A pot-type quick switch control device

Abstract

The application discloses a kind of tank type quick switch control device, belong to switch technical field.It includes jar body and mounting bracket, the inner wall of the jar body is equipped with sliding block ball support structure, the mounting bracket is rotatably connected with sliding block ball support structure, the top of the jar body is equipped with mounting plate, side is equipped with overhaul hole and inlet-outlet line locking nut;The energy storage unit is arranged in the upper portion of mounting bracket, and is arranged in circular ring type around operating mechanism, for the energy storage of operating mechanism's opening and closing;The control unit is arranged in the lower portion of mounting bracket, for controlling the energy of energy storage unit opening and closing operation;The rotating mechanism is arranged in the bottom of mounting bracket, for when overhauling, energy storage unit and control unit are rotated to overhaul hole;The energy storage and control unit of the application and quick switch operating mechanism are arranged with jar body, on the one hand, reduce the length of connecting line to reduce loop stray inductance, on the other hand, facilitate wiring harness connection, reduce the cost of energy storage and control unit.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of tank type quick switch control device, belong to switch technical field. BACKGROUND

[0002] Quick switch compared to traditional switch has the characteristics such as simple structure, maintenance and overhaul are convenient, can effectively inhibit the harm caused by short-circuit current of power grid, wherein tank type quick switch is widely used by virtue of structure stable, high safety, strong environmental adaptability and excellent arc extinguishing capacity.But the operating mechanism and energy storage and control unit of existing tank type quick switch are independently arranged, and the floor area is large;Energy storage and control unit is separately configured outdoor cabinet, and the cost is higher;Operating mechanism in tank body and energy storage and control unit in cabinet are connected by bottom wiring, and wiring operation and maintenance and overhaul are difficult, the length of connection line increases the stray inductance of line. SUMMARY

[0003] The present application aims to overcome the deficiencies of the prior art, provide a kind of tank type quick switch control device, solve the problem that operating mechanism in existing tank body and energy storage and control unit in cabinet are connected by bottom wiring;

[0004] To achieve the above-mentioned purpose / To solve the above-mentioned technical problems, the present application is realized by using the following technical scheme:

[0005] A kind of tank type quick switch control device, comprising:

[0006] Tank type structure, including tank body and mounting bracket, the inner wall of the tank body is equipped with sliding block ball support structure, the mounting bracket is rotatably connected with sliding block ball support structure, the top of the tank body is equipped with mounting plate, and the side is equipped with maintenance hole and incoming-outgoing line locking nut;

[0007] Energy storage unit, the energy storage unit is arranged in the upper portion of mounting bracket, and is arranged in circular ring type around operating mechanism, for storing energy for the opening and closing of operating mechanism;

[0008] Control unit, the control unit is arranged in the lower portion of mounting bracket, for controlling energy storage unit to release the energy of opening and closing operation;

[0009] Rotary mechanism, the rotary mechanism is arranged in the bottom of mounting bracket, for rotating energy storage unit and control unit to maintenance hole when being maintained.

[0010] Optionally, the mounting bracket includes upper support plate and lower support plate, the upper support plate and lower support plate are connected by support column, the energy storage unit is installed on the upper support plate, and the control unit is installed on the lower support plate.

[0011] Optionally, the energy storage unit comprises a circularly arranged energy storage capacitor, an air switch, a phoenix terminal, a low-voltage power module, a high-voltage power module, a discharge resistor and a discharge mechanism around the operating mechanism, one end of the air switch is connected to the power line entering the inside of the tank from the inlet and outlet line locking nut, and the other end is connected to the phoenix terminal; one part of the phoenix terminal is connected to the input end of the low-voltage power module, and the other part is connected to the input end of the high-voltage power module, one end of the discharge resistor is connected to the positive electrode of the energy storage capacitor, and the other end is connected to the upper terminal of the discharge mechanism, the discharge mechanism is provided with two groups, corresponding to the opening and closing of the two groups of capacitors, and the lower terminal of the discharge mechanism is connected to the negative electrode of the energy storage capacitor.

[0012] Optionally, the control unit comprises an opening control silicon stack, a communication optical fiber adapter flange, a closing control silicon stack and a control board card, the opening control silicon stack and the closing control silicon stack comprise a charging rectifier diode, a trigger thyristor and a freewheeling diode, one end of the charging rectifier diode is connected to the output end of the high-voltage power module, and the other end is connected to the positive electrode of the energy storage capacitor; one end of the trigger thyristor is connected to the positive electrode of the energy storage capacitor, and the other end is connected to the positive electrode of the electromagnetic repulsion coil of the operating mechanism, the control end of the trigger thyristor is connected to the thyristor trigger module of the control board card, and the freewheeling diode is connected to the repulsion coil of the operating mechanism, used for slowly releasing the residual energy in the repulsion coil of the operating mechanism, one end of the communication optical fiber adapter flange is connected to the control board card, and the other end is connected to the communication optical fiber entering from the inlet and outlet line locking nut; the control board card receives the opening and closing instructions of the external control background through the communication optical fiber, converts them into thyristor trigger signals to control the energy storage capacitor to release electric energy to the operating mechanism, and realizes the opening and closing operation of the control fast switch operating mechanism.

[0013] Optionally, the output end of the low-voltage power module is connected to the control board card to provide power input for it, and the output end of the high-voltage power module is connected to the opening control silicon stack and the closing control silicon stack.

[0014] Optionally, the energy storage capacitor is composed of cylindrical capacitors, which are divided into opening capacitor groups and closing capacitor groups, and the single capacitors are connected in parallel.

[0015] Optionally, the rotating mechanism comprises a vertical rotating shaft, a transmission mechanism, a horizontal rotating shaft, a bearing seat and a support seat, the upper end of the vertical rotating shaft is fixedly connected with the lower end of the mounting bracket, one end of the transmission mechanism is connected with the vertical rotating shaft, and the other end is connected with the horizontal rotating shaft, and the bearing seat provides rotating support for the two rotating shafts; one end of the support seat is connected with the bearing seat, and the other end is fixedly connected with the tank.

[0016] Optionally, the horizontal rotating shaft extends out of the tank and is provided with a detachable driving handle.

[0017] Optionally, the two maintenance holes are provided, one corresponding to the upper layer of the mounting bracket, and the other corresponding to the lower layer of the mounting bracket.

[0018] Optionally, the manhole is provided with a cover plate.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The energy storage and control unit is arranged with the tank body, which reduces the length of the connecting line to reduce the loop stray inductance, facilitates the connection of the wire harness, reduces the cost of the energy storage and control unit, and is arranged in a ring around the operating mechanism to maximize the space size; the energy storage and control unit is arranged in a layered and modular manner, the functional classification is clear and explicit, and the electromagnetic interference of the large current on the control system when the energy storage capacitor releases electric energy is avoided; the rotating structure allows the entire energy storage and control unit to be repaired from one side of the tank body, is suitable for a single-face repair structure arrangement in a small space, and reduces the number of manholes on the tank body to improve the overall appearance and protection performance of the energy storage and control unit.

[0021] The energy storage and control unit is arranged in a layered and modular manner, the functional classification is clear and explicit, and the electromagnetic interference of the large current on the control system when the energy storage capacitor releases electric energy is avoided.

[0022] The rotating structure allows the entire energy storage and control unit to be repaired from one side of the tank body, is suitable for a single-face repair structure arrangement in a small space, and reduces the number of manholes on the tank body to improve the overall appearance and protection performance of the energy storage and control unit. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an external structure schematic diagram of the embodiment of the present application;

[0024] Figure 2 It is an internal structure schematic diagram of the embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the tank structure of the present application;

[0026] Figure 4 It is a schematic diagram of the mounting bracket of the present application;

[0027] Figure 5 It is a schematic diagram of the energy storage and control unit of the present application;

[0028] Figure 6 It is a schematic diagram of the rotating mechanism of the present application;

[0029] Figure 7 It is a schematic diagram of the repair state structure of the present application.

[0030] In the figure: 1 - pot type structure, 2 - energy storage unit, 3 - control unit, 4 - rotating mechanism, 5 - operating mechanism, 6 - mounting plate, 11 - pot body, 12 - access hole, 13 - inlet and outlet line locking nut, 14 - sliding block ball bearing support structure, 15 - lower support plate, 16 - support column, 17 - upper support plate, 21 - energy storage capacitor, 22 - air switch, 23 - phoenix terminal, 24 - low-voltage power module, 25 - high-voltage power module, 26 - discharge resistor, 27 - discharge mechanism, 31 - opening control silicon stack, 32 - communication optical fiber adapter flange, 33 - closing control silicon stack, 34 - control board card, 41 - vertical rotating shaft, 42 - transmission mechanism, 43 - horizontal rotating shaft, 44 - bearing seat, 45 - support seat. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0034] As Figures 1-2 , a pot type quick switch control device is disclosed, comprising:

[0035] The tank structure 1 includes a tank body 11 and a mounting bracket. The inner wall of the tank body 11 is provided with a slider ball support structure 14. The mounting bracket is rotatably connected to the slider ball support structure 14. The top of the tank body 11 is provided with a mounting plate 6, and the side is provided with an inspection hole 12 and an inlet / outlet locking nut 13.

[0036] Energy storage unit 2, which is located on the upper part of the mounting bracket and arranged in a ring around the operating mechanism, is used to store energy for the opening and closing of the operating mechanism;

[0037] Control unit 3, located at the lower part of the mounting bracket, is used to control the energy storage unit 2 to release energy for opening and closing operations;

[0038] Rotation mechanism 4, located at the bottom of the mounting bracket, is used to rotate the energy storage unit 2 and the control unit 3 to the inspection hole 12 during maintenance.

[0039] like Figure 1 As shown, the upper part of the tank structure 1 is fixedly connected to the mounting plate 6, which serves to support and protect the energy storage and control unit. The energy storage unit 2 is arranged on the upper part of the tank structure and is arranged in a ring around the operating mechanism. Its main function is to store energy for the opening and closing of the operating mechanism. The control unit 3 is arranged on the lower part of the tank structure, which serves to control the energy storage unit 2 to release the energy for opening and closing the circuit. The rotating mechanism 4 is arranged at the bottom of the tank structure, which can rotate the energy storage and control unit during maintenance. The mounting plate 6 is fixedly connected to the upper end of the tank structure, which serves to install and fix the tank structure 1 and protect the upper part of the energy storage and control unit.

[0040] like Figures 3-4 As shown, in this embodiment, the tank 11 has a bucket-shaped structure, and the energy storage and control unit and the operating mechanism are arranged inside it. The upper end is fixedly connected to the mounting plate 6. The inspection hole 12 is arranged on the tank 11, and the upper and lower layers are arranged to facilitate the inspection and maintenance of the energy storage unit 2 and the control unit 3. A cover plate is provided on it for protection. The inlet and outlet locking nut 13 is installed on the opening of the tank 11. The external input power line and communication optical fiber enter the interior of the tank 11 through the inlet and outlet locking nut 13 and connect to the energy storage unit 2 and the control unit 3. The slider ball support structure 14 is installed on the inner wall of the tank 11 to provide bottom support for the mounting bracket.

[0041] like Figure 4As shown, in this embodiment, the mounting bracket includes an upper support plate 17 and a lower support plate 15, which are connected by a support column. The energy storage unit 2 is mounted on the upper support plate 17, and the control unit 3 is mounted on the lower support plate 15. The ball bearing structure reduces the frictional force of rotation on the lower support plate 15; the lower support plate 15 provides support for the control unit 3, and its lower end contacts the slider ball bearing support structure 14; the support column 16 is arranged between the upper support plate 17 and the lower support plate 15 to support the upper support plate 17.

[0042] like Figure 5 As shown, in this embodiment, the energy storage capacitor 21 is composed of cylindrical capacitors, divided into a tripping capacitor group and a closing capacitor group. Individual capacitors are connected in parallel, and the capacitance value can be adjusted by increasing or decreasing the number of capacitors. One end of the air switch 22 is connected to the power line entering the tank 11 from the inlet / outlet locking nut 13, and the other end is connected to the phoenix terminal 23. A part of the phoenix terminal 23 is connected to the input terminal of the low-voltage power module 24, and the other part is connected to the input terminal of the high-voltage power module 25. The output terminal of the low-voltage power module 24 is connected to the control board 34 to provide power input. The output terminal of the high-voltage power module 25 is connected to the tripping control silicon stack 31 and the closing control silicon stack 33. One end of the discharge resistor 26 is connected to the positive terminal of the energy storage capacitor 21, and the other end is connected to the upper terminal of the discharge mechanism 27. The discharge mechanism 27 has two sets of discharge mechanisms, corresponding to the tripping and closing of the two sets of capacitors, and its lower terminal is connected to the negative terminal of the energy storage capacitor 21.

[0043] To further explain, the opening control silicon stack 31 and the closing control silicon stack 33 have the same structure, both including a charging rectifier diode, a trigger thyristor, and a freewheeling diode. One end of the rectifier diode is connected to the output terminal of the high-voltage power module 25, and the other end is connected to the positive terminal of the energy storage capacitor 21. One end of the trigger thyristor is connected to the positive terminal of the energy storage capacitor 21, and the other end is connected to the positive terminal of the electromagnetic repulsion coil of the operating mechanism. The control terminal of the trigger thyristor is connected to the thyristor trigger module of the control board 34. When the control board sends a conduction signal, the trigger thyristor conducts, and the electrical energy stored in the energy storage capacitor 21 is released into the repulsion coil of the operating mechanism, thereby driving the opening and closing actions of the operating mechanism. The two ends of the freewheeling diode are connected to the repulsion coil of the operating mechanism to slowly release the residual energy in the repulsion coil of the operating mechanism. One end of the communication fiber optic adapter flange 32 is connected to the control board 34, and the other end is connected to the communication fiber optic cable entering from the inlet / outlet locking nut 13. The control board 34 mainly receives the opening and closing commands from the external control backend through the communication fiber optic cable, converts them into thyristor trigger signals to control the energy storage capacitor 21 to release electrical energy to the operating mechanism, thereby controlling the opening and closing operation of the fast switch operating mechanism.

[0044] like Figure 6As shown, in the embodiment, the upper end of the vertical rotating shaft 41 is fixedly connected with the lower end of the lower supporting plate 15, so as to drive the lower supporting plate 15 to rotate; one end of the transmission mechanism 42 is connected with the vertical rotating shaft 41, and the other end is connected with the horizontal rotating shaft 43, the horizontal rotating shaft 43 extends out of the tank body 11, and the other end thereof can be inserted into a crank handle, so as to provide a power source for the whole rotating mechanism 4; the bearing seat 44 provides rotating support for the two rotating shafts; one end of the supporting seat 45 is connected with the bearing seat 44, so as to provide a fixed point, and the other end is fixedly connected with the tank body 11.

[0045] In the embodiment, the vertical rotating shaft 41 and the horizontal rotating shaft 43 adopt a worm gear structure, and the main function thereof is to convert horizontal rotation into vertical rotation.

[0046] In another embodiment, the vertical rotating shaft 41 and the horizontal rotating shaft 43 can also adopt a bevel gear transmission structure, and the main function thereof is to convert horizontal rotation into vertical rotation.

[0047] As shown, Figure 7 the operation end of the horizontal rotating shaft 43 is arranged at the same position of the tank body 11, and the degree of integration is high, so that the maintenance operation is facilitated. Moreover, the air switch 22 connected with the power supply line outside the tank body 11, the communication optical fiber adapter flange 32 connected with the external communication optical fiber, the opening control silicon stack 31 and the closing control silicon stack 33 connected with the repulsion coil of the internal operating mechanism, and the structure of the external interface of the energy storage and control unit are all arranged opposite to the manhole 12, so that the interface connection between the energy storage and control unit and the outside can be removed at the first time during the maintenance, so that the lower supporting plate 15 is further rotated to maintain other parts of the energy storage and control unit.

[0048] The energy storage and control unit and the quick switch operating mechanism are arranged with the tank body, which can reduce the length of the connecting line to reduce the loop stray inductance, facilitate the connection of the wire harness, and reduce the cost of the energy storage and control unit. Moreover, the energy storage and control unit is arranged in a ring shape around the operating mechanism, so that the space size is maximally saved; the energy storage and control unit is arranged in a layered and modular manner, the functionality is classified clearly and explicitly, and the electromagnetic interference of the large current to the control system when the energy storage capacitor releases the electric energy is avoided; the rotating structure enables the whole energy storage and control unit to be maintained from one side of the tank body, is suitable for the single-side maintenance structure arrangement in a narrow space, and reduces the number of manholes on the tank body, so that the overall appearance and protection performance of the energy storage and control unit are improved.

[0049] The above only describes the preferred embodiments of the present application, and it should be noted that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A potentiometer type quick switch control device, characterized by comprising: The utility model relates to a kind of energy storage device for operating mechanism of high-voltage switch, including: Tank structure (1), including tank body (11) and mounting bracket, the inner wall of the tank body (11) is equipped with sliding block ball support structure (14), the mounting bracket is rotatably connected with sliding block ball support structure (14), the top of the tank body (11) is equipped with mounting plate (6), side is equipped with access hole (12) and incoming / outgoing line locking nut (13); Energy storage unit (2), the energy storage unit (2) is located in the upper portion of mounting bracket, and is arranged in circular ring type around operating mechanism, for the energy storage of operating mechanism's opening and closing brake; Control unit (3), the control unit (3) is located in the lower portion of mounting bracket, for controlling energy storage unit (2) release opening and closing brake operation energy; Rotating mechanism (4), the rotating mechanism (4) is located in the bottom of mounting bracket, for rotating energy storage unit (2) and control unit (3) to access hole (12) when overhauling; The energy storage unit (2) includes energy storage capacitor (21) arranged in circular ring type around operating mechanism, air switch (22), phoenix terminal (23), low-voltage power module (24), high-voltage power module (25), discharge resistance (26) and discharge mechanism (27), one end of the air switch (22) is connected from incoming / outgoing line locking nut (13) into the power line inside tank body (11), the other end is connected to phoenix terminal (23);One part of the phoenix terminal (23) is connected with the input end of low-voltage power module (24), and the other part is connected with the input end of high-voltage power module (25), one end of the discharge resistance (26) is connected with the positive electrode of energy storage capacitor (21), and the other end is connected with the upper terminal of discharge mechanism (27), the discharge mechanism (27) is equipped with two groups, respectively corresponding two groups of capacitors of opening and closing brake, the lower terminal of the discharge mechanism (27) is connected with the negative electrode of energy storage capacitor (21); The control unit (3) includes opening and closing brake control silicon pile (31), communication fiber adapter flange (32), closing brake control silicon pile (33) and control board card (34), the opening and closing brake control silicon pile (31) and closing brake control silicon pile (33) include charging rectifier diode, trigger thyristor and freewheeling diode, wherein one end of the charging rectifier diode is connected with the output end of high-voltage power module (25), and the other end is connected with the positive electrode of energy storage capacitor (21);One end of the trigger thyristor is connected with the positive electrode of energy storage capacitor (21), and the other end is connected with the positive electrode of operating mechanism electromagnetic repulsion coil, the control end of trigger thyristor is connected with the thyristor trigger module of control board card (34), the two ends of freewheeling diode are connected with the repulsion coil of operating mechanism, for slowly releasing residual energy in the repulsion coil of operating mechanism, one end of the communication fiber adapter flange (32) is connected with control board card (34), and the other end is connected with the communication fiber entering from incoming / outgoing line locking nut (13);The control board card (34) receives the opening and closing brake instruction of external control background through communication fiber, converts into thyristor trigger signal to control energy storage capacitor (21) to release electric energy to operating mechanism, realizes the opening and closing brake operation of control quick-acting switch operating mechanism.

2. The tank quick switch control device according to claim 1, characterized by, The mounting support comprises an upper support plate (17) and a lower support plate (15), the upper support plate (17) and the lower support plate (15) are connected by a support column, the energy storage unit (2) is installed on the upper support plate (17), and the control unit (3) is installed on the lower support plate (15).

3. The tank quick switch control device of claim 1, wherein, The output end of the low-voltage power module (24) is connected with a control board card (34) to provide power input, and the output end of the high-voltage power module (25) is connected with a tripping control silicon stack (31) and a closing control silicon stack (33).

4. The tank quick switch control device of claim 1, wherein, The energy storage capacitor (21) is composed of cylindrical capacitors and is divided into a tripping capacitor group and a closing capacitor group, and single capacitors are connected in parallel.

5. The tank quick switch control device of claim 1, wherein, The rotating mechanism (4) comprises a vertical rotating shaft (41), a transmission mechanism (42), a horizontal rotating shaft (43), a bearing seat (44) and a support seat (45), the upper end of the vertical rotating shaft (41) is fixedly connected with the lower end of the mounting support, one end of the transmission mechanism (42) is connected with the vertical rotating shaft (41), the other end is connected with the horizontal rotating shaft (43), and the bearing seat (44) provides rotating support for the two rotating shafts; one end of the support seat (45) is connected with the bearing seat (44), and the other end is fixedly connected with the tank body (11).

6. The tank quick switch control device of claim 5, wherein, The horizontal rotating shaft (43) extends out of the tank body (11) and is provided with a detachable driving handle.

7. The tank quick switch control device of claim 1, wherein, The maintenance hole (12) is provided with two, one corresponds to the upper layer of the mounting support, and the other corresponds to the lower layer of the mounting support.

8. The tank quick switch control device of claim 1, wherein, The maintenance hole (12) is provided with a cover plate.

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