Terminal holding structure and connector

Abstract

The application discloses a terminal holding structure and a connector, the terminal holding structure comprising an outer conductor, an insulating sleeve and at least one conductive terminal, the outer conductor being provided with a plug-in cavity, the insulating sleeve comprising a sleeve body and a limiting part, the sleeve body being provided with at least one terminal channel, the terminal channel corresponding to the conductive terminal one by one, the limiting part selectively abutting against the sleeve body, the conductive terminal comprising a plug-in part and a fixed part, the plug-in part being bent and extended to form the fixed part, when the plug-in part is inserted into the terminal channel and the sleeve body is inserted into the plug-in cavity, the limiting part abuts against the sleeve body to abut and fix the fixed part on the sleeve body; the conductive terminal is effectively fixed on the insulating sleeve without being designed as a barb structure, a characteristic impedance mutation caused by the barb is effectively avoided, the signal transmission stability of the connector is greatly improved, and the limiting part of the insulating sleeve abuts against the sleeve body to abut and fix the fixed part on the sleeve body, so that the assembling efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connector manufacturing, in particular to a terminal holding structure and a connector. BACKGROUND

[0002] In the prior art, in order to simplify the assembly process and improve the connection stability between the terminal and the glue core, the existing terminal generally has a guide section and a barb section, wherein the diameter of the guide section is generally slightly smaller than the groove width of the glue core, and the diameter of the barb section is generally slightly larger than the groove width of the glue core. When the terminal is inserted into the glue core groove, the guide section plays a role in guiding the terminal, and the barb section is in interference fit with the glue core groove and the barb pierces the glue core groove to achieve the fixation of the terminal and the glue core, thereby preventing the terminal from exiting. After the terminal is assembled, the guide section protrudes outside the glue core, and the barb section is fixedly engaged in the glue core.

[0003] However, due to the barb section having a barb, the shapes of the barb and the non-barb part are inconsistent, which may cause the characteristic impedance of the connector to change and affect the electrical parameters of the connector. Moreover, the shapes of the barb section and the glue core fitting part are inconsistent, and during the process of the barb section entering the glue core, the barb may pierce the remaining part of the glue core groove in the entering direction, thereby reducing the covering force of the glue core on the terminal, and the terminal is prone to displacement in the direction of the barb section entering the glue core under the action of external force.

[0004] In addition, the prior art also uses a split structure of the glue core to fix the terminal without a barb, but this way has high production and assembly costs of parts, which is not conducive to large-scale popularization and application. SUMMARY

[0005] The purpose of the present application is to provide a terminal holding structure and a connector, which can effectively fix the conductive terminal on the insulating sleeve without designing the conductive terminal as a barb structure, effectively avoid the characteristic impedance mutation caused by the barb, greatly improve the signal transmission stability of the connector, and the limiting part of the insulating sleeve abuts against the sleeve body to abut and fix the fixing part on the sleeve body, thereby effectively improving the assembly efficiency.

[0006] In order to achieve the above purpose, the present application discloses a terminal holding structure, which comprises an outer conductor, an insulating sleeve and at least one conductive terminal, the outer conductor is provided with a plug-in cavity, the insulating sleeve comprises a sleeve body and a limiting part, the sleeve body is provided with at least one terminal channel, the terminal channel corresponds to one terminal body, the limiting part selectively abuts against the sleeve body, the conductive terminal comprises a plug-in part and a fixing part, the plug-in part is bent and extended to form the fixing part, when the plug-in part is inserted into the terminal channel and the sleeve body is inserted into the plug-in cavity, the limiting part abuts against the sleeve body to abut and fix the fixing part on the sleeve body.

[0007] Compared with the prior art, the insulating sleeve of the application comprises a sleeve body and a limiting part, the limiting part selectively abuts against the sleeve body, when the inserting part is inserted into the terminal channel and the sleeve body is inserted into the inserting cavity, the limiting part abuts against the sleeve body to abut and fix the fixing part on the sleeve body, on the one hand, the conductive terminal is fixed on the sleeve body by abutting, that is, the conductive terminal can be effectively fixed on the insulating sleeve without designing the conductive terminal as a barb structure, the characteristic impedance mutation caused by the barb is effectively avoided, and the signal transmission stability of the connector is greatly improved; on the other hand, the limiting part of the insulating sleeve abuts against the sleeve body to abut and fix the fixing part on the sleeve body, the fixing of the conductive terminal can be realized without additional assembly of the insulating sleeve, and the assembly efficiency is effectively improved.

[0008] Preferably, the limiting part is swing-connected to the sleeve body, and the limiting part swings to abut against or move away from the sleeve body.

[0009] Specifically, the insulating sleeve further comprises a flexible connecting sheet, the connecting sheet is connected to the sleeve body and the limiting part respectively, and the limiting part is swing-connected to the sleeve body through the connecting sheet.

[0010] Specifically, one end of the sleeve body at the entrance of the terminal channel extends in a direction perpendicular to the inserting direction of the inserting part to form an abutting part, and the limiting part selectively abuts and fixes the fixing part on the abutting part.

[0011] Specifically, the connecting sheet is arranged on the abutting part, and the limiting part swings to abut against or move away from the abutting part.

[0012] Specifically, the included angle between the inserting part and the fixing part is less than 180°, and when the inserting part is completely inserted into the terminal channel, the fixing part is attached to the abutting part.

[0013] Preferably, the included angle between the inserting part and the fixing part is 90°.

[0014] Preferably, the sleeve body, the limiting part and the connecting sheet are in an integral molding structure.

[0015] Preferably, one end of the outer conductor at the entrance of the inserting cavity extends in the opposite direction of the inserting direction of the sleeve body to form a mounting seat, the mounting seat is provided with a guide groove, the sleeve body can slide along the guide groove and be guided into the inserting cavity, and when the sleeve body slides along the guide groove, the fixing part is pressed by the guide groove to abut against the sleeve body.

[0016] Preferably, the terminal holding structure further comprises a baffle, and the mounting seat is provided with a limiting slot for inserting the baffle, and when the baffle is inserted into the limiting slot, the baffle abuts against and positions the insulating sleeve on the outer conductor.

[0017] Correspondingly, the application further discloses a connector comprising the terminal holding structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the terminal holding structure of the application;

[0019] Figure 2 is an exploded schematic diagram of Figure 1 ;

[0020] Figure 3 is a structural schematic diagram of the insulating sleeve provided with the conductive terminal before being inserted into the outer conductor of the application;

[0021] Figure 4 is a structural schematic diagram of the insulating sleeve provided with the conductive terminal after being partially inserted into the outer conductor of the application;

[0022] Figure 5 is a structural schematic diagram of the insulating sleeve provided with the conductive terminal after being completely inserted into the outer conductor of the application. DETAILED DESCRIPTION

[0023] To make the technical content, structural features, achieved purposes and effects of the application clear, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0024] Please refer to Figure 1 , the connector of the embodiment comprises a terminal holding structure, which can directly and stably fix the conductive terminal 30 without barbs on the insulating sleeve 20, avoids the damage of the connector caused by the displacement of the conductive terminal 30, and avoids the sudden change of the electrical impedance caused by the barbs of the traditional conductive terminal 30, greatly improves the signal transmission stability of the connector.

[0025] Please refer to Figures 1-5 , the terminal holding structure of the embodiment comprises an outer conductor 10, an insulating sleeve 20 and two conductive terminals 30, the outer conductor 10 is provided with a plug-in cavity 11, the insulating sleeve 20 comprises a sleeve body 21 and a limiting part 22, the sleeve body 21 can be inserted and limited in the plug-in cavity 11, the sleeve body 21 is an insulating part, used for fixing the conductive terminals 30 and insulatingly separating the conductive terminals 30. The sleeve body 21 is provided with two terminal channels, and the terminal channels correspond to the conductive terminals 30 one by one. The terminal channels are formed on the sleeve body 21 with a certain interval, so that the conductive terminals 30 fixed in the terminal channels are insulatingly separated.

[0026] It can be understood that the one-to-one correspondence between the terminal channel and the conductive terminal 30 means that the number of terminal channels is consistent with the number of conductive terminals 30 to meet the insulation and fixation of each conductive terminal 30 by the sleeve body 21. In addition, in some embodiments, when each terminal channel is used to fix a corresponding type of conductive terminal 30, the one-to-one correspondence between the terminal channel and the conductive terminal 30 means that the number of terminal channels is consistent with the number of conductive terminals 30, and each terminal channel can fix a corresponding type of conductive terminal 30.

[0027] Referring to Figures 1-5 As shown, the limiting portion 22 is selectively abutted against the sleeve body 21, the conductive terminal 30 comprises an insertion portion 31 and a fixing portion 32, the insertion portion 31 is bent and extended to form the fixing portion 32, when the insertion portion 31 is inserted into the terminal channel and the sleeve body 21 is inserted into the insertion cavity 11, the limiting portion 22 abuts against the sleeve body 21 to abut and fix the fixing portion 32 on the sleeve body 21. Preferably, the limiting portion 22 is swingably connected to the sleeve body 21, and the limiting portion 22 swings to abut or away from the sleeve body 21.

[0028] Specifically, the insulating sleeve 20 further comprises a flexible connecting sheet 23, the connecting sheet 23 connects the sleeve body 21 and the limiting portion 22 respectively, and the limiting portion 22 is swingably connected to the sleeve body 21 through the connecting sheet 23. Preferably, the sleeve body 21, the limiting portion 22 and the connecting sheet 23 are integrally formed, which facilitates the direct molding of the entire insulating sleeve 20 by means of reverse molding, and the insulating sleeve 20 is provided as a single component, which is easier to manufacture and assemble later.

[0029] The sleeve body 21 is extended in a direction perpendicular to the insertion direction of the insertion portion 31 to form an abutting portion 211 at one end of the sleeve body 21 located at the entrance of the terminal channel, and the limiting portion 22 selectively abuts and fixes the fixing portion 32 on the abutting portion 211. The abutting portion 211 of the present embodiment is formed above the one end of the sleeve body 21 located at the entrance of the terminal channel, the connecting sheet 23 is arranged at the corner of the side wall of the abutting portion 211, and the limiting portion 22 swings to be folded on the part of the sleeve body 21 located at the entrance of the terminal channel to achieve abutting or away from the abutting portion 211, at this time, the limiting portion 22 swings around the corner of the side wall of the abutting portion 211 to abut or away from the abutting portion 211.

[0030] Further, the included angle between the insertion part 31 and the fixing part 32 is less than 180°, preferably, the included angle between the insertion part 31 and the fixing part 32 is 90°, when the insertion part 31 is fully inserted into the terminal channel, the fixing part 32 is attached to the abutting part 211, when the limiting part 22 is swung around the corner of the side wall of the abutting part 211 to abut against the abutting part 211, the fixing part 32 is pressed on the abutting part 211 by the limiting part 22, thereby realizing the pressing and fixing of the conductive terminal 30 on the insulating sleeve 20. In other preferred modes, the included angle between the insertion part 31 and the fixing part 32 can also be other angles, at this time, the abutting part 211 needs to be provided with an inclined surface matching the included angle between the insertion part 31 and the fixing part 32, so that the fixing part 32 is fully attached to the abutting part 211.

[0031] As shown in Figures 1-5 The sleeve body 21 of the present embodiment is reversely extended along the insertion direction of the sleeve body 21 at one end of the entrance of the insertion cavity 11 to form a mounting seat 12, the mounting seat 12 is provided with a guide groove 121, the sleeve body 21 can slide along the guide groove 121 and be guided into the insertion cavity 11, when the sleeve body 21 slides along the guide groove 121, the fixing part 32 is pressed by the side wall of the guide groove 121 as shown in Figure 4 and then fully abuts against the sleeve body 21 as shown in Figure 5 The design of the guide groove 121, on the one hand, is used to automatically complete the pressing and fixing of the conductive terminal 30 by the limiting part 22 when the sleeve body 21 is inserted into the insertion cavity 11, so as to simplify the assembly process; on the other hand, it is used to guide the insertion between the sleeve body 21 and the insertion cavity 11, and improve the insertion efficiency.

[0032] Preferably, the terminal holding structure of the present embodiment further comprises a baffle 40, the mounting seat 12 is provided with a limiting groove 122 for inserting the baffle 40, when the baffle 40 is inserted into the limiting groove 122, the baffle 40 abuts against and positions the insulating sleeve 20 on the outer conductor 10. At this time, the baffle 40 abuts against the limiting part 22, thereby limiting the movement of the insulating sleeve 20 and the conductive terminal 30 in the direction of insertion, effectively preventing the displacement of the insulating sleeve 20 and the conductive terminal 30 due to external force, effectively improving the yield and prolonging the service life of the connector.

[0033] As shown in Figures 1-5 The assembly process of the connector of the present embodiment will be described in detail as follows:

[0034] 1. Insert the insertion part 31 of all the conductive terminals 30 into the terminal channel along the entrance of the terminal channel, and make the fixing part 32 of the conductive terminal 30 abut against the end of the sleeve body 21 at the entrance of the terminal channel, at this time, the limiting part 22 is away from the sleeve body 21;

[0035] 2、align the sleeve body 21 to the guide groove 121 and slide along the guide groove 121, in the sliding process, the limiting part 22 is pressed by the side wall of the guide groove 121 and swings and gradually converges to the tail of the sleeve body 21, until the limiting part 22 completely abuts on the abutting part 211, at this time, the fixed part 32 of the conductive terminal 30 is pressed between the limiting part 22 and the abutting part 211;

[0036] 3、insert the baffle 40 into the limiting groove 122, the baffle 40 abuts the limiting part 22 to prevent the insulating sleeve 20 from retreating along the insertion direction.

[0037] It should be noted that the embodiment shows the case that the number of the conductive terminal 30 and the terminal channel is two, of course, the number of the conductive terminal 30 and the terminal channel can be one, three or four, etc., the number of the conductive terminal 30 and the terminal channel is selected according to the actual production demand, which is not limited here. At this time, the number and swinging mode of the limiting part 22 can be adjusted according to actual needs, which is not described here.

[0038] In combination Figures 1-5 , the insulating sleeve 20 of the application includes a sleeve body 21 and a limiting part 22, the limiting part 22 abuts the sleeve body 21 selectively, when the insertion part 31 is inserted into the terminal channel and the sleeve body 21 is inserted into the insertion cavity 11, the limiting part 22 abuts the sleeve body 21 to abut and fix the fixed part 32 on the sleeve body 21, on the one hand, the conductive terminal 30 is fixed on the sleeve body 21 by the abutting mode, that is, the conductive terminal 30 does not need to be designed as a barb structure to effectively fix the conductive terminal 30 on the insulating sleeve 20, effectively avoiding the characteristic impedance mutation caused by the barb, greatly improving the signal transmission stability of the connector; on the other hand, the limiting part 22 of the insulating sleeve 20 abuts the sleeve body 21 to abut and fix the fixed part 32 on the sleeve body 21, without additional assembly of the insulating sleeve 20, the fixing of the conductive terminal 30 can be realized, effectively improving the assembly efficiency.

[0039] The above only discloses the preferred embodiment of the application, of course, cannot limit the scope of the application, therefore, the equivalent changes made in the patent range of the application still belong to the scope covered by the application.

Claims

1. A terminal holding structure characterized by comprising: The terminal holding structure comprises an outer conductor, an insulating sleeve and at least one conductive terminal, the outer conductor is provided with a plug-in cavity, the insulating sleeve comprises a sleeve body and a limiting part, the sleeve body is provided with at least one terminal channel, the terminal channel corresponds to the terminal one by one, the limiting part selectively abuts against the sleeve body, the conductive terminal comprises a plug-in part and a fixed part, the plug-in part is bent and extended to form the fixed part, when the plug-in part is inserted into the terminal channel and the sleeve body is inserted into the plug-in cavity, the limiting part abuts against the sleeve body to abut and fix the fixed part on the sleeve body; One end of the outer conductor at the entrance of the plug-in cavity reversely extends along the insertion direction of the sleeve body to form a mounting seat, the mounting seat is provided with a guide groove, the sleeve body can slide along the guide groove and be guided into the plug-in cavity, when the sleeve body slides along the guide groove, the fixed part is pressed by the guide groove to abut against the sleeve body; The terminal holding structure further comprises a baffle, the mounting seat is provided with a limiting groove for inserting the baffle, when the baffle is inserted into the limiting groove, the baffle abuts against and positions the insulating sleeve on the outer conductor.

2. The terminal-holding structure according to claim 1, wherein: The limiting part swingably connects the sleeve body, the limiting part swings to abut against or away from the sleeve body.

3. The terminal-holding structure according to claim 2, wherein: The insulating sleeve further comprises a flexible connecting sheet, the connecting sheet connects the sleeve body and the limiting part respectively, the limiting part swingably connects the sleeve body through the connecting sheet.

4. The terminal-holding structure according to claim 3, wherein: One end of the sleeve body at the entrance of the terminal channel extends along the direction perpendicular to the plug-in direction of the plug-in part to form an abutting part, the limiting part selectively abuts and fixes the fixed part on the abutting part.

5. The terminal-holding structure according to claim 4, wherein: The connecting sheet is arranged on the abutting part, the limiting part swings to abut against or away from the abutting part.

6. The terminal-holding structure according to claim 4, wherein: The included angle between the plug-in part and the fixed part is less than 180°, when the plug-in part is completely inserted into the terminal channel, the fixed part is attached on the abutting part.

7. The terminal-holding structure according to claim 3, wherein: The sleeve body, the limiting part and the connecting sheet are integrally formed.

8. A connector characterized by: The terminal holding structure comprises the terminal holding structure according to any one of claims 1-7.

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