Grounding sheet

Abstract

The utility model discloses a grounding piece, which comprises a base part and a contact part, the base part is conductively connected with the contact part, the base part comprises a plurality of fixing areas and a plurality of tooth parts, each fixing area is provided with a first through hole and is provided with a contact surface, the plurality of tooth parts are circumferentially arranged in the fixing areas, and the tooth parts protrude out of the contact surface. Compared with the prior art, the plurality of tooth parts are arranged in the circumferential direction of the fixing area, when the fixing area is in contact connection with the electrical component, a screw rod needs to penetrate through the first through hole and the electrical component, the electrical component and the fixing area are connected together through matching of a nut and the screw rod, the electrical component can extrude the tooth parts to enable the tooth parts to be almost flush with the contact surface, and therefore the electrical component can be fixed. The electrical component can be in contact with the fixing area and the tooth part of the base part, so that the contact area between the electrical component and the fixing area is increased, the connection tightness is improved, the use of a gasket is saved, and the cost is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a grounding plate. Background Technology

[0002] Grounding plates are important safety components for electrical equipment. They ensure a safe connection between the equipment and the ground, preventing faults such as leakage and arcing, and guaranteeing operational safety.

[0003] If the grounding plate does not make sufficient contact with the electrical equipment, or if the grounding plate does not make sufficient contact with the grounding wire, the current will not be able to flow smoothly into the ground, resulting in leakage and endangering personal safety.

[0004] Existing technologies increase the contact area and connection tightness by adding shims to make the grounding plate more fully connected to electrical equipment or grounding wires, but this also increases the cost. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a grounding plate.

[0006] The present invention discloses a grounding plate, comprising: a base and a contact portion, wherein the base and the contact portion are electrically connected, the base includes several fixed areas and several teeth, a first through hole is provided on the fixed area and a contact surface is provided, and several teeth are circumferentially arranged in the fixed area and protrude from the contact surface.

[0007] Preferably, the toothed part includes a fixed block and an inclined block, one end of the fixed block is connected to the inclined block, the other end of the fixed block is connected to the fixed area, and the inclined block protrudes from the contact surface.

[0008] Preferably, the fixed area has multiple receiving areas, with each tooth corresponding to one receiving area.

[0009] Preferably, the base further includes a positioning protrusion, which is disposed on the side of the fixing area opposite to the contact surface.

[0010] Preferably, the contact portion has a second through hole, and a grounding rod is connected in the second through hole.

[0011] Preferably, the base further includes a connecting area, which is connected to the fixing area, and a plurality of first fixing holes are provided on the connecting area.

[0012] Preferably, the contact portion is further provided with a plurality of second fixing holes, which are arranged adjacent to the second through holes.

[0013] Preferably, it further includes an extension arm, the two ends of which are respectively connected to the base and the contact portion.

[0014] Preferably, the extension arm has a first plate and a second plate connected together, the first plate being connected to the base 1, the second plate being connected to the contact portion, and there is an included angle between the first plate and the second plate.

[0015] Preferably, the base and the contact portion are integrally formed.

[0016] The beneficial effect of this utility model is that, compared with the prior art, by setting multiple teeth around the fixed area, when the fixed area is in contact with the electrical component, a screw needs to be used to pass through the first through hole and the electrical component, and the electrical component is connected to the fixed area by the cooperation of the nut and the screw. In this way, the electrical component will squeeze the teeth and make them almost flush with the contact surface. In this way, the electrical component can contact the fixed area and teeth of the base, increasing the contact area between the two and improving the tightness of the connection, saving the use of gaskets, and thus reducing costs. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a diagram showing the usage status of the grounding plate in the embodiment;

[0019] Figure 2 This is one schematic diagram of the grounding plate in the embodiment;

[0020] Figure 3 This is an enlarged view of part A in the embodiment;

[0021] Figure 4 This is another schematic diagram of the grounding plate in the embodiment.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Base; 11. Fixing area; 111. First through hole; 112. Contact surface; 113. Receiving area; 12. Tooth; 121. Fixing block; 122. Inclined block; 13. Positioning protrusion; 14. Connecting area; 141. First fixing hole;

[0024] 2. Contact part; 21. Second through hole; 22. Second fixing hole;

[0025] 3. Extension arm; 31. First plate; 32. Second plate;

[0026] 4. Electrical components; 5. Grounding rod. Detailed Implementation

[0027] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0028] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a diagram showing the usage status of the grounding plate in the embodiment. Figure 2 This is a schematic diagram of one of the grounding plates in the embodiment. This embodiment discloses a grounding plate including a base 1 and a contact portion 2. The base 1 includes several fixing areas 11 and multiple teeth 12. The multiple teeth 12 are arranged circumferentially in the fixing areas 11. The fixing areas 11 have a first through hole 111 and a contact surface 112. The teeth 12 are higher than the contact surface 112, that is, the teeth 12 protrude relative to the fixing areas 11 in the positive direction of the Z-axis. The base 1 and the contact portion 2 are electrically connected.

[0030] Specifically, the number of fixing areas 11 can be one, two, or more, depending on actual needs, and each fixing area 11 has a first through hole 111. Furthermore, the fixing area 11 is disc-shaped. In this example, the fixing area 11 has a first through hole 111 in the center, the first through hole 111 is circular, and three teeth 12 are provided, evenly distributed around the outer periphery of the fixing area 11.

[0031] In practical applications, the electrical component 4 is placed on the contact surface 112 of the fixing area 11. A screw is passed through the first through hole 111 and the electrical component 4, and a nut is used to connect the electrical component 4 to the fixing area 11 through the screw. The electrical component 4 presses against the teeth 12, making them almost flush with the contact surface 112, thus allowing the electrical component to contact the fixing part and the teeth of the base. The grounding wire is connected to the contact part 2, meaning the grounding wire connects the outer casing of the electrical component 4 to the earth through the contact part 2. This design increases the contact area between the electrical component 4 and the fixing area 11 by adding the teeth 12, improving the connection tightness, eliminating the need for gaskets, and thus reducing usage costs.

[0032] Specifically, review Figure 2 As shown, in this embodiment, the toothed portion 12 includes a fixing block 121 and an inclined block 122. One end of the fixing block 121 is connected to the inclined block 122, and the other end of the fixing block 121 is connected to the fixing area 11. The inclined block 122 protrudes from the contact surface 112. In this example, before the electrical component 4 contacts the inclined block 122, which is higher than the contact surface 112, the electrical component 4 is driven to press towards the fixing area 11 by using a bolt passing through the first through hole 111. This presses the inclined block 122 to the same height as the contact surface 112, making the electrical component 4 fit snugly against the contact surface 112, that is, the electrical component 4 is more tightly connected to the fixing area 11.

[0033] Further, please refer to Figure 3 As shown, Figure 3 This is an enlarged view of part A. In this embodiment, the fixing area 11 has multiple receiving areas 113, and each tooth 12 is correspondingly disposed in one of the receiving areas 113. In this example, the receiving area 113 on the fixing area 11 is a right-angled area, while the tooth 12 is a triangular prism shape, and the tooth 12 matches the receiving area 113. Alternatively, other shapes of receiving areas 113 can be formed in the fixing area 11, and the tooth 12 can be placed in the receiving area 113 with a matching shape. When the tooth 12 is pressed by the electrical component 4 during installation, it moves away from the electrical component 4 and will not be stuck by other parts of the fixing area 11, thus preventing the electrical component 4 from being unable to fit tightly with the fixing area 11.

[0034] Furthermore, review Figure 4As shown, in this embodiment, the base 1 also includes a positioning protrusion 13, which is disposed on the side of the fixing area 11 facing away from the contact surface 112. When the fixing area 11 and the electrical component 4 are fixedly connected to the insulating base, the positioning protrusion 13 can first find the position where the fixing area 11 and the electrical component 4 need to be fixed on the insulating base, that is, the positioning protrusion 13 can be accurately placed in the corresponding position on the insulating base. Without the positioning protrusion 13, that is, the side of the fixing area 11 that is in contact with the insulating base is flat, it is easy for slippage to occur when fixing the fixing area 11 and the electrical component 4. However, the positioning protrusion 13 can be limited by the corresponding position on the insulating base, that is, the fixing area 11 is less likely to slip relative to the insulating base, and thus the fixing area 11 and the electrical component 4 are more firmly fixed and less likely to loosen.

[0035] Furthermore, review Figure 1 As shown, in this embodiment, the contact portion 2 has a second through hole 21, which is used to connect the grounding rod 5. That is, the grounding rod 5 passes through the second through hole 21 and is fixedly connected to the contact portion 2. Specifically, the grounding rod 5 is an existing copper rod, or it can be made of materials with good conductivity such as galvanized steel pipe, copper-clad steel, and copper-plated steel. The grounding rod 5 is fixedly connected to the fixed area 11 through the electrical component 4, and the outer shell of the electrical component 4 is connected to the ground, effectively reducing the potential difference and thus ensuring the personal safety of the operator.

[0036] Furthermore, review Figure 4 As shown, in this embodiment, the base 1 further includes a connecting area 14, which is connected to the fixing area 11, i.e., the connecting area 14 and the fixing area 11 are arranged adjacent to each other. The connecting area 14 has several first fixing holes 141. Specifically, the number of first fixing holes 141 can be one, two, or more, depending on the actual application requirements. In this example, there is one first fixing hole 141, positioned parallel to the first through hole 111 of the fixing area 11. Screws or bolts are passed through the first fixing hole 141 and tightened onto the insulating base to reinforce the stability of the base 1, making it less prone to movement when fixed to the insulating base.

[0037] Furthermore, in this embodiment, the contact portion 2 is also provided with a plurality of second fixing holes 22. Specifically, the number of second fixing holes 22 can be one, two, or more. When there is one second fixing hole 22, it can be arranged side by side with the second through hole 21 on the contact portion 2; when there are two second fixing holes 22, the two second fixing holes 22 can be arranged side by side on the contact portion 2, or they can be arranged circumferentially with the second through hole 21 on the contact portion 2, and the specific arrangement is set according to actual needs. The second fixing holes 22 can be fixed and tightened by screws or bolts passing through the second fixing holes 22, thereby strengthening the stability of the base 1 and making it difficult for the contact portion 2 to move when fixed on the insulating base.

[0038] Furthermore, in this embodiment, the grounding plate also includes an extension arm 3, one end of which is connected to the base 1, and the other end of which is connected to the contact portion 2. Further, the extension arm 3 has a connected first plate 31 and a second plate 32. The first plate 31 is connected to the base 1, and the second plate 32 is connected to the contact portion 2, with an included angle between the first plate 31 and the second plate 32. Specifically, the included angle between the first plate 31 and the second plate 32 can be set as needed to allow the grounding plate to conform to the shape of components such as an insulating base. In this example, the first plate 31 of the extension arm 3 forms a 90-degree chamfer to connect to the base 1, and the second plate 32 also forms a 90-degree chamfer to connect to the contact portion 2, meaning the base 1 and the contact portion 2 are parallel to each other. Of course, in other application scenarios, the included angle and positional relationship between the first plate 31 and the second plate 32 of the extension arm 3 will be adjusted accordingly to suit the actual application scenario.

[0039] Further, please refer to Figure 4 As shown, Figure 4 This is another schematic diagram of the grounding plate in the embodiment. In this embodiment, the base 1 and the contact 2 are integrally formed. Specifically, the base 1 and the contact 2 are existing copper sheets, or galvanized sheets can be used. This design reduces the number of steps and time in the assembly process, improves production efficiency, and also reduces welding and assembly steps, thereby improving the stability and durability of the overall structure and reducing production costs.

[0040] In practical applications, the positioning protrusion 13 of the base 1 is used to locate the corresponding position of the insulating base. The positioning protrusion 13 can be limited by the corresponding position of the insulating base, making it difficult for the fixed area 11 to slide relative to the insulating base. Then, the electrical component 4 is placed on the fixed area 11. The electrical component 4 first contacts the inclined block 122 of the toothed part 12 which is higher than the contact surface 112. A screw is used to pass through the first through hole 111 and the electrical component 4. The nut and the screw work together to drive the electrical component 4 to be pressed towards the fixed area 11, thereby pressing the inclined block 122 to the same height as the contact surface 112. In this way, the electrical component 4 can contact the fixed area 11 and the toothed part 12 of the base 1, increasing the contact area between them and improving the tightness of the connection. It also saves the use of gaskets and reduces costs. The connection between the base 1 and the insulating base is secured by fixing the first fixing hole 141 with screws. The angle between the first plate 31 and the second plate 32 of the extension arm 3 can be set as needed to make the contact part 2 fit into the corresponding fixed position of the insulating base. The contact part 2 is secured on the insulating base by fixing the second fixing hole 22 with screws. A grounding rod 5 is fixedly connected in the second through hole 21. The grounding rod 5 can be connected to the fixing area 11 of the electrical component 4 and the contact part 2, thereby connecting the outer shell of the electrical component 4 to the ground, effectively reducing the potential difference, and thus ensuring the personal safety of the operator.

[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A grounding plate, characterized in that, include: The base (1) and the contact (2) are electrically connected. The base (1) includes a plurality of fixing areas (11) and a plurality of teeth (12). The fixing areas (11) are provided with a first through hole (111) and have a contact surface (112). The plurality of teeth (12) are circumferentially disposed in the fixing areas (11) and the teeth (12) protrude from the contact surface (112).

2. The grounding plate according to claim 1, characterized in that, The tooth (12) includes a fixing block (121) and an inclined block (122). One end of the fixing block (121) is connected to the inclined block (122), and the other end of the fixing block (121) is connected to the fixing area (11). The inclined block (122) protrudes from the contact surface (112).

3. The grounding plate according to claim 1, characterized in that, The fixed area (11) has multiple receiving areas (113), and each tooth (12) is placed in one of the receiving areas (113).

4. The grounding plate according to claim 1, characterized in that, The base (1) also includes a positioning protrusion (13), which is disposed on the side of the fixing area (11) opposite to the contact surface (112).

5. The grounding plate according to claim 1, characterized in that, The contact part (2) has a second through hole (21), and a grounding rod (5) is connected in the second through hole (21).

6. The grounding plate according to claim 1, characterized in that, The base (1) also includes a connecting area (14), which is connected to the fixing area (11), and the connecting area (14) has a plurality of first fixing holes (141).

7. The grounding plate according to claim 5, characterized in that, The contact portion (2) is also provided with a plurality of second fixing holes (22), which are arranged adjacent to the second through hole (21).

8. The grounding plate according to claim 1, characterized in that, It also includes an extension arm (3), the two ends of which are connected to the base (1) and the contact portion (2), respectively.

9. The grounding plate according to claim 8, characterized in that, The extension arm (3) has a first plate (31) and a second plate (32) connected together. The first plate (31) is connected to the base (1), and the second plate (32) is connected to the contact portion (2). There is an angle between the first plate (31) and the second plate (32).

10. The grounding plate according to claim 1, characterized in that, The base (1) and the contact portion (2) are integrally formed.

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