A small volume high current connector

Abstract

The utility model relates to the technical field of connector, specifically relates to a small volume large current connector, and the connector includes the connector male end and the connector female end that connect each other, the connector male end includes male end casing, at least two male end current terminals and a male end signal terminal, the male end current terminal is installed in the male end casing, the connector female end includes female end casing, at least two female end current terminals and a female end signal terminal, the female end current terminal is installed in the female end casing and is equipped with crown spring structure inside, when the male end current terminal is inserted into the female end current terminal, and the male end current pin and crown spring structure elastic contact form electric connection. The utility model aims at solving the problem in the foregoing background art, provides a small volume large current connector that compact structure, reliable connection can transmit large current in very small volume.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a small-volume, high-current connector. Background Technology

[0002] In electronic devices, especially in drones, power tools, and robots, the requirements for power connectors are becoming increasingly stringent. These devices not only require connectors to transmit large currents, but also, due to internal space constraints, demand that the connectors be as small as possible.

[0003] In existing connector technologies, carrying high current typically requires increasing the contact area of ​​the terminals, leading to a larger overall connector size. Conversely, smaller connectors often lack sufficient current carrying capacity and are prone to poor contact or loosening under conditions such as vibration, affecting the safety and reliability of equipment. Therefore, how to achieve stable transmission of high current while maintaining a small size and ensuring a robust and reliable connection is a pressing technical problem that needs to be solved in the connector industry. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art and provide a compact, reliable, and high-current connector that can transmit large currents in a very small volume.

[0005] This utility model is achieved through the following technical solution:

[0006] A small-volume, high-current connector includes a male connector terminal and a female connector terminal that are interconnected and mated. The male connector terminal includes a male housing, at least two male current terminals, and one male signal terminal, with the male current terminals mounted in the male housing. The female connector terminal includes a female housing, at least two female current terminals, and one female signal terminal, with the female current terminals mounted inside the female housing and having a crown spring structure inside. When the male current terminal is inserted into the female current terminal, the male current pins elastically contact the crown spring structure to form an electrical connection.

[0007] The outer surface of either the female end shell or the male end shell is provided with a snap-fit ​​protrusion, and a snap-fit ​​skylight adapted to the snap-fit ​​protrusion is provided on another corresponding shell.

[0008] When the male end of the connector is inserted into the female end of the connector, the snap-fit ​​boss and the snap-fit ​​window are engaged with each other.

[0009] The female signal terminal and / or male signal terminal are both provided with barbed structures.

[0010] Both the female and male housings have rubber-coated grooves at their cable connection ends.

[0011] The rubber-coated groove is integrally formed with the female end shell and the male end shell, respectively.

[0012] The female signal terminal is a fork spring structure used to clamp the male signal terminal.

[0013] The beneficial effects of this utility model are:

[0014] This utility model discloses a small-volume, high-current connector. It employs a crown spring connection structure within the female current terminal of the connector's female end. The crown spring is composed of multiple elastic spring sheets. When the male current terminal is inserted, these spring sheets tightly embrace the male current terminal from all sides, forming multiple contact points. This structure achieves a very stable and low-resistance electrical connection within a small volume, thus ensuring the smooth passage of high current. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a connector according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of a connector according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram illustrating the interaction between the male signal terminal and the female signal terminal according to an embodiment of the present invention.

[0019] Figure Labels

[0020] Connector male terminal -- 100, male terminal housing -- 101, male terminal current terminal -- 102, male terminal signal terminal -- 103

[0021] Connector female terminal - 200, female terminal housing - 201, female terminal current terminal - 202, female terminal signal terminal - 203, crown spring structure - 204.

[0022] Snap-on boss -- 301, snap-on sunroof -- 302, barbed structure -- 303, rubber-coated groove -- 304. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] like Figures 1 to 3 As shown, this embodiment discloses a small-volume, high-current connector, which includes a male connector terminal 100 and a female connector terminal 200 that are connected and mated to each other.

[0027] The connector male terminal 100 includes a male terminal housing 101, at least two male terminal current terminals 102 and a male terminal signal terminal 103, wherein the male terminal current terminals 102 are mounted on the male terminal housing 101;

[0028] The connector female end 200 includes a female end housing 201, at least two female end current terminals 202 and a female end signal terminal 203. The female end current terminals 202 are installed inside the female end housing 201 and have a crown spring structure 204 inside.

[0029] When the male current terminal 102 is inserted into the female current terminal 202, the male current terminal makes elastic contact with the crown spring structure 204 to form an electrical connection.

[0030] Specifically, in this embodiment, the connector incorporates a crown spring structure 204 within the female current terminal 202 of the female end 200. This crown spring structure 204 is composed of multiple elastic springs. When the male current terminal 102 is inserted, these springs tightly embrace the male current terminal 102 from all sides, forming multiple contact points. This structure achieves a very stable and low-resistance electrical connection within a relatively small volume, thereby ensuring the smooth passage of large currents.

[0031] Furthermore, both the outer surfaces of the female end housing 201 and the male end housing 101 are provided with snap-fit ​​protrusions 301, and a snap-fit ​​window 302 adapted to the snap-fit ​​protrusions 301 is provided on another corresponding housing. When the male end 100 of the connector and the female end 200 of the connector are inserted, the snap-fit ​​protrusions 301 and the snap-fit ​​window 302 are engaged with each other. After the male end 100 of the connector and the female end 200 of the connector are inserted, the snap-fit ​​protrusions 301 and the snap-fit ​​window 302 are engaged with each other. This structure utilizes a hidden snap-fit, providing a reliable mechanical lock without significantly increasing the external volume, effectively preventing the connector from accidentally disconnecting under vibration or external force, and producing an effect that enhances the stability of insertion. In this embodiment, the positions of the snap-fit ​​protrusions 301 and the snap-fit ​​window 302 can be interchanged, that is, when the snap-fit ​​protrusions 301 are provided on the male end housing 101, the snap-fit ​​window 302 is provided on the female end housing 201, and vice versa.

[0032] Furthermore, both the female signal terminal 203 and / or the male signal terminal 103 are provided with barb structures 303. This structure utilizes the physical interference of the barbs to make the signal terminal less likely to come out after being assembled into the housing, and to maintain stable contact after mating. This solves the problem that small-sized signal terminals are prone to loosening and causing signal interruption, thus increasing the stability of the signal connection.

[0033] Furthermore, both the female end housing 201 and the male end housing 101 are provided with a rubber-coating groove 304 at their cable connection ends for the injection molding rubber coating process after cable connection, thereby enhancing the sealing and mechanical strength of the connection. This structure provides a positioning and bonding area for the subsequent injection molding rubber coating process, solving the problem of stress concentration and easy damage at the cable connection location, and allowing the rubber coating layer to bond more firmly with the connector body, achieving the effect of improving the waterproof, dustproof, and tensile strength of the connector tail. Preferably, the rubber-coating groove 304 is integrally formed with the female end housing 201 and the male end housing 101, respectively.

[0034] Furthermore, the female signal terminal 203 has a fork spring structure, which is used to clamp the male signal terminal 103, thereby ensuring the stability of the signal connection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A small-volume, high-current connector, comprising a male connector terminal and a female connector terminal that are interconnected and mated, characterized in that, The male terminal of the connector includes a male terminal housing, at least two male terminal current terminals and one male terminal signal terminal, wherein the male terminal current terminals are mounted on the male terminal housing; The female connector includes a female housing, at least two female current terminals and one female signal terminal. The female current terminals are installed inside the female housing and have a crown spring structure inside. When the male current terminal is inserted into the female current terminal, the male current pin makes elastic contact with the crown spring structure to form an electrical connection.

2. The small-volume, high-current connector according to claim 1, characterized in that, The outer surface of either the female end housing or the male end housing is provided with a snap-fit ​​protrusion, and a snap-fit ​​skylight adapted to the snap-fit ​​protrusion is provided on another corresponding housing. When the male end of the connector is inserted into the female end of the connector, the snap-fit ​​boss and the snap-fit ​​window are engaged with each other.

3. A small-volume, high-current connector according to claim 1 or 2, characterized in that, Both the female signal terminal and / or the male signal terminal are provided with barbed structures.

4. A small-volume, high-current connector according to claim 1, characterized in that, Both the female and male housings have rubber-coated grooves at their cable connection ends.

5. A small-volume, high-current connector according to claim 4, characterized in that, The rubber-coated grooves are integrally formed with the female end shell and the male end shell, respectively.

6. A small-volume, high-current connector according to claim 1, characterized in that, The female signal terminal has a fork spring structure and is used to clamp the male signal terminal.

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