Discharging device and discharging method of capacitor

Abstract

The invention discloses a discharging device and a discharging method of a capacitor, and relates to the technical field of capacitor discharging. The discharging device of the capacitor is used for performing discharging operation on the capacitor, the capacitor comprises two terminals, the discharging device comprises a discharging arm, a clamping structure, an insulating rod and a grounding assembly, and the discharging arm is configured to abut against the two terminals; the clamping structure comprises a support and two clamping pieces, the support is fixedly arranged on the discharging arm, and the two clamping pieces are arranged on the two opposite sides of the support in a sliding mode respectively. The insulating rod penetrates through the discharging arm, the insulating rod is in sliding fit with the discharging arm, the insulating rod is provided with a driving block, and when the driving block moves in the direction away from the discharging arm, the distance between the two clamping pieces is gradually increased; the grounding assembly comprises a grounding wire, one end of the grounding wire is connected with the discharge arm, and the other end of the grounding wire is used for grounding. The discharging device of the capacitor can ensure the reliability of contact between the terminal and the discharging arm, ensure the personal safety of maintainers, and achieve the effect of saving time and labor.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor discharge, and in particular to a capacitor discharge device and a capacitor discharge method. Background Art

[0002] The capacitor in the substation is an energy storage device. When the capacitor is powered off, a large amount of residual charge is still stored inside it. Therefore, before inspecting and repairing the capacitor, the capacitors should be discharged one by one to discharge all the residual charge to prevent electric shock accidents when the maintenance personnel touch the capacitor.

[0003] The existing discharge devices all ground one end of the grounding wire first, and then the operator holds the insulating rod to contact the discharge conductor with the terminal of the capacitor, which causes the operator to consume more physical energy and have a higher work intensity. It is also difficult to ensure the contact between the discharge conductor and the terminal, resulting in incomplete discharge of the capacitor and causing safety accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a capacitor discharge device and a discharge method, which can ensure the reliability of contact between the terminal and the discharge arm, ensure the personal safety of maintenance personnel, and achieve the effect of saving time and labor.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A discharge device for a capacitor, used for discharging a capacitor, wherein the capacitor comprises two terminals arranged at an interval, and the discharge device comprises:

[0007] a discharge arm, the discharge arm being configured to abut against the two terminals;

[0008] A clamping structure, the clamping structure comprising a bracket and two clamping parts, the bracket is fixedly arranged on the discharge arm, and the two clamping parts are respectively slidably arranged on two opposite sides of the bracket;

[0009] an insulating rod, the insulating rod being passed through the discharge arm, the insulating rod being slidably matched with the discharge arm, the insulating rod being provided with a driving block, when the driving block moves in a direction away from the discharge arm, the distance between the two clamping parts gradually increases, and each of the clamping parts is configured to clamp one of the terminals;

[0010] The grounding assembly comprises a grounding wire, one end of which is connected to the discharge arm, and the other end of which is used for grounding.

[0011] As an optional solution of the discharge device of the capacitor, a driving inclined surface is provided at one end of the clamping member close to the insulating rod, and the driving block is in sliding contact with the driving inclined surface.

[0012] As an optional solution for the discharge device of the above-mentioned capacitor, the clamping member includes a driving slider, a connecting rod and a clamping block connected in sequence, the driving inclined surface is arranged on the driving slider, and the connecting rod is passed through the bracket and slidably cooperates with the bracket.

[0013] As an optional solution of the discharge device of the capacitor, the clamping block is provided with a clamping groove, and the clamping groove can be clamped and matched with the terminal.

[0014] As an optional solution of the discharge device of the capacitor, the clamping structure further includes a first elastic member, and each of the clamping members corresponds to one of the first elastic members, so that the distance between the two clamping members is reduced.

[0015] As an optional solution of the discharge device of the capacitor, the discharge device further includes a second elastic member, two ends of which respectively abut against the bracket and the insulating rod, so that the driving block approaches and abuts against the discharge arm.

[0016] As an optional solution of the discharge device of the capacitor, the discharge arm is provided with a plurality of grooves on opposite sides of the clamping structure, and the terminal can be clamped into the groove on the corresponding side.

[0017] As an optional solution for the discharge device of the above-mentioned capacitor, the insulating rod includes a straight rod, a rotating rod and a connecting ball, the connecting ball and the rotating rod are fixedly connected, a ball groove is opened on the top of the straight rod, and the connecting ball is rotatably set in the ball groove.

[0018] As an optional solution for the discharge device of the capacitor, the straight rod includes a holding rod and a telescopic rod, the holding rod is slidably matched with the telescopic rod, and the ball groove is provided at one end of the telescopic rod away from the holding rod.

[0019] A capacitor discharging method is performed by the capacitor discharging device, the discharging method comprising:

[0020] S1: ground the ground wire;

[0021] S2: moving the clamping structure between two terminals of the capacitor, and making the discharge arm abut against the two terminals at the same time;

[0022] S3: Continue to push the insulating rod to gradually increase the distance between the two clamping members until both of the two clamping members abut against the corresponding terminals.

[0023] Beneficial effects of the present invention:

[0024] The present invention provides a capacitor discharge device. In the discharge device, an operator holds an insulating rod and moves a clamping structure between two terminals of a capacitor to be discharged. When the discharge arm abuts against the two terminals at the same time, the operator continues to move the insulating rod, and at this time the insulating rod and the bracket slide relative to each other, and the driving block of the insulating rod drives the two clamping parts to move away from each other. When the two clamping parts abut against the corresponding terminals, the reliability of the contact between the terminal and the discharge arm can be ensured, so that the capacitor can be discharged through the discharge arm and the grounding wire, ensuring the personal safety of the maintenance personnel, and achieving the effect of saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a first structural schematic diagram of a capacitor discharge device provided by the present invention;

[0026] Figure 2 is a second structural schematic diagram of the discharge device of the capacitor provided by the present invention;

[0027] Figure 3 It is a structural schematic diagram of the discharge arm and the clamping structure provided by the present invention.

[0028] In the figure:

[0029] 1. discharge arm; 11. first discharge arm; 111. first groove; 12. second discharge arm; 121. second groove; 13. sleeve;

[0030] 2. Clamping structure; 21. Bracket; 22. Clamping member; 221. Driving slider; 2211. Driving inclined plane; 222. Connecting rod; 223. Clamping block; 2231. Clamping groove; 224. First elastic member;

[0031] 3. Insulating rod; 31. Driving block; 32. Straight rod; 321. Holding rod; 322. Telescopic rod; 33. Rotating rod; 34. Connecting ball; 35. First locking bolt; 36. Second locking bolt; 37. Grip ring; 38. Anti-slip pattern;

[0032] 4. grounding assembly; 41. grounding wire; 42. first wiring lug; 43. second wiring lug;

[0033] 5. A second elastic member. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] Embodiment 1

[0040] This embodiment provides a capacitor discharge device for discharging a capacitor, wherein the capacitor includes two terminals spaced apart from each other. Figure 1 to Figure 3As shown, the discharge device includes a discharge arm 1, a clamping structure 2, an insulating rod 3 and a grounding component 4, wherein the discharge arm 1 is configured to abut two terminals; the clamping structure 2 includes a bracket 21 and two clamping members 22, wherein the bracket 21 is fixedly arranged on the discharge arm 1, and the two clamping members 22 are respectively slidably arranged on opposite sides of the bracket 21; the insulating rod 3 is passed through the discharge arm 1, and the insulating rod 3 and the discharge arm 1 are slidably matched, and the insulating rod 3 is provided with a driving block 31, and when the driving block 31 moves in a direction away from the discharge arm 1, the distance between the two clamping members 22 gradually increases, and each clamping member 22 is configured to clamp a terminal; the grounding component 4 includes a grounding wire 41, one end of the grounding wire 41 is connected to the discharge arm 1, and the other end of the grounding wire 41 is used for grounding.

[0041] In the discharge device, the operator holds the insulating rod 3 and moves the clamping structure 2 between the two terminals of the capacitor to be discharged. When the discharge arm 1 abuts the two terminals at the same time, the operator continues to move the insulating rod 3. At this time, the insulating rod 3 and the bracket 21 slide relative to each other, and the driving block 31 of the insulating rod 3 drives the two clamping parts 22 to move away from each other. When the two clamping parts 22 abut against the corresponding terminals, the reliability of the contact between the terminals and the discharge arm 1 can be guaranteed, so that the capacitor can be discharged through the discharge arm 1 and the grounding wire 41, ensuring the personal safety of the maintenance personnel and achieving the effect of saving time and effort.

[0042] In this embodiment, the discharge arm 1 includes a first discharge arm 11, a second discharge arm 12 and a sleeve 13 connecting the first discharge arm 11 and the second discharge arm 12, the insulating rod 3 is inserted into the sleeve 13, and the first discharge arm 11 and the second discharge arm 12 are symmetrically arranged about the sleeve 13. During discharge, the first discharge arm 11 abuts against one terminal of the capacitor, and the second discharge arm 12 abuts against the other terminal of the capacitor, so as to ensure the balance and stability of the discharge device and save the physical strength of the operator.

[0043] In this embodiment, the discharge arm 1 is provided with a plurality of grooves on both opposite sides of the clamping structure 2, and the terminal can be clamped into the grooves on the corresponding side. That is, the first discharge arm 11 is provided with a plurality of first grooves 111, and the second discharge arm 12 is provided with a plurality of second grooves 121. By clamping the first grooves 111, the second grooves 121 and the corresponding terminals, relative sliding between the discharge arm 1 and the terminal can be avoided, so that sparking during discharge can be avoided and stability during discharge can be improved.

[0044] like Figure 3As shown, in order to simplify the structure, a driving inclined surface 2211 is provided at one end of the clamping member 22 close to the insulating rod 3, and the driving block 31 slides against the driving inclined surface 2211. When the discharge arm 1 abuts against the terminal, the insulating rod 3 and the bracket 21 will move relative to each other. At this time, the sliding abutment between the driving block 31 and the driving inclined surface 2211 can drive the clamping member 22 to move in the horizontal direction, that is, to increase the distance between the two clamping members 22. This structure allows the operator to abut the discharge arm 1 against the terminal and the clamping member 22 against the terminal in the same direction, which simplifies the operation and achieves the effect of saving time and effort.

[0045] In order to ensure that the clamping part 22 moves along the radial direction of the insulating rod 3 when the insulating rod 3 moves, the clamping part 22 includes a driving slider 221, a connecting rod 222 and a clamping block 223 connected in sequence, the driving inclined surface 2211 is arranged on the driving slider 221, and the connecting rod 222 is passed through the bracket 21 and slidably cooperates with the bracket 21.

[0046] The driving slider 221 is used to abut against the driving block 31 of the insulating rod 3, and the connecting rod 222 can ensure that the driving slider 221 can only move along the radial direction of the insulating rod 3 through sliding cooperation with the bracket 21, and the clamping block 223 is used to abut and fix with the terminal.

[0047] Furthermore, the clamping block 223 is provided with a clamping groove 2231. When the insulating rod 3 drives the clamping hole to abut against the terminal, the terminal enters the clamping groove 2231 and is clamped with the terminal. The provision of the clamping groove 2231 can keep the discharge device and the capacitor relatively stable in the axial direction of the insulating rod 3, further improving the reliability of the connection between the discharge device and the capacitor.

[0048] like Figure 3 As shown, the clamping structure 2 further includes a first elastic member 224, and each clamping member 22 corresponds to a first elastic member 224, so that the distance between the two clamping members 22 is reduced. The first elastic member 224 is used to reset the clamping member 22. When the operator reduces the abutment force between the discharge arm 1 and the terminal, the driving force of the driving block 31 on the driving inclined surface 2211 is reduced, and the clamping member 22 moves inward under the drive of the first elastic member 224, so that the distance between the two clamping members 22 is reduced, and the operator can remove the discharge device at this time.

[0049] In this embodiment, the discharge device further includes a second elastic member 5, the two ends of which abut against the bracket 21 and the insulating rod 3, respectively, so that the driving block 31 approaches and abuts against the discharge arm 1. The second elastic member 5 can reset the insulating rod 3. In this state, the two clamping members 22 are also in the initial position, which facilitates the discharge device to directly discharge multiple times without the need for frequent operations by the operator. It is worth noting that the insulating rod 3 and the discharge arm 1 are limited by the driving block 31 to prevent the second elastic member 5 from causing the insulating rod 3 and the discharge arm 1 to disengage.

[0050] It is worth noting that the extension direction of the terminal of the capacitor to be discharged is not necessarily horizontal, but may be inclined or vertical. Figure 1 and Figure 2 As shown, in order to make the discharge device suitable for the discharge operation of all capacitors, the insulating rod 3 includes a straight rod 32, a rotating rod 33 and a connecting ball 34. The connecting ball 34 and the rotating rod 33 are fixedly connected. A ball groove is opened on the top of the straight rod 32, and the connecting ball 34 is rotatably set in the ball groove.

[0051] By rotating the connecting ball 34, the angle between the rotating rod 33 and the straight rod 32 can be adjusted according to the extension direction of the capacitor terminal, which is convenient for the operator to move the clamping structure 2 between the two terminals along the direction perpendicular to the terminals, greatly improving the convenience of the operator in using the discharge device.

[0052] In this embodiment, the straight rod 32 includes a gripping rod 321 and a telescopic rod 322. The gripping rod 321 and the telescopic rod 322 are slidably matched, and the ball groove is provided at one end of the telescopic rod 322 away from the gripping rod 321. The operator can adjust the total length of the straight rod 32 by sliding the gripping rod 321 and the telescopic rod 322 relative to each other, so that the operator can discharge capacitors at different heights.

[0053] Furthermore, the inner diameter of the holding rod 321 is larger than the outer diameter of the telescopic rod 322 and the outer diameter of the rotating rod 33. This structure enables the telescopic rod 322 and the rotating rod 33 to enter the holding rod 321 when stored, thereby reducing the space occupied by the discharge device and facilitating storage.

[0054] In this embodiment, the side wall of the holding rod 321 is provided with a first threaded hole, and the relative position between the telescopic rod 322 and the holding rod 321 can be fixed by the first locking bolt 35 to prevent the telescopic rod 322 from sliding up and down during the discharge of the capacitor. Similarly, the side wall of the telescopic rod 322 is provided with a second threaded hole, and the second threaded hole is penetrated through the inner surface of the ball groove, and the relative position between the telescopic rod 322 and the rotating rod 33 can be fixed by the second locking bolt 36 to prevent the rotating rod 33 from rotating during the discharge of the capacitor.

[0055] The first locking bolt 35 and the second locking bolt 36 may be butterfly bolts, which facilitates the operator to lock or loosen the locking bolts and saves effort.

[0056] In order to prevent the operator's hands from sliding on the surface of the grip rod 321 and causing safety accidents, two grip rings 37 are arranged at intervals below the grip rod 321, and a plurality of longitudinally distributed anti-skid lines 38 are arranged on the handle portion corresponding to the grip rings 37 to increase the friction between the operator's palm and the grip rod 321, thereby enhancing the anti-skid effect. In order to increase the comfort of the palm, the material of the anti-skid lines 38 is soft insulating rubber.

[0057] In this embodiment, the grounding component 4 also includes a first wiring lug 42 and a second wiring lug 43. The first wiring lug 42 is used to crimp one end of the grounding wire 41 connected to the discharge arm 1, and the second wiring lug 43 is used to crimp one end of the grounding wire 41 connected to the ground. The first wiring lug 42 is set on the first discharge arm 11 or the second discharge arm 12 by screws, and the second wiring lug 43 is connected to the grounding wire 41 clamp on the ground to discharge the charge of the capacitor to the ground.

[0058] Embodiment 2

[0059] This embodiment provides a capacitor discharging method, which is performed by the above capacitor discharging device. The discharging method includes:

[0060] S1: grounding the ground wire 41;

[0061] S2: Move the clamping structure 2 between the two terminals of the capacitor, and make the discharge arm 1 abut against the two terminals at the same time;

[0062] S3: Continue to push the insulating rod 3 to gradually increase the distance between the two clamping members 22 until both clamping members 22 abut against the corresponding terminals.

[0063] When both clamping parts 22 are in contact with the corresponding terminals, the reliability of the contact between the terminals and the discharge arm 1 can be ensured, so that the capacitor can be discharged through the discharge arm 1 and the grounding wire 41, ensuring the personal safety of maintenance personnel and achieving the effect of saving time and effort.

[0064] In this embodiment, the discharging method further includes:

[0065] S4: Pull the insulating rod 3 back in the direction away from the capacitor, so that the discharge arm 1 and the clamping member 22 are disengaged from the terminal;

[0066] S5: Repeat steps S2 to S4.

[0067] By making the insulating rod 3 reciprocate with a small amplitude, the capacitor can be discharged multiple times quickly, thereby improving the discharge effect and discharge efficiency.

[0068] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A capacitor discharge device, used for discharging a capacitor, wherein the capacitor comprises two terminals spaced apart, characterized in that: The discharge device comprises: A discharge arm (1), the discharge arm (1) being configured to abut against the two terminals; A clamping structure (2), the clamping structure (2) comprising a bracket (21) and two clamping parts (22), the bracket (21) being fixedly arranged on the discharge arm (1), and the two clamping parts (22) being slidably arranged on opposite sides of the bracket (21); An insulating rod (3), the insulating rod (3) being inserted through the discharge arm (1), the insulating rod (3) being slidably matched with the discharge arm (1), the insulating rod (3) being provided with a driving block (31), and when the driving block (31) moves in a direction away from the discharge arm (1), the distance between the two clamping members (22) gradually increases, and each of the clamping members (22) is configured to clamp one of the terminals; A grounding assembly (4) comprises a grounding wire (41), one end of the grounding wire (41) is connected to the discharge arm (1), and the other end of the grounding wire (41) is used for grounding.

2. The capacitor discharge device according to claim 1, characterized in that: A driving inclined surface (2211) is provided at one end of the clamping member (22) close to the insulating rod (3), and the driving block (31) is in sliding contact with the driving inclined surface (2211).

3. The capacitor discharge device according to claim 2, characterized in that: The clamping member (22) comprises a driving slider (221), a connecting rod (222) and a clamping block (223) which are connected in sequence, the driving inclined surface (2211) is arranged on the driving slider (221), and the connecting rod (222) is passed through the bracket (21) and slidably cooperates with the bracket (21).

4. The capacitor discharge device according to claim 3, characterized in that: The clamping block (223) is provided with a clamping groove (2231), and the clamping groove (2231) can be clamped and matched with the terminal.

5. The capacitor discharge device according to claim 1, characterized in that: The clamping structure (2) further comprises a first elastic member (224), and each of the clamping members (22) corresponds to one of the first elastic members (224), so that the distance between the two clamping members (22) is reduced.

6. The capacitor discharge device according to claim 1, characterized in that: The discharge device further comprises a second elastic member (5), two ends of which respectively abut against the bracket (21) and the insulating rod (3), so that the driving block (31) is close to and abuts against the discharge arm (1).

7. The capacitor discharge device according to claim 1, characterized in that: The discharge arm (1) is provided with a plurality of grooves on opposite sides of the clamping structure (2), and the terminal can be clamped into the groove on the corresponding side.

8. The capacitor discharge device according to any one of claims 1 to 7, characterized in that: The insulating rod (3) comprises a straight rod (32), a rotating rod (33) and a connecting ball (34); the connecting ball (34) and the rotating rod (33) are fixedly connected; a ball groove is provided on the top of the straight rod (32); and the connecting ball (34) is rotatably arranged in the ball groove.

9. The capacitor discharge device according to claim 8, characterized in that: The straight rod (32) comprises a gripping rod (321) and a telescopic rod (322), the gripping rod (321) and the telescopic rod (322) are slidably matched, and the ball groove is provided at one end of the telescopic rod (322) away from the gripping rod (321).

10. A method for discharging a capacitor, characterized in that: The discharge method is performed by the discharge device of the capacitor according to any one of claims 1 to 9, and comprises: S1: grounding the ground wire (41); S2: moving the clamping structure (2) between two terminals of the capacitor, and making the discharge arm (1) abut against the two terminals simultaneously; S3: Continue to push the insulating rod (3) so that the distance between the two clamping members (22) gradually increases until the two clamping members (22) both abut against the corresponding terminals.

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