Grounding bar structure

Abstract

The utility model provides a grounding bar structure comprising a substrate, the substrate is provided with at least two connecting holes, the two connecting holes are respectively a first connecting hole and a second connecting hole, the first connecting hole is used for connecting a structural member needing grounding in equipment, and the second connecting hole is used for connecting a grounding shell of the equipment. Outer teeth are arranged on the edges of one side hole parts of the first connecting hole and the second connecting hole, and the outer teeth protrude outwards in the thickness direction of the base plate. According to the utility model, the outer teeth arranged on the edges of the hole parts of the first connecting hole and the second connecting hole can pierce the surface coating to be connected with the interior through the tightening force of a bolt, thereby achieving the purpose that an equipment grounding casing and an equipment structural member are fixedly connected with the grounding bar, achieving the safe grounding of an insulated structural member, and not damaging the insulation effect; the connection stability among the grounding bar, the grounding casing and the equipment structural member is improved, good communication among the grounding bar, the grounding casing and the equipment structural member is ensured, and the current can safely flow into the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power grounding devices, in particular to a grounding bar structure. Background Art

[0002] Grounding bars are used for grounding protection and lightning protection of live equipment, and are widely used in power systems, buildings and structures, industrial fields, electronic communications and other technical fields. They play an important grounding function in these fields to ensure the safe operation of equipment and the safety of personnel.

[0003] At present, the inverter energy storage system requires a reliable grounding system to ensure safe operation; the grounding bar can be used to establish a reliable grounding system, connect electrical equipment and systems to the ground, and ensure that the current can flow safely into the ground, which helps prevent the occurrence of safety problems such as current leakage, potential difference and electric shock, maintain the stable operation of the electrical system, and protect the safety of personnel and equipment. The traditional grounding bar only serves to connect the ground. For the equipment structure with a coating and insulation on the surface, the grounding bar structure will contact the coating of the equipment structure, which may be restricted by the coating, affecting the connection effect between the grounding bar and the equipment structure, and may make it impossible to ensure that the current can flow safely into the ground.

[0004] In view of this, it is indeed necessary to provide a technical solution to the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a grounding bar structure to solve the problem that the connection effect of the conventional grounding bar to the device structure with a coating on the surface is poor and affects the current flow.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A grounding bar structure includes a substrate, wherein the substrate is provided with at least two connection holes, the two connection holes are respectively a first connection hole and a second connection hole, the first connection hole is used to connect a structural member to be grounded in a device, and the second connection hole is used to connect a grounding shell of the device, and the edges of one side holes of the first connection hole and the second connection hole are both provided with external teeth, and the external teeth are both protruding toward the outside along the thickness direction of the substrate.

[0008] As an improvement of the grounding bar structure, the outer teeth at the edge of the hole portion of the first connection hole are multiple, and the multiple outer teeth are arranged at intervals along the edge of the hole portion of the first connection hole and are distributed in a surrounding manner.

[0009] As an improvement of the grounding bar structure, the outer teeth at the edge of the hole portion of the second connecting hole also have a plurality of teeth, and the plurality of outer teeth are arranged at intervals along the edge of the hole portion of the second connecting hole and are distributed in a circumferential manner.

[0010] As an improvement to the grounding row structure, the inner wall of the second connection hole is provided with a plurality of inner teeth, the plurality of inner teeth are evenly spaced and distributed in a circumferential manner along the inner wall of the second connection hole, and the inner teeth are all facing the center position of the second connection hole.

[0011] As an improvement of the grounding bar structure, the substrate includes a front side and a back side, the external teeth are all located on the back side of the substrate, the back side of the substrate is at least partially raised to form a convex portion, the second connecting hole passes through the convex portion, and the external teeth at the edge of the second connecting hole are all protruding from the surface of the convex portion.

[0012] As an improvement to the grounding bar structure, a portion of the front surface of the substrate corresponding to the convex portion is recessed to form a groove portion.

[0013] As an improvement to the grounding bar structure, the inner wall of the first connection hole is also provided with a plurality of inner teeth in a surrounding manner and evenly spaced apart.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1) The outer teeth arranged on the edges of the first connection hole and the second connection hole of the utility model can pierce the surface coating and connect to the inside through the force of tightening the bolts, so as to achieve the purpose of fixed connection between the equipment grounding casing and the equipment structural parts and the grounding bar, and realize that the insulating structural parts can also be safely grounded without destroying the insulation effect; while improving the connection stability between the grounding bar and the grounding casing and the equipment structural parts, it also ensures good connectivity among the three, ensuring that the current can safely flow into the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of a grounding bar structure provided by the utility model.

[0018] Figure 2 This is a second three-dimensional structural schematic diagram of a grounding bar structure provided by the utility model.

[0019] Figure 3 The utility model provides a side view of a grounding bar structure.

[0020] Figure 4 A top view of a grounding bar structure provided by the utility model.

[0021] Figure 5 A bottom view of a grounding bar structure provided by the utility model.

[0022] In the figure: 1-substrate, 11-front side, 12-back side, 13-first connection hole, 14-second connection hole, 2-external teeth, 3-internal teeth, 4-convex part, 5-groove part. DETAILED DESCRIPTION

[0023] In order to make the technical solution and advantages of the utility model clearer, the utility model and its beneficial effects will be further described in detail below in combination with specific implementation methods and drawings of the specification, but the implementation methods of the utility model are not limited thereto.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0026] like Figures 1 to 5 As shown, a grounding bar structure includes a substrate 1, the substrate 1 is provided with at least two connection holes, the two connection holes are respectively a first connection hole 13 and a second connection hole 14, the first connection hole 13 is used to connect a structural member to be grounded in the device, and the second connection hole 14 is used to connect a grounding shell of the device, and the edges of one side holes of the first connection hole 13 and the second connection hole 14 are provided with external teeth 2, and the external teeth 2 protrude toward the outside along the thickness direction of the substrate 1.

[0027] Specifically, the first connection hole 13 is located on the left part of the substrate 1, and the second connection hole 14 is located on the right part of the substrate 1. When the electrical equipment needs to be grounded, a bolt is first passed through the first connection hole 13, and a nut is connected to the lower end of the bolt. The structural part of the electrical equipment that needs to be grounded is placed between the substrate 1 and the nut, or wrapped around the bolt, and then the bolt is tightened to fasten the structural part to the substrate 1 through the nut, so that the structural part of the electrical equipment is connected to the substrate 1; the second connection hole 14 and the grounding shell of the electrical equipment are also connected by a bolt, and the bolt passes through the second connection hole 14 and is tightened to be threadedly connected and fixed to the grounding shell, so that all the structural parts that need to be grounded in the equipment are connected to the grounding shell of the equipment through the grounding bar. After the grounding shell of the equipment is connected to the ground wire, a reliable grounding system is formed between the grounding shell, the grounding bar and the equipment structural parts connected to the grounding bar. In addition, the first connection hole 13 and the second connection hole 14 are both provided with external teeth 2 on the edge of the hole portion located on the lower surface of the substrate 1. If the equipment structure to be grounded and the part of the equipment grounding shell are coated, the external teeth 2 provided on the edge of the hole portion of the first connection hole 13 and the second connection hole 14 will pierce the surface coating and connect with the inside through the force of tightening the bolts, so as to achieve the purpose of fixed connection between the equipment grounding shell and the equipment structure and the grounding bar, so that the insulated structure can also be safely grounded without destroying the insulation effect; while improving the connection stability between the grounding bar and the grounding shell and the equipment structure, it also ensures good connectivity among the three, ensuring that the current can safely flow into the ground.

[0028] In some embodiments of the present application, the first connection hole 13 has a plurality of external teeth 2 at the edge of the hole portion, and the plurality of external teeth 2 are arranged at intervals along the edge of the hole portion of the first connection hole 13 and are distributed in a circumferential manner. Specifically, the first connection hole 13 has eight external teeth 2 arranged at the edge of the hole portion, and the eight external teeth 2 are arranged in a circumferential manner along the lower edge of the first connection hole 13 and are evenly spaced, thereby increasing the contact area and connection stability between the substrate 1 and the device structure, and preventing the surface coating of the device structure from affecting the connection effect with the substrate 1. In other embodiments, the number of external teeth 2 at the edge of the hole portion of the first connection hole 13 can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0029] In some embodiments of the present application, the second connection hole 14 also has a plurality of external teeth 2 at the edge of the hole portion, and the plurality of external teeth 2 are arranged at intervals along the edge of the hole portion of the second connection hole 14 and are distributed in a circumferential manner. Specifically, the second connection hole 14 has four external teeth 2 arranged at the edge of the hole portion, and the four external teeth 2 are arranged in a circumferential manner along the lower edge of the second connection hole 14 and are evenly spaced, thereby increasing the contact area and connection stability between the substrate 1 and the grounding shell of the equipment, and preventing the surface coating of the grounding shell of the equipment from affecting the connection effect with the substrate 1. In other embodiments, the number of external teeth 2 at the edge of the hole portion of the second connection hole 14 can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0030] In some embodiments of the present application, the inner wall of the second connection hole 14 is provided with a plurality of inner teeth 3, and the plurality of inner teeth 3 are evenly spaced and distributed in a circumferential manner along the inner wall of the second connection hole 14, and the inner teeth 3 are all facing the center of the second connection hole 14. Specifically, the second connection hole 14 is provided with a plurality of inner teeth 3, and the plurality of inner teeth 3 are distributed in a circumferential manner and are all facing the center of the second connection hole 14; after the bolt passes through the second connection hole 14, the plurality of inner teeth 3 abut against the bolt, which is used to clamp the inserted bolt to a certain extent, prevent the bolt from falling easily, and improve the stability after the bolt is tightened; the number of inner teeth 3 in the second connection hole 14 is specifically four, and the four inner teeth 3 are four teeth opposite in the second connection hole 14. In other embodiments, the number of inner teeth 3 in the second connection hole 14 can be set to 2, 3, 4, 5, 6, 7 or 8.

[0031] In some embodiments of the present application, the substrate 1 includes a front side 11 and a back side 12, the external teeth 2 are all located on the back side 12 of the substrate 1, the back side 12 of the substrate 1 is at least partially raised to form a convex portion 4, the second connection hole 14 passes through the convex portion 4, and the external teeth 2 at the edge of the hole portion of the second connection hole 14 are all protruding from the surface of the convex portion 4. Specifically, the convex portion 4 is located on the right part of the back side 12 of the substrate 1, and the lower end surface of the convex portion 4 is a horizontal plane. The convex portion 4 is connected to the surface of the grounding shell of the equipment through contact, ensuring that the substrate 1 and the grounding shell of the equipment can be in good contact. In addition, a groove matching the convex portion 4 can be opened at the corresponding position of the grounding shell of the equipment, and the convex portion 4 is positioned by matching the groove to improve the convenience of the substrate 1 and the grounding shell of the equipment.

[0032] In some embodiments of the present application, the portion of the front surface 11 of the substrate 1 corresponding to the convex portion 4 is recessed to form a groove portion 5. Specifically, the groove is provided to accommodate the head of the bolt inserted into the second connection hole 14, and the bottom of the groove is parallel to the lower end surface of the convex portion 4, ensuring that after the bolt is tightened, the lower end surface of the convex portion 4 can be fully in contact with the grounding shell of the equipment.

[0033] In some embodiments of the present application, the inner wall of the first connection hole 13 is also surrounded and evenly spaced with a plurality of inner teeth 3. Specifically, by also providing the inner wall of the first connection hole 13 with inner teeth 3, the teeth of the plurality of inner teeth 3 are opposite to each other, and abut against the bolt inserted into the first connection hole 13, the inserted bolt is clamped, and the bolt is prevented from falling easily, thereby improving the stability after the bolt is tightened; the number of inner teeth 3 in the first connection hole 13 is specifically four. In other embodiments, the number of inner teeth 3 in the first connection hole 13 can be set to 2, 3, 4, 5, 6, 7 or 8.

[0034] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A grounding bar structure, characterized in that: It includes a base plate, which has at least two connection holes, the two connection holes are respectively a first connection hole and a second connection hole, the first connection hole is used to connect a structural member to be grounded in the device, and the second connection hole is used to connect a grounding shell of the device, and the edges of one side holes of the first connection hole and the second connection hole are both provided with external teeth, and the external teeth protrude toward the outside along the thickness direction of the base plate.

2. The grounding bar structure according to claim 1, characterized in that: The outer teeth at the edge of the hole portion of the first connection hole are multiple, and the multiple outer teeth are arranged at intervals along the edge of the hole portion of the first connection hole and are distributed in a circumferential manner.

3. The grounding bar structure according to claim 2, characterized in that: The outer teeth at the edge of the hole portion of the second connecting hole also have a plurality of teeth, and the plurality of outer teeth are arranged at intervals along the edge of the hole portion of the second connecting hole and are distributed in a circumferential manner.

4. The grounding bar structure according to claim 3, characterized in that: The inner wall of the second connecting hole is provided with a plurality of inner teeth, the plurality of inner teeth are evenly spaced and distributed in a circumferential manner along the inner wall of the second connecting hole, and the inner teeth are all oriented toward the center position of the second connecting hole.

5. The grounding bar structure according to claim 4, characterized in that: The substrate includes a front side and a back side, the external teeth are all located on the back side of the substrate, the back side of the substrate is at least partially raised to form a convex portion, the second connecting hole passes through the convex portion, and the external teeth at the edge of the second connecting hole are all protruding from the surface of the convex portion.

6. The grounding bar structure according to claim 5, characterized in that: A portion of the front surface of the substrate corresponding to the convex portion is recessed to form a groove portion.

7. The grounding bar structure according to claim 5, characterized in that: The inner wall of the first connecting hole is also surrounded by a plurality of inner teeth that are evenly spaced.

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