A high voltage connector assembly for a cable

Abstract

The utility model discloses a high -voltage connector subassembly for cable relates to high -voltage connector field, including plug shell, the inside of this plug shell is provided with the socket shell, the outside of plug shell is provided with the supplementary pair of collets for providing additional lateral force support, prevents the auxiliary connection of loosening or misplacement, and the bottom of socket shell is provided with the bottom fixed cover, and the top of bottom fixed cover is provided with the cable positioning mechanism for preventing cable displacement or pull off, the inside of socket shell is provided with cable, and the outside of cable is equipped with sealing mechanism, to prevent the impurity from invading the inside of socket shell, prevents the phenomenon of electric leakage. The utility model discloses through setting up cable positioning mechanism can be fixed under the effect of snap ring and fix one end of cable, make it firmly fixed on socket shell and prevent cable loosening or falling off, and then can prevent the cable displacement or pull off due to external mechanical tension, vibration or frequent bending.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage connectors, and more specifically, to a high-voltage connector assembly for cables. Background Technology

[0002] High-voltage cables are cables used for the transmission and distribution of high voltage and high current. They are commonly used in the power industry, industrial equipment, railways, transportation, energy and military fields. High-voltage cable connectors are essential components specifically designed to connect cable systems that carry high voltage and current, and they do not perform the function of electrical connection.

[0003] High-voltage connectors for high-voltage cables typically include, but are not limited to, the following components: conductive contacts (contact elements) with low contact resistance and high conductivity; an insulator to isolate the contacts and ensure electrical safety; a housing to protect the internal structure, provide waterproofing and dustproofing, and offer mechanical support with strong impact and vibration resistance; and auxiliary mating structures including guide pins, positioning keyways, and foolproof structures to ensure accurate alignment and safe insertion during the mating process, preventing mis-insertion or poor contact.

[0004] However, existing high-voltage connectors cannot secure cables during application, causing external mechanical stresses such as tension, vibration, and bending to act directly on the crimping area. This can easily lead to conductor loosening and poor contact. Furthermore, during long-term use, unsecured cables may shift due to frequent operation, exacerbating stress concentration and potentially causing cable breakage or insulation damage.

[0005] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a high-voltage connector assembly for cables to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows: A high-voltage connector assembly for cables includes a plug housing with a socket housing inside and an auxiliary mating rod on the outside of the plug housing for providing additional lateral force support to prevent connection loosening or misalignment. The bottom of the socket housing is provided with a bottom fixing cover, and the top of the bottom fixing cover is provided with a cable positioning mechanism to prevent cable displacement or pull-out. The socket housing contains cables, and the outside of the cables is fitted with a sealing mechanism to prevent impurities from entering the socket housing and to prevent leakage.

[0008] Furthermore, in order to connect the high-voltage connector to the target device using fasteners such as bolts under the action of the snap-fit ​​plate, a first snap-fit ​​plate is provided on one side of the plug housing, and a connection end is provided inside the plug housing.

[0009] Furthermore, in order to press and fix one end of the cable under the action of the retaining ring, so as to securely fix it to the socket housing and prevent the cable from loosening or falling off, thereby preventing cable displacement or pull-out caused by external mechanical tension, vibration or frequent bending, ensuring that the crimping area or conductor contact is not affected by tension, and improving the mechanical stability and reliability of the high-voltage connector, the cable positioning mechanism includes a connecting plate installed on one side of the bottom fixing cover. The top of the connecting plate is provided with a first limiting plate, and the inside of the first limiting plate is provided with a sliding plate. A connecting post is provided on one side of the sliding plate, and a second snap-fit ​​plate is provided at the bottom of the connecting post. A retaining ring that cooperates with the cable is provided on one side of the second snap-fit ​​plate. An I-shaped groove is opened inside the first limiting plate, and I-shaped protrusions that cooperate with the I-shaped groove are provided on both sides of the sliding plate. A locking groove is opened on one side of the sliding plate, and a locking block is provided inside the locking groove. A pull rod is provided on one side of the locking block and inside the first limiting plate.

[0010] Furthermore, to increase the friction at the outer connection of the seal under the action of the convex strips, making the sealing mechanism more stable and improving its stability during application, and to increase the sealing performance of the seal under the action of the sealing lip, and to prevent external dust or particulate matter from entering the interior of the seal, thus preventing breakdown, leakage or discharge caused by insulation deterioration, the sealing mechanism includes a second limiting plate installed inside the socket housing and sleeved on the outside of the cable. Sealing elements are symmetrically arranged on both sides of the second limiting plate. The sealing element includes a sealing ring installed inside the socket housing. One side of the sealing ring has several convex strips connected to the inner wall of the socket housing. The other side of the sealing ring has a groove, and several sets of sealing lips are arranged linearly at both ends of the groove, connecting to the outside of the cable. The cross-section of the convex strips is semi-circular, and the convex strips are evenly arranged at equal intervals on the outer circumference of the sealing ring. The sealing lips at both ends of the groove face opposite directions.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model has a simple structure and is easy to operate. It can not only avoid the problem of cables becoming loose or falling off during application, but also increase the sealing of cables during installation, prevent external dust or particulate matter from entering, and prevent breakdown, leakage or discharge caused by insulation deterioration.

[0012] 2. This utility model, by setting a cable positioning mechanism, can press and fix one end of the cable under the action of the fixing ring, so that it is firmly fixed on the socket housing to prevent the cable from loosening or falling off. In this way, it can prevent the cable from being displaced or pulled out due to external mechanical tension, vibration or frequent bending, and ensure that the crimping area or conductor contact is not affected by tension, thereby improving the mechanical stability and reliability of the high-voltage connector.

[0013] 3. By setting a sealing mechanism, this utility model can increase the friction at the outer connection of the sealing component under the action of the convex strip, making the sealing mechanism more stable and improving its stability during application. At the same time, under the action of the sealing lip, the sealing performance of the sealing component can be increased, and external dust or particulate matter can be prevented from entering the interior of the sealing component, preventing breakdown, leakage or discharge caused by insulation deterioration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a high-voltage connector assembly for cables according to an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of a high-voltage connector assembly for cables from another angle according to an embodiment of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the cable positioning mechanism in a high-voltage connector assembly for cables according to an embodiment of the present utility model; Figure 5 This is a cross-sectional view of a cable positioning mechanism in a high-voltage connector assembly for cables according to an embodiment of the present utility model; Figure 6 yes Figure 5 A magnified view of a section at point B in the middle; Figure 7 This is a cross-sectional view of a high-voltage connector assembly for a cable according to an embodiment of the present invention; Figure 8 This is a structural schematic diagram of a sealing mechanism in a high-voltage connector assembly for cables according to an embodiment of the present utility model; Figure 9This is a cross-sectional view of a sealing mechanism in a high-voltage connector assembly for cables according to an embodiment of the present invention; Figure 10 yes Figure 9 A magnified view of a section at point C.

[0016] In the picture: 1. Plug housing; 2. Socket housing; 3. Auxiliary mating rod; 4. Bottom fixing cover; 5. Cable positioning mechanism; 501. Connecting plate; 502. First limiting plate; 503. Sliding plate; 504. Connecting post; 505. Second snap-fit ​​plate; 506. Fixing ring; 507. I-shaped groove; 508. Pulling rod; 509. I-shaped protrusion; 510. Locking groove; 511. Snap-fit ​​block; 6. Cable; 7. Sealing mechanism; 701. Second limiting plate; 702. Sealing element; 7021. Sealing ring; 7022. Protrusion; 7023. Groove; 7024. Sealing lip; 8. First snap-fit ​​plate; 9. Connecting end. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] According to an embodiment of the present invention, a high-voltage connector assembly for cables is provided.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-10 As shown, the high-voltage connector assembly for cables according to an embodiment of the present invention includes a plug housing 1, a socket housing 2 is provided inside the plug housing 1, and an auxiliary mating rod 3 is provided on the outside of the plug housing 1 to provide additional lateral force support and prevent connection loosening or misalignment. The bottom end of the socket housing 2 is provided with a bottom end fixing cover 4, and the top end of the bottom end fixing cover 4 is provided with a cable positioning mechanism 5 for preventing cable displacement or pull-out. The socket housing 2 has a cable 6 inside, and a sealing mechanism 7 is provided on the outside of the cable 6 to prevent impurities from entering the interior of the socket housing 2 and to prevent leakage.

[0020] It should be explained that high-voltage connectors are specialized devices used for safe, stable, and efficient electrical connections between high-voltage cables. In addition to the structure described above, they also include conductive contacts, consisting of male terminals (pins) and female terminals (sockets), which enable the transmission of main current between cables and have low contact resistance and high current carrying capacity; an insulator, an insulating material located around the contacts, which prevents phase-to-phase short circuits or discharge to the housing, improves the system insulation level, and ensures high-voltage safety; a shielding layer interface that ensures electromagnetic shielding continuity, prevents electromagnetic interference (EMI) leakage or coupling, and ensures system electromagnetic compatibility (EMC); and an HVIL safety circuit that is disconnected or closed before contact with the high-voltage system, ensuring that no live operation is performed during insertion and removal, thus improving safety.

[0021] High-voltage cable connectors work together through, but are not limited to, the aforementioned multi-layer structure, and possess key functions such as electrical conduction, mechanical strength, safety protection, adaptability to sealed environments, and electromagnetic control.

[0022] In one embodiment, for the plug housing 1, a first snap-fit ​​plate 8 is provided on one side of the plug housing 1, and a connection end 9 is provided inside the plug housing 1, so that the high-voltage connector is connected to the target device by fasteners such as bolts under the action of the first snap-fit ​​plate 8.

[0023] In one embodiment, the cable positioning mechanism 5 includes a connecting plate 501 mounted on one side of the bottom fixing cover 4. A first limiting plate 502 is provided at the top of the connecting plate 501, and a sliding plate 503 is provided inside the first limiting plate 502. A connecting post 504 is provided on one side of the sliding plate 503, and a second snap-fit ​​plate 505 is provided at the bottom of the connecting post 504. A fixing ring 506 that cooperates with the cable 6 is provided on one side of the second snap-fit ​​plate 505. An I-shaped groove 507 is formed inside the first limiting plate 502, and the sliding plate 503 has grooves on both sides that correspond to the I-shaped groove 507. The sliding plate 503 has a corresponding I-shaped protrusion 509; a slot 510 is provided on one side of the sliding plate 503, and a snap-fit ​​block 511 is provided inside the slot 510; a pull rod 508 is provided on one side of the snap-fit ​​block 511 and inside the first limiting plate 502, so that one end of the cable 6 can be pressed and fixed under the action of the fixing ring 506, so that it is firmly fixed on the socket housing 2 to prevent the cable 6 from loosening or falling off, thereby preventing the cable 6 from being displaced or pulled out due to external mechanical tension, vibration or frequent bending, ensuring that the crimping area or conductor contact is not affected by tension, and improving the mechanical stability and reliability of the high-voltage connector.

[0024] The working principle of the cable positioning mechanism 5 is as follows: After the cable 6 is installed inside the socket housing 2, the locking groove 510 and the locking block 511 are separated. The sliding plate 503 is pushed to move closer to the cable 6 under the cooperation of the I-shaped sliding groove 507 and the I-shaped protrusion 509. After the fixing ring 506 is locked to the outside of the cable 6, the locking block 511 is locked to the locking groove 510, so that the sliding plate 503 is fixed and the cable 6 is fixed. After use, the pulling rod 508 is pulled to separate the locking block 511 from the locking groove 510, contact the fixing of the sliding plate 503, and push the sliding plate 503 in the opposite direction, so as to drive the fixing ring 506 away from the cable 6 and contact the fixing of the cable 6.

[0025] In one embodiment, the sealing mechanism 7 includes a second limiting plate 701 installed inside the socket housing 2 and sleeved on the outside of the cable 6. Sealing elements 702 are symmetrically arranged on both sides of the second limiting plate 701. Each sealing element 702 includes a sealing ring 7021 installed inside the socket housing 2. One side of the sealing ring 7021 has several protrusions 7022 that connect to the inner wall of the socket housing 2. The other side of the sealing ring 7021 has a groove 7023. Several sets of sealing lips 7024 are arranged linearly at both ends of the groove 7023, and the sealing lips 7024 connect to the outside of the cable 6. The cross-section of the protrusion 7022 is set as a semi-circular structure, and several protrusions 7022 are evenly arranged at equal intervals on the outer circumference of the sealing ring 7021. The sealing lips 7024 located at both ends of the groove 7023 are opposite in direction, which can increase the friction at the outer connection of the sealing element 702 under the action of the protrusion 7022, making the sealing mechanism 7 more stable and improving its stability during application. At the same time, under the action of the sealing lips 7024, the sealing performance of the sealing element 702 can be increased, and external dust or particulate matter can be prevented from entering the interior of the sealing element 702, preventing breakdown, leakage or discharge caused by insulation deterioration.

[0026] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0027] In practical applications, high-voltage connectors achieve stable and safe transmission under high voltage and high current environments based on highly reliable electrical connection mechanisms and multiple mechanical cooperation structures. The core of the operation of high-voltage connectors lies in the stable transmission of electrical energy from high-voltage cables between plugs and sockets through highly reliable conductive contacts. Before the plug and socket are mated, the auxiliary mating rod 3 ensures that they can only be inserted in the correct direction and aligned position, effectively preventing mis-insertion and incorrect insertion.

[0028] When the plug is inserted into the socket, the plug housing 1 and the socket housing 2 are mechanically guided and aligned. The pins and the socket are pushed along a precise trajectory to ensure no deviation and no force contact. After the pins are deeply inserted into the socket, the conductive contacts form a tight metal-to-metal contact with a large contact area and low contact resistance, which can carry currents of tens to hundreds of amperes and maintain low heat rise and stable high current transmission. After the plug is inserted, the locking structure (such as threaded connection, snap or push lock) ensures that the mechanical connection between the plug and the socket is secure.

[0029] One end of the high-voltage cable 6 is installed at the cable inlet (i.e., inside the socket housing 2). After installation, the cable positioning mechanism 5 is used to fix one end of the cable 6 to prevent the cable tension from being directly transmitted to the conductor connection area, release stress, and prevent the crimping from loosening or breaking. At the same time, the sealing mechanism 7 can increase the sealing performance between the seal 702 and the cable 6, preventing external dust or particulate matter from entering the interior of the seal 702 and preventing breakdown, leakage or discharge caused by insulation deterioration of the cable 6. After the connection is completed, the internal insulation component isolates each contact from each other to prevent short circuits and insulates the conductor from the outer shell. If a shielding structure is provided, the shielding layer and the housing are reliably grounded to form a continuous electromagnetic shielding path to prevent electromagnetic interference leakage or intrusion. The operating principle of the high-voltage connector is existing technology and will not be elaborated on here.

[0030] In summary, with the help of the above-mentioned technical solution of this utility model, the structure of this utility model is simple and the operation is convenient. It can not only avoid the problem of cable 6 loosening or falling off during application, but also increase the sealing of cable 6 during installation, prevent the intrusion of external dust or particulate matter, and prevent breakdown, leakage or discharge caused by insulation deterioration. This utility model, by setting a cable positioning mechanism 5, can press and fix one end of cable 6 under the action of fixing ring 506, so that it is firmly fixed on the socket housing 2 to prevent cable 6 from loosening or falling off. In addition, it can prevent cable 6 from being displaced or pulled off due to external mechanical tension, vibration or frequent bending, ensure that the crimping area or conductor contact is not affected by tension, and improve the mechanical stability and reliability of high-voltage connector. This utility model, by setting a sealing mechanism 7, can increase the friction at the outer connection of the sealing element 702 under the action of the protruding strip 7022, making the sealing mechanism 7 more stable and improving its stability during application. At the same time, under the action of the sealing lip 7024, the sealing performance of the sealing element 702 can be increased, and external dust or particulate matter can be prevented from entering the interior of the sealing element 702, preventing breakdown, leakage or discharge caused by insulation deterioration.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage connector assembly for cables, comprising a plug housing (1) having a socket housing (2) disposed inside the plug housing (1), characterized in that: The outer side of the plug housing (1) is provided with an auxiliary mating rod (3) for providing additional lateral force support and preventing the connection from becoming loose or misaligned. The bottom end of the socket housing (2) is provided with a bottom end fixing cover (4), and the top end of the bottom end fixing cover (4) is provided with a cable positioning mechanism (5) for preventing cable displacement or pull-out. The socket housing (2) is provided with a cable (6) inside, and a sealing mechanism (7) is provided on the outside of the cable (6) to prevent impurities from entering the interior of the socket housing (2) and to prevent leakage.

2. A high-voltage connector assembly for cables according to claim 1, characterized in that, A first snap-fit ​​plate (8) is provided on one side of the plug housing (1), and a connecting end (9) is provided inside the plug housing (1).

3. A high-voltage connector assembly for cables according to claim 1, characterized in that, The cable positioning mechanism (5) includes a connecting plate (501) installed on one side of the bottom fixing cover (4). A first limiting plate (502) is provided at the top of the connecting plate (501), and a sliding plate (503) is provided inside the first limiting plate (502). A connecting post (504) is provided on one side of the sliding plate (503), and a second snap-fit ​​plate (505) is provided at the bottom end of the connecting post (504). A fixing snap ring (506) that cooperates with the cable (6) is provided on one side of the second snap-fit ​​plate (505).

4. A high-voltage connector assembly for cables according to claim 3, characterized in that, The first limiting plate (502) has an I-shaped groove (507) inside, and the sliding plate (503) has I-shaped protrusions (509) on both sides that cooperate with the I-shaped groove (507). The sliding plate (503) has a slot (510) on one side, and a snap-fit ​​block (511) is provided inside the slot (510). A pull rod (508) is provided on one side of the snap block (511) and inside the first limiting plate (502).

5. A high-voltage connector assembly for cables according to claim 1, characterized in that, The sealing mechanism (7) includes a second limiting plate (701) installed inside the socket housing (2) and sleeved on the outside of the cable (6), and sealing elements (702) are symmetrically arranged on both sides of the second limiting plate (701).

6. A high-voltage connector assembly for cables according to claim 5, characterized in that, The sealing element (702) includes a sealing ring (7021) installed inside the socket housing (2), and one side of the sealing ring (7021) is provided with a plurality of protrusions (7022) that are connected to the inner wall of the socket housing (2). A groove (7023) is provided on the other side of the sealing ring (7021). Several sets of sealing lips (7024) are arranged linearly at both ends of the groove (7023), and the sealing lips (7024) are connected to the outside of the cable (6).

7. A high-voltage connector assembly for cables according to claim 6, characterized in that, The cross-section of the protrusion (7022) is set as a semi-circular structure, and a plurality of the protrusions (7022) are arranged at equal intervals and uniformly on the outer circumference of the sealing ring (7021).

8. A high-voltage connector assembly for cables according to claim 7, characterized in that, The sealing lips (7024) located at both ends of the groove (7023) are oriented in opposite directions.

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