CN217848355U

CN217848355U - Grounding part and electrical equipment

Info

Publication number: CN217848355U
Application number: CN202221650048.3U
Authority: CN
Inventors: 王博; 于海洋; 张方惠
Original assignee: Sungrow Shanghai Co Ltd
Current assignee: Sungrow Shanghai Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-18
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a grounding part and electrical equipment, which comprises a grounding seat and a bracket arranged on the grounding seat; the grounding seat is provided with a first positioning groove and a second positioning groove which are used for accommodating a grounding wire; the support is fixed in through the connecting piece the top of earthing bracket covers simultaneously first constant head tank and second constant head tank, be equipped with on the support corresponding to the first retaining member of first constant head tank with corresponding to the second retaining member of second constant head tank, first retaining member and second retaining member are used for locking earth wire tip in first constant head tank and the second constant head tank. This grounding part need not the crimping terminal when ground connection, can realize multichannel ground connection nearby inside the box, moreover, connection performance is stable, reliable, easily operates, compares with copper bar ground structure, can show reduction in production cost to fine solution the various problems that traditional ground connection mode exists.

Description

Grounding part and electrical equipment

Technical Field

The utility model relates to a circuit ground connection part technical field especially relates to the ground connection part that sets up in electrical equipment such as dc-to-ac converter. The utility model discloses still relate to and be equipped with the electrical equipment of ground connection part.

Background

At present, the multi-path grounding in the inverter box body is generally grounded in a grounding copper bar mode, or a grounding wire is pressed and connected with an OT terminal (the head is circular, the tail is cylindrical, and the appearance presents an OT shape and is called as OT terminal in the industry) and locked on a reserved threaded hole in the box body through a screw.

If adopt the ground copper bar to carry out the ground connection, then the box of equipment is inside because ground copper bar rigidity, and the ground connection of different port positions can not realize ground connection nearby, can lead to inside to walk the line length different, not only seems mixed and disorderly, and moreover, the price of copper bar is higher, is unfavorable for reduction in production cost.

If the threaded hole reserved in the box body is used for grounding, the end part of the grounding wire needs to be locked by a field crimping terminal, so that the operation is complex, time and labor are wasted, the connection reliability is relatively poor, and the phenomenon of poor grounding is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grounding part. The grounding component can realize multi-path near grounding in the box body, and does not need a crimping terminal during grounding.

Another object of the utility model is to provide an electrical equipment is equipped with the ground connection part.

In order to achieve the above object, the present invention provides a grounding component, which comprises a grounding seat and a bracket disposed on the grounding seat; the earthing bracket is equipped with first constant head tank and the second constant head tank that is used for holding the earth connection, the support is fixed in through the connecting piece the top of earthing bracket covers simultaneously first constant head tank and second constant head tank, be equipped with on the support corresponding to the first retaining member in first constant head tank with corresponding to the second retaining member of second constant head tank, first retaining member and second retaining member are used for locking earth connection line tip in first constant head tank and the second constant head tank.

Optionally, the first positioning slot and the second positioning slot transversely penetrate through the grounding seat.

Optionally, the groove bottoms of the first positioning groove and the second positioning groove are provided with circular arcs matched with the grounding wire.

Optionally, the bracket includes a cover plate covering the first positioning groove and the second positioning groove, and a sidewall extending from two sides of the cover plate to a direction away from the ground socket.

Optionally, the bracket is provided with a screw hole matched with the connecting piece, a first threaded hole matched with the first locking piece and a second threaded hole matched with the second locking piece in a penetrating manner, and the screw hole is positioned between the first threaded hole and the second threaded hole.

Optionally, a limiting structure is arranged between the grounding seat and the bracket;

the limiting structure comprises limiting columns formed at two ends of the top of the grounding seat and limiting grooves formed at two ends of the support, and the limiting columns are in clamping fit with the limiting grooves.

Optionally, the ground socket has a main body portion and a connection bottom plate located at the bottom of the main body portion, and the first positioning groove and the second positioning groove are located at a side of the main body portion facing away from the connection bottom plate.

Optionally, the grounding part has at least two grounding seats connected to each other.

In order to achieve the other object, the present invention further provides an electrical device, comprising a box body and an electrical component arranged in the box body, wherein the grounding component is arranged in the box body to ground the electrical component,

the grounding part and the box body are of an integrated structure, or the grounding part is connected to the box body.

Optionally, the box body comprises a main box body and an auxiliary box body; the grounding parts are arranged in the auxiliary box bodies, grounding wires in the main box bodies are led into the auxiliary box bodies and connected with the corresponding grounding parts, and the grounding wires of the grounding parts are led out from the auxiliary box bodies to be grounded.

The utility model provides a grounding part mainly comprises ground connection seat and support two parts, and wherein, the constant head tank of ground connection seat can be covered to the support to be equipped with the retaining member on the support, can lock grounding wire tip in the constant head tank of ground connection seat, thereby realize the ground connection. This kind of ground structure does not need the crimping OT terminal just can realize ground connection, through set up a plurality of ground connection parts in different positions, can make multichannel earth connection realize ground connection nearby in different interface positions, moreover, connection performance is stable, reliable, easily operates, compares with copper bar ground structure, can show reduction in production cost to fine solution the various problems that traditional ground connection mode exists.

Drawings

Fig. 1 is a schematic structural diagram of a grounding component according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the grounding component shown in fig. 1 expanded along a vertical direction;

fig. 3 is a schematic structural view illustrating an electrical apparatus provided in an embodiment of the present invention, in which a grounding component is disposed in a box;

fig. 4 is a schematic structural diagram of another electrical device provided in an embodiment of the present invention, in which a grounding component is disposed in a box;

fig. 5 is a schematic structural diagram of another electrical apparatus provided in an embodiment of the present invention, in which a grounding component is disposed in a box.

In the figure:

1. the ground seat 2, the bracket 2-1, the cover plate 2-2, the side wall 3, the connecting bottom plate 4, the first positioning groove 5, the second positioning groove 6, the grounding wire end 7, the screw hole 8, the annular boss 9, the screw 11, the first screw hole 12, the second screw hole 13, the first set screw 14, the second set screw 15, the limiting column 16, the limiting groove 17, the third positioning groove 18, the fourth positioning groove 19, the third set screw 20, the fourth set screw 21, the box 21-1, the main box 21-2, the auxiliary box 100, the grounding part

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description is given with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any actual relationship or order between such elements.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a grounding component according to an embodiment of the present invention.

In a specific embodiment, the utility model provides a ground connection part mainly comprises parts such as ground connection seat 1 and support 2, wherein, ground connection seat 1 is the die casting, support 2 is the sheet metal component, ground connection seat 1's main part is the rectangle lug shape that four right angle parts all lead the fillet, the bottom has orthographic projection area and is greater than its main part's rectangular connection bottom plate 3, ground connection seat 1 main part's top is equipped with parallel first constant head tank 4 and second constant head tank 5 to hold the earth connection tip 6 that needs connect.

The cross sections of the first positioning groove 4 and the second positioning groove 5 are in a U shape with an upward opening, the groove bottom of the U shape is provided with a circular arc matched with the grounding wire so as to be convenient for crimping the grounding wire, the first positioning groove 4 and the second positioning groove 5 transversely penetrate through the grounding seat 1 so as to be convenient for the grounding wire to be connected with a grounding component from the same side of the grounding seat 1, and the wiring arrangement of the grounding wire is more convenient. The support 2 is provided with a cover plate 2-1 covering the first positioning groove 4 and the second positioning groove 5 and side walls 2-2 extending from two sides of the cover plate to the direction far away from the grounding seat 1, and the two side walls 2-2 are perpendicular to the first positioning groove 4 and the second positioning groove 5, so that the structural strength of the support 2 is improved, and the support is convenient to take and mount.

The top of the grounding seat 1 is provided with a screw hole 7 between the first positioning groove 4 and the second positioning groove 5, the screw hole 7 is provided with an annular boss 8 at the upper port, the support 2 is provided with a through hole corresponding to the screw hole 7, and a screw 9 passes through the through hole on the support 2 and is screwed into the screw hole 7, so that the support 2 is fixed at the top of the grounding seat 1.

After support 2 and ground connection 1 fixed connection, can cover first constant head tank 4 and second constant head tank 5 on the ground connection 1 simultaneously, be equipped with the first screw hole 11 corresponding to first constant head tank 4 and the second screw hole 12 corresponding to second constant head tank 5 on the support 2, because the thickness of the bottom plate of support 2 is thinner, in order to make first screw hole 11 and second screw hole 12 have sufficient length, this embodiment is equipped with the first cover body and the second cover body of downwardly extending here, the hole of the first cover body forms first screw hole 11 through processing, the hole of the second cover body forms second screw hole 12 through processing.

Of course, the formation of the first and

second screw holes

11 and 12 is not limited to the above, and in other embodiments, the first and

second screw holes

11 and 12 may be formed by fixing first and second nuts to the bottom surface of the bracket 2.

The bracket 2 is provided with a first set screw 13 and a second set screw 14, and the grounding wire end 6 can be locked in the first positioning groove 4 and the second positioning groove 5 by screwing the first set screw 13 and the second set screw 14 into the first threaded hole 11 and the second threaded hole 12.

It is considered that in practice, rotating the screw 9, the first set screw 13 and the second set screw 14 causes the holder 2 to deflect relative to the grounding plate 1, and that after grounding, the holder 2 also needs to be prevented from deflecting relative to the grounding plate 1. Therefore, the present embodiment further has a limiting structure between the grounding seat 1 and the bracket 2.

Specifically, this limit structure comprises the spacing post 15 that forms at 1 top both ends of earthing bracket and the spacing groove 16 that forms at 2 both ends of support, the cross-section of spacing post 15 and spacing groove 16 is semi-circular, the plane at both ends is located the coplanar about the plane of spacing post 15 and connecting seat 1, when assembling, place the top at earthing bracket 1 with support 2 along the direction of the first constant head tank 4 of perpendicular to and second constant head tank 5, can be through the joint cooperation of spacing post 15 with spacing groove 16, make support 2 can't deflect for earthing bracket 1, thereby the reliability of connection has been guaranteed effectively.

Referring to fig. 2, fig. 2 is a schematic structural view of the grounding component shown in fig. 1 after being expanded along a vertical direction.

This embodiment has expanded along the vertical direction on the basis of first kind ground connection part, is formed by two ground connection parts interconnect in the vertical direction, ground connection seat 1 integrated into one piece between them, and support 2 between them is integrated into one piece also, and the top of ground connection seat 1 has third constant head tank 17 and fourth constant head tank 18, is equipped with third holding screw 19 and fourth holding screw 20 corresponding to third constant head tank 17 and fourth constant head tank 18 on the support 2.

The grounding component can meet the requirement of multi-path grounding of one end interface, such as simultaneous grounding of four PV paths on one side of the inverter, and the like, and moreover, two grounding seats are connected along the direction perpendicular to the extending direction of the positioning groove, so that a plurality of mutually connected grounding seats can still be connected into the grounding wire from the same side.

The same parts of the present embodiment as those of the first grounding member are given the same reference numerals, and the same description thereof is omitted.

In addition to the grounding component, the present application also provides an electrical device, which may be an inverter or the like, and generally includes a box 21 and an electrical component (not shown) disposed in the box, and the grounding component 100 described above is disposed in the box 21 to ground the electrical component, and the grounding component 100 may be disposed in the box 21 in various ways.

As shown in fig. 3, in the first installation method, four grounding members 100 are arranged inside the case 21, the four grounding members 100 are arranged in the transverse direction with a certain distance therebetween, the case 21 is a die-cast case, and the grounding base 1 of the grounding member 100 is also die-cast, so that the case 21 and the grounding base 1 can be formed by one-step processing through a die-casting process, and the connection bottom plate 3 of the grounding member can be omitted because the case 21 and the grounding base 1 are of an integral structure. By means of the four grounding parts 100, a close grounding of different interface positions inside the cabinet of the electrical apparatus can be achieved.

As shown in fig. 4, in the second installation method, four grounding components 100 are arranged inside the box 21, the four grounding components 100 are arranged in the transverse direction and have a certain distance therebetween, and since the box 21 is a sheet metal box and the grounding seat 1 of the grounding component 100 is a die casting, the two are not suitable for being formed by one-time processing, in this case, the connecting bottom plate 3 of the grounding component 100 can be fixedly connected with the back plate of the box 21 through screws at four corners. Similarly, by means of the four grounding members 100, a close grounding at different interface positions inside the electrical equipment cabinet can be realized.

As shown in fig. 5, in a third installation manner, the box body 21 is divided into a main box body 21-1 and an auxiliary box body 21-2, the auxiliary box body 21-2 is a plastic box body, the material of the main box body 21-1 is not limited, four grounding components 100 are installed in the auxiliary box body 21-2 through screws, a grounding wire in the main box body 21-1 is led into the auxiliary box body 21-2 and connected with the corresponding grounding component 100, and the grounding wire of each grounding component 100 is led out from the auxiliary box body 21-2.

The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and different embodiments can be obtained by performing targeted adjustment according to actual needs. For example, the grounding members 100 may be unevenly distributed inside the case 21 with different intervals therebetween, or the grounding wires may be led out from the side of the case 21, or the grounding members 100 may be vertically arranged, or may be horizontally arranged after being rotated by 90 degrees, or the like, as required. This is not illustrated here, since many implementations are possible.

This grounding part 100 need not the crimping OT terminal when carrying out ground connection, can realize multichannel earth connection ground nearby inside box 21, moreover, can realize multichannel ground connection simultaneously through expanding, compares with copper bar ground connection mode, and the cost price of one-piece can be reduced to quarternary from fifteen yuan, and about 70% is saved to the one-piece cost to show reduction in production cost and cost.

The above is a detailed description of the grounding component and the electrical device provided by the present invention. The principle and the implementation of the present invention are explained by applying a specific embodiment, and the description of the above embodiment is only used to help understand the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The grounding part is characterized by comprising a grounding seat and a bracket arranged on the grounding seat; the earthing bracket is equipped with first constant head tank and the second constant head tank that is used for holding the earth connection, the support is fixed in through the connecting piece the top of earthing bracket covers simultaneously first constant head tank and second constant head tank, be equipped with on the support corresponding to the first retaining member in first constant head tank with corresponding to the second retaining member of second constant head tank, first retaining member and second retaining member are used for locking earth connection line tip in first constant head tank and the second constant head tank.

2. The grounding member of claim 1, wherein the first and second detents extend transversely through the grounding receptacle.

3. The grounding member according to claim 1, wherein groove bottoms of the first and second positioning grooves are provided in an arc shape fitting the grounding wire.

4. The grounding member of claim 3, wherein the bracket includes a cover plate covering the first and second detents and side walls extending from opposite sides of the cover plate away from the ground receptacle.

5. The grounding member of claim 1, wherein the bracket defines a screw hole therethrough for engaging the connector, a first threaded hole for engaging the first retaining member, and a second threaded hole for engaging the second retaining member, the screw hole being positioned between the first threaded hole and the second threaded hole.

6. The grounding component of claim 1, wherein a limiting structure is arranged between the grounding seat and the bracket; the limiting structure comprises limiting columns formed at two ends of the top of the grounding seat and limiting grooves formed at two ends of the support, and the limiting columns are in clamping fit with the limiting grooves.

7. The grounding member of claim 1, wherein the grounding receptacle has a body portion and a connection plate at a bottom of the body portion, and the first and second detents are located on a side of the body portion facing away from the connection plate.

8. The grounding member of claim 1, wherein the grounding member has at least two grounding sockets that are connected to each other.

9. An electrical apparatus comprising a housing and an electrical component disposed in the housing, wherein the grounding member of any one of claims 1 to 8 is disposed in the housing to ground the electrical component, the grounding member being connected to the housing, or the grounding member and the housing being of an integral structure.

10. The electrical equipment of claim 9, wherein the enclosure comprises a main enclosure and a secondary enclosure; the grounding parts are arranged in the auxiliary box bodies, grounding wires in the main box bodies are led into the auxiliary box bodies and connected with the corresponding grounding parts, and the grounding wires of the grounding parts are led out from the auxiliary box bodies to be grounded.