A non-magnetic power connector

Abstract

The utility model relates to connector technical field especially a kind of non-magnetic power connector, comprising: the male seat of first terminal and the female seat with second terminal built-in are installed, the first terminal and the second terminal are inserted;The second terminal includes fixed part, the connecting part shaped in the fixed part both sides and two clamping arm parts, the end face of the clamping arm part is formed with cleaning protrusion, the first terminal is inserted between two the cleaning protrusion, in the utility model, by using the design of the first terminal of non-magnetic stainless steel piece and the second terminal of phosphor bronze piece, to ensure zero magnetic interference, to meet the non-magnetic in nuclear magnetic resonance equipment, simultaneously, by the design of integrating cleaning protrusion on the second terminal, can realize the self-cleaning operation of first terminal in the process of first terminal insertion, so it can ensure the connection stability of first terminal and second terminal, to greatly optimize the reliability and applicability of existing connector.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a non-magnetic power connector. Background Technology

[0002] Nuclear magnetic resonance (NMR) equipment relies on strong static magnetic fields for imaging and is extremely sensitive to magnetic field stability. Its core superconducting magnet requires extremely high magnetic field homogeneity; any interference will lead to a degradation in image quality. The equipment requires a large amount of electricity to operate, which is supplied via a power connector.

[0003] However, conventional metal connectors, which are usually made of ferromagnetic materials such as stainless steel, can distort the precise magnetic field inside the device and affect imaging accuracy. In addition, in actual use, since the male terminals of the connector are exposed, their surfaces are very prone to adhering to dust, fibers or other tiny contaminants. These contaminants can significantly increase contact resistance and lead to unstable conductivity.

[0004] Based on this, in order to improve the applicability and connection reliability of existing power connectors, we propose a non-magnetic power connector. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the exposed male terminals of connectors making them prone to dust, fibers, or other minute contaminants adhering to their surfaces, which significantly increases contact resistance and leads to unstable conductivity. Therefore, this invention proposes a non-magnetic power connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a non-magnetic power connector, including: A male connector with a first terminal and a female connector with a built-in second terminal are connected together; The second terminal includes a fixing part, a connecting part formed on both sides of the fixing part, and two clamping arms. A cleaning protrusion is formed on the end face of the clamping arms, and the first terminal is inserted between the two cleaning protrusions.

[0007] Furthermore, a plug-in position is formed on the end face of the male connector, and the first terminal is fixed in the plug-in position. A sealing sleeve is also fitted on the outside of the plug-in position.

[0008] Furthermore, a stop plate is formed on the end face of the female seat, and a sealing ring is provided on the outer side of the female seat and at the back end of the stop plate.

[0009] Furthermore, the tail end of the clamping arm has an L-shaped portion, and the cleaning protrusion is formed by pressing the middle of the L-shaped portion along its outer periphery.

[0010] Furthermore, a tail cover is fixedly installed at the tail end of the female seat, and the tail cover has a receiving groove in the middle, which is directly opposite the two clamping arms.

[0011] Furthermore, the male connector is fixed to the plug housing, and the female connector is fixed to the power supply housing.

[0012] Furthermore, a trigger cavity is formed inside the female connector, in which a trigger terminal and a fixed terminal are fixedly installed. The trigger terminal has an elastic hinge arm, the tail end of which is located below the fixed terminal. Inside the trigger cavity, a trigger rod fixed to the plug housing is slidably connected, and the trigger rod abuts against the elastic hinge arm, making it contact the fixed terminal.

[0013] Furthermore, the first terminal is a non-magnetic stainless steel part with a nickel-plated layer on its surface, and the second terminal is a phosphor bronze part with a gold-plated layer on its surface.

[0014] The present invention proposes a non-magnetic power connector, which has the following advantages: By using a non-magnetic stainless steel first terminal and a phosphor bronze second terminal, the present invention ensures zero magnetic interference, thereby meeting the non-magnetic requirement in nuclear magnetic resonance equipment. At the same time, by integrating a cleaning protrusion on the second terminal, a self-cleaning operation can be achieved on the first terminal during insertion. This ensures the connection stability of the first and second terminals, thereby greatly optimizing the reliability and applicability of existing connectors. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the trigger rod structure of this utility model; Figure 4 This is a schematic diagram of the cleaning protrusion structure of this utility model.

[0016] In the diagram: 1. Male connector; 10. First terminal; 11. Insertion position; 12. Sealing sleeve; 2. Female connector; 20. Second terminal; 21. Fixing part; 22. Connecting part; 23. Clamping arm part; 231. L-shaped part; 24. Cleaning protrusion; 25. Stop platform; 26. Sealing ring; 27. Tail cap; 271. Receiving groove; 28. Trigger chamber; 29. ​​Trigger terminal; 210. Fixing terminal; 211. Elastic folding arm; 3. Trigger rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-4 As one embodiment of this utility model, a non-magnetic power connector is disclosed. Specifically, the connector includes a male socket 1 with a first terminal 10 installed and a female socket 2 with a second terminal 20 built in. In this embodiment, there are two first terminals 10. Similarly, two second terminals 20 should be configured on the female socket 2. The female socket 2 is provided with a socket corresponding to the second terminal 20. It should be noted that in this embodiment, the male connector 1 is fixed on the plug housing, and the female connector 2 is fixed on the power supply housing. The two housings are not shown in the figure. The female connector 2 should be connected to the power supply. The male connector 1 is connected to the power supply equipment. When connecting, the plug housing, together with the male connector 1 and the female connector 2 on the power supply housing, are plugged in to complete the electrical conduction. Of course, in this embodiment, both the male connector 1 and the female connector 2 are made of plastic housing. The first terminal 10 and the second terminal 20 are connected. Specifically, in this embodiment, the first terminal 10 is a non-magnetic stainless steel part with a nickel-plated layer on its surface, and the second terminal 20 is a phosphor bronze part with a gold-plated layer on its surface. The design of the non-magnetic stainless steel part and the phosphor bronze part ensures zero magnetic interference, thereby meeting the non-magnetic requirement in the nuclear magnetic resonance equipment.

[0019] The second terminal 20 includes a fixing part 21, a connecting part 22 formed on both sides of the fixing part 21, and two clamping arms 23. A cleaning protrusion 24 is formed on the end face of the clamping arm 23, and the first terminal 10 is inserted between the two cleaning protrusions 24.

[0020] In some embodiments, the male connector 1 of the present invention has a plug-in position 11 formed on its end face, and the first terminal 10 is fixed in the plug-in position 11. A sealing sleeve 12 is also fitted on the outside of the plug-in position 11. The sealing sleeve 12 is used to connect and seal with the plug housing, thereby improving the connection sealing between the male connector 1 and the plug housing.

[0021] Similarly, in order to achieve a tight seal between the female connector 2 and the power supply housing, a stop plate 25 is formed on the end face of the female connector 2 in this invention. A sealing ring 26 is provided on the outer side of the female connector 2 and at the back end of the stop plate 25. That is, during installation, the female connector 2 can be fixed on the power supply housing, and the stop plate 25 positions and stops the insertion position of the female connector 2. The design of the sealing ring 26 is used to ensure the tight seal between the female connector 2 and the power supply housing, thereby meeting the waterproof requirements of the nuclear magnetic resonance equipment.

[0022] It should be noted that the tail end of the clamping arm 23 in this embodiment has an L-shaped part 231. The cleaning protrusion 24 is formed by pressing the middle part of the L-shaped part 231 along its outer periphery. Obviously, in this embodiment, the cleaning protrusion 24 is also set as an L-shaped structure, which is used to fit the two sides of the first terminal 10. When the first terminal 10 is inserted and pulled out, it is closely fitted and scraped by the cleaning protrusion 24 on both sides to achieve self-cleaning of the surface of the first terminal 10, thereby improving the stability of the electrical connection.

[0023] It should be noted that, in this embodiment, a tail cover 27 is fixedly installed at the tail end of the female connector 2. The tail cover 27 has a receiving groove 271 in the middle, and the receiving groove 271 is directly opposite the two clamping arms 23. Of course, in this embodiment, the connecting part 22 of the second terminal 20 passes through the tail cover 27. The tail cover 27 can be fixed to the rear side of the female connector 2 by means of adhesive or bolt. By opening the receiving groove 271 on the end face of the tail cover 27, the dust that is cleaned can be collected when the first terminal 10 is inserted or pulled out. Of course, the tail cover 27 can also be opened later to facilitate the discharge of dust.

[0024] In some embodiments, a trigger cavity 28 is formed inside the female seat 2 in this invention. A trigger terminal 29 and a fixed terminal 210 are fixedly installed in the trigger cavity 28. The trigger terminal 29 and the fixed terminal 210 also penetrate the tail cover 27 mentioned above. The trigger terminal 29 has an elastic hinge arm 211, the tail end of which is located below the fixed terminal 210. Inside the trigger cavity 28, a trigger rod 3 fixed to the plug housing is slidably connected. The trigger rod 3 abuts against the elastic hinge arm 211, making it contact the fixed terminal 210.

[0025] In this invention, when the plug housing is connected to the female socket 2, its first terminal 10 and second terminal 20 are inserted and conductive. At the same time, the trigger rod 3 on the end face of the plug housing is inserted into the trigger cavity 28. At this time, the trigger rod 3 will abut against the elastic folding arm 211 at the tail end of the trigger terminal 29 and deform upward. When the elastic folding arm 211 moves upward and contacts the fixed terminal 210, the fixed terminal 210 and the trigger terminal 29 are electrically connected. With this design, the fixed terminal 210 and the trigger terminal 29 can be connected to the control unit to determine whether the first terminal 10 in the plug housing is fully inserted, thus avoiding the phenomenon of incomplete insertion.

[0026] In summary, this invention employs a first terminal 10 made of non-magnetic stainless steel and a second terminal 20 made of phosphor bronze to ensure zero magnetic interference, thereby meeting the non-magnetic requirement in nuclear magnetic resonance equipment. At the same time, by integrating a cleaning protrusion 24 on the second terminal 20, a self-cleaning operation can be achieved on the first terminal 10 during insertion. This ensures the connection stability of the first terminal 10 and the second terminal 20, thereby greatly optimizing the reliability and applicability of existing connectors.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A non-magnetic power connector, characterized by, include: A male connector (1) with a first terminal (10) and a female connector (2) with a second terminal (20) are installed, wherein the first terminal (10) and the second terminal (20) are plugged into each other; The second terminal (20) includes a fixing part (21), a connecting part (22) formed on both sides of the fixing part (21) and two clamping arms (23). A cleaning protrusion (24) is formed on the end face of the clamping arm (23), and the first terminal (10) is inserted between the two cleaning protrusions (24).

2. A magnetically non-interactive power connector according to claim 1, wherein: The male seat (1) has a plug-in position (11) formed on its end face. The first terminal (10) is fixed in the plug-in position (11). A sealing sleeve (12) is also fitted on the outside of the plug-in position (11).

3. A magnetically neutral power connector according to claim 1, wherein: A stop plate (25) is formed on the end face of the female seat (2), and a sealing ring (26) is provided on the outside of the female seat (2) and at the back end of the stop plate (25).

4. A magnetically neutral power connector according to claim 1, wherein: The tail end of the clamping arm (23) has an L-shaped part (231), and the cleaning protrusion (24) is formed by pressing the middle part of the L-shaped part (231) along its outer periphery.

5. A magnetically neutral power connector according to claim 1, wherein: The tail end of the female seat (2) is fixedly installed with a tail cover (27), and the tail cover (27) has a receiving groove (271) in the middle, which is directly opposite the two clamping arms (23).

6. A magnetically neutral power connector according to claim 1, wherein: The male connector (1) is fixed to the plug housing, and the female connector (2) is fixed to the power supply housing.

7. A magnetically neutral power connector according to claim 1, wherein: Inside the female connector (2), a trigger cavity (28) is formed. A trigger terminal (29) and a fixed terminal (210) are fixedly installed in the trigger cavity (28). The trigger terminal (29) has an elastic folding arm (211). The tail end of the elastic folding arm (211) is located below the fixed terminal (210). Inside the trigger cavity (28), a trigger rod (3) fixed to the plug housing is slidably connected. The trigger rod (3) abuts against the elastic folding arm (211) so that it contacts the fixed terminal (210).

8. A magnetically non-interactive power connector according to any one of claims 1-7, characterized in that: The first terminal (10) is a non-magnetic stainless steel part with a nickel-plated layer on its surface, and the second terminal (20) is a phosphor bronze part with a gold-plated layer on its surface.

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