A full-coverage integrated current transformer shell structure

Abstract

The utility model discloses a full coverage integrated current transformer shell structure, include: casing, the second end of casing is open structure, and the first end inner wall of casing forms and has the threading pipe, and the threading pipe extends to the second end of casing, and the inner chamber of threading pipe is through the first end of casing, terminal block is embedded in the upper surface of casing, a plurality of terminal blocks, a plurality of terminal blocks are embedded in the upper surface of terminal block, transparent cover, transparent cover cover is in the outside of terminal block, and transparent cover is connected with terminal block, cover plate, cover plate is connected with the second end of casing, and the threading hole is set up in cover plate side and is communicated with the inner chamber of threading pipe, the utility model discloses the scheme through casing, terminal block and cover plate form full coverage shell structure, and the surface of terminal block is provided with a plurality of terminal blocks, satisfies the wiring demand, need not additional configuration installation structure, and the shell structure is unified, helps to guarantee production quality and use effect.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, specifically to a fully covered integrated current transformer housing structure. Background Technology

[0002] Existing current transformer housings are all semi-enclosed box-like structures with one open side, lacking mounting structures and outgoing terminal structures. During transformer manufacturing, the secondary windings, resin, and secondary terminals are installed from the exposed side, requiring additional mounting structures, which affects the consistency of current transformer manufacturing quality. Utility Model Content

[0003] This utility model provides a fully covered integrated current transformer housing structure, which forms a fully covered housing structure through the housing, terminal block and cover plate. The terminal block surface is provided with multiple wiring terminals to meet wiring requirements. No additional installation structure is required. The housing structure is uniform, which helps to ensure production quality and performance.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: This utility model provides a fully covered integrated current transformer housing structure, including: The housing has an open structure at its second end, and a conduit is formed on the inner wall of the first end of the housing. The conduit extends to the second end of the housing, and the inner cavity of the conduit penetrates the first end of the housing. Terminal block, which is embedded in the upper surface of the housing; Multiple terminals are embedded in the upper surface of the terminal block; A transparent cover is provided, which covers the outside of the terminal block and is connected to the terminal block. Multiple wire outlet slots are provided through the outside of the transparent cover, and the multiple wire outlet slots correspond to multiple wiring terminals respectively. A cover plate is connected to the second end of the housing. A through hole is provided on the side of the cover plate, and the through hole is connected to the inner cavity of the through tube.

[0005] Optionally, the fully covered integrated current transformer housing structure further includes: A receiving cavity formed on the upper surface of the housing, the receiving cavity extending through a second end of the housing; The terminal block has an installation groove on its outer side, which is inserted into the inner wall of the receiving cavity, and the cover plate abuts against the terminal block.

[0006] Optionally, the terminal block surface is provided with multiple embedding holes, and multiple wiring terminals are respectively embedded in the multiple embedding holes.

[0007] Optionally, the fully covered integrated current transformer housing structure further includes: A connecting through hole is provided through the upper surface of the transparent cover; A threaded hole is provided on the upper surface of the terminal block, and the threaded hole corresponds to the connecting through hole; A lead-sealing screw, the end of which passes through the connecting through hole and is threadedly connected to the threaded hole.

[0008] Optionally, the fully covered integrated current transformer housing structure further includes: A first positioning groove is formed on the inner wall of the second end of the housing; A positioning frame is formed on the side of the cover plate and is inserted into the first positioning groove.

[0009] Optionally, the fully covered integrated current transformer housing structure further includes: Multiple snap-fit ​​grooves are evenly distributed on both sides of the inner wall of the inner cavity at the second end of the housing; Multiple support plates are formed on the side of the positioning frame, and the multiple support plates correspond to multiple snap-fit ​​grooves; Multiple snap-fit ​​blocks are formed on the outside of multiple carrier plates, and the multiple snap-fit ​​blocks snap into multiple snap-fit ​​slots.

[0010] Optionally, the sides of the multiple snap-fit ​​blocks are provided with guide slopes, and the width of the multiple snap-fit ​​blocks gradually decreases in the direction away from the positioning frame.

[0011] Optionally, the fully covered integrated current transformer housing structure further includes: The second positioning groove is formed at the end of the conduit near the cover plate; A positioning ring is formed on the side of the cover plate and is inserted into the second positioning groove.

[0012] Optionally, the outer side of the bottom of the housing is formed with multiple mounting plates, and multiple mounting holes are provided through the surface of the mounting plates.

[0013] The above-described solution of this utility model has at least the following beneficial effects: The above-mentioned solution of this utility model forms a fully covered shell structure through the housing, terminal block and cover plate. The terminal block surface is provided with multiple wiring terminals to meet wiring requirements. No additional installation structure is required. The shell structure is uniform, which helps to ensure production quality and usage effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the fully covered integrated current transformer housing structure provided in an embodiment of this utility model; Figure 2 This is a right sectional view of the fully covered integrated current transformer housing structure provided in an embodiment of this utility model; Figure 3 This is an exploded view of the fully covered integrated current transformer housing structure provided in an embodiment of this utility model; Figure 4 yes Figure 3 Enlarged schematic diagram of part A; Figure 5 This is a schematic diagram of the terminal block structure in the fully covered integrated current transformer housing structure provided by an embodiment of this utility model; Figure 6 This is a schematic diagram of the opening end of the housing in the fully covered integrated current transformer housing structure provided in an embodiment of this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Housing; 11. Mounting plate; 12. Mounting hole; 13. Receiving cavity; 14. First positioning groove; 15. Snap-fit ​​groove; 2. Conduit; 21. Second positioning groove; 3. Transparent cover; 31. Outlet groove; 32. Connection through hole; 4. Lead seal screw; 5. Terminal block; 51. Threaded hole; 52. Embedded hole; 53. Mounting groove; 6. Cover plate; 61. Conduit hole; 62. Positioning ring; 63. Positioning frame; 64. Support plate; 65. Snap-fit ​​block; 7. Wiring terminal. Detailed Implementation

[0016] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0017] like Figures 1-6 As shown, this utility model provides a fully covered integrated current transformer housing structure, including: The housing 1 has an open structure at its second end. A wire tube 2 is formed on the inner wall of the first end of the housing 1. The wire tube 2 extends to the second end of the housing 1, and the inner cavity of the wire tube 2 penetrates the first end of the housing 1. Terminal block 5 is embedded in the upper surface of housing 1; Multiple terminals 7 are embedded in the upper surface of the terminal block 5; A transparent cover 3 is fitted over the outside of the terminal block 5. The transparent cover 3 is connected to the terminal block 5. Multiple wire outlet grooves 31 are provided through the outside of the transparent cover 3. The multiple wire outlet grooves 31 correspond to multiple wiring terminals 7 respectively. The cover plate 6 is connected to the second end of the housing 1. A wire hole 61 is provided through the side of the cover plate 6, and the wire hole 61 is connected to the inner cavity of the wire tube 2.

[0018] In this embodiment, during production, the secondary winding of the current transformer is placed inside the housing 1, and the secondary winding is connected to multiple terminals 7. Resin is filled inside the housing 1, and a cover plate 6 is connected to the second end of the housing 1. The cover plate 6 and the housing 1 form a fully covered structure with no exposed internal parts, ensuring high safety. The transparent cover plate 6 shields the multiple terminals 7, ensuring safety during use. The terminal base 5 integrates the multiple connecting terminals with the housing 1, making the production and processing of the current transformer more convenient. The housing 1, terminal base 5, and cover plate 6 form a fully covered outer shell structure. The surface of the terminal base 5 is provided with multiple terminals 7 to meet wiring requirements. No additional installation structure is required, and the uniform outer shell structure helps to ensure production quality and performance.

[0019] like Figure 3 , Figure 5 and Figure 6 As shown, in an optional embodiment of this utility model, the fully covered integrated current transformer housing structure further includes: A receiving cavity 13 is formed on the upper surface of the housing 1, and the receiving cavity 13 penetrates the second end of the housing 1; The terminal block 5 has an installation groove 53 on its outer side, which is inserted into the inner wall of the receiving cavity 13. The cover plate 6 abuts against the terminal block 5.

[0020] In this embodiment, the terminal block 5 is embedded in the upper surface of the housing 1 by inserting the mounting groove 53 into the inner wall of the receiving cavity 13. After the cover plate 6 is connected to the second end of the housing 1, the terminal block 5 is limited and fixed in the receiving cavity 13 to ensure the stability of the terminal block 5. By embedding the terminal block 5 into the upper surface of the housing 1, the connection terminal and the housing 1 are integrated into one, making the production and processing of the current transformer more convenient.

[0021] like Figure 5 As shown, in an optional embodiment of the present invention, a plurality of embedding holes 52 are provided through the surface of the terminal block 5, and a plurality of wiring terminals 7 are respectively embedded in the plurality of embedding holes 52.

[0022] In this embodiment, by providing multiple embedding holes 52 on the surface of the terminal block 5, multiple wiring terminals 7 are embedded in the multiple embedding holes 52, so that multiple connecting wire terminals 7 are embedded on the surface of the terminal block 5. At the same time, it is convenient to realize the electrical connection between the multiple wiring terminals 7 and the secondary winding.

[0023] like Figure 3 and Figure 5 As shown, in an optional embodiment of this utility model, the fully covered integrated current transformer housing structure further includes: A connecting through hole 32 is provided through the upper surface of the transparent cover 3; Threaded hole 51 is provided on the upper surface of terminal block 5, and threaded hole 51 corresponds to connecting through hole 32; The lead-sealing screw 4 has its end connected through the through hole 32 and is threadedly connected to the threaded hole 51.

[0024] In this embodiment, the transparent cover 3 is connected to the terminal block 5 by the lead-sealed screw 4, the connecting through hole 32 and the threaded hole 51; the lead-sealed screw 4 is used to connect and prevent the transparent cover 3 from being opened, thus ensuring safety and integrity.

[0025] like Figure 3 , Figure 4 and Figure 6 As shown, in an optional embodiment of this utility model, the fully covered integrated current transformer housing structure further includes: The first positioning groove 14 is formed on the inner wall of the second end of the housing 1; The positioning frame 63 is formed on the side of the cover plate 6 and is inserted into the first positioning groove 14.

[0026] In this embodiment, the connection between the cover plate 6 and the second end of the housing 1 is achieved by inserting the positioning frame 63 into the first positioning groove 14, thus ensuring the accuracy of the connection between the cover plate 6 and the second end of the housing 1.

[0027] like Figure 3 , Figure 4 and Figure 6 As shown, in an optional embodiment of this utility model, the fully covered integrated current transformer housing structure further includes: Multiple snap-fit ​​slots 15 are evenly distributed on both sides of the inner wall of the inner cavity at the second end of the housing 1. Multiple support plates 64 are formed on the side of the positioning frame 63, and the multiple support plates 64 correspond to multiple snap-fit ​​grooves 15. Multiple snap-fit ​​blocks 65 are formed on the outside of multiple carrier plates 64, and the multiple snap-fit ​​blocks 65 snap-fit ​​with multiple snap-fit ​​slots 15.

[0028] In this embodiment, during the process of the positioning frame 63 being inserted into the first positioning groove 14, multiple snap-fit ​​blocks 65 gradually approach multiple snap-fit ​​slots 15. After the positioning frame 63 is inserted into the first positioning groove 14, the multiple snap-fit ​​blocks 65 snap into the multiple snap-fit ​​slots 15 to ensure the stability of the connection between the cover plate 6 and the second end of the housing 1.

[0029] like Figure 4 As shown, in an optional embodiment of the present invention, the sides of the plurality of snap-fit ​​blocks 65 are provided with guide slopes, and the width of the plurality of snap-fit ​​blocks 65 gradually decreases in the direction away from the positioning frame 63.

[0030] In this embodiment, when connecting the cover plate 6 to the second end of the housing 1, the guide slopes of the multiple snap-fit ​​blocks 65 contact the second end of the housing 1, causing the multiple support plates 64 to deform under force. After the multiple snap-fit ​​blocks 65 correspond to the multiple snap-fit ​​grooves 15, the multiple support plates 64 return to their original state, and the multiple snap-fit ​​blocks 65 snap into the multiple snap-fit ​​grooves 15, thereby realizing the connection between the cover plate 6 and the second end of the housing 1.

[0031] like Figure 3 and Figure 6 As shown, in an optional embodiment of this utility model, the fully covered integrated current transformer housing structure further includes: The second positioning groove 21 is formed at the end of the conduit 2 near the cover plate 6; The positioning ring 62 is formed on the side of the cover plate 6 and is inserted into the second positioning groove 21.

[0032] In this embodiment, after the cover plate 6 is connected to the second end of the housing 1, the positioning ring 62 is inserted into the second positioning groove 21. Through the insertion and cooperation of the positioning ring 62 and the second positioning groove 21, the connection between the cover plate 6 and the conduit 2 is ensured, so as to ensure the stability of the conduit 2.

[0033] like Figure 1 and Figure 6 As shown, in an optional embodiment of the present invention, multiple mounting plates 11 are formed on the outer side of the bottom of the housing 1, and multiple mounting holes 12 are provided through the surface of the multiple mounting plates 11.

[0034] In this embodiment, the installation of the housing 1 is facilitated by multiple mounting plates 11 and multiple mounting holes 12, thereby replacing the conventional method of embedding copper inserts and saving raw material and labor costs.

[0035] The fully covered integrated current transformer housing structure provided in the above embodiments of this utility model forms a fully covered structure through the cover plate 6 and the housing 1, with no exposed internal parts, ensuring high safety; the transparent cover plate 6 shields multiple wiring terminals 7, ensuring safety during use; the terminal base 5 integrates multiple connecting terminals with the housing 1, making the production and processing of the current transformer more convenient; the terminal base 5 is embedded in the upper surface of the housing 1 through the insertion connection between the mounting groove 53 and the inner wall of the receiving cavity 13; after the cover plate 6 is connected to the second end of the housing 1, the terminal base 5 is limited and fixed in the receiving cavity 13 to ensure the stability of the terminal base 5; by embedding the terminal base 5 into the upper surface of the housing 1, the connecting terminals are integrated with the housing 1, making the production and processing of the current transformer more convenient; the housing 1, terminal base 5 and cover plate 6 form a fully covered housing structure, and the surface of the terminal base 5 is provided with multiple wiring terminals 7 to meet wiring requirements, eliminating the need for additional installation structures, and the uniform housing structure helps to ensure production quality and performance; multiple embedding holes 5 are provided on the surface of the terminal base 5. 2. Multiple terminals 7 are embedded in multiple embedding holes 52, so that multiple connecting terminals 7 are embedded in the surface of terminal base 5, and at the same time, it is convenient to realize the electrical connection between multiple terminals 7 and secondary winding; the transparent cover 3 and terminal base 5 are connected by lead-sealing screws 4, connecting through holes 32 and threaded holes 51; the connection by lead-sealing screws 4 prevents the transparent cover 3 from being opened, ensuring safety and integrity; during the process of positioning frame 63 being inserted into the first positioning groove 14, multiple snap-fit ​​blocks 65 gradually approach multiple snap-fit ​​slots 15, and positioning frame 63 is inserted into the first positioning groove 14. After the groove 14 is positioned, multiple snap-fit ​​blocks 65 engage with multiple snap-fit ​​slots 15 to ensure the stable connection between the cover plate 6 and the second end of the housing 1. After the cover plate 6 is connected to the second end of the housing 1, the positioning ring 62 is inserted into the second positioning groove 21. Through the insertion and engagement of the positioning ring 62 and the second positioning groove 21, the connection between the cover plate 6 and the conduit 2 is ensured, thereby ensuring the stability of the conduit 2. The installation of the housing 1 is facilitated by multiple mounting plates 11 and multiple mounting holes 12, thereby replacing the conventional method of embedding copper inserts and saving raw materials and labor costs.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A fully covered integrated current transformer housing structure, characterized in that: include: The housing (1) has an open structure at its second end and a threaded tube (2) formed on the inner wall of the first end of the housing (1). The threaded tube (2) extends to the second end of the housing (1) and the inner cavity of the threaded tube (2) penetrates the first end of the housing (1). Terminal block (5), which is embedded in the upper surface of the housing (1); Multiple terminals (7) are embedded in the upper surface of the terminal block (5); A transparent cover (3) is provided on the outside of the terminal block (5). The transparent cover (3) is connected to the terminal block (5). Multiple wire outlet grooves (31) are provided through the outside of the transparent cover (3). The multiple wire outlet grooves (31) correspond to multiple wiring terminals (7) respectively. The cover plate (6) is connected to the second end of the housing (1). A wire hole (61) is provided through the side of the cover plate (6), and the wire hole (61) is connected to the inner cavity of the wire tube (2).

2. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, Also includes: A receiving cavity (13) is formed on the upper surface of the housing (1), the receiving cavity (13) extending through the second end of the housing (1); The terminal block (5) has an installation groove (53) on its outer side. The installation groove (53) is inserted into the inner wall of the receiving cavity (13). The cover plate (6) abuts against the terminal block (5).

3. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, The terminal block (5) has multiple embedding holes (52) through its surface, and multiple wiring terminals (7) are respectively embedded in the multiple embedding holes (52).

4. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, Also includes: A connecting through hole (32) is provided through the upper surface of the transparent cover (3); A threaded hole (51) is provided on the upper surface of the terminal block (5), and the threaded hole (51) corresponds to the connecting through hole (32); A lead-sealed screw (4) is provided, the end of which passes through the connecting through hole (32) and is threadedly connected to the threaded hole (51).

5. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, Also includes: The first positioning groove (14) is formed on the inner wall of the second end of the housing (1); The positioning frame (63) is formed on the side of the cover plate (6) and is inserted into the first positioning groove (14).

6. The fully covered integrated current transformer housing structure according to claim 5, characterized in that, Also includes: Multiple snap-fit ​​grooves (15) are evenly distributed on both sides of the inner wall of the inner cavity at the second end of the housing (1); Multiple support plates (64) are formed on the side of the positioning frame (63), and the multiple support plates (64) correspond to multiple snap-fit ​​slots (15); Multiple snap-fit ​​blocks (65) are formed on the outside of multiple carrier plates (64) and snap-fit ​​blocks (65) engage with multiple snap-fit ​​slots (15).

7. The fully covered integrated current transformer housing structure according to claim 6, characterized in that, The sides of the multiple snap-fit ​​blocks (65) are provided with guide slopes, and the width of the multiple snap-fit ​​blocks (65) gradually decreases in the direction away from the positioning frame (63).

8. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, Also includes: The second positioning groove (21) is formed at the end of the conduit (2) near the cover plate (6); Positioning ring (62) is formed on the side of the cover plate (6) and is inserted into the second positioning groove (21).

9. The fully covered integrated current transformer housing structure according to claim 1, characterized in that, The outer side of the bottom of the housing (1) is formed with multiple mounting plates (11), and multiple mounting holes (12) are provided through the surface of the mounting plates (11).

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