An explosion-proof intelligent on-off switch for 10 kV distribution network

Abstract

The present invention discloses an explosion-proof intelligent on-off switch for a 10 kV distribution network, which comprises a housing. Two first conductive columns penetrate through one end of the housing, and a second conductive column penetrates through the other end of the housing. An installation seat is installed inside the housing through a driving mechanism. Four arc-shaped grooves are arranged equidistantly on the installation seat. Arc-shaped conductive blocks are fixed in the arc-shaped grooves at both ends of the installation seat. A guiding mechanism is installed on the installation seat. The arc-shaped conductive block is connected to the second conductive column through a second wire. A partition plate is installed inside the housing through a bracket. Conductive balls are installed on both sides of the partition plate through elastic mechanisms. The conductive ball is connected to the first conductive column through a first wire. A vacuum pump is connected to the side of the housing through a vacuum suction pipe. The working reliability of the present invention is improved, the opening and closing performance is stable, the contact wear is small, and the service life is relatively long.

Description

Technical Field

[0001] The present invention relates to the technical field of 10 kV distribution networks, and particularly to an explosion-proof intelligent on-off switch for a 10 kV distribution network. Background Art

[0002] The 10 kV distribution network belongs to the medium-voltage distribution network. The distribution network is composed of overhead lines, cables, poles, distribution transformers, disconnect switches, reactive power compensation capacitors, and some auxiliary facilities, etc., and is a network that plays an important role in distributing electric energy in the power grid.

[0003] Currently, the tightness of the on-off switches used in the distribution network is not good, and moisture, dust, etc. are likely to enter the interior. These adhere to the conductive parts and have a great impact on the conductive components, and even cause short circuits, etc. In view of such problems, we propose an explosion-proof intelligent on-off switch for a 10 kV distribution network. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose an explosion-proof intelligent on-off switch for a 10 kV distribution network.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An explosion-proof intelligent on-off switch for a 10 kV distribution network includes a housing. Two first conductive columns penetrate through one end of the housing, and a second conductive column penetrates through the other end of the housing. An installation seat is installed inside the housing through a driving mechanism. Four arc-shaped grooves are arranged equidistantly on the installation seat. Arc-shaped conductive blocks are fixed in the arc-shaped grooves at both ends of the installation seat. A guiding mechanism is installed on the installation seat. The arc-shaped conductive block is connected to the second conductive column through a second wire. A partition is installed inside the housing through a bracket. Conductive balls are installed on both sides of the partition through elastic mechanisms. The conductive balls are connected to the first conductive columns through first wires. A vacuum pump is connected to the side of the housing through a vacuum suction pipe.

[0007] Further, sealing rings are sleeved outside both the first conductive column and the second conductive column, and the first conductive column and the second conductive column are sealed with the housing through the sealing rings respectively.

[0008] Further, the guiding mechanism includes a first sleeve and a sliding rod. The first sleeve is fixed on the inner wall of the housing, and the sliding rod is slidably sleeved inside the first sleeve. The sliding rod is fixed on the installation seat.

[0009] Further, the driving mechanism includes a motor, a worm gear, a second fixed seat, a worm, a first fixed seat, a gear, and a rack. The second fixed seat and the first fixed seat are both fixed inside the housing. The first fixed seat is equipped with a motor, and a worm gear is installed on the output shaft of the motor. The second fixed seat is rotatably installed with a worm, and the worm is in meshing transmission with the worm gear. One end of the worm is fixed with a gear, and the rack is fixed on the mounting seat.

[0010] Further, the worm is in meshing transmission with the worm gear, and the gear is in meshing transmission with the rack.

[0011] Further, the elastic mechanism includes a second sleeve, a spring, and a push rod. The second sleeve is fixed on the partition board. The inside of the second sleeve is connected with a push rod through a spring. The push rod is slidably sleeved inside the second sleeve, and the conductive ball is fixed on the push rod.

[0012] Further, two clamp ammeters are installed on the bracket, and the clamp ammeters are sleeved outside the first wire.

[0013] Further, a one-way valve is installed on the pipe section of the vacuum suction pipe, and a vacuum probe is installed inside the housing.

[0014] Further, an audible and visual alarm is installed on the side of the housing.

[0015] Further, a control box is installed on the side of the housing. A touch screen is installed on the side of the control box. A backup battery, a positioning module, a data acquisition module, a data processing module, and a communication module are installed inside the control box.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, through the vacuum pump and the vacuum suction pipe, a vacuum-like state can be maintained inside the housing. In this state, the internal components are not easily affected by moisture, dust, harmful gases, etc., and thus their performance is not reduced. The working reliability is improved, the opening and closing performance is stable, the contact wear is small, and the service life is relatively long. The provided vacuum probe can detect the vacuum condition inside the housing in real time, facilitating timely vacuum pumping. The provided one-way valve can prevent gas from entering the housing in the reverse direction. By separating the two conductive balls with a partition board, the mutual interference of the arcs that may be generated when the two conductive balls work can be effectively avoided, which has a protective effect.

[0018] 2. In the present invention, the motor drives the worm gear to rotate. The meshing between the worm gear and the worm can drive the gear to rotate, and the meshing between the gear and the rack can drive the mounting seat to translate. The worm and worm gear transmission structure has a fast response and can quickly achieve the switching purpose. After the mounting seat translates, there are three contact forms between the two conductive balls and the mounting seat. The first is that the two conductive balls are located in the two arc-shaped grooves in the middle of the mounting seat, and at this time the circuits are all disconnected. The second and the third are both that one conductive ball is in the middle and the other conductive ball is at one end and electrically connected to the arc-shaped conductive block, thus forming three mutually locked on-off forms to meet the actual needs.

[0019] 3. In the present invention, the spring can improve the contact stability between the conductive ball and the mounting seat. The first sleeve and the sliding rod can improve the moving stability of the mounting seat. The clamp ammeter can detect in real time whether there is current in the circuit, so as to know whether the circuit is conducting. The set sound and light alarm can give a sound and light alarm under abnormal conditions. The touch screen can be directly operated and controlled. The backup battery ensures that the internal components can continue to work under the condition of power failure. The set positioning module can perform positioning, which is convenient for the operator to maintain. The set data acquisition module can collect the detected data. The set data processing module can process the collected data and convert it into a signal that can be sent. The set communication module can transmit the information to the terminal.

[0020] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification and the foregoing claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings, where:

[0022] Figure 1 is a schematic structural diagram of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0023] Figure 2 is a schematic structural diagram of the mounting seat of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0024] Figure 3 is a schematic structural diagram of the sealing ring of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0025] Figure 4Structural schematic diagram of the guiding mechanism of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0026] Figure 5 Structural schematic diagram of the driving mechanism of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0027] Figure 6 Structural schematic diagram of the elastic mechanism of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention;

[0028] Figure 7 Cross-sectional view of the control box of an explosion-proof intelligent on-off switch for a 10 kV distribution network proposed by the present invention.

[0029] In the figure: 1 housing, 2 guiding mechanism, 201 first sleeve, 202 sliding rod, 3 conductive ball, 4 elastic mechanism, 41 second sleeve, 42 spring, 43 push rod, 5 first wire, 6 partition board, 7 bracket, 8 driving mechanism, 81 motor, 82 worm gear, 83 second fixing seat, 84 worm, 85 first fixing seat, 86 gear, 87 rack, 9 mounting seat, 10 second wire, 11 first conductive column, 12 clamp ammeter, 13 control box, 14 sound and light alarm, 15 vacuum pump, 16 vacuum suction pipe, 17 check valve, 18 second conductive column, 19 vacuum probe, 20 touch screen, 21 backup battery, 22 positioning module, 23 data acquisition module, 24 data processing module, 25 communication module, 26 sealing ring, 27 arc groove, 28 arc conductive block. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Such as Figure 1 、 Figure 2As shown in the figure, an explosion-proof intelligent on-off switch for a 10 kV distribution network according to the present invention includes a housing 1. Two first conductive columns 11 penetrate through one end of the housing 1, and a second conductive column 18 penetrates through the other end of the housing 1. An installation seat 9 is installed inside the housing 1 through a driving mechanism 8. Four arc-shaped grooves 27 arranged at equal intervals are provided on the installation seat 9. Arc-shaped conductive blocks 28 are fixed in the arc-shaped grooves 27 at both ends of the installation seat 9. A guiding mechanism 2 is installed on the installation seat 9. The arc-shaped conductive block 28 is connected to the second conductive column 18 through a second wire 10. A partition 6 is installed inside the housing 1 through a bracket 7. Conductive balls 3 are installed on both sides of the partition 6 through elastic mechanisms 4. The conductive balls 3 are connected to the first conductive columns 11 through first wires 5. A vacuum pump 15 is connected to the side of the housing 1 through a vacuum suction pipe 16. Two clamp-on ammeters 12 are installed on the bracket 7. The clamp-on ammeters 12 are sleeved outside the first wire 5. A one-way valve 17 is installed on the pipe section of the vacuum suction pipe 16. A vacuum probe 19 is installed inside the housing 1. An audible and visual alarm 14 is installed on the side of the housing 1.

[0032] As Figure 3 shown, sealing rings 26 are sleeved outside both the first conductive column 11 and the second conductive column 18. The first conductive column 11 and the second conductive column 18 are respectively sealed with the housing 1 through the sealing rings 26.

[0033] As Figure 4 shown, the guiding mechanism 2 includes a first sleeve 201 and a sliding rod 202. The first sleeve 201 is fixed on the inner wall of the housing 1. The sliding rod 202 is slidably sleeved inside the first sleeve 201. The sliding rod 202 is fixed on the installation seat 9.

[0034] As Figure 5 shown, the driving mechanism 8 includes a motor 81, a worm gear 82, a second fixing seat 83, a worm 84, a first fixing seat 85, a gear 86, and a rack 87. The second fixing seat 83 and the first fixing seat 85 are both fixed inside the housing 1. A motor 81 is installed on the first fixing seat 85. A worm gear 82 is installed on the output shaft of the motor 81. A worm 84 is rotatably installed on the second fixing seat 83. The worm 84 meshes with the worm gear 82 for transmission. A gear 86 is fixed at one end of the worm 84. The rack 87 is fixed on the installation seat 9. The worm 84 meshes with the worm gear 82 for transmission, and the gear 86 meshes with the rack 87 for transmission.

[0035] As Figure 6 shown, the elastic mechanism 4 includes a second sleeve 41, a spring 42, and a push rod 43. The second sleeve 41 is fixed on the partition 6. The push rod 43 is connected to the inside of the second sleeve 41 through the spring 42. The push rod 43 is slidably sleeved inside the second sleeve 41. The conductive ball 3 is fixed on the push rod 43.

[0036] As Figure 7As shown in the figure, a control box 13 is installed on the side of the housing 1, a touch screen 20 is installed on the side of the control box 13, and a backup battery 21, a positioning module 22, a data acquisition module 23, a data processing module 24, and a communication module 25 are installed inside the control box 13.

[0037] The working principle and usage method of the present invention are as follows: In the present invention, through the vacuum pump 15 and the vacuum suction pipe 16, a vacuum-like state can be maintained inside the housing 1. In this environment, internal components are not easily affected by moisture, dust, harmful gases, etc., and their performance is not reduced. The working reliability is improved, the opening and closing performance is stable, the contact wear is small, and the service life is longer. The set vacuum probe 19 can detect the vacuum situation inside the housing 1 in real time, facilitating timely vacuum pumping. The set one-way valve 17 can prevent gas from entering the housing 1 in the reverse direction. By separating the two conductive balls 3 through the partition plate 6, the mutual interference of the arcs that may be generated when the two conductive balls 3 work can be effectively avoided, which has a protective effect.

[0038] The motor 81 drives the worm gear 82 to rotate. Through the meshing between the worm gear 82 and the worm 84, the gear 86 can be driven to rotate. Through the meshing between the gear 86 and the rack 87, the mounting seat 9 can be driven to translate. The worm and worm gear transmission structure has a fast response and can quickly achieve the switching purpose. After the mounting seat 9 translates, there are three contact forms between the two conductive balls 3 and the mounting seat 9. The first is that the two conductive balls 3 are located in the two arc-shaped grooves 27 in the middle of the mounting seat 9, and at this time the circuit is disconnected. The second and third are both that one conductive ball 3 is in the middle and the other conductive ball 3 is at one end and is electrically connected to the arc-shaped conductive block 28, thus forming three mutually locked on-off forms to meet the actual needs.

[0039] The spring 42 can improve the stability of the contact between the conductive ball 3 and the mounting seat 9. The first sleeve 201 and the slide bar 202 can improve the stability of the movement of the mounting seat 9. The clamp ammeter 12 can detect in real time whether there is current in the circuit, so as to know whether the circuit is conducting. The set sound and light alarm 14 can give a sound and light alarm under abnormal conditions. The touch screen 20 can be directly operated and controlled. The backup battery 21 ensures that the internal components can continue to work under the condition of power failure. The set positioning module 22 can perform positioning, which is convenient for the operator to maintain. The set data acquisition module 23 can collect the detected data. The set data processing module 24 can process the collected data and convert it into a signal that can be sent. The set communication module 25 can transmit the information to the terminal.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An explosion-proof intelligent on-off switch for a 10 kV distribution network, comprising a housing (1), characterized in that, Two first conductive columns (11) penetrate through one end of the housing (1), a second conductive column (18) penetrates through the other end of the housing (1), a mounting seat (9) is installed inside the housing (1) through a driving mechanism (8), four arc grooves (27) arranged at equal intervals are provided on the mounting seat (9), arc conductive blocks (28) are fixed in the arc grooves (27) at both ends of the mounting seat (9), a guiding mechanism (2) is installed on the mounting seat (9), the arc conductive block (28) is connected to the second conductive column (18) through a second wire (10), a partition plate (6) is installed inside the housing (1) through a bracket (7), conductive balls (3) are installed on both sides of the partition plate (6) through an elastic mechanism (4), and the conductive balls (3) are connected to the first conductive columns (11) through first wires (5); a vacuum pump (15) is connected to the side of the housing (1) through a vacuum suction pipe (16); The guiding mechanism (2) includes a first sleeve (201) and a sliding rod (202), the first sleeve (201) is fixed on the inner wall of the housing (1), the sliding rod (202) is slidably sleeved inside the first sleeve (201), and the sliding rod (202) is fixed on the mounting seat (9); the driving mechanism (8) includes a motor (81), a worm gear (82), a second fixing seat (83), a worm (84), a first fixing seat (85), a gear (86), and a rack (87), the second fixing seat (83) and the first fixing seat (85) are both fixed inside the housing (1), the motor (81) is installed on the first fixing seat (85), a worm gear (82) is installed on the output shaft of the motor (81), the worm (84) is rotatably installed on the second fixing seat (83), the worm (84) is in meshing transmission with the worm gear (82), a gear (86) is fixed at one end of the worm (84), and the rack (87) is fixed on the mounting seat (9); the sliding rod (202) and the rack (87) are respectively located on both sides of the mounting seat (9); The elastic mechanism (4) includes a second sleeve (41), a spring (42), and a push rod (43), the second sleeve (41) is fixed on the partition plate (6), the push rod (43) is connected inside the second sleeve (41) through the spring (42), the push rod (43) is slidably sleeved inside the second sleeve (41), and the conductive ball (3) is fixed on the push rod (43); after the mounting seat (9) is translated, there are three contact forms between the two conductive balls (3) and the mounting seat (9). One is that the two conductive balls (3) are located in the two middle arc grooves (27) of the mounting seat (9); the other two are forms in which one conductive ball (3) is in the middle and the other conductive ball (3) is electrically connected to the arc conductive block (28) at one end.

2. The explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, wherein Sealing rings (26) are sleeved outside the first conductive columns (11) and the second conductive columns (18), and the first conductive columns (11) and the second conductive columns (18) are respectively sealed with the housing (1) through the sealing rings (26).

3. An explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, characterized in that, The worm (84) is in meshing transmission with the worm wheel (82), and the gear (86) is in meshing transmission with the rack (87).

4. An explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, characterized in that, Two clamp ammeters (12) are installed on the bracket (7), and the clamp ammeters (12) are sleeved outside the first wire (5).

5. An explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, characterized in that, A one-way valve (17) is installed on the pipe section of the vacuum suction pipe (16), and a vacuum probe (19) is installed inside the housing (1).

6. The explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, characterized in that, An audible and visual alarm (14) is installed on the side of the housing (1).

7. An explosion-proof intelligent on-off switch for a 10 kV distribution network according to claim 1, characterized in that, A control box (13) is installed on the side of the housing (1). A touch screen (20) is installed on the side of the control box (13). A backup battery (21), a positioning module (22), a data acquisition module (23), a data processing module (24), and a communication module (25) are installed inside the control box (13).

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