Metal screw connector

Abstract

This utility model discloses a metal screw connector, including a plug assembly and a socket assembly. The plug assembly includes a plug housing with openings on both sides, and a socket assembly is snapped into one of the openings. A matching inner core I is snapped into the plug housing, and a terminal I is built into the inner core I. The socket assembly includes a socket housing with an inner core II inside, and a terminal II is provided on the inner core II. A locking nut is provided on the inner side of the terminal II. A locking bolt is screwed to the locking nut to secure the terminal and complete the electrical connection. The main features of this utility model are: the locking bolt locks the plug housing and socket housing onto the corresponding components of the client, while the locking bolt and locking nut secure the terminal to complete the electrical connection. This connection method is stable and reliable, preventing displacement or detachment of the plug housing and socket housing due to external forces. Furthermore, this method does not suffer from aging problems, maximizing safety and extending service life, and has wide applicability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more particularly to a metal screw connector. Background Technology

[0002] Energy storage devices are often electrically connected to other devices via energy storage connectors, enabling the energy storage device to supply power to other devices or to be charged by other devices. Common energy storage connectors include connector plugs and connector sockets that connect to each other through a mating connection. The connector plug connects to cables, and the connector socket connects to the electrical device or other equipment.

[0003] For example, patent announcement number CN201682133U discloses an electrical connector plug and its socket. The plug includes a plug housing, an insulator fixedly disposed inside the plug housing, and a contact element cast and fixed inside the insulator. A locking structure is provided on the outer circumferential surface of the plug housing's insertion end. The locking structure includes a connecting sleeve fixed to the insertion end of the plug housing, an elastic claw structure on the end face of the connecting sleeve, and a locking block on the end of the elastic claw structure. A locking groove is provided on the insertion end of the socket housing's inner hole. However, the above-mentioned use of an elastic claw structure for locking is susceptible to displacement or even accidental detachment of the plug housing under external force, affecting the stability of the plug-socket connection and posing a safety hazard. Furthermore, under prolonged use, the elastic claw structure may age or deform, affecting the locking connection effect and exhibiting significant limitations. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a measuring device for the perpendicularity and slope of a cylindrical workpiece.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A metal screw connector includes a plug assembly and a socket assembly that cooperate and lock together.

[0007] The plug assembly includes a plug housing mounted on the client side, with openings on both sides of the plug housing. One opening is sealed by a flip-top assembly, and the socket assembly is snapped into the other opening. An inner core I that is compatible with the plug housing is snapped into the plug housing, and a terminal I is built into the inner core I.

[0008] The socket assembly includes a socket housing mounted on the client side, the socket housing having an inner core II inside, the inner core II having a terminal II, and a locking nut fixed to the inner core II on the inner side of the terminal II.

[0009] A locking bolt can pass through terminals I and II and be screwed into the locking nut.

[0010] Preferably, both the plug housing and the socket housing are fixedly provided with locking blocks, and the locking blocks are provided with locking holes. Locking bolts can pass through the locking holes to fix the plug housing or socket housing to the client.

[0011] Preferably, the inner core I includes an integrally formed locking end and a connecting end. A set of limiting strips are fixed on both sides of the locking end, and a limiting groove adapted to the limiting strips is opened on the inner wall of the plug housing. A limiting opening is also opened at the top of the locking end, and a limiting rocker plate fixed on the locking end is provided in the limiting opening. A limiting block is fixed on the limiting rocker plate, and the cross-section of the limiting block is a right-angled triangle.

[0012] Preferably, a locking groove is provided in the locking end, and a positioning plate I is fixedly provided on the inner side of the locking groove, with the side of the positioning plate I abutting against the inner side of the terminal I; positioning plates II are fixedly provided at both ends of the locking groove, with the side of the positioning plate II abutting against the outer side of the terminal I.

[0013] Preferably, the connecting end includes at least a connecting plate fixed on the positioning plate II, the connecting plate has a slot, the slot has a positioning rocker fixed on the connecting plate, the positioning rocker has a positioning block fixed on it, the positioning block has a right-angled triangle cross-section, and the terminal I has a positioning groove that matches the outer contour of the positioning block.

[0014] Preferably, the flip cover assembly includes at least a pin seat fixed on one side of the plug housing, a pin pivotally mounted on the pin seat, a flip cover fixed on the pin pivot, and a sealing ring fixed on the inner wall of the flip cover; a connector is fixed at the other end of the flip cover, and a connecting bolt can screw the connector to the plug housing.

[0015] Preferably, a pressure cover is provided on the other side of the plug housing, the pressure cover can extend at least partially into the opening and be inserted into the plug housing, and a waterproof ring is provided between the pressure cover and the plug housing; locking grooves are provided on the top and bottom of the pressure cover and the inner core I, and locking blocks adapted to the locking grooves are provided on the socket housing.

[0016] Preferably, the inner core II has receiving grooves on both sides, receiving rocker plates are built into the receiving grooves, and a locking block is fixed on the receiving rocker plate. The cross-section of the locking block is a right-angled triangle. The inner wall of the socket housing has receiving holes that are adapted to the locking block.

[0017] Preferably, the terminal II is L-shaped, comprising an integrally formed vertical end and a horizontal end, wherein the vertical end is in close contact with the side of the inner core II, and the horizontal end is in close contact with the end face of the inner core II.

[0018] Preferably, a tail cap is fitted at the bottom of the plug housing, and an inwardly bent extension is provided around the tail cap. A receiving groove is provided on the extension, and a locking block that can be extended into the receiving groove is provided on the plug housing. A baffle, a water-blocking ring, and a wire clamp are also sequentially provided inside the plug housing.

[0019] The beneficial effects of this utility model are mainly reflected in:

[0020] 1. The plug housing and socket housing are locked to the corresponding parts of the client by locking bolts. At the same time, the locking bolts and locking nuts are screwed together to fasten the terminals and complete the electrical connection. This connection method is stable and reliable, which can prevent the plug housing and socket housing from being displaced or falling off due to external forces. Moreover, this method will not have aging problems, maximizes safety and extends service life, and has a wide range of applicability.

[0021] 2. The preload between terminals II and I, which are fixed by locking bolts, is relatively large, with low contact resistance and stable reliability. This results in a relatively low and stable temperature rise. Under the same conditions, the connection method of this application also improves the conductivity, avoids the performance degradation caused by long-term thermal fatigue, extends the service life, and greatly improves safety.

[0022] 3. Positioning plate I and positioning plate II work together to restrict the axial movement of terminal I. The positioning block is inserted into the positioning groove of terminal I to achieve radial positioning of terminal I. The above design is ingenious, without the need for additional positioning or limiting structures, which greatly saves costs and facilitates disassembly and installation, and greatly improves work efficiency.

[0023] 4. The opening can be easily opened via the flip-top assembly structure, facilitating the tightening of the locking bolts. Furthermore, the flip-top is screwed onto the connector head with connecting bolts, making operation simple, convenient, stable, and reliable. It also facilitates disassembly and maintenance, greatly improving work efficiency.

[0024] 5. The waterproof ring reduces the possibility of water and dust ingress, significantly improving the sealing effect and enhancing safety. Additionally, the locking block and locking groove work together to improve assembly accuracy, providing guidance and positioning, and increasing assembly efficiency. The sealing ring further reduces the possibility of water and dust ingress, significantly improving the sealing effect and enhancing safety. Furthermore, the opening on one side is sealed using connecting bolts; this sealing method is simple, convenient, stable, and reliable, and also facilitates opening and sealing, greatly improving work efficiency.

[0025] 6. The limiting block can be locked onto the plug housing to achieve precise positioning of the inner core I. This operation is simple and convenient, requiring no additional positioning or limiting structures, which greatly saves costs and facilitates disassembly and installation, thus greatly improving work efficiency. Attached Figure Description

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0027] Figure 1 : A perspective view of a preferred embodiment of the present invention;

[0028] Figure 2 : A perspective view of the socket assembly in a preferred embodiment of this utility model, in which the socket housing is removed;

[0029] Figure 3 : A perspective view of the plug assembly in a preferred embodiment of this utility model;

[0030] Figure 4 : A cross-sectional view of the plug assembly in a preferred embodiment of this utility model;

[0031] Figure 5 : A perspective view of the inner core I in the first direction in the preferred embodiment of this utility model;

[0032] Figure 6 : A perspective view of the inner core I in the second direction in a preferred embodiment of this utility model. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figures 1 to 6As shown, this utility model discloses a metal screw connector, which includes at least a socket assembly 2. The socket assembly 2 includes a socket housing 21 for mounting on a client. Preferably, this embodiment discloses one shape of the socket housing 21. Of course, the socket housing 21 can also be other shapes, which can be adjusted according to actual needs. In addition, the socket housing 21 can be assembled on the power distribution box, motor controller and battery pack of electric vehicles in various installation methods, such as screw connection, snap connection, etc., all of which are within the protection scope of this utility model.

[0037] The socket housing 11 has an inner core II5 inside, and a terminal II6 is provided on the inner core II5. The inner side of the terminal II6 is a locking nut 19 provided on the inner core II5. In this embodiment, the locking nut 19 is riveted to the inner core II5. Of course, it can also be fixed by welding, pressing or other methods, or the locking nut 19 can also be part of the inner core II5.

[0038] In this embodiment, the terminal II 6 is L-shaped, comprising an integrally formed vertical end 61 and a horizontal end 62. The vertical end 61 is in close contact with the side of the inner core II 5, and the horizontal end 62 is in close contact with the end face of the inner core II 5. The inner core II 5 has receiving grooves 51 on both sides, each containing a receiving rocker arm 52. A locking block 53 is fixedly mounted on the receiving rocker arm 52, and the locking block 53 has a right-angled triangular cross-section. The inner wall of the socket housing 21 has a receiving hole adapted to the locking block 53. The locking block 53 can be locked inside the socket housing 21, thereby achieving a quick connection between the socket housing 21 and the terminal II 6. This operation is simple and convenient, requiring no additional positioning or limiting structures, greatly saving costs and facilitating disassembly and installation, thus significantly improving work efficiency.

[0039] In this invention, a plug assembly 1 is provided on one side of the socket assembly 2, which can be plugged in and locked. The plug assembly 1 includes a plug housing 11 mounted on the client side. Openings 12 are provided on both sides of the plug housing 11, and the socket assembly 2 is snapped into one of the openings 12 on one side. Specifically, a pressure cover 87 is provided on the other side of the plug housing 11. The pressure cover 87 can extend at least partially into the opening 12 and plug in with the plug housing 11. A waterproof ring 80 is provided between the pressure cover 87 and the plug housing 11. Locking grooves 88 are provided on the top and bottom of the pressure cover 87 and the inner core 13. A locking block 89 adapted to the locking groove 88 is provided on the socket housing 21. The waterproof ring 80 reduces the possibility of water and dust entering, which can greatly improve the sealing effect and improve safety. In addition, the locking block and locking groove 88 can also improve the assembly accuracy, play a guiding and positioning role, and improve assembly efficiency.

[0040] The opening 12 on the other side is sealed by a flip cover assembly 8, which includes at least a pin seat 81 fixed to one side of the plug housing 11. A pin 82 is pivotally mounted on the pin seat 81, and a flip cover 83 is fixed to the pin 82. A sealing ring 86 is fixed to the inner wall of the flip cover 83. A connector 84 is fixed to the other end of the flip cover 83, and a connecting bolt 85 can screw the connector 84 to the plug housing 11. In actual operation, by unscrewing the connecting bolt 85 and pulling the flip cover 83 around the pin 82, the locking bolt 7 can be unscrewed with a screwdriver, separating the plug assembly 1 and the socket assembly 2. The operation is simple and convenient. When it is necessary to reconnect the plug assembly 1 and the socket assembly 2, the flip cover 83 is opened, and the locking bolt 7 is screwed back into the locking nut 19 to achieve electrical connection between the plug assembly 1 and the socket assembly 2. The flip cover 83 is then locked to the connector 84 by the connecting bolt 85, sealing the opening. This method is simple, convenient, stable, and reliable, greatly improving work efficiency.

[0041] The plug housing 11 is fitted with a matching inner core I3, and the inner core I3 contains a terminal I4. Further, the inner core I3 includes an integrally formed locking end 31 and a connecting end 32. A set of limiting strips 33 are fixed on both sides of the locking end 31, and a limiting groove adapted to the limiting strips 33 is formed on the inner wall of the plug housing 11. A limiting opening 34 is also formed at the top of the locking end 31, and a limiting rocker plate 35 is fixed to the locking end 31 within the limiting opening 34. A limiting block 36 is fixed on the limiting rocker plate 35, and the limiting block 36 has a right-angled triangular cross-section. The limiting block 36 can be engaged with the plug housing 11, thereby achieving precise positioning of the inner core I3. This operation is simple and convenient, requiring no additional positioning or limiting structures, greatly saving costs and facilitating disassembly and installation, significantly improving work efficiency.

[0042] The locking end 31 has a locking groove, and a positioning plate I 37 is fixedly mounted on the inner side of the locking groove. The side of the positioning plate I 37 abuts against the inner side of the terminal I 4. Positioning plates II 38 are fixedly mounted on both ends of the locking groove, and the side of the positioning plate II 38 abuts against the outer side of the terminal I 4. The connecting end 32 includes at least a connecting plate 321 fixed on the positioning plate II 38. The connecting plate 321 has a slot 322, and a positioning rocker plate 323 fixed on the connecting plate 321 is built into the slot 322. A positioning block 324 is fixed on the positioning rocker plate 323. The cross-section of the positioning block 324 is a right-angled triangle, and a positioning groove matching the outer contour of the positioning block 324 is provided on the terminal I 4. The positioning plate I 37 and positioning plate II 38 cooperate to restrict the axial movement of terminal I 4. The positioning block 324 is inserted into the positioning groove of terminal I 4 to achieve radial positioning of terminal I 4. The above design is ingenious, without the need for additional positioning or limiting structures, which greatly saves costs and facilitates disassembly and installation, and greatly improves work efficiency.

[0043] The bottom of the plug housing 11 is fitted with a tail cap 9, and the tail cap 9 is provided with an inwardly bent extension 91 around its perimeter. The extension 91 is provided with a receiving groove 92, and the plug housing 11 is provided with a locking block 93 that can be extended into the receiving groove 92. The plug housing 11 is also provided with a baffle 94, a water-blocking ring 95, and a wire clamp 96 in sequence.

[0044] In this utility model, a locking bolt 7 can pass through the terminal I 4 and the terminal II 6 and be screwed to the locking nut 19. The preload between the terminal II and the terminal I fixed by the locking bolt 7 is large, the contact resistance is small, and the connection is stable and reliable, which makes the temperature rise relatively low and stable. Under the same conditions, the connection method of this application also improves the conductivity, avoids the performance degradation caused by long-term thermal fatigue, extends the service life and greatly improves the safety.

[0045] In addition, locking blocks 10 are fixedly provided on both the plug housing 11 and the socket housing 21. The locking blocks 10 have locking holes, and locking bolts can pass through the locking holes to fix the plug housing 11 or the socket housing 21 to the client. This connection structure is stable and reliable, which can prevent the plug housing 11 and the socket housing 21 from being displaced or falling off due to external forces. Moreover, this method will not have aging problems, maximizes safety and extends service life, and has a wide range of applicability.

[0046] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A metal screw connector, characterized in that: It includes a plug assembly (1) and a socket assembly (2) that are mutually engaged and locked. The plug assembly (1) includes a plug housing (11), with openings (12) on both sides of the plug housing (11). The opening (12) on one side is sealed by a flip cover assembly (8), and the socket assembly (2) is snapped onto the opening (12) on the other side. An inner core I (3) adapted to it is snapped into the plug housing (11), and a terminal I (4) is built into the inner core I (3). The socket assembly (2) includes a socket housing (21), which has an inner core II (5) inside. The inner core II (5) is provided with a terminal II (6), and a locking nut (19) fixed on the inner core II (5) is provided on the inner side of the terminal II (6). A locking bolt (7) can pass through the terminal I (4) and the terminal II (6) and be screwed to the locking nut (19).

2. The metal screw connector according to claim 1, characterized in that: Both the plug housing (11) and the socket housing (21) are fixed with locking blocks (10). The locking blocks (10) are provided with locking holes. The locking bolts can pass through the locking holes to fix the plug housing (11) or the socket housing (21) to the client.

3. The metal screw connector according to claim 1, characterized in that: The inner core I (3) includes an integrally formed locking end (31) and a connecting end (32). A set of limiting strips (33) are fixed on both sides of the locking end (31). A limiting groove adapted to the limiting strips (33) is opened on the inner wall of the plug housing (11). A limiting port (34) is also opened on the top of the locking end (31). A limiting rocker plate (35) fixed on the locking end (31) is provided in the limiting port (34). A limiting block (36) is fixed on the limiting rocker plate (35). The cross-section of the limiting block (36) is a right triangle.

4. The metal screw connector according to claim 3, characterized in that: The locking end (31) is provided with a locking groove, and a positioning plate I (37) is fixedly provided on the inner side of the locking groove. The side of the positioning plate I (37) abuts against the inner side of the terminal I (4). Positioning plates II (38) are fixedly provided at both ends of the locking groove. The side of the positioning plate II (38) abuts against the outer side of the terminal I (4).

5. The metal screw connector according to claim 4, characterized in that: The connecting end (32) includes at least a connecting plate (321) fixed on the positioning plate II (38). The connecting plate (321) has a slot (322) inside. The slot (322) has a positioning rocker plate (323) fixed on the connecting plate (321). The positioning rocker plate (323) has a positioning block (324) fixed on it. The cross-section of the positioning block (324) is a right triangle. The terminal I (4) has a positioning groove that matches the outer contour of the positioning block (324).

6. The metal screw connector according to any one of claims 1-5, characterized in that: The flip cover assembly (8) includes at least a pin seat (81) fixed on one side of the plug housing (11), a pin shaft (82) pivotally mounted on the pin seat (81), a flip cover (83) fixed on the pin shaft (82), and a sealing ring (86) fixed on the inner wall of the flip cover (83); a connector (84) is fixed at the other end of the flip cover (83), and a connecting bolt (85) can screw the connector (84) to the plug housing (11).

7. The metal screw connector according to any one of claims 1-5, characterized in that: On the other side of the plug housing (11), there is a pressure cover (87). The pressure cover (87) can extend at least partially into the opening (12) and be inserted into the plug housing (11). A waterproof ring (80) is provided between the pressure cover (87) and the plug housing (11). The pressure cover (87) and the inner core I (3) are provided with locking grooves (88) on the top and bottom. The socket housing (21) is provided with locking blocks (89) that are adapted to the locking grooves (88).

8. The metal screw connector according to claim 1, characterized in that: The inner core II (5) has accommodating grooves (51) on both sides, and accommodating rocker plate (52) is built into the accommodating groove (51). A locking block (53) is fixed on the accommodating rocker plate (52), and the cross-section of the locking block (53) is a right triangle. An accommodating hole that matches the locking block (53) is fixed on the inner wall of the socket housing (21).

9. The metal screw connector according to claim 8, characterized in that: The terminal II (6) is L-shaped and includes an integrally formed vertical end (61) and a horizontal end (62). The vertical end (61) is in close contact with the side of the inner core II (5), and the horizontal end (62) is in close contact with the end face of the inner core II (5).

10. The metal screw connector according to claim 1, characterized in that: The bottom of the plug housing (11) is fitted with a tail cap (9), and the tail cap (9) is provided with an inwardly bent extension (91) around its perimeter. A receiving groove (92) is provided on the extension (91), and a locking block (93) that can be extended into the receiving groove (92) is provided on the plug housing (11). A baffle (94), a water-blocking ring (95), and a wire clamp (96) are also provided in sequence inside the plug housing (11).

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