Large-offset tolerance type jack terminal assembly

Abstract

The utility model relates to the technical field of terminals, in particular to a large offset tolerance type jack terminal assembly, which solves the problem of poor offset tolerance capacity of a terminal in the prior art, and comprises a jack terminal, the jack terminal comprises a connecting part, at least one elastic arm is respectively arranged on two opposite sides in the connecting part, contacts are arranged on the elastic arms, and the contacts are connected with the jack terminal. Before the terminals are inserted oppositely, the contact on the elastic arm on one side of the connecting part crosses the contact on the elastic arm on the other side of the connecting part. The beneficial effects are that the contacts on the two sides of the connecting part adopt a cross arrangement structure, so that the contacts on one side of the connecting part cross the contacts on the other side of the connecting part, and the contacts are in interference fit with theoretical positions of the contact surface of the connector; the deformation range of the elastic arm is increased, so that the moving range of the contact is expanded, the offset tolerance capability of the terminal is effectively improved, and the positioning requirement on a connector is low; when the jack terminal is plugged with the connector, the contact can be effectively contacted with the contact surface of the connector, so that the reliability of connection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to terminal technical field, especially point to a jack terminal subassembly. BACKGROUND

[0002] With the rapid development of new energy electric vehicles, its electronic system is developing towards integration and modularization, modern vehicles are more and more intelligent, and a large number of electronic control units are applied to various systems of vehicles, and a large amount of data transmission and power supply need to be carried out between these systems; integration and modularization result in a large number of component arrangements, large PCB board size, and thus low insertion position accuracy during plug connection; based on the above pain points, it is necessary to develop a jack terminal subassembly with small structure, reliable contact connection and convenient installation operation.

[0003] The patent with publication number CN220628278U discloses a terminal, which comprises a supporting part, a first elastic arm, a second elastic arm and a plug-in part; the plug-in part is used for plugging into a circuit board; the supporting part is connected with the plug-in part; the supporting part is connected with the first elastic arm and the second elastic arm, and the first elastic arm and the second elastic arm are oppositely arranged and extend towards the side away from the supporting part, so as to jointly hold a mating terminal matched with the terminal; the plug-in part is connected with the supporting part, and the plug-in part, the first elastic arm and the second elastic arm are located on the same side of the supporting part.

[0004] The elastic arms of the above-mentioned terminal are symmetrically arranged, the minimum contact gap is zero, the offset tolerance capacity of the terminal is poor, the offset tolerance capacity refers to the size of the relative offset dimension of the contact part to the terminal when the connector is plugged into the terminal, that is, the capacity of the terminal to accommodate the offset error dimension of the connector, when the offset dimension of the connector is too large, part of the contacts on the plug-in terminal cannot form effective contact with the connector, resulting in reduced or failed product function, and part of the terminals cannot meet the use requirement. UTILITY MODEL CONTENTS

[0005] The utility model provides a large offset tolerance type jack terminal subassembly, solves the problem of poor offset tolerance capacity of the terminal in the prior art.

[0006] The technical scheme of the utility model is as follows:

[0007] A large offset tolerance type jack terminal subassembly, comprising a jack terminal, the jack terminal comprises a connecting part, at least one elastic arm is arranged on the opposite sides in the connecting part, a contact is arranged on the elastic arm, before terminal plugging, the contact on the elastic arm on one side of the connecting part is beyond the contact on the elastic arm on the other side of the connecting part. The contacts on the two sides of the connecting part adopt the cross arrangement mode, so that the deformation range of the elastic arm is increased when the jack terminal is plugged into the connector, and thus the moving range of the contact is expanded, the offset tolerance capacity of the terminal is effectively increased, the contact can effectively contact the connector, and the reliability of the connection is ensured.

[0008] The root of the elastic arm is integrally connected with the upper end of the connecting part through an arc structure. The arc structure plays a guiding role, facilitating the plug of the connector to enter between the elastic arms when the connector is connected, and facilitating the realization of quick connection.

[0009] The head of the elastic arm is provided with an abutting part which cooperates with the inner wall of the connecting part. When the offset is too large, the elastic arm deforms greatly, the abutting part on the elastic arm abuts tightly with the inner wall of the connecting part, and the inner wall of the connecting part provides a forward force to the elastic arm through the abutting part to prevent the elastic arm from deforming too much and yielding, and to play a role in correcting the position of the connector.

[0010] The lower end of the connecting part is provided with a welding part which faces the inner side of the connecting part or the outer side of the connecting part. The welding part is made by bending, and forms a flow after being welded with the PCB.

[0011] The lower end of the connecting part is provided with a vertically arranged positioning pin which extends downward beyond the welding part. When the terminal is installed, the positioning pin is inserted into the positioning hole on the PCB to realize the positioning of the terminal on the PCB, and ensure the accurate installation position of the terminal on the PCB.

[0012] The elastic arms on the opposite sides of the connecting part are arranged in a staggered manner, and the lengths of the elastic arms on the left and right sides of the connecting part are equal. The contacts on the elastic arms are arranged in a left-right crossing manner, and at this time the contacts on the left and right sides of the connecting part are at the same height.

[0013] The elastic arm includes a short elastic arm and a long elastic arm, the short elastic arm and the long elastic arm are respectively arranged on opposite sides of the connecting part, and the short elastic arm and the long elastic arm are in position correspondence. The contacts on the short elastic arm and the long elastic arm are arranged in an up-down crossing manner, and at this time the contacts on the left and right sides of the connecting part are at different heights.

[0014] The long elastic arm is provided with a reinforcing rib. The reinforcing rib ensures that the long elastic arm can provide a forward force with sufficient strength.

[0015] The terminal assembly further includes a suction cap detachably connected with the jack terminal, the suction cap is provided with a insertion slot, the inner side of the insertion slot is provided with a protrusion, the upper end of the connecting part is provided with an insertion part, the insertion slot is connected with the insertion part in an insertion manner, and the protrusion is in interference fit with the insertion part. Since the size of the jack terminal is small, it is not convenient for the insertion equipment to clamp it. The suction cap is used as a carrier for moving the jack terminal, and the insertion equipment moves and installs the jack terminal by sucking the suction cap.

[0016] The insertion part and the positioning pin are both provided with a chamfer. It is convenient for the jack terminal to be quickly inserted into the positioning hole on the PCB, which is conducive to the quick installation of the jack terminal; it is convenient for the jack terminal to be quickly inserted into the insertion slot on the suction cap,

[0017] The utility model discloses a beneficial effect is: the contact of connecting portion both sides adopts the structure of cross arrangement, makes the contact of connecting portion one side to cross the contact of connecting portion other side, makes the contact interference in the theoretical position of connector contact surface, increase the deformation range of elastic arm, and then make the contact moving range expand, effectively increase the shift tolerance ability of terminal, and the positioning requirement of connector is low, when the plug-in terminal and connector are plugged, can make the contact and the contact surface of connector effectively contact, guarantee the reliability of connection.

[0018] The head of the elastic arm is provided with a contact portion, when the deviation of the connector is too large, the elastic arm is deformed greatly, the contact portion is in abutment with the inner wall of the connecting portion, the inner wall of the connecting portion provides a forward force to the elastic arm through the contact portion, to prevent the elastic arm from being deformed too much and yielding, and to correct the position of the connector.

[0019] The plug-in terminal is integrally formed by stamping and bending, and has a small appearance structure, so that the plug-in terminal is arranged on the PCB conveniently and has low cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0021] Figure 1 It is a large offset tolerance type plug-in terminal assembly embodiment 1 plug-in terminal structure schematic Figure 1 ;

[0022] Figure 2 It is a plug-in terminal structure schematic in embodiment 1 Figure 2 ;

[0023] Figure 3 It is a plug-in terminal and suction cap connection schematic diagram in embodiment 1;

[0024] Figure 4 It is a suction cap structure schematic diagram in embodiment 1;

[0025] Figure 5 It is a plug-in terminal and PCB, plug-in terminal and connector connection schematic diagram in embodiment 1;

[0026] Figure 6 It is a plug-in terminal structure schematic in embodiment 2 Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the socket terminal structure in Example 2. Figure 2 ;

[0028] Figure 8 This is a schematic diagram showing the connection between the socket terminal and the adsorption cap in Example 2;

[0029] Figure 9 This is a schematic diagram of the adsorption cap structure in Example 2;

[0030] Figure 10 This is a schematic diagram showing the connection between the socket terminal and the PCB board, and between the socket terminal and the connector in Example 2.

[0031] In the diagram: 1. Plug-in part, 2. Elastic arm, 21. Contact point, 22. Abutting part, 201. Short elastic arm, 202. Long elastic arm, 203. Reinforcing rib, 3. Connecting part, 4. Positioning pin, 5. Soldering part, 6. Adsorption cap, 61. Plug-in slot, 62. Protrusion, 7. PCB board, 71. Positioning hole, 8. Connector. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1, such as Figures 1-5 As shown, a large offset tolerance type socket terminal assembly includes a socket terminal, which includes a connecting portion 3. At least one elastic arm 2 is provided on each of the opposite sides of the connecting portion 3. The elastic arm 2 has a contact 21. Before the terminals are inserted, the contact 21 on one side of the elastic arm 2 of the connecting portion 3 passes over the contact 21 on the other side of the elastic arm 2. The contacts on both sides of the connecting portion are arranged in a cross-shaped manner, which increases the deformation range of the elastic arm when the socket terminal is inserted into the connector, thereby expanding the contact movement range and effectively increasing the offset tolerance of the terminal. This ensures effective contact between the contact and the connector, guaranteeing the reliability of the connection.

[0034] Furthermore, the elastic arms 2 on opposite sides of the connecting part 3 are staggered, and the lengths of the elastic arms 2 on the left and right sides of the connecting part 3 are equal. In this embodiment, an elastic arm 2 is provided on each side of the connecting part 3, and the two elastic arms 2 are staggered left and right. The contact point 21 on one elastic arm 2 crosses the contact point on the other elastic arm 2, that is, the contact point 21 is arranged crosswise, and the contact point 21 on the two elastic arms 2 is at the same height. The contact point 21 is interference with the theoretical position of the contact surface of the connector 8.

[0035] Further, the root of the elastic arm 2 is connected with the upper end of the connecting part 3 through an arc structure. The arc structure has a guiding effect, which facilitates the insertion of the plug of the connector 8 between the elastic arms 2 and facilitates the realization of quick connection.

[0036] Further, the head of the elastic arm 2 is provided with an abutting part 22, which cooperates with the inner wall of the connecting part 2. When the deviation size of the connector 8 is too large, the elastic arm 2 will be deformed greatly. At this time, the abutting part 22 on the elastic arm 2 tightly cooperates with the inner wall of the connecting part 3, and the inner wall of the connecting part 3 provides a forward force to the elastic arm 2 through the abutting part 22 to prevent the elastic arm 2 from being deformed too much.

[0037] Further, the lower end of the connecting part 3 is provided with a welding part 5, which is directed to the inside of the connecting part 3 or to the outside of the connecting part 3. In this embodiment, the welding part 5 is directed to the inside of the connecting part 3, and the welding part 5 is made by bending. When the jack terminal is installed, the welding part 5 forms a flow after being welded with the PCB 7.

[0038] Further, the lower end of the connecting part 3 is provided with a vertically arranged positioning pin 4, which extends downward beyond the welding part 5. The PCB 7 is provided with a positioning hole 71. When the jack terminal is installed, the positioning pin 4 is inserted into the positioning hole 71 to realize the positioning of the terminal on the PCB 7, thereby ensuring the accurate installation position of the terminal on the PCB 7. In addition, the positioning pin 4 is provided with a chamfer, which facilitates the quick entry of the positioning pin into the positioning hole 71, thereby facilitating the quick installation of the jack terminal.

[0039] Embodiment 2, as shown in Figures 6-10 the difference from embodiment 1 is that a large offset tolerance type jack terminal assembly, the elastic arm 2 includes a short elastic arm 201 and a long elastic arm 202, the short elastic arm 201 and the long elastic arm 202 are respectively arranged on the opposite sides of the connecting part 3, and the short elastic arm 201 and the long elastic arm 202 are positionally corresponding. In this embodiment, one short elastic arm 201 and one long elastic arm 202 are arranged side by side on the two sides of the connecting part 3, the short elastic arm 201 on one side of the connecting part 3 is positionally corresponding to the long elastic arm 202 on the other side of the connecting part 3, the contacts 21 on the short elastic arm 201 and the long elastic arm 202 are vertically staggered, i.e. the contacts 21 are arranged in cross, the contacts 21 on the short elastic arm 201 and the long elastic arm 202 are in the same vertical plane, and the contacts 21 are in the theoretical position of the contact surface of the connector 8.

[0040] Further, the long elastic arm 202 is provided with a reinforcing rib 203. The reinforcing rib 203 ensures that the long elastic arm 202 can provide a forward force with sufficient strength.

[0041] Embodiment 3, on the basis of embodiment 1 or embodiment 2, a large offset tolerance type jack terminal assembly, asFigure 3 、 Figure 4 、 Figure 8 、 Figure 9 As shown in FIG. 6, the terminal assembly further comprises a suction cap 6 detachably connected with the jack terminal, the suction cap 6 is provided with a plug groove 61, the inner side of the plug groove 61 is provided with a protrusion 62, the upper end of the connecting part 3 is provided with a plug part 1, the plug groove 61 is plug-connected with the plug part 1, and the protrusion 62 is interference-fitted with the plug part 1. The plug part 1 is provided with a chamfer. After the suction cap 6 is connected with the jack terminal, the plug part 1 is inserted into the plug groove 61, at this time, the protrusion 62 in the plug groove 61 is tightly fitted with the side surface of the plug part 1, the fixing force of the suction cap 6 on the jack terminal is ensured, the jack terminal and the suction cap 6 cannot be easily separated, and after the jack terminal is welded and connected with the PCB 7, the suction cap 6 can be pulled out upward, so that the jack terminal is separated from the suction cap. The suction cap 6 serves as a carrier for the jack terminal, and the plug connection mode is convenient for quick connection or separation of the jack terminal and the suction cap. Since the jack terminal is small in size and inconvenient to be gripped by the plug-in equipment, the suction cap 6 is provided with a suction plane, the plug-in equipment can suck the suction cap 6 through the suction plane, and then drives the jack terminal to be installed, which is beneficial to automatic installation of the jack terminal.

[0042] It should be noted that the structure of the plug-in equipment and the connection structure of the plug-in equipment and the suction cap 6 are prior art, and they are not the technical points to be protected by the utility model.

[0043] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A large offset tolerance type socket terminal assembly, comprising socket terminals, characterized in that, The socket terminal includes a connecting part (3), and at least one elastic arm (2) is provided on each of the opposite sides inside the connecting part (3). The elastic arm (2) is provided with a contact (21). Before the terminal is inserted, the contact (21) on one side of the elastic arm (2) of the connecting part (3) passes over the contact (21) on the other side of the elastic arm (2) of the connecting part (3).

2. The large offset tolerance type socket terminal assembly according to claim 1, characterized in that, The root of the elastic arm (2) is integrally connected to the upper end of the connecting part (3) through an arc structure.

3. The large offset tolerance type socket terminal assembly according to claim 1, characterized in that, The head of the elastic arm (2) is provided with a contact part (22), which cooperates with the inner wall of the connecting part (3).

4. The large offset tolerance type socket terminal assembly according to claim 1, characterized in that, The lower end of the connecting part (3) is provided with a welding part (5), which faces the inside of the connecting part (3) or the outside of the connecting part (3).

5. The large offset tolerance type socket terminal assembly according to any one of claims 1 to 4, characterized in that, The lower end of the connecting part (3) is provided with a vertically arranged positioning pin (4), which extends downward out of the welding part (5).

6. The large offset tolerance type socket terminal assembly according to claim 5, characterized in that, The elastic arms (2) on both sides of the connecting part (3) are staggered, and the lengths of the elastic arms (2) on the left and right sides of the connecting part (3) are equal.

7. The large offset tolerance type socket terminal assembly according to claim 5, characterized in that, The elastic arm (2) includes a short elastic arm (201) and a long elastic arm (202). The short elastic arm (201) and the long elastic arm (202) are respectively arranged on opposite sides of the connecting part (3), and the positions of the short elastic arm (201) and the long elastic arm (202) are corresponding.

8. The large offset tolerance type socket terminal assembly according to claim 6, characterized in that, The long elastic arm (202) is provided with reinforcing ribs (203).

9. The large offset tolerance type socket terminal assembly according to any one of claims 1-4 and 6-8, characterized in that, It also includes an adsorption cap (6) that is detachably connected to the plug terminal. The adsorption cap (6) is provided with a plug groove (61), and a protrusion (62) is provided on the inner side of the plug groove (61). The upper end of the connecting part (3) is provided with a plug part (1). The plug groove (61) is plugged into the plug part (1), and the protrusion (62) is interference-fitted with the plug part (1).

10. The large offset tolerance type socket terminal assembly according to claim 9, characterized in that, Both the plug (1) and the positioning pin (4) are chamfered.

Images