CN210489849U

CN210489849U - Power electronic equipment earthing device

Info

Publication number: CN210489849U
Application number: CN201921949572.9U
Authority: CN
Inventors: 董晓鹏
Original assignee: Suzhou Shenglan Precision Machinery Co Ltd
Current assignee: Suzhou Shenglan Precision Machinery Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-05-08
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a power electronic equipment earthing device relates to power electronic equipment grounding body technical field, adopts the shape structure of cylinder or block for the artifical grounding body that the direct current equipment among the solution prior art used mostly, and the electric current of two kinds of structures flows scattered area and has certain restrictive, and all artifical grounding body itself still receives the problem of geographical environment's influence simultaneously. The direct current grounding element main part includes cone ground connection subassembly, the surface of cone ground connection subassembly is provided with main part toper frame, be provided with conical surface guide plate around the main part toper frame, and conical surface guide plate has four, the inboard of conical surface guide plate is provided with the metal copper, the outside of metal copper is provided with the graphite cake, the outside of graphite cake is provided with the compound copper layer of stainless steel, and the graphite cake is connected with the compound copper layer combination of metal copper and stainless steel, the surface on the compound copper layer of stainless steel is provided with outer cotton core that inhales.

Description

Power electronic equipment earthing device

Technical Field

The utility model relates to a power electronic equipment grounding body technical field specifically is a power electronic equipment earthing device.

Background

The grounding body mainly comprises a natural grounding body and an artificial grounding body: the metal conductors which are used as the grounding conductors such as various metal members directly contacted with the ground, metal well pipes, foundations of reinforced concrete buildings, metal pipelines, equipment and the like are called as natural grounding bodies, the grounding bodies are used as conductors which are closely contacted with the soil of the ground and provide electrical connection with the ground, and the energy of the safe lightning current is discharged into the ground. In the grounding design, various metal structures, pipelines and equipment which are reliably connected with the ground are used as grounding bodies, and the grounding bodies are called natural grounding bodies. If the resistance of the natural grounding body can meet the requirement and does not generate potential safety hazard to the natural grounding body, the natural grounding body can be used as the grounding body when no mandatory standard exists. And the conductor used as the grounding device is buried underground, which is called an artificial grounding body. Generally, a metal object having a section conforming to the grounding requirement is buried under the ground at a suitable depth, and the metal object having a resistance conforming to the predetermined requirement is used as a grounding body. With specific reference to the ground specification, lightning grounding, equipment grounding, electrostatic grounding, and the like need to be distinguished. Grounding is the most important link of lightning protection engineering, and the lightning current is finally sent to the ground no matter the direct lightning protection is adopted or the protection technologies of electrostatic induction, electromagnetic induction and lightning wave invasion of lightning are adopted. Without good grounding techniques, it is not possible to have a qualified lightning protection process. The function of the protection grounding is to make good metal connection between the uncharged metal part of the electrical equipment and the grounding body, reduce the grounding voltage of the contact, and avoid the danger of electric shock of human body.

However, most of the artificial grounding bodies used by the existing direct current equipment adopt a column or block-shaped structure, the current dispersion areas of the two structures have certain limitation, and all the artificial grounding bodies are influenced by the geographical environment; therefore, the existing requirements are not met, and a grounding device for power electronic equipment is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power electronic equipment earthing device to solve the artifical earthing body that the direct current equipment that proposes in the above-mentioned background art used and adopt the shape structure of cylinder or block mostly, there is certain restrictive in the electric current area that looses of two kinds of structures, and all artifical earthing bodies themselves still receive the problem of geographical environment's influence simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a power electronic equipment grounding device comprises a direct current grounding element main body, wherein the direct current grounding element main body comprises a cone grounding assembly, a main body conical frame is arranged on the outer surface of the cone grounding assembly, conical surface guide plates are arranged on the periphery of the main body conical frame, the number of the conical surface guide plates is four, a metal copper plate is arranged on the inner side of each conical surface guide plate, a graphite plate is arranged on the outer side of each metal copper plate, a stainless steel copper clad layer is arranged on the outer side of each graphite plate and is connected with the metal copper plate and the stainless steel copper clad layer in a combined mode, an outer absorption cotton core is arranged on the outer surface of each stainless steel copper clad layer and is connected with the outer absorption cotton core through a clamping groove, a cone inner cavity is arranged inside the cone grounding assembly, a resistance reducing agent is arranged inside the cone inner cavity, and a copper connection cone is arranged inside the resistance, and the resistance reducing agent and the copper connection electric cone are connected with the cone inner cavity in a combined mode, a switching protection assembly is arranged above the copper connection electric cone and is connected with the copper connection electric cone in a combined mode.

Preferably, a plane top sealing cover is arranged above the cone grounding assembly and is in combined connection with the cone grounding assembly, a sealing interface is arranged above the plane top sealing cover and is fixedly connected with the plane top sealing cover, insulating handles are arranged on two sides of the sealing interface, and the insulating handles are connected with the plane top sealing cover through bolts.

Preferably, an insulating assembly joint is arranged above the sealing interface and is connected with the sealing interface through an internal thread, and a soft rubber sleeve is arranged above the insulating assembly joint and is fixedly connected with the insulating assembly joint.

Preferably, the inside of switching protection subassembly is provided with the wiring chamber, the top in wiring chamber is provided with sealed chamber, the bottom in wiring chamber is provided with wiring inductive terminal, wiring inductive terminal's top is provided with ground connection metal copper line, and wiring inductive terminal and ground connection metal copper line and copper connection electric connection.

Preferably, an inner container protection layer is arranged above the grounding metal copper wire, the inner container protection layer is connected with the switching protection assembly through a sealing cavity, and a grounding wire group is arranged above the inner container protection layer.

Preferably, the grounding metal copper wire and the grounding wire group are combined and connected with the liner protective layer, and the grounding wire group is combined and connected with the insulating assembly terminal and the soft rubber sleeve.

Preferably, the main body conical frame is connected with the conical guide plate through a clamping groove, and the conical guide plate is formed by combining a metal copper plate, a graphite plate, a stainless steel copper clad layer and an outer cotton absorption core.

Preferably, the main body conical frame and the copper connection conical frame are the same in structural shape, backfill materials are arranged above the direct current grounding element main body, and an external ground is arranged above the backfill materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the cone grounding component of the utility model mainly comprises a main body conical frame, and four groups of conical surface flow guide plates are arranged around the main body conical frame, so that the cone grounding component can have four current dispersion surfaces, and the current dispersion of a grounding circuit is completed from four different directions respectively, thereby improving the conductivity to the maximum extent;

2. the utility model discloses a conical surface guide plate is formed by metal copper, the graphite cake, stainless steel compound copper layer and outer cotton core combination of inhaling, the innermost metal copper, the cost is less than silver, but has high electric conductivity, can outwards derive the electric current that the earth connection produced, the graphite cake of the outside of metal copper is as the conducting medium in the middle of the plate, be favorable to the transmission of electric current, and the stainless steel compound copper layer of the outside of graphite cake is as outer protective housing, because it has extremely strong corrosion resistance itself, can place for a long time and use in underground soil, the whole life of hoisting device, reduce cost of maintenance, the surface of every stainless steel compound copper layer all is provided with outer cotton core of inhaling simultaneously, because earthing device need be in moist environment, resistance around otherwise will increase and lead to electric conductivity to descend, moisture in the soil can have a saturation and just can not absorb moisture when saturation back soil, the cotton core can absorb and store excessive moisture so as to avoid excessive loss of moisture, and when the moisture in the soil is reduced, the soil can absorb the moisture from the cotton core, so that the reverse feeding is realized, and the surrounding humid environment is guaranteed;

3. the utility model discloses an arrange the ground connection circuit among soft rubber sleeve, be connected sleeve pipe and earthing device through sealed port subassembly, through this a series of sealed measure, the sealing performance of guarantee junction avoids the air admission to cause the ageing of circuit thickly, and the sleeve pipe parcel is its protection to the ground connection in the outside of circuit simultaneously, makes the ground connection need not with soil direct contact to avoid the material in the soil to cause the corruption to the circuit.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the overall installation structure of the present invention;

FIG. 3 is a schematic view of the whole structure of the present invention;

FIG. 4 is a schematic view of the cone deflector of the present invention;

fig. 5 is an enlarged schematic structural diagram of a of the present invention.

In the figure: 1. a DC ground element main body; 2. a main body conical frame; 3. a conical deflector; 4. a planar top seal cover; 5. an insulated handle; 6. sealing the interface; 7. insulating and connecting the end heads; 8. a soft rubber sleeve; 9. an outside ground; 10. backfilling soil; 11. a ground line group; 12. a resistance reducing agent; 13. a cone grounding assembly; 14. copper is used for manufacturing the electric cone; 15. switching the protection component; 16. a cone cavity; 17. a copper metal plate; 18. a graphite plate; 19. a stainless steel copper clad layer; 20. an outer absorbent cotton core; 21. an inner container protective layer; 22. sealing the cavity; 23. a wiring cavity; 24. a grounded metal copper wire; 25. and a wire connection induction terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides an embodiment: a power electronic equipment grounding device comprises a direct current grounding element main body 1, wherein the direct current grounding element main body 1 comprises a cone grounding assembly 13, a main body conical frame 2 is arranged on the outer surface of the cone grounding assembly 13, conical surface guide plates 3 are arranged on the periphery of the main body conical frame 2, the number of the conical surface guide plates 3 is four, four current guiding and dispersing surfaces are provided, the current guiding and dispersing of a grounding circuit are respectively completed from four different directions, the conductivity is improved to the maximum extent, a metal copper plate 17 is arranged on the inner side of the conical surface guide plate 3, the manufacturing cost is lower than that of silver, but the metal copper plate has high conductivity, the current generated by a grounding wire can be led out, a graphite plate 18 is arranged on the outer side of the metal copper plate 17 and is used as a conducting medium in the middle of a plate block, the transmission of the current is facilitated, a stainless steel, the device can be placed in underground soil for a long time for use, the service life of the whole device is prolonged, the maintenance cost is reduced, the graphite plate 18 is connected with the metal copper plate 17 and the stainless steel copper clad layer 19 in a combined mode, the outer surface of the stainless steel copper clad layer 19 is provided with the outer cotton suction core 20, the cotton suction core can absorb moisture in the soil, as the grounding device needs to be in a humid environment, the surrounding resistance is increased to reduce the conductivity, the moisture in the soil has a saturation degree, the soil cannot absorb the moisture after saturation, the excessive moisture can be absorbed and stored through the cotton suction core at the moment, excessive moisture loss is avoided, when the moisture in the soil is reduced, the soil can absorb the moisture from the cotton suction core, regurgitation is realized, the surrounding humid environment is guaranteed, the stainless steel copper clad layer 19 is connected with the outer cotton suction core 20 through a clamping groove, the cone grounding component 13 is internally provided with a cone inner cavity 16, the resistance reducing agent 12 is arranged inside the cone inner cavity 16, the copper connection cone 14 is arranged inside the resistance reducing agent 12 and is connected with a grounding wire, current in the grounding wire is led out through the copper connection cone 14 and is diffused, the resistance reducing agent 12 and the copper connection cone 14 are connected with the cone inner cavity 16 in a combined mode, the switching protection assembly 15 is arranged above the copper connection cone 14, and the switching protection assembly 15 is connected with the copper connection cone 14 in a combined mode.

Further, cone ground connection subassembly 13's top is provided with plane top closing cap 4, adopt insulating material to make, after the filler of completion cone, seal up whole cone through the closing cap, be provided with the connection of circuit simultaneously in the top of closing cap and put the device, and plane top closing cap 4 and cone ground connection subassembly 13 built-up connection, plane top closing cap 4's top is provided with sealing interface 6, a protection hose for connecting the earth connection that is equipped with, and sealing interface 6 and plane top closing cap 4 fixed connection, sealing interface 6's both sides all are provided with insulating handle 5, and insulating handle 5 passes through bolted connection with plane top closing cap 4, be convenient for carry out the arrangement installation of cone.

Further, the top of sealing interface 6 is provided with insulating montage end 7, and insulating montage end 7 passes through female connection with sealing interface 6, be convenient for install, guarantee the sealing performance of junction simultaneously, avoid underground air to get into to cause the circuit ageing, the top of insulating montage end 7 is provided with soft rubber sleeve 8, and soft rubber sleeve 8 and insulating montage end 7 fixed connection, arrange the earth connection of device in the sleeve pipe, protect it through the sleeve pipe, make the earth connection need not with soil direct contact.

Further, the inside of switching protection subassembly 15 is provided with wiring chamber 23, the top in wiring chamber 23 is provided with sealed chamber 22, the inside in sealed chamber 22 is provided with rubber seal, not only can press from both sides tightly fixedly to entering into the circuit, also avoid the entering of air simultaneously, the bottom in wiring chamber 23 is provided with wiring inductive terminal 25, the top of wiring inductive terminal 25 is provided with ground connection metal copper line 24, and wiring inductive terminal 25 and ground connection metal copper line 24 and copper connect electric cone 14 electric connection, strip out at the inside ground connection metal copper line 24 of earth connection, contact it with wiring inductive terminal 25 afterwards, be convenient for realize leading of electric current and scatter.

Further, an inner container protection layer 21 is arranged above the grounding metal copper wire 24 to wrap and protect the copper wire inside, the inner container protection layer 21 is connected with the switching protection assembly 15 through a sealing cavity 22, and the grounding wire group 11 is arranged above the inner container protection layer 21.

Furthermore, the grounding metal copper wire 24 and the grounding wire group 11 are combined and connected with the liner protective layer 21, so that the safety of the circuit is improved, and the grounding wire group 11 is combined and connected with the insulating assembly connection end 7 and the soft rubber sleeve 8, so that the stability is enhanced.

Furthermore, the main body conical frame 2 is connected with the conical guide plate 3 through a clamping groove, so that the assembly and installation of the conical guide plate are convenient, the conical guide plate 3 is formed by combining a metal copper plate 17, a graphite plate 18, a stainless steel copper clad layer 19 and an outer cotton suction core 20, and the backflow dispersion performance of the device is improved.

Further, the main body conical frame 2 has the same structural shape as the copper connection cone 14, a backfill material 10 is provided above the direct current grounding element main body 1, and an external ground 9 is provided above the backfill material 10.

The working principle is as follows: when the device is used, a grounding wire on the device is sleeved into the soft rubber sleeve 8 and penetrates out of the insulating assembly connecting terminal 7 at the other end, after a circuit penetrates out, a protective layer on the surface of the grounding wire is stripped to expose an internal grounding metal copper wire 24, the copper wire is plugged into the wiring cavity 23 in the switching protection assembly 15 from the sealing interface 6, after the copper wire enters the wiring cavity 23, the outer liner protective layer 21 is clamped in the sealing cavity 22 above the wiring cavity 23, the entered circuit is clamped and fixed through the rubber sealing ring on the inner side of the wiring cavity 23, the copper wire is contacted with the wiring induction terminal 25 at the bottom of the wiring cavity 23, the grounding copper wire is connected with the copper electric connection cone 14 through the wiring induction terminal 25, when the device is put into operation, the current in the grounding wire is led out and diffused through the copper electric connection cone 14, and the diffused current is received by the flow guide plates 3 on four sides, the current is conducted and scattered to the soil outwards, so that the grounding and scattering function is completed, after the circuit connection is completed, the insulating assembly connecting end 7 sleeved with the grounding wire is installed inside the sealing interface 6 to be fixed, then a pit with a specified depth is dug on the ground, the conical surface guide plate 3 is placed into the pit and then filled with the soil, the soft rubber sleeve 8 needs to be kept vertically upwards in the filling process, after the filling is completed, the soft rubber sleeve 8 needs to be higher than one section of the ground to prevent the rainwater from permeating, finally, the sealing measure of the hose is taken to ensure the sealing performance of the connection position, the line aging caused by the air entering is avoided, the sleeve is used for protecting the grounding wire, the grounding wire does not need to be in direct contact with the soil, and the corrosion of the line caused by substances in the soil is avoided.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A power electronic equipment grounding device comprises a direct current grounding element main body (1), and is characterized in that: the direct current grounding element main body (1) comprises a cone grounding assembly (13), a main body conical frame (2) is arranged on the outer surface of the cone grounding assembly (13), conical guide plates (3) are arranged on the periphery of the main body conical frame (2), the number of the conical guide plates (3) is four, a metal copper plate (17) is arranged on the inner side of each conical guide plate (3), a graphite plate (18) is arranged on the outer side of each metal copper plate (17), a stainless steel copper clad layer (19) is arranged on the outer side of each graphite plate (18), each graphite plate (18) is connected with the metal copper plate (17) and the stainless steel copper clad layer (19) in a combined mode, an outer suction cotton core (20) is arranged on the outer surface of each stainless steel copper clad layer (19), each stainless steel copper clad layer (19) is connected with the outer suction cotton core (20) through a clamping groove, and a cone inner cavity (16) is arranged inside, the improved transformer is characterized in that a resistance reducing agent (12) is arranged inside the cone inner cavity (16), a copper connection electric cone (14) is arranged inside the resistance reducing agent (12), the resistance reducing agent (12) and the copper connection electric cone (14) are connected with the cone inner cavity (16) in a combined mode, a switching protection assembly (15) is arranged above the copper connection electric cone (14), and the switching protection assembly (15) is connected with the copper connection electric cone (14) in a combined mode.

2. A power electronic device grounding arrangement as claimed in claim 1, wherein: the cone grounding assembly is characterized in that a plane top sealing cover (4) is arranged above the cone grounding assembly (13), the plane top sealing cover (4) is connected with the cone grounding assembly (13) in a combined mode, a sealing interface (6) is arranged above the plane top sealing cover (4), the sealing interface (6) is fixedly connected with the plane top sealing cover (4), insulating handles (5) are arranged on two sides of the sealing interface (6), and the insulating handles (5) are connected with the plane top sealing cover (4) through bolts.

3. A power electronic device grounding arrangement as claimed in claim 2, wherein: an insulation assembly terminal (7) is arranged above the sealing interface (6), the insulation assembly terminal (7) is connected with the sealing interface (6) through internal threads, a soft rubber sleeve (8) is arranged above the insulation assembly terminal (7), and the soft rubber sleeve (8) is fixedly connected with the insulation assembly terminal (7).

4. A power electronic device grounding arrangement as claimed in claim 1, wherein: the inside of switching protection subassembly (15) is provided with wiring chamber (23), the top in wiring chamber (23) is provided with sealed chamber (22), the bottom in wiring chamber (23) is provided with wiring induction terminal (25), the top of wiring induction terminal (25) is provided with ground connection metal copper line (24), and wiring induction terminal (25) and ground connection metal copper line (24) and copper connection electricity awl (14) electric connection.

5. A power electronic device grounding arrangement according to claim 4, characterized in that: the grounding metal copper wire (24) is provided with a liner protection layer (21) above, the liner protection layer (21) is connected with the switching protection assembly (15) through a sealing cavity (22), and a grounding wire group (11) is arranged above the liner protection layer (21).

6. A power electronic device grounding arrangement according to claim 5, characterized in that: the grounding metal copper wire (24) and the grounding wire group (11) are combined and connected with the liner protective layer (21), and the grounding wire group (11) is combined and connected with the insulating assembly joint (7) and the soft rubber sleeve (8).

7. A power electronic device grounding arrangement as claimed in claim 1, wherein: the main body conical frame (2) is connected with the conical guide plate (3) through a clamping groove, and the conical guide plate (3) is formed by combining a metal copper plate (17), a graphite plate (18), a stainless steel copper clad layer (19) and an outer cotton suction core (20).

8. A power electronic device grounding arrangement as claimed in claim 1, wherein: the main body conical frame (2) and the copper connection electric cone (14) are the same in structural shape, backfill soil (10) is arranged above the direct current grounding element main body (1), and an external ground (9) is arranged above the backfill soil (10).