A connector pin with a solderless, direct-insertion mounting structure for the pin body and terminal cage.

Abstract

This invention discloses a connector with a solderless, direct-insertion mounting structure for the pin body and terminal cage, comprising: a terminal cage, a wire clamping spring, and a pin body; one end of the terminal cage has a cable insertion port, and the other end has a pin body insertion port, with the cable insertion port and pin body insertion port arranged opposite to each other; the wire clamping spring is placed inside the terminal cage and has an elastic locking part and an elastic wire clamping part; the elastic locking part can abut against one inner wall of the terminal cage; a guide plate on the pin body is directly inserted into the terminal cage through the pin body insertion port and locked in place by the elastic locking part; the elastic wire clamping part can abut against the other inner wall of the terminal cage; the cable is inserted into the terminal cage through the cable insertion port and locked in place by the elastic wire clamping part. This invention, with its mounting structure where the guide plate of the pin body is installed inside the terminal cage, not only achieves solderless, rapid assembly of the two components but also does not increase the external volume of the terminal cage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connector, more particularly to a plug-in connector with a needle body and a terminal cage without welding. BACKGROUND

[0002] The plug-in connector is a joint for connecting or disconnecting cables and electrical appliances, which includes a plurality of plug-in connectors composed of a needle body and a terminal cage. The cable and the needle body are connected through the terminal cage fixed on the needle body by a flow guide, and the needle body and the terminal cage are connected to the electrical appliance. For example, the prior art with the publication number CN209592328U and the name of a terminal cage, a plug-in connector and a plug-in connector are disclosed. The plug-in connector includes a needle body and a terminal cage. The needle body is fixed (usually by welding) on the back side of the terminal cage through a plate-shaped flow guide, that is, the flow guide is integrated on the outer side of the terminal cage, and the two form a whole and are installed into a circular connector.

[0003] However, the flow guide fixed on the outer side of the terminal cage increases the volume of the terminal cage, which reduces the volume of the cage that can be used in a circular connector with a certain volume, and ultimately reduces the area of the cable that can be connected to the terminal cage in the limited space of the circular connector, thereby reducing the current carrying capacity of the plug-in connector. In addition, the flow guide and the terminal cage are fixed by welding, which not only increases the production cost and the rate of defective products, but also cannot guarantee the flatness of the welding surface, thereby affecting the stability of the current conduction from the terminal cage to the flow guide. SUMMARY

[0004] Therefore, the present application provides a plug-in connector with a needle body and a terminal cage without welding, which can realize fast and welding-free installation of the needle body and the terminal cage, reduce the production cost of the plug-in connector assembly, and improve the yield, without increasing the volume of the terminal cage, thereby effectively solving the problem of the existing plug-in connector, in which the flow guide is fixed on the outer side of the terminal cage, increasing the volume of the terminal cage, reducing the volume of the cage that can be used in a circular connector with a certain volume, and ultimately reducing the area of the cable that can be connected to the terminal cage in the limited space of the circular connector, thereby reducing the current carrying capacity of the plug-in connector.

[0005] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0006] A plug-in connector with a needle body and a terminal cage without welding, comprising: a terminal cage, a wire pressing spring, a needle body;

[0007] One end of the terminal cage has a cable insertion port, and the other end of the terminal cage has a needle body insertion port, and the cable insertion port and the needle body insertion port are arranged opposite to each other;

[0008] The wire pressing spring is arranged in the terminal cage, the wire pressing spring is provided with an elastic clamping part and an elastic wire pressing part, the elastic clamping part can abut against the inner wall of one side of the terminal cage, the flow guide plate of the needle body is directly inserted into the terminal cage through the needle body insertion opening and is clamped and fixed with the elastic clamping part, and the elastic wire pressing part can abut against the inner wall of the other side of the terminal cage, the cable is inserted into the terminal cage through the cable insertion opening and is press-fitted with the elastic wire pressing part.

[0009] Compared with the prior art, the plug-in needle with the needle body and the terminal cage is provided by the technical scheme, the structure of the existing wire pressing spring is improved, the elastic clamping part is arranged on the wire pressing spring, the flow guide plate of the needle body is directly inserted into the terminal cage, and the flow guide plate is fixed in the terminal cage through the elastic clamping part.

[0010] Therefore, the mounting mode that the flow guide plate of the needle body is arranged in the terminal cage can realize quick and welding-free mounting of the needle body and the terminal cage, reduces the production cost of the plug-in needle and improves the yield, and does not increase the volume of the terminal cage, thereby effectively solving the problem that the existing plug-in needle is fixed on the outer side of the terminal cage, the volume of the terminal cage is increased, the volume of the cage that can be used in the circular connector is reduced, and finally the area of the wire cage that can be used for cable connection in the limited space of the circular connector is reduced, thereby reducing the current carrying capacity of the plug-in needle.

[0011] Further, the elastic clamping part is provided with an outer protruding clamping block protruding towards the inner wall of one side of the terminal cage, the flow guide plate is provided with a clamping hole, and the outer protruding clamping block can be clamped with the clamping hole.

[0012] The beneficial effect of the above technical scheme is that when the flow guide plate of the needle body is inserted into the terminal cage, the outer protruding clamping block can be clamped with the hole of the clamping hole when the clamping hole moves to the position of the outer protruding clamping block, at this time, the flow guide plate will not be pulled out of the terminal cage, thereby realizing quick and welding-free mounting of the needle body and the terminal cage.

[0013] Further, the elastic clamping part is provided with an outer protruding clamping block protruding towards the inner wall of one side of the terminal cage, the flow guide plate is provided with a clamping hole, and the outer protruding clamping block can be clamped with the clamping hole.

[0014] The beneficial effect of the above technical scheme is that the outer protruding clamping block is clamped with the flow guide plate, which can improve the stability of the direct insertion assembly of the needle body and the terminal cage, and avoid shaking of the needle body in the terminal cage.

[0015] Further, the elastic clamping part is provided with a process hole, and the outer protruding clamping block and the outer protruding clamping plate are integrally formed on two opposite hole walls of the process hole.

[0016] The beneficial effects produced by the above technical solutions are that the outer protruding clamping block and the outer protruding pressing plate are integrated on the hole edge of the process hole, which can facilitate the use of stamping process to manufacture the outer protruding clamping block and the outer protruding pressing plate, so that the processing technology is simple (that is, when processing, first stamp two long strip-shaped holes arranged at intervals on the elastic clamping part, then use the punch to break the plate surface between the two long strip-shaped holes, and then stamp the two broken plate surfaces respectively to form the outer protruding clamping block and the outer protruding pressing plate, at this time, the process hole is formed on the elastic clamping part). Therefore, the present application can manufacture two outer protruding clamping blocks and outer protruding pressing plates with different functions using a single plate, which not only saves materials, but also simplifies the processing technology.

[0017] Further, the outer protruding pressing plate is a V-shaped plate.

[0018] The beneficial effects produced by the above technical solutions are that the two side plate surfaces of the V-shaped plate are bent towards the inside of the process hole, that is, away from the side inner wall of the terminal cage, which will not interfere with the insertion of the flow guide plate, and the outer protruding surface of the V-shaped plate can be used to press and fix the flow guide plate.

[0019] Further, the pressing wire spring is provided with a clamping hole, and the side inner wall of the terminal cage is provided with a clamping protrusion, and the clamping hole and the clamping protrusion are clamped and fixed.

[0020] The beneficial effects produced by the above technical solutions are that the positioning and fixing of the pressing wire spring and the terminal cage can be achieved.

[0021] Further, the head end and the end of the flow guide plate are provided with guide slopes which facilitate the insertion of the flow guide plate into the needle body insertion opening.

[0022] The beneficial effects produced by the above technical solutions are that when the head of the flow guide plate is inserted into the needle body insertion opening, the guide slopes can play a certain guiding role, so that the flow guide plate can be more easily assembled into the terminal cage, improving the assembly efficiency.

[0023] Further, the elastic pressing wire part is provided with pressing parts on both sides.

[0024] The beneficial effects produced by the above technical solutions are that the elastic pressing wire part can be easily moved towards the elastic clamping part by the pressing parts, so that the elastic pressing wire part is separated from the other inner side wall of the terminal cage, and the cable is disconnected. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on the provided drawings without creative labor.

[0026] Figure 1 A first perspective view of a connector pin with a needle body and a terminal cage free-welding straight insertion mounting structure.

[0027] Figure 2 A second perspective view of a connector pin with a needle body and a terminal cage free-welding straight insertion mounting structure.

[0028] Figure 3 A Figure 2 An enlarged view of a partial A in the middle.

[0029] Figure 4 A third perspective view of a connector pin with a needle body and a terminal cage free-welding straight insertion mounting structure.

[0030] Figure 5 A Figure 4 A cross-sectional view of a cross section A-A in the middle.

[0031] Figure 6 An exploded structural view of a connector pin with a needle body and a terminal cage free-welding straight insertion mounting structure.

[0032] Figure 7 A Figure 6 An enlarged view of a partial B in the middle.

[0033] Figure 8 A structural view of an assembly of a terminal cage and a wire pressing spring.

[0034] Figure 9 A structural view of a wire pressing spring. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] As shown in Figures 1-9 The plug-in needle of the present application discloses a plug-in needle with a needle body and a terminal cage free from welding and a direct insertion type mounting structure, comprising: a terminal cage 1, a wire pressing spring 2, a needle body 3;

[0040] One end of the terminal cage 1 has a cable insertion port 101, and the other end of the terminal cage 1 has a needle body insertion port 102, and the cable insertion port 101 and the needle body insertion port 102 are arranged opposite to each other;

[0041] The wire pressing spring 2 is placed in the terminal cage 1, and the wire pressing spring 2 has an elastic clamping portion 21 and an elastic wire pressing portion 22, the elastic clamping portion 21 can abut against the inner wall of one side of the terminal cage 1, the flow guide plate 31 on the needle body 3 is directly inserted into the terminal cage 1 through the needle body insertion port 102 and clamped and fixed with the elastic clamping portion 21, and the elastic wire pressing portion 22 can abut against the inner wall of the other side of the terminal cage 1, and the cable wire is inserted into the terminal cage 1 through the cable insertion port 101 and is press-fitted with the elastic wire pressing portion 22.

[0042] In some embodiments, the elastic clamping portion 21 has an outward protruding clamping block 211 protruding towards the inner wall of one side of the terminal cage 1, and the flow guide plate 31 is provided with a clamping hole 311, and the outward protruding clamping block 211 can be clamped with the clamping hole 311.

[0043] In some embodiments, the elastic clamping part 21 has an outer convex crimping plate 212 protruding towards the inner wall of one side of the terminal cage 1, and the outer convex crimping plate 212 can be crimped with the plate surface of the flow guide plate 31.

[0044] In some embodiments, the elastic clamping part 21 is provided with a process hole 213, and the outer convex clamping block 211 and the outer convex crimping plate 212 are integrally formed on two opposite hole walls of the process hole 213.

[0045] In some embodiments, the outer convex crimping plate 212 is a V-shaped plate.

[0046] In some embodiments, the crimping spring 2 is provided with a clamping hole 201, and the inner wall of one side of the terminal cage 1 is provided with a clamping protrusion 103, and the clamping hole 201 is clamped and fixed with the clamping protrusion 103.

[0047] In some embodiments, the head end and the end of the flow guide plate 31 are provided with guide slopes 312 for facilitating the insertion of the flow guide plate 31 into the needle insertion port 102.

[0048] In some embodiments, the elastic crimping part 22 is provided with a pressing part 221 on both sides.

[0049] The present application improves the structure of the existing crimping spring, that is, an elastic clamping part is arranged on the crimping spring, the flow guide plate of the needle is directly inserted into the terminal cage, and the flow guide plate is fixed inside the terminal cage through the elastic clamping part. In this way, the needle and the terminal cage can be quickly and non-welding mounted in this way, thereby reducing the production cost of the connector needle assembly and improving the yield, and the volume of the terminal cage is not increased, thereby effectively solving the problem that the existing connector needle increases the volume of the terminal cage due to the fixing of the flow guide on the outer side of the terminal cage, which reduces the volume of the cage that can be used in the circular connector, and ultimately reduces the cable line area of the terminal cage in the limited space of the circular connector, thereby reducing the current carrying capacity of the connector needle.

[0050] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0051] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connector pin employing a solderless, direct-insertion mounting structure for the pin body and terminal cage, characterized in that, include: Terminal cage (1), wire clamping spring (2), pin body (3); One end of the terminal cage (1) has a cable insertion port (101), and the other end of the terminal cage (1) has a needle insertion port (102). The cable insertion port (101) and the needle insertion port (102) are arranged opposite to each other. The wire clamping spring (2) is placed inside the terminal cage (1). The wire clamping spring (2) has an elastic snap-fit ​​part (21) and an elastic wire clamping part (22). The elastic snap-fit ​​part (21) abuts against the inner wall of one side of the terminal cage (1). The guide plate (31) on the needle body (3) is inserted directly into the terminal cage (1) through the needle body insertion port (102) and is snapped and fixed with the elastic snap-fit ​​part (21). The elastic wire clamping part (22) abuts against the inner wall of the other side of the terminal cage (1). The cable is inserted into the terminal cage (1) through the cable insertion port (101) and is crimped and fixed with the elastic wire clamping part (22). The elastic snap-fit ​​part (21) has an outwardly protruding snap-fit ​​block (211) that protrudes toward the inner wall of one side of the terminal cage (1), and the guide plate (31) has a snap-fit ​​hole (311) and the outwardly protruding snap-fit ​​block (211) snaps into the snap-fit ​​hole (311). The elastic snap-fit ​​part (21) has an outwardly protruding pressing plate (212) that protrudes toward the inner wall of one side of the terminal cage (1), and the outwardly protruding pressing plate (212) is pressed against the surface of the guide plate (31).

2. The connector pin according to claim 1, employing a solderless direct-insertion mounting structure for the pin body and terminal cage, is characterized in that... The elastic snap-fit ​​part (21) has a process hole (213), and the protruding snap-fit ​​block (211) and the protruding pressing plate (212) are integrally formed on the two opposite hole walls of the process hole (213).

3. A connector pin with a solderless, direct-insertion mounting structure for the pin body and terminal cage according to claim 2, characterized in that, The externally protruding pressure plate (212) is a V-shaped plate.

4. A connector pin with a solderless, direct-insertion mounting structure for the pin body and terminal cage according to any one of claims 1-3, characterized in that, The pressure spring (2) has a locking hole (201), and the inner wall of one side of the terminal cage (1) has a locking protrusion (103). The locking hole (201) and the locking protrusion (103) are locked together.

5. A connector pin with a solderless, direct-insertion mounting structure for the pin body and terminal cage according to any one of claims 1-3, characterized in that, The guide plate (31) is provided with guide slopes (312) on both sides of the head end and the end end to facilitate the insertion of the guide plate (31) into the needle insertion port (102).

6. A connector pin with a solderless, direct-insertion mounting structure for the pin body and terminal cage according to any one of claims 1-3, characterized in that, The elastic pressure line portion (22) has pressing portions (221) on both sides.

Images