Pluggable electrical connector assembly

Abstract

The utility model relates to the technical field of electric connectors, and discloses a plug-in type electric connector assembly, which comprises a female end connector and a male end connector, the female end connector comprises a first plastic shell and a plurality of rows of first terminal assemblies, the first plastic shell comprises a main body and a cover body, the main body is provided with a plug-in cavity, and the plug-in cavity is communicated with the male end connector. A connecting structure is formed between the main body and the cover body; the male end connector comprises a second plastic shell and a plurality of rows of second terminal assemblies, the second plastic shell is provided with a plurality of rows of insertion cavities, and the second terminal assemblies are inserted into the insertion cavities. Through the arrangement of the connecting structure, the connecting structure, the main body and the cover body are mutually interacted and mutually connected, so that the terminal assemblies are limited while the installation of multiple rows of terminal assemblies is facilitated, the terminal assemblies are pressed on the main body, and the cover body is limited on the main body so as to limit each row of terminal assemblies; therefore, the installation, connection and positioning of the multiple rows of terminal assemblies are ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a pluggable electrical connector assembly. Background Technology

[0002] Plug-in electrical connector assemblies are electronic components used to achieve electrical connections. They are applied in various electrical devices, facilitating wiring. Their function is to act as a bridge between interrupted circuits or independent circuits, undertaking the task of current or signal transmission; or they can be used in conjunction with electrical terminals to form board-to-board connections; they can also be used independently for board-to-board connections. Plug-in electrical connector assemblies are widely used in various fields, such as the automotive and electric vehicle industries, and various electronic equipment fields, for connecting various electrical components.

[0003] A pluggable electrical connector assembly typically consists of a male connector and a female connector, and the transmission of electrical signals is achieved through the mating and insertion of the male and female connectors. The male and female connectors are key components of a connector system, and their mating action enables convenient connection and disconnection of the circuit. A traditional male connector consists of a first plastic housing, terminals embedded within the first plastic housing, and spring contacts. These components work together: the spring contacts tightly engage with the terminals to securely hold the conductive element (e.g., a cable) that passes through the first plastic housing, thereby ensuring reliable electrical signal transmission between the conductive element and the terminals. The female connector consists of a first plastic housing and complementary terminals that mate with the terminals of the male connector.

[0004] Currently, pluggable electrical connector assemblies on the market generally adopt a single-row terminal design to balance compact structure and ease of use within distribution boxes or cabinets (especially in applications requiring lower power handling). However, for applications requiring high power transmission, a double-row or multi-row terminal structure is more suitable because it provides better stability and convenience. Therefore, how to effectively and reasonably install double-row or multi-row terminal structures on male and female connectors is particularly important. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pluggable electrical connector assembly to solve the problem of how to install a multi-row terminal structure.

[0006] To solve the above-mentioned technical problems, the present invention provides a pluggable electrical connector assembly including a male connector and a female connector. The male connector includes a first plastic shell and multiple rows of first terminal assemblies. The first plastic shell includes a main body and a cover. The main body has insertion cavities for the multiple rows of first terminal assemblies to pass through. A connection structure is formed between the main body and the cover to connect the cover to the main body and restrict the connection of each first terminal assembly. The female connector includes a second plastic shell and multiple rows of second terminal assemblies corresponding to the first terminal assemblies. Multiple rows of insertion cavities are formed on the second plastic shell at positions corresponding to each insertion cavity along the insertion direction. The insertion cavities extend through a third surface along the insertion direction for one end of the main body to be inserted therein. The middle part of the second terminal assembly is inserted into the insertion cavity. One end of the second terminal assembly is used to enter the insertion cavity and cooperate with the first terminal assembly when one end of the main body is inserted into the insertion cavity.

[0007] Furthermore, the main body has a first surface and a second surface that are relatively distributed along the insertion direction, and the insertion cavity extends through the first surface along the insertion direction; the connection structure includes a connecting plate protruding from each side of the first surface of the main body along the insertion direction, a first slot formed on the inner side wall of each connecting plate, and a first buckle protruding from the outer side wall of the cover body corresponding to the position of each first slot, the cover body is inserted into the inner side of each connecting plate and each first buckle is engaged in the first slot; an extension block is protruding at each corner of the cover body, and a groove for riveting the extension block is recessed at the connection of each connecting plate and on the side away from the second surface.

[0008] Furthermore, each of the plug-in cavities corresponds one-to-one with the first terminal assembly and is configured in two rows and at least two columns. Each row and column of plug-in cavities has a mesh-like cavity wall located inside each connecting plate between the ends of the cavities near the first surface. The connecting structure also includes a mesh-like rib groove recessed on the side of the cover facing the first surface of the main body. The rib groove is recessed corresponding to the cavity wall, which divides the side of the cover facing the main body into multiple mating surfaces. The cover is used to cover the first surface. The side of the cavity wall near the first surface is inserted into the rib groove, and each of the mating surfaces extends into each plug-in cavity.

[0009] Furthermore, the insertion cavity includes a first assembly cavity segment located near the first surface and penetrating the first surface, a first tight-fit cavity segment located in the middle, and a first mating cavity segment located near the second surface, which are connected in sequence. Each of the first terminal assemblies includes a first metal terminal and a spring. The first metal terminal includes a tight-fit segment for insertion and confined within the first tight-fit cavity segment, a mating end connected to one end of the tight-fit segment, and an elastic clamping end connected to the other end of the tight-fit segment. The mating end is used for assembly within the first assembly cavity segment, and the elastic clamping end is used for insertion into the first mating cavity segment. There are abutment portions between the elastic clamping ends for clamping the mating terminal. A second insertion port communicating with the first mating cavity segment is provided on the second surface at a position corresponding to each abutment portion. The spring is connected to the mating end.

[0010] Furthermore, the spring sheet has a first end and a second end. The first end has a movable hole for the mating end to pass through. The first end is sleeved on the mating end through the movable hole. The second end is bent and pressed against the mating end from the inside of the movable hole. A clamping opening is formed between the mating end and the first end, which can be changed in size by squeezing the spring sheet. A first insertion port is provided on the cover body at the position corresponding to each clamping opening. The two rows of mating surfaces have a protruding section at the end facing the middle and towards the main body. The first insertion port passes through the protruding section along the insertion direction.

[0011] Furthermore, the mating end includes a first arm segment extending outwardly in the column direction after the self-tightening mating section is bent, a second arm segment extending from the first arm segment in the insertion direction, and a third arm segment extending from the second arm segment after being bent. A first side plate extending inwardly in the column direction and abutting against the cavity wall of the first assembly cavity is connected to the side wall of the second arm segment. A stop block protruding on the cavity wall of the first assembly cavity is provided to restrict the movement of the first side plate toward the second surface in the insertion direction. The middle part of the third arm segment protrudes inwardly in the column direction. The first end is sleeved on the third arm segment through a movable hole and extends inwardly in the column direction to form the clamping mouth. The second end abuts against the third arm segment.

[0012] Furthermore, a limiting groove is recessed on the mating surface of the cover facing the main body and at the position corresponding to the third arm segment, for the cover to pass through and press against the third arm segment. The limiting groove is used to restrict the movement of the third arm segment.

[0013] Furthermore, one end of the main body containing the second surface is defined as a plug-in portion; the second plastic housing has a third surface and a fourth surface distributed opposite to each other along the plug-in direction, the third surface facing the second surface, the plug-in cavities being distributed along the plug-in direction directly opposite each second socket and including a second mating cavity section located near the third surface, a second tight-fitting cavity section located in the middle, and a second assembly cavity section located near the fourth surface, the second assembly cavity section penetrating the third surface along the plug-in direction; the second terminal assembly is configured as two... Each row includes a second metal terminal having a straight section and a bent section. The straight section has a fitting part for tight fitting within a second fitting cavity. After the fitting part is inserted into the second fitting cavity, the straight section extends into the second mating cavity. The two rows of bent sections bend from the straight section within the second assembly cavity and then extend out of the second assembly cavity in a direction perpendicular to the straight section. The two rows of bent sections are spaced apart in the insertion direction. When the insertion part is correspondingly inserted into the second assembly cavity, the straight section passes through the second insertion port and into the abutment part.

[0014] Furthermore, a second clearance groove communicating with the second assembly cavity is recessed on the third surface of the second plastic shell, and an elastic sheet extends from the side wall of the insertion part. The elastic sheet includes an elastic segment extending toward the first surface along the insertion direction and a pressing segment extending outward from the end of the elastic segment near the first surface. The elastic segment and the pressing segment are spaced apart from the outer wall of the main body by a second movable space. A second buckle is protruding on the outward side of the elastic segment, and a second slot is formed on the side wall of the second clearance groove away from the second docking cavity. When the elastic segment is inserted into the second assembly cavity, it passes through the second clearance groove and the second buckle is engaged in the second slot.

[0015] Furthermore, the second plastic housing has a welding side facing the circuit board, and each of the bent sections extends from the welding side; an auxiliary welding part is detachably connected to the welding side.

[0016] The pluggable electrical connector assembly of this utility model has at least the following beneficial effects: by setting a connection structure, the connection structure, the main body and the cover interact and connect with each other, which facilitates the installation of multiple rows of terminal assemblies, while limiting the terminal assemblies, pressing the terminal assemblies onto the main body, and restricting the cover onto the main body to restrict each row of terminal assemblies, thereby ensuring the installation, connection and positioning of multiple rows of terminal assemblies. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the electrical connector assembly of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the male connector and the female connector of this utility model after they are separated.

[0020] Figure 3 This is an exploded view of the electrical connector assembly of this utility model;

[0021] Figure 4 for Figure 3 An enlarged view of part A shown;

[0022] Figure 5 This is an exploded view of the electrical connector assembly of this utility model from another angle;

[0023] Figure 6 for Figure 5 An enlarged view of part B shown;

[0024] Figure 7 This is a cross-sectional view of the electrical connector assembly of this utility model;

[0025] Figure 8 This is a cross-sectional view of the female connector of this utility model;

[0026] Figure 9 This is a schematic diagram of the structure of the first terminal assembly of this utility model;

[0027] Figure 10 This is a cross-sectional view of the male connector of this utility model;

[0028] Figure 11 This is a schematic diagram of the structure of the cover of this utility model.

[0029] The meanings of the labels in the attached diagram are as follows:

[0030] First plastic shell 1, main body 11, insertion part 11a, assembly part 11b, cover 12, insertion cavity 13, open side 13a, first assembly cavity section 131, first tight-fitting cavity section 132, first mating cavity section 133, mating surface 134, protruding section 135, first surface 141, second surface 142, first insertion port 143, second insertion port 144, pressing port 145, elastic sheet 15, elastic section 15a, pressing section 15b, first extension plate 151, second extension plate 152, third extension plate 153. Pressing plate; 154. Second movable space; 155. Second buckle; 156. Connecting enclosure plate; 161. First slot; 162. First buckle; 163. Rib groove; 164. Row groove; 1642. Extension block; 165. Groove; 166. Partition plate; 171. Limiting groove; 172. Stop block; 173. First clearance groove; 174. Protrusion; 175. First terminal assembly 2; First metal terminal 21; Fitting section 211; Second side plate 2111; Third side plate 2112; Mating end 212; First arm section 2121, Second arm segment 2122, Third arm segment 2123, Inflection point 2123a, First side plate 2124, Elastic clamping end 213, Elastic arm 2131, Supporting part 2132, Spring piece 22, First end 22a, Second end 22b, First arc-shaped section 221, Second arc-shaped section 222, Matching section 223, Supporting section 224, Supporting end 2241, Movable hole 225, First movable space 226, Clamping opening 227, Second plastic shell 3, Insertion cavity 31, Second docking cavity segment 3 11. Second tight-fitting cavity section 312. Second assembly cavity section 313. Third surface 321. Fourth surface 322. First cavity 331. Second cavity 332. Body partition 333. Column partition 334. Row partition 335. Notch 336. Extension block 337. Limiting partition 338. Welding side 339. Second clearance groove 34. Second slot 35. Slot 36. Auxiliary welding part 37. Insertion plate 371. Welding foot 372. Second terminal assembly 4. Straight section 41. Bending section 42. Tight-fitting part 43. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Please refer to Figures 1 to 11 The pluggable electrical connector assembly of this utility model includes a female connector and a male connector, and the female connector and the male connector transmit electrical signals by plugging and unplugging.

[0033] Please refer to Figures 1 to 9The female connector of this utility model includes a first plastic housing 1 and multiple rows of first terminal assemblies 2 installed inside the first plastic housing 1. The first plastic housing 1 is used to insulate and protect each row of first terminal assemblies 2. The first terminal assemblies 2 are used to cooperate with the male connector to achieve electrical connection, and the first terminal assemblies 2 are used to detachably connect with external conductive elements such as cables, thereby clamping and fixing the conductive elements or releasing the conductive elements. In this embodiment, the first terminal assemblies 2 are arranged in two rows, and correspondingly, the first plastic housing 1 is provided with two rows of corresponding mounting structures for the two rows of first terminal assemblies 2. In another embodiment, the first terminal assemblies 2 are arranged in three rows, and the first plastic housing 1 is provided with three rows of corresponding mounting structures for the two rows of first terminal assemblies 2. In yet another embodiment, the first terminal assemblies 2 are arranged in at least three rows, and the first plastic housing 1 is provided with at least three rows of corresponding mounting structures for the at least three rows of first terminal assemblies 2; preferably, the first terminal assemblies 2 are arranged in an even number of rows to facilitate the arrangement of the structures. The first terminal assembly 2 is configured with at least two columns, and the corresponding mounting structure is configured with at least two columns, so that the first terminal assembly 2 is mounted in a rectangular array on the first plastic housing 1.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The first plastic housing 1 has a geometric three-dimensional structure. In one embodiment, the first plastic housing 1 is composed of at least one cubic structure and is adapted to be disposed in the first terminal assembly 2. In another embodiment, the first plastic housing 1 has a prism-shaped structure and is adapted to be disposed in the first terminal assembly 2. In this embodiment, the first plastic housing 1 is injection molded from an insulating material such as plastic. To facilitate understanding of this structure, the present invention is labeled with "insertion," "row," and "column" to refer to different directions, and the insertion direction, row direction, and column direction are mutually perpendicular to form a triaxial structure. The first plastic housing 1 has a length, width, and height, with the row direction corresponding to its length, the column direction corresponding to its width, and the insertion direction corresponding to its height.

[0035] In this embodiment, the first plastic housing 1 includes a main body 11 and a cover 12. The main body 11 is hollow, forming multiple rows of insertion cavities 13. In one embodiment, the insertion cavities 13 are arranged in two independent rows in a rectangular array, corresponding to the number of first terminal assemblies 2. Each first terminal assembly 2 in the two rows passes through each insertion cavity 13 to be mounted on the first plastic housing 1. For ease of understanding, the main body 11 has a first surface 141 and a second surface 142 that are relatively distributed along the insertion direction. The first surface 141 and the second surface 142 are relatively distributed and both refer to the outer surface of the main body 11. For ease of installation, the insertion cavity 13 extends through the first surface 141 along the insertion direction to form an open side 13a. The cover 12 is used to cover the open side 13a of the insertion cavity 13, that is, the cover 12 covers the first surface 141 so that the cover 12 can be removed during installation, the first terminal assembly 2 can be inserted into the insertion cavity 13, and then the cover 12 is used to cover the open side 13a of the insertion cavity 13 to prevent the first terminal assembly 2 from detaching from the insertion cavity 13, thereby realizing the detachable connection of the first terminal assembly 2.

[0036] The insertion cavity 13 includes a first assembly cavity section 131 near the first surface 141, a first tight-fit cavity section 132 in the middle, and a first mating cavity section 133 near the second surface 142. The first assembly cavity section 131 is located on the side of the first tight-fit cavity section 132 facing the first surface 141 along the insertion direction, and the first mating cavity section 133 is located on the side of the first tight-fit cavity section 132 facing the second surface 142. The first assembly cavity section 131, the first tight-fit cavity section 132, and the first mating cavity section 133 are arranged sequentially and connected sequentially. The open side 13a is formed on the side of the first assembly cavity section 131 facing the first surface 141 along the insertion direction. The first assembly cavity section 131 is wider than the first tight-fit cavity section 132, and the cavity wall of the first assembly cavity section 131 near the first tight-fit cavity section 132 and facing the second surface 142 along the insertion direction is defined as a first sidewall. The widths of the first tight-fitting cavity 132 and the first mating cavity 133 can be the same, or the width of the first mating cavity 133 can be slightly smaller than that of the first tight-fitting cavity 132. One end of the first terminal assembly 2 can be inserted into the first tight-fitting cavity 132 and the first mating cavity 133, while the first sidewall can restrict the other end of the first terminal assembly 2 from continuing to move into the first tight-fitting cavity 132 and the first mating cavity 133. Correspondingly, the main body 11 has a plug-in portion 11a and an assembly portion 11b. The assembly portion 11b is the end where the first surface 141 of the main body 11 is located, and the plug-in portion 11a is the end where the second surface 142 of the main body 11 is located. When the female connector and the male connector are mated, the plug-in portion 11a moves closer to and plugs into the male connector along the plugging direction. A first socket 143 is provided on the first surface 141 at a position corresponding to the first terminal assembly 2, which communicates with the first assembly cavity 131. The first socket 143 passes through the cover 12 along the insertion direction toward the second surface 142 and is used for a cable to pass through and mate with the first terminal assembly 2. A second socket 144 is provided on the second surface 142 at a position corresponding to the first terminal assembly 2, which communicates with the first mating cavity 133. The second socket 144 passes through the second surface 142 along the insertion direction toward the first surface 141 and communicates with the first mating cavity 133. The second socket 144 is used for the corresponding structure of the male connector to pass through and insert into the first mating cavity 133, thereby realizing the transmission of electrical signals.

[0037] Please refer to Figures 1 to 8In the illustrated embodiment, an elastic sheet 15 is formed on one outer side wall of the first plastic housing 1. The elastic sheet 15 can be formed on the outer side wall of the insertion portion 11a. The elastic sheet 15 is used to engage with the male connector when it is inserted, thereby improving the connection stability between the male connector and the female connector. The elastic sheet 15 is formed on one of the outer side walls of the body 11 along the column direction. The elastic sheet 15 includes an elastic segment 15a extending towards the first surface 141 along the insertion direction and a pressing segment 15b extending outward from the end of the elastic segment 15a near the first surface 141. A second movable space 155 is spaced between the elastic segment 15a and the pressing segment 15b and the outer side wall of the body 11, so that the elastic segment 15a engages with the insertion portion 11a when it is inserted into the male connector. The elastic segment 15a includes a first extension plate 151 extending from the outer wall of the main body 11 along the column direction toward the side away from the main body 11, and a second extension plate 152 extending from the end of the first extension plate 151 away from the main body 11 along the insertion direction toward the side of the first surface 141. The pressing segment 15b includes a third extension plate 153 extending from the end of the second extension plate 152 away from the first extension plate 151 and extending along the column direction toward the side away from the main body 11, and a pressing plate 154 extending from the third extension plate 153 and extending along the insertion direction toward the side of the first surface 141. The third extension plate 153 is also inclined relative to the second extension plate 152 toward the side of the first surface 141. The second extension plate 152 is parallel to the outer wall of the insertion portion 11a, so that the second extension plate 152, the third extension plate 153 and the pressing plate 154 are all spaced apart from the insertion portion 11a. The elastic sheet 15 is integrally molded into the main body 11 and is also made of plastic, thus possessing a certain degree of elasticity. After a certain force is applied to the pressing plate 154, the second movable space 155 allows the second extension plate 152, the third extension plate 153, and the pressing plate 154 to move towards the main body 11. A second buckle 156 is protruding on the side of the second extension plate 152 facing away from the main body 11, and the second buckle 156 has a wedge-shaped structure that gradually widens towards the second surface 142 along the insertion direction, and has a first guide slope on the second buckle 156. The first extension plate 151, the second extension plate 152, and the second latch 156 are all located on the insertion portion 11a to facilitate insertion into the male connector. The first guide slope is pressed against the inner wall of the male connector when inserted, so that the second extension plate 152 can deform toward the second active space 155, allowing the second latch 156 to pass through the inner wall of the male connector until the second latch 156 is engaged in the corresponding slot structure. The second latch 156 then locks the insertion portion 11a to the male connector. The pressing plate 154 is located on the assembly portion 11b of the main body 11, so that it is located outside the male connector when the main body 11 is inserted into the male connector.When the main body 11 is inserted into the male connector, the pressing plate 154 can be manually pressed to bend the second extension plate 152 toward the second movable space 155, thereby facilitating the movement of the second latch 156 through the inner wall of the male connector. When disassembling the first plastic shell 1 and the male connector after connection, the second latch 156 can be easily disassembled by pressing the pressing plate 154 again to disengage it from the slot structure on the male connector.

[0038] In this embodiment, to facilitate the connection between the cover 12 and the main body 11 and to restrict the first terminal assembly 2, a connection structure is formed between the main body 11 and the cover 12 to connect the cover 12 to the main body 11 and restrict the first terminal assembly 2. The connection structure includes a connecting plate 161 extending from at least one opposite side edge of the first surface 141 of the main body 11 along the insertion direction, a first slot 162 formed on the inner side wall of each connecting plate 161, and a first buckle 163 protruding on the outer side wall of the cover 12 corresponding to the position of each first slot 162. In this embodiment, since the first terminal assembly 2 is arranged in two rows, the insertion cavity 13 is also arranged in two rows corresponding to the first terminal assembly 2. For ease of installation, the main body 11 and the outer shell 12 are symmetrically arranged along the column direction with their midpoints, and correspondingly, the two rows of insertion cavities 13 are also symmetrically distributed in the column direction. The first socket 143 and the second socket 144 are also arranged in two rows. The number of columns of the insertion cavity 13, the first socket 143, and the second socket 144 is also equal to the number of columns of the first terminal assembly 2. That is, each first terminal assembly 2 has a separate insertion cavity 13, a first socket 143, and a second socket 144 corresponding to it. The connecting plate 161 can be configured as two and are respectively arranged on the two sides of the first surface 141 along the column direction. An installation space is formed between the two connecting plates 161. The length, width, and height of the installation space are adapted to the length, width, and height of the cover 12, so that the cover 12 can be inserted into the inside of each connecting plate 161. A first slot 162 is provided on each connecting plate 161 corresponding to an insertion cavity 13. That is, the number of first slots 162 on the two connecting plates 161 is the same as the number of insertion cavities 13. The position and number of the first buckles 163 are arranged corresponding to the first slots 162. The first buckle 163 is wedge-shaped and gradually widens towards the side away from the main body 11, having a second guide slope. During assembly, the cover 12 is inserted into the installation space, and the first buckle 163 is gradually squeezed into the first slot 162 during the installation process. During the installation of the cover 12, the first buckle 163 is pressed against the inner side of the connecting plate 161, and the connecting plate 161 is squeezed outward to a certain extent. The first buckle 163 is squeezed into it until it penetrates into the first slot 162 to achieve locking.To further optimize the connection structure, connecting plates 161 are also formed on the two sides of the first surface 141 along the row direction. The ends of each pair of adjacent connecting plates 161 intersect to form corners. An extension block 165 is protruding at each corner of the cover 12. A groove 166 is recessed on the side away from the second surface 142 at the connection of each connecting plate 161 for the extension block 165 to be riveted therein. The groove 166 is through the side away from the main body 11 along the insertion direction and through the side of the installation space, so that the extension block 165 can be inserted into the groove 166 when the cover 12 moves towards the main body 11 along the insertion direction. When the cover 12 is installed in the installation space, the extension block 165 is riveted into the groove 166. It should be noted that, in order to facilitate the insertion and mating of the main body 11 with the male connector, a first clearance groove 174 is provided on the second surface 142 at the gap between each of the first mating cavity sections 133. The first clearance groove 174 is provided corresponding to the partition 171 so that the second surface 142 is divided into two rows and several columns of mating surfaces.

[0039] Each row and column of insertion cavities 13 has a grid-like cavity wall formed between one end of the first surface 141 (i.e., between each first assembly cavity segment 131) located inside each connecting plate 161, defining the cavity wall between any two adjacent insertion cavities 13 as a partition 171. To increase the stability and firmness of the connection between the cover 12 and the main body 11, the connection structure also includes a rib groove 164 recessed on the side of the cover 12 facing the first surface 141 of the main body 11. The number of rib grooves 164 is the same as the number of partitions 171 and they are opened opposite each other, thus presenting a grid shape. The rib grooves 164 are through the side facing the main body 11. Since the rib grooves 164 are grid-like and correspond to each partition 171, they have row grooves 1641 parallel to the row direction and column grooves 1642 parallel to the column direction. Because the insertion cavity 13 is arranged in two rows, the partition 171 parallel to the row direction has only one row, each row groove 1641 has one groove, and each column groove 1642 has at least one groove. If the insertion cavity 13 has three columns, then there are two column grooves 1642; if the insertion cavity 13 has four columns, then there are three column grooves 1642, and so on. The row grooves 1641 are located at the midpoint of each column groove 1642 and intersect perpendicularly with each column groove 1642, and the row grooves 1641 and each column groove 1642 are interconnected. The two ends of the row grooves 1641 extend through the row direction, and the two ends of the column grooves 1642 extend through the column direction. The rib groove 164 divides the side of the cover 12 facing the main body 11 into multiple mating surfaces 134. When the cover 12 is placed on the first surface 141 and the first buckle 163 is engaged in the first slot 162, the side of the partition 171 away from the first tight-fitting cavity section 132 is inserted into the rib groove 164, and each mating surface 134 extends into each insertion cavity 13. Preferably, a protrusion 175 is provided on the inner wall of the rib groove 164 (i.e., the row groove 1642) along the row direction away from the main body 11, so as to facilitate modification by adding or removing glue during the injection molding of the cover 12. Preferably, one end of the two rows of mating surfaces 134 facing the middle is provided with a protruding section 135 on the side facing the main body 11. The end face of the protruding section 135 is still defined as the mating surface 134. The first insertion port 143 passes through the protruding section 135 along the insertion direction. After the cover 12 is assembled on the main body 11, the protruding section 135 extends into the first assembly cavity section 131. In this embodiment, the limiting groove 172 is recessed on the mating surface 134 of the cover 12. When the first terminal assembly 2 is installed in the main body 11, when the cover 12 is placed on the main body 11 to block the open side 13a of the insertion cavity 13, the end of the first terminal assembly 2 extends into the limiting groove 172. The inner wall of the limiting groove 172 abuts against the first terminal assembly 2, thereby further restricting the first terminal assembly 2 and preventing the first terminal assembly 2 from moving outward toward the open side 13a. At the same time, it can also restrict the first terminal assembly 2 from moving in the column direction to a certain extent.

[0040] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9 The first terminal assembly 2 includes a first metal terminal 21 and a spring contact 22, both of which can pass through the insertion cavity 13. The first metal terminal 21 is inserted into the insertion cavity 13, while the spring contact 22 is installed within the insertion cavity 13. The spring contact 22 has a first end 22a and a second end 22b. The first end 22a extends toward and intersects the first metal terminal 21, and is movably connected to the first metal terminal 21, allowing the first end 22a to move relative to the first metal terminal 21, or the first metal terminal 21 to move relative to the first end 22a. The second end 22b is bent from the first end 22a and intersects with the first end 22a and abuts against the first metal terminal 21, so that a first movable space 226 is formed between the inner sides of the spring piece 22. The first movable space 226 allows the first end 22a to move relative to the first metal terminal 21. When the first end 22a moves after being squeezed, it cooperates with the first metal terminal 21 to restrict or release the conductive element. The second socket 143 is directly opposite the first metal terminal 21. When the first end 22a is squeezed, the first movable space 226 allows the first end 22a to move and gradually narrow.

[0041] In this embodiment, the first metal terminal 21 is made of a conductive metal material such as copper, and includes a fitting section 211 for insertion and confined within a first fitting cavity 132, a mating end 212 connected to one end of the fitting section 211, and an elastic clamping end 213 connected to the other end of the fitting section 211. During assembly, the mating end 212 is fitted into the first assembly cavity 131, the elastic clamping end 213 extends into the first mating cavity 133 and aligns with the second insertion port 144, the fitting section 211 abuts against the cavity wall of the first fitting cavity 132 to restrict the movement of the first metal terminal 21, the mating end is located within the first assembly cavity 131, and a spring piece 22 is mounted on the mating end 212 so that it is installed within the first assembly cavity 131 along with the first metal terminal 21.

[0042] The fitting section 211 includes a second side plate 2111 and two third side plates 2112 that extend from opposite sides of the second side plate 2111 after being bent. The second side plate 2111 is parallel to the column direction, and the two third side plates 2112 extend from the two sides of the second side plate 2111 along the column direction. The two third side plates 2112 are parallel to the insertion direction and perpendicular to the column direction, so that the fitting section 211 has a U-shaped structure. Due to the elastic properties of its material, the size of the first fitting cavity section 132 is adapted to the fitting section 211. When the fitting section 211 is inserted into the first fitting cavity section 132, the two third side plates 2112 of the fitting section 211 abut against the cavity wall of the first fitting cavity section 132.

[0043] The mating end 212 includes a first arm segment 2121 that extends outward in the column direction after the self-tightening mating section 211 is bent, a second arm segment 2122 that extends from the first arm segment 2121 in the insertion direction, and a third arm segment 2123 that extends from the second arm segment 2122 after being bent. On both sides of the second arm segment 2122 along the width direction of the second arm segment 2122, there are first side plates 2124 extending in the column direction. After the spring piece 22 is installed on the first metal terminal 21, the spring piece 22 and the first side plate 2124 are respectively located on opposite sides of the second arm segment 2122. On one side wall of the first assembly cavity section 131 in both rows facing each other, there is a stop block 173 for abutting against the first side plate 2124 after the first metal terminal 21 is inserted into the insertion cavity 21. After the tight fitting section 211 of the first metal terminal 21 is inserted into the first tight fitting cavity section 132, the first side plate 2124 is made to face the stop block 173 and abut against the stop block 173. Alternatively, there can be a certain gap between the third side plate 2112 and the stop block 173. In this embodiment, the limiting groove 172 is opened directly opposite the third arm segment 2123 in the insertion direction. The middle part of the third arm segment 2123 is bent and protruded towards the side where the first side plate 2124 is located (i.e., the two rows of first terminal assemblies 2 face each other or inward in the column direction) to form an inflection point 2123. Both ends of the third arm segment 2123 extend backward in the insertion direction and are inclined away from the first side plate 2124. The second end 22b of the spring piece 22 can abut against the inflection point 2123a. After assembly, the third arm segment 2123 extends into the limiting groove 172 and is held in place in the insertion cavity 13 by the inner wall of the limiting groove 172. To facilitate cable installation, the side wall of the limiting groove 172 facing the row groove 1641 is connected to the row groove 1641 to form an opening. The opening is only opened on the side of the groove wall facing the main body 11 relative to the limiting groove 172. Therefore, after the assembly is completed, the third arm segment 2123 is still pressed and confined in the limiting groove 172, while the inflection point 2123a passes through the opening and enters the first socket 143.

[0044] The elastic clamping end 213 includes two elastic arms 2131 extending from the side of the two third side plates 2112 away from the mating section 211 along the insertion direction and facing away from the mating end 212. The two elastic arms 2131 gradually tilt towards each other and narrow, and after the two elastic arms 2131 approach each other, they bend and continue to tilt away from each other and widen, so that the two elastic arms 2131 have abutting portions 2132 that are close to or abut against each other. During assembly, one end of the elastic arm 2131 is inserted into the first mating cavity section 133, the two third side plates 2112 are used to abut against the cavity wall of the first mating cavity section 133, one end of the abutting portion 2132 is close to the second socket 144, and the corresponding structure of the male connector is inserted into the first mating cavity section 133 through the second socket 144 and squeezed between the two elastic arms 2131, with the abutting portion 2132 abutting against the corresponding structure of the male connector.

[0045] In this embodiment, the spring piece 22 is made of a conductive metal, such as stainless steel. The spring piece 22 includes a first arc-shaped section 221 with both ends bent towards the cover 12; a second arc-shaped section 222 extending from one end of the first arc-shaped section 221 in the insertion direction away from the first arc-shaped section 221 and then bending towards the second arm section 2122 in the column direction; a mating section 223 extending from the second arc-shaped section 222 in the column direction; and a supporting section 224 extending from the other end of the first arc-shaped section 221 towards the mating section 223. The end of the second arc-shaped section 222 away from the first arc-shaped section 221 is inclined in the column direction towards the side away from the supporting section 224. The mating section 223 is the first end 22a of the spring piece 22, and the middle part of the mating section 223 is bent and protrudes towards the side away from the first arc-shaped section 221. The abutment section 224 is the second end 22b of the spring piece 22. The end of the abutment section 224 away from the first arc-shaped section 221 is inclined towards the side away from the second arc-shaped section 222 to form an abutment end 2241, so that the abutment section 224 is parallel to the second arm section 2122 and the abutment end 2241 is parallel to the third arm section 2123 and close to the end of the second arm section 2122. A movable hole 225 is formed through the mating section 223 along the insertion direction. The width of the movable hole 225 is greater than the width of the third arm section 2123 and the width of the abutment end 2241. The abutment end 2241 is movably inserted into the movable hole 225 so that the spring piece 22 surrounds a closed loop of the first movable space 226. The third arm segment 2123 of the first metal terminal 21 moves into the movable hole 225 along the insertion direction. One end of the third arm segment 2123 connected to the second arm segment 2122 is located within the movable hole 225. The abutting end 2241 abuts against the inflection point 2123a of the third arm segment 2123 to restrict the movement of the abutting end 2241. In this embodiment, when the abutting end 2241 abuts against the third arm segment 2123, the abutting section 224 is close to the second arm segment 2122, and the third arm segment 2123 passes through the third movable hole 225, the spring piece 22 is in a compressed state, causing the mating section 223 to abut against the third arm segment 2123 through the movable hole 225. This, in turn, cooperates with the abutting section 224 to restrict the spring piece 22 onto the first metal terminal 21, thus completing the connection between the first metal terminal 21 and the spring piece 22. The mating section 223 is fitted onto the third arm section 2123 through the movable hole 225, thereby forming a clamp 227 with the first metal terminal 21, the size of which can be changed by squeezing the spring 22. The clamp 227 is formed by the inward end of the movable hole 225 surrounding the third arm section 2123, and the first insertion port 143 is provided corresponding to the clamp 227.On both sides of the main body 11 along the column direction, at positions directly opposite the first assembly cavity 131, there are pressing ports 145 that penetrate the main body 11 and connect to each of the first assembly cavities 131. The pressing ports 145 face the second arc-shaped section 222, allowing pressure on the second arc-shaped section 222 through the pressing ports 145. This causes the mating section 223 to move inward, enlarging the clamping opening 227 for cable passage. When the second arc-shaped section 222 is released, the mating section 223 springs back towards the pressing port 145 and clamps the cable together with the third arm section 2123. The space between the two first side plates 2124 allows the cable to pass through, avoiding obstruction of cable connection. To facilitate the installation of the mating section 223, there is space between the stop block 173 and the mating section 223 for the mating section 223 to move inward.

[0046] The working method of one embodiment of the male connector of this utility model is as follows: During assembly, firstly, the third arm segment 2123 is passed through the movable hole 225, and the curved elastic segments 322 of the two rows of first terminal assemblies 2 are all located on the side of the second arm segment 2122 facing outward along the column direction. The abutment section 224 and the mating section 223 are mated with the third arm segment 2123 to install the spring piece 22 on the mating end 212. After one end of the abutment part 2132 faces the insertion cavity 13 and the two rows of spring pieces 22 face outward along the column direction relative to the second arm segment 2122, the first terminal assembly 2 is inserted into the insertion cavity 13. After the tight fitting section 211 abuts against the cavity wall of the first tight fitting cavity section 132, the first side plate 2124 approaches the stop block 173, the holding part 2132 faces the second insertion port 144, and the spring piece 22 is restricted within it by the cavity walls on both sides of the first assembly cavity section 131. After the spring piece 22 is installed in the first assembly cavity section 131, the cover 12 is placed on the main body 11, so that the first insertion port 143 corresponds to the mating section 223 along the insertion direction, the limiting groove 172 presses against the third arm section 2123, and the mating surface 134 extends into the first assembly cavity section 131, so that the side of the partition plate 171 is inserted into the rib groove 164. In use, press the second arc-shaped section 222 from the pressing port 145, so that the mating section 223 faces the stop block 173 and opens the clamp 227. Then, keep the clamp 227 open, pass the cable through the clamp 227 through the first socket 143, and then release the second arc-shaped section 222. The second arc-shaped section 222 rebounds and presses against the cable. Insert the plug part 11a of the main body 11 into the mating male connector, so that the corresponding structure of the male connector passes through the second socket 144 and is clamped in cooperation with the holding part 2132, thereby realizing the circuit connection of the female connector of this utility model.

[0047] Please refer to Figures 1 to 7 and Figure 10The male connector of this utility model includes a second plastic housing 3 and multiple rows of second terminal assemblies 4 installed inside the first plastic housing. The second plastic housing 3 is used to insulate and protect each row of second terminal assemblies 4. The second terminal assemblies 4 are used to cooperate with the first terminal assemblies 2 to achieve electrical connection, and the second terminal assemblies 4 are used to solder to a circuit board to achieve circuit connection. In this embodiment, the second terminal assemblies 4 are arranged in two rows corresponding to the first terminal assemblies 2. Correspondingly, the second plastic housing 3 is provided with two rows of corresponding mounting structures corresponding to the two rows of second terminal assemblies 4. In another embodiment, the second terminal assemblies 4 are arranged in three rows, and the second plastic housing 3 is provided with three rows of corresponding mounting structures corresponding to the two rows of second terminal assemblies 4. In yet another embodiment, the second terminal assemblies 4 are arranged in at least three rows, and the second plastic housing 3 is provided with at least three rows of corresponding mounting structures corresponding to the at least three rows of second terminal assemblies 4. Preferably, the second terminal assemblies 4 are arranged in an even number of rows to facilitate the arrangement of the structures. The second terminal assemblies 4 are arranged in at least two columns, and the corresponding mounting structures are arranged in at least two columns, with the second terminal assemblies 4 mounted in a rectangular array on the second plastic housing 3. It should be noted that the position and arrangement of the second terminal assembly 4 are consistent with those of the first terminal assembly 2.

[0048] Please refer to Figures 1 to 7 and Figure 10 The second plastic housing 3 has a geometric three-dimensional structure. In one embodiment, the second plastic housing 3 is composed of at least one cubic structure and is adapted to be disposed on the second terminal assembly 4. In another embodiment, the second plastic housing 3 has a prism-shaped structure and is adapted to be disposed on the second terminal assembly 4. In this embodiment, the second plastic housing 3 is injection molded from an insulating material such as plastic.

[0049] In this embodiment, a hollow space is provided in the second plastic housing 3, forming multiple rows of insertion cavities 31. In one embodiment, the insertion cavities 31 are arranged in two rows, independent of each other, and distributed in a rectangular array, corresponding to the number of second terminal assemblies 4. Each second terminal assembly 4 in the two rows passes through the insertion cavity 31 to be mounted on the second plastic housing 3. For ease of understanding, the second plastic housing 3 has a third surface 321 and a fourth surface 322 that are relatively distributed along the insertion direction. The third surface 321 and the fourth surface 322 are relatively distributed and both refer to the outer side of the second plastic housing 3. The third surface 321 is used to face the second surface 142 facing the second plastic housing 31 during use, while the fourth surface 322 is used to face away from the first plastic housing 1. The insertion cavity 31 extends through the third surface 321 along the insertion direction, and the insertion portion 11a is used to pass through the third surface 321 into the insertion cavity 31. The middle part of the second terminal assembly 4 is inserted into the insertion cavity 31, and one end of the second terminal assembly 4 is used to penetrate into the insertion cavity 13 and cooperate with the first terminal assembly 2 when the insertion part 11a is inserted into the insertion cavity 31.

[0050] The insertion cavities 31 are distributed along the insertion direction, facing each of the second sockets, and their number is the same as that of the insertion cavities 13. The insertion cavities 31 include a second mating cavity section 311 located near the third surface 321, a second tight-fitting cavity section 312 located in the middle, and a second assembly cavity section 313 located near the fourth surface 322. The second mating cavity section 311, the second tight-fitting cavity section 312, and the second assembly cavity section 313 are sequentially connected. The second assembly cavity section 313 penetrates the third surface 321 along the insertion direction so that the insertion part 11a can pass through it and engage with the female connector. Among them, a first cavity 331 is formed inside the second plastic shell 3 along the insertion direction towards the third surface 321, and a second cavity 332 is formed inside the second plastic shell 3 along the insertion direction towards the fourth surface 322. The first cavity 331 and the second cavity 332 are spaced apart by a body partition 333. Within the first cavity 331, a row of partitions 334 extends from the main body partition 333 towards the third surface 321 along the insertion direction. The positions of the row partitions 334 correspond to the row grooves 1642, and therefore, the row partitions 334 are distributed parallel to the row direction. On each row partition 334, row partitions 335 are provided on both sides along the row direction and at positions corresponding to the row grooves 1461, extending in opposite directions. The row partitions 335 on adjacent rows of partitions 334 can be spaced apart to reduce adhesive use, or they can be connected to each other to improve stability. The column partition 334 and the row partition 335 divide the first cavity 331 into two rows of secondary cavities. Each secondary cavity is defined as the second docking cavity section 311. The column partition 334 and the row partition 335 are arranged corresponding to the first clearance groove 174. When the insertion part 11a passes through the first cavity 331, the column partition 334 and the row partition 335 are inserted into the first clearance groove 174, and each insertion surface is respectively inserted into each of the second docking cavity sections 311.

[0051] To ensure the fit between the elastic piece 15 and the second plastic housing 3, a second clearance groove 34 communicating with the second assembly cavity section 313 is recessed on the third surface 321 of the second plastic housing 3. Specifically, a notch 336 is recessed on one end (or one side) of each row partition 334 corresponding to the elastic piece 15, facing the fourth surface 322 along the insertion direction and extending through the row direction. The notch 336 and the inner wall of the first cavity 331 together form the second clearance groove 34. The notch 336 extends along the row direction away from the central axis of the row partition 334 to the inner wall of the first cavity 331, so that the second clearance groove 34 communicates with each of the second mating cavities 311. The thickness of the second clearance groove 34 is adapted to the width of the elastic segment 15a, so that the elastic segment 15a can be inserted into the second plastic housing 3 along with the insertion part 11a. A second retaining groove 35 is formed on the groove wall of the second clearance groove 34 away from the second mating cavity section 311. In use, the elastic piece 15 is aligned with the second relief groove 34, and the insertion part 11a is moved toward the third surface 321. It is then moved toward the first cavity 331 along the insertion direction, so that the row partition 334 and the row partition 335 are inserted into the rib groove 164, the insertion surface is inserted into the second mating cavity section 311, and the elastic piece 15 is inserted into the second relief groove 34. The second terminal assembly 4 is gradually inserted into the first mating cavity section 133 through the second insertion port 144. During the insertion process, the second buckle 156 is squeezed, causing the second extension plate 152 to bend toward the second active space 155 until the insertion surface abuts against the side wall of the second relief groove 34 facing the fourth surface 322. At this time, the second buckle 156 is engaged in the second slot 35.

[0052] On the side wall of the second cavity 332 facing the third surface 321, at positions corresponding to each of the second mating cavity segments 311, an extension block 337 protrudes along the insertion direction towards the fourth surface 322. A second tight-fitting cavity segment 312 is formed on each extension block 337 and extends through the extension block 337 along the insertion direction to connect the first cavity 331 and the second cavity 332. On the second cavity 332, at positions corresponding to the row partition 334, a limiting partition 338 protrudes from the body partition 333 along the insertion direction. The limiting partition 338 extends through the side facing the fourth surface 322 to divide the second cavity 332 into a second assembly cavity segment 313, into which each extension block 337 extends. The second plastic housing 3 has a soldering side 339 facing the circuit board. An auxiliary soldering part 37 is detachably connected to the soldering side 339 to increase tensile force during soldering and improve the stability of the weld. The welding side 339 is located on the side wall of the second plastic housing 3 away from the second slot 35 along the column direction. To facilitate the installation of the two rows of second terminal assemblies 4, the second assembly cavity section 313 extends through the welding side 339 along the column direction. One row of extension blocks 337 is shorter than the other row of extension blocks 337, and the lengths of the second terminals must also be different. However, it must be ensured that the length of the second terminal assembly 4 that penetrates into the second mating cavity section 311 is consistent with the length of the portion that protrudes from the welding side 339. Thus, the end of the second terminal assembly 4 that protrudes from the welding side 339 in the column direction is not in a straight line. Specifically, a slot 36 is formed on the welding surface of the second plastic housing 3 along the insertion direction. The slot 36 is open on the side facing the fourth surface 322, and the end of the insertion facing the fourth surface 322 extends outward along the column direction through the welding surface. The auxiliary welding part 37 includes an insertion plate 371 for insertion into the slot 36 along the insertion direction and a welding foot 372 extending along the column direction after being bent from one end of the insertion plate 371 toward the fourth surface 322. The insertion plate 371 is provided with barbs on both sides to abut against the inner wall of the slot 36 when the insertion plate 371 is inserted into the slot 36.

[0053] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 9In the illustrated embodiment, the second terminal assembly 4 is configured with two rows, each including a straight section 41 and a bent section 42. The straight section 41 extends parallel to the insertion direction, and the bent section 42 extends perpendicular to the straight section 41 after being bent from the straight section 41, extending along the column direction. A fitting part 43 is provided on the straight section 41 for tight fitting within the second fitting cavity 312. The fitting part 43 protrudes along the column direction from both sides of the straight section 41 and is adapted to the width and length of the second fitting cavity 312, allowing for insertion and riveting. The end of the straight section 41 away from the bent section 42 extends into the second mating cavity 311 after the fitting part 43 is inserted into the second fitting cavity 312. Both rows of bent sections 42 extend out of the second assembly cavity 313 after being bent from the straight section 41 within the second assembly cavity 313, extending along the column direction. In this configuration, one row of extension blocks 337 near the welding surface is shorter than the other row of extension blocks 337. The bent sections 42 extend from the straight sections 41 into the second assembly cavity section 313, resulting in different lengths for the two rows of straight sections 41. The row of straight sections 41 near the welding surface is shorter than the other row, and the two rows of bent sections 42 are spaced apart in the insertion direction for welding to the circuit board. After assembly, when the insertion portion is inserted into the second assembly cavity section 313, the straight section 41 passes through the second insertion port and into the supporting portion. Each bent section 42 protrudes from the welding side 339, and the protruding portion of each bent section 42 is flush with the welding foot 372 in the insertion direction. When the insertion portion 11a is inserted into the second assembly cavity section 313, the straight section 41 passes through the second insertion port 144 and into the supporting portion 2132.

Claims

1. A pluggable electrical connector assembly, comprising a female connector and a male connector, characterized in that: The female connector includes a first plastic shell and multiple rows of first terminal assemblies. The first plastic shell includes a main body and a cover. The main body has insertion cavities for the multiple rows of first terminal assemblies to pass through. A connection structure is formed between the main body and the cover to connect the cover to the main body and restrict the connection of each first terminal assembly. The male connector includes a second plastic shell and multiple rows of second terminal assemblies corresponding to the first terminal assembly. Multiple rows of insertion cavities are formed on the second plastic shell at positions corresponding to each insertion cavity along the insertion direction. The insertion cavities extend through a third surface along the insertion direction for one end of the main body to be inserted therein. The middle part of the second terminal assembly is inserted into the insertion cavity. One end of the second terminal assembly is used to penetrate into the insertion cavity and cooperate with the first terminal assembly when one end of the main body is inserted into the insertion cavity.

2. The pluggable electrical connector assembly as claimed in claim 1, characterized in that: The main body has a first surface and a second surface that are relatively distributed along the insertion direction, and the insertion cavity extends through the first surface along the insertion direction; the connection structure includes a connecting plate protruding from each side of the first surface of the main body along the insertion direction, a first slot formed on the inner side wall of each connecting plate, and a first buckle protruding from the outer side wall of the cover body corresponding to the position of each first slot, the cover body is inserted into the inner side of each connecting plate and each first buckle is engaged in the first slot; The cover has protruding extension blocks at each corner, and a groove is provided at the connection of each connecting plate on the side away from the second surface for the extension blocks to be riveted therein.

3. The pluggable electrical connector assembly as described in claim 2, characterized in that: The insertion cavities correspond one-to-one with the first terminal assemblies and are arranged in two rows and at least two columns. Each row and column of insertion cavities has a grid-like cavity wall formed between the ends of the insertion cavities near the first surface, located inside each connecting plate. The connecting structure also includes a grid-like rib groove recessed on the side of the cover facing the first surface of the main body. The rib groove is recessed corresponding to the cavity wall, so that the side of the cover facing the main body is divided into multiple mating surfaces. The cover is used to cover the first surface. The side of the cavity wall near the first surface is inserted into the rib groove, and each of the mating surfaces extends into each insertion cavity.

4. The pluggable electrical connector assembly as described in claim 3, characterized in that: The insertion cavity includes a first assembly cavity segment located near the first surface and penetrating the first surface, a first tight fit cavity segment located in the middle, and a first mating cavity segment located near the second surface, which are connected in sequence. Each of the first terminal assemblies includes a first metal terminal and a spring. The first metal terminal includes a mating section for insertion and confined within a first mating cavity, a mating end connected to one end of the mating section, and an elastic clamping end connected to the other end of the mating section. The mating end is used to assemble within the first assembly cavity, and the elastic clamping end is used to penetrate into the first mating cavity. There are abutment portions between the elastic clamping ends for clamping the mating terminal. A second insertion port communicating with the first mating cavity is provided on the second surface at a position corresponding to each abutment portion. The spring is connected to the mating end.

5. The pluggable electrical connector assembly as claimed in claim 4, characterized in that: The spring has a first end and a second end. The first end has a movable hole for the mating end to pass through. The first end is sleeved on the mating end through the movable hole. The second end is bent and pressed against the mating end from the inside of the movable hole. A clamping opening is formed between the mating end and the first end, which can be changed in size by squeezing the spring. A first insertion opening is provided on the cover at the position corresponding to each clamping opening. The two rows of mating surfaces have a protruding section at one end facing the middle and protruding towards the main body. The first insertion port passes through the protruding section along the insertion direction.

6. The pluggable electrical connector assembly as claimed in claim 5, characterized in that: The mating end includes a first arm segment extending outward in the column direction after the self-tightening section is bent, a second arm segment extending from the first arm segment in the insertion direction, and a third arm segment extending from the second arm segment after being bent. A first side plate extending inward in the column direction and abutting against the cavity wall of the first assembly cavity is connected to the side wall of the second arm segment. A stop block protruding on the cavity wall of the first assembly cavity is provided to restrict the movement of the first side plate toward the second surface in the insertion direction. The middle part of the third arm segment protrudes inward in the column direction. The first end is sleeved on the third arm segment through a movable hole and extends inward in the column direction to form the clamping mouth. The second end abuts against the third arm segment.

7. The pluggable electrical connector assembly as claimed in claim 6, characterized in that: On the mating surface of the cover facing the main body, at the position corresponding to the third arm segment, there is a limiting groove for the cover to pass through and press against the third arm segment. The limiting groove is used to restrict the movement of the third arm segment.

8. The pluggable electrical connector assembly as claimed in claim 5, characterized in that: The second surface of the main body is defined as a plug-in portion at one end; The second plastic shell has a third surface and a fourth surface that are distributed opposite to each other along the insertion direction. The third surface is disposed facing the second surface. The insertion cavity is distributed in the insertion direction and is directly opposite to each second socket. It includes a second mating cavity section located near the third surface, a second tight-fitting cavity section located in the middle position, and a second assembly cavity section located near the fourth surface. The second assembly cavity section penetrates the third surface along the insertion direction. The second terminal assembly is configured as two rows, each including a straight section and a bent section of the second metal terminal. The straight section is provided with a fastening part for tight fitting into a second fastening cavity. After the fastening part is inserted into the second fastening cavity, the straight section extends into the second mating cavity. The two rows of bent sections are bent from the straight section into the second assembly cavity and then extend out of the second assembly cavity in a direction perpendicular to the straight section. The two rows of bent sections are spaced apart in the insertion direction. When the insertion part is inserted into the second assembly cavity, the straight section passes through the second insertion port and into the supporting part.

9. The pluggable electrical connector assembly as claimed in claim 8, characterized in that: The third surface of the second plastic shell is recessed with a second clearance groove that communicates with the second assembly cavity. An elastic sheet extends from the side wall of the insertion part. The elastic sheet includes an elastic segment extending toward the first surface along the insertion direction and a pressing segment extending outward from the end of the elastic segment near the first surface. The elastic segment and the pressing segment are spaced apart from the outer wall of the main body by a second movable space. A second buckle is protruding from the outward side of the elastic segment. A second slot is formed on the side wall of the second clearance groove away from the second docking cavity. When the elastic segment is inserted into the second assembly cavity, it passes through the second clearance groove and the second buckle is engaged in the second slot.

10. The pluggable electrical connector assembly as claimed in claim 8 or 9, characterized in that: The second plastic housing has a welding side facing the circuit board, and each of the bent sections extends from the welding side; an auxiliary welding part is detachably connected to the welding side.

Images