Connection module

Abstract

The utility model relates to the technical field of electric connectors and discloses a connecting module, which comprises an insulating shell with a first surface and a second surface, a first terminal and a second terminal, the first terminal and the second terminal respectively comprise a plugging end and a matching end, the plugging end of the first terminal is plugged into the insulating shell from the first surface, and the matching end of the first terminal is plugged into the insulating shell from the second surface. The inserting end of the second terminal is inserted into the insulating shell from the second surface; and the first terminal and the second terminal are respectively provided with a first welding end and a second welding end which are used for being welded with a PCB (Printed Circuit Board). According to the connection module, the first terminal and the second terminal are installed on the first surface and the second surface respectively, so that the first terminal can be in butt joint fit with the butt joint male terminal, the second terminal can be in butt joint fit with the butt joint female terminal, and modularization is facilitated; the connection stability among the first terminal, the insulating shell and the PCB and the connection stability among the second terminal, the insulating shell and the PCB are improved through the first welding end and the second welding end.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, and particularly relates to a connection module. Background Art

[0002] The modular connector is a highly integrated electrical connector. It adopts a modular design and is composed of multiple standardized connection modules, such as signal modules, power modules, filters, protection modules, etc. These modules can be combined according to specific application requirements to provide flexible connection solutions. Due to its high reliability, maintainability, and scalability, the modular connector has been widely used in fields such as electronic devices and communication systems.

[0003] As an important part of the modular connector, the connection module is mainly responsible for realizing the electrical connection and mechanical connection between different modules. They usually adopt a plug-and-play connection method and are positioned and fixed through designs such as size standardization and positioning devices. This connection method has the characteristics of simple operation and reliable connection, and can ensure the stable connection between modules.

[0004] In order to establish a signal connection with other connection modules, the existing connection module usually installs male terminals and female terminals on the insulating housing at the same time, and realizes conduction through the docking between the docking male terminals and docking female terminals on other connection modules. However, the electrical signal connection with the PCB board is only established with one of the terminals, and for the other terminal, the overall electrical connection is realized through the conduction between the docking terminals. Usually, the connection between the terminal and the insulating housing is a simple plug-in connection. However, the terminal connected to the PCB board is only simply inserted into the insulating housing, resulting in an unstable connection of this terminal. Moreover, both ends of one of the terminals need to be inserted into the insulating housing and the docking terminal, and there is no other structure to maintain stability, resulting in poor stability of one of the terminals after the connection module is connected to the PCB board and being prone to loosening, which may cause malfunctions. Summary of the Utility Model

[0005] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: to provide a connection module to solve the problem of poor stability of the terminal after the connection module is connected to the PCB board.

[0006] To solve the above technical problems, a technical solution adopted by the present utility model is: to provide an insulating housing having a relative first surface and a second surface, a first terminal and a second terminal. The first terminal and the second terminal both include a connection end inserted into the insulating housing and a mating end respectively inserted and mated with an adjacent docking terminal. The connection end of the first terminal is inserted into the insulating housing from the first surface, and the connection end of the second terminal is inserted into the insulating housing from the second surface, so that the mating end of the first terminal can be mated with a docking male terminal and the mating end of the second terminal can be mated with a docking female terminal. The first terminal and the second terminal respectively have a first welding end and a second welding end bent and extended outside the second surface, so that after the first terminal and the second terminal are respectively mated with the corresponding docking terminals for conduction, the first welding end and the second welding end are welded to the PCB board while ensuring the connection of the first terminal and the second terminal, thereby increasing the cooperation with the insulating housing and overall enhancing the stability among the first terminal, the second terminal and the insulating housing, and at the same time enhancing the stability among the first terminal, the second terminal and the PCB board.

[0007] Further, the insulating housing includes a first insertion cavity opened on the first surface and a second insertion cavity opened on the second surface. The mating end of the first terminal is defined as a first mating end and protrudes from the first surface of the insulating housing. The connection end of the first terminal is defined as a first insertion end and is inserted into the first insertion cavity. The mating end of the second terminal is defined as a second mating end, and the second mating end protrudes from the second surface of the insulating housing. The connection end of the second terminal is defined as a second insertion end and is inserted into the second insertion cavity. A plurality of the connection modules can be connected in series, that is, the second mating end of the first connection module is inserted into the first mating end of the second connection module in the transverse direction to install the first terminal and the second terminal on the insulating housing from different directions, ensuring the connection between the first terminal, the second terminal and the insulating housing.

[0008] Further, the first insertion end includes a base portion distributed along the insertion direction and connection portions bent and extended in the same direction along the thickness direction of the base portion from both opposite sides of the base portion. The first insertion cavity is adapted to be opened for the base portion and the connection portions to be U-shaped, so that the first terminal can be connected to the insulating housing and the freedom degrees of the first terminal in the width and thickness directions are restricted. Through grooves opened towards the second surface side are respectively provided on both connection portions along the width direction of the base portion, and clamping protrusions that are clamped in the through grooves when the first insertion end is inserted into the first insertion cavity are respectively protruded in the insertion direction at positions of the first insertion cavity opposite to the through grooves, so as to further enhance the connection stability between the first terminal and the insulating housing and prevent the first terminal from easily disengaging from the first insertion cavity.

[0009] Further, first barbs protrude toward each other on both sides of the door groove, and a first avoidance space for the deformation of the first barbs is formed on the door groove from the side of the first barbs, so that while the clamping convex part can penetrate into the door groove, the first barbs are squeezed to abut against the clamping convex part.

[0010] Further, the first mating end includes extension parts extending along the insertion direction from the side of the two connecting parts away from the second surface and clip parts connected to the extension parts. The ends of the two extension parts away from the connecting parts are arranged obliquely toward each other. Convex bumps for abutting against the mating male terminal are protruded on the two clip parts toward each other, so as to facilitate clamping the mating male terminal to achieve conduction; on the first surface of the insulating housing, retaining parts are protruded along the insertion direction on both sides corresponding to the connecting parts of the first insertion cavity. A protection cavity for the first insertion end to pass through is formed by enclosing between the two retaining parts. The extension parts and the clip parts are both located in the protection cavity to protect the first mating end.

[0011] Further, a through cavity is formed between the two retaining parts and penetrates in the thickness direction and the insertion direction of the base. A first accommodation groove communicating with the through cavity in the thickness direction of the base is recessed on the first surface of the insulating housing. An insertion hole penetrating the second surface of the insulating housing is formed on the side of the first accommodation groove away from the through cavity along the insertion direction; the first welding end includes a first extension section extending from the base, a first bending section bent from the first extension section toward the side away from the extension part, a second extension section extending from the first bending section along the thickness direction of the base and for penetrating into the through cavity and the first accommodation groove, a second bending section bent from the second extension section, a third extension section extending from the second bending section along the insertion direction and in the same direction as the base and for penetrating into the insertion hole, and a first welding section extending from the third extension section along the insertion direction and for welding with the PCB board. A convex part for abutting against the inner wall of the insertion hole is protruded on the third extension section to increase the contact area and stability between the first welding end of the first terminal and the insulating housing, and at the same time restrict the freedom degrees of the first welding end in the width and thickness directions.

[0012] Further, a connecting surface for attaching to the PCB board is recessed along the insertion direction from the periphery of the second insertion cavity on the insulating housing. The insertion hole penetrates the connecting surface. The first welding section extends from the insertion hole to the outside of the connecting surface, so as to facilitate improving the connection stability between the insulating housing and the PCB board and ensuring the connection stability between the entire connection module and the PCB board. Positioning columns are protruded on the connecting surface along the insertion direction to facilitate quick alignment.

[0013] Further, a third insertion cavity penetrating the first surface along the insertion direction is provided on the insulating housing. The third insertion cavity has an insertion opening with a width smaller than that of the third insertion cavity and penetrating the connection surface. A fixing portion tightly fitted therein is provided in the third insertion cavity. The fixing portion has a second welding section passing through the insertion opening and used for welding with the PCB board, so as to facilitate welding with the PCB board and pull the PCB board after being connected to the PCB board to prevent it from falling off.

[0014] Further, the second insertion end is formed by extending from the second fitting end along the insertion direction. Second barbs for tightly abutting against the inner wall of the second insertion cavity are convexly provided on both sides of the second insertion end. A second avoidance space for the deformation of the second barbs is provided on the side of the second barbs, so that the second insertion end is clamped in the second insertion cavity, thereby restricting the degrees of freedom of the second terminal and the insulating housing in the width and thickness directions.

[0015] Further, a second accommodation groove communicating with the second insertion cavity is recessed on the second surface of the insulating housing. A connection side surface is provided between the second surface of the insulating housing and the connection surface. A third accommodation groove communicating with the second accommodation groove and penetrating the connection side surface along the thickness direction of the base is provided on the connection side surface. A fourth accommodation groove penetrating the connection surface and communicating with the third accommodation groove is provided on the insulating housing. The fourth accommodation groove is misaligned with the insertion hole along the thickness direction of the base; the second welding end includes a fourth extension section extending from the second fitting end along the thickness direction of the base and used for penetrating into the second accommodation groove, a third bending section bent from the fourth extension section, a fifth extension section extending from the third bending section and used for penetrating into the second accommodation groove, a fourth bending section bent from the fifth extension section, a sixth extension section extending from the fourth bending section along the insertion direction and in the same direction as the second insertion end and used for being inserted into the third accommodation groove, a fifth bending section bent from the sixth extension section, a seventh extension section extending from the fifth bending section along the thickness direction of the base and used for being inserted into the fourth accommodation groove, a sixth bending section bent from the seventh extension section, and a third welding section extending from the sixth bending section along the insertion direction and in the same direction as the sixth extension section and used for welding with the PCB board, so as to increase the connection stability between the second terminal and the PCB board, and at the same time enable the first welding section and the second welding section to be connected in a staggered manner, ensuring uniform distribution of the force.

[0016] The connection module of the present utility model has at least the following beneficial effects: Through the cooperation among the first terminal, the second terminal and the insulating housing, the first terminal and the second terminal are respectively installed on the first surface and the second surface of the insulating housing, so that the mating end of the first terminal can be mated with the mating male terminal, and the mating end of the second terminal can be mated with the mating female terminal, for modularization; By adding a first welding end to the first terminal and a second welding end to the second terminal, so that both the first terminal and the second terminal can be connected to the insulating housing and also welded to the PCB board, the connection stability among the first terminal, the insulating housing and the PCB board and the connection stability among the second terminal, the insulating housing and the PCB board are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the connection module of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the connection module of the present utility model from another angle;

[0020] Figure 3 is a side cross-sectional view of the connection module of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the insulating housing of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the insulating housing of the present utility model from another angle;

[0023] Figure 6 is a side cross-sectional view of the insulating housing of the present utility model;

[0024] Figure 7 is a schematic structural diagram of the first terminal and the second terminal of the present utility model;

[0025] Figure 8 is a schematic structural diagram of the fastening part of the present utility model.

[0026] The meanings of the reference numerals in the drawings are as follows:

[0027] Insulating housing - 1; First surface - 11; Second surface - 12; First insertion cavity - 13; Second insertion cavity - 14; Enclosure part - 15; Through - hole cavity - 151; First accommodation groove - 161; Insertion hole - 162; Connection surface 163; Second accommodation groove - 164; Connection side - 165; Third accommodation groove - 166; Fourth accommodation groove - 167; Positioning post - 17; Third insertion cavity - 18; Pull - fixing part - 19; Third barb - 191; Second welding section - 192; Insertion port - 193; First terminal - 2; First insertion end - 21; Base - 211; Connection part - 212; Door groove - 213; First barb - 214; First mating end - 22; Extension part - 221; Clip part - 222; Convex bulge - 223; First welding end - 23; First extension section - 231; First bending section - 232; Second extension section - 233; Second bending section - 234; Third extension section - 235; First welding section - 236; Convex part - 237; Second terminal - 3; Second insertion end - 31; Second barb - 311; Second mating end - 32; Second welding end - 33; Fourth extension section - 331; Third bending section - 332; Fifth extension section - 333; Fourth bending section - 334; Sixth extension section - 335; Fifth bending section - 336; Seventh extension section - 337; Sixth bending section - 338; Third welding section - 339. Detailed implementation mode

[0028] The present utility model will be further described below with reference to the accompanying drawings.

[0029] As Figures 1 to 8 shown, the connection module of the present utility model includes an insulating housing 1 having opposite first surface 11 and second surface 12, a first terminal 2 made of a metal conductive material, and a second terminal 3 made of a metal wire material. The first terminal 2 is inserted into the insulating housing 1 from the first surface 11, and the second terminal 3 is inserted into the insulating housing 1 from the second surface 12. The first terminal 2 is a female terminal and cooperates with the mating male terminal to conduct electricity, and the second terminal 3 is a male terminal and cooperates with the mating female terminal to conduct electricity, so that the connection module can cooperate with other connectors to achieve modularization.

[0030] As Figures 1 to 6As shown, in this embodiment, the insulating housing 1 is made of plastic. Along an insertion direction on the insulating housing 1, a first insertion cavity 13 is formed by opening through the first surface 11 from the first surface 11 of the insulating housing 1, and a second insertion cavity 14 is formed by opening through the second surface 12 from the second surface 12 of the insulating housing 1. The first terminal 2 is inserted into the first insertion cavity 13, and the second terminal 3 is inserted into the second insertion cavity 14, so that the first terminal 2 and the second terminal 3 are installed on the insulating housing 1 in different orientations, thereby being able to cooperate with the docking terminals on the adjacent module. Among the contents defined in this embodiment, on the first surface 11 of the insulating housing 1, retaining portions 15 are protrudingly formed along the insertion direction on both sides opposite to the first insertion cavity 13. A protective cavity capable of allowing the first terminal 2 to pass through is formed by enclosing between the two retaining portions 15. The first terminal 2 is inserted into the first insertion cavity 13 through the protective cavity, and the retaining portion 15 can protect and support the portion of the first terminal 2 for cooperating with the docking terminal. The retaining portions 15 are respectively arranged on both sides of the first insertion cavity 13 along a width direction, and one side surface of each retaining portion 15 facing the first insertion cavity 13 is flush with the first insertion cavity 13, so as to facilitate the insertion of the first terminal 2 therein. Each retaining portion 15 has a sheet-like structure and is parallel and spaced apart. Among them, on one side surface of two adjacent retaining portions 15 facing each other, edges are protrudingly formed inward on both sides in the thickness direction, and the edges, as a part of the retaining portion 15, jointly enclose the protective cavity. In this embodiment, there is a through cavity 151 between two adjacent retaining portions 15. The through cavity 151 penetrates along the thickness direction and penetrates toward the side away from the insulating housing 1 along the insertion direction. On the first surface 11 of the insulating housing 1, a first accommodation groove 161 communicating with the through cavity 151 along the thickness direction is recessed. The first accommodation groove 161 is collinear with the protective cavity. On the inner wall of the first accommodation groove 161 away from the through cavity 151 and close to the second surface 12, an insertion hole 162 penetrating the second surface 12 of the insulating housing 1 is opened along the insertion direction.

[0031] In the content defined in this embodiment, along the insertion direction, a connection surface 163 for attaching to the PCB board is recessed from the periphery of the second insertion cavity 14 on the insulating housing 1, so that the insulating housing 1 has a total of three parts, which sequentially include a protective part composed of the enclosing part 15, an intermediate part with a first surface 11 and a connection surface 163, and a bottom part whose width and length are correspondingly smaller than those of the intermediate part. The first insertion cavity 13 and the second insertion cavity 14 are formed on the intermediate part and the bottom part. The second surface 12 is a side surface of the bottom part away from the intermediate part. The insertion hole 162 penetrates the connection surface 163. Preferably, positioning posts 17 protrude along the insertion direction on the connection surface 163. The positioning posts 17 can be set to two and are respectively arranged on both sides of the bottom part to facilitate positioning and cooperation with the PCB board. Preferably, a third insertion cavity 18 penetrating the first surface 11 along the insertion direction is provided on the insulating housing 1. The third insertion cavity 18 is located on the intermediate part and can be set to four. The four third insertion cavities 18 are respectively arranged on both sides of the positioning posts 17 in a rectangular array. To avoid the positioning posts 17 and the third insertion cavity 18 affecting the setting of the first accommodation groove 161, the positioning posts 17 and the third insertion cavity 18 are respectively arranged on both sides of the protective part along the width direction. Among them, the third insertion cavity 18 has an insertion opening 193 with a width smaller than that of the third insertion cavity 18 and penetrating the connection surface 163 to form a T shape as a whole. A fastening part 19 tightly fitted in the third insertion cavity 18 is provided in the third insertion cavity 18. The fastening part 19 is installed in the third insertion cavity 18 by insertion. The fastening part 19 can be movably inserted into the third insertion cavity 18. Third barbs 191 protrude on the opposite sides of the fastening part 19, and a third avoidance groove is recessed on the side of the extension of the third barb 191, so that the third barb can deform towards the third avoidance groove side when being squeezed. The fastening part 19 is clamped in the third insertion cavity 18 through the third barbs 191. A second welding section 192 passing through the insertion opening 193 and used for welding with the PCB board is provided on the side of the fastening part 19 facing the second surface 12. When the PCB board is connected to the insulating housing 1, the bottom part passes through the PCB board, the PCB board is attached to the connection surface 163 and connected to the intermediate part, the positioning posts 17 are inserted into the corresponding positioning holes on the PCB board, and the third welding plate is welded to the PCB board, so that the fastening part 19 can hold the PCB board to prevent the PCB board from detaching from the insulating housing 1.

[0032] In this embodiment, a second receiving groove 164 communicating with the second insertion cavity 14 is recessed in the second surface 12 of the insulating housing 1. The second receiving groove 164 has a first section, a second section, and a third section. The first section communicates with the second insertion cavity 14 along the thickness direction and is collinear with it. The second section extends along the width direction from one end of the first section away from the second insertion cavity 14. The third section extends along the thickness direction from one end of the second section away from the first section toward the side away from the second insertion cavity 14. There is a connecting side surface 165 between the second surface 12 of the insulating housing 1 and the connecting surface 163, that is, the outer wall of the bottom part is defined as the connecting side surface 165. A third receiving groove 166 communicating with the second receiving groove 164 and penetrating the connecting side surface 165 along the thickness direction is formed on the connecting side surface 165. The third receiving groove 166 is distributed along the insertion direction to communicate with the third section of the second receiving groove 164. A fourth receiving groove 167 penetrating the connecting surface 163 and communicating with the third receiving groove 166 is formed in the middle part of the insulating housing 1. The fourth receiving groove 167 is arranged parallel to the first receiving groove 161. The fourth receiving groove 167 is misaligned with the insertion hole 162 along the thickness direction. Among them, the fourth receiving groove 167 is closer to the second insertion cavity 14 than the insertion hole 162, and the insertion hole 162 is located on the side away from the second insertion cavity 14 relative to the fourth receiving groove 167.

[0033] As Figures 1 to 3 and Figure 7 shown, in this embodiment, both the first terminal 2 and the second terminal 3 have a connection end inserted on the insulating housing 1 and a mating end respectively inserted and mated with adjacent mating terminals. The connection end of the first terminal 2 is inserted into the first insertion cavity 13 of the insulating housing 1 from the first surface 11, and the connection end of the second terminal 3 is inserted into the second insertion cavity 14 of the insulating housing 1 from the second surface 12.

[0034] In this embodiment, the first terminal 2 includes an integrally formed first insertion end 21, a first mating end 22 connected to the first insertion end 21, and a first welding end 23 connected to the first insertion end 21 and bent and extended outside the second surface 12. Among them, the first insertion end 21 is the connection end of the first terminal 2, the first mating end 22 is the mating end of the first terminal 2. The first insertion end 21 is used to be inserted into the first insertion cavity 13, the first mating end 22 is used to cooperate with the mating male terminal, and the first welding end 23 is used to be welded to the PCB board, so as to realize the connection between the first terminal 2, the insulating housing 1, the mating male terminal, and the PCB board. In this embodiment, the first mating end 22 protrudes from the first surface 11 of the insulating housing 1.

[0035] Among the contents defined in this embodiment, the first plug end 21 includes a base portion 211 distributed along the plugging direction and connecting portions 212 formed by bending and extending in the same direction along the thickness direction of the base portion 211 from opposite sides of the base portion 211. The base portion 211 has a rectangular strip structure. The two connecting portions 212 are respectively bent and stamped from the two long sides of the base portion 211 to form a U shape as a whole. The first plugging cavity 13 is adapted to be opened for the base portion 211 and the connecting portions 212 to also form a U shape, so that the first plug end 21 can be plugged therein. Gate grooves 213 are respectively formed through the two connecting portions 212 in the width direction and are open to the second surface 12. For this purpose, at positions of the first plugging cavity 13 corresponding to the two gate grooves 213, clamping protrusions 237 (not shown in the figure) that are clamped in the gate grooves 213 when the first plug end 21 is plugged into the first plugging cavity 13 are respectively protruded along the plugging direction, so that the connecting portions 212 are erected on the clamping protrusions 237, and the movement of the first plug end 21 is restricted through the cooperation of the clamping protrusions 237 and the gate grooves 213. First barbs 214 protrude from both sides of the gate groove 213 in opposite directions, and a first avoidance space for the deformation of the first barb 214 is formed on the gate groove 213 from the side of the first barb 214, so that the first barb 214 can abut against the clamping protrusion 237 after being squeezed by the clamping protrusion 237, thereby making the connection between the first plug end 21 and the insulating housing 1 firmer.

[0036] Among the contents defined in this embodiment, the first mating end 22 includes extension portions 221 formed by extending along the plugging direction from the sides of the two connecting portions 212 away from the second surface 12 and clip portions 222 connected to the extension portions 221. The ends of the two extension portions 221 away from the connecting portions 212 are arranged obliquely towards each other to gradually converge, thereby reducing the distance between the two clip portions 222. Convex bumps 223 for abutting against the docking terminals are respectively protruded from the two clip portions 222 by stamping. The surface of the convex bump 223 is streamlined, so that the mating male terminal can be squeezed into the space between the two convex bumps 223 by squeezing the convex bump 223, and then the clip portion 222 and the mating male terminal are clamped by the elastic force of the extension portion 221. The enclosing portion 15 is arranged outside the two sides of the extension portion 221 and the clip portion 222. During installation, the first plug end 21 is passed through the protection cavity and then the first plug end 21 is plugged into the first plugging cavity 13, and the extension portion 221 and the clip portion 222 are located in the protection cavity at this time.

[0037] In the content defined by this embodiment, the first welding end 23 includes a first extension segment 231 extending from the base 211 toward the side away from the second surface 12, a first bending segment 232 bent from the first extension segment 231 toward the side away from the extension portion 221, a second extension segment 233 extending from the first bending segment 232 in the thickness direction toward the side away from the base 211 and for passing through the through cavity 151 and the first accommodation groove 161, a second bending segment 234 bent from the second extension segment 233 toward the second surface 12, a third extension segment 235 extending from the second bending segment 234 in the insertion direction and in the same direction as the base 211 and for penetrating into the insertion hole 162, and a first welding segment 236 extending from the third extension segment 235 in the insertion direction and for welding with the PCB board. A convex portion 237 for pressing against the inner wall of the insertion hole 162 is protruded on the third extension segment 235.

[0038] During use, after the first insertion end 21 is installed in the first insertion cavity 13 and the first mating end 22 is located in the protection cavity, the first extension segment 231 is located in the first insertion cavity 13, the second bending segment 234 is located in the through cavity 151 and at the junction of the first insertion cavity 13 and the first accommodation groove 161, the second extension segment 233 passes through and fits in the first accommodation groove 161, the second bending segment 234 is located at the junction of the first accommodation groove 161 and the insertion hole 162, the third extension segment 235 penetrates into the insertion hole 162 in the insertion direction, and the first extension segment 231 extends out of the connection surface 163 and is welded and mated with the PCB board after the PCB board is attached to the connection surface 163, realizing the electrical signal connection between the first terminal 2 and the PCB board. At the same time, the first welding end 23 can increase the contact area and the support area between the first terminal 2 and the insulating housing 1, making the connection between the first terminal 2 and the insulating housing 1 more stable.

[0039] In this embodiment, the second terminal 3 includes an integrally formed second insertion end 31, a second mating end 32 connected to the second insertion end 31, and a second welding end 33 connected to the second insertion end 31 and bent and extending outside the second surface 12. Among them, the second insertion end 31 is the connection end of the second terminal 3, the second mating end 32 is the mating end of the second terminal 3, the second insertion end 31 is used for insertion into the second insertion cavity 14, the second mating end 32 is used for mating with the docking female terminal, and the second welding end 33 is used for welding with the PCB board, thereby realizing the connection between the second terminal 3, the insulating housing 1, the docking female terminal, and the PCB board. In this embodiment, the second mating end 32 protrudes from the second surface 12 of the insulating housing 1, and multiple connection modules can be connected in series, that is, the second mating end 32 of the first connection module is inserted into the first mating end 22 of the second connection module in the horizontal direction, and one of the first connection module and the second connection module is defined as the docking connection module.

[0040] In the content defined in this embodiment, the second plugging end 31 extends along the plugging direction to form a rectangular block structure, and the second plugging cavity 14 is adapted thereto and also has a rectangular block structure. Second barbs 311 for abutting against the inner wall of the second plugging cavity 14 are protruded on both sides of the second plugging end 31, and a second avoidance space for the deformation of the second barbs 311 is provided on the side of the second barbs 311, so that when the second plugging end 31 is plugged into the second plugging cavity 14, the second barbs 311 can abut against the inner wall of the second plugging cavity 14, thereby realizing the connection between the second terminal 3 and the insulating housing 1. The second mating end 32 has a square sheet structure, and one end of the second plugging end 31 far from the first surface 11 is integrally connected to the second mating end 32, and the second mating end 32 is used to cooperate with the convex package 223 on the butt-jointed female terminal.

[0041] In the content defined in this embodiment, the second welding end 33 includes a fourth extension segment 331 extending along the thickness direction from the second mating end 32 for penetrating into the second accommodation groove 164, a third bending segment 332 bent from the fourth extension segment 331, a fifth extension segment 333 extending from the third bending segment 332 for continuously penetrating into the second accommodation groove 164, a fourth bending segment 334 bent from the fifth extension segment 333, a sixth extension segment 335 extending from the fourth bending segment 334 along the plugging direction and in the same direction as the second plugging end 31 for penetrating into the third accommodation groove 166, a fifth bending segment 336 bent from the sixth extension segment 335, a seventh extension segment 337 extending from the fifth bending segment 336 along the thickness direction and toward the side close to the plugging hole 162 for penetrating into the fourth accommodation groove 167, a sixth bending segment 338 bent from the seventh extension segment 337, and a third welding segment 339 extending from the sixth bending segment 338 along the plugging direction and in the same direction as the sixth extension segment 335 for welding with the PCB board.

[0042] During use, after inserting the second plugging end 31 into the second plugging cavity 14, the second mating end 32 is located outside the second surface 12. The fourth extension segment 331 penetrates into the first segment of the second accommodating groove 164. The third bending segment 332 is located at the junction of the first segment and the second segment. The fifth extension segment 333 is located within the second segment. The fourth bending segment 334 is located at the junction of the second segment and the third segment. One end of the sixth extension segment 335 penetrates into the third segment, and the other end of the sixth extension segment 335 penetrates into the third accommodating groove 166 and fits against the inner wall of the third accommodating groove 166. The fifth bending segment 336 is located at the junction of the third accommodating groove 166 and the fourth accommodating groove 167. The seventh extension segment 337 penetrates through the fourth accommodating groove 167, and convex segments for abutting against the seventh extension segment 337 are convexly provided on the two inner walls of the fourth accommodating groove 167 in an opposite direction to limit the seventh extension segment 337. The sixth bending segment 338 faces the side close to the plugging hole 162. The third welding segment 339 penetrates out of the fourth accommodating groove 167 and out of the connection surface 163 and is parallel and offset from the first welding segment 236, so that the third welding segment 339 can be welded to the PCB board after the PCB board is installed on the insulating housing 1. At the same time, the cooperation between the second accommodating groove 164, the third accommodating groove 166, the fourth accommodating groove 167 and the second welding end 33 increases the contact area and support area between the second welding end 33 and the insulating housing 1, improves the stability and firmness between the second terminal 3 and the insulating housing 1 while restricting the second welding end 33, and simultaneously improves the connection stability between the second terminal 3 and the PCB board.

[0043] It should be noted that the plugging direction described in the present utility model refers to the length direction of the base 211, the thickness direction described in the present utility model refers to the thickness direction of the base 211, and the width direction described in the present utility model refers to the width direction of the base 211.

[0044] The working mode of one embodiment of the connection module of the present utility model is as follows: During assembly, align the PCB board with the connection surface 163, and after enabling the first welding segment 236, the second welding segment 192 and the third welding segment 339 to be aligned with the corresponding positions of the PCB board, install the PCB board on the insulating housing 1, and weld the first welding segment 236, the second welding segment 192 and the third welding segment 339 to the PCB board by soldering to complete the connection between the PCB board, the insulating housing 1, the first terminal 2 and the second terminal 3; during use, after facing one side of the enclosing portion 15 towards the mating male terminal and facing one side of the second terminal 3 towards the mating female terminal, clamp the mating male terminal with the first mating end 22 and insert the second mating end 32 into the mating female terminal to complete the connection between the connection module and the mating connector, forming a modularization.

Claims

1. A connection module, comprising an insulating housing having a first surface and a second surface opposite to each other, a first terminal and a second terminal, characterized in that: The first terminal and the second terminal both include a connecting end inserted into the insulating housing and a mating end respectively mated with adjacent mating terminals. The connecting end of the first terminal is inserted into the insulating housing from the first surface, and the connecting end of the second terminal is inserted into the insulating housing from the second surface. The first terminal and the second terminal respectively have a first welding end and a second welding end that are bent and extend outside the second surface.

2. The connection module according to claim 1, characterized in that: The insulating housing includes a first insertion cavity opened on the first surface and a second insertion cavity opened on the second surface; The mating end of the first terminal is defined as a first mating end, which protrudes from the first surface of the insulating housing, and the connecting end of the first terminal is defined as a first plug-in end and is inserted into the first insertion cavity; The mating end of the second terminal is defined as a second mating end, the second mating end protrudes from the second surface of the insulating housing, and the connecting end of the second terminal is defined as a second plug-in end and is inserted into the second insertion cavity; The plurality of connection modules may be connected in series, that is, the second mating end of a first connection module is inserted into the first mating end of a second connection module along a transverse direction.

3. The connection module according to claim 2, characterized in that: The first plug-in end includes a base distributed along the plug-in direction and a connecting portion formed by bending and extending in the same direction along the thickness direction of the base from opposite sides of the base, and the first insertion cavity is adapted to be opened in the base and the connecting portion to form a U shape; A door groove open toward the second surface is provided on both connecting parts along the width direction of the base, and a clamping protrusion is provided at the position of the first insertion cavity opposite to the two door grooves along the insertion direction to clamp in the door groove when the first insertion end is inserted into the first insertion cavity.

4. The connection module according to claim 3, characterized in that: First barbs are protruded on both sides of the door slot facing each other, and a first escape space for deformation of the first barbs is opened on the door slot from the side of the first barbs.

5. The connection module according to claim 3, characterized in that: The first mating end comprises an extension portion extending from one side of the two connecting portions away from the second surface along the plugging direction and a clip portion connected to the extension portion, the two extension portions are arranged at ends away from the connecting portions and tilted toward each other, and convex bumps for pressing against the mating terminal are provided on the two clip portions; On the first surface of the insulating shell, a blocking portion is protruded along the plug-in direction from both sides of the first plug-in cavity corresponding to the connecting portion, and a protective cavity for the first plug-in end to pass through is formed between the two blocking portions, and the extension portion and the clip portion are both located in the protective cavity.

6. The connection module according to claim 5, characterized in that: A through cavity is provided between the two enclosure parts and passes through in the base thickness direction and the plug-in direction, a first receiving groove is provided on the first surface of the insulating shell and communicates with the through cavity in the base thickness direction, and an insertion hole is provided on the side of the first receiving groove away from the through cavity and passes through the second surface of the insulating shell in the plug-in direction; The first welding end includes a first extension section extending from the base, a first bent section bent from the first extension section toward a side away from the extension section, a second extension section extending from the first bent section along the thickness direction of the base and used to be inserted into the penetration cavity and the first accommodating groove, a second bent section bent from the second extension section, a third extension section extending from the second bent section along the plug-in direction in the same direction as the base and used to be inserted into the insertion hole, and a first welding section extended from the third extension section along the plug-in direction and used to be welded to the PCB board, wherein a convex portion is convexly provided on the third extension section for pressing against the inner wall of the insertion hole.

7. The connection module according to claim 6, characterized in that: The insulating shell is recessed from the outer periphery of the second insertion cavity along the plug-in direction to form a connection surface for attaching to the PCB board, the insertion hole passes through the connection surface, the first welding section extends from the insertion hole to the outside of the connection surface, and a positioning column is protruded from the connection surface along the plug-in direction.

8. The connection module according to claim 7, characterized in that: The insulating shell is provided with a third insertion cavity which passes through the first surface along the insertion direction, and the third insertion cavity has an insertion port which is smaller in width than the third insertion cavity and passes through the connecting surface, and a tightening portion which is tightly fitted therein is provided in the third insertion cavity, and the tightening portion has a second welding section which passes through the insertion port and is used for welding to the PCB board.

9. The connection module according to claim 7, characterized in that: The second plug end is extended from the second mating end along the plugging direction, and second barbs for pressing against the inner wall of the second insertion cavity are protruded on both sides of the second plug end, and a second avoidance space for the second barb to deform is opened on the side of the second barb.

10. The connection module according to claim 9, characterized in that: A second receiving groove connected to the second insertion cavity is concavely formed on the second surface of the insulating shell, a connecting side surface is provided between the second surface of the insulating shell and the connecting surface, a third receiving groove connected to the second receiving groove and penetrating the connecting side surface along the thickness direction of the base is provided on the connecting side surface, a fourth receiving groove penetrating the connecting surface and connected to the third receiving groove is provided on the insulating shell, and the fourth receiving groove is staggered with the insertion hole along the thickness direction of the base; The second welding end includes a fourth extension section extending from the second mating end along the thickness direction of the base for inserting into the second accommodating groove, a third bent section bent from the fourth extension section, a fifth extension section extending from the third bent section for inserting into the second accommodating groove, a fourth bent section bent from the fifth extension section, a sixth extension section extending from the fourth bent section along the plug-in direction in the same direction as the second plug-in end and for inserting into the third accommodating groove, a fifth bent section bent from the sixth extension section, a seventh extension section extending from the fifth bent section along the thickness direction of the base for inserting into the fourth accommodating groove, a sixth bent section bent from the seventh extension section, and a third welding section extending from the sixth bent section along the plug-in direction in the same direction as the sixth extension section for welding to the PCB board.

Images