High-sealing via connector

Abstract

This utility model discloses a high-sealing through-hole connector, including a housing with a horizontal end and a vertical end. A receiving groove is formed on the horizontal end, and a receiving slot is formed on the vertical end. An inner core I is disposed within the receiving slot, and a terminal I is disposed within the inner core I. A insertion hole is formed on the outer circumferential surface of the inner core I. An inner core II, adapted to the inner core I, is disposed within the receiving slot. An axial limiting structure is provided between the inner core II and the horizontal end. At least a portion of the inner core II extends into the insertion hole, and a terminal II fixedly connected to the terminal I is engaged on it. A circumferential limiting structure is provided between the terminal II and the inner core II. The advantages of this utility model are mainly reflected in its ingenious design. The axial and circumferential limiting structures work together to quickly position and connect the housing, inner core II, and terminal II. 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.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a high-sealing through-hole connector. Background Technology

[0002] Automotive connectors are used to bridge gaps in circuits or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function.

[0003] For example, CN106785766B discloses a 90° bent-terminal shielded electrical connector. In this connector, an insulating mounting plate is placed inside a 90° bent metal housing, and an adapter copper busbar passes through the insulating mounting plate and is connected to the terminal head by screws. An insulating sleeve is fitted over the terminal, and the end face of the shielded adapter contacts the end face of the insulating sleeve. An anti-blocking washer and a sealing body are sequentially placed inside a tail nut, with the head end of the sealing body contacting the tail end of the 90° bent metal housing, and the internal thread of the tail nut connecting to the external thread of the tail end of the 90° bent metal housing. The top cover is connected to the 90° bent metal housing by screws. However, in the above-mentioned design, the cover locking screws may loosen and age under prolonged operation, allowing water, oil, and other substances to seep into the connector through the gap between the top cover and the metal housing, causing damage, affecting service life, and posing safety hazards. In addition, the overall layout of this connector is unreasonable, the structure is complex, and it is not conducive to mass production, thus having significant limitations. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-sealing through-hole connector.

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

[0006] A high-sealing through-hole connector includes a housing with an integrally formed horizontal end and a vertical end. The horizontal end has a receiving groove, and the vertical end has a receiving slot. An inner core I adapted to the receiving slot is disposed within the receiving slot. The inner core I has a terminal I with its central axis parallel to the receiving core, and a insertion hole is formed on the outer circumferential surface of the inner core I. An inner core II adapted to the receiving slot is disposed within the receiving slot. An axial limiting structure is provided between the inner core II and the horizontal end to restrict the axial movement of the inner core II. The inner core II extends at least partially into the insertion hole, and a terminal II fixedly connected to the terminal I is engaged thereon. A circumferential limiting structure is provided between the terminal II and the inner core II to restrict the circumferential rotation of the inner core II.

[0007] Preferably, the axial limiting structure includes at least an opening on the outer circumferential surface of the inner core II, the opening being symmetrically arranged, and symmetrically arranged limiting blocks being fixed on the inner wall of the horizontal end, the minimum distance between the limiting blocks being greater than or equal to the distance between the openings; a limiting groove is formed on one side of the opening, the limiting block can be placed in the limiting groove, and the thickness of the limiting block is equal to the width of the limiting groove.

[0008] Preferably, the circumferential limiting structure includes a plug groove formed on the inner core II, the central axis of the plug groove being parallel to the central axis of the inner core II, and the horizontal portion of the terminal II being placed in the plug groove; a positioning groove is formed at one end of the inner core II, and the vertical portion of the terminal II is placed in the positioning groove and is in a contoured design.

[0009] Preferably, a sealing groove is provided on the horizontal part of the terminal II, and a sealing ring is fitted on the sealing groove, with the outer circumferential surface of the sealing ring abutting against the inner core II.

[0010] Preferably, the inner core II has a waterproof groove, and a waterproof ring I is fitted on the waterproof groove, with the outer circumferential surface of the waterproof ring I abutting against the inner wall of the shell.

[0011] Preferably, a waterproof ring II is fitted on the horizontal end, and the waterproof ring II can abut against the equipment end.

[0012] Preferably, both terminal I and terminal II are provided with connection holes, and a connecting bolt passes through the connection holes to fix terminal I and terminal II together.

[0013] Preferably, the inner core II is further provided with a through groove, one end of which is provided with the connecting bolt, and the other end is provided with a waterproof plug. The waterproof plug is composed of an integrally formed large-diameter end and a small-diameter end. The diameter of the large-diameter end is larger than the diameter of the through groove, and the diameter of the small-diameter end is equal to the diameter of the through groove. A waterproof ring III is also fitted on the small-diameter end.

[0014] Preferably, the inner core I has symmetrically arranged positioning strips inside, and the side of the terminal I abuts against the positioning strips.

[0015] Preferably, the other end of the inner core I is also provided with a water-blocking groove, the water-blocking groove is provided with a water-blocking ring, the outer side of the water-blocking groove is provided with a tail cap, the two sides of the tail cap are provided with slots, the inner core I is provided with a locking block, the locking block can extend into the slot and abut against the tail cap.

[0016] The beneficial effects of this utility model are mainly reflected in:

[0017] 1. The design is ingenious. The axial and circumferential limiting structures work together to quickly position and connect the housing, inner core II, and terminal II. 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. Furthermore, the clever layout of this connection method reduces space occupation, making the connector more compact, applicable to a wider range of situations, and possessing broad applicability.

[0018] 2. The sealing ring and waterproof ring prevent oil, water vapor and dust from seeping into the connector, which greatly improves the sealing effect, enhances safety and extends service life.

[0019] 3. Placing the locking block into the slot allows for quick connection between the tail cap and inner core I. 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. Furthermore, the water-retaining ring reduces the possibility of water, oil, gas, and dust entering, significantly improving the sealing effect and enhancing safety.

[0020] 4. The preload between terminal II and terminal I, which are fixed by connecting 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. Attached Figure Description

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0022] Figure 1 : A perspective view of a preferred embodiment of the present invention;

[0023] Figure 2 : A cross-sectional view of a preferred embodiment of this utility model;

[0024] Figure 3 : A perspective view of the inner core II in the preferred embodiment of this utility model;

[0025] Figure 4 : A perspective view of the shell in a preferred embodiment of this utility model. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 4 As shown, this utility model discloses a high-sealing through-hole connector, including a housing 1. The housing 1 has an integrally formed horizontal end 11 and a vertical end 12. In this preferred embodiment, the horizontal end 11 and the vertical end 12 are integrally injection molded, that is, the housing 1 is an injection molded part. This structure can achieve lightweighting and significantly reduce costs.

[0030] Furthermore, a receiving groove is provided on the vertical end 12, and an inner core I2 adapted to it is provided in the receiving groove. A plug hole 21 is provided on the outer circumference of the inner core I2. A terminal I3 with its central axis parallel to the inner core I2 is provided inside the inner core I2. Specifically, the inner core I2 has symmetrically arranged positioning strips 22 inside, and the side of the terminal I3 abuts against the positioning strips 22. The positioning strips 22 are used to restrict the rearward movement of the terminal I3. The two sides of the terminal I3 abut against the inner core I2, and the top of the terminal I3 abuts against the inner core I2.

[0031] In this embodiment, a water-retaining groove 23 is provided at one end of the inner core I2, and a water-retaining ring 24 is built into the water-retaining groove 23. A tail cap 7 is provided on the outer side of the water-retaining groove 23, and slots 71 are provided on both sides of the tail cap 7. A locking block is provided on the inner core I2, and the locking block can extend into the slot 71 to abut against the tail cap 7. By placing the locking block in the slot, the tail cap and the inner core I2 can be quickly connected. This operation is simple and convenient, requiring no additional positioning or limiting structures, greatly saving costs and facilitating disassembly and installation, thus greatly improving work efficiency. In addition, the water-retaining ring reduces the possibility of water, oil, gas, and dust entering, which can significantly improve the sealing effect and enhance safety.

[0032] A receiving groove is provided on the horizontal end 11, and an inner core II 4 adapted to it is provided in the receiving groove. An axial limiting structure is provided between the inner core II 4 and the horizontal end 11 to restrict the axial movement of the inner core II 4. The axial limiting structure includes at least an opening 41 on the outer circumferential surface of the inner core II 4. The opening 41 is symmetrically arranged. A symmetrically arranged limiting block 43 is fixed on the inner wall of the horizontal end 11. The minimum distance between the limiting blocks 43 is greater than or equal to the distance between the openings 41. A limiting groove 42 is provided on one side of the opening 41. The limiting block 43 can be placed in the limiting groove 42, and the thickness of the limiting block 43 is equal to the width of the limiting groove 42.

[0033] During assembly, align the opening 41 on the inner core II 4 with the limiting block 43, and push the inner core II 4 towards the horizontal end 11 until it abuts against it. At this time, rotate the inner core II 4, and the limiting block 43 can be inserted into the limiting groove 42. This assembly is simple and convenient, easy to disassemble and install, and greatly improves assembly efficiency.

[0034] In this application, the inner core II4 extends at least partially into the insertion hole 21, and a terminal II5 fixedly connected to the terminal I3 is mounted on it. A circumferential limiting structure is provided between the terminal II5 and the inner core II4 to restrict the circumferential rotation of the inner core II4. The circumferential limiting structure includes an insertion groove 44 formed on the inner core II4, the central axis of the insertion groove 44 being parallel to the central axis of the inner core II4, and the horizontal portion 51 of the terminal II5 being placed in the insertion groove 44. A positioning groove 45 is formed at one end of the inner core II4, and the vertical portion 52 of the terminal II5 is placed in the positioning groove 45 and is designed in a contoured manner.

[0035] As described above, the axial and circumferential limiting structures work together to quickly position and connect the housing, inner core II, and terminal II5. 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. Furthermore, this connection method has a clever layout, reducing space occupation and making the connector more compact, with a wider range of applications and greater applicability.

[0036] In this application, a sealing groove 53 is formed on the horizontal portion 51 of terminal II 5, and a sealing ring 54 is fitted on the sealing groove 53. The outer circumferential surface of the sealing ring 54 abuts against the inner core II 4. A waterproof groove 46 is formed on the inner core II 4, and a waterproof ring I 47 is fitted on the waterproof groove 46. The outer circumferential surface of the waterproof ring I 47 abuts against the inner wall of the housing 1. A waterproof ring II 13 is fitted on the horizontal end 11, and the waterproof ring II 13 can abut against the device end. The sealing ring 54 and the waterproof ring prevent the possibility of oil, water vapor and dust penetrating into the connector, which can greatly improve the sealing effect, improve safety and extend service life.

[0037] Both terminal I3 and terminal II5 are provided with connection holes, and a connecting bolt 30 passes through the connection holes to fix terminal I3 and terminal II5 together. The preload between terminal II and terminal I, which are fixed by the connecting bolt 30, is relatively large, the contact resistance is small, and the connection is stable and reliable. As a result, the temperature rise is 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 safety.

[0038] Furthermore, the inner core II 4 is provided with a through groove 48. One end of the through groove 48 is provided with the connecting bolt 30, and the other end is provided with a waterproof plug 6. The waterproof plug 6 is composed of an integrally formed large-diameter end 61 and a small-diameter end 62. The diameter of the large-diameter end 61 is larger than the diameter of the through groove 48, and the diameter of the small-diameter end 62 is equal to the diameter of the through groove 48. A waterproof ring III 63 is also fitted on the small-diameter end 62.

[0039] 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.

[0040] 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 high-sealing-via connector, comprising a shell (1) having an integral horizontal end (11) and a vertical end (12), the horizontal end (11) being provided with a receiving groove, and the vertical end (12) being provided with a containing groove, characterized in that: The receiving groove is provided with an inner core I (2) adapted to it. The inner core I (2) is provided with a terminal I (3) with its central axis parallel to it. A plug hole (21) is opened on the outer circumferential surface of the inner core I (2). The receiving groove is provided with an inner core II (4) adapted to it. An axial limiting structure is provided between the inner core II (4) and the horizontal end (11) to restrict the axial movement of the inner core II (4). The inner core II (4) extends at least partially into the plug hole (21), and a terminal II (5) fixedly connected to the terminal I (3) is clamped on it. A circumferential limiting structure is provided between the terminal II (5) and the inner core II (4) to restrict the circumferential rotation of the inner core II (4).

2. The high-sealing through-hole connector according to claim 1, characterized in that: The axial limiting structure includes at least an opening (41) on the outer circumferential surface of the inner core II (4). The opening (41) is symmetrically arranged. A limiting block (43) is fixed on the inner wall of the horizontal end (11). The minimum distance between the limiting blocks (43) is greater than or equal to the distance between the openings (41). A limiting groove (42) is opened on one side of the opening (41). The limiting block (43) can be placed in the limiting groove (42), and the thickness of the limiting block (43) is equal to the width of the limiting groove (42).

3. The high-sealing through-hole connector according to claim 2, characterized in that: The circumferential limiting structure includes a plug groove (44) opened on the inner core II (4), the central axis of the plug groove (44) is parallel to the central axis of the inner core II (4), and the horizontal part (51) of the terminal II (5) is placed in the plug groove (44); a positioning groove (45) is opened at one end of the inner core II (4), and the vertical part (52) of the terminal II (5) is placed in the positioning groove (45) and is in a contour design.

4. The high-sealing through-hole connector according to claim 3, characterized in that: A sealing groove (53) is provided on the horizontal part (51) of the terminal II (5), and a sealing ring (54) is fitted on the sealing groove (53). The outer circumferential surface of the sealing ring (54) abuts against the inner core II (4).

5. The high-sealing through-hole connector according to claim 3, characterized in that: A waterproof groove (46) is provided on the inner core II (4), and a waterproof ring I (47) is fitted on the waterproof groove (46). The outer circumferential surface of the waterproof ring I (47) abuts against the inner wall of the shell (1).

6. The high-sealing through-hole connector according to claim 3, characterized in that: A waterproof ring II (13) is fitted on the horizontal end (11), and the waterproof ring II (13) can abut against the equipment end.

7. The high-sealing through-hole connector according to claim 3, characterized in that: Both terminal I (3) and terminal II (5) are provided with connection holes, and a connecting bolt (30) passes through the connection holes to fix terminal I (3) and terminal II (5) together.

8. The high-sealing through-hole connector according to claim 7, characterized in that: The inner core II (4) is also provided with a through groove (48). One end of the through groove (48) is provided with the connecting bolt (30), and the other end is provided with a waterproof plug (6). The waterproof plug (6) is composed of an integrally formed large-diameter end (61) and a small-diameter end (62). The diameter of the large-diameter end (61) is larger than the diameter of the through groove (48), and the diameter of the small-diameter end (62) is equal to the diameter of the through groove (48). A waterproof ring III (63) is also provided on the small-diameter end (62).

9. The high-sealing through-hole connector according to claim 8, characterized in that: The inner core I (2) has symmetrically arranged positioning strips (22) inside, and the side of the terminal I (3) abuts against the positioning strips (22).

10. The high-sealing through-hole connector according to claim 9, characterized in that: The other end of the inner core I (2) is also provided with a water-blocking groove (23), the water-blocking groove (23) is provided with a water-blocking ring (24), the outer side of the water-blocking groove (23) is provided with a tail cap (7), the two sides of the tail cap (7) are provided with slots (71), the inner core I (2) is provided with a card block, the card block can extend and be placed in the slot (71) to abut against the tail cap (7).

Images