Pluggable terminal block and pluggable terminal block assembly

Abstract

The utility model relates to the technical field of electric connectors, and discloses a plug-in type wiring terminal block and a plug-in type wiring terminal block assembly, which comprise a terminal block body and a fixing piece used for being fixed with a butting connector, and are characterized in that the outer side wall of the terminal block body is provided with a first end wall and a second end wall which are oppositely distributed; inserting parts and fastening parts are formed on the first end wall and the second end wall, the number of the fixing pieces is two, the fixing pieces are inserted into the two inserting parts in the inserting direction, and the fastening parts are used for fastening the fixing pieces installed on the inserting parts. Through the arrangement of the fastening part, the fixing piece abuts against one end of the fixing piece towards one side far away from the terminal block body when the fixing piece is inserted into the insertion part, so that the fixing piece forms a lever principle and the other end of the fixing piece inclines towards one side of the terminal block body, and therefore, a buckling structure of a butting connector can be buckled with the terminal block body conveniently; the inclined fixing piece abuts against the inserting part so as to fasten the fixing piece and prevent the fixing piece from shaking and being not firm.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially relates to a plug -in wiring terminal board and plug -in wiring terminal board assembly. BACKGROUND

[0002] The plug-in wiring terminal board is an electronic component for realizing electrical connection, is applied to various power connection equipment, is convenient for wiring, and plays a connecting bridge function between the broken place in the circuit or the independent circuit that does not communicate, and undertakes the task of current or signal transmission;Or matched with the beam terminal to constitute the board-to-wire connection;Also can be independently used for board-to-board connection. The plug-in wiring terminal board is widely applied in various fields, such as the motor vehicle field of automobile, electric vehicle and the like, and the electronic equipment field and the like for connecting various electrical components.

[0003] The plug-in wiring terminal board is a key component in the connector system, which cooperates with the mating connector through plug-in action to realize the convenient connection and disconnection of the circuit. The traditional plug-in wiring terminal board is usually composed of a plastic shell, a terminal built in the plastic shell and a spring piece. These components work together: the spring piece and the terminal are closely matched to firmly clamp the conductive element (such as cable) inserted into the plastic shell, thereby ensuring reliable electrical signal transmission between the conductive element and the terminal.

[0004] The existing plug-in wiring terminal board is connected with the mating connector. In order to increase the connection stability and firmness between the plug-in wiring terminal board and the mating connector, a fixing piece is usually provided on the plastic shell. The fixing piece is inserted on the plastic shell by setting a card needle structure on the fixing piece, and a clasp structure is provided on the fixing piece to make the mating connector on the plug-in wiring terminal board when the plug-in wiring terminal board is inserted, so that the clasp structure on the mating connector is clamped therein to increase the connection firmness. However, the card needle structure is only inserted into the groove provided on the plastic shell, and no other restrictions are made, which leads to unstable use of the fixing piece and easy shaking, thereby affecting the connection stability between the plug-in wiring terminal board and the mating connector. UTILITY MODEL CONTENTS

[0005] In view of the above problems of the prior art, the utility model solves the problem of unstable fixing piece by providing a plug-in wiring terminal board and a plug-in wiring terminal board assembly.

[0006] To solve the above technical problems, one technical scheme of the utility model is: provide a plug-in wiring terminal board including terminal board body and the fixed part for being used for fixed with the opposite connector, its characterized in be: the first end wall and the second end wall of opposite distribution have on the outside wall of terminal board body, form the insertion part and the fastening part on the first end wall and the second end wall, the fixed part is set to two and respectively along the plug-in direction inserts in two insertion parts, the fastening part is used for fastening the fixed part installed on the insertion part.

[0007] Further, the fastening part and the insertion part are spaced apart and distributed on the corresponding end wall along the plug-in direction, and are both convex on the corresponding end wall; the insertion part is closer to the direction of the opposite connector, and the fastening part is farther away from the direction of the opposite connector; when the fixed part is inserted into the insertion part, the inner side surface of the end of the fixed part away from the opposite connector is inclined outward under the action of the fastening part, and the inner side wall of the end of the fixed part close to the opposite connector is inclined inward under the action of the fastening part, so that the part inserted into the insertion part is tightly fitted with the insertion part.

[0008] Further, each of the fixed parts includes a base, a clamping pin portion formed on the base and used for being inserted into the insertion part, and a clamping portion formed on the base and used for being connected with the opposite connector; when the clamping pin portion is installed on the insertion part, the inner side surface of the base or the part close to the base of the fixed part abuts on the fastening part, and the inner side surface of the clamping portion or the part close to the clamping portion of the fixed part is inclined inward, so that the clamping pin is tightly fitted in the insertion part.

[0009] Further, the clamping portion includes two elastic arms extending from the base in the same direction and two clamping arms respectively connected to the ends of the two elastic arms away from the base, and the clamping pin portion is located between the two elastic arms; when the clamping pin portion is inserted into the insertion part, the outer side surface of the fastening part abuts against the inner side surface of the end of the two elastic arms close to the base, so that one end of the clamping arm is inclined toward the side close to the terminal board body to make the clamping pin portion abut against the insertion part, and a clamping space connected with the opposite connector is formed between the clamping arm, the elastic arm and the insertion part.

[0010] Further, each of the two fastening parts includes two convex blocks, and each convex block on the first end wall and the second end wall is used for abutting against the end of each elastic arm close to the base when the clamping pin portion is installed on the insertion part.

[0011] Further, the end of each of the elastic arm and the clamping pin portion close to the base is bent toward the side away from the terminal board body to form a bent segment for being spaced apart from the terminal board body when being installed on the terminal board body, and the base is connected to the bent segment.

[0012] Further, two elastic arms of each fixing member are formed with limiting ends at the end away from the base for limiting the insertion depth of the terminal block body into the mating connector.

[0013] Further, the two insertion portions each comprise an insertion block integrally connected to the first end wall and the second end wall respectively, and an insertion hole formed in the insertion block in the insertion direction; the clamping portion comprises a connecting segment connected to the base and located between the two elastic arms, and an insertion segment extending from the connecting segment towards the clamping portion and narrower than the connecting segment, the insertion segment being used for insertion into the insertion hole, and the two sides of the insertion block being respectively abutted against the inner sides of the two limiting ends.

[0014] Further, the base is provided with a holding end and two abutting ends spaced from the clamping portion; the first end wall and the second end wall are each provided with a limiting block for blocking the abutting end after the insertion segment is inserted into the insertion hole to limit the movement of the fixing member towards the side away from the insertion hole.

[0015] Further, the terminal block body comprises a plastic shell, a terminal assembly mounted in the plastic shell, and a button mounted on the plastic shell and used for pressing the terminal assembly, the first end wall and the second end wall being formed on the plastic shell; the terminal assembly comprises a metal terminal and a spring piece, the metal terminal having a clamping end for cooperation with a mating terminal and an assembly end; the assembly end comprises a first side plate integrally connected to the clamping end in the insertion direction, a second side plate extending perpendicularly from one side of the first side plate, and a connecting portion extending perpendicularly from the second side plate; the connecting portion comprises a third side plate extending perpendicularly from one side of the second side plate away from the first side plate and in the same direction as the first side plate, a fourth side plate extending from one side of the second side plate away from the first side plate in a second direction, a fifth side plate extending perpendicularly from one side of the fourth side plate away from the first side plate and in the same direction as the third side plate, and a sixth side plate extending perpendicularly from one side of the second side plate away from the third side plate in the insertion direction and in the same direction as the third side plate, the first side plate being formed with a plurality of grooves, a first end of the spring piece being abutted against the grooves, the third side plate and the sixth side plate each having a first abutment surface flush in the insertion direction, the fifth side plate having a second abutment surface facing the first abutment surface, a limiting space being formed between the first abutment surface and the second abutment surface for a second end of the spring piece to pass into in the insertion direction, and a clamping groove being recessed on the first end for buckling on the fifth side plate, the fifth side plate being T-shaped.

[0016] The utility model also provides a plug-in wiring terminal block assembly which comprises a plurality of plug-in wiring terminal blocks stacked together, so that the fixing members are sequentially distributed along the stacking direction, and the two adjacent fixing members are integrally connected at the side close to each other.

[0017] The plug-in wiring terminal table has at least the following beneficial effects: the fastening part is arranged, when the fixing member is inserted into the insertion part, one end of the fixing member is abutted against the side of the terminal table body, so that the fixing member forms a lever principle and the other end of the fixing member is inclined to the side of the terminal table body, so that the buckle structure of the docking connector is buckled, and the inclined fixing member is abutted against the insertion part to fasten the fixing member and prevent the fixing member from shaking and being not firm. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a structure schematic view of the wiring terminal table of the utility model;

[0020] Figure 2 It is an explosion view of the wiring terminal table of the utility model;

[0021] Figure 3 It is a sectional view of the wiring terminal table of the utility model;

[0022] Figure 4 It is a structure schematic view of the first shell of the utility model;

[0023] Figure 5 It is a structure schematic view of the terminal assembly of the utility model;

[0024] Figure 6 It is an explosion view of the terminal assembly of the utility model;

[0025] Figure 7 It is a structure schematic view of the plug-in wiring terminal table assembly of the utility model;

[0026] Figure 8 It is Figure 7 It is a structure schematic view of the fixing member and the terminal table body after being separated.

[0027] The meanings of various signs in the drawings are as follows:

[0028] Terminal base body 1, first end wall 111, plastic shell 12, first shell 121, first cavity 121a, first assembly cavity section 1211, tight cavity section 1212, butt cavity section 1213, first open side 1214, first separation groove 1215, first plug-in end 1216, second separation groove 1217, second plug-in end 1218, support edge 1219, second shell 122, second cavity 1221, first socket 123, buckle 124, card slot 125, second socket 126, third socket 127, limiting block 128, second open side 129, terminal assembly 13, metal terminal 131, clamping end 131a, assembly end 131b, tight side plate 1311, clamping arm 1312, clamping point 1313, first side plate 1314, second side plate 1315, connecting part 1316, third side plate 13161, fourth side plate 13162, fifth side plate 13163, sixth side plate 13164, first stop surface 13165, second stop surface 13166, groove 1317, inclined edge 1318, spring 132, first end 1321, second end 1322, engagement groove 1323, button 14, abutting block 141, sliding groove 142, sliding side 143, insertion part 2, insertion block 21, insertion hole 22, fixing part 3, base 31, clamping needle part 32, connecting section 321, insertion section 322, clamping part 33, elastic arm 331, limiting end 3311, step part 3312, clamping arm 332, holding end 34, abutting end 35, clearance space 36, clamping space 37, inner side 38, fastening part 4, protrusion 41, outer side 42. DETAILED DESCRIPTION

[0029] The utility model will be further described below with reference to the drawings.

[0030] Please refer to Figures 1 to 8 The plug-in wiring terminal base of the utility model includes terminal base body 1, insertion part 2 formed on terminal base body 1, fixing part 3 detachably installed on insertion part 2 and fastening part 4 formed on terminal base body 1, terminal base body 1 is used for plug-in cooperation with butt connector to realize electric signal transmission, and terminal base body 1 is also used for connecting with cable to realize circuit communication, insertion part 2 is used for installing fixing part 3 on terminal base body 1, fixing part 3 is used for fixing with butt connector when terminal base body 1 is connected with butt connector, and fastening part 4 is used for fastening fixing part 3 on terminal base body 1 to prevent fixing part 3 from shaking, loosening and the like.

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4The first end wall 111 and the second end wall are oppositely arranged on the outer side of the terminal block body 1, and the insertion part 2 and the fastening part 4 are formed on each of the first end wall 111 and the second end wall. The fixing part 3 is correspondingly arranged in two to correspond to the insertion part 2.

[0032] In the embodiment, the terminal block body 1 comprises a plastic shell 12, a terminal assembly 13 mounted in the plastic shell 12, and a button 14 mounted on the plastic shell 12 and used for pressing the terminal assembly 13. The first end wall 111 and the second end wall are formed on the outer side wall of the plastic shell 12.

[0033] The plastic shell 12 is formed by plastic injection and comprises a first shell 121 and a second shell 122, and the first shell 121 and the second shell 122 are both cuboid structures, and the height direction of the first shell 121 and the second shell 122 is regarded as the plug-in direction. In the embodiment, the terminal assembly 13 is provided as at least one, and at least one first cavity 121a is formed on the first shell 121 corresponding to the terminal assembly 13, each first cavity 121a is sequentially formed along the length direction of the first shell 121, and the first cavity 121a penetrates through one side of the first shell 121 along the plug-in direction to form a first open side 1214. The first cavity 121a comprises a first assembly cavity section 1211, a tight-fitting cavity section 1212 and a docking cavity section 1213 which are sequentially connected along the plug-in direction, wherein the first assembly cavity section 1211 penetrates through the first shell 121 to form the first open side 1214, the docking cavity section 1213 is located on the side away from the first assembly cavity section 1211 relative to the tight-fitting cavity section 1212, and the widths of the first assembly cavity section 1211, the tight-fitting cavity section 1212 and the docking cavity section 1213 are the same, and the lengths of the tight-fitting cavity section 1212 and the docking cavity section 1213 are the same and are smaller than the length of the first assembly cavity section 1211. A first socket 123 is formed on the side of the first shell 121 away from the first open side 1214 and corresponding to the position of each docking cavity section 1213, and the first socket 123 is used for the docking terminal of the docking connector to pass through to extend into the docking cavity section 1213. When the terminal assembly 13 is provided as at least two, in order to facilitate the connection with the docking connector, a first separation groove 1215 is arranged on the side of the first shell 121 provided with the first socket 123, and the first separation groove 1215 is sequentially arranged along the length direction of the first shell 121. When the terminal assembly 13 is provided as two, the first cavity 121a is provided as two, the first separation groove 1215 is one, the first separation groove 1215 separates the side of the first shell 121 provided with the first socket 123 into two first plug-in ends 1216, and the two first cavities 121a are respectively arranged on the two first plug-in ends 1216. The end of each first plug-in end 1216 is provided with the first socket 123. When the terminal assembly 13 is provided as three, the first separation groove 1215 is provided as two, and the two first separation grooves 1215 separate the side of the first shell 121 provided with the first socket 123 into three first plug-in ends 1216, and one first cavity 121a is arranged in each first plug-in end 1216, and one first socket 123 is arranged at the end of each first plug-in end 1216. The ends of each first plug-in end 1216 close to the first assembly cavity section 1211 are integrally connected with each other.A second partition groove 1217 is formed on the side of the first housing 121 where the first assembly cavity section 1211 is provided, along the width direction, the number of the second partition grooves 1217 is consistent with the first partition grooves 1215, and each second partition groove 1217 is respectively opposite to each first partition groove 1215 along the plug-in direction, so as to separate the part where the first assembly cavity section 1211 is located into a plurality of second plug-in ends 1218, the second plug-in ends 1218 are open towards the side away from the first socket 123 along the plug-in direction, a supporting edge 1219 is concavely arranged on each side of each second plug-in end 1218 along the length direction of the first housing 121, and a buckle 124 is convexly arranged on each outer side wall of each second plug-in end 1218 along the width direction of the first housing 121. In use, the first plug-in end 1216 is used to penetrate into the counter connector, and the second plug-in end 1218 is used to be inserted into the second housing 122.

[0034] The second housing 122 is provided with a second cavity 1221, which is open along one side of the second housing 122 in the insertion direction to form a second open side 129. The number of the second cavities 1221 is consistent with the number of the terminal assemblies 13 and each of the second cavities 1221 is distributed along the length direction of the second housing 122 and corresponds to the position of the first cavities 121a. On the second open side 129 of each of the second cavities 1221 and on the two side cavity walls along the width direction of the second housing 122, a clamping groove 125 is formed for clamping the buckle 124. During installation, the second insertion end 1218 is inserted into the second open side 129 of the second cavity 1221, and the buckle 124 corresponds to the clamping groove 125 until the buckle 124 is clamped in the clamping groove 125, so as to realize the connection of the first housing 121 and the second housing 122, and the terminal assembly 13 can be installed or disassembled when the first housing 121 and the second housing 122 are separated. On the side of the second housing 122 away from the second open side 129 in the insertion direction, a second insertion opening 126 is formed in the insertion direction, and the number and position of the second insertion opening 126 correspond to the second cavities 1221. The second insertion opening 126 is in communication with the second cavities 1221 in the insertion direction and penetrates through the side of the second housing 122 away from the second open side 129. The button 14 is inserted into the second insertion opening 126 through the second open side 129. In order to prevent the button 14 from being separated from the second housing 122, the part of the second housing 122 where the second insertion opening 126 is located is protruded relative to the inner wall of the second cavity 1221 to form a stepped surface between the inner wall of the second cavity 1221 and the part of the second housing 122. A resisting block 141 is protruded on one end of the button 14. When the other end of the button 14 is inserted into the second insertion opening 126, the resisting block 141 is opposite to the stepped surface. When the resisting block 141 abuts against the stepped surface, the button 14 cannot move in the insertion direction of the second insertion opening 126. Two sliding grooves 142 are formed on one side of the button 14, which are distributed at intervals and the length direction of the two sliding grooves 142 is distributed in the insertion direction, so that a sliding side 143 is formed on the side of the button 14 where the two sliding grooves 142 are located. A moving groove in communication with the second insertion opening 126 is recessed on the side of the second insertion opening 126 corresponding to the sliding side 143. The moving groove is in communication with the second insertion opening 126 and penetrates through the second housing 122 in the insertion direction. The end of the sliding groove 142 away from the resisting block 141 is closed.When installing, the button 14 is inserted into the second cavity 1221 from the open side of the second shell 122, and in the process of continuing to install, the sliding side 143 corresponds to the moving slot, the button 14, the first shell 121 and the second shell 122 can have a certain elasticity due to the support of the plastic, and the closed end of the sliding slot 142 can affect the installation of the button 14. Therefore, a certain force is needed to make the inner wall of the second socket 126 and the inner wall of the moving slot extrude the closed end of the sliding slot 142 to deform it to be inserted into the second socket 126, until the closed end of the sliding slot 142 is inserted out of the moving slot, and the closed end limits the button 14 from being separated from the second socket 126 to the side of the second cavity 1221, thereby simplifying the installation of the button 14 and avoiding the button 14 from falling off when the terminal assembly 13 is installed. After installation is completed, the second cavity 1221 and the first assembly cavity section 1211 jointly form the main assembly cavity section. The third socket 127 is provided on the side surface of the second shell 122 corresponding to each second cavity 1221, and the third socket 127 is used for the cable to be inserted therein to cooperate with the terminal assembly 13. The first end wall 111 and the second end wall are formed on the two outer side walls of the second shell 122 along the length direction, the fastening part 4 and the insertion part 2 are distributed on the corresponding end wall along the insertion direction, and are protruded on the corresponding end wall, that is, the first end wall 111 and the second end wall 112 are both protruded with the fastening part 4 and the insertion part 2; the insertion part 2 is closer to the direction of the docking connector, that is, relatively close to the first insertion end 1216, and the fastening part 4 is farther away from the direction of the docking connector, that is, close to the second insertion section 1218. When the fixing part 3 is inserted into the insertion part 2, the inner side surface 38 of the end of the fixing part 3 away from the docking connector is inclined outward under the action of the fastening part 4, and the inner side surface 38 of the end of the fixing part 3 close to the docking connector is inclined inward under the action of the fastening part 4, so that the part inserted into the insertion part 2 is tightly fitted with the insertion part 2.

[0035] The terminal assembly 13 includes a metal terminal 131 and a spring piece 132, the metal terminal 131 has a clamping end 131a for cooperating with the docking terminal and an assembly end 131b for cooperating with the cable, and the spring piece 132 is V-shaped and has a first end 1321 and a second end 1322. The assembly end 131b is installed in the main assembly cavity section, and the clamping end 131a is installed in the tightly fitted cavity section 1212 and the docking cavity section 1213.

[0036] The clamping end 131a comprises a U-shaped tight-fitting side plate 1311 and clamping arms 1312 extending from both ends of the tight-fitting side plate 1311 in the plug-in direction, the middle part of each clamping arm 1312 is inwardly bent to form a clamping point 1313, the tight-fitting side plate 1311 is arranged in the tight-fitting cavity section 1212 and abuts against the cavity wall of the tight-fitting cavity section 1212, and the two clamping arms 1312 are inserted into the counter-cavity section 1213 and the clamping points 1313 face the first socket 123 in the plug-in direction. The counter-terminal is squeezed into the clamping point 1313 after passing through the first socket 123, and the clamping arms 1312 clamp the counter-terminal through the clamping point 1313.

[0037] In the embodiment, the assembly end 131b comprises a first side plate 1314 integrally connected to the tight-fitting side plate 1311 of the clamping end 131a away from one end of the clamping arm 1312 in the plug-in direction, a second side plate 1315 extending perpendicularly from one side of the first side plate 1314, and a connecting part 1316 extending perpendicularly from the second side plate 1315. The connecting part 1316 comprises a third side plate 13161 extending perpendicularly from one side of the second side plate 1315 away from the first side plate 1314 and in the same direction as the first side plate 1314, a fourth side plate 13162 extending in the second direction from one side of the second side plate 1315 away from the first side plate 1314, a fifth side plate 13163 extending perpendicularly from one side of the fourth side plate 13162 away from the first side plate 1314 and in the same direction as the third side plate 13161, and a sixth side plate 13164 extending perpendicularly from one side of the second side plate 1315 away from the third side plate 13161 in the plug-in direction and in the same direction as the third side plate 13161. A plurality of grooves 1317 are formed on the first side plate 1314, and the first end 1321 of the elastic sheet 132 abuts against the grooves 1317. The third side plate 13161 and the sixth side plate 13164 each have a first stop surface 13165 flush in the plug-in direction, the fifth side plate 13163 has a second stop surface 13166 facing the first stop surface 13165, a limiting space is formed between the first stop surface 13165 and the second stop surface 13166 for the second end 1322 of the elastic sheet 132 to pass in the plug-in direction, and the first end 1321 is recessed with a clamping groove 1323 for buckling on the fifth side plate 13163. The fifth side plate 13163 is T-shaped to reduce the interference between the sixth side plate 13164 and the elastic sheet 132 when the limiting space cooperates with the elastic sheet 132. Preferably, an inclined edge 1318 is formed on one end of the first side plate 1314 facing the tight-fitting side plate 1311.

[0038] In assembly, the first shell 121 and the second shell 122 are split, the clamping portion is inserted into the first cavity 121a with one end of the clamping portion inserted into the butt joint cavity section 1213, the tight fitting side plate 1311 is inserted into the tight fitting cavity section 1212 and abuts against the inner wall of the tight fitting cavity section 1212, the sixth side plate 1316 abuts against the support edge 1219 and the inclined edge 1318 also abuts against the support edge 1219; after the button 14 is installed into the second socket 126, the first end 1321 of the elastic sheet 132 abuts against the first side plate 1314, the middle part passes the third side plate 1316, the second end 1322 is inserted into the limiting space and abuts against the fifth side plate 1316, the assembly end 131b is inserted into the second cavity 1221 with the open side of the second cavity 1221, the first side plate 1314, the second side plate 1315 and the fifth side plate 1316 abut against the three side cavity walls of the second cavity 1221 respectively, and one end of the abutting block 141 of the button 14 is located in the second cavity 1221 and abuts against the first end 1321 of the elastic sheet 132 when the buckle 124 is buckled into the clamping groove 125. The button 14 is pressed towards the open side of the second cavity 1221 to extrude the elastic sheet 132, the first end 1321 of the elastic sheet 132 extruded is in the adjustable clamping space between the first side plate 1314, the clamping space is through in the plug-in direction, the third socket 127 is opposite to the clamping space in the plug-in direction and is arranged on the side of the second shell 122 away from the open side, the cable is inserted through the third socket 127 and the clamping space, and then the button 14 is released, the elastic sheet 132 is rebounded to abut against the cable, and the groove 1317 increases the fastening force of the cable clamped between the first side plate 1314 and the first end 1321.

[0039] The first end wall 111 and the second end wall are parallel planes, and the two insertion portions 2 are respectively protruded on the first end wall 111 and the second end wall. The two insertion portions 2 are both cuboid structures, and each include an insertion block 21 integrally connected to the first end wall 111 and the second end wall respectively, and an insertion hole 22 through the insertion block 21 in the plug-in direction, the insertion hole 22 is T-shaped and has a wide section and a narrow section connected to the wide section, the fixing member 3 is inserted into the wide section, and the narrow section is used to reduce the interference between the insertion block 21 and the fixing member 3. The side of the insertion block 21 facing the first shell 121 is flush with the open side of the second shell 122.

[0040] The fixing member 3 is made of metal material and has elasticity, and the fixing member 3 is provided with two and is inserted into the two insertion holes 22 along the insertion direction, so as to realize the connection between the fixing member 3 and the second shell 122. The two fixing members 3 each include a base 31, a clamping needle portion 32 formed on the base 31 and used for being inserted into the insertion portion 2, a clamping portion 33 formed on the base 31 and used for being connected with the mating connector, a holding end 34 formed on the base 31, and an abutting end 35 formed on the base 31. The clamping needle portion 32 is used for being installed on the insertion hole 22, the clamping portion 33 is used for abutting against the outer side surface 42 of the fastening portion 4 on the inner side surface 38 of the clamping needle portion 32 when the clamping needle portion 32 is inserted into the insertion hole 22, and the fastening portion 4 makes the clamping needle portion 32 abut against the insertion hole 22, so as to be fastened and connected. The holding end 34 facilitates taking the fixing member 3 and is not affected by the second shell 122, and the abutting end 35 is used for limiting the fixing member 3 from being separated from the insertion hole 22 along the insertion direction when the fixing member 3 is installed on the second shell 122. When the clamping needle portion 32 is installed on the insertion portion 2, the inner side surface 38 of the base 31 or the portion close to the base 31 of the fixing member 3 abuts against the fastening portion 4, and the inner side surface 38 of the clamping portion 33 or the portion close to the clamping portion 33 of the fixing member 3 is inclined inwardly, so as to tightly fit the clamping needle portion 32 in the insertion portion 2.

[0041] The base 31 is in a sheet structure, the clamping portion 33 and the clamping needle portion 32 are integrally connected to one side edge of the base 31, and the holding end 34 and the abutting end 35 are integrally connected to the other side edge of the base 31, so that the clamping portion 33 and the holding end 34 are oppositely arranged on the two side edges of the base 31.

[0042] The clamping needle portion 32 includes a connecting segment 321 connected to the base 31 and an insertion segment 322 extending away from the base 31 on one side of the connecting segment 321 along the insertion direction and being narrower than the connecting segment 321. The insertion segment 322 is used for being inserted into the wide segment of the insertion hole 22, and the connecting segment 321 cannot be inserted into the insertion hole 22, so as to limit the insertion depth of the insertion segment 322. When the connecting segment 321 abuts against the insertion block 21, the insertion segment 322 is entirely arranged in the insertion hole 22.

[0043] The clamping portion 33 comprises two elastic arms 331 extending from the base portion 31 in the same direction and two clamping arms 332 connected to the ends of the elastic arms 331 away from the base portion 31, so that the clamping portion 33 has a U shape as a whole. The clamping needle portion 32 is located between the two elastic arms 331 and in the same plane as the elastic arms 331, and the insertion section 322 extends toward the side of the clamping arm 332 relative to the connecting section 321, so that the clamping portion 33 is arranged outside the clamping needle portion 32. Since the clamping needle portion 32 needs to be inserted into the insertion hole 22, and the insertion block 21 has a certain volume, therefore, an empty space 36 is arranged between the clamping portion 33 and the clamping needle portion 32, which can be used for the insertion block 21 to move in and out. When the insertion section 322 is inserted into the insertion hole 22, the insertion block 21 is located in the empty space 36, so as to avoid interference. During installation, the insertion section 322 of the clamping needle portion 32 is aligned with the insertion hole 22 and inserted into the insertion hole 22 from the side of the mating connector. During the installation process, the clamping needle portion 32 needs to be pulled out of the empty space 36 or the empty space 36 needs to be large enough. In this embodiment, when the insertion section 322 is inserted into the insertion hole 22, the insertion block 21 is located in the empty space 36, and the side of the elastic arm 331 facing the second housing 122 is also the inner side 38 of the fixed part 3. The outer side 42 of the fastening portion 4 abuts against the inner side 38 of the elastic arm 331 near the end of the base portion 31.

[0044] In order to further limit the fixing member 3, the two elastic arms 331 of each fixing member 3 are formed with limiting ends 3311 at the end away from the base 31 for limiting the insertion depth of the first plug-in end 1216 into the mating connector, and the two limiting ends 3311 are formed with inclined side edges on the outer wall of the end wall of the elastic arm 331, and the one end of the two inclined side edges is curved to form a stepped portion 3312 with the outer side edge of the elastic arm 331, and the other end of the two inclined side edges extends away from the base 31 and gradually approaches and connects to the clamping arm 332, so that the limiting end 3311 and the clamping arm 332 form a trapezoidal shape to facilitate quick insertion into the mating connector. The inner side edge of the limiting end 3311 is also inclined, and when the insertion section 322 is inserted into the insertion hole 22, the two sides of the insertion block 21 abut against the inner side edges of the two limiting ends 3311, so that the cooperation between the limiting end 3311 and the insertion block 21 not only limits the insertion depth of the insertion section 322, but also prevents the clamping portion 33 from shaking relative to the insertion block 21, thereby improving stability. At the same time, since the insertion portion 2 is flush with the open side of the second housing 122 towards the first housing 121, when the insertion section 322 is inserted into the insertion hole 22, the limiting end 3311 and the clamping arm 332 both pass through the insertion block 21 along the insertion direction away from the second opening 126, so that the clamping arm 332 and the limiting end 3311 of the elastic arm 331 form a clamping space 37 around the insertion portion 2 connected to the mating connector. When the first plug-in end 1216 is inserted into the mating connector, the clamping arm 332 and the limiting end 3311 are inserted into the mating connector, and the clamping space 37 is clamped into the clamping space 37 and is hooked by the clamping arm 332 to complete the connection.

[0045] In another embodiment, the clamping needle portion 32 can be inclined towards the second housing 122 relative to the two elastic arms 331, and the insertion hole 22 can be correspondingly provided in an inclined manner, so that during installation, the clamping needle portion 32 is inserted into the insertion hole 22 along the inclined direction of the clamping needle portion 32 until the clamping portion 33 abuts against the insertion block 21.

[0046] In order to facilitate the insertion of the insertion section 322 into the insertion hole 22, the insertion section 322 has a clearance with the inner wall of the insertion hole 22 so that the insertion section 322 can be shaken relative to the insertion hole 22, and the fastening portion 4 is used to press the two elastic arms 331 toward the side away from the second housing 122 when the insertion section 322 is inserted into the insertion hole 22, and the two elastic arms 331 are then fastened to the inner wall of the side of the insertion hole 22 and are no longer shaken. The two fastening portions 4 on the first end wall 111 and the two fastening portions 4 on the second end wall each include two protruding lugs 41, which are arranged outside the two sides of the insertion block 21 along the width direction of the second housing 122 and are located outside the side of the insertion block 21 close to the second insertion opening 126 along the insertion direction, so as to correspond to the end of the elastic arm 331 close to the base 31. When the clamping needle portion 32 is installed on the insertion portion 2, the end of the elastic arm 331 close to the base 31 is pressed by the fastening portion 4 and is tightly pressed against the lug 41, and each lug 41 tightly presses the end of the elastic arm 331 close to the base 31 toward the side away from the second housing 122, so that the fastening portion 4 and the fixing member 3 form a lever principle, the fastening portion 4 forms the fulcrum of the lever, the elastic arm 331 is affected by the lever and the end of the clamping arm 332 is inclined toward the first insertion end 1216, the clamping needle portion 32 is also inclined, the one end and the other end of the insertion section 322 connected to the connection section 321 are tightly pressed against the inner walls of the two sides of the insertion hole 22 in opposite directions, so as to realize the fastening effect of the fixing member 3, and the clamping space 37 is also inclined inward, which makes the structure of the clamping buckle 124 of the mating connector more easily clamped therein.

[0047] In the embodiment, in order to space the holding end 34 from the corresponding first end wall 111 or second end wall, each elastic arm 331 and connecting section 321 is bent at one end close to the base 31 to form a bent section for spacing from the first end wall 111 and second end wall respectively when the fixing member 3 is mounted on the terminal block body 1, and the base 31 is connected to the bent section, so that force can be applied through the holding end 34 when the fixing member 3 is mounted or dismounted. The abutting end 35 is arranged on both sides of the holding end 34 and extends from the base 31 away from the elastic arm 331, and the middle part of the abutting end 35 is bent away from the second shell 122, so that the end of the abutting end 35 away from the base 31 extends obliquely toward the second shell 122. Two limiting blocks 128 are protruded on the first end wall 111 and the second end wall, and the two limiting blocks 128 on the first end wall 111 and the second end wall are respectively opposite to the two protrusions 41 on the first end wall 111 and the second end wall in the insertion direction, and the two limiting blocks 128 have a space through which the holding end 34 passes, and the two abutting ends 35 are distributed corresponding to the two limiting blocks 128. When the fixing member 3 is mounted, the fixing member 3 is inclined relative to the first end wall 111 and the second end wall, and the abutting end 35 rubs against the limiting block 128, the elastic arm 331 rubs against the insertion block 21, and the insertion section 322 is inserted into the insertion hole 22, and the limiting block 128 blocks the abutting end 35 at this time to limit the movement of the fixing member 3 away from the insertion hole 22, thereby further preventing the fixing member 3 from falling off.

[0048] The utility model further provides a plug-in wiring terminal block assembly which comprises a plurality of plug-in wiring terminal blocks stacked together, the stacking direction is the width direction of the second shell 122, and the fixing members 3 on both sides of each plug-in wiring terminal block are sequentially distributed along the stacking direction, and any two adjacent fixing members 3 on the first end wall 111 and the second end wall are integrally connected on the side close to each other, so that the plug-in wiring terminal blocks can be connected through the fixing members 3.

Claims

1. A plug-in terminal block comprising a terminal block body and a fastening element for fastening to a counter connector, characterized in that: The outer side wall of the terminal block body has oppositely distributed first and second end walls, and an insertion part and a fastening part are formed on each of the first and second end walls, the fixing members are arranged in two and are respectively inserted into the two insertion parts in the insertion direction, and the fastening parts are used to fasten the fixing members installed on the insertion parts.

2. The plug termination block of claim 1, wherein: The fastening parts and the insertion parts are spaced apart and distributed on the corresponding end walls in the insertion direction, and are respectively protruded on the corresponding end walls; the insertion parts are closer to the direction of the mating connector, and the fastening parts are farther away from the direction of the mating connector; when the fixing members are inserted into the insertion parts, the inner side surface of the end of the fixing member away from the mating connector is outwardly inclined under the action of the fastening part, and the inner side wall of the end of the fixing member close to the mating connector is inwardly inclined under the action of the fastening part, so that the part inserted into the insertion part is tightly fitted with the insertion part.

3. The plug termination block of claim 2, wherein: Each of the fixing members includes a base, a clamping pin part formed on the base and used to be inserted into the insertion part, and a clamping part formed on the base and used to be connected with the mating connector; when the clamping pin part is installed on the insertion part, the inner side surface of the base or the part close to the base of the fixing member abuts against the fastening part, and the inner side surface of the clamping part or the part close to the clamping part of the fixing member is inwardly inclined, so that the clamping pin part is tightly fitted in the insertion part.

4. The plug termination block of claim 3, wherein: The clamping part includes two elastic arms formed in the same direction from the base and two clamping arms respectively connected to the ends of the two elastic arms away from the base, and the clamping pin part is located between the two elastic arms; when the clamping pin part is inserted into the insertion part, the outer side surface of the fastening part abuts against the inner side surface of the end of the two elastic arms close to the base, so that one end of the clamping arm is inclined toward the side close to the terminal block body to make the clamping pin part abut against the insertion part, and a clamping space connected with the mating connector is formed between the clamping arm, the elastic arm and the insertion part.

5. The plug termination block of claim 4, wherein: Each of the two fastening parts includes two protruded protrusions, and each of the protrusions on the first and second end walls is used to abut against the end of each elastic arm close to the base when the clamping pin part is installed on the insertion part; the end of each of the elastic arm and the clamping pin part close to the base is bent toward the side away from the terminal block body to form a bent segment used to be spaced apart from the terminal block body when installed on the terminal block body, and the base is connected to the bent segment.

6. The plug termination block of claim 5, wherein: The end of each of the two elastic arms away from the base is formed with a limiting end used to limit the insertion depth of the terminal block body inserted into the mating connector, and the limiting end is connected to the clamping arm.

7. The plug termination block of claim 6, wherein: The two insertion parts include an insertion block integrally connected to the first and second end walls respectively and an insertion hole through the insertion block and opened in the insertion direction; the clamping pin part includes a connecting segment connected to the base and located between the two elastic arms, and an insertion segment extending from the connecting segment toward the clamping part and narrower than the connecting segment, the insertion segment is used to be inserted into the insertion hole, and the two sides of the insertion block are respectively abutted against the inner sides of the two limiting ends.

8. The plug termination block of claim 7, wherein: The base is provided with a holding end and two abutting ends spaced from the terminal block body on the side away from the clamping portion; the first end wall and the second end wall are each provided with a limiting block for blocking the abutting end after the insertion section is inserted into the insertion hole to limit the movement of the fixing member toward the side away from the insertion hole.

9. The plug termination block of claim 1, wherein: The terminal block body comprises a plastic shell, a terminal assembly mounted in the plastic shell, and a button mounted on the plastic shell and used for pressing the terminal assembly, and the first end wall and the second end wall are formed on the plastic shell; The terminal assembly comprises a metal terminal and a spring piece, and the metal terminal has a clamping end for cooperating with a mating terminal and an assembly end; The assembly end comprises a first side plate integrally connected to the clamping end in the plug-in direction, a second side plate extending from a side edge of the first side plate perpendicularly, and a connecting portion extending from the second side plate perpendicularly; The connecting portion comprises a third side plate extending from the second side plate perpendicularly away from the first side plate in the same direction, a fourth side plate extending from the second side plate away from the first side plate in a second direction, a fifth side plate extending from the fourth side plate perpendicularly away from the first side plate in the same direction, and a sixth side plate extending from the second side plate perpendicularly away from the third side plate in the plug-in direction in the same direction, the first side plate is provided with a plurality of grooves, a first end of the spring piece is abutted to the grooves, the third side plate and the sixth side plate each have a first abutting surface flush in the plug-in direction, the fifth side plate has a second abutting surface facing the first abutting surface, a limiting space is formed between the first abutting surface and the second abutting surface for a second end of the spring piece to pass through in the plug-in direction, and the first end is recessed with a clamping groove for buckling on the fifth side plate, and the fifth side plate is T-shaped.

10. A plug-in terminal block assembly characterized by: A plurality of the plug-in wiring terminal blocks as claimed in any one of claims 1 to 9 are stacked together, so that the fixing members are sequentially distributed in the stacking direction, and two adjacent fixing members are integrally connected on the side close to each other.

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