High voltage connector

Abstract

The present invention discloses a high-voltage connector, which is characterized by comprising a joint body, a sealing ring and a shielding member; the joint body is an integrated structure and is divided into an upper tube body and a lower tube body along its axial direction, the inner wall of the upper tube body has an assembly groove with two ends limited, the outer wall of the lower tube body has a connecting thread, and the inner wall has a limiting step; the sealing ring is axially limited and assembled in the assembly groove; the shielding member is assembled in the lower tube body, and the upper end of the shielding member can abut against the limiting step. The present invention can improve both installation efficiency and installation stability.

Description

Technical Field

[0001] The invention relates to the field of cable connection protection, and more particularly to a high-voltage connector. Background Art

[0002] Nowadays, electromagnetic compatibility cable connectors are widely used. They are mainly used in nuclear power plants, railways, communications, petrochemicals, passenger cars, electric power and other fields. Its main function is to connect and fix cables while ensuring their high requirements for waterproof performance, flame retardant performance and electromagnetic compatibility. This effectively forms long-term and stable protection for cables and equipment. The metal casing of electrical equipment, reinforced concrete poles and metal pole towers, etc., may be energized due to insulation damage. The grounding designed to prevent this voltage from endangering personal safety is called protective grounding. Protective grounding is the most commonly used security measure for electrical equipment and electrical lines in low-voltage distribution systems with ungrounded neutral points and high-voltage power systems.

[0003] like Figure 4 The figure shows a cable connector in the prior art, which is mainly assembled by a connector body 5, a connector cap 6 and a sealing ring 4. The connector cap is threadedly connected to the end of the connector body to define the sealing ring. The cable connector of this structure has the following defects during use:

[0004] a. The installation is inconvenient. The connector body needs to be screwed onto the box and then the cable is inserted and locked, which is time-consuming.

[0005] b. You need to know the tightening torque and control the torque size to achieve the corresponding waterproof level;

[0006] c. There is a situation of heel rotation, which causes the joint cap to be unable to be effectively tightened and fixed on the joint body or the joint body to the box. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a high-voltage connector that can improve both installation efficiency and installation stability.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A high voltage connector, characterized by comprising a connector body, a sealing ring and a shielding member;

[0010] The joint body is an integrated structure and is divided into an upper tube body and a lower tube body along its axial direction. The inner wall of the upper tube body is provided with an assembly groove with two ends limited, and the outer wall of the lower tube body is provided with a connecting thread and a limit step on the inner wall;

[0011] The sealing ring is axially limited and assembled in the assembly groove;

[0012] The shielding member is assembled in the lower tube body, and the upper end of the shielding member can abut against the limiting step.

[0013] Preferably, the shielding member comprises a shielding ring and a spring, wherein the spring is assembled on the outer wall of the shielding ring in an annular state to form elastic support for the shielding ring in the lower tube body.

[0014] Preferably, the outer side wall of the shielding ring has an annular groove which is concentric with the shielding ring and for assembling the spring.

[0015] Preferably, a hexagonal surface is formed on the outer wall of the joint body.

[0016] Preferably, the diameter of the upper tube body is greater than the diameter of the lower tube body and forms an outer step.

[0017] Preferably, a sealing groove is provided on the step surface of the outer step, and a sealing ring is arranged in the sealing groove.

[0018] The advantages of the present invention are:

[0019] 1. Solved the problem of heel-turn rotation during installation, making installation easier and improving installation stability;

[0020] 2. Simple structure, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of the high voltage connector provided in this embodiment;

[0022] Figure 2 A schematic diagram of a high voltage connector provided in this embodiment;

[0023] Figure 3 A cross-sectional view of a connector body provided in this embodiment;

[0024] Figure 4 It is a structural schematic diagram of a cable connector in the prior art. DETAILED DESCRIPTION

[0025] Combination Figures 1 to 3 The high voltage connector of the present invention is further described.

[0026] A high-voltage connector, characterized in that it includes a connector body 1, a sealing ring 2 and a shielding member 3. The connector body 1 is an integrated tubular structure, which is divided into an upper tube body 11 and a lower tube body 12 along its axial direction. The inner wall of the upper tube body 11 has an assembly groove 111 with two ends limited, that is, there are limiting walls on the upper and lower sides of the assembly groove 111, and the outer wall of the lower tube body 12 has a connecting thread 121, and the inner wall has a limiting step 122. The sealing ring 2 is embedded in the assembly groove 111, and the two ends of the sealing ring 2 respectively abut against the limiting walls on both sides of the assembly groove 111 to achieve the effect of axial limiting. The shielding member 3 is assembled in the lower tube body 12, and the upper end of the shielding member 3 can abut against the limiting step 122.

[0027] Based on the above structure, during actual installation, the cable is passed through the connector body 1 embedded with a sealing ring and the shielding member 3, and then the cable is compressed using the shielding member 3; the connector body 1 is rotated and fixed to the box body through the connecting thread 121, and at the same time, the end of the shielding member 3 abuts against the inner step 122 to prevent the cable from being pulled out. Not only is the operation simple, but also during the operation, since the connector body 1 is an integrated structure, there is no problem of heel rotation during the tightening process, that is, there is no need to consider the problem of interference between the tightening torques of the two threads, and the connector body 1 can be tightened to the box body with high pressure and stability.

[0028] The shielding member 3 includes a shielding ring 31 and a spring 32, wherein the spring 32 is assembled on the outer wall of the shielding ring 31 in an annular state to form an elastic support for the shielding ring 31 in the lower tube body 12. This structure can facilitate the fixing of the shielding ring 31 in the lower tube body 12, facilitate the rotation of the shielding ring 31 relative to the joint body 1, and avoid the problem of abrasion of the inner wall of the lower tube body during the rotation process, so as to facilitate the installation of the whole process.

[0029] The outer wall of the shielding ring 31 has an annular groove 311 which is concentric with the shielding ring 31 and for assembling the spring 32. The annular groove 311 can position the spring 32 on the shielding ring 31, thereby improving the stability of the shielding ring 31 in the lower tube body 12.

[0030] The outer wall of the upper tube body 11 is formed with a hexagonal surface 113. The setting of the hexagonal surface 113 can facilitate the wrench to rotate the joint body 1, thereby facilitating the joint body 1 to be tightened on the box body.

[0031] The diameter of the upper tube 11 is larger than that of the lower tube 12 and forms an outer step 114. When the joint body 1 is tightened on the box, the outer step 114 can abut against the box, which can not only indicate that the joint body 1 has been tightened, but also improve the stability of the joint body 1.

[0032] The step surface of the outer step is provided with a sealing groove 13, and a sealing ring 14 is arranged in the sealing groove 13. The arrangement of the sealing ring 14 can achieve a waterproof effect.

[0033] The width of the sealing groove 13 gradually decreases from the notch 131 to the groove bottom 132. When the joint body 1 is tightened, the side wall of the box body squeezes the sealing ring 14 into the groove bottom position, so that the sealing ring 14 fits tightly with the groove wall of the sealing groove 13, significantly improving the waterproof effect.

[0034] Unless otherwise specified, in the present invention, the terms "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the accompanying drawings and according to specific circumstances.

[0035] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high voltage connector, characterized in that: It includes a joint body, a sealing ring and a shielding member; The joint body is an integrated structure and is divided into an upper tube body and a lower tube body along its axial direction. The inner wall of the upper tube body has an assembly groove with two ends limited, and the outer wall of the lower tube body has a connecting thread and a limit step on the inner wall; The sealing ring is axially limited and assembled in the assembly groove; The shielding member is assembled in the lower tube body, and the upper end of the shielding member can abut against the limiting step; The shielding member includes a shielding ring and a spring, wherein the spring is assembled on the outer wall of the shielding ring in an annular state to form an elastic support for the shielding ring in the lower tube body, and the outer wall of the shielding ring is provided with an annular groove which is concentric with the shielding ring and for assembling the spring; The diameter of the upper tube body is greater than that of the lower tube body and forms an outer step, a sealing groove is provided on the step surface of the outer step, a sealing ring is arranged in the sealing groove, and the width of the sealing groove gradually decreases from the notch to the bottom of the groove.

2. The high voltage connector according to claim 1, characterized in that: A hexagonal surface is formed on the outer wall of the joint body.

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