Pluggable wiring connector

Abstract

The utility model relates to the technical field of connectors, and discloses a plug-in type wiring connector, which comprises a plastic shell, a terminal assembly arranged in the plastic shell and a button arranged on the plastic shell, the terminal assembly comprises a metal terminal and an elastic sheet, the metal terminal is provided with a first assembly structure, and the elastic sheet is provided with a second assembly structure. The elastic sheet is provided with a second assembling structure, and the metal terminal and the elastic sheet are connected together through the first assembling structure and the second assembling structure. The first assembly structure is arranged on the metal terminal, and the second assembly structure is arranged on the elastic sheet, so that the elastic sheet is locked in all directions after being installed on the metal terminal, and the connection firmness and stability between the metal terminal and the elastic sheet are improved while simple and convenient installation is ensured; the metal terminals and the elastic sheets can be prevented from being firmly connected and matched in the installation stage and the use stage after the metal terminals and the elastic sheets are installed in the plastic shell, the overall stability of the connector is guaranteed, the service life is prolonged, and the assembly difficulty is reduced.

Description

Technical Field

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

[0002] Plug-in connectors are electronic components used to achieve electrical connections. They are used in various electrical devices to facilitate 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 with electrical terminals to form board-to-board connections; they can also be used independently for board-to-board connections. Plug-in connectors are widely used in various fields, such as the automotive and electric vehicle industries, and various electronic equipment fields, to connect various electrical components.

[0003] As a key component in connector systems, pluggable connectors mate with mating electrical connectors through plugging and unplugging actions, enabling convenient connection and disconnection of circuits. Traditional pluggable connectors typically consist of a plastic housing, terminals embedded within the housing, and spring contacts. These components work together: the spring contacts and terminals fit tightly together to securely hold conductive elements (such as cables) that pass through the plastic housing, thereby ensuring reliable electrical signal transmission between the conductive elements and the terminals.

[0004] The existing connection between the spring and the terminal is to hang the spring on the end of the terminal used for wiring, and achieve simple limiting between the spring and the terminal by pressing the end against the terminal. Especially before and during the assembly of the assembled spring and terminal into the plastic housing, the spring can easily detach from the terminal once it is touched or squeezed, which increases the difficulty of assembling the terminal and affects the assembly efficiency. 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 connector to solve the problem of unstable connection between the spring and the terminal.

[0006] To solve the above-mentioned technical problems, the present invention provides a pluggable connector comprising a plastic housing, a terminal assembly installed inside the plastic housing, and a button installed on the plastic housing for pressing to squeeze the terminal assembly. The terminal assembly includes a metal terminal and a spring. A test hole is provided on the plastic housing opposite the position of the metal terminal. A first assembly structure is provided on the metal terminal, and a second assembly structure is provided on the spring. The metal terminal and the spring are connected together through the first and second assembly structures and are locked in all directions to prevent the terminal assembly from separating when assembled or installed inside the plastic housing, thus ensuring the stability of the terminal assembly.

[0007] Furthermore, the metal terminal includes a tight-fitting section, an assembly section connected to one end of the tight-fitting section, and a mating section connected to the other end of the tight-fitting section. The first assembly structure is formed on the assembly section, and the spring is connected to the assembly section by cooperating with the first assembly structure via the second assembly structure.

[0008] Furthermore, the assembly section includes a first arm segment extending towards a first side after bending from the tight fitting section, a second arm segment extending towards a second side away from the tight fitting section along a plugging direction from the first arm segment, and a third arm segment extending towards a third side from the second arm segment, with the end of the first arm segment away from the tight fitting section inclined towards the second side; the spring includes a first elastic section arranged parallel to the first arm segment, a curved section extending towards the first side after bending from one end of the first elastic section towards the second side, and a second elastic section extending towards the second side after bending from the curved section, with the end of the second elastic section away from the curved section inclined towards the first side; the second assembly structure includes a first connecting section extending towards the second side along a plugging direction after bending from the other end of the first elastic section, a second connecting section extending towards the third side after bending from the first connecting section, and a section opened in the first connecting section. The first assembly structure includes a through hole on the connecting section, with one end of the through hole away from the first elastic section extending to the second connecting section. The first arm segment is attached to the outer wall of the first elastic section, the second arm segment is attached to the outer wall of the first connecting section, and the third arm segment passes through the through hole and is attached to the inner wall of the second connecting section. The first assembly structure includes a protrusion protruding inward on the inner wall of the second arm segment, an intermediate connecting section bent and protruding from the middle of the third arm segment toward the fourth side, and a plurality of grooves formed on the inner wall of the intermediate connecting section. The intermediate connecting section is spaced apart from the second connecting section, and the third arm segments at both ends of the intermediate connecting section are attached to the third arm segment. The plurality of grooves are arranged at intervals along the length direction of the intermediate connecting section. The second elastic section abuts against any one of the grooves. The protrusion extends into the through hole and is located on the side of the through hole facing the first elastic section.

[0009] Furthermore, the plastic shell has a plug-in cavity, which includes a tight-fitting cavity section, an assembly cavity section located on one side of the tight-fitting cavity section and communicating with it, and a mating cavity section located on the other side of the tight-fitting cavity section and communicating with it. The tight-fitting section abuts against the tight-fitting cavity section, the assembly section and the spring are installed in the assembly cavity section, and the mating section extends into the mating cavity section. On the side of the plastic shell facing the second side, there is a first surface, and a first socket is formed on the first surface at the position corresponding to the second elastic section. The button is inserted into the first socket and abuts against the second elastic section. On the side of the plastic shell facing the fourth side, there is a second surface, and a second socket is formed on the second surface at the position corresponding to the mating cavity section.

[0010] Furthermore, the second elastic section has symmetrically protruding pressing ears on both sides of one end of the groove. The button includes a main body and pressing arms that are parallel and spaced apart from one side of the main body. The two pressing arms press against the two pressing ears respectively. The third arm section and the second connecting section are both movably inserted between the two pressing arms.

[0011] Furthermore, the plastic shell includes a first shell and a second shell, and the mating cavity section and the tight-fitting cavity section are both formed on the first shell; a first cavity communicating with the tight-fitting cavity section is formed on the surface of the first shell facing the second side, and a locking section is protruding on one side of one cavity arm of the first cavity away from the tight-fitting cavity section, and a first snap-fit ​​structure is formed on at least one other cavity wall of the first cavity, and the side of the first shell facing the fourth side is the second surface; a second cavity communicating with the fourth side is formed on the second shell, and a locking groove adapted to it is opened on the cavity wall of the second cavity corresponding to the locking section, and a second snap-fit ​​structure is formed on at least one other cavity wall of the second cavity, and a second insertion port is formed on the first shell; the first shell and the second shell are connected together by the first snap-fit ​​structure and the second snap-fit ​​structure, and the locking section is inserted into the locking groove, and the assembly cavity section is formed after the first cavity and the second cavity are connected.

[0012] Furthermore, each of the two pressing arms of the button extends to form a limiting part at the end away from the main body, and a pressing groove is formed on the side of the limiting part away from the main body. The two pressing ears are pressed against the pressing groove, and the limiting part abuts against the second side cavity wall of the second cavity.

[0013] Furthermore, on the cavity wall facing the fourth side of the first cavity and on both sides of the tightly fitted cavity section, a first support plate for supporting the curved section and a second support plate for supporting the first arm section are respectively formed.

[0014] Furthermore, a wire insertion port is formed on a first sidewall of the second cavity facing the third side, extending through the second housing along the length of the intermediate connecting section. The wire insertion port is located at one end of the second elastic section near the intermediate connecting section. A limiting secondary cavity is formed on the first sidewall for the curved section to extend into. The limiting secondary cavity is located outside the fourth side of the wire insertion port and is used to restrict the movement of the curved section toward the first side of the second cavity.

[0015] Furthermore, a positioning part is formed within the docking cavity to restrict the movement of the docking section toward the first and third sides.

[0016] The pluggable connector of this utility model has at least the following beneficial effects: by setting a first assembly structure on the metal terminal and a second assembly structure on the spring, the spring is locked in all directions after being installed on the metal terminal. While ensuring easy installation, it improves the connection firmness and stability between the metal terminal and the spring. It ensures that the metal terminal and the spring can be firmly connected and matched during the installation stage and the use stage after being installed in the plastic shell, thus ensuring the overall stability of the connector, improving its service life, and reducing the difficulty of assembly. 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 wiring connector of this utility model;

[0019] Figure 2 This is a side sectional view of the wiring connector of this utility model;

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

[0021] Figure 4 This is a schematic diagram of the structure of the first housing of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the second shell of this utility model;

[0023] Figure 6 This is a schematic diagram of the terminal assembly of this utility model;

[0024] Figure 7 This is an exploded view of the terminal assembly of this utility model;

[0025] Figure 8 This is an exploded view of the terminal assembly of this utility model from another angle.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] Plastic outer shell 1, insertion cavity 11, tight fitting cavity section 111, assembly cavity section 112, mating cavity section 113, first side wall 114, limiting secondary cavity 115, second side wall 116, first surface 121, second surface 122, first insertion port 131, second insertion port 132, test hole 133, first housing 14, insertion part 14a, assembly part 14b, first cavity 141, locking section 142, second housing 15, second cavity 151, locking groove 152, first buckle structure 16, first buckle groove 161, first snap-fit ​​part 162, first buckle 1621, second buckle structure 17, second buckle groove 171, second snap-fit ​​part 172, second buckle 1721, dividing groove 18, wire insertion port 191, connecting block 192, threaded hole 193, screw 194, first support plate 195, first support surface 19 51. Second support plate 196, second support surface 1961, positioning post 197, terminal assembly 2, metal terminal 21, tight fitting section 211, first side plate 2111, second side plate 2112, third side plate 2113, assembly section 212, first arm section 2121, second arm section 2122, third arm section 2123, butt joint section 213, elastic arm 2131, abutting point 2132, spring sheet 22, first elastic section 221, curved section 222, second elastic section 223, crimping ear 224, first assembly structure 23, protrusion 231, intermediate connecting section 232, groove 233, second assembly structure 24, first connecting section 241, second connecting section 242, through hole 243, button 3, main body 31, holding arm 32, second active space 321, limiting part 322, holding groove 323. Detailed Implementation

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

[0029] Reference Figures 1 to 8 The pluggable connector of this utility model includes a plastic housing 1, a terminal assembly 2 installed inside the plastic housing 1, and a button 3 installed on the plastic housing 1 for pressing the terminal assembly 2. The plastic housing 1 provides insulation protection and support for the terminal assembly 2. The terminal assembly 2 is used for electrical connection with the cable and mating terminal to realize the transmission of electrical signals. The button 3 is used to press the terminal assembly 2 so that the terminal assembly 2 can be used to clamp or release the cable, thereby controlling the connection of the cable.

[0030] Reference Figures 2 to 5In the illustrated embodiment, the plastic shell 1 is made of plastic and has an overall geometric structure, which can be a cubic structure or a cylindrical structure. In this embodiment, the plastic shell 1 is a cubic structure. For ease of understanding, this utility model uses a plastic shell 1 as a reference, defining the two sides along the width direction of the plastic shell 1 as the first side and the third side, and the two sides along the height direction of the plastic shell 1 as the second side and the fourth side, respectively. Figure 2 For example, the first side is the right-facing side, the second side is the top-facing side, the third side is the left-facing side, and the fourth side is the bottom-facing side. The first, second, third, and fourth sides refer only to the orientation with the center of the plastic shell 1 as the point, and do not represent a specific physical object.

[0031] In this embodiment, a insertion cavity 11 is formed within the plastic housing 1. The insertion cavity 11 corresponds to a terminal assembly 2. There may be one terminal assembly 2, and correspondingly, one insertion cavity 11. Alternatively, there may be at least two terminal assemblies 2, and correspondingly, at least two insertion cavities 11. The insertion cavities 11 are evenly spaced along the length of the plastic housing 1 to facilitate the installation of each terminal assembly 2. It should be noted that a one-to-one correspondence between the terminal assembly 2 and the insertion cavity 11 must be ensured.

[0032] In this embodiment, the insertion cavity 11 includes a tight-fitting cavity section 111, an assembly cavity section 112 located on one side of the tight-fitting cavity section 111 and communicating with it, and a mating cavity section 113 located on the other side of the tight-fitting cavity section 111 and communicating with it. The tight-fitting cavity section 111 facilitates the tight fitting of the terminal assembly 2 therein, and cooperates with the terminal assembly 2 to limit its position. The mating cavity section 113 facilitates the cooperation of the terminal assembly 2 with the mating connector and is used for insertion with the mating connector. The assembly cavity section 112 facilitates the cooperation of the terminal assembly 2 and the button 3 for wiring. In this embodiment, the side of the plastic shell 1 facing the second side is defined as the first surface 121, and the side of the plastic shell 1 facing the fourth side is defined as the second surface 122. That is, the first surface 121 and the second surface 122 are respectively located on opposite sides along the height of the plastic shell 1, and both the first surface 121 and the second surface 122 refer to the outer surface of the plastic shell 1. A first socket 131 is provided on the first surface 121 at a position directly opposite the insertion cavity 11 along the height direction. The number of first sockets 131 corresponds to the number of insertion cavities 11. Each insertion cavity 11 has one first socket 131, and the first socket 131 is connected to the insertion cavity 11. The button 3 is inserted into the first socket 131. A second socket 132 is provided on the second surface 122 at a position directly opposite the insertion cavity 11 along the height direction. The number of second sockets 132 corresponds to the number of insertion cavities 11. Therefore, each insertion cavity 11 has one second socket 132, and the second socket 132 is connected to the insertion cavity 11. It should be noted that the second socket 132 is used for the mating terminals of the mating connector to pass through a through-hole into the insertion cavity 11 and mate with the terminal assembly 2.

[0033] In this embodiment, to facilitate the installation of the terminal assembly 2 and the button 3, the plastic housing 1 includes a separate first housing 14 and a second housing 15. The mating cavity section 113 and the fitting cavity section 111 are both formed on the first housing 14, and the assembly cavity section 112 is formed by the first housing 14 and the second housing 15 together. In this embodiment, the first housing 14 and the second housing 15 are separated along the height direction of the plastic housing 1, with the first housing 14 relatively distributed on the side facing the fourth side, and the second housing 15 located outside the second side of the first housing 14 relative to the first housing 14. The mating cavity section 113 is located on the side of the fitting cavity section 111 facing the fourth side relative to the fitting cavity section 111. Therefore, the side of the first housing 14 facing the fourth side (i.e., the side of the first housing 14 away from the second housing 15) is the second surface 122, and the side of the second housing 15 facing the second side (i.e., the side of the second housing 15 away from the first housing 14) is the first surface 121. The first housing 14 and the second housing 15 can be detachably connected, for example, by threading together through threaded holes 193 on the first housing 14 and the second housing 15 respectively. Alternatively, the first housing 14 and the second housing 15 can be snap-fit ​​connected, for example, by providing a first snap-fit ​​structure 16 on the side of the first housing 14 facing the second housing 15 and a second snap-fit ​​structure 17 on the side of the second housing 15 facing the first housing 14, thereby connecting or separating the first housing 14 and the second housing 15 together through the first snap-fit ​​structure 16 and the second snap-fit ​​structure 17.

[0034] A first cavity 141, communicating with the tight-fitting cavity section 111, is recessed on the surface of the first housing 14 facing the second side (i.e., the side of the first housing 14 facing the second housing 14). Therefore, the first cavity 141 is open towards the second side. The first cavity 141, the tight-fitting cavity section 111, and the mating cavity section 113 are sequentially distributed along the height direction. A second insertion port 132 is formed on the first housing 14. A locking section 142 protrudes from one of the cavity arms of the first cavity 141, located on the side of the cavity wall away from the tight-fitting cavity section 111. The locking section 142 protrudes towards the second side and has a sheet-like structure; the locking section 142 can be square or wedge-shaped. The first snap-fit ​​structure 16 is formed on at least one other cavity wall of the first cavity 141. To facilitate use with multiple insertion cavities 11, a locking section 142 is provided on one side of the cavity wall of the first cavity 141 along the length direction of the plastic outer shell 1, while a first latching structure 16 is formed on at least one side of the cavity wall of the first cavity 141 along the width direction of the plastic outer shell 1 (hereinafter referred to as the "width direction"). Preferably, the first latching structure 16 is provided on both sides of the first cavity 141 along the width direction. The first latching structure 16 includes a first latching groove 161 and a first engaging member 162, which are respectively provided on the two side cavities of the first cavity 141 along the width direction, and the first latching groove 161 penetrates through the cavity wall of the first cavity 141 along the width direction. The first engaging member 162 is formed by dividing the cavity wall of the first cavity 141. The first engaging member 162 faces the first slot 161 along its width. Dividing grooves 18 are formed on both sides of the first engaging member 162 along the length of the plastic outer shell 1 (hereinafter referred to as the "length direction"), extending along the width direction. These dividing grooves 18 extend towards the second side along the height direction, thus separating the first engaging member 162 from the other side walls of the first cavity 141. A first latch 1621 protrudes from the side of the first engaging member 162 away from the first slot 161. The first latch 1621 has a wedge-shaped structure and a guide bevel. It should be noted that the second insertion port 132 is formed on the second surface 122 of the first housing 14, and the number of second insertion ports 132 corresponds one-to-one with the number of insertion cavities 11. Each second insertion port 132 connects to the mating cavity section 113 along the height direction.

[0035] In this embodiment, the first housing 14 has a plug-in portion 14a and an assembly portion 14b. The plug-in portion 14a is narrower than the assembly portion 14b. A mating cavity section 113 and a tight-fitting cavity section 111 are both formed within the plug-in portion 14a. A second surface 122 is located on the plug-in portion 14a. The assembly portion 14b is wider than the plug-in portion 14a and is located on the second side of the plug-in portion 14a. A first cavity 141 and a first snap-fit ​​structure 16 are both formed on the assembly portion 14b. The plug-in portion 14a is used to insert into the corresponding slot structure of the mating connector when mated with it. The assembly portion 14b limits the insertion depth of the plug-in portion 14a. The width of the second housing 15 is adapted to the width of the assembly portion 14b.

[0036] A second cavity 151 is formed on the second housing 15, extending through the second housing 15 towards the first side. The position and number of the second cavities 151 correspond to those of the first cavities 141. A matching locking groove 152 is formed on one side wall of the second cavity 151 corresponding to the locking section 142; that is, the locking groove 152 is formed on one of the cavity walls of the second cavity 151 along its length. The shape of the locking groove 152 matches the shape of the locking section 142. The locking groove 152 extends through the fourth side along the height direction and is open along the length direction towards the second cavity 151. A first insertion port 131 is formed on the first surface 121 of the second housing 15, and the first insertion port 131 connects to the second cavity 151 along the fourth side along the height direction. When the first housing 14 and the second housing 15 are installed, the locking segment 142 is aligned with the locking groove 152 and is gradually inserted into the locking groove 152 during installation, thereby ensuring quick alignment and positioning between the first housing 14 and the second housing 15 for easy installation. A second snap-fit ​​structure 17 is formed on at least one other cavity wall of the second cavity 151. The second snap-fit ​​structure 17 is larger than the first snap-fit ​​structure 16. Therefore, the second snap-fit ​​structure 17 is disposed on the cavity walls of the second cavity 151 along its width direction. The second snap-fit ​​structure 17 includes a second slot 171 and a second engaging member 172. The second slot 171 and the second engaging member 172 are disposed on the two side cavity walls of the second cavity 151 along its width direction, and the second slot 171 penetrates through the cavity wall of the second cavity 151 along its width direction. The second engaging member 172 is formed by dividing the cavity wall of the second cavity 151. The second engaging member 172 faces the second slot 171 along its width direction. On both sides of the second engaging member 172 along its length direction, dividing grooves 18 are formed, extending through the width direction and extending towards the second side along the height direction, so that the second engaging member 172 is spaced apart from the other side walls of the second cavity 151. A second latch 1721 protrudes from the side of the second engaging member 172 away from the second slot 171. The second latch 1721 has a wedge-shaped structure and a guide slope. In the height direction, the second engaging member 172 faces the first slot 161, and the second slot 171 faces the first engaging member 162. In this embodiment, a cable insertion port 191 is formed on one side wall of the second cavity 151, penetrating the second housing 15. A cable passes through the cable insertion port 191 into the second cavity 151 and connects to the terminal assembly 2. Connecting blocks 192 are integrally connected to the outer walls on both sides along the length direction of the second housing 15. Threaded holes 193 are opened on the connecting blocks 192 along the height direction. Screws 194 are screwed into the threaded holes 193 to further connect with the mating connector and improve the firmness.

[0037] During assembly, the first housing 14 is moved toward the second housing 15 along the height direction. After the locking section 142 aligns with the locking groove 152, it continues to move. During the movement, the first locking member 162 and the second locking member 172 extend into the second cavity 151. The first buckle 1621 and the second buckle 1721 are squeezed by the cavity wall until the second housing 15 stops against the assembly part 14b. At this time, the locking section 142 extends into the locking groove 152, the first buckle 1621 on the first locking member 162 is locked into the second locking groove 171, and the second buckle 1721 on the second locking member 172 is locked into the first locking groove 161. In this way, the connection between the first housing 14 and the second housing 15 is realized. The first cavity 141 and the second cavity 151 are combined to form the assembly cavity section 112 after the assembly is completed. It should be noted that the first socket 131 is formed on the first surface 121 of the second housing 15, and the number of the first sockets 131 corresponds one-to-one with the number of the insertion cavities 11. Each first socket 131 is connected to the assembly cavity section 112 along the height direction.

[0038] Reference Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 In this embodiment, the terminal assembly 2 includes a metal terminal 21 and a spring contact 22, both made of conductive metal material, such as copper. The metal terminal 21 has a first assembly structure 23, and the spring contact 22 has a second assembly structure 24. The metal terminal 21 and the spring contact 22 are connected together through the first assembly structure 23 and the second assembly structure 24, locking the movement of the metal terminal 21 and the spring contact 22 in all directions. This improves the connection strength between the metal terminal 21 and the spring contact 22, preventing the terminal assembly 2 from easily loosening during installation or use.

[0039] The metal terminal 21 includes a mating section 211, an assembly section 212 connected to one end of the mating section 211, and a mating section 213 connected to the other end of the mating section 211. The assembly section 212, the mating section 211, and the mating section 213 are sequentially distributed along the height direction. The assembly section 212 is located on the second side of the mating section 211, and the mating section 213 is located on the fourth side of the mating section 211. A first assembly structure 23 is formed on the assembly section 212, and a spring piece 22 is connected to the assembly section 212 by cooperating with the first assembly structure 23 via a second assembly structure 24. The mating section 211 abuts against the mating cavity section 111, the assembly section 212 and the spring piece 22 are both installed in the assembly cavity section 112, the mating section 213 extends into the mating cavity section 113, the button 3 abuts against the spring piece 22 along the height direction, and the mating section 213 corresponds to the second socket 132 for mating with the mating connector to achieve insertion.

[0040] In this embodiment, the fitting section 211 includes a first side plate 2111, a second side plate 2112, and a third side plate 2113. The second side plate 2112 and the third side plate 2113 are respectively connected to the two sides of the first side plate 2111 along the width direction to form an overall U-shape. The fitting cavity section 111 has a square cavity structure. During assembly, the second side plate 2112 and the third side plate 2113 abut against the two sides of the cavity wall of the fitting cavity section 111, while the first side plate 2111 can contact the inner wall of the fitting cavity section 111, thereby realizing the fit between the fitting section 211 and the fitting cavity section 111.

[0041] In this embodiment, the assembly section 212 includes a first arm section 2121 extending toward a first side after the second side plate 2112 of the self-tightening section 211 is bent; a second arm section 2122 extending toward a second side along a plugging direction from the end of the first arm section 2121 away from the tightening section 211; and a third arm section 2123 extending toward a third side from the end of the second arm section 2122 away from the first arm section 2121. The end of the first arm section 2121 away from the tightening section 211 is inclined toward the second side, so that the overall shape of the assembly section 212 is similar to a U-shape. The entire assembly section 212 is used to be installed in the assembly cavity section 112. The U-shaped structure facilitates the fitting of the spring piece 22 and increases the contact area. The connection points between the second side plate 2112 and the first arm section 2121, the connection points between the first arm section 2121 and the second arm section 2122, and the connection points between the second arm section 2122 and the third arm section 2123 are all bending points. In the embodiment shown, the first assembly structure 23 includes a protrusion 231 protruding inward on the inner sidewall of the second arm segment 2122, an intermediate connecting section 232 bent and protruding from the middle of the third arm segment 2123 toward the fourth side, and a plurality of grooves 233 formed on the inner sidewall of the intermediate connecting section 232. The protrusion 231 is the inner side of the second arm segment 2122 toward the third side and the outer side toward the first side. The length direction of each groove 233 is arranged along the length direction of the plastic shell 1, and the plurality of grooves 233 are arranged at intervals along the length direction of the intermediate connecting section 232, the length direction of the intermediate connecting section 232 being the width direction of the plastic shell 1.

[0042] In this embodiment, the spring piece 22 includes a first elastic section 221 arranged parallel to the first arm section 2121, a curved section 222 that bends from one end of the first elastic section 221 toward the third side toward the second side and then continues to bend toward the first side, and a second elastic section 223 that bends from one end of the curved section 222 away from the first elastic section 221 and extends toward the second side, with the end of the second elastic section 223 away from the curved section 222 inclined toward the first side. A crimping lug 224 is symmetrically protruded on both sides of the second elastic section 223 away from the curved section 222, along its length direction, to facilitate the button 3 pressing the spring piece 22.

[0043] During assembly, the first elastic section 221 is fitted against the inner wall of the first arm section 2121, that is, the first elastic section 221 is fitted against the side of the first arm section 2121 facing the second side. The first arm section 2121 supports the first elastic section 221. The curved section 222 facilitates the positional change of the second elastic section 223 after being pressed. The end of the second elastic section 223 away from the curved section 222 is pressed against any groove 233. The groove 233 is used to restrict the movement of the second elastic section 223 in the width direction to a certain extent, and restricts the movement of the spring piece 22 in the height direction through the cooperation between the intermediate connecting section 232 and the first arm section 2121, that is, restricts the movement of the spring piece 22 towards the second and fourth sides. Among them, the end of the first elastic section 221 facing the third side extends relative to the tight fitting section 211 beyond the tight fitting section 211 facing the third side, so that the curved section 222 is located outside the range enclosed by the assembly section 212.

[0044] In this embodiment, the second assembly structure 24 includes a first connecting section 241 extending towards the second side in the insertion direction after being bent from the other end of the first elastic section 221 (i.e., the end of the first elastic section 221 facing the first side), a second connecting section 242 extending towards the third side after being bent from the end of the first connecting section 241 away from the first elastic section 221, and a through hole 243 formed on the first connecting section 241. The end of the through hole 243 away from the first elastic section 221 is formed to the second connecting section 242, so that the through hole 243 penetrates the first connecting section 241 in the width direction. The width of the third arm section 2123 is smaller than the width of the through hole 243 so that the third arm section 2123 can pass through the through hole 243.

[0045] During assembly, the first arm segment 2121 is attached to the outer wall of the first elastic section 221, the second arm segment 2122 is attached to the outer wall of the first connecting section 241, and the third arm segment 2123 passes through the through hole 243 along the width direction and is attached to the inner wall of the second connecting section 242. That is, the first arm segment 2121 is attached to the side of the first elastic section 221 facing the first side, and the third arm segment 2123 is attached to the side of the second connecting section 242 facing the second side, so that the first connecting section 241, the first elastic section 221, etc. are all located inside the assembly section 212, while the second connecting section 242 is located outside the third arm segment 2123. After assembly, due to the elastic properties of the metal terminal 21 and the spring 22, the second elastic section 223 presses against any groove 233 and presses against the intermediate connecting section 232. Under the compression of the second elastic section 223 and the elastic properties of the third arm section 2123, the third arm section 2123 presses against the second connecting section 242, and the first elastic section 221 presses against the first arm section 2121. That is, the intermediate connecting section 232 is spaced apart from the second connecting section 242. The third arm sections 2123 at both ends of the intermediate connecting section 232 are all attached to the third arm section 2123. The protrusion 231 extends into the through hole 243 and is located on the side of the through hole 243 facing the first elastic section 221. Thus, the fit between the through hole 243 and the third arm segment 2123 restricts the freedom of the spring piece 22 and the metal terminal 21 in the length direction (the length direction of the plastic shell 1). The protrusion 231 restricts the end of the second arm segment 2122 away from the third arm segment 2123 so that it cannot deflect or sway in the length direction, thereby improving the stability of the second arm segment 2122 between the first connecting section 241. The engagement of the protrusion 231 and the through hole 243 causes the protrusion 231 to abut against the side of the through hole 243 facing the fourth side, thereby restricting the movement of the spring piece 22 towards the second side and the movement of the metal terminal 21 towards the fourth side. The second connecting section 242 restricts the movement of the metal terminal 21 towards the second side, and the first arm section 2121 restricts the movement of the spring piece 22 towards the fourth side. The first connecting section 241 restricts the movement of the metal terminal 21 towards the third side, and the engagement of the second elastic section 223 and the groove 233 restricts the movement of the metal terminal 21 towards the first side to a certain extent. The second arm section 2122 restricts the movement of the spring piece 22 towards the first side, and the engagement of the groove 233 and the second elastic section 223 restricts the movement of the spring piece 22 towards the third side. This achieves omnidirectional limiting between the spring piece 22 and the metal terminal 21, ensuring that the terminal assembly 2 maintains connection stability and firmness both during assembly and during use after assembly, preventing the terminal assembly 2 from loosening and increasing assembly difficulty.

[0046] In this embodiment, the mating section 213 includes two elastic arms 2131. One end of each elastic arm 2131 is integrally connected to the side of the second side plate 2112 and the third side plate 2113 facing the fourth side, and the two elastic arms 2131 are symmetrically distributed. The two elastic arms 2131 extend obliquely towards each other along the height direction from the mating section 211, then bend and continue to extend and bend away from each other, so that the two elastic arms 2131 form abutment points 2132 at the bends. The mating section 213 clamps the mating terminals by engaging with the mating terminals of the mating connector through the abutment points 2132. The abutment points 2132 are positioned directly opposite the second insertion port 132 along the height direction.

[0047] In the illustrated embodiment, a first support plate 195 for supporting the curved section 222 and a second support plate 196 for supporting the first arm section 2121 are respectively formed on the cavity wall of the first cavity 141 facing the fourth side and on both sides of the tight-fitting cavity section 111. The first support plate 195 and the second support plate 196 are respectively disposed on both sides of the tight-fitting cavity section 111 along the width direction. The first support plate 195 has a first support surface 1951 parallel to the first arm section 2121 on the side facing the second side, and the second support plate 196 has a second support surface 1961 on the side facing the second side that matches the contour of the curved section 222 and the first elastic arm 2131 connected to the end of the curved section 222. Preferably, the opposing sides of the first support plate 195 and the second support plate 196 are flush with the cavity wall of the tight-fitting cavity section 111 that is close to it, so that the tight-fitting cavity section 111, together with the first housing 14, is used as part of the tight-fitting cavity section 111 for tight fitting with the tight-fitting section 211.

[0048] During assembly, the first arm segment 2121 abuts against the first support surface 1951, the end of the first elastic segment 221 facing the third side and the curved segment 222 abut against the second support surface 1961 to support it, restricting the terminal assembly 2 from continuing to move toward the fourth side, and the first support plate 195 and the second support plate 196 are specially provided for support to save materials.

[0049] The assembly method of the terminal assembly 2 and the plastic shell 1 of this utility model is as follows: First, the terminal assembly 2 is assembled. Then, the mating section 213 is aligned with the fitting cavity section 111. The terminal assembly 2 is moved towards the fourth side along the height direction so that the mating section 213 passes through the fitting cavity section 111 and enters the mating cavity section 111. The second side plate 2112 and the third side plate 2113 of the fitting section 211 are both pressed against the cavity wall of the fitting cavity section 111 until the first arm section 2121 abuts against the first support surface 1951 and the curved section 222 abuts against the second support surface. On surface 1961; then, align the second housing 15 with the first housing 14, so that the first socket 131 corresponds to the position of the second elastic section 223. Move the second housing 15 towards the first housing 14 along the height direction, so that the assembly section 212 and the spring piece 22 gradually extend into the second cavity 151. The first engaging member 162 and the second engaging member 172 are squeezed and deformed inward until the first latch 1621 is engaged in the second slot 171 and the second latch 1721 is engaged in the first slot 161, thus completing the assembly of the terminal assembly 2 and the plastic housing 1. After assembly, the first socket 131 is directly opposite the end of the second elastic section 223 away from the curved section 222 along the height direction, and the wire port 191 is directly opposite the end of the second elastic section 223 near the middle connecting section 232.

[0050] To further constrain the terminal assembly 2 after assembly, the cavity wall of the second cavity 151 facing the third side is defined as a first sidewall 114. A wire inlet 191 is formed on the first sidewall 114 and extends through the second housing 15 along the length of the intermediate connecting section 232. A limiting secondary cavity 115 is formed on the first sidewall 114 for the curved section 222 to extend into. The limiting secondary cavity 115 is located outside the fourth side of the wire inlet 191 and is used to restrict the movement of the curved section 222 towards the first side of the second cavity 151. The inner cavity arm of the limiting secondary cavity 115 is L-shaped, with an opening towards the first side and an opening towards the first side. During assembly, the second housing 15 gradually approaches the first housing 14, causing the limiting secondary cavity 115 to be positioned outside the second and third sides of the curved section 222, thereby restricting the movement of the curved section 222 and making the terminal assembly 2 more stable after being installed inside the plastic housing 1. In this embodiment, a positioning part is formed within the docking cavity 113 to restrict the movement of the docking section 213 toward the first and third sides. The positioning part includes two positioning posts 197, which are disposed along the length direction on the inner wall of the docking cavity 113 toward the fourth side, and are disposed on both sides of the second insertion port 132 along the length direction of the plastic shell 1. A first movable space is reserved between the two positioning posts 197 for the docking terminal to pass through. The width of the two elastic arms 2131 is widened so that the two abutment points 2132 abut against the two positioning posts 197, so that the two elastic arms 2131 cannot move toward the first or third side in the width direction, and prevent the elastic arms 2131 from tilting after installation, which would affect the mating of the docking terminal.

[0051] To test whether the terminal assembly 2 is energized after assembly, a test hole 133 is provided on the plastic housing 1 at the position corresponding to the metal terminal 21. The test hole 133 can be provided on the first housing 14 or the second housing 15. In this embodiment, the test hole 133 is provided on the first surface 121 and communicates with the second cavity 151. The number and position of the second test holes 133 correspond to those of the second cavity 151. When testing is required, a testing instrument is inserted through the test hole 133 and contacts the terminal assembly 2 to perform an electrical test.

[0052] Please refer to Figure 1 , Figure 2 and Figure 3In this embodiment, the button 3 includes a main body 31 and two parallel and spaced-apart pressing arms 32 from one side of the main body 31, so that the button 3 is U-shaped. The two pressing arms 32 respectively press against the two pressing ears 224 of the second elastic section 223. There is a second movable space 321 between the two pressing arms 32. The third arm section 2123 and the second connecting section 242 are both movable into the second movable space 321 between the two pressing arms 32 to avoid the third arm section 2123 and the second connecting section 242 affecting the use of the button 3. The two pressing arms 32 of the button 3 each extend to form a limiting part 322 at the end away from the main body 31. The limiting part 322 extends backward along both sides in the width direction so that the length of the limiting part 322 in the width direction is greater than the length of the first insertion port 131 in the width direction. The cavity wall of the second cavity 151 facing the second side is limited to the second side wall 116, and the side of the limiting part 322 facing the second side abuts against the second side wall 116. A retaining groove 323 is formed on the side of the limiting part 322 away from the main body 31, and two pressing ears are used to press against the retaining groove 323. The limiting part 322 abuts against the second side wall 116 of the second cavity 151.

[0053] One assembly method of the button 3 of this utility model is as follows: First, insert one end of the button 3 body 31 into the first socket 131 until the limiting part 322 abuts against the second side wall 116 on the side facing the second side. Before or after this, install the terminal assembly 2 on the first housing 14. Then assemble the first housing 14 and the second housing 15. After assembly, the third arm section 2123 and the second connecting section 242 are inserted into the second active space 321, and the two crimping ears 224 abut against the crimping groove 323.

[0054] In use, press button 3 along the height direction toward the fourth side. Button 3 moves toward the fourth side and squeezes the crimping ear 224 to form a clamp between the second elastic section 223 and the intermediate connecting section 232 for holding the cable. The cable is inserted into the clamp through the plug port 191. After releasing button 3, the second elastic section 223 rebounds and presses against the cable. At this time, the groove 233 increases the fastening force between the cable and the intermediate connecting section 232, improving the connection stability.

Claims

1. A pluggable connector, comprising a plastic housing, a terminal assembly mounted within the plastic housing, and a button mounted on the plastic housing for pressing to compress the terminal assembly, wherein the terminal assembly includes a metal terminal and a spring contact, and a test hole is provided on the plastic housing opposite the position of the metal terminal, characterized in that: The metal terminal is provided with a first assembly structure, and the spring is provided with a second assembly structure. The metal terminal and the spring are connected together through the first assembly structure and the second assembly structure, and the movement of the metal terminal and the spring is locked in all directions.

2. The pluggable connector as described in claim 1, characterized in that: The metal terminal includes a mating section, an assembly section connected to one end of the mating section, and a mating section connected to the other end of the mating section. The first assembly structure is formed on the assembly section, and the spring is connected to the assembly section by cooperating with the first assembly structure via a second assembly structure.

3. The pluggable connector as described in claim 2, characterized in that: The assembly section includes a first arm section extending toward a first side after bending from the tight fitting section, a second arm section extending toward a second side away from the tight fitting section along a plugging direction from the first arm section, and a third arm section extending toward a third side from the second arm section, wherein the end of the first arm section away from the tight fitting section is inclined toward the second side. The spring includes a first elastic section parallel to the first arm segment, a curved section that bends from one end of the first elastic section toward the second side and then continues to bend toward the first side, and a second elastic section that extends toward the second side after being bent from the curved section, with the end of the second elastic section away from the curved section inclined toward the first side. The second assembly structure includes a first connecting section that extends toward the second side along the insertion direction after being bent from the other end of the first elastic section, a second connecting section that extends toward the third side after being bent from the first connecting section, and a through hole opened on the first connecting section. The end of the through hole away from the first elastic section is opened to the second connecting section. The first arm segment is attached to the outer wall of the first elastic section, the second arm segment is attached to the outer wall of the first connecting section, and the third arm segment passes through the through hole and is attached to the inner wall of the second connecting section. The first assembly structure includes a protrusion protruding inward on the inner wall of the second arm segment, an intermediate connecting section bent and protruding from the middle of the third arm segment toward the fourth side, and a plurality of grooves formed on the inner wall of the intermediate connecting section. The intermediate connecting section is spaced apart from the second connecting section, and the third arm segments at both ends of the intermediate connecting section are attached to the third arm segment. The plurality of grooves are arranged at intervals along the length direction of the intermediate connecting section. The second elastic section abuts against any one of the grooves. The protrusion extends into the through hole and is located on the side of the through hole facing the first elastic section.

4. The pluggable connector as described in claim 3, characterized in that: The plastic housing has a plug-in cavity, which includes a tight-fitting cavity section, an assembly cavity section located on one side of the tight-fitting cavity section and communicating with it, and a mating cavity section located on the other side of the tight-fitting cavity section and communicating with it. The tight-fitting section abuts against the tight-fitting cavity section, the assembly section and the spring are installed in the assembly cavity section, and the mating section extends into the mating cavity section. On the side of the plastic housing facing the second side, there is a first surface, and a first socket is opened on the first surface at the position corresponding to the second elastic section. The button is inserted into the first socket and abuts against the second elastic section. On the side of the plastic housing facing the fourth side, there is a second surface, and a second socket is opened on the second surface at the position corresponding to the mating cavity section.

5. The pluggable connector as described in claim 4, characterized in that: The second elastic section has symmetrically protruding pressing ears on both sides of one end of the groove. The button includes a main body and pressing arms that are parallel and spaced apart from one side of the main body. The two pressing arms press against the two pressing ears respectively. The third arm section and the second connecting section are both movably inserted between the two pressing arms.

6. The pluggable connector as described in claim 5, characterized in that: The plastic outer shell includes a first shell and a second shell, and the mating cavity section and the tight-fitting cavity section are both formed on the first shell; A first cavity is formed on the surface of the first housing facing the second side, which is connected to the tight-fitting cavity section. A locking section is protruded on one side of one cavity arm of the first cavity away from the tight-fitting cavity section. A first buckling structure is formed on at least one other cavity wall of the first cavity. The side of the first housing facing the fourth side is the second surface. The second housing has a second cavity extending toward the fourth side. A matching locking groove is provided on one side wall of the second cavity corresponding to the locking section. A second snap-fit ​​structure is formed on at least one other cavity wall of the second cavity. The second insertion port is formed on the first housing. The first housing and the second housing are connected together by a first snap-fit ​​structure and a second snap-fit ​​structure, and the snap-fit ​​section is inserted into the snap-fit ​​groove. The first cavity and the second cavity are connected to form the assembly cavity section.

7. The pluggable connector as described in claim 6, characterized in that: The two pressing arms of the button extend to form a limiting part at the end away from the main body. A pressing groove is formed on the side of the limiting part away from the main body. The two pressing ears are pressed against the pressing groove. The limiting part abuts against the second side wall of the second cavity.

8. The pluggable connector as described in claim 6, characterized in that: On the cavity wall facing the fourth side of the first cavity, and on both sides of the tightly fitted cavity section, there are respectively a first support plate for supporting the curved section and a second support plate for supporting the first arm section.

9. The pluggable connector as described in claim 8, characterized in that: A wire insertion port is formed on a first sidewall of the second cavity facing the third side, extending through the second housing along the length of the intermediate connecting section. The wire insertion port is located at one end of the second elastic section near the intermediate connecting section. A limiting secondary cavity is formed on the first sidewall for the curved section to extend into. The limiting secondary cavity is located outside the fourth side of the wire insertion port and is used to restrict the movement of the curved section toward the first side of the second cavity.

10. The pluggable connector as described in claim 6, characterized in that: The docking cavity has a positioning part formed therein to restrict the movement of the docking section toward the first side and the third side.

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