A connecting structure of a grounding tab

CN224733187UActive Publication Date: 2026-09-08NINGBO JINCHAO ELECTRIC CO LTD
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Patent Information

Application Number
CN202521817573.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-09-08
Estimated Expiration
2035-08-26

AI Technical Summary

Technical Problem

[0003]现有的接线端子与圆形预绝缘端头接地片的连接方式主要以螺栓紧固或者通过工具压接进行连接,螺栓紧固需借助扳手等工具,安装拆卸繁琐,效率低下,且在振动环境中易松动导致接触不良,长期使用还会因螺纹锈蚀增加维护难度,同时,通过工具压接虽连接牢固,但属于不可逆连接,后期如需更换接地片或检修,需破坏连接结构,不仅操作复杂,还会造成部件损耗,同时对压接工具和操作精度要求较高,易因压接不当影响导电性能

Benefits of technology

[0018] This invention guides the elastic deformation of the card plate through the inclined plate in the connecting assembly, allowing it to pop out and interlock with the slot. Combined with reverse pulling, a stable connection can be achieved without additional tools, significantly improving installation efficiency. Furthermore, the double locking structure of the protrusion and the fixing groove effectively resists vibration and external interference, preventing loosening and ensuring a long-term reliable connection between the grounding plate and the terminal block. At the same time, the conductive material card plate and the slot are in close contact through an interference fit, reducing contact gaps and resistance, and the absence of insulating materials ensures smooth current conduction.

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Abstract

The utility model belongs to the electrical connection technical field, specifically disclose a connecting structure of grounding blade. The utility model discloses grounding blade body, ground wire and terminal, and the terminal is connected in one end of ground wire, and the terminal is inserted with the one side of grounding blade body, and the connecting assembly is established between grounding blade body and terminal, and the elastic deformation of guide clamping plate is guided in the inclined plate of connecting assembly, and the interference fit of springing out with the clamping groove, and the stable connection can be completed without additional tools in combination reverse tension operation, and the installation efficiency is greatly promoted, and through the double locking structure of boss and fixed groove, vibration and external force interference can be effectively resisted, and loosening is avoided, and the reliable connection of grounding blade body and terminal is ensured for a long time, and the clamping plate and clamping groove of conductive material are closely contacted through interference fit, and the contact gap and resistance are reduced, and there is no insulation intervention, and the smooth conduction of electric current is guaranteed.
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Description

Technical Field

[0001] This application relates to the field of electrical connection technology, and more specifically, to a connection structure for a grounding plate. Background Technology

[0002] A circular pre-insulated grounding terminal is a connector used in electrical grounding systems. Its core is a circular copper conductive terminal, which is wrapped with an insulating layer. Some terminals are also designed to facilitate connection with other components. It can stably connect the grounding wire of electrical equipment to the grounding device, realize the conduction of the grounding loop, and at the same time avoid the risk of leakage and short circuit through the insulating layer. It is widely used in grounding connection scenarios of various electrical equipment.

[0003] The existing connection methods between the terminal block and the circular pre-insulated grounding plate are mainly bolt fastening or crimping with tools. Bolt fastening requires tools such as wrenches, which is cumbersome and inefficient. In vibrating environments, bolts are prone to loosening, leading to poor contact. Long-term use can also increase maintenance difficulty due to thread corrosion. While crimping with tools provides a secure connection, it is an irreversible connection. If the grounding plate needs to be replaced or repaired later, the connection structure must be damaged, which is not only complicated but also causes component wear. Furthermore, it requires high precision in crimping tools and operations, and improper crimping can easily affect conductivity. Utility Model Content

[0004] To address the aforementioned issues, this application provides a connection structure for a grounding plate.

[0005] The grounding plate connection structure provided in this application adopts the following technical solution:

[0006] A grounding plate connection structure includes a grounding plate body, a grounding wire, and a terminal block. The terminal block is connected to one end of the grounding wire and is plugged into one side of the grounding plate body. A connection component is provided between the grounding plate body and the terminal block.

[0007] The number of connecting components is set to two sets. The two sets of connecting components are respectively set on both sides of the outer wall of the grounding plate body and the terminal block. Each set of connecting components includes a card plate and a card slot, which are used to connect and fix the grounding plate body and the terminal block.

[0008] Furthermore, each set of connecting components also includes an inclined plate, and fixing plates are fixedly connected to both sides of the outer wall of the terminal block. Each inclined plate is fixedly installed on one side of the corresponding fixing plate, and each clamping plate is fixedly connected to the corresponding inclined plate.

[0009] Furthermore, openings are provided on both sides of the grounding plate body, and the structure of each opening is adapted to the structure of the corresponding card plate.

[0010] Furthermore, each slot is fixedly installed on both sides of the outer wall of the grounding plate body, and the structure of each slot is adapted to the structure of the corresponding card plate. Each card plate is inserted into the corresponding slot with an interference fit.

[0011] Furthermore, each card plate has a protrusion fixedly connected to one side, and each card slot has a fixing groove on one side of its inner wall, with each protrusion engaging with the corresponding fixing groove.

[0012] Furthermore, each card has raised textures on its outer wall.

[0013] The above technical solutions can improve installation efficiency.

[0014] Furthermore, limit grooves are provided on both sides of the inside of the grounding plate body, and limit strips are fixedly connected to both sides of the outer wall of the wiring terminal.

[0015] Furthermore, each limit bar is inserted into its corresponding limit groove.

[0016] The above technical solution can limit the relative rotation and offset between the terminal block and the grounding plate body, ensuring precise alignment of the card plate and the slot, and the protrusion and the fixing slot, thereby improving the connection accuracy and stability.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] This invention guides the elastic deformation of the card plate through the inclined plate in the connecting assembly, allowing it to pop out and interlock with the slot. Combined with reverse pulling, a stable connection can be achieved without additional tools, significantly improving installation efficiency. Furthermore, the double locking structure of the protrusion and the fixing groove effectively resists vibration and external interference, preventing loosening and ensuring a long-term reliable connection between the grounding plate and the terminal block. At the same time, the conductive material card plate and the slot are in close contact through an interference fit, reducing contact gaps and resistance, and the absence of insulating materials ensures smooth current conduction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the grounding plate body and the wiring terminal of this utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the grounding plate body of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0023] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point B.

[0024] Explanation of reference numerals in the attached drawings: 1. Grounding plate body; 2. Grounding wire; 3. Terminal block; 4. Fixing plate; 5. Inclined plate; 6. Clamping plate; 7. Protrusion; 8. Through-hole; 9. Slot; 10. Fixing slot; 11. Raised pattern; 12. Limiting strip; 13. Limiting groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Reference Figures 1-5 A grounding plate connection structure includes a grounding plate body 1, a grounding wire 2, and a terminal block 3. The terminal block 3 is connected to one end of the grounding wire 2 and is plugged into one side of the grounding plate body 1. A connection component is provided between the grounding plate body 1 and the terminal block 3.

[0027] The number of connecting components is set to two sets. The two sets of connecting components are respectively set on the outer walls of the grounding plate body 1 and the terminal 3. Each set of connecting components includes a card plate 6 and a card slot 9. The card plate 6 and the card slot 9 are used to connect and fix the grounding plate body 1 and the terminal 3.

[0028] Reference Figures 1-5 Each set of connecting components also includes an inclined plate 5. Fixing plates 4 are fixedly connected to both sides of the outer wall of the terminal block 3. Each inclined plate 5 is fixedly installed on one side of the corresponding fixing plate 4. Each clamping plate 6 is fixedly connected to the corresponding inclined plate 5. Both sides of the grounding plate body 1 are provided with through openings 8. The structure of each through opening 8 is adapted to the structure of the corresponding clamping plate 6. Each slot 9 is fixedly installed on both sides of the outer wall of the grounding plate body 1. The structure of each slot 9 is adapted to the structure of the corresponding clamping plate 6. Each clamping plate 6 is inserted into the corresponding slot 9 with an interference fit. One side of each clamping plate 6 is fixedly connected with a protrusion 7. One side of the inner wall of each slot 9 is provided with a fixing groove 10. Each protrusion 7 is engaged with the corresponding fixing groove 10.

[0029] The grounding plate body 1 can be quickly connected via the connecting component. Specifically, during the connection operation, the terminal 3 is first aligned with one side of the grounding plate body 1, allowing the terminal 3 to initially connect to the grounding plate body 1. During insertion, the tilting plate 5, due to its tilt angle, guides the retaining plate 6 to undergo a slight elastic deformation outwards. When the retaining plates 6 on both sides are located at the openings 8 on both sides, the retaining plates 6 on both sides of the outer wall of the terminal 3, no longer constrained by the inner wall of the grounding plate body 1, directly eject the grounding plate through their own elasticity. On the outside of the main body 1, pull the reverse pull terminal 3. At this time, the two side plates 6 will be inserted into the matching slots 9 on both sides of the outer wall of the grounding plate main body 1. Since the plate 6 and the slot 9 are interference fit, a tight connection can be achieved. At the same time, when the plate 6 is inserted into the slot 9, the protrusion 7 on one side of the plate 6 will be inserted into the fixing groove 10 on the inner wall of the slot 9, forming a double locking structure. This completes the quick and stable connection between the grounding plate main body 1 and the terminal 3. The whole process does not require additional tools, is convenient and efficient, and can effectively ensure the stability and conductivity after connection.

[0030] During connection, the inclined plate 5 guides the card plate 6 to pop out after elastic deformation, and then uses reverse pulling force to lock it into the card slot 9. The interference fit makes the card plate 6 and the card slot 9 fit tightly. The double locking of the protrusion 7 and the fixing groove 10 prevents loosening, so that the grounding plate body 1 and the terminal 3 are always firmly connected, ensuring long-term stability.

[0031] Meanwhile, since the card plate 6, terminal block 3, and grounding plate body 1 are all made of conductive materials, after connection, the card plate 6 contacts the card slot 9. The interference fit further reduces the contact gap and lowers the contact resistance. Moreover, no additional insulating material is involved in the connection process, thus ensuring conductivity.

[0032] The inclined plate 5 in the connecting assembly guides the elastic deformation of the card plate 6, which pops out and interlocks with the slot 9. Combined with the reverse pulling operation, a stable connection can be completed without additional tools, greatly improving installation efficiency. Furthermore, the double locking structure of the protrusion 7 and the fixing groove 10 can effectively resist vibration and external interference, prevent loosening, and ensure a long-term reliable connection between the grounding plate body 1 and the terminal 3. At the same time, the conductive material card plate 6 and the slot 9 are in close contact through the interference fit, reducing contact gap and resistance, and without the intervention of insulation materials, ensuring smooth current conduction.

[0033] Reference Figures 1-5 Each card plate 6 has raised textures 11 on its outer wall.

[0034] The raised texture 11 increases the friction with the inner wall of the slot 9, and together with the interference fit and the protrusion 7, it further enhances the ability to prevent loosening after connection and strengthens stability.

[0035] Reference Figure 2 and Figure 3 The grounding plate body 1 has limit grooves 13 on both sides inside, and the terminal block 3 has limit strips 12 fixedly connected to both sides of the outer wall. Each limit strip 12 is inserted into the corresponding limit groove 13.

[0036] By connecting the limiting strip 12 to the limiting groove 13, the relative rotation and offset of the wiring terminal 3 and the grounding plate body 1 can be restricted, ensuring that the card plate 6 and the card groove 9, and the protrusion 7 and the fixing groove 10 are accurately aligned, thereby improving the connection accuracy and stability.

[0037] Working principle: When connecting, first align the terminal 3 with one side of the grounding plate body 1, so that the limiting strip 12 on the outer wall of the terminal 3 is inserted into the limiting groove 13 on the inner side of the grounding plate body 1, to complete the initial positioning and limit relative rotation;

[0038] During insertion, the inclined plate 5 guides the card plate 6 to elastically deform outward. When the card plate 6 reaches the opening 8, it is freed from restraint and elastically pops out to the outside of the grounding plate body 1. Then, the terminal 3 is pulled in the opposite direction, and the card plates 6 on both sides are inserted into the corresponding slots 9. The interference fit makes the outer wall texture 11 of the card plate 6 in close contact with the inner wall of the slot 9. At the same time, the protrusion 7 on the card plate 6 is inserted into the fixing groove 10 in the slot 9, forming multiple locking.

[0039] Ultimately, through the close contact between the conductive material plate 6, the wiring terminal 3, and the grounding plate body 1, the current is smoothly conducted. The entire process requires no tools, which not only ensures the stability and conductivity of the connection but also improves the installation efficiency.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grounding plate connection structure, comprising a grounding plate body (1), a grounding wire (2), and a terminal block (3), characterized in that, The terminal block (3) is connected to one end of the grounding wire (2), the terminal block (3) is inserted into one side of the grounding plate body (1), and a connecting component is provided between the grounding plate body (1) and the terminal block (3); The number of the connecting components is set to two sets. The two sets of connecting components are respectively set on both sides of the outer wall of the grounding plate body (1) and the terminal (3). Each set of connecting components includes a card plate (6) and a card slot (9). The card plate (6) and the card slot (9) are used to connect and fix the grounding plate body (1) and the terminal (3).

2. The connection structure of a grounding plate according to claim 1, characterized in that: Each set of the connecting components also includes an inclined plate (5), and a fixing plate (4) is fixedly connected to both sides of the outer wall of the terminal (3). Each inclined plate (5) is fixedly installed on one side of the corresponding fixing plate (4), and each clamping plate (6) is fixedly connected to the corresponding inclined plate (5).

3. The connection structure of a grounding plate according to claim 1, characterized in that: Both sides of the grounding plate body (1) are provided with openings (8), and the structure of each opening (8) is adapted to the structure of the corresponding card plate (6).

4. The connection structure of a grounding plate according to claim 1, characterized in that: Each of the card slots (9) is fixedly installed on both sides of the outer wall of the grounding plate body (1). The structure of each card slot (9) is adapted to the structure of the corresponding card plate (6). Each card plate (6) is inserted into the corresponding card slot (9) and is in an interference fit.

5. The connection structure of a grounding plate according to claim 1, characterized in that: Each of the card plates (6) has a protrusion (7) fixedly connected to one side, and each of the card slots (9) has a fixing groove (10) opened on one side of its inner wall, and each of the protrusions (7) is engaged with the corresponding fixing groove (10).

6. The connection structure of a grounding plate according to claim 1, characterized in that: Each of the card plates (6) has raised textures (11) on its outer wall.

7. The connection structure of a grounding plate according to claim 1, characterized in that: Limiting grooves (13) are provided on both sides of the interior of the grounding plate body (1), and limiting strips (12) are fixedly connected to both sides of the outer wall of the terminal block (3).

8. The connection structure of a grounding plate according to claim 7, characterized in that: Each of the limiting strips (12) is inserted into the corresponding limiting groove (13).