High-power strong-current reliable plugging device

Abstract

The utility model discloses a high-power strong-current reliable plugging device, which comprises a male connector and a female connector, the male connector is connected with the female connector in a plugging manner, and a flexible connecting assembly is arranged between the male connector and the female connector. The flexible connecting assembly comprises an insulating sleeve filled between the male connector and the female connector, and a plurality of elastic conductive parts arranged in the insulating sleeve; when the male connector and the female connector are plugged, the male connector and the female connector are conductively connected through the elastic conductive part. The elastic conductive parts can be uniformly distributed between the male connector and the female connector as many as possible, so that the current can pass through the male connector and the female connector more uniformly to enhance the current bearing capacity, the heat dissipation efficiency is improved through the connection of the elastic points as many as possible, and more heat generated by high current can be conducted and dissipated; and the current bearing capacity is further enhanced.

Description

Technical Field

[0001] The utility model relates to the field of electronic devices, in particular to a high-power, high-current reliable plug-in device. Background Art

[0002] With the explosive growth of the electric vehicle market, high-current transmission on-board connectors specifically for electric vehicles and charging infrastructure, as well as high-power connectors for fast charging, have become key components. On-board connectors also need to have high reliability, such as high heat resistance, vibration resistance, and long life.

[0003] Renewable energy systems such as wind and solar power generation need to handle high power transmission from power generation devices to the power grid. Connector technology becomes critical in such applications, especially for connectors used for long periods of time in harsh outdoor environments, which require higher reliability.

[0004] 5G base stations require high-power and high-frequency signal transmission, driving demand for high-power, high-frequency connectors. These connectors must not only support high currents but also exhibit excellent signal transmission performance. High-power, high-current, and highly reliable connectors are key components for transmitting power and signals in high-power applications and are widely used in power electronics, aerospace, automotive, e-mobility, industrial automation, and communications.

[0005] However, some connectors only have multiple points of contact, which occur only at the female connector's elastic or spring-loaded tabs, forming a rigid, elastic connection with the male connector. This limits the number of multi-point contacts, limiting the reduction in total equivalent contact resistance and, consequently, limiting high-power carrying capacity. Under frequent plugging and unplugging, prolonged high-power, high-current operation, and harsh operating environments, the limited number of contact points can lead to reliability issues such as poor contact due to high uniformly distributed power and low heat conduction efficiency. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a reliable plug-in device with high power and high current.

[0007] The technical solution adopted by the utility model to solve its technical problems is: constructing a high-power, high-current reliable plug-in device, including a male connector and a female connector, the male connector and the female connector are plug-connected, a flexible connection component is arranged between the male connector and the female connector, the flexible connection component includes an insulating sleeve filled between the male connector and the female connector, and a plurality of elastic conductive parts arranged in the insulating sleeve; when the male connector and the female connector are plugged together, they are electrically connected through the elastic conductive parts.

[0008] In some embodiments, the insulating sleeve includes opposing inner and outer surfaces;

[0009] Each of the elastic conductive members is disposed throughout the insulating sleeve, and a first end of each of the elastic conductive members is exposed on the inner surface and is conductively connected to the male connector, and a second end of each of the elastic conductive members is exposed on the outer surface and is conductively connected to the female connector.

[0010] In some embodiments, the insulating sleeve is an elastic insulating sleeve.

[0011] In some embodiments, the first end and the second end of each elastic conductive member are arranged to protrude from the inner surface and the outer surface at a set height.

[0012] In some embodiments, the flexible connection component is wrapped around the male connector; or

[0013] The flexible connection assembly fits inside the female connector.

[0014] In some embodiments, the elastic conductive members are arranged on the insulating sleeve in an array along the circumference of the male connector axis; or

[0015] The elastic conductive members are arranged in a spiral pattern and spaced apart on the insulating sleeve.

[0016] In some embodiments, the elastic conductive member includes a cylindrical conductive body, and a cross section of the conductive body perpendicular to the male connector is an arc shape; or

[0017] The elastic conductive member includes a spiral wire and connection blocks fixedly arranged at both ends of the spiral wire. The spiral wire is embedded in the insulating sleeve. The connection blocks at both ends are conductively connected to the male connector and the female connector respectively.

[0018] In some embodiments, a filling portion is provided at the top end of the insulating sleeve to fill the gap between the end portions of the male connector and the female connector.

[0019] In some embodiments, the shape of the insulating sleeve corresponds to the shape of the gap between the male connector and the female connector.

[0020] In some embodiments, the insulating sleeve is made of silicone, polypropylene, polyurethane or rubber.

[0021] The implementation of the present invention has the following beneficial effects: by arranging a flexible connection component between the male connector and the female connector, the flexible connection component is used to flexibly fit the outer surface of the male connector and the inner surface of the female connector, and the elastic conductive member provides elastic pressure to ensure the reliability of the point contact connection between the outer surface of the male connector and the inner surface of the female connector. Through the mutual cooperation between the insulating sleeve and a number of elastic conductive members, the shrinkage of the insulating sleeve is used to generate multiple elastic point connections between the elastic conductive member and the male connector and the female connector. As many elastic conductive members as possible can be evenly distributed between the male connector and the female connector, so that the current passes through the male connector and the female connector more evenly, thereby enhancing the current carrying capacity. By connecting as many elastic points as possible, the heat dissipation efficiency is improved, and more heat generated by high current is conducted and dissipated, further enhancing the current carrying capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-power, high-current, reliable plug-in device in some embodiments of the present utility model;

[0024] Figure 2 It is a longitudinal cross-sectional diagram of the male connector and the female connector;

[0025] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0026] Figure 4 It is a transverse cross-sectional schematic diagram of the male connector and the female connector;

[0027] Figure 5 It is a partial longitudinal cross-sectional schematic diagram of a flexible connection component in an alternative solution of the utility model.

[0028] Description of the marks in the figure

[0029] Male connector 100 , female connector 200 , flexible connection assembly 300 , insulating sleeve 310 , elastic conductive member 320 , conductive body 321 , spiral wire 322 , connection block 323 , filling portion 330 . DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0031] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0033] See also Figure 1-Figure 3The high-power, high-current, reliable plug-in device in the first embodiment of the utility model includes a male connector 100 and a female connector 200. The male connector 100 and the female connector 200 are plugged into each other. A flexible connection component 300 is arranged between the male connector 100 and the female connector 200. The flexible connection component 300 includes an insulating sleeve 310 filled between the male connector 100 and the female connector 200, and a plurality of elastic conductive parts 320 arranged in the insulating sleeve 310. When the male connector 100 and the female connector 200 are plugged into each other, they are electrically connected through the elastic conductive parts 320.

[0034] Among them, the flexible connection component 300 can be made of a flexible conductive material, such as metal nanowires, graphene or oxide semiconductors, to increase the connection area between the male connector 100 and the female connector 200, and to enhance the contact points between the male connector 100 and the female connector 200. The flexible connection component 300 can also be applicable to male connectors 100 and female connectors 200 of different shapes. When the male connector 100 and the female connector 200 are cylindrical, the flexible connection component 300 can be attached to the surface of the male connector 100 and the female connector 200 to form a cylindrical flexible connection component 300. When the male connector 100 and the female connector 200 are rectangular, the flexible connection component 300 can be attached to the surface of the male connector 100 and the female connector 200 to form a rectangular flexible connection component 300. Therefore, the flexible connection component 300 can be applied to more usage situations, thereby improving the scope of application of the flexible connection component 300 and making it more convenient and diverse.

[0035] The present application includes a flexible connection component 300 including an insulating sleeve 310 filled between the male connector 100 and the female connector 200, and a plurality of elastic conductive parts 320 arranged in the insulating sleeve 310; when the male connector 100 and the female connector 200 are plugged together, the conductive connection is achieved through the elastic conductive parts 320, and the insulating sleeve 310 is made of non-conductive material. The insulating sleeve 310 is used to block the gap between the male connector 100 and the female connector 200, so that the male connector 100 is more stable and firm during the connection process with the female connector 200. At the same time, the insulating sleeve 310 can prevent dust from entering between the male connector 100 and the female connector 200, thereby extending the service life.

[0036] Furthermore, a plurality of elastic conductive members 320 are provided in the insulating sleeve 310, and through the mutual cooperation between the insulating sleeve 310 and the plurality of elastic conductive members 320, the shrinkage of the insulating sleeve 310 is utilized to generate multiple elastic point connections between the elastic conductive members 320 and the male connector 100 and the female connector 200. As many elastic conductive members 320 as possible can be evenly distributed between the male connector 100 and the female connector 200, so that the current passes through the male connector 100 and the female connector 200 more evenly, thereby enhancing the current carrying capacity. By connecting with as many elastic points as possible, the heat dissipation efficiency is improved, and more heat generated by high current is conducted and dissipated, thereby further enhancing the current carrying capacity.

[0037] In some embodiments, the cylindrical male connector 100 and the female connector 200 will have a curved surface, and the insulating sleeve 310 will drive the elastic conductive member 320 to contact the curved surface. The elastic pressure of the curved contact point is provided by the curved portion of the elastic conductive member 320, and different elastic conductive members 320 are flexibly connected through the insulating sleeve 310. Therefore, the elastic pressure of each contact point is only provided by the curved portion of the elastic conductive member 320. In addition, the insulating sleeve 310 can fit perfectly on the outer surface of the male connector 100 and the inner surface of the female connector 200. Therefore, the flexible connection The elastic pressure of each elastic contact point in the connecting assembly 300 is basically the same, the contact resistance is almost the same, the power and current distribution are almost the same, and it is less affected by errors such as the shape of the male connector 100 and the female connector 200. Considering that as many reliable point connections as possible are provided, the evenly distributed power and current are small. Therefore, the reliability is better under long-term high-power, high-current working conditions, and harsh working environments, the heat dissipation efficiency is higher, the contact is more secure, and it is also convenient for personnel to install on the male connector 100 or the female connector 200, with lower costs and more convenient operation.

[0038] See also Figure 3 and 4In some embodiments, the insulating sleeve 310 includes an inner surface and an outer surface relative to each other; each elastic conductive member 320 is disposed throughout the insulating sleeve 310, and the first end of each elastic conductive member 320 is exposed on the inner surface and is conductively connected to the male connector 100, and the second end of each elastic conductive member 320 is exposed on the outer surface and is conductively connected to the female connector 200. The first end and the second end of the elastic conductive member 320 exposed in the insulating sleeve 310 can be flush with or lower than the inner surface and the outer surface of the insulating sleeve 310. Correspondingly, the insulating sleeve 310 can be an elastic insulating sleeve. When the male connector 100 is plugged into the female connector 200, the male connector 100 and the female connector 200 will squeeze the insulating sleeve 310, causing the insulating sleeve 310 to deform radially. Since the elastic force of the elastic conductive part 320 is greater than the deformation elastic force of the insulating sleeve 310, the deformation of the elastic conductive part 320 when squeezed will be smaller, and the exposed elastic conductive part 320 will pass through the insulating sleeve 310 and contact the male connector 100 and the female connector 200 to form a conductive connection. When the insulating sleeve 310 blocks the gap between the male connector 100 and the female connector 200, it will be tighter, further reducing the entry of dust and delaying the service life.

[0039] In some embodiments, the first end and the second end of each elastic conductive member 320 are arranged to protrude from the inner surface and the outer surface at a set height. When the first end and the second end of the elastic conductive member 320 protrude from the inner surface and the outer surface of the insulating sleeve 310, the elastic conductive member 320 will always be connected to the male connector 100 through the protruding first end and the female connector 200 through the second end during installation, so that the contact between the elastic conductive member 320 and the male connector 100 and the female connector 200 is closer, so that the reliability is better under long-term high-power, high-current working conditions, and harsh working environments, the heat dissipation efficiency is higher, and the contact is more secure.

[0040] In some embodiments, the flexible connection component 300 is wrapped around the male connector 100. By wrapping the flexible connection component 300 on the male connector 100, it is convenient for the installer to install it, and the male connector 100 is more tightly connected to the female connector 200, which saves more effort during connection and is convenient for the installer to operate.

[0041] In some embodiments, the flexible connection component 300 is fitted inside the female connector 200. By fitting the flexible connection component 300 inside the female connector 200, the flexible connection component 300 can be prevented from being damaged during the plugging and unplugging process, thereby extending the service life and saving maintenance costs.

[0042] See also Figure 3 and Figure 4In some embodiments, the elastic conductive members 320 are arranged on the insulating sleeve 310 in an array along the circumference of the axis of the male connector 100. The elastic conductive members 320 arranged circumferentially on the insulating sleeve 310 can improve the conductive contact points between the elastic conductive members 320 and the male connector 100 and the female connector 200, further improving the conductivity and heat dissipation efficiency between the male connector 100 and the female connector 200.

[0043] In some embodiments, the elastic conductive members 320 are arranged in a spiral arrangement and at intervals on the insulating sleeve 310. When the male connector 100 is plugged in or out, the elastic conductive members 320 are arranged in a spiral arrangement and at intervals on the insulating sleeve 310. When the male connector 100 is plugged in or out, the user can pull out or insert the male connector 100 into the female connector 200 more effortlessly, making the operation more convenient.

[0044] See also Figure 4 and Figure 5 In some embodiments, the elastic conductive member 320 includes a cylindrical conductive body 321, and the cross-section of the conductive body 321 perpendicular to the male connector 100 is an arc-shaped. The conductive body 321 with an arc-shaped cross-section can generate elastic force in the radial direction of the male connector 100. After being squeezed into the gap between the male connector 100 and the female connector 200, the conductive body 321 generates elastic force by itself to fully connect the first end with the male connector 100. Similarly, the second end of the conductive body 321 will be fully connected with the female connector 200 under the action of its own elastic force. The cylindrical conductive body 321 can bear greater extrusion force, extend service life, be easier to manufacture, and reduce manufacturing costs. At the same time, the diameter of the conductive part can be made thicker, further improving the conductivity and heat dissipation efficiency between the male connector 100 and the female connector 200.

[0045] See also Figure 4 and Figure 5 In some embodiments, the elastic conductive member 320 includes a spiral wire 322 and connection blocks 323 fixedly arranged at both ends of the spiral wire 322. The spiral wire 322 is embedded in the insulating sleeve 310. The connection blocks 323 at both ends are conductively connected to the male connector 100 and the female connector 200 respectively. The spiral wire 322 can generate elasticity toward both ends. The elasticity generated by the spiral wire 322 is more stable and durable. After multiple plugging and unplugging, the spiral wire 322 can also have good elasticity, thereby extending the service life, so that the connection blocks 323 at both ends are more tightly connected to the male connector 100 and the female connector 200, further improving the conductivity between the male connector 100 and the female connector 200.

[0046] See also Figure 2In some embodiments, a filling portion 330 is provided at the top of the insulating sleeve 310 to fill the gap between the ends of the male connector 100 and the female connector 200. The filling portion 330 can be made into a raised structure. When the male connector 100 is inserted into the female connector 200, the gap between the male connector 100 and the female connector 200 is completely sealed, ensuring the strict three-proof requirements, and thus can be used for a long time in harsh environments, further improving reliability and extending service life.

[0047] See also Figure 2 In some embodiments, the shape of the insulating sleeve 310 corresponds to the shape of the gap between the male connector 100 and the female connector 200. By conforming to the shape of the gap between the male connector 100 and the female connector 200, the insulating sleeve 310 can reduce deformation of the insulating sleeve 310, allowing the insulating sleeve 310 to fit more closely with the male connector 100 and the female connector 200. The insulating sleeve 310 can more tightly seal the gap, further reducing the ingress of dust.

[0048] In some embodiments, the insulating sleeve 310 is made of silicone. The insulating sleeve 310 made of silicone can have better shrinkage and seal the gap more tightly.

[0049] In some embodiments, the insulating sleeve 310 is made of polypropylene. The insulating sleeve 310 made of polypropylene is easier to obtain and relatively cheap, has high flexural strength, a relatively smooth surface, is easy to install, and has good chemical corrosion resistance and impact resistance, thereby improving the service life of the insulating sleeve 310.

[0050] In some embodiments, the insulating sleeve 310 is made of polyurethane. The insulating sleeve 310 made of polyurethane has excellent elasticity, elongation, compression strength and softness, as well as good chemical stability, which facilitates installation and further improves the service life of the insulating sleeve 310.

[0051] In some embodiments, the insulating sleeve 310 is made of rubber. The insulating sleeve 310 made of rubber can fit more closely with the male connector 100 and the female connector 200 through its own elasticity. At the same time, rubber is simpler to make and the raw materials are cheaper, thereby saving manufacturing costs.

[0052] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A high-power, high-current, reliable plug-in device, comprising a male connector (100) and a female connector (200), wherein the male connector (100) and the female connector (200) are plug-connected, characterized in that: A flexible connection assembly (300) is provided between the male connector (100) and the female connector (200), and the flexible connection assembly (300) comprises an insulating sleeve (310) filled between the male connector (100) and the female connector (200), and a plurality of elastic conductive members (320) provided in the insulating sleeve (310); when the male connector (100) and the female connector (200) are plugged in, an electrically conductive connection is established via the elastic conductive members (320).

2. The high-power, high-current, reliable plug-in device according to claim 1, characterized in that: The insulating sleeve (310) comprises an inner surface and an outer surface opposite to each other; Each of the elastic conductive members (320) is disposed through the insulating sleeve (310), and a first end of each of the elastic conductive members (320) is exposed on the inner surface and is conductively connected to the male connector (100), and a second end of each of the elastic conductive members (320) is exposed on the outer surface and is conductively connected to the female connector (200).

3. The high-power, high-current, reliable plug-in device according to claim 2, characterized in that: The insulating sleeve (310) is an elastic insulating sleeve.

4. The high-power, high-current, reliable plug-in device according to claim 2, characterized in that: The first end and the second end of each elastic conductive member (320) are arranged to protrude from the inner surface and the outer surface at a set height.

5. The high-power, high-current, reliable plug-in device according to claim 1, characterized in that: The flexible connection component (300) is wrapped around the male connector (100); or The flexible connection assembly (300) fits inside the female connector (200).

6. The high-power, high-current, reliable plug-in device according to claim 1, characterized in that: The elastic conductive members (320) are arranged on the insulating sleeve (310) in an array at intervals along the circumference of the axis of the male connector (100); or The elastic conductive members (320) are arranged in a spiral pattern and spaced apart on the insulating sleeve (310).

7. The high-power, high-current, reliable plug-in device according to claim 1, characterized in that: The elastic conductive member (320) comprises a cylindrical conductive body (321), and the cross section of the conductive body (321) perpendicular to the male connector (100) is in the shape of an arc; or The elastic conductive member (320) comprises a spiral wire (322) and connection blocks (323) fixedly arranged at both ends of the spiral wire (322), the spiral wire (322) is embedded in the insulating sleeve (310), and the connection blocks (323) at both ends are respectively conductively connected to the male connector (100) and the female connector (200).

8. The high-power, high-current, reliable plug-in device according to claim 1, characterized in that: The top end of the insulating sleeve (310) is provided with a filling portion (330) for filling the gap between the ends of the male connector (100) and the female connector (200).

9. The high-power, high-current, reliable plug-in device according to any one of claims 1 to 8, characterized in that: The shape of the insulating sleeve (310) corresponds to the shape of the gap between the male connector (100) and the female connector (200).

10. The high-power, high-current, reliable plug-in device according to any one of claims 1 to 8, characterized in that: The insulating sleeve (310) is made of silicone, polypropylene, polyurethane or rubber material.

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