CN211150817U - Insulation discharge rod for capacitor - Google Patents

Abstract

The utility model discloses an insulating discharging rod for condenser makes the maintainer discharge to the condenser under the condition that does not demolish insulating sheath. The insulated discharge rod comprises at least one discharge part; the discharging part comprises two discharging contacts, two discharging terminals, a conductive steel plate and a lead, and the discharging terminals are arranged at one ends of the discharging contacts far away from the conductive steel plate; the length of the discharge contact is greater than the depth of the insulating sheath of the capacitor, and the wire is connected to ground for discharging the charge. When the capacitor needs to discharge, the discharge contact extends into the insulating sheath of the capacitor, the width requirement of the discharge contact ensures that the discharge contact can extend into the insulating sheath, and the length ensures that the discharge terminal can be contacted with the electric terminal of the capacitor, so that the electric conduction is realized. Meanwhile, the discharge terminal leads charges to the conductive steel plate, the conductive steel plate is connected with the lead, the lead is connected with the ground, the charges in the capacitor are released to the ground, and the function of discharging the capacitor without dismounting an insulating sheath of the capacitor is achieved.

Description

Insulation discharge rod for capacitor

Technical Field

The utility model relates to an electrician's auxiliary assembly field especially relates to an insulating discharging rod for condenser.

Background

Capacitors play an important role in substations, mainly for storing electrical energy and improving substation power factor. When the transformer substation needs to be overhauled, in order to ensure the safety of maintainers, the transformer substation is powered off to prevent the maintainers from electric shock; because a large amount of charges are stored in the capacitor, which causes a great safety hazard, the charges in the capacitor are generally discharged completely by using a discharging rod.

Generally, a maintainer is required to ground the discharging rod, and then the discharging rod is simultaneously contacted with two polarity terminals of the capacitor, so that the discharging purpose is realized. However, in the conventional capacitor, an insulating sheath is mounted on each of two terminals, and it is difficult for a general discharging rod to directly contact an electrical polarity terminal, so that an inspector wears an insulating glove to remove the insulating sheath. The process has great potential safety hazard, and the maintainers are easy to get an electric shock.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an insulating discharging rod for condenser solves present condenser and need demolish insulating sheath the problem that just can discharge.

To achieve the purpose, the utility model adopts the following technical proposal:

an insulated discharge rod for a capacitor, comprising at least one discharge portion;

the discharge part comprises two discharge contacts, two discharge terminals, a conductive steel plate and a lead, and the discharge terminals are arranged at one ends of the discharge contacts far away from the conductive steel plate;

the length of the discharge contact is greater than the depth of an insulating sheath of the capacitor, when the discharge contact extends into the insulating sheath, the discharge terminal is in contact with a polar terminal of the capacitor to discharge charges to a conductive steel plate, and the conductive steel plate is connected with the lead;

the wire is connected to ground for discharging the charge.

Optionally, the insulating discharge rod further comprises a prompting part for prompting the completion of discharge and a connecting rod;

the prompting part comprises an electromagnet, a spring, a prompting post and a mounting plate; the electromagnet is arranged on one side of the conductive steel plate and is magnetically connected with the prompt column during discharging;

the mounting plate and the conductive steel plate are oppositely arranged, the mounting plate is provided with a hole, and the prompting column movably penetrates through the hole; the spring is disposed between one end of the indicator post and one side of the mounting plate.

Optionally, one terminal of the electromagnet is connected with one of the discharge terminals, the other terminal of the electromagnet is connected with the conductive steel plate, the conductive steel plate is connected with the other discharge terminal, and the lead is arranged on the conductive steel plate.

Optionally, the insulated discharge rod further comprises at least two sections of insulating rods, the insulating rods are fixedly connected with the connecting rod, and the insulating rods are connected through connection buckles.

Optionally, the tail end of the insulating rod is sleeved with a guard ring, and the guard ring is connected with an insulating sleeve for holding.

Optionally, the insulating sleeve is provided with a texture convenient to hold.

Optionally, the top cover of insulator spindle is equipped with and is used for fixing the solid fixed ring of connecting rod, the wire passes through second fastener fixed connection in gu fixed ring is last.

Optionally, the insulating rod is an epoxy rod.

Optionally, the discharge terminal is tapered.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides an insulating discharge rod, which comprises a discharge part, wherein the discharge part comprises at least one discharge part; the discharging part comprises two discharging contacts, two discharging terminals, a conductive steel plate and a lead, and the discharging terminals are arranged at one ends of the discharging contacts far away from the conductive steel plate; the length of the discharge contact is greater than the depth of an insulating sheath of the capacitor, when the discharge contact extends into the insulating sheath, the discharge terminal is contacted with a polar terminal of the capacitor to release charges to a conductive steel plate, and the conductive steel plate is connected with a lead; the wire is connected to ground. When the capacitor needs to discharge, the discharge contact extends into the insulating sheath of the capacitor, the width requirement of the discharge contact ensures that the discharge contact can extend into the insulating sheath, and the length ensures that the discharge terminal can be contacted with the electric terminal of the capacitor, so that the electric conduction is realized. Meanwhile, the discharge terminal leads charges to the conductive steel plate, the conductive steel plate is connected with the lead, the lead is connected with the ground, the charges in the capacitor are released to the ground, and the function of discharging the capacitor without dismounting an insulating sheath of the capacitor is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is a schematic view of an overall structure provided by an embodiment of the present invention;

fig. 2 is a schematic partial enlarged view provided in the embodiment of the present invention;

fig. 3 is a schematic view of a terminal structure provided in an embodiment of the present invention.

Illustration of the drawings: 1. a discharge section; 11. a discharge contact; 12. a discharge terminal; 13. a conductive steel plate; 14. a first fastener; 15. a second fastener; 16. a wire; 2. a presentation unit; 21. an electromagnet; 22. a spring; 23. a cue post; 24. mounting a plate; 3. a connecting rod; 4. a fixing ring; 5. a connection buckle; 6. an insulating rod; 7. protecting the ring; 8. and an insulating sleeve.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Please refer to fig. 1 to 3, fig. 1 is a schematic diagram of an overall structure provided by an embodiment of the present invention, fig. 2 is a schematic diagram of a local enlargement provided by an embodiment of the present invention, and fig. 3 is a schematic diagram of a terminal structure provided by an embodiment of the present invention.

The embodiment of the utility model provides an insulating discharging rod is applied to the scene that the condenser discharged, specifically, the cover has insulating sheath on the discharging terminal of condenser for two polarity terminals that are too close to that prevent the condenser pass through the air short circuit, thereby take place the incident. Therefore, when the capacitor is discharged, a maintenance worker is often required to remove the insulating sheath and then attach the discharge rod to the polar terminal of the capacitor to realize discharge.

In one embodiment of the insulated discharge rod, which is particularly applied to a capacitor, as shown in fig. 2, the insulated discharge rod includes a discharge portion 1, and the discharge portion 1 includes two discharge contacts 11, two discharge terminals 12, and a conductive wire 16. The maximum width of the discharge contact 11 is smaller than the minimum tangent circle of the insulating sheath, so that the discharge contact 11 can extend into the insulating sheath and is not clamped outside by the insulating sheath. The length of the discharge contact 11 is larger than the depth of the insulating sheath, so that the discharge contact 11 can not contact the polar terminal of the capacitor due to insufficient length. The discharge terminal 12 is arranged at the tail end of the discharge contact 11, in particular at one end of the discharge contact 11 far away from the conductive steel plate 13; the discharge contact 11 is inserted into the insulating sheath to electrically contact the discharge terminal 12 and the polar terminal of the capacitor, so that the charge is guided to the conductive steel plate 13. When needing to discharge, two discharge terminals 12 that this insulating discharging rod set up are connected two polarity terminals of condenser respectively, short circuit the polarity terminal of condenser, form a closed circuit, and the closed circuit that this kind of mode formed has the mode of not shorting out to discharge sooner, more stable effect. Meanwhile, the lead 16 is connected to the conductive steel plate 13 through the first fastening member 14, the lead 16 is connected to the ground, and the insulated discharge rod can discharge the charge of the capacitor to the ground through the lead 16.

On the basis of the above embodiment, the insulated discharge rod is provided with two discharge parts 1, the tail end of each discharge contact 11 is provided with a discharge terminal 12, the dimensions of the discharge contacts 11 are limited to be the same as those of the above embodiment, so that the discharge contacts 11 can extend into the insulating sheath, and the discharge terminals 12 can be contacted with the polar terminals of the capacitor, thereby realizing the discharge function. The distribution of the four discharge contacts 11 is not limited to a specific size, but the distribution enables the insulated discharge rod to be simultaneously inserted into four insulated sheaths of a group of adjacent capacitors, so as to achieve the function of simultaneously discharging a plurality of capacitors. Of course, the insulated discharge rod may be provided with three or more discharge portions 1.

Further, the insulated discharging rod further comprises a prompting part 2 for prompting the completion of discharging. The prompting part 2 comprises an electromagnet 21, a spring 22, a prompting post 23 and a mounting plate 24. The electromagnet 21 is arranged on one side of the conductive steel plate 13 and is magnetically connected with the prompt column 23 during discharging; the mounting plate 24 and the conductive steel plate 13 are oppositely arranged, the mounting plate 24 is provided with a sliding groove, and the prompt post 23 is in sliding connection with the sliding groove; the spring 22 is disposed between one end of the cue post 23 and one side of the mounting plate 24.

Specifically, the housing of the electromagnet 21 is connected to one side of the conductive steel plate 13, and is disposed opposite to the discharge contact 12 located above, so that the current received by the discharge contact 12 passes through the discharge contact 12. When the discharge contact 12 extends into the insulating sheath of the capacitor, the discharge terminal 12 contacts with the polar terminal of the capacitor to form a discharge loop. At this time, current flows through the electromagnet 21, and as is known from lorentz's law, the electromagnet generates a unidirectional magnetic attraction force to move the indication post 23 toward the electromagnet 21, and the spring 22 stores a certain elastic potential energy by compression. It should be noted that the conductive steel plate 13 and the mounting plate 24 are disposed opposite to each other, so that the magnetic attraction force generated by the electromagnet 21 can be directed to the indication post 23, and the electromagnet 21 does not incline the conductive steel plate 13 or the mounting plate 24 during the attraction process. In order to prevent the prompting post 23 from shifting when being attracted by the electromagnet 21, the conductive steel plate 13 is provided with a sliding groove, and the sliding groove enables the prompting post 23 to move only along the magnetic force direction, thereby being beneficial to improving the stability of the structure. After the capacitor is discharged, the electromagnet 21 has no current passing through any more, and the magnetic attraction force disappears; the prompting column 23 is dumbbell-shaped, two ends of the prompting column cannot pass through the sliding groove, and only the middle part of the prompting column can slide in the sliding groove; the prompting post 23 is reset under the action of the spring 22, the spring 22 releases elastic potential energy to enable the prompting post 23 to move towards the original position, because the prompting post 23 cannot pass through the sliding groove, when the prompting post 23 contacts the mounting plate 24, the prompting post and the mounting plate collide with each other, the mounting plate 24 offsets kinetic energy through self deformation, and meanwhile collision sound is generated, so that the prompting post is a 'clicking' sound, prompts a maintainer to finish discharging, and has the advantages of accuracy, intuition and stability.

It should be added that the above effect can be achieved when the magnetic force generated by the electromagnet 21 on the indication post 23 is a magnetic repulsive force. Specifically, the magnetic repulsion force generated by the electromagnet 21 makes the indication post 23 slide along the direction away from the electromagnet 21, and the sliding groove also plays a role in limiting the electromagnet 21; when the indication post 23 is pushed away from the electromagnet 21 by the magnetic repulsion force, the spring 22 is stretched to store certain elastic potential energy, when the discharge is finished, the magnetic repulsion force disappears, so that the indication post 23 can reciprocate to the original position, because the spring 22 is installed between one end of the indication post 23 and one side of the mounting plate, the indication post 23 can not collide with the mounting plate, but the spring 22 can generate vibration with certain frequency when the extension resets, thereby making a sound, prompting the maintainer to finish the discharge, and the device also has the advantages of accuracy, intuition and stability. Therefore, the spring 22 may be disposed on the side of the mounting plate 24 facing the conductive steel plate 13, or may be disposed on the side opposite to the conductive steel plate 13, and the direction of the current of the closed loop is not limited. Of course, suggestion portion 2 can also indicate that the maintainer finishes discharging through other modes, for example, through connecting a voltmeter, detect voltage and judge whether to finish discharging, but need the maintainer to watch on the voltmeter, and is comparatively loaded down with trivial details.

On the basis of the above embodiment, one terminal of the electromagnet 21 is connected to one of the discharge terminals 12, the other terminal of the electromagnet 21 is connected to the conductive steel plate 13, the conductive steel plate 13 is connected to the other discharge terminal 12, and the lead 16 is disposed on the conductive steel plate 13. The conductive steel plate 13 is provided with a connection hole corresponding to one of the discharge terminals 12, and the discharge terminal 12 is connected to a terminal of the electromagnet 21 through the connection hole. When a discharge circuit is formed, the current discharged from the capacitor passes through the electromagnet 21 and the conductive steel plate 13 to form a discharge circuit, and the electric charge is discharged to the ground through the lead 16. Wherein, a discharge terminal 12 that electro-magnet 21 connects is for being located the discharge terminal 12 of discharge portion 1 top, and like this, suggestion portion 2 sets up at the top of insulating discharge rod, makes connecting rod 3 can connect the middle part of electrically conductive steel sheet 13 and the middle part of mounting panel 24 respectively, avoids taking place crooked condition because of moment, makes the structure more stable.

It should be noted that the electromagnet 21 may be connected to one discharge terminal 12, or may be connected to the discharge terminal 12 located below the discharge portion 1, and the tie bar 3 needs to be adjusted adaptively to a certain extent in order to avoid interference of the tie bar 3 with the presentation portion 2. For example, both ends of the tie bar 3 are connected to the mounting plate 24 and the bottom of the conductive steel plate 13, respectively, but there is a possibility that the bending is generated by the moment generated by the self weight of the mounting plate 24, so that it is necessary to reduce the height of the mounting plate 24, and it is also necessary to add some reinforcing ribs to the conductive steel plate 13 in order to prevent the deformation of the conductive steel plate 13.

Further, the two ends of the connecting rod 3 are respectively connected with the conductive steel plate 13 and the mounting plate 24, and the electromagnet 21 arranged on the conductive steel plate 13 needs to attract the indication column 23 on the mounting plate 24, so that the whole attracting or releasing process is stable by keeping a stable distance. Connecting rod 3 plays the effect that electrically conductive steel sheet 13 and 24 intervals of mounting panel are stable, therefore connecting rod 3 is connected respectively at the middle part of electrically conductive steel sheet 13 and mounting panel 24, reduces the influence of moment to the structure, avoids taking place electrically conductive steel sheet 13 or mounting panel 24 and takes place the skew.

Further, as shown in fig. 1, the insulated discharge rod comprises at least two sections of insulating rods 6, and the insulating rods 6 are connected through a connection buckle 5. The insulating rods 6 are mutually sleeved, the extending lengths of the insulating rods 6 are different through the connection buckles 5, and the function of adjusting the length of the insulating discharge rod is achieved, so that the insulating discharge rod is suitable for capacitors located at different heights.

On the basis of the above embodiment, the end of the insulating rod 6 is sleeved with the protective ring 7, and the protective ring 7 is connected with the insulating sleeve 8 for holding. Grommet 7 can play insulating effect on the one hand, prevents that electric charge from switching on through the air, causes the incident, and on the other hand can the maintainer of being convenient for grip, and the maintainer only need with the tiger's mouth side of wrist paste tight grommet 7 can. The insulating sleeve 8 connected with the protective ring 7 can further increase the insulating capability of the insulating discharge rod, and safety accidents are avoided.

Meanwhile, the insulating sleeve 8 is provided with lines, so that the insulating sleeve is convenient for maintenance personnel to hold, and accidents caused by sliding of the insulating discharge rod are avoided. The specific texture is not particularly limited, and may be stripe, dot, wave, etc.

Further, the top of the insulating rod 6 is sleeved with a fixing ring 4, and the conducting wire 16 is fixedly connected to the insulating rod 6 through a second fastener 15. Wherein the internal diameter of solid fixed ring 4 and the external diameter phase-match of insulator spindle 6, solid fixed ring 4's lateral wall is seted up a plane, and this plane is used for placing wire 6. Perpendicular to this plane, solid fixed ring 4 and insulator spindle 6 are provided with corresponding hole, and the bolt of second fastener 15 passes this hole, is equipped with corresponding ring on the wire 6, and the ring registrates on the bolt, and the nut of second fastener 15 compresses tightly the ring on the plane after that, realizes the fixed to wire 6, prevents that insulating discharging rod from taking place the swing when wire 6 discharges, causes the incident.

Further, the insulating rod 6 is an epoxy resin rod, and the epoxy resin is a thermosetting material, so that the insulating rod has good shaping and certain insulating capability. Of course, the insulating rod 6 can also be made of bakelite, silica gel, rubber and other materials.

Further, as shown in fig. 3, the discharge terminal 12 is tapered. When the capacitor needs to be discharged, the discharge contact 11 extends into the insulating sheath of the capacitor, and because the discharge contact 11 and the polar terminal of the capacitor can both extend into the insulating sheath, the discharge terminal 12 at the tail end of the discharge contact 11 is prone to be in poor contact with the polar terminal, so that discharge failure is caused, and potential safety hazards are caused. The taper shape has a larger area than the flat surface, and thus the contact with the polar terminal is easier, and the contact failure between the discharge terminal 12 and the polar terminal is reduced.

To sum up, the embodiment of the utility model provides an insulating discharge rod makes insulating discharge rod discharge to the condenser under the condition that does not demolish insulating sheath through the setting of discharge contact, gets rid of the maintainer and demolishs this step with insulating sheath, alleviates maintainer's maintenance pressure, avoids the emergence of incident. Through the setting of suggestion portion, make the maintainer can judge directly perceivedly whether discharge finishes, improved maintainer's maintenance efficiency.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. An insulated discharge rod for a capacitor, characterized in that the insulated discharge rod comprises at least one discharge portion (1);

the discharge part (1) comprises two discharge contacts (11), two discharge terminals (12), a conductive steel plate (13) and a lead (16), wherein the discharge terminals (12) are arranged at one ends of the discharge contacts (11) far away from the conductive steel plate (13);

the length of the discharge contact (11) is larger than the depth of an insulating sheath of the capacitor, when the discharge contact (11) extends into the insulating sheath, the discharge terminal (12) is in contact with a polar terminal of the capacitor to discharge electric charges to a conductive steel plate (13), and the conductive steel plate (13) is connected with the lead (16);

the conductor (16) is connected to ground for discharging the charge.

2. The insulated discharge rod according to claim 1, further comprising a prompting part (2) for prompting completion of discharge and a connecting rod (3);

the prompting part (2) comprises an electromagnet (21), a spring (22), a prompting column (23) and a mounting plate (24); the electromagnet (21) is arranged on one side of the conductive steel plate (13) and is magnetically connected with the prompt column (23) during discharging;

the mounting plate (24) and the conductive steel plate (13) are arranged oppositely, the mounting plate (24) is provided with a hole, and the prompt column (23) is movably arranged in the hole in a penetrating manner; the spring (22) is disposed between one end of the indication post (23) and one side of the mounting plate (24).

3. The insulated discharge rod according to claim 2, wherein one terminal of the electromagnet (21) is connected to one of the discharge terminals (12), the other terminal of the electromagnet (21) is connected to the conductive steel plate (13), the conductive steel plate (13) is connected to the other discharge terminal (12), and the lead wire (16) is disposed on the conductive steel plate (13).

4. The insulated discharge rod according to claim 2, further comprising at least two segments of insulating rods (6), wherein the insulating rods (6) are fixedly connected with the connecting rods (3), and the insulating rods (6) are connected with each other through connection buckles (5).

5. The insulated discharge rod according to claim 4, wherein the end of the insulating rod (6) is sleeved with a protective ring (7), and the protective ring (7) is connected with an insulating sleeve (8) for holding.

6. The insulated discharge rod according to claim 5, wherein the insulating sheath (8) is provided with a texture for easy handling.

7. The insulated discharge rod according to claim 4, wherein a fixing ring (4) for fixing the connecting rod (3) is sleeved on the top of the insulating rod (6), and the conducting wire (16) is fixedly connected to the fixing ring (4) through a second fastener (15).

8. The insulated discharge rod according to claim 5, wherein the insulated rod (6) is an epoxy rod.

9. The insulated discharge rod according to claim 1, wherein the discharge terminals (12) are tapered.

Images