A high current connector and terminal assembly

Abstract

This utility model discloses a high-current connector and terminal assembly, including a cylindrical male terminal with a plug-in portion at one end, which has an elastic elongated hole and a contact protrusion; it also includes a female terminal with a mating portion at one end, the mating portion having a closing groove, and the mating portion having an insertion opening in a cylindrical body, the cylindrical body being able to accommodate and lock the male terminal; the male terminal and the female terminal each have a fixing portion at the end away from the plug-in portion and the mating portion, respectively. The elastic elongated hole and contact protrusion on the male terminal enable it to have radially controllable elastic deformation capability and provide clear segmented tactile feedback during insertion and removal; the dovetail-type closing groove design of the female terminal enhances its resistance to deformation; and the fact that both the male and female terminals are made of copper plate significantly reduces the manufacturing cost of the high-current connector.

Description

Technical Field

[0001] This utility model relates to a connector, and more particularly to a low-cost high-current connector and connecting terminals. Background Technology

[0002] With the rapid development of new energy vehicles, industrial robots, energy storage systems and consumer electronics, especially the surge in market demand for new energy vehicles and robots, the demand for low-voltage high-current connectors has experienced explosive growth.

[0003] The high cost of existing solutions makes it difficult to meet the OEMs' requirements for cost reduction and efficiency improvement. Currently, in existing technologies, male and female terminals are mostly made by machining copper rods and injection molding the shell. The machining cost is too high, which leads to the problem of high cost for high current connectors. In addition, traditional male and female terminals have parallel contact and no anti-dislodgement design, which can easily lead to slow dislodgement after long-term vibration. Moreover, the insertion and removal are linear, resulting in no clear tactile feedback when plugging and unplugging.

[0004] Therefore, there is an urgent need in the market for a low-cost, high-current connector with an anti-disconnection mechanism. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-current connector and terminal assembly. By improving the male and female terminals used in the high-current connector, the problems of no tactile feedback and no anti-dislodgement design in the insertion and removal of the high-current connector are solved, and the problem of excessively high manufacturing cost of the high-current connector is optimized.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A terminal assembly for a high-current connector, characterized in that it comprises:

[0008] The male terminal includes a plug portion, which is provided with an elastic elongated hole and a contact protrusion. When the terminal is plugged in or removed, there is a discontinuous change in resistance, and the user has segmented tactile feedback.

[0009] The female terminal includes a mating part and a closing groove. The mating part has a cylindrical body with an insertion port, and the cylindrical body can accommodate and lock the male terminal.

[0010] The male terminal and the female terminal are respectively provided with a fixing part at the end away from the plug-in part and the mating part;

[0011] The male terminal and the female terminal are made of copper plate.

[0012] As described above, in a terminal assembly for a high-current connector, the contact protrusion is an annular contact protrusion, wherein the annular contact protrusion has a first annular straight surface segment in the middle and annular arc surface segments at both ends.

[0013] In a terminal assembly for a high-current connector as described above, the elastic elongated hole is an elongated circular arc hole, and the axial length of the elastic elongated hole is less than that of the insertion portion.

[0014] In a terminal assembly for a high-current connector as described above, there are at least two elastic elongated holes, which are arranged circumferentially in the insertion portion and are centrally symmetrically distributed.

[0015] As described above, a terminal assembly for a high-current connector includes a progressive guide slope at the front end of the male terminal insertion portion to reduce the peak insertion / extraction force and guide alignment.

[0016] In a terminal assembly for a high-current connector as described above, after the female terminal is inserted into the male terminal, the mating part also has a second annular straight section at a position corresponding to the first annular straight section, and the two are in elastic contact during insertion.

[0017] As described above, in a terminal assembly for a high-current connector, the closing groove is a dovetail groove disposed on the mating part, and when the mating part is subjected to radial pressure, the bevel angle of the dovetail groove is configured to make the mating part radially self-tight.

[0018] As described above, a terminal assembly for a high-current connector includes a ring-shaped recess in the middle of the fixing part, and ring-shaped protrusions on both sides of the ring-shaped recess.

[0019] As described above, a terminal assembly for a high-current connector includes a plurality of fixing holes in the annular recess in the middle of the fixing part. The fixing holes are circumferentially equidistantly distributed in the annular recess for fixing and connecting with the connector.

[0020] A high-current connector formed by the terminal assembly for the connector as described above includes a first connecting component, a second connecting component, and a terminal assembly as described in any one of claims 1-9, wherein the first connecting component and the second connecting component are respectively fixedly connected to the fixing portion of the terminal assembly.

[0021] The beneficial effects of this invention are as follows: the male terminal has radially controllable elastic deformation capability due to the elastic elongated hole and contact protrusion, and provides clear segmented tactile feedback during insertion and removal; the female terminal's dovetail groove design enhances its resistance to deformation; the contact protrusion and annular straight section increase the anti-dislodgement design, thereby increasing the contact area and improving contact stability; the male and female terminals are made of copper plates, which significantly reduces the manufacturing cost of high-current connectors. Attached Figure Description

[0022] Figure 1 The three-dimensional view of the male terminal provided for this utility model

[0023] Figure 2 Perspective view of the female terminal provided by this utility model

[0024] Figure 3 A perspective view of the connection between the male and female terminals provided by this utility model.

[0025] Figure 4 Cross-sectional view of the connection between the male and female terminals provided by this utility model.

[0026] Figure 5 A perspective view of the connector connection state provided by this utility model.

[0027] Figure 6 Cross-sectional view of the connector connection state provided by this utility model

[0028] The components represented by each number in the attached diagram are explained below:

[0029] 1 Male terminal, 11 Insertion part, 111 Contact protrusion, 111a First annular straight surface section, 111b Annular arc surface section, 112 Elastic elongated hole, 2 Female terminal, 21 Mating part, 211 Second annular straight surface section, 22 Closing groove, 03 Fixing part, 031 Fixing hole, 4 First connecting assembly, 5 Second connecting assembly. Detailed Implementation

[0030] To make the above-mentioned features and beneficial effects of this utility model more apparent and understandable, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 and 2As shown, a terminal assembly for a high-current connector includes a male terminal 1 and a female terminal 2. The male terminal 1 has a cylindrical structure with a plug portion 11 at one end. The plug portion 11 is provided with an elastic elongated hole 112 and a contact protrusion 111. The female terminal 2 has a mating portion 21 at one end. The mating portion 21 is provided with a closing groove 22. The mating portion 21 has a cylindrical body with an insertion opening. The cylindrical body can accommodate and lock the male terminal 1. The male terminal 1 and the female terminal 2 are respectively provided with fixing portions 03 at the ends away from the plug portion 11 and the mating portion 21. It is worth noting that the male terminal 1 and the female terminal 2 are made of copper plate and can be continuously stamped and used.

[0032] Because the male terminal 1 has a contact protrusion 111 in the middle of its insertion portion 11 and an elastic elongated hole 112 in the axial direction of the insertion portion 11, there is a discontinuous resistance change when the terminal is inserted or removed, and the user has segmented tactile feedback, making it clearer whether the connector has been inserted.

[0033] like Figure 1 and 3 As shown, the contact protrusion 111 is further an annular contact protrusion, with a first annular straight surface segment 111a in the middle and annular arc surface segments 111b at both ends. The first annular straight surface segment 111a in the middle of the contact protrusion 111 can elastically contact and connect with the female terminal 2, and the annular arc surface segments 111b at both ends can elastically abut against the female terminal, preventing vibration accumulation during use in new energy vehicles, intelligent robots, and other consumer electronics fields, and avoiding connector detachment.

[0034] Furthermore, the elastic elongated hole 112 is an elongated circular arc hole, and the axial length of the elastic elongated hole 112 is less than that of the insertion part 11.

[0035] Furthermore, there are at least two elastic elongated holes 112, which are arranged circumferentially on the insertion portion 11 and are centrally symmetrically distributed.

[0036] Since the male terminal 1 has an elastic elongated hole 112 axially provided in its insertion part 11, and the axial length of the elastic elongated hole 112 is less than that of the insertion part 11, the male terminal 1 has a radially controllable elastic deformation capability, which facilitates the insertion and removal of the male terminal 1 and the female terminal 2.

[0037] Furthermore, a progressive guide slope is provided at the front end of the insertion portion 11 of the male terminal 1, that is, the male terminal 1 is designed to be rounded, which can reduce the peak insertion and extraction force and guide the alignment.

[0038] Furthermore, after the female terminal 2 is inserted into the male terminal 1, the mating part 21 is also provided with a second annular straight surface section 211 at a position corresponding to the first annular straight surface section 111a, and the two are in elastic contact when inserted.

[0039] like Figure 3 and Figure 4 As shown, after the male and female terminals are connected, the male terminal contact protrusion 111 makes elastic contact with the second annular straight surface section 211, thereby increasing the contact area and improving the contact stability.

[0040] Furthermore, the closed groove is a dovetail groove provided on the mating part 21. When the mating part 21 is subjected to radial pressure, the inclined angle of the dovetail groove makes the mating part 21 radially self-tight.

[0041] like Figure 2 As shown, the female terminal closing groove 22 is specially designed as a dovetail groove. When the male terminal 1 is inserted into the female terminal 2, the beveled angle of the dovetail groove makes the mating part 21 radially self-tight, thereby further enhancing the shape stability of the female terminal 2.

[0042] Furthermore, the fixing part 03 has an annular recess in the middle and an annular protrusion on both sides.

[0043] Furthermore, the fixing part 03 has a plurality of fixing holes 031 circumferentially arranged in the annular recess in the middle. The fixing holes 031 are circumferentially equidistantly distributed in the annular recess for fixing and connecting with the connector.

[0044] like Figure 3 and Figure 4 As shown, since both the male terminal 1 and the female terminal 2 are provided with fixing holes 031 at the fixing positions of the connector, and the annular recess of the fixing part 03 is provided with multiple circumferentially equidistant fixing holes 031, the male terminal 1 and the female terminal can be stably connected to the connector through the connecting post injection molded from the fixing holes 031.

[0045] In addition, such as Figure 5 and Figure 6 As shown, this utility model also provides a high-current connector, characterized in that it includes a first connecting component 4, a second connecting component 5, and a terminal assembly as described in any one of claims 1-9, wherein the first connecting component 4 and the second connecting component 5 are respectively fixedly connected to the fixing part 03 of the terminal assembly.

[0046] In summary, after the male terminal 1 is inserted into the female terminal 2, the contact protrusion 111 and the second annular straight section 211 cooperate to form an anti-disengagement mechanism. Furthermore, during insertion and removal, the user experiences non-linear resistance changes, receiving segmented tactile feedback for clearer confirmation of connector insertion. The female terminal 2's mating portion 21 features a dovetail groove 22, which, when radially compressed, causes radial self-tightening of the mating portion 21 due to the dovetail groove's angled configuration. This ensures stable insertion of the male and female conductive terminals, preventing disengagement and deformation. Moreover, the use of copper plates for both the male and female terminals significantly reduces the manufacturing cost of high-current connector conductive terminals.

[0047] In addition, male terminal 1 and female terminal 2 are respectively fixedly connected to the first connecting component 4 and the second connecting component 5 of the high-current connector via fixing part 03. Since the fixing part 03 has an annular recess in the middle and a fixing hole 031, the high-current connector forms a stable connection with the male and female conductive terminals through the connecting post injection molded from the fixing hole 031.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "vertical", "flat", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] 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.

[0050] The above embodiments are preferred embodiments of this utility model, but not all embodiments. Any equivalent changes to the technical solutions of this utility model made by those skilled in the art after reading this utility model specification are covered by the claims of this utility model.

Claims

1. A terminal assembly for a high current connector, characterized by, include: One end of the male terminal (1) is a plug-in part (11), and the plug-in part (11) is provided with an elastic elongated hole (112) and a contact protrusion (111). When the male terminal (1) is plugged in and out, there is a discontinuous resistance change, and the user has segmented tactile feedback. The female terminal (2) includes a mating part (21) and a closing groove (22). The mating part (21) is a cylindrical body with an insertion port. The cylindrical body can accommodate and clamp the male terminal (1). The male terminal (1) and the female terminal (2) are respectively provided with a fixing part (03) at the end away from the plug-in part (11) and the mating part (21). The male terminal (1) and the female terminal (2) are made of copper plate.

2. The terminal assembly for a high-current connector according to claim 1, characterized in that, The contact protrusion (111) is an annular contact protrusion, with a first annular straight surface segment (111a) in the middle and annular arc surface segments (111b) at both ends.

3. The terminal assembly for a high-current connector according to claim 1, characterized in that, The elastic elongated hole (112) is an elongated arc hole, and the axial length of the elastic elongated hole (112) is less than that of the insertion part (11).

4. The terminal assembly for a high-current connector according to claim 1, characterized in that, There are at least two elastic elongated holes (112), which are arranged circumferentially on the insertion part (11) and are centrally symmetrically distributed.

5. A terminal assembly for a high-current connector according to claim 1, characterized in that, The front end of the plug-in part (11) is provided with a progressive guide slope to reduce the peak insertion and extraction force and guide the alignment.

6. A terminal assembly for a high-current connector according to claim 2, characterized in that, After the female terminal (2) is inserted into the male terminal (1), the mating part (21) is also provided with a second annular straight section (211) at the position corresponding to the first annular straight section (111a), and the two are in elastic contact when inserted.

7. A terminal assembly for a high-current connector according to claim 1, characterized in that, The closed groove (22) is a dovetail groove set on the mating part (21). When the mating part (21) is radially compressed, the inclined angle of the dovetail groove makes the mating part (21) radially self-tight.

8. A terminal assembly for a high-current connector according to claim 1, characterized in that, The fixing part (03) has an annular recess in the middle and an annular protrusion on both sides.

9. A terminal assembly for a high-current connector according to claim 8, characterized in that, The fixing part (03) has a plurality of fixing holes (031) arranged circumferentially in the annular recess in the middle. The fixing holes (031) are circumferentially equidistantly distributed in the annular recess for fixing connection with the connector.

10. A high-current connector, characterized in that, It includes a first connecting component (4), a second connecting component (5), and a terminal assembly as described in any one of claims 1-9, wherein the first connecting component (4) and the second connecting component (5) are respectively fixedly connected to the fixing part (03) of the terminal assembly.

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