Anti-wear terminal, female seat and connector
By setting arc-shaped contact surfaces and guide devices on the connector terminals, the problems of wear and increased contact resistance during inclined mating of the connector are solved, thereby improving stability and reliability.
Patent Information
- Application Number
- CN202423176191.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-20
AI Technical Summary
When existing connectors are inserted at an angle to the contact surface of the female terminal, wear and increased contact resistance are likely to occur. Furthermore, traditional solutions increase production costs and processing requirements, thus affecting production efficiency.
By setting arc-shaped second and third abutment surfaces on the terminals, the contact area is increased, and the insertion is assisted by a guide device, thereby reducing frictional resistance and improving contact reliability and stability.
It effectively reduces mating friction resistance, increases contact resistance, ensures mating stability and reliability, avoids terminal pin retraction issues, and improves the stability of the female connector and the overall stability of the connector.
Smart Images
Figure CN223680422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to connector technical field, especially a kind of anti-abrasion terminal, female seat and connector. BACKGROUND
[0002] Connector is the device that current or signal connection is realized by the male seat and female seat are inserted. When the contact surface of female seat terminal has inclination, after male seat terminal is inserted, the end point and the edge of the contact surface two sides are contacted with male terminal, to cause the wear and tear of insertion, and the contact resistance increases. In order to avoid this situation, the usual practice is to use guiding device to assist insertion, ensure accurate insertion;Or improve machining accuracy, reduce the influence of manufacturing tolerance, ensure that terminal can be normally inserted, reduce wear and tear and contact resistance. But these ways cannot fundamentally solve this problem, and improve production processing requirements, affect production efficiency, cause cost to increase in a certain extent. SUMMARY
[0003] Based on this, the purpose of the utility model is to provide a kind of anti-abrasion terminal, by setting arc-shaped second abutment surface and third abutment surface on the two sides of first abutment surface, it can reduce the frictional resistance of insertion, be conducive to insertion;And because the contact area of two terminals of insertion is larger, the contact resistance is smaller, the contact reliability is improved, can ensure the stability and reliability of its insertion, contact.
[0004] Another purpose of the utility model is to provide a kind of female seat, is equipped with anti-abrasion terminal with high contact reliability, improves its insertion stability.
[0005] Still another purpose of the utility model is to provide a kind of connector, by setting female seat with anti-abrasion terminal and male seat with arc-shaped lead-in part, can effectively reduce the resistance of insertion, avoid terminal PIN problem.
[0006] A kind of anti-abrasion terminal, fixedly inserted in the terminal hole position of insulating shell, including:
[0007] First holding portion is used for clamping with terminal hole position;
[0008] First abutment portion is connected to the first holding portion;The first abutment portion is bent towards one side, and first abutment surface is provided along the length direction, and second abutment surface and third abutment surface are provided on the two sides of the first abutment surface;Second abutment surface and third abutment surface are the convex arc surface.
[0009] Further, the projection width of the second abutment surface and the third abutment surface on the first abutment surface is less than the width of the first abutment surface.
[0010] Further, the first holding part is provided with a first clamping structure, the first clamping structure comprises a plurality of protruding barbs arranged on the first holding part in the width direction, and is used for interference fixing with the insulating shell.
[0011] Further, the first holding part is further provided with a second clamping structure, the second clamping structure comprises a plurality of protruding clamping points arranged on the first holding part in the thickness direction.
[0012] Further, the anti-wear terminal further comprises:
[0013] A first soldering leg is arranged at one end of the first holding part away from the first abutting part, and the first soldering leg is arranged to be bent at one end close to the first holding part and connected to the middle part of the first holding part.
[0014] A female seat, comprising: the anti-wear terminal of the utility model.
[0015] A connector, comprising:
[0016] A male seat and the female seat of the utility model; the male seat is provided with a male seat shell and a male seat terminal, the male seat terminal is fixedly inserted into the male seat shell; in the plug-in state of the male seat and the female seat, the first abutting part elastically abuts against the male seat terminal.
[0017] Further, the insertion end of the male seat terminal is provided with a guide-in part, and the guide-in part is arranged to be bent in an arc shape towards the side away from the anti-wear terminal.
[0018] Further, the male seat shell is provided with a second terminal hole, an inner wall of the second terminal hole is provided with a second insertion slot, and the male seat terminal is inserted into the second insertion slot; the guide-in part is bent towards the middle part of the second terminal hole and completely immersed in the inside of the second terminal hole.
[0019] Further, the male seat terminal further comprises a second abutting part connected to the guide-in part, the second abutting part is in the form of a flat sheet, and in the plug-in state of the male seat and the female seat, the second abutting part is guided to any one of the first abutting surface, the second abutting surface or the third abutting surface.
[0020] (1) The anti-wear terminal provided by the embodiment of the application can reduce the frictional resistance of plug-in by arranging the arc-shaped second abutting surface and third abutting surface on both sides of the first abutting surface, which is conducive to plug-in; and since the contact area of the two terminals during plug-in is increased and the contact resistance is reduced, the contact reliability is improved, and the stability and reliability of plug-in and contact can be ensured.
[0021] (2) By setting the first clamping structure in the width direction and the second clamping structure in the thickness direction, the holding force of the insulating shell on the wear-resistant terminal is increased from two directions of width and thickness, and the stability of the female seat is improved;
[0022] (3) By setting the exposed support point, the poor welding caused by the stress deformation of the welding leg during assembly is avoided, and then the stability of the connector is affected;
[0023] (4) By setting the arc-shaped guide part at the insertion end of the male seat terminal, the guiding function is played when the female seat is inserted, the resistance of the insertion can be effectively reduced, and the terminal PIN withdrawal problem can be avoided;
[0024] (5) By immersing the guide part into the second terminal hole, the male seat terminal bending deformation caused by the touch of the female seat during the insertion process can be effectively avoided.
[0025] In order to better understand and implement, the following will be described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 A structure diagram of a wear-resistant terminal provided for the embodiment of the application;
[0027] Figure 2 A structure diagram of a male seat terminal provided for the embodiment of the application
[0028] Figure 3 An exploded view of a connector provided for the embodiment of the application;
[0029] Figure 4 A partial enlarged view I of Figure 3 ;
[0030] Figure 5 A partial enlarged view II of Figure 3 ;
[0031] Figure 6 A structure diagram of a connector provided for the embodiment of the application;
[0032] Figure 7 A sectional view of a connector provided for the embodiment of the application.
[0033] In the figure: 10 - female seat; 11 - anti-wear terminal; 111 - first abutting portion; 1111 - first abutting surface; 1112 - second abutting surface; 1113 - third abutting surface; 112 - first retaining portion; 1121 - first clamping structure; 1122 - second clamping structure; 1123 - first support point; 113 - first solder leg; 12 - insulating shell; 121 - first terminal hole; 122 - first insertion slot; 20 - male seat; 21 - male seat terminal; 211 - lead-in portion; 212 - second abutting portion; 213 - second retaining portion; 2131 - second support point; 214 - second solder leg; 22 - male seat shell; 221 - second terminal hole; 222 - second insertion slot. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0035] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "vertical direction", "upper", "lower", "horizontal" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0036] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] Please refer to Figure 1 and Figure 3The anti-abrasion terminal provided by the embodiment of the application is fixedly inserted into a terminal hole of an insulating shell 12, and comprises a first holding part 112 and a first abutting part 111. The first holding part 112 is used for being clamped with the insulating shell. The first abutting part 111 is connected to the first holding part 112 in extension. The first abutting part 111 is bent towards one side to form an arc-shaped contact point, and is provided with a first abutting surface 1111 along the length direction, and a second abutting surface 1112 and a third abutting surface 1113 arranged on both sides of the first abutting surface 1111. The second abutting surface 1112 and the third abutting surface 1113 are arc surfaces protruding outward. When the anti-abrasion terminal 11 is arranged in parallel with a counter terminal, the first abutting surface 1111 elastically guides the counter terminal. When the anti-abrasion terminal 11 is inclined, the second abutting surface 1112 or the third abutting surface 1113 elastically guides the counter terminal.
[0038] It can be understood that, for a conventional terminal, the abutting surfaces on both sides thereof are right-angled side edges. When the terminal is inclined, the terminal can only abut against the contact surface of the counter terminal through the right-angled side edges. In this case, the plated layer of the contact surface of the counter terminal is easily scratched, and the contact resistance is easily increased due to the small contact area, thereby affecting the contact stability between the terminals. The anti-abrasion terminal 11 provided by the embodiment of the application can guide the counter terminal through the arc surfaces on both sides when the anti-abrasion terminal 11 is inclined by a certain angle. In this arrangement, the frictional resistance of the insertion of the two terminals is smaller, which is beneficial to the insertion. Moreover, the contact resistance is smaller due to the larger contact area, the contact reliability is improved, and the stability and reliability of the insertion and contact can be ensured.
[0039] Further, in some embodiments, the projection width of the second abutting surface 1112 and the third abutting surface 1113 on the first abutting surface 1111 is smaller than the width of the first abutting surface 1111. In this arrangement, the face-to-face contact area of the first abutting surface 1111 and the counter terminal can be ensured, and the contact reliability is improved. Preferably, the projection width of the second abutting surface 1112 or the third abutting surface 1113 on the first abutting surface 1111 is 1 / 2 to 2 / 3 of the width of the first abutting surface 1111. In this range, the anti-abrasion terminal 11 can have more stable contact with the counter terminal, and the contact performance is improved.
[0040] Further, in some embodiments, the first holding part 112 comprises a first clamping structure 1121, and the first clamping structure 1121 comprises a plurality of protruding barbs. It can be understood that the plurality of barbs are arranged on at least one end surface in the width direction of the first holding part 112, and are used for interference clamping with the insulating shell 12. Preferably, the barbs are symmetrically arranged on both end surfaces in the width direction of the first holding part 112, so that the connection between the first holding part 112 and the insulating shell 12 is more stable, and the stress is more uniform during assembly, and the inclination is less likely to occur.
[0041] Further, in some embodiments, the first holding part 112 further comprises a second clamping structure 1122, which comprises a plurality of clamping points arranged in the thickness direction of the first holding part 112. It can be understood that the plurality of clamping points are arranged on at least one end surface in the thickness direction of the first holding part 112, and are used to be fixedly connected with the insulating shell 12 by interference in the thickness direction. As preferred, the plurality of clamping points are arranged on one end surface in the thickness direction of the first holding part 112, and are symmetrically distributed on both sides of the end surface, so that the connection between the first holding part 112 and the insulating shell 12 is more stable, and the stress is more uniform during assembly.
[0042] It can be understood that the first clamping structure 1121 and the second clamping structure 1122 can also be other structures that can be fixedly connected with the insulating shell 12, which are not described in detail herein. The anti-wear terminal 11 of the embodiment of the application is fixedly connected with the insulating shell 12 by interference in both the width direction and the thickness direction, so as to increase the holding force of the insulating shell 12 on the anti-wear terminal 11 and improve the stability.
[0043] Further, in some embodiments, the anti-wear terminal 11 further comprises a first soldering leg 113 arranged at an end of the first holding part 112 away from the first abutting part 111, and is used to be soldered with an external PCB. The first soldering leg 113 is arranged to be bent at an end portion close to the first holding part 112, and is connected to a middle portion of the first holding part 112, so that the end portion of the first holding part 112 connected to the first soldering leg 113 forms two exposed first supporting points 1123. During assembly, the anti-wear terminal 11 can be inserted into the insulating shell 12 by the stress of the first supporting points 1123. This arrangement can avoid the stress deformation of the first soldering leg 113, which may otherwise cause poor soldering and affect the stability of the connector.
[0044] Referring to Figures 1-7 The embodiment of the application also provides a female seat 10, which comprises the anti-wear terminal 11 and the insulating shell 12, and the anti-wear terminal 11 is fixedly inserted into the insulating shell 12.
[0045] Specifically, the insulating shell 12 is provided with a plurality of arrays of first terminal holes 121, and an inner wall of the first terminal hole 121 is provided with a first insertion slot 122 along the length direction thereof. The first holding part 112 is inserted into the first insertion slot 122, and the first clamping structure 1121 and the second clamping structure 1122 are fixedly connected with the inner wall of the first insertion slot 122 by interference, so as to fix the anti-wear terminal 11. At this time, the first abutting part 111 is bent towards the middle portion of the first terminal hole 121 to form an arc-shaped contact point. The first soldering leg 113 is arranged outside the first terminal hole 121 and is soldered with an external PCB.
[0046] Referring to Figures 1-7The application also provides a connector, which comprises a male seat 20 and a female seat 10. The male seat 20 comprises a male seat shell 22 and a male seat terminal 21 fixedly arranged in the male seat shell 22. The first abutting part 111 elastically abuts against the male seat terminal 21 in the state of the male seat 20 and the female seat 10 being oppositely arranged.
[0047] Further, in some embodiments, the insertion end of the male seat terminal 21 is provided with a guide part 211, which is bent towards the side away from the wear-resistant terminal 11 and is arranged in an arc shape. In this way, the guide part 211 can play a guiding function when the male seat 20 and the female seat 10 are oppositely arranged, effectively reducing the resistance of the opposite arrangement and avoiding the terminal from being pulled out.
[0048] Further, in some embodiments, the male seat shell 22 is provided with a second terminal hole 221, and an inner wall of the second terminal hole 221 is provided with a second insertion slot 222, and the male seat terminal 21 is arranged in the second insertion slot 222.
[0049] Further, the male seat terminal 21 is also provided with a second holding part 213, which is provided with a clamping structure for interference connection with the second insertion slot 222, so as to increase the holding force of the male seat shell 22 on the male seat terminal 21 and avoid the male seat terminal 21 from being pulled out due to the plugging and unplugging. It can be understood that the clamping structure of the second holding part 213 can be the same as the first clamping structure 1121 or the second clamping structure 1122, or can be a combination of the first clamping structure 1121 and the second clamping structure 1122, which will not be described in detail here.
[0050] Further, in some embodiments, the guide part 211 is bent towards the middle part of the second terminal hole 221 and completely immersed in the inside of the second terminal hole 221. In this way, the male seat terminal 21 can be prevented from being bent and deformed due to the contact of the female seat 10 during the plugging process, so as to affect the connection performance of the male seat terminal 21 and the wear-resistant terminal 11.
[0051] Further, in some embodiments, the male seat terminal 21 further comprises a second abutting part 212 arranged between the guide part 211 and the second holding part 213. As an option, the second abutting part 212 is in a planar sheet shape, and the second abutting part 212 is guided to any one of the first abutting surface 1111, the second abutting surface 1112 or the third abutting surface 1113 in the state of the male seat 20 and the female seat 10 being oppositely arranged, so as to more stably connect with the wear-resistant terminal 11 and improve the contact stability of the connector.
[0052] Further, in some embodiments, the male seat terminal 21 further comprises a second soldering leg 214 connected to the second holding portion 213 away from one end of the second abutting portion 212, for welding with an external PCB. The second soldering leg 214 is bent near one end of the second holding portion 213 and connected to the middle of the second holding portion 213, so that the end of the second holding portion 213 connected to the second soldering leg 214 forms two exposed second support points 2131. During assembly, the male seat terminal 21 can be inserted into the male seat shell 22 by force through the second support points 2131. This arrangement can avoid deformation of the second soldering leg 214 due to stress, which can affect the stability of the connector.
[0053] Compared with the prior art, the beneficial effects of the embodiments of the present application are:
[0054] (1) The anti-wear terminal provided by the embodiments of the present application can reduce the frictional resistance of plugging by arranging the arc-shaped second abutting surface and third abutting surface on both sides of the first abutting surface, which is conducive to plugging. Moreover, the contact area of the two terminals to be plugged is increased, the contact resistance is reduced, the contact reliability is improved, and the stability and reliability of plugging and contact can be ensured.
[0055] (2) By arranging the first clamping structure in the width direction and the second clamping structure in the thickness direction, the holding force of the insulating shell on the anti-wear terminal is increased from both the width and thickness directions, and the stability of the female seat is improved.
[0056] (3) By arranging the exposed support points, the stress deformation of the soldering leg during assembly can be avoided, which can affect the stability of the connector.
[0057] (4) By arranging the arc-shaped guide portion at the insertion end of the male seat terminal, the guide function is achieved when plugging with the female seat, which can effectively reduce the plugging resistance and avoid the problem of terminal PIN withdrawal.
[0058] (5) By immersing the guide portion into the second terminal hole, the bending deformation of the male seat terminal caused by the contact of the female seat during plugging can be effectively avoided.
[0059] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, and the present application also intends to include these changes and modifications.
Claims
1. A wear-resistant terminal, fixedly inserted into a terminal hole in an insulating housing, characterized in that, Comprising: a first holding portion for clamping with a terminal hole position; a first abutting portion connected to the first holding portion; the first abutting portion is bent towards one side, and is provided with a first abutting surface along the length direction, and second and third abutting surfaces on both sides of the first abutting surface; the second and third abutting surfaces are convex arc surfaces.
2. The anti-wear terminal according to claim 1, characterized in that: the projection width of the second abutting surface and the third abutting surface on the first abutting surface is smaller than the width of the first abutting surface.
3. The anti-wear terminal according to claim 1, characterized in that: the first holding portion is provided with a first clamping structure, and the first clamping structure includes a plurality of protruding barbs provided on the first holding portion in the width direction, for interference fixing with the insulating shell.
4. The anti-wear terminal according to claim 3, characterized in that: the first holding portion is further provided with a second clamping structure, and the second clamping structure includes a plurality of protruding clamping points provided on the first holding portion in the thickness direction.
5. A wear resistant terminal according to claim 1, wherein Further comprising: a first soldering leg provided on the first holding portion away from the first abutting portion; the first soldering leg is bent near the end of the first holding portion, and is connected to the middle part of the first holding portion.
6. A female seat, characterized in that, Comprising: the anti-wear terminal according to any one of claims 1-5.
7. A connector characterized by comprising: Comprising: a male seat and a female seat according to claim 6; the male seat is provided with a male seat shell and a male seat terminal, and the male seat terminal is fixedly inserted into the male seat shell; in the plugged state of the male seat and the female seat, the first abutting portion elastically abuts against the male seat terminal.
8. The connector according to claim 7, characterized in that: the insertion end of the male seat terminal is provided with a guide-in portion, and the guide-in portion is an arc-shaped portion bent towards the side away from the anti-wear terminal.
9. The connector according to claim 8, characterized in that: the male seat shell is provided with a second terminal hole, and an inner wall of the second terminal hole is provided with a second insertion slot, and the male seat terminal is inserted into the second insertion slot; the guide-in portion is bent towards the middle part of the second terminal hole, and is completely immersed in the inside of the second terminal hole.
10. The connector according to claim 9, characterized in that: the male seat terminal further includes a second abutting portion connected to the guide-in portion, and the second abutting portion is a planar sheet; in the plugged state of the male seat and the female seat, the second abutting portion guides the first abutting surface, the second abutting surface or the third abutting surface.