A grounding cabinet

Abstract

The present invention relates to a grounding cabinet, which belongs to the technical field of power grounding. The grounding cabinet includes a cabinet, a multi-layer chassis arranged inside the cabinet, and a joint arranged on the inner wall of one side of the cabinet, the number of the joints is one less than the number of the chassis; the adjacent joints are electrically connected through a first wire; the chassis and the joints are electrically connected correspondingly through a second wire; the joint near the bottom of the cabinet is electrically connected to a grounding copper bus through a third wire; the joint includes a shell, a busbar arranged inside the shell, and a plurality of springs arranged inside the shell and exposed at one end, the springs and the busbar are abutted and connected. The present invention collects the grounding wires of the chassis onto one wire through a joint, so that the wiring inside the chassis is convenient and simple, and does not affect the appearance and operability of the chassis, the connection reliability is high, and plugging and unplugging are convenient, which enhances the convenience of assembly and maintenance of the grounding cabinet device.

Description

Technical Field

[0001] The invention belongs to the technical field of power grounding, and in particular relates to a grounding cabinet. Background Art

[0002] Using grounding wires to make reliable and technically compliant electrical connections between certain parts of electrical equipment and grounding bodies is called grounding, such as grounding the metal casing of motors, transformers, and switchgear. When electrical equipment leaks electricity, its casing, bracket, and other metal parts connected to it will be exposed to voltage. If someone accidentally touches these live parts, an electric shock accident may occur. The purpose of grounding is to ensure the normal operation of electrical equipment and personal safety. To achieve this goal, the grounding device must be very reliable.

[0003] Grounding is to connect the neutral point of the power system and electrical equipment, the exposed conductive parts of the electrical equipment and the external conductive parts of the equipment to the earth through conductors. In order to prevent the equipment from being energized due to insulation damage and endangering personal safety, under normal circumstances, current will flow through the grounding electrode for a long time, but it is only an unbalanced current of several amperes to tens of amperes. Reliable grounding provides a unified platform for the system.

[0004] Most of the existing grounding methods for power equipment use multiple wire harnesses to connect the chassis in series from beginning to end to achieve unified grounding. However, if one of the wires fails, all the chassis in series in front of it will no longer be grounded, which can easily cause serious safety accidents. In addition, the existing grounding methods for power equipment will be uneven or have debris during the specific overlapping process, so that the overlapping surface cannot be completely fitted, thus affecting the grounding effect. At the same time, the wire harness will block the front panel of the chassis, affecting the appearance and operability of the chassis. Summary of the invention

[0005] The object of the present invention is to provide a grounding cabinet, which connects the grounding wires of the chassis through multiple connectors and gathers them into one conductor, so as to solve the problems of uneven grounding wire overlap, poor grounding effect, poor aesthetics and complicated maintenance operations in the prior art.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A grounding cabinet comprises a cabinet body, a multi-layer chassis arranged inside the cabinet body, and a joint arranged on an inner wall of one side of the cabinet body, wherein the number of the joints is one less than the number of the chassis;

[0008] The adjacent connectors are electrically connected via a first wire; the chassis and the connectors are electrically connected via a second wire; the connector near the bottom of the cabinet is electrically connected to a grounding copper busbar via a third wire, so that all the chassis in the cabinet are grounded;

[0009] The connector includes a shell, a busbar disposed inside the shell, and a plurality of spring sheets disposed inside the shell and exposed at one end, wherein the spring sheets are abutted against the busbar, so that the plurality of spring sheets are electrically connected to each other through the busbar.

[0010] Preferably, the shell is a symmetrical structure, including a main board body, two side plates extending vertically from the two side edges of the main board body, and the side plates are right-angled trapezoids; the shell also includes a first inclined plate extending vertically inward from the hypotenuse of the right-angled trapezoid, and a straight plate connected to the hypotenuse on the inner side of the first inclined plate, the straight plate is vertically arranged to the main board body, and a gap for accommodating the bus bar is arranged between the straight plate and the main board body; the shell also includes a second inclined plate arranged between the two straight plates, and the two ends of the bottom edge of the second inclined plate (i.e., the edge with a closer vertical distance to the main board body) are respectively abutted against the end corners of the two straight plates; the shell also includes a first flat plate connected to the top edge of the first inclined plate (i.e., the edge with a farther vertical distance to the main board body) and vertically arranged to the main board body, and a second flat plate connected to the top edge of the second inclined plate and vertically arranged to the main board body.

[0011] Preferably, the busbar is arranged on the inner side surface of the main board body, and one side surface of the busbar is respectively abutted against one side edge of the straight plate and the bottom edge of the second inclined plate; a first chamber is formed between the first inclined plate, the busbar, the side plate and the straight plate, and a second chamber is formed between the second inclined plate, the busbar and the two straight plates; the first chamber and the second chamber are used to accommodate the spring sheet.

[0012] Preferably, the spring sheet includes a first plate surface and a second plate surface connected in a V-shape, and the spring sheet is respectively adapted to the first chamber and the second chamber. The spring sheet is adapted to the first chamber and the second chamber so that the spring sheet can be completely fitted in the first chamber and the second chamber.

[0013] Preferably, the elastic fragments include a first elastic fragment placed in one of the first chambers, a second elastic fragment placed in another of the first chambers, and a third elastic fragment placed in the second chamber.

[0014] Preferably, in two adjacent connectors, the first wire is connected between the third spring clip of one connector and the first spring clip of the other connector; the second wire is correspondingly connected between the chassis and the second spring clip; the third wire is connected between the third spring clip on the connector near the bottom surface of the cabinet and the grounding copper bus; it should be noted that the first spring clip and the second spring clip on the connector near the top surface of the cabinet are respectively connected to different chassis through the second wire.

[0015] Preferably, one side of the first panel surface is exposed to the first cavity or the second cavity to facilitate connection with the first wire, the second wire or the third wire.

[0016] Preferably, one side edge of the second plate surface abuts against the first flat plate or the second flat plate, so that the elastic sheet is engaged in the first cavity or the second cavity.

[0017] Preferably, openings are provided at the connection between the first inclined plate and the first flat plate, and at the connection between the second inclined plate and the second flat plate, so as to facilitate the removal of the spring pieces using a specific tool.

[0018] Preferably, the spring piece is connected to the second wire and the third wire respectively by soldering, the second wire and the chassis, the third wire and the grounding copper bus are connected by wire ears; both ends of the first wire are connected to the spring piece by soldering.

[0019] The technical solution proposed by the present invention has the following beneficial effects:

[0020] 1. The connector is arranged correspondingly to the chassis, and the second spring piece on the connector is connected correspondingly to the chassis through the second wire. Even if a part of the second wires connected to the chassis fails, it will not affect the grounding effect of other chassis.

[0021] 2. A spring sheet is provided on the joint; openings are provided at the connection between the first inclined plate and the first flat plate, and at the connection between the second inclined plate and the second flat plate. The setting of the openings makes it more convenient to remove the spring sheet using specific tools; a wire is connected to the spring sheet, which not only makes the connection reliable, but also facilitates plugging and unplugging. Any one of the wires can be taken out separately, thereby enhancing the convenience of assembly and maintenance of the grounding cabinet device.

[0022] 3. By setting the connector, the grounding wires of the chassis are finally gathered into one conductor. The setting of the connector makes it convenient to route the wires inside the chassis without affecting the aesthetics and operability of the chassis.

[0023] 4. The joint of the present application has a simple structure, low cost, good machinability, and is easy to install, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a grounding cabinet according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A local enlarged view at point A;

[0026] Figure 3 for Figure 1 Structural explosion diagram of the joint in the grounding cabinet;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the spring clip in the grounding cabinet. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Most of the existing grounding methods for power equipment use multiple wire harnesses to connect the chassis in series from beginning to end to achieve unified grounding. However, if one of the wires fails, all the chassis in series in front of it will no longer be grounded, which can easily cause serious safety accidents. In addition, the existing grounding methods for power equipment will be uneven or have debris during the specific overlapping process, so that the overlapping surface cannot be completely fitted, thus affecting the grounding effect. At the same time, the wire harness will block the front panel of the chassis, affecting the appearance and operability of the chassis.

[0034] The grounding cabinet of the present application connects the grounding wires of the chassis through multiple connectors and gathers them together on one conductor, which can effectively solve the problems of uneven grounding wire overlap, poor grounding effect, poor aesthetics and complicated maintenance operations in the prior art.

[0035] like Figure 1 and 2 As shown, the present invention provides a grounding cabinet, comprising a cabinet body 1, a multi-layer chassis 2 arranged inside the cabinet body 1, and joints 3 arranged on an inner wall of one side of the cabinet body 1, wherein the number of the joints 3 is one less than the number of the chassis 2;

[0036] The adjacent connectors 3 are electrically connected via a first wire 4; the chassis 2 and the connectors 3 are electrically connected via a second wire 5; the connector 3 near the bottom of the cabinet 1 is electrically connected to a grounding copper bus (not marked in the figure) via a third wire 6, so that all the chassis 2 in the cabinet 1 are grounded;

[0037] like Figure 3 As shown, the connector 3 includes a shell 31, a bus bar 32 arranged inside the shell 31, and a plurality of spring sheets 33 arranged inside the shell 31 and exposed at one end, the spring sheets 33 are abutted against the bus bar 32, so that the plurality of spring sheets 33 are electrically connected to each other through the bus bar 32.

[0038] As a preferred embodiment, the shell 31 is a symmetrical structure, including a main body 311, two side plates 312 extending vertically from the two sides of the main body 311, and the side plates 312 are right-angled trapezoids; the shell 31 also includes a first inclined plate 313 extending vertically inward from the hypotenuse of the right-angled trapezoid, and a straight plate 314 connected to the hypotenuse inside the first inclined plate 313, the straight plate 314 is vertically arranged with the main body 311, and a gap for accommodating the busbar 32 is arranged between the straight plate 314 and the main body 311; the shell 31 also includes a second inclined plate 315 arranged between the two straight plates 314, and the two ends of the bottom edge of the second inclined plate 315 (that is, the edge that is closer to the main board body 311 in vertical distance) are respectively abutted against the end corners of the two straight plates 314; the shell 31 also includes a first flat plate 316 connected to the top edge of the first inclined plate 313 (that is, the edge that is farther from the main board body in vertical distance) and vertically arranged with the main board body 311, and a second flat plate 317 connected to the top plate of the second inclined plate 315 and vertically arranged with the main board body 311.

[0039] As a preferred embodiment, the busbar 32 is disposed on the inner side of the main body 311, and one side of the busbar 32 is respectively in contact with one side of the straight plate 314 and the bottom of the second inclined plate 315; a first chamber 100 is formed between the first inclined plate 313, the busbar 32, the side plate 312 and the straight plate 314, and a second chamber (not marked in the figure) is formed between the second inclined plate 315, the busbar 32 and the two straight plates 314. The first chamber 100 and the second chamber are used to accommodate the spring 33.

[0040] like Figure 4 As shown, as a preferred embodiment, the spring piece 33 includes a first plate surface 331 and a second plate surface 332 connected in a V-shape, and the spring piece 33 is respectively adapted to the first chamber 100 and the second chamber. The spring piece 33 is adapted to the first chamber 100 and the second chamber so that the spring piece 33 can be completely fitted in the first chamber 100 and the second chamber.

[0041] As a preferred embodiment, the elastic piece 33 includes a first elastic piece 10 placed in one of the first chambers 100 , a second elastic piece 20 placed in another of the first chambers 100 , and a third elastic piece 30 placed in the second chamber.

[0042] As a preferred embodiment, in two adjacent connectors 3, the first wire 4 is connected between the third spring clip 30 of one connector 3 and the first spring clip 10 of the other connector 3; the second wire 5 is correspondingly connected between the chassis 2 and the second spring clip 20; the third wire 6 is connected between the third spring clip 30 on the connector 3 near the bottom surface of the cabinet 1 and the grounding copper busbar; it should be noted that the first spring clip 10 and the second spring clip 20 on the connector 3 near the top surface of the cabinet 1 are respectively connected to different chassis 2 through the second wire 5.

[0043] As a preferred embodiment, one side of the first plate surface 331 is exposed to the first chamber 100 or the second chamber, so as to be connected to the first wire 4 , the second wire 5 or the third wire 6 .

[0044] As a preferred embodiment, one side of the second plate surface 332 abuts against the first flat plate 316 or the second flat plate 317 , so that the elastic sheet 33 is engaged in the first chamber 100 or the second chamber.

[0045] As a preferred embodiment, openings 7 are provided at the connection between the first inclined plate 313 and the first flat plate 316 , and at the connection between the second inclined plate 315 and the second flat plate 317 , so as to facilitate the use of specific tools to remove the spring piece 33 .

[0046] As a preferred embodiment, the spring piece 33 is respectively connected to the second wire 5 and the third wire 6 by soldering, the second wire 5 and the chassis 2, and the third wire 6 and the grounding copper bus are connected by wire ears (not marked in the figure); both ends of the first wire 4 are connected to the spring piece 33 by soldering.

[0047] The connector structure of the present application is simple to set up. The grounding wires of the chassis are gathered into one wire through the connector, which makes the wiring inside the chassis convenient and simple, and does not affect the appearance and operability of the chassis. The connector is connected to the chassis separately through the second wire. Even if the second wire connected to some chassis fails, it will not affect the grounding effect and normal use of other chassis. The present application is connected to the wire through the spring clip, the connection reliability is high, and it is easy to plug and unplug. Any one of the wires can be taken out separately, which greatly enhances the convenience of assembly and maintenance of the grounding cabinet device.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A grounding cabinet, characterized in that: It comprises a cabinet, a multi-layer chassis arranged inside the cabinet, and a joint arranged on an inner wall of one side of the cabinet, wherein the number of the joints is one less than the number of the chassis; The adjacent connectors are electrically connected via a first wire; the chassis and the connectors are electrically connected via a second wire; the connectors near the bottom of the cabinet are electrically connected to a grounding copper busbar via a third wire; The connector includes a shell, a busbar disposed inside the shell, and a plurality of spring sheets disposed inside the shell and exposed at one end, wherein the spring sheets are abutted against the busbar; The spring sheet comprises a first plate surface and a second plate surface connected in a V-shape; The spring pieces are respectively connected to the second wire and the third wire by soldering.

2. The grounding cabinet according to claim 1, characterized in that: The shell is a symmetrical structure, including a main board body and two side plates extending vertically from the two side edges of the main board body, and the side plates are right-angled trapezoids; the shell also includes a first inclined plate extending vertically inward from the hypotenuse of the right-angled trapezoid, and a straight plate connected to the hypotenuse on the inner side of the first inclined plate, the straight plate is vertically arranged to the main board body, and a gap is arranged between the straight plate and the main board body; the shell also includes a second inclined plate arranged between the two straight plates, and the two ends of the bottom edge of the second inclined plate are respectively abutted against the end corners of the two straight plates; the shell also includes a first flat plate connected to the top edge of the first inclined plate and vertically arranged to the main board body, and a second flat plate connected to the top edge of the second inclined plate and vertically arranged to the main board body.

3. The grounding cabinet according to claim 2, characterized in that: The busbar is arranged on the inner side surface of the main board body, and one side surface of the busbar is respectively abutted against one side edge of the straight plate and the bottom edge of the second inclined plate; a first cavity is formed between the first inclined plate, the busbar, the side plate and the straight plate, and a second cavity is formed between the second inclined plate, the busbar and the two straight plates.

4. The grounding cabinet according to claim 3, characterized in that: The spring pieces are respectively adapted to the first chamber and the second chamber.

5. The grounding cabinet according to claim 3, characterized in that: The elastic pieces include a first elastic piece placed in one of the first chambers, a second elastic piece placed in another of the first chambers, and a third elastic piece placed in the second chamber.

6. The grounding cabinet according to claim 5, characterized in that: In two adjacent connectors, the first wire is connected between the third spring clip of one connector and the first spring clip of the other connector; the second wire is correspondingly connected between the chassis and the second spring clip; the third wire is connected between the third spring clip on the connector near the bottom of the cabinet and the grounding copper bus; the first spring clip and the second spring clip on the connector near the top of the cabinet are respectively connected to different chassis through the second wire.

7. The grounding cabinet according to claim 4, characterized in that: One side of the first plate surface is exposed to the first cavity or the second cavity.

8. The grounding cabinet according to claim 4, characterized in that: One side edge of the second plate surface abuts against the first flat plate or the second flat plate.

9. The grounding cabinet according to claim 2, characterized in that: Openings are provided at the connection between the first inclined plate and the first flat plate, and at the connection between the second inclined plate and the second flat plate.

10. The grounding cabinet according to claim 1, characterized in that: The second wire and the chassis, the third wire and the grounding copper bar are all connected through wire ears; and both ends of the first wire are connected to the spring piece through soldering.

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