Electric connector

Abstract

The utility model discloses an electric connector, which comprises a first shell, a second shell, a connecting flange, an insulating block, a first electrode, a second electrode, a first cable, a second cable and a cable sealing body, the connecting flange is hermetically connected between the first shell and the second shell, and the insulating block is in threaded adhesion with the inner wall of the connecting flange through low-temperature resin. The first electrode and the second electrode are fixedly connected and penetrate through the insulating block, one end of the first electrode away from the second electrode is connected with a first cable, and one end of the second electrode away from the first electrode is connected with a second cable. The utility model has the advantages that the electric connector avoids leakage, ensures safe and reliable connection of internal and external high-voltage signals at low temperature, and improves the stability and reliability of signal and energy transmission of the electric connector under the working conditions of extremely low temperature, high voltage and high air tightness.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, and particularly relates to an electrical connector. Background Art

[0002] An electrical connector is a device that provides connection and separation functions between electrical terminals and bears signals and transmits energy. It is an indispensable electrical connector in the electrical center. In advanced technology systems such as aviation, aerospace, and nuclear energy, it is required that the electrical connector must adapt to various complex and harsh working environmental conditions, such as resistance to high and low temperatures, high and low air pressures, high impact and vibration, and low outgassing.

[0003] At present, domestic electrical connector products for the room temperature range have been relatively mature. Ordinary electrical connectors developed for room temperature conditions will have many fault problems in low temperature environments, such as signal instantaneous interruption, leakage, etc. The reason is that in harsh working environments such as low temperature, low air pressure, and high voltage, the airtightness of the electrical connector at low temperature and the Paschen discharge performance at low air pressure are greatly reduced. The existing design and manufacturing process of electrical connectors still adopts the traditional design idea, and its sealing performance is still unstable and needs to be improved urgently. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is how to improve the stability and reliability of signal and energy transmission of the electrical connector under extremely low temperature, high voltage, and high airtightness working conditions.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] An electrical connector includes a first housing, a second housing, a connecting flange, an insulating block, a first electrode, a second electrode, a first cable, a second cable, and a cable sealing body. The connecting flange is hermetically connected between the first housing and the second housing. The insulating block is thread-bonded to the inner wall of the connecting flange through low-temperature resin. The first electrode and the second electrode are fixedly connected and then penetrate through the insulating block, and the first electrode extending into the insulating block is thread-bonded to the insulating block through low-temperature resin, and the second electrode extending into the insulating block is thread-bonded to the insulating block through low-temperature resin. One end of the first electrode away from the second electrode is connected to the first cable extending into the first housing, and one end of the second electrode away from the first electrode is connected to the second cable extending into the second housing.

[0007] Through structural optimization design and sealing design, the electrical connector avoids leakage, realizes ensuring safe and reliable connection of internal and external high-voltage signals at low temperature, and improves the stability and reliability of signal and energy transmission of the electrical connector under extremely low temperature, high voltage, and high airtightness working conditions.

[0008] Preferably, the connecting flange is fixedly welded to the first housing and the second housing.

[0009] Preferably, the insulating block is made of G10 material.

[0010] Preferably, a plurality of threaded holes are provided on the insulating block, so that the first electrode and the second electrode can be threadedly bonded to the threaded holes.

[0011] Preferably, the threaded holes are stepped threaded holes, and the first electrode is threadedly bonded to the small-diameter end, and the second electrode is threadedly bonded to the large-diameter end.

[0012] Preferably, the threaded holes are evenly distributed in a circle along the center of the insulating block.

[0013] Preferably, the first electrode and the second electrode are welded and fixed.

[0014] Preferably, the cable sealing body is integrally cast low-temperature epoxy resin.

[0015] Preferably, the second electrode is a copper connecting sleeve.

[0016] Preferably, both the first housing and the second housing are stainless steel cylinders.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] Through structural optimization design and sealing design, the electrical connector avoids leakage, realizes ensuring safe and reliable connection of internal and external high-voltage signals at low temperatures, and improves the stability and reliability of signal and energy transmission of the electrical connector under extremely low temperature, high voltage and high airtightness working conditions. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model. Detailed Embodiments

[0020] To facilitate those skilled in the art to understand the technical solution of the present utility model, the technical solution of the present utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0021] In this application, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0022] In this application, unless otherwise clearly specified and defined, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise clearly and specifically defined.

[0023] Referring to Figure 1 , this embodiment discloses an electrical connector, which includes a first housing 1, a second housing 2, a connecting flange 3, an insulating block 4, a first electrode 5, a second electrode 6, a first cable 7, a second cable 8, and a cable sealing body 9.

[0024] In this embodiment, both the first housing 1 and the second housing 2 are stainless steel cylinders, and the connecting flange 3 is sealed and welded between the first housing 1 and the second housing 2.

[0025] The insulating block 4 is made of G10 material. The insulating block 4 is thread-bonded to the inner wall of the connecting flange through a low-temperature resin. After the first electrode 5 and the second electrode 6 are welded and fixed, they penetrate through the insulating block 4, and the first electrode 5 extending into the insulating block 4 is thread-bonded to the insulating block 4 through a low-temperature resin, and the second electrode 6 extending into the insulating block 4 is thread-bonded to the insulating block 4 through a low-temperature resin. One end of the first electrode 5 away from the second electrode 6 is connected to the first cable 7 extending into the first housing 1, and one end of the second electrode 6 away from the first electrode 5 is connected to the second cable 8 extending into the second housing 2.

[0026] Specifically, a plurality of threaded holes are evenly distributed in a circumferential manner along the center of the insulating block 4, so that the first electrode 5 and the second electrode 6 can be thread-bonded to the threaded holes.

[0027] Further, the threaded holes are stepped threaded holes. The small-diameter end is thread-bonded to the first electrode 5, and the large-diameter end is thread-bonded to the second electrode 6.

[0028] Through the setting of the insulating block 4, the interference of irrelevant electromagnetic signals can be shielded, and the space can be saved due to the need to design multiple sealing rubber rings for multiple wire harnesses, the assembly efficiency can be improved, and the function of sealing the wire harness and the housing can be achieved.

[0029] In this embodiment, the second electrode 6 is a copper connecting sleeve.

[0030] Cable sealing bodies 9 are provided at the connection between the first electrode 5 and the first cable 7 and at the connection between the second electrode 6 and the second cable 8. The cable sealing bodies 9 are integrally cast low-temperature epoxy resins, which further improve the sealing performance of the electrical connector.

[0031] Specifically, after testing, the performance of this electrical connector is as follows:

[0032] 1. Withstand voltage: At room temperature, the medium gas is air, and the withstand voltage is greater than 30kV;

[0033] 2. Vacuum leakage rate: At room temperature, the leakage rate is <10-9Pa m3 / s;

[0034] 3. Paschen-DC: 21kV, in helium atmosphere (1, 10, 100, 1000, 10000Pa), 10kV / / min.

[0035] The installation process of this embodiment is: first, the first electrode 5 and the second electrode 6 are welded and fixed to form an electrode structure, and then the electrode structure is passed through the stepped threaded hole on the insulating block 4, the first electrode 5 is bonded to the small-diameter end thread, and the second electrode 6 is bonded to the large-diameter end thread, and then the connecting flange 3 is bonded to the outer wall of the insulating block 4 through a low-temperature resin thread, and then, the first cable 7 and the second cable 8 are correspondingly inserted into the first shell 1 and the second shell 2, and then the first electrode 5 and the first cable 7 are welded and fixed, and the second electrode 6 and the second cable 8 are welded, and then the first shell 1 and the second shell 2 and the connecting flange 3 are welded and fixed, and finally, low-temperature epoxy resin is poured into the connection between the first electrode 5 and the first cable 7 in the first shell 1, and after the low-temperature epoxy resin is cured to form a cable sealing body 9, low-temperature epoxy resin is poured into the connection between the second electrode 6 and the second cable 8 in the second shell 2, and the low-temperature epoxy resin is cured to form a cable sealing body 9, and the installation of the electrical connector is completed.

[0036] In summary, the electrical connector avoids leakage through structural optimization design and sealing design, ensuring safe and reliable connection of internal and external high-voltage signals at low temperatures, and improving the stability and reliability of signal and energy transmission of the electrical connector under extremely low temperature, high voltage and high airtightness conditions.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. An electrical connector, characterized in that: It includes a first housing, a second housing, a connecting flange, an insulating block, a first electrode, a second electrode, a first cable, a second cable, and a cable sealing body. The connecting flange is hermetically connected between the first housing and the second housing. The insulating block is thread-bonded to the inner wall of the connecting flange through a low-temperature resin. The first electrode and the second electrode are fixedly connected and then penetrate through the insulating block. The first electrode extending into the insulating block is thread-bonded to the insulating block through a low-temperature resin, and the second electrode extending into the insulating block is thread-bonded to the insulating block through a low-temperature resin. One end of the first electrode away from the second electrode is connected to the first cable extending into the first housing, and one end of the second electrode away from the first electrode is connected to the second cable extending into the second housing.

2. The electrical connector according to claim 1, wherein: The connecting flange is fixedly welded to the first housing and the second housing.

3. The electrical connector according to claim 1, characterized in that: The insulating block is made of G10 material.

4. An electrical connector according to claim 1, characterized in that: A plurality of threaded holes are provided on the insulating block, so that the first electrode and the second electrode can be thread-bonded to the threaded holes.

5. An electrical connector according to claim 4, characterized in that: The threaded holes are stepped threaded holes. The small-diameter end is thread-bonded to the first electrode, and the large-diameter end is thread-bonded to the second electrode.

6. An electrical connector according to claim 4, wherein: The threaded holes are evenly distributed in a circle along the center of the insulating block.

7. An electrical connector according to claim 1, wherein: The first electrode and the second electrode are fixedly welded.

8. An electrical connector according to claim 1, characterized in that: The cable sealing body is a low-temperature epoxy resin cast integrally.

9. An electrical connector according to claim 1, characterized in that: The second electrode is a copper connecting sleeve.

10. An electrical connector according to claim 1, characterized in that: Both the first housing and the second housing are stainless steel cylinders.

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