High-tolerance contact terminal module of connector

The rotary contact terminal module solves the problems of poor floating performance and high precision requirements of contact terminals, and realizes a connector design with high tolerance, high floating performance and low cost, which is suitable for repeated mating and long-term use.

CN223693391UActive Publication Date: 2025-12-19SUZHOU RECODEAL INTERCONNECT SYST
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Patent Information

Application Number
CN202520266395.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2025-12-19
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

Existing plug-type connectors have poor contact terminal floating performance, making it difficult to ensure consistency, resulting in difficulty in mating and inability to automatically align, and the high precision requirements lead to high manufacturing costs.

Method used

The rotary contact terminal module includes contact springs, return springs, and a stacking shaft. The rotation of the stacking shaft accommodates contact spring deviations, and the return spring teeth ensure automatic return to center. Combined with the upper and lower spring teeth and contact block design, it achieves high tolerance and high floating performance.

Benefits of technology

It achieves rapid automatic alignment and reset, is suitable for multiple insertions, reduces manufacturing costs, improves assembly efficiency and accuracy, and ensures smooth insertion and removal without jamming, thus extending service life.

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Abstract

The utility model discloses a high-tolerance contact terminal module of a connector. The contact terminal module comprises contact elastic sheets, a return elastic sheet and a superposition shaft, wherein the plurality of contact elastic sheets are stacked front and back to form a terminal body; the upper elastic teeth and the lower elastic teeth on the inner sides of the two return elastic sheets elastically press the upper end and the lower end of the side surface of the terminal body, and the return elastic teeth on the outer sides of the return elastic sheets elastically press the tube cavity of the mounting shell; the middle section of the superposition shaft is fixedly connected with an inner coupling hole of the contact spring, and two ends of the superposition shaft penetrate through outer coupling holes of the return spring and are rotationally connected with a pipe cavity of the mounting shell; the contact block of the contact elastic piece elastically presses the fixed insertion piece, the floating insertion piece and the return elastic teeth of the connector to realize high-tolerance floating insertion and extraction and rapid guide. The utility model has the advantages of satisfying the application scene of large deviation and high floating, having the function of automatic guiding and resetting, and being gentle in plugging and unplugging without blocking.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrical connection, especially a high-tolerance contact terminal module of connector. BACKGROUND

[0002] The current new energy equipment develops rapidly, and the connector is an important part in the new energy field, which is usually a fixed blade of plug connector contacting a contact terminal of plug-in socket connector, and has the following defects: first, the contact terminal is usually formed by stacking elastic sheets, and the consistency of the stacked elastic sheets is difficult to guarantee, and the current contact terminal has poor floating performance, and the misalignment caused by the large size difference during use makes it difficult to plug in, and the contact terminal cannot be automatically aligned when not in use, so it is not suitable for multiple plugging; second, the current structure requires high-precision dimensions for the stacked elastic sheets, which increases the production cost. SUMMARY

[0003] In order to solve one or more of the above problems, the utility model provides a high-tolerance contact terminal module of connector.

[0004] According to one aspect of the utility model, the high-tolerance contact terminal module of connector includes: contact elastic sheets, a plurality of contact elastic sheets are stacked in front and back to form a terminal body, and the upper insertion hole and the lower insertion hole of the contact elastic sheet are provided with left-right symmetrical contact blocks;

[0005] The return elastic sheets are provided with upper elastic teeth and lower elastic teeth on the inner side, which symmetrically and elastically press the upper end and the lower end of the left and right side surfaces of the contact terminal body, and the return elastic sheets are provided with return elastic teeth on the outer side, which elastically press the lumen of the mounting shell;

[0006] The stacked shaft is fixedly connected to the inner shaft hole in the middle of the contact elastic sheet, the outer shaft hole of the transverse wing of the return elastic sheet is penetrated at both ends, and the lumen of the mounting shell is rotationally connected;

[0007] The contact blocks on the left and right sides of the lower insertion hole and the upper insertion hole elastically press the fixed blade and the floating blade of the connector, when the floating blade is offset and inserted, the terminal body rotates around the stacked shaft and presses the two return elastic sheets, the return elastic teeth elastically deform to absorb the offset load, and when the floating blade is pulled out, the terminal body is bounced back.

[0008] In some embodiments, the upper elastic teeth and the lower elastic teeth are inclined inwardly and provided with inwardly folded inner contact ends at the distal ends; and the return elastic teeth are inclined outwardly and provided with outwardly folded outer contact ends at the distal ends.

[0009] In some embodiments, the upper elastic teeth are provided with a first punching hole in the middle, the return elastic teeth are integrally connected to the lower end surface of the first punching hole at the lower end, and the return elastic teeth and the vertical edge of the first punching hole are provided with an elastic opening gap.

[0010] In some embodiments, the lower spring tooth is provided with a second punching hole in the shape of a vertical long circular hole structure.

[0011] In some embodiments, the return spring further comprises a middle piece body, two middle piece bodies are suspended in the middle of the left and right sides of the terminal body, the upper end of the middle piece body integrally extends upward to form an upper spring tooth, and the lower end integrally extends downward to form a lower spring tooth, and the front and rear sides of the middle piece body are vertically bent to form a transverse wing piece.

[0012] In some embodiments, the upper spring tooth and the connecting part between the lower spring tooth and the middle piece body form a buffer round corner, and the return spring tooth and the first punching hole form a buffer round corner.

[0013] In some embodiments, the outer shaft hole of one wing piece of each return spring is a circular hole with the same diameter as the superimposed shaft, and the outer shaft hole of the other wing piece is a positioning hole with the same contour as the positioning block, and the positioning block is sleeved in the positioning hole.

[0014] In some embodiments, the two vertical pieces of the contact spring are integrally and vertically connected by a transverse piece in the middle, forming an H-shaped structure with an upper insertion hole and a lower insertion hole, the transverse piece in the middle forms an inner shaft hole, and the inner shaft hole and the middle segment of the superimposed shaft are in interference fit.

[0015] The inner walls of the two vertical pieces are symmetrically formed with protruding circular arc contact blocks at the upper and lower ends.

[0016] In some embodiments, the transverse piece in the middle is provided with an anti-rotation positioning groove and one side is provided with a positioning block with the same contour size as the anti-rotation positioning groove, the center of the positioning block is provided with an inner shaft hole, and the adjacent positioning blocks are sleeved in the anti-rotation positioning groove.

[0017] In some embodiments, the transverse piece in the middle is provided with an anti-rotation positioning groove and one side is provided with a positioning block with the same contour size as the anti-rotation positioning groove, the center of the positioning block is provided with an inner shaft hole, and the adjacent positioning blocks are sleeved in the anti-rotation positioning groove.

[0018] The high-tolerance contact terminal module of the connector is formed into a whole through a superposition shaft, the terminal body can accommodate the consistency deviation of the contact spring through rotation of the superposition shaft, the rotation position of the return spring tooth is controllable and the return spring tooth can automatically return to the normal position, so the high-tolerance contact terminal module is suitable for the assembly working condition with large floating; the beneficial effects are as follows: (1) the high-tolerance contact terminal module has high-tolerance and high-floating performance, meets the application scene with large deviation and large floating, can be quickly and automatically guided and reset after use, is suitable for long-term plugging, and has long service life; (2) the structure elastically presses a plurality of contact springs through the upper spring tooth and the lower spring tooth, the position deviation of the contact spring is consistent, the overall installation precision is high, the machining precision of the contact spring does not need to be highly pursued, and therefore the manufacturing cost is effectively controlled; (3) the contact spring, the return spring tooth and the superposition shaft can be modularly preassembled and then directly placed in the mounting shell, the assembly precision and the assembly efficiency are improved, and the assembly man-hours and the cost are reduced; (4) the contact block arranged in the jack hole can be smoothly rotated to the best plugging position, the plugging force is effectively reduced, the plugging is soft and does not be blocked, and the assembly surface of mutual plugging is effectively protected; and (5) the inside of the return spring tooth is provided with upper and lower contact points and the outside of the upper plugging end is provided with an external contact point, the stress position is effectively adapted, the structure is simple, and the return effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic view of a high-tolerance contact terminal module of a connector according to an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional schematic view of a contact spring shown in Figure 1

[0021] Figure 3 It is a sectional view schematic view of a contact spring shown in Figure 2

[0022] Figure 4 It is a three-dimensional schematic view of a return spring tooth shown in Figure 1

[0023] Figure 5 It is a sectional view schematic view of the contact terminal module shown in when being installed and used; Figure 1

[0024] Terminal body 00, contact spring 1, transverse piece 10, vertical piece 11, upper plugging hole 12, lower plugging hole 13, contact block 14, anti-rotation positioning groove 15, positioning block 16, inner shaft hole 17;

[0025] Return spring tooth 2, middle piece body 20, upper spring tooth 21, first punching cutout 210, elastic opening slit 211, lower spring tooth 22, wing piece 23, outer shaft hole 24, return spring tooth 25, outer contact end 26, buffer round corner 27, inner contact end 28, second punching cutout 29;​​​​

[0026] Stacking axis 3;

[0027] Mounting shell 01; fixed tab 02; floating tab 03. DETAILED DESCRIPTION

[0028] The utility model will be explained in further detail below in combination with the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0029] Figures 1 to 5 A high-tolerance contact terminal module of a connector according to an embodiment of the utility model is schematically shown. As shown in the figure, the high-tolerance contact terminal module of the connector comprises:

[0030] Contact spring 1, a plurality of contact springs 1 are stacked front and back to form a terminal body 00, the upper and lower insertion holes 12 and 13 of the contact spring 1 are each provided with left and right symmetrical contact blocks 14;

[0031] Return spring 2, the upper and lower elastic teeth 21 and 22 on the inner side of the two return springs 2 symmetrically press the upper and lower ends of the left and right side surfaces of the contact terminal body 00 elastically, and the return elastic tooth 25 on the outer side of the return spring 2 elastically presses the lumen of the mounting shell 01. Preferably, the upper and lower elastic teeth 21 and 22 are inwardly inclined and provided with outwardly folded inner contact ends 28 at the ends; the return elastic tooth 25 is outwardly inclined and provided with inwardly folded outer contact ends 26 at the ends, and the structure has more excellent elastic contact capability.

[0032] Stacking axis 3, the stacking axis 3 is fixedly connected to the inner shaft hole 17 in the middle of the contact spring 1, the outer shaft hole 24 of the transverse wing 23 of the return spring 2 is sleeved at both ends and rotationally connected to the lumen of the mounting shell 01;

[0033] The contact blocks 14 on the left and right sides of the lower insertion hole 13 elastically press the fixed tab 02 of the connector, and the contact blocks 14 on the left and right sides of the upper insertion hole 12 elastically press the floating tab 03 of the connector, the floating tab 03 is offset and inserted, the terminal body 00 rotates around the stacking axis 3 and presses the two return springs 2, the return elastic tooth 25 elastically deforms to absorb the offset load and rebounds the terminal body 00 when the floating tab 03 is pulled out.

[0034] The high-tolerance contact terminal module of the connector forms a whole through the superposition shaft 3, the terminal body 00 can accommodate the consistency deviation of the contact spring 1 through the rotation of the superposition shaft 3, the return spring tooth 25 ensures that the damping of the rotation position is controllable and the return spring 2 is automatically returned, so it is suitable for the assembly working condition of large floating; its beneficial effects are: first, the rotary contact terminal module has high tolerance and high floating performance, which meets the application scene of large deviation and large floating, and can quickly and automatically align and reset after use, and is suitable for long-term plugging and long service life; second, the structure elastically presses a plurality of contact springs 1 through the upper spring tooth 21 and the lower spring tooth 22, so that the position deviation of the contact spring 1 is consistent, the overall installation precision is high, and the machining precision of the contact spring 1 does not need to be high, thereby effectively controlling the manufacturing cost; third, the contact spring 1, the return spring 2 and the superposition shaft 3 can be modularly preassembled, and then directly placed in the mounting shell, thereby improving the assembly precision and assembly efficiency, reducing the assembly time and cost; fourth, the contact block 14 is arranged in the jack, which can be smoothly rotated to the best plugging position, effectively reducing the plugging force, and the plugging is soft and non-jamming, and the assembly surface of mutual plugging is effectively protected; fifth, the return spring 2 has upper and lower contacts on the inner side and an outer contact on the upper plugging end, which effectively adapts to the stress position, has a simple structure and good return effect.

[0035] Further, the first punching 210 is arranged in the middle of the upper spring tooth 21, the lower end of the outwardly inclined return spring tooth 25 is integrally connected to the lower end face of the first punching 210, and the elastic opening slit 211 is arranged between the return spring tooth 25 and the vertical edge of the first punching 210. Preferably, the lower spring tooth 22 is provided with a plurality of second punchings 29 in the form of vertical long circular holes. Its beneficial effects are: the structure is simple, the cost of parts is low, which is beneficial to obtaining good elasticity, greater carrying capacity and alignment recovery capacity.

[0036] Further, the return spring 2 further includes a middle piece 20, two middle pieces 20 are suspended on the left and right sides of the terminal body 00, the upper end of the middle piece 20 integrally extends upward to form the upper spring tooth 21, and the lower end integrally extends downward to form the lower spring tooth 22, and the front and rear sides of the middle piece 20 are vertically bent to form a transverse wing 23.

[0037] Preferably, the upper spring tooth 21 and the lower spring tooth 22 and the two ends of the middle piece 20 are connected to form a buffer round corner 27; the return spring tooth 25 and the first punching 210 are connected to form a buffer round corner 27. Its beneficial effects are: the round corner structure can improve the stress distribution and improve the overall impact load capacity.

[0038] Further, the outer shaft hole 24 of one wing 23 of each return-to-zero sheet 2 is a circular hole with the same diameter as the superposition shaft 3, and the outer shaft hole 24 of the other wing 23 is a positioning hole with the same profile as the positioning block 16, and the positioning block 16 is sleeved in the positioning hole. The beneficial effect is that the structure can ensure high-precision installation of the return-to-zero sheet 2 and the contact sheet 1, reduce size deviation, and improve structural consistency.

[0039] Further, the two vertical sheets 11 of the contact sheet 1 are integrally and vertically connected through the transverse sheet 10, forming an H-shaped structure with the upper insertion hole 12 and the lower insertion hole 13, the transverse sheet 10 is formed with the inner shaft hole 17 in the middle, and the inner shaft hole 17 is in interference fit with the middle section of the superposition shaft 3.

[0040] The inner walls of the two vertical sheets 11 are symmetrically formed with protruding circular arc contact blocks 14 at the upper and lower ends. Preferably, the transverse sheet 10 is provided with an anti-rotation positioning groove 15 in the middle and a positioning block 16 with the same profile size as the anti-rotation positioning groove 15 on one side, the positioning block 16 is provided with an inner shaft hole 17 at the center, and the adjacent positioning block 16 is sleeved in the anti-rotation positioning groove 15. The beneficial effect is that the structure can realize the precision of the contact sheet 1 superposition, has low production cost, small size deviation, and high structural consistency.

[0041] Preferably, the transverse sheet 10 is formed with an inner recessed rectangular anti-rotation positioning groove 15 and a protruding rectangular positioning block 16 at the middle position. The beneficial effect is that the machining process can ensure good structural precision, and further optimize the processing cost.

[0042] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A high tolerance contact terminal module of a connector, characterized by, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

2. The high tolerance contact terminal module of claim 1, wherein, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

3. The high tolerance contact terminal module of claim 2, wherein, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

4. The high tolerance contact terminal module of claim 2, wherein, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

5. The high tolerance contact terminal module of a connector according to any one of claims 1 to 4, wherein The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

6. The high tolerance contact terminal module of claim 5, wherein, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3).

7. The high tolerance contact terminal module of claim 5, wherein, The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body (00) and a mounting shell (01) are connected through a contact spring (1) and a back-to-normal spring (2), and the terminal body (00) and the mounting shell (01) are connected through a superposition shaft (3). The utility model relates to a terminal body 8. The high tolerance contact terminal module of claim 4, wherein, The two vertical pieces (11) of the contact spring (1) are integrally connected vertically through the transverse piece (10), forming an H-shaped structure with an upper insertion hole (12) and a lower insertion hole (13), and the transverse piece (10) forms an inner shaft hole (17) in the middle, which is fitted into the middle section of the superposed shaft (3) with interference. The inner walls of the two vertical pieces (11) are symmetrically formed with protruding circular arc contact blocks (14) at the upper and lower ends.

9. The high tolerance contact terminal module of claim 8, wherein, The transverse piece (10) is provided with an anti-rotation positioning groove (15) in the middle and a positioning block (16) with the same profile size on one side, and the center of the positioning block (16) is provided with an inner shaft hole (17), and the adjacent positioning block (16) is sleeved in the anti-rotation positioning groove (15).

10. The high tolerance contact terminal module of claim 9, wherein, The transverse piece (10) is stamped to form a concave rectangular anti-rotation positioning groove (15) and a protruding rectangular positioning block (16) in the middle position.