases, and the terminals are prone to high temperatures, which in turn creates a safety hazard. Currently, there are no terminals on the market that can withstand high voltage for a long time. To this end, we propose an ultra-high voltage, high-capacitance switchgear. Summary of the Invention

[0004] The object of the present invention is to provide an ultra-high voltage and large-capacitance switch cabinet to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultra-high voltage and large-capacitance switch cabinet, comprising a switchboard, on which a plurality of single boxes are detachably connected, a plurality of metal blocks are fixedly installed inside each single box, a plurality of terminals are fixedly connected to one side of the metal block, a pair of resistors are slidably connected to each terminal, the side walls of the resistors are in contact with and abut against the single box, a plurality of conductive blocks are fixedly installed near the side walls of the terminals on the resistors, abutment blocks are fixedly connected to one side of each conductive block, cooling fans are fixedly installed at both ends of the other side of the single box, a connector is fixedly installed in the middle of the other side of the single box, a heat dissipation assembly is fixedly installed on the top of the switchboard, and a signal connector is fixedly installed in the middle of one side of the single box.

[0006] Preferably, each block is fixedly connected to a metal sheet on one side, a connecting rod is fixedly connected to one end of the metal sheet, one end of the connecting rod extends out of the resistor sheet, and one end of the connecting rod is fixedly connected to a display light, a guide plate is fixedly connected to the middle of each metal sheet, a first connecting plate and a second connecting plate are fixedly connected between the two guide plates, the other end of the connecting rod is rotatably connected to a magnetic head, a pad is fixedly connected to one side of the magnetic head, a fourth spring is fixedly connected to one side of the magnetic head, a washer is fixedly connected to one end of the fourth spring, and the washer and the connecting rod are slidably connected.

[0007] Preferably, both ends of the first connecting piece and the second connecting piece are fixedly connected to an extension piece, one end of each extension piece is fixedly connected to an electromagnet, and the electromagnet is electrically connected to the conductive block through the extension piece and the guide piece.

[0008] Preferably, both sides of the single box are rotatably connected to the first belt, one end of the first belt is transmission-connected to the second belt, one end of the second belt is connected to the motor output shaft, and the other end of the first belt is connected to the first gear. The two first gears are respectively located on the upper and lower sides of the switchboard, and the upper and lower sides of the switchboard are rotatably connected to the second gear, and the first gear and the second gear are meshed for transmission.

[0009] Preferably, a second sealing block is fixedly connected to one side of the second gear, a suspension is fixedly installed on one side of each second connecting plate, the bottom of the suspension is against the resistor plate, a fifth spring is fixedly connected to the middle of the suspension, one end of the fifth spring is fixedly connected to the connecting block, and a first sealing block is fixedly connected to one side of the first gear, and the first sealing block is rotationally connected to the single box.

[0010] Preferably, guide rails are fixedly installed on the upper and lower ends of each metal block, a slider is slidably connected to each guide rail, a pair of second springs are fixedly connected between the slider and the metal block, and a driving assembly for driving the slider to slide along the guide rail is connected between each metal block and the resistor sheet.

[0011] Preferably, an integrator is fixedly installed on both sides of the slider, a first spring is fixedly connected to the integrator, a card block is slidably connected to the bottom of the integrator, a push rod is connected to the top of the card block, the push rod is fixedly connected to the first spring, and the bottom of the card block is slidably connected to the terminal.

[0012] Preferably, the driving assembly includes a first wedge block fixedly mounted on the resistor sheet, positioning seats fixedly mounted on both ends of the upper and lower sides of the metal block, a hinge shaft is slidably connected between the two positioning seats, a third spring is fixedly connected between the hinge shaft and the guide rail, one end of the hinge shaft is rotatably connected to a card plate, one side of the card plate is against the slider, and the middle part of the card plate forms a lever structure with the corner of the slider as a fulcrum, a second wedge block is fixedly mounted on the top of one end of the card plate, and the first wedge block and the second wedge block are against each other.

[0013] Preferably, the resistor sheet and the guide rail are both made of rubber.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The resistor of the present invention is in contact with the side wall of the terminal. The resistor disperses and reduces the current passing through it. After the current is reduced, the heat generated will be conducted to the resistor, thereby reducing the temperature at the terminal and effectively preventing the generation of electric sparks. Since the current is reduced, the voltage will also be reduced accordingly, so that after the terminal is connected to the wire, no current sound will be generated inside the single box, thereby improving the service life of the terminal; 2. When one end of the first belt of the present invention rotates, the first gear rotates, and the rotation of the first gear separates the side of the first sealing block from the resistor. At the same time, the rotation of the first gear drives the second gear to rotate, so that the second sealing block releases the restriction on the fifth spring. After the fifth spring is released, the device returns to normal state, and the connecting block is removed from the frame to drive the resistor and the single box to separate. This allows the entire resistor to be replaced without manual operation, improves the operating efficiency of the single box, and simplifies the process of removing the resistor. 3. When the resistor of the present invention moves, the middle part of the card plate tends to tilt upward with the other end of the slider corner as the fulcrum, so the other end of the card plate separates from the slider, and the second spring releases the elastic force to the slider, pushing the slider along the guide rail. When the slider separates from the terminal, the first spring for controlling the ejector pin is reset, causing the card block to descend and contact the wire. The kinetic energy released by the second spring can pull the wire away from the interface of the terminal when the card block is attached, thereby preventing the terminal from continuously supplying power to the equipment for a long time without voltage stabilization, thereby creating a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the single-box structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 3 Schematic diagram of the guide rail structure of the present invention; Figure 4 This is a schematic diagram of the resistor and guide rail structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of a single box of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a schematic structural diagram of the resistance piece and the release resistance piece movement of the present invention; Figure 8 This is a schematic diagram of the structure of the resistor of the present invention and its use in powering a display light; Figure 9 It is a schematic diagram of the switchboard structure of the present invention.

[0016] In the figure: 1 - switchboard; 2 - single box; 201 - cooling fan; 202 - connector; 203 - metal block; 3 - heat dissipation assembly; 4 - signal connector; 5 - resistor; 501 - conductive block; 502 - stop block; 6 - terminal; 7 - first sealing block; 8 - display light; 9 - guide rail; 10 - first spring; 11 - integrator; 12 - clamping block; 13 - second spring; 14 - clamping plate; 15 - slider; 16 - first wedge; 17 - second wedge Block; 18-positioning seat; 19-hinge shaft; 20-third spring; 21-metal sheet; 22-connecting rod; 23-magnetic head; 24-fourth spring; 25-first connecting piece; 2501-second connecting piece; 26-pad; 27-extension piece; 28-electromagnet; 29-washer; 30-first gear; 31-second gear; 32-suspension; 33-fifth spring; 34-second sealing block; 35-first belt; 36-second belt. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-9 The present invention provides a technical solution: an ultra-high voltage and large-capacitance switch cabinet, including a switchboard 1, a plurality of single boxes 2 are detachably connected to the switchboard 1, a plurality of metal blocks 203 are fixedly installed inside each single box 2, a plurality of terminals 6 are fixedly connected to one side of the metal block 203, a pair of resistors 5 are slidably connected to each terminal 6, the side walls of the resistors 5 are in contact with the single box 2, and the resistors 5 are fixedly installed with a plurality of conductive blocks 501 near the side walls of the terminals 6, and abutment with each other on one side of each conductive block 501, abutment 502 is fixedly connected, cooling fans 201 are fixedly installed at both ends of the other side of the single box 2, a connector 202 is fixedly installed in the middle of the other side of the single box 2, a heat dissipation assembly 3 is fixedly installed on the top of the switchboard 1, and a signal connector 4 is fixedly installed in the middle of one side of the single box 2. First, the device is arranged according to the attached Figure 9In the installation method, each single box 2 is slid onto the switchboard 1, and then the switchboard 1 is turned on, the heat dissipation assembly 3 is opened, and then the wiring operation can be performed at each terminal 6 interface. After the terminal 6 is connected to the wire, since the resistor 5 is in contact with the side wall of the terminal 6, the resistor 5 will disperse and reduce the current passing through in time. After the current is reduced, the heat generated will be conducted to the resistor 5, so the heating temperature at the terminal 6 can be reduced, and the generation of electric sparks can be effectively prevented. Since the current is reduced, the voltage will also become smaller accordingly, so that after the terminal 6 is connected to the wire, no current sound will be generated inside the single box 2, thereby improving the service life of the terminal 6.

[0019] Furthermore, each stop block 502 is fixedly connected to a metal sheet 21 on one side, and a connecting rod 22 is fixedly connected to one end of the metal sheet 21. The connecting rod 22 is made of insulating material to prevent leakage. One end of the connecting rod 22 extends outside the resistor 5, and one end thereof is fixedly connected to a display light 8. A guide piece is fixedly connected to the middle of each metal sheet 21, and a first connecting piece 25 and a second connecting piece 2501 are fixedly connected between the two guide pieces. The other end of the connecting rod 22 is rotatably connected to a magnetic head 23, and a pad 26 is fixedly connected to one side of the magnetic head 23. One side is fixedly connected to a fourth spring 24, one end of the fourth spring 24 is fixedly connected to a washer 29, and the washer 29 is slidably connected to the connecting rod 22; both ends of the first connecting piece 25 and the second connecting piece 2501 are fixedly connected to an extension piece 27, and one end of each extension piece 27 is fixedly connected to an electromagnet 28, and the electromagnet 28 is electrically connected to the conductive block 501 through the extension piece 27 and the guide piece; since the single box 2 needs to be in use for a long time inside the machine room, the resistor 5 will also generate heat after dispersing the current, and the long After a period of use, it is easy to absorb dust and also easy to age. Once the resistor 5 ages, the contact distance between the resistor 5 and the terminal 6 becomes larger, and a crack will appear on a certain edge of the resistor 5. Therefore, the conductive block 501 at the corresponding position will contact the terminal 6, causing leakage. When the conductive block 501 contacts the current, it conducts the current to the metal sheet 21. After the current passes through the metal sheet 21, the current is conducted to the connecting piece 25 through the guide piece. The current is then conducted to the extension piece 27 through the connecting piece 25, so that the electromagnet 28 at one end of the extension piece 27 is energized. After the electromagnet 28 generates magnetism, it attracts the end of the magnetic head 23. When the magnetic head 23 rotates, the pad 26 and the washer 29 are separated, and the fourth spring 24 is reset, so that the contact rod at the bottom of the washer 29 passes through the metal sheet 21 and contacts the end of the indicator light 8. The indicator light 8 is lit, so that the area of ​​the resistor 5 at that location on the entire resistor 5 shows signs of aging, which proves that the performance of the resistor 5 has been reduced. When installing the device, each first connecting piece 25 and the second connecting piece 2501 need to be electrically connected to the single box 2 through a wire. A sensor is installed inside the single box 2 and a certain threshold is set for it. When the current increases, a signal is sent to the switchboard 1, and the switchboard 1 issues an instruction to the program for execution.

[0020] Furthermore, both sides of the single box 2 are rotatably connected to the first belt 35, one end of the first belt 35 is transmission-connected to the second belt 36, one end of the second belt 36 is connected to the motor output shaft, and the other end of the first belt 35 is connected to the first gear 30. The two first gears 30 are respectively located on the upper and lower sides of the switchboard 1, and the upper and lower sides of the switchboard 1 are rotatably connected to the second gear 31, and the first gear 30 and the second gear 31 are meshed for transmission; one side of the second gear 31 is fixedly connected to the second sealing block 34, and one side of each second connecting piece 2501 is fixedly installed with a suspension 32, the bottom of the suspension 32 is against the resistor 5, and the middle part of the suspension 32 is fixedly connected to the fifth spring 33, one end of the fifth spring 33 is fixedly connected to the connecting block, and one side of the first gear 30 is fixedly connected to the second sealing block 34. A sealing block 7, the first sealing block 7 and the single box 2 are rotationally connected. When the program is executed, the driving motor rotates, and the rotation of the motor causes the first belt 35 and the second belt 36 to rotate synchronously. When one end of the first belt 35 rotates, the first gear 30 rotates, and the rotation of the first gear 30 separates the side of the first sealing block 7 from the resistor 5. At the same time, the rotation of the first gear 30 can drive the second gear 31 to rotate, so that the second sealing block 34 releases the restriction on the fifth spring 33. After the fifth spring 33 is released, it returns to normal. The connecting block is removed from the shelf to drive the resistor 5 and the single box 2 to separate, so that the entire resistor 5 can be replaced without manual operation, thereby improving the operating efficiency of the single box 2 and making the disassembly process of the resistor 5 relatively simple.

[0021] Furthermore, guide rails 9 are fixedly installed on the upper and lower ends of each metal block 203, and a slider 15 is slidably connected to each guide rail 9. A pair of second springs 13 are fixedly connected between the slider 15 and the metal block 203, and a driving component for driving the slider 15 to slide along the guide rail 9 is connected between each metal block 203 and the resistor 5; the resistor 5 and the guide rail 9 are both made of rubber. When the resistor 5 and the single box 2 are separated, the resistor 5 can drive the slider 15 to slide along the guide rail 9, so that the driving component will grab the power supply wire when separating from the upper and lower surfaces of the terminal 6, and use the impact force of the second spring 13 to drive the driving component to separate the wire and the terminal 6, so as to prevent the terminal 6 from overheating and reducing its service life after the resistor 5 fails.

[0022] Specifically, the integrator 11 is fixedly installed on both sides of the slider 15, and the first spring 10 is fixedly connected to the integrator 11. The bottom of the integrator 11 is slidably connected to a card block 12, and the top of the card block 12 is connected to a push rod, the push rod and the first spring 10 are fixedly connected, and the bottom of the card block 12 is slidably connected to the terminal 6; the driving component includes a first wedge 16 fixedly installed on the resistor 5, and both ends of the upper and lower sides of the metal block 203 are fixedly installed with positioning seats 18, and a hinge shaft 19 is slidably connected between the two positioning seats 18, and a third spring 20 is fixedly connected between the hinge shaft 19 and the guide rail 9. One end of the hinge shaft 19 is rotatably connected to the card plate 14, and one side of the card plate 14 is against the slider 15. The middle part of the card plate 14 forms a lever structure with the corner of the slider 15 as the fulcrum. A second wedge 17 is fixedly installed on the top of one end of the card plate 14, and the first wedge 16 and the second wedge 17 are against each other. When the resistor 5 is popped out, the resistor 5 drives the first wedge 16 to move, and the first wedge 16 can be By driving the second wedge 17 downward, the third spring 20 is compressed, and the hinge shaft 19 descends, causing the middle part of the card plate 14 to have an upward tendency to tilt with the corner of the slider 15 as the fulcrum. Therefore, the other end of the card plate 14 is separated from the slider 15, and the second spring 13 releases the elastic force to the slider 15, pushing the slider 15 out along the guide rail 9. When the slider 15 separates from the terminal 6, the first spring 10 used to control the push rod is reset, causing the card block 12 to descend and contact the wire. Moreover, due to the kinetic energy released by the second spring 13, the card block 12 can pull the wire away from the interface of the terminal 6 when it is attached, preventing the terminal 6 from continuously supplying power to the equipment for a long time without voltage regulation, thereby causing a safety hazard. After the terminal 6 is not in the power supply state, the switchboard 1 will identify the state of the single box 2, thereby ensuring that each single box 2 is in normal working condition, so that the single box 2 can be manually pulled out of the switchboard 1 and replaced with a new resistor 5.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-high voltage and large capacitance switch cabinet, comprising a switchboard (1), characterized in that: The switchboard (1) is detachably connected to a plurality of single boxes (2), and each of the single boxes (2) is fixedly installed with a plurality of metal blocks (203), and a plurality of terminals (6) are fixedly connected to one side of the metal block (203). A pair of resistors (5) are slidably connected to each of the terminals (6). The side walls of the resistors (5) are in contact with and abut against the single box (2). The resistors (5) are fixedly installed with a plurality of conductive blocks (501) near the side walls of the terminals (6). A resisting block (502) is fixedly connected to one side of each conductive block (501). A heat dissipation fan (201) is fixedly installed at both ends of the other side of the single box (2), and a connector (202) is fixedly installed in the middle of the other side of the single box (2). A heat dissipation assembly (3) is fixedly installed on the top of the switchboard (1), and a signal connector (4) is fixedly installed in the middle of one side of the single box (2).

2. The ultra-high voltage and high-capacitance switchgear according to claim 1, characterized in that: A metal sheet (21) is fixedly connected to one side of each of the stop blocks (502), a connecting rod (22) is fixedly connected to one end of the metal sheet (21), one end of the connecting rod (22) extends out of the resistor sheet (5), and a display light (8) is fixedly connected to one end thereof, a guide piece is fixedly connected to the middle of each of the metal sheets (21), a first connecting piece (25) and a second connecting piece (2501) are fixedly connected between the two guide pieces, the other end of the connecting rod (22) is rotatably connected to a magnetic head (23), a pad (26) is fixedly connected to one side of the magnetic head (23), a fourth spring (24) is fixedly connected to one side of the magnetic head (23), a washer (29) is fixedly connected to one end of the fourth spring (24), and the washer (29) and the connecting rod (22) are slidably connected.

3. The ultra-high voltage and high-capacitance switchgear according to claim 2, characterized in that: Both ends of the first connecting piece (25) and the second connecting piece (2501) are fixedly connected to an extension piece (27), and one end of each extension piece (27) is fixedly connected to an electromagnet (28), and the electromagnet (28) is electrically connected to the conductive block (501) through the extension piece (27) and the guide piece.

4. The ultra-high voltage and high-capacitance switchgear according to claim 3, characterized in that: Both sides of the single box (2) are rotatably connected to a first belt (35), one end of the first belt (35) is transmission-connected to a second belt (36), one end of the second belt (36) is connected to the motor output shaft, and the other end of the first belt (35) is connected to a first gear (30), and the two first gears (30) are respectively located on the upper and lower sides of the switchboard (1), and the upper and lower sides of the switchboard (1) are rotatably connected to the second gear (31), and the first gear (30) and the second gear (31) are meshed and transmission-driven.

5. The ultra-high voltage and large capacitance switch cabinet according to claim 4, characterized in that: A second sealing block (34) is fixedly connected to one side of the second gear (31), a suspension (32) is fixedly mounted on one side of each second connecting piece (2501), the bottom of the suspension (32) is in contact with the resistor (5), a fifth spring (33) is fixedly connected to the middle of the suspension (32), one end of the fifth spring (33) is fixedly connected to the connecting block, a first sealing block (7) is fixedly connected to one side of the first gear (30), and the first sealing block (7) is rotatably connected to the single box (2).

6. The ultra-high voltage and large capacitance switch cabinet according to claim 1, characterized in that: Guide rails (9) are fixedly mounted on the upper and lower ends of each metal block (203), a slider (15) is slidably connected to each guide rail (9), a pair of second springs (13) are fixedly connected between the slider (15) and the metal block (203), and a driving assembly for driving the slider (15) to slide along the guide rail (9) is connected between each metal block (203) and the resistor (5).

7. The ultra-high voltage and large capacitance switch cabinet according to claim 6, characterized in that: An integrator (11) is fixedly mounted on both sides of the slider (15), a first spring (10) is fixedly connected to the integrator (11), a clamping block (12) is slidably connected to the bottom of the integrator (11), a top rod is connected to the top of the clamping block (12), the top rod is fixedly connected to the first spring (10), and the bottom of the clamping block (12) is slidably connected to the terminal (6).

8. The ultra-high voltage and high-capacitance switchgear according to claim 6, characterized in that: The driving assembly includes a first wedge (16) fixedly mounted on the resistor (5), positioning seats (18) fixedly mounted on both ends of the upper and lower sides of the metal block (203), a hinge shaft (19) slidably connected between the two positioning seats (18), a third spring (20) fixedly connected between the hinge shaft (19) and the guide rail (9), one end of the hinge shaft (19) is rotatably connected to a card plate (14), one side of the card plate (14) is against the slider (15), the middle part of the card plate (14) forms a lever structure with the corner of the slider (15) as a fulcrum, a second wedge (17) is fixedly mounted on the top of one end of the card plate (14), and the first wedge block (16) and the second wedge block (17) are against each other.

9. The ultra-high voltage and large capacitance switch cabinet according to claim 6, characterized in that: The resistor sheet (5) and the guide rail (9) are both made of rubber.

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