CN216597290U

CN216597290U - Intelligent capacitor for grounding of internal electrical element

Info

Publication number: CN216597290U
Application number: CN202123238920.1U
Authority: CN
Inventors: 郑强; 施倩倩; 郑克; 黄�俊; 郑东; 郑静
Original assignee: Zhejiang Jiushe Electrical Co ltd
Current assignee: Zhejiang Jiushe Electrical Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-24
Anticipated expiration: 2031-12-21

Abstract

The application relates to an intelligent capacitor for grounding of internal electrical elements, which comprises a shell and a shell cover arranged on the shell, and further comprises a grounding piece, wherein a connecting groove is formed in the shell cover, and the grounding piece penetrates through the connecting groove and the end part of the connecting groove to be fixed on the shell cover in a press riveting mode. Compared with tin soldering, the scheme can more intuitively confirm whether the grounding piece is in direct contact with the shell cover or not, and further judge whether the grounding piece is conducted with the shell cover or not, so that the press riveting has better connection reliability. So that when the internal electrical elements of the housing generate current, the current can be conducted underground for the purpose of ground protection.

Description

Intelligent capacitor for grounding of internal electrical element

Technical Field

The present application relates to the field of ground protection, and more particularly, to an intelligent capacitor for grounding internal electrical components.

Background

The electric control cabinet is formed by assembling switch equipment, measuring instruments, protective electric appliances and capacitors in a closed or semi-closed metal cabinet according to the electrical wiring requirements. The condenser may have electric leakage phenomenon and then harm equipment or personnel safety when using, consequently need install earthing device on automatically controlled cabinet, and with the casing of condenser direct with the cabinet body fixed connection of automatically controlled cabinet, then with the electric current leading-in underground.

The conventional oil-immersed capacitor usually adopts a grounding column and fixes the grounding column on a shell cover of the capacitor in a soldering mode, so that internal electrical elements of the capacitor are connected with the grounding column and connected with the grounding column through a grounding wire, and current is led into the ground. Due to the adoption of a soldering mode, a false soldering condition possibly exists, so that the grounding column is not conducted with the shell of the capacitor, the connection reliability of the grounding column is poor, the grounding column is easy to loosen, and the grounding protection of the capacitor is influenced.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the connection reliability of the grounding post, the intelligent capacitor for grounding the internal electric element is provided by the application.

The application provides a supply intelligent capacitor of inside electrical component ground connection adopts following technical scheme:

the utility model provides a supply intelligent condenser of inside electrical component ground connection, includes casing and the cap of setting on the casing, its characterized in that: still include the ground connection piece, the shell is covered and is provided with the spread groove, the ground connection piece passes spread groove and its tip is pressed and is riveted and fix on the shell is covered.

Through adopting above-mentioned technical scheme, stretch out after passing the spread groove with the ground connection piece, utilize squeeze riveter to fix its tip that stretches out the spread groove on the shell lid with pressure riveting, be connected and switch on the inside electric element of casing through welding or the mode that bonds with the ground connection piece again, and then be connected earth conductor and ground connection piece to switch on between realization casing and the ground. Compared with tin soldering, the scheme can more intuitively confirm whether the grounding piece is in direct contact with the shell cover or not, and further judge whether the grounding piece is conducted with the shell cover or not, so that the press riveting has better connection reliability. So that when the internal electrical elements of the housing generate current, the current can be conducted underground for the purpose of ground protection.

Preferably, the ground connection piece includes ground connection post and connecting rod, connecting rod coaxial coupling is in the one end of ground connection post, the one end of connecting rod is used for passing and stretches out behind the spread groove, the tip that the connecting rod stretches out the spread groove is pressed and is riveted the formation stationary blade in order to fix on the shell lid, just the ground connection post is used for laminating the shell lid towards the tip of connecting rod.

Through adopting above-mentioned technical scheme, the one end of connecting rod is passed and is stretched out behind the spread groove, utilizes squeeze riveter to fix its tip pressure riveting that stretches out the spread groove on the shell lid, and then is connected earth conductor and ground connection post, and the inside electric elements and the stationary blade of casing are connected, perhaps are connected earth conductor and stationary blade, and the inside electric elements and the ground connection post of casing are connected to the realization is with the purpose of the leading-in earth of the electric current of condenser.

Preferably, the ground post is located on a side of the housing cover facing away from the housing.

Through adopting above-mentioned technical scheme, the ground post compares in the stationary blade provides bigger area of contact for earth conductor's connection, the earth conductor's of being convenient for connection.

Preferably, the grounding column is provided with a grounding hole, and the grounding hole is used for embedding a grounding wire.

By adopting the technical scheme, the grounding wire can be embedded into the grounding hole and then fixed so as to conduct the grounding wire and the grounding column, thereby achieving the purpose of leading current into the ground.

Preferably, the ground connection post is provided with a fixing hole communicated with the ground connection hole, an included angle exists between the axis of the fixing hole and the axis of the ground connection hole, and the fixing hole is provided with an internal thread.

By adopting the technical scheme, the grounding bolt penetrates through the fixing hole and then abuts against a part of the grounding conductor in the grounding hole so as to fix the position of the grounding conductor in the grounding hole, and thus the grounding conductor can guide the current of the grounding column into the ground.

Preferably, the axis of the fixing hole is perpendicular to the axis of the grounding hole.

Through adopting above-mentioned technical scheme, when earth bolt butt was located the downthehole part of ground connection to earth conductor, earth bolt was perpendicular with the downthehole part that ground conductor is located the ground connection to make earth bolt better compress tightly earth conductor, thereby fixed earth conductor is in the downthehole position of ground connection, thereby guarantees that earth conductor can be with the leading-in ground of the electric current of ground connection post.

Preferably, the grounding device further comprises a gasket, the gasket is sleeved on the grounding piece, and when the end portion of the grounding piece is pressed and riveted to be fixed on the shell cover, the grounding piece is attached to the gasket.

Through adopting above-mentioned technical scheme, locate the tip that stretches out behind the connecting groove is passed to the ground connection piece with the gasket cover, when the tip pressure riveting of ground connection piece was fixed on the shell lid, utilize the gasket so that the shell lid accepts the packing force that the ground connection piece applyed on the shell lid uniformly to guarantee the normal form of shell lid, keep away the shell lid and warp, and guarantee the normal use state of ground connection piece.

Preferably, the periphery of ground connection piece is equipped with spacing face, spacing face is used for the cell wall towards the spread groove, be equipped with the stopper on the cell wall of spread groove, the stopper be used for butt joint to spacing face.

Through adopting above-mentioned technical scheme, when spacing face butt when as for the stopper, the restriction connecting rod is at the spread groove internal rotation to when ground connection spare is connected with earth conductor, avoid ground connection spare to rotate the condition that leads to the earth conductor of being connected with ground connection spare to break away from, so that normally switch on between ground connection post and the earth conductor, thereby realize the mesh with the leading-in ground of electric current.

In summary, the present application includes at least one of the following beneficial technical effects:

1. compared with tin soldering, whether the grounding piece is in direct contact with the shell cover or not can be confirmed more visually in a mode of riveting the grounding piece by pressing, and whether the grounding piece is conducted with the shell cover or not is further judged, so that the riveting has better connection reliability. So that when the internal electrical elements of the housing generate current, the current can be conducted underground for the purpose of ground protection.

2. When the grounding bolt is abutted to one part of the grounding conductor in the grounding hole, the grounding bolt is perpendicular to one part of the grounding conductor in the grounding hole, so that the grounding bolt can better compress the grounding conductor, the position of the grounding conductor in the grounding hole is fixed, and the grounding conductor can guide the current of the grounding column into the ground.

3. When spacing face butt when being as for the stopper, the restriction connecting rod is at the spread groove internal rotation to when ground connection spare is connected with earth conductor, avoid ground connection spare to rotate the condition that leads to the earth conductor who is connected with ground connection spare to break away from, so that normally switch on between ground post and the earth conductor, thereby realize the purpose with the leading-in earth of electric current.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a smart capacitor with internal electrical components grounded.

Fig. 2 is a cross-sectional view of a smart capacitor with internal electrical components grounded.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an exploded view of the cover, ground and spacer.

Fig. 5 is an enlarged view at B in fig. 4.

Description of reference numerals: 1. a housing; 11. a mounting cavity; 2. a shell cover; 21. connecting grooves; 22. a limiting block; 3. a ground member; 31. a ground post; 311. a ground hole; 312. a fixing hole; 32. a connecting rod; 321. a limiting groove; 3211. a limiting surface; 33. a fixing sheet; 4. a gasket; 41. avoiding the hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1 and 2, the present embodiment discloses a smart capacitor for grounding internal electrical components, which includes a case 1 and a case cover 2.

Casing 1 establishes to tubbiness and vertical setting, and casing 1's lower extreme is sealed, and casing 1's upper end establishes to the opening, and is equipped with the installation cavity 11 that supplies the inside electrical component installation of intelligent capacitor in the casing 1. The cap 2 is used for connecting in the upper end of casing 1 and covers the opening of casing 1, is equipped with the spread groove 21 on the cap 2, and spread groove 21 runs through cap 2 along vertical direction.

Referring to fig. 2 and 3, a ground member 3 and a pad 4 are further included.

The grounding piece 3 comprises a grounding post 31 and a connecting rod 32, and the diameter of the grounding post 31 is larger than that of the connecting rod 32. The one end of connecting rod 32 is coaxial and fixed connection in the one end of ground post 31, and the other end of connecting rod 32 passes and stretches out behind the spread groove 21, and ground post 31 is located the one side that the cap 2 deviates from installation cavity 11, and the one end of keeping away from ground post 31 of connecting rod 32 stretches into in installation cavity 11.

Be equipped with on gasket 4 and supply the hole 41 of dodging that connecting rod 32 wore to establish, dodge the one end that connecting rod 32 stretches out spread groove 21 to be located in the hole 41 cover, dodge the inner wall of hole 41 and the periphery laminating of connecting rod 32, and gasket 4 laminating cap 2 is towards the terminal surface of installation cavity 11. At this time, the two ends of the grounding member 3 can be clamped by a squeeze riveter, and then the end of the connecting rod 32 extending out of the connecting groove 21 is squeezed and riveted, so that the fixing piece 33 for connecting the internal electrical element is tightly abutted on the gasket 4, and the gasket 4 is tightly abutted on the end face of the housing cover 2 facing the mounting cavity 11.

The housing 1, the housing cover 2, the grounding member 3 and the spacer 4 may be made of conductive metal or conductive plastic so as to have conductivity. In the present embodiment, the housing 1, the housing cover 2, the grounding member 3 and the gasket 4 are made of conductive metal materials.

Referring to fig. 4 and 5, the connecting groove 21 is a circular groove, a limiting block 22 is disposed on a groove wall of the connecting groove 21, a projection of the limiting block 22 on a horizontal plane is an arc, and a center of the arc limiting block 22 coincides with a center of the connecting groove 21.

The periphery of connecting rod 32 is equipped with spacing groove 321, and the cell wall of spacing groove 321 is established to spacing face 3211. When the connecting rod 32 is embedded into the connecting groove 21, the limiting surface 3211 is configured to abut against an end surface of the limiting block 22 facing the connecting rod 32. In this embodiment, two limiting blocks 22 are symmetrically arranged about the axis of the connecting groove 21, the strings of the two limiting blocks 22 are parallel to each other, and the limiting blocks 22 and the shell cover 2 are integrally formed; and, at the same time, the inner circumference of the escape hole 41 is attached to the outer circumference of the connecting rod 32, and in the present embodiment, the escape hole 41 is formed as a kidney-shaped hole.

The grounding post 31 has a grounding hole 311 on the outer periphery thereof, and the grounding hole 311 penetrates the grounding post 31 along the radial direction of the grounding post 31. The upper end surface of the ground stud 31 is provided with a fixing hole 312 coaxial with the ground stud 31, and the fixing hole 312 extends in the axial direction of the ground stud 31 and communicates with the ground hole 311 such that the axis of the fixing hole 312 is perpendicular to the axis of the ground hole 311. The fixing hole 312 is provided with an internal thread, when the earth conductor is embedded into the earth hole 311, a bolt is used to penetrate through the fixing hole 312 and then extend into the earth hole 311 and abut against the earth conductor, and the bolt is screwed with the fixing hole 312.

The implementation principle of the intelligent capacitor for grounding the internal electrical element in the embodiment of the application is as follows: connecting rod 32 and ground post 31 integrated into one piece are ground connection piece 3, before the installation, stretch out after passing spread groove 21 with the tip of ground connection piece 3 (being the connecting rod 32 deviates from the one end of ground post 31), and locate the tip of ground connection piece 3 with gasket 4 cover, utilize squeeze riveter to grasp the tip of ground connection piece 3 after the both ends squeeze riveter riveting ground connection piece 3 in order to form stationary blade 33, and make stationary blade 33 support tightly to the surface of gasket 4, and then make gasket 4 paste tight apron, with the position of fixed ground connection piece 3 on the apron.

The electric element in the installation cavity 11 is connected with the fixing sheet 33, the grounding lead is embedded into the grounding hole 311 and then fixed through the bolt, the shell cover 2 is connected to the end part of the opening of the shell 1 and covers the opening of the shell 1, and therefore the purpose of leading current generated by the electric element in the installation cavity 11 into the ground is achieved, the purpose of grounding protection is achieved, and harm to personnel and the electric element in the installation cavity 11 is avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An intelligent capacitor for grounding of internal electrical elements, comprising a shell (1) and a shell cover (2) arranged on the shell (1), characterized in that: still include ground connection piece (3), be provided with spread groove (21) on cap (2), ground connection piece (3) pass spread groove (21) and its tip is riveted and is fixed on cap (2).

2. A smart capacitor for grounding internal electrical components as claimed in claim 1 wherein: ground connection spare (3) are including ground connection post (31) and connecting rod (32), connecting rod (32) coaxial coupling is in the one end of ground connection post (31), the one end of connecting rod (32) is used for passing and stretches out behind spread groove (21), the tip that connecting rod (32) stretched out spread groove (21) is pressed and is riveted and form stationary blade (33) in order to fix on cap (2), just ground connection post (31) are used for laminating cap (2) towards the tip of connecting rod (32).

3. A smart capacitor for grounding internal electrical components as claimed in claim 2 wherein: the grounding column (31) is positioned on one side of the shell cover (2) departing from the shell (1).

4. A smart capacitor for grounding internal electrical components as claimed in claim 3 wherein: and a grounding hole (311) is formed in the grounding column (31), and the grounding hole (311) is used for embedding a grounding conducting wire.

5. A smart capacitor for grounding internal electrical components as claimed in claim 4 wherein: earthing pole (31) are equipped with fixed orifices (312) with earthing hole (311) intercommunication, there is the contained angle between the axis of fixed orifices (312) and the axis of earthing hole (311), just fixed orifices (312) are equipped with the internal thread.

6. A smart capacitor for grounding internal electrical components as claimed in claim 5 wherein: the axis of the fixing hole (312) is perpendicular to the axis of the grounding hole (311).

7. A smart capacitor for grounding internal electrical components as claimed in claim 1 wherein: the grounding piece (3) is sleeved with the gasket (4), and when the end portion of the grounding piece (3) is fixed to the shell cover (2) in a press riveting mode, the grounding piece (3) is attached to the gasket (4).

8. A smart capacitor for grounding internal electrical components as claimed in claim 1 wherein: the periphery of ground connection piece (3) is equipped with spacing face (3211), spacing face (3211) are used for towards the cell wall of spread groove (21), be equipped with stopper (22) on the cell wall of spread groove (21), stopper (22) are used for the butt extremely spacing face (3211).