Electrical grounding structure

Abstract

The utility model provides an electrical grounding structure which comprises a bottom shell, and the bottom shell is provided with a wiring hole used for accommodating a ground wire and a shaft hole used for installing a shaft. The ground wire is provided with an insulating sheath, the insulating sheath is stripped at two ends of the ground wire so as to expose a wire core with a certain length, and the wire core with one exposed end is arranged in the wiring hole so as to be electrically connected with electrical equipment; and the shaft is arranged in the shaft hole and is used for pressing a wire core, exposed in the wiring hole, of the ground wire. The grounding wire has the advantages of being compact in structure, convenient to install, good in conductive performance and high in reliability, can meet higher requirements of modern electrical equipment on grounding wires, and has wide application prospects and market value in the field of electrical equipment grounding.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to an electrical grounding structure. Background Technology

[0002] In existing electrical equipment, grounding wires are an indispensable part of ensuring safe operation. The main function of a grounding wire is to quickly conduct leakage current or fault current from electrical equipment to the earth, thereby preventing harm to people or equipment. However, there are some obvious problems with existing grounding wire connection methods.

[0003] Currently, common grounding wire connection methods mainly include screwing in the wire core and screwing in the terminal lug. While both methods can achieve the connection between the grounding wire and electrical equipment to a certain extent, they both have the problem of occupying a lot of space. Especially in places with dense electrical equipment or limited space, this bulky connection method will greatly limit the layout and installation flexibility of the equipment.

[0004] Furthermore, tightening the screws on the wire core can easily cause it to break. Since the wire core is typically made of multiple strands of fine copper wire twisted together, its bending resistance is relatively weak. During the screw-on process, improper operation or excessive tightening force can easily cause the wire core to break or be damaged, thus affecting the conductivity and reliability of the grounding wire.

[0005] Therefore, there is an urgent need for a new type of electrical grounding structure to solve the problems of large space occupation and easy breakage of the wire core in the existing grounding wire connection method. Utility Model Content

[0006] In order to solve the problems existing in the prior art, this utility model provides an electrical grounding structure that is compact, easy to install, has good conductivity and high reliability, and can meet the higher requirements of modern electrical equipment for grounding wires.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] An electrical grounding structure, comprising:

[0009] The bottom shell is provided with a wiring hole for accommodating a ground wire and a shaft hole for mounting a shaft.

[0010] The ground wire has an insulating outer sheath, which is stripped at both ends of the ground wire to expose a certain length of wire core, wherein one end of the exposed wire core is placed in the wiring hole for electrical connection with electrical equipment;

[0011] A shaft is disposed within the shaft hole and is used to press the exposed wire core of the ground wire in the wiring hole.

[0012] A further option is to provide a countersunk hole on the wiring hole, which is used to accommodate the exposed end of the ground wire core or to cooperate with the ground wire connection component.

[0013] A further option is to wrap the ground wire with a layer of rubber to provide insulation and / or sealing between the ground wire and the countersunk hole.

[0014] A further improvement is that when the ground wire core is inserted into the wiring hole, the rubber sheath is tightly wrapped by the countersunk hole to fix the ground wire and prevent it from swaying during use, thereby avoiding the ground wire core being cut by the edge of the wiring hole.

[0015] A further solution is to use a knurling process to treat the head of the shaft to form a knurled structure, and the knurled shaft head is pressed tightly into the shaft hole to enhance the connection strength and stability between the shaft and the shaft hole.

[0016] A further solution is that when the shaft is pressed in along the shaft hole, the knurled structure of the shaft head is embedded in the inner wall of the shaft hole to form a mechanical connection, while the middle part of the shaft squeezes and presses the core of the ground wire inserted therein to provide additional fixing force.

[0017] A further embodiment is that the inner wall of the shaft hole is provided with a protrusion or groove structure that matches the knurled structure of the shaft head, and the protrusion or groove structure is tightly fitted with the knurled structure of the shaft head.

[0018] A further solution is to seal the seams of the bottom shell with sealant or gaskets.

[0019] A further improvement is that the bottom shell is made of heat-dissipating material and its surface is provided with heat dissipation fins or heat dissipation holes.

[0020] Therefore, compared with the prior art, this utility model has the following beneficial effects:

[0021] Compact structure and space-saving: The electrical grounding structure of this utility model adopts an innovative design, making the overall structure more compact. Compared with the traditional method of screwing in the wire core or tightening the terminal lugs, this utility model greatly reduces the space occupied by the grounding wire connection, providing greater flexibility for the layout and installation of electrical equipment.

[0022] Preventing wire core breakage and improving reliability: This invention effectively avoids the problem of wire core breakage in traditional grounding wire connection methods through optimized shaft and shaft hole design and a specific grounding wire fixing method. The knurled design of the shaft head and the protrusion or groove structure of the inner wall of the shaft hole fit tightly together, ensuring that the grounding wire core will not break or be damaged under pressure, thereby improving the conductivity and reliability of the grounding wire.

[0023] Easy installation and improved efficiency: The electrical grounding structure of this utility model is easy to install, requiring no complicated operating steps or tools. The shaft can be easily pressed into the shaft hole, and a firm connection is formed with the protrusions or grooves on the inner wall of the shaft hole through knurling. This design not only improves installation efficiency but also reduces the error rate during installation.

[0024] Excellent heat dissipation performance ensures stable operation: The bottom shell of this invention is made of a material with excellent heat dissipation properties, such as aluminum alloy, and has heat dissipation fins or holes on its surface. This design increases the heat dissipation area, improves the heat dissipation performance of the electrical grounding structure, and ensures stable operation of electrical equipment under long-term operation or high-power conditions.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structural principle of an embodiment of an electrical grounding structure according to this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] See Figure 1 The electrical grounding structure involved in this embodiment includes:

[0029] The bottom shell 10 is provided with a wiring hole 21 for accommodating the ground wire 20 and a shaft hole 31 for mounting the shaft 30.

[0030] Ground wire 20 has an insulating outer sheath, which is stripped at both ends of the ground wire 20 to expose a certain length of wire core 22. One end of the exposed wire core 22 is placed in the wiring hole 21 for electrical connection with electrical equipment.

[0031] Shaft 30 is disposed in shaft hole 31 and is used to press the wire core 22 of ground wire 20 exposed in wiring hole 21.

[0032] In this embodiment, the wiring hole 21 is provided with a countersunk hole 24, which is used to accommodate the end of the exposed core 22 of the ground wire 20 or to cooperate with the connecting parts of the ground wire 20, so as to further enhance the fixed stability of the ground wire 20 in the wiring hole 21 and the reliability of the electrical connection.

[0033] In this embodiment, the ground wire 20 is wrapped with a layer of rubber 23 to provide insulation and / or sealing between the ground wire 20 and the countersunk hole 24, while enhancing the fixation stability of the ground wire 20 within the countersunk hole 24.

[0034] In this embodiment, when the core 22 of the ground wire 20 is inserted into the wiring hole 21, the rubber 23 is tightly wrapped by the countersunk hole 24 to fix the ground wire 20 and prevent it from swaying during use, thereby avoiding the core 22 of the ground wire 20 being cut by the edge of the wiring hole 21.

[0035] In this embodiment, the head of the shaft 30 is knurled to form a knurled structure 32, and the knurled head of the shaft 30 is pressed tightly into the shaft hole 31 to enhance the connection strength and stability between the shaft 30 and the shaft hole 31.

[0036] In this embodiment, when the shaft 30 is pressed in along the shaft hole 31, the knurled structure 32 at the head of the shaft 30 is embedded in the inner wall of the shaft hole 31 to form a mechanical connection. At the same time, the middle part of the shaft 30 squeezes and presses the wire core 22 of the ground wire 20 inserted therein to provide additional fixing force and effectively prevent the ground wire 20 from being pulled out during use.

[0037] In this embodiment, the inner wall of the shaft hole 31 is provided with a protrusion or groove structure that matches the knurled structure 32 of the shaft head 30, and the protrusion or groove structure is tightly fitted with the knurled structure 32 of the shaft head 30.

[0038] In this embodiment, the seams of the bottom shell 10 are sealed with sealant or gasket to prevent dust, moisture and other impurities from entering the interior of the bottom shell 10 and affecting the reliability and safety of the electrical connection.

[0039] In this embodiment, the bottom shell 10 is made of a heat-dissipating material, and its surface is provided with heat dissipation fins or heat dissipation holes to increase the heat dissipation area, improve the heat dissipation performance of the electrical grounding structure, and ensure the stable operation of the electrical equipment under long-term operation or high-power conditions. For electrical equipment that operates for extended periods or at high power, the bottom shell 10 can be made of a material with good heat dissipation performance (such as aluminum alloy), and its surface can be provided with heat dissipation fins or heat dissipation holes to improve the heat dissipation performance of the electrical grounding structure.

[0040] Alternatively, as another fixing method, the electrical grounding structure of this utility model can also be fixed with screws. A threaded hole matching the screw is provided on the bottom shell 10. The screw is screwed into the threaded hole until its end presses against the ground wire core. The tightening effect of the screw also ensures the fixation and stability of the ground wire core.

[0041] In summary, the electrical grounding structure of this embodiment exhibits significant advantages over existing technologies. Its compact structure saves space, allowing for more flexible layout and installation in environments with dense electrical equipment or limited space. Furthermore, the optimized design effectively prevents the conductor 22 from breaking during use, greatly improving the conductivity and reliability of the grounding wire 20. In addition, this structure is easy to install, improving installation efficiency and reducing the error rate. Moreover, the base shell 10 is made of a material with excellent heat dissipation properties, ensuring stable operation of the electrical equipment under prolonged working or high-power conditions.

[0042] In practical applications, the working principle of the electrical grounding structure in this embodiment is as follows:

[0043] Ground wire 20 core 22 inserted into wiring hole 21: First, insert the ground wire 20 core 22 into the wiring hole 21 provided on the bottom shell 10. Core 22 is the part of the ground wire 20 responsible for conducting current, so it is necessary to ensure that it forms a good electrical connection with the electrical equipment.

[0044] Rubber 23 is wrapped by countersunk hole 24: The ground wire 20 is wrapped with a layer of rubber 23. After the ground wire 20 is inserted into the wiring hole 21, this rubber 23 is tightly wrapped by the countersunk hole 24 on the bottom shell 10. The countersunk hole 24 is designed not only to fix the ground wire 20, but also to prevent the ground wire 20 from swaying during use, which could cause the wire core 22 to be cut by the edge of the wiring hole 21. In addition, the presence of rubber 23 also plays a role in insulation and protection.

[0045] Shaft 30 pressed into shaft hole 31: Next, shaft 30 is pressed into shaft hole 31 on bottom shell 10. Shaft 30 is a key component in this electrical grounding structure, which plays the role of pressing the core 22 of ground wire 20.

[0046] Knurling and insertion into the shaft hole 31: The head of the shaft 30 is knurled, forming a knurled pattern. When the shaft 30 is pressed into the shaft hole 31, the knurled pattern fits tightly into the protrusions or grooves on the inner wall of the shaft hole 31, forming a strong mechanical connection. This design ensures the stability of the shaft 30 within the shaft hole 31 and prevents the shaft 30 from loosening or rotating during use.

[0047] The middle part of the shaft 30 presses and clamps the wire core 22: In addition to the knurling of the head of the shaft 30 fitting into the shaft hole 31, the middle part of the shaft 30 also presses and clamps the wire core 22 of the ground wire 20 inserted into the wiring hole 21. This design provides additional fixing force and effectively prevents the ground wire 20 from being pulled out or loosened during use.

[0048] In summary, the electrical grounding structure of this utility model, through its ingenious design and working principle, achieves a firm fixation and protection for the ground wire 20 core 22, ensuring the grounding reliability and safety of electrical equipment.

[0049] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An electrical grounding structure, characterized in that, include: The bottom shell is provided with a wiring hole for accommodating a ground wire and a shaft hole for mounting a shaft. The ground wire has an insulating outer sheath, which is stripped at both ends of the ground wire to expose a certain length of wire core, wherein one end of the exposed wire core is placed in the wiring hole for electrical connection with electrical equipment; A shaft is disposed within the shaft hole and is used to press the exposed wire core of the ground wire in the wiring hole.

2. The electrical grounding structure according to claim 1, characterized in that: The wiring hole is provided with a countersunk hole, which is used to accommodate the exposed end of the ground wire core or to cooperate with the ground wire connection component.

3. The electrical grounding structure according to claim 2, characterized in that: The ground wire is wrapped with a layer of rubber to provide insulation and / or sealing between the ground wire and the countersunk hole.

4. The electrical grounding structure according to claim 3, characterized in that: When the core of the ground wire is inserted into the terminal hole, the rubber sheath is tightly wrapped by the countersunk hole.

5. The electrical grounding structure according to claim 1, characterized in that: The head of the shaft is knurled to form a knurled structure, and the knurled shaft head is pressed tightly into the shaft hole.

6. The electrical grounding structure according to claim 5, characterized in that: The inner wall of the shaft hole is provided with a protrusion or groove structure that matches the knurled structure of the shaft head, and the protrusion or groove structure fits tightly into the knurled structure of the shaft head.

7. The electrical grounding structure according to any one of claims 1 to 6, characterized in that: The seams of the bottom shell are sealed with sealant or gasket.

8. The electrical grounding structure according to any one of claims 1 to 6, characterized in that: The bottom shell is made of heat dissipation material, and its surface is provided with heat dissipation fins or heat dissipation holes.

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