Electric connector

Abstract

The utility model discloses an electric connector, comprising an insulation housing provided with a plugging cavity penetrating along a plugging direction; the electric connector body is inserted into the insertion cavity along the insertion direction; the limiting structure is inserted from two opposite sides of the insulating shell and is in limiting fit with the electric connector body so as to limit the electric connector body to move along the insertion direction; the limiting structure comprises two limiting units which are oppositely arranged, and each limiting unit comprises a limiting arm, a first limiting part arranged at the inner end of the limiting arm and a second limiting part arranged at the outer end of the limiting arm; the two opposite side walls of the insulating shell are provided with through holes allowing the corresponding limiting arms and the first limiting parts to pass through and second limiting parts used for limiting the second limiting parts from moving inwards. The two opposite sides of the electric connector body are respectively provided with a first limiting part for limiting the first limited part from moving outwards.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors. Background Art

[0002] Electrical connectors are widely used in electronics, electrical appliances, and instruments. Its function is to serve as a connecting bridge at the blocked or independently non-connected parts in the circuit, taking on the task of current or signal transmission; or cooperating with electrical beam terminals to form a board-to-wire connection; or independently used for board-to-board connection.

[0003] An electrical connector mainly consists of an insulating housing and an electrical connector body, etc. The insulating housing not only protects internal parts from damage but also plays a role in positioning the plug and socket. The electrical connector body mainly realizes the physical connection between circuits through contact bodies such as pins and jacks.

[0004] In the existing design of electrical connectors, the limiting block is usually an integrally formed plastic structure, which is used to limit the movement of the electrical connector body in the insulating housing to prevent loosening during the plugging and unplugging process. However, during long-term use, this limiting block structure is affected by factors such as an increase in the number of uses and changes in environmental temperature, and problems such as wear and deformation are likely to occur. These problems will cause the electrical connector body to not be able to stay stably in the insulating housing for a long time, thus leading to faults such as loosening. Summary of the Utility Model

[0005] Aiming at the deficiencies of the above-mentioned existing technology, the technical problem to be solved by the utility model is: to provide an electrical connector that prevents the electrical connector body from loosening.

[0006] To solve the above technical problem, a technical solution adopted by the utility model is: to provide an electrical connector, including:

[0007] An insulating housing having a plugging cavity that penetrates along the plugging direction;

[0008] An electrical connector body inserted into the plugging cavity along the plugging direction; and

[0009] A limiting structure inserted from opposite sides of the insulating housing and in limiting cooperation with the electrical connector body to limit the movement of the electrical connector body along the plugging direction; the limiting structure includes two relatively arranged limiting units, and each limiting unit includes a limiting arm, a first restricted portion provided at the inner end of the limiting arm, and a second restricted portion provided at the outer end of the limiting arm; through holes for the corresponding limiting arm and the first restricted portion to pass through and a second limiting portion for restricting the inward movement of the second restricted portion are provided on opposite side walls of the insulating housing; first limiting portions for restricting the outward movement of the first restricted portion are provided on opposite sides of the electrical connector body.

[0010] Further, each of the first limiting portions includes a limiting hole provided on the corresponding side wall of the electrical connector body and a first stopping portion provided at the limiting hole; the first restricted portion includes a plurality of elastic arms and a first blocking portion provided on the elastic arms at positions corresponding to the first stopping portion; the elastic arms are inserted through the limiting holes, and the first blocking portion is blocked by the first stopping portion and cannot move outward.

[0011] Further, the limiting hole is defined as a clamping hole, and the first stopping portion is defined as a clamping portion; the first restricted portion is defined as a harpoon-shaped buckle provided at the inner end of the limiting arm.

[0012] Further, at least one slotted opening is provided at the inner end of the limiting arm, and the at least one slotted opening penetrates the inner end surface of the limiting arm along the length direction of the limiting arm to divide the inner end of the limiting arm into a plurality of the elastic arms; a receiving cavity with a transverse dimension larger than that of the limiting hole is provided at the inner end of the limiting hole, and a part of the outer cavity wall of the receiving cavity around the periphery of the limiting hole forms the first stopping portion; the first blocking portion is defined as a barb portion provided at the inner end of the elastic arm, and the outer side surface of the barb portion abuts against the first stopping portion.

[0013] Further, the electrical connector body includes a housing and a plug-in member provided in the metal housing along the insertion direction, and the plug-in member includes an insulating body and a terminal assembly formed integrally with the insulating body; the limiting hole penetrates the corresponding side wall of the metal housing along the thickness direction of the metal housing; a groove with a transverse dimension larger than that of the limiting hole is provided on one side of the insulating body opposite to the limiting hole, and the groove and the opposite side wall enclose to form the receiving cavity; a part of the inner side surface of the side wall around the periphery of the limiting hole forms the first stopping portion.

[0014] Further, the second restricted portion is defined as a restricted block with a transverse dimension larger than that of the limiting arm; the second limiting portion is defined as a limiting groove provided at a position of the insulating housing corresponding to the restricted block, and the bottom surface of the limiting groove is used to limit the inward movement of the restricted block.

[0015] Further, a metal sheet is spanned on each of the limiting arms, and each metal sheet is located inside the restricted block; a third limiting portion for restricting the movement of the metal sheet in the spanning direction is provided on each restricted block, and a third restricted portion corresponding to the third limiting portion is provided at a position of each metal sheet.

[0016] Further, the third limiting portion can be defined as a limiting concave portion, and the third restricted portion can be defined as a restricted convex portion that is in limiting cooperation with the limiting concave portion.

[0017] Further, the limiting recess penetrates through the inner side surface of the restricted block inward, and the bottom surface of the limiting recess and the corresponding side surface of the limiting arm are located in the same plane.

[0018] Further, the third limiting portion can be defined as a limiting convex portion, and the third restricted portion can be defined as a restricted concave portion that is in limiting cooperation with the limiting convex portion.

[0019] In the electrical connector of the present application, the two limiting portions arranged oppositely play a role in laterally connecting the insulating housing and the electrical connector body. The inner ends of the two limiting portions extend into and limit the electrical connector body, and the outer ends penetrate through and limit the corresponding side walls of the insulating housing, which can prevent the limiting portions from detaching from the electrical connector and effectively prevent the electrical connector body from loosening when being inserted into the complementary electrical connector, realizing the stopping function of the electrical connector along the insertion direction. The inner end of the limiting arm is designed as a multi-elastic arm structure, and a limiting hole structure is arranged on the corresponding side wall of the electrical connector body. When the multi-elastic arms penetrate into the limiting holes inward, they are squeezed towards the central axis direction, so as to smoothly penetrate into the limiting holes. The inner ends of the multi-elastic arms are designed with a first restricted portion, which is in abutting cooperation with the first stopping portion at the inner end of the limiting hole, and can effectively prevent the limiting arm from moving outward, locking the inner end of the limiting arm within the electrical connector. The outer end of the limiting arm is designed with a second restricted portion with a larger size, and a second limiting portion is designed at the corresponding side wall of the insulating housing. Through the design of the restricted portions at the inner and outer ends, the electrical connector body can be limited in the lateral direction to prevent the electrical connector body from loosening in the length direction of the limiting wall. The outer end of each limiting arm is also designed with a third limiting portion for restricting the metal sheet, which can realize the limiting cooperation with the metal sheet. Description of the Drawings

[0020] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0021] Figure 1 is a schematic structural diagram of an embodiment of the electrical connector of the present utility model.

[0022] Figure 2 Figure 2 is a schematic structural diagram of the insulating housing in [the figure].

[0023] Figure 3 is an exploded view of the insulating housing and the limiting unit in an embodiment of the electrical connector of the present utility model.

[0024] Figure 4 is an exploded view of the insulating body in an embodiment of the electrical connector of the present utility model.

[0025] Figure 5 isFigure 4 Enlarged view of local area A.

[0026] Figure 6 It is an assembly schematic diagram of the limiting structure, the insulating housing and the electrical connector body in an embodiment of the electrical connector of the present utility model. One of the limiting units is hidden in the figure.

[0027] Figure 7 It is an assembly schematic diagram of one of the limiting units and one of the metal sheets.

[0028] Reference numerals in the specification drawings are as follows:

[0029] Electrical connector 1000; mating end 1000a; mounting end 1000b;

[0030] Insulating housing 100; housing wall 110; insertion cavity 120; second stop portion 121; insertion groove 130; guiding portion 131; through hole 140; second limiting portion 150; limiting groove 151;

[0031] Electrical connector body 200; housing 210; annular housing wall 211; wide-side side wall 211a; narrow-side side wall 211b; receiving cavity 212; elastic limiting block 213; strip-shaped hole 214; plug-in member 220; insulating body 221; base portion 221a; docking tongue portion 221b; mating groove 221c; terminal assembly 222; first limiting portion 230; limiting hole 231; first stop portion 232; receiving cavity 233;

[0032] Limiting structure 300; limiting unit 300a; limiting arm 310; first restricted portion 320; elastic arm 321; first blocked portion 322; slit 323; second restricted portion 330; restricted block 331; limiting recess 332; restricted convex portion 333; metal sheet 340; connecting section 341; welding section 342. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] See also Figure 1 , Figure 3 and Figure 4 The electrical connector 1000 comprises an insulating housing 100, an electrical connector body 200 inserted into the insulating housing 100 along the plugging direction, and a limiting structure 300. The electrical connector body 200 comprises a metal shell 210 and a plug-in component 220 disposed in the metal shell 210 along the plugging direction, wherein the plug-in component 220 comprises an insulating body 221 and a terminal assembly 222 integrally formed with the insulating body 221. The limiting structure 300 is inserted from opposite sides of the insulating housing 100 and cooperates with the electrical connector body 200 to limit the movement of the electrical connector body 200 along the plugging direction.

[0037] In the illustrated embodiment, the electrical connector 1000 is a USB Type C connector, and the electrical connector 1000 will be described below by taking the USB Type C connector as an example. It should be understood that although the USB Type C connector is used for description below, the USB Type C connector is not used as a limitation for the electrical connector 1000. The electrical connector 1000 has a mating end 1000a and a mounting end 1000b, wherein the mating end 1000a is used for plugging and mating with the complementary mating end 1000a of a complementary electrical connector (also called a docking electrical connector), and the mounting end 1000b is used for electrically connecting with a substrate or an electrical terminal, and the substrate may be a printed circuit board, a backplane, etc. Thus, the mating end 1000a and the mounting end 1000b of the insulating housing 100, the mating end 1000a and the mounting end 1000b of the electrical connector body 200, the mating end 1000a and the mounting end 1000b of the plug 220, and the mating end 1000a and the mounting end 1000b of the terminal assembly 222 are derived. The mating end 1000a of each of the above components refers to the end facing the complementary electrical connector, and the mounting end 1000b refers to the end facing the substrate or the electrical terminal. In this embodiment, the electrical connector 1000 is a linear electrical connector, that is, the mating end 1000a and the mounting end 1000b are distributed on the same straight line along the plug-in direction, so the mounting end 1000b is the end away from the mating end 1000a. When the electrical connector 1000 is a vertical (L-shaped) electrical connector, the mounting end 1000b is distributed along a direction perpendicular to the mating end 1000a.

[0038] In this text, the direction in which the electrical connector 1000 is plugged and mated with a complementary electrical connector is referred to as the plugging direction, the axial direction, or the vertical direction Z. The direction perpendicular to the plugging direction is referred to as the lateral direction or the horizontal direction, and the lateral direction further includes the row direction and the column direction of the terminal assembly 222. For the sake of convenience of description, the row direction is referred to as the first direction X, and the column direction is referred to as the second direction Y. It can be seen from this that the lateral direction in this text refers to the horizontal direction perpendicular to the vertical direction Z, and the first direction X and / or the second direction Y are included within the scope of the lateral direction.

[0039] Please refer to Figure 2 , the insulating housing 100 includes a housing wall 110 and a plugging cavity 120 formed by surrounding the housing wall 110. The plugging cavity 120 penetrates the insulating housing 100 along the vertical direction Z for the electrical connector body 200 to be inserted therein along the vertical direction Z. A second stop portion 121 for abutting against the electrical connector body 200 is provided at the mating end 1000a of the plugging cavity 120. The second stop portion 121 is integrally formed on the inner cavity wall of the plugging cavity 120, and the second stop portion 121 is used to limit the movement of the electrical connector body 200 along the vertical direction Z towards the complementary electrical connector. A plugging groove 130 for plugging and mating with a complementary electrical connector is further provided at the mating end 1000a of the insulating housing 100. The size of the plugging groove 130 in the lateral direction (the first direction X and the second direction Y) is larger than the size of the plugging cavity 120, and is used to wrap the complementary mating end 1000a of the complementary electrical connector therein. Guide portions 131 are distributed along the vertical direction Z on the inner wall surface of the plugging groove 130, and are used to achieve rapid guiding when the electrical connector 1000 is plugged and mated with a complementary electrical connector. The portion of the bottom of the plugging groove 130 facing the plugging cavity 120 forms a through port. When the electrical connector 1000 is plugged and mated with a complementary electrical connector, the complementary mating end 1000a of the complementary electrical connector is inserted into the plugging groove 130 and abuts against the end surface of the mating end 1000a of the plugging cavity 120, and the complementary terminal assembly 222 of the complementary electrical connector is inserted into the plugging cavity 120 from the through port to be plugged and mated with the terminal assembly 222.

[0040] Please refer to Figure 3 , Figure 4 and Figure 5, the metal housing 210 includes an annular housing wall 211 and a receiving cavity 212 surrounded by the annular housing wall 211 for receiving the plug-in member 220. In the illustrated embodiment, the annular housing wall 211 has two wide-side walls 211a spaced parallel to each other in the first direction X and narrow-side walls 211b spaced in the second direction Y, and the narrow-side walls 211b are arc-shaped. The wide-side walls 211a refer to the side walls with a larger area distributed in the second direction Y, and the narrow-side walls 211b refer to the side walls with a dimension smaller than that of the wide-side walls 211a in the first direction X. That is, the dimension of the annular housing wall 211 formed by enclosing the wide-side walls 211a and the narrow-side walls 211b in the first direction X is much smaller than that in the second direction Y, so as to form an oblate shape.

[0041] On two opposite side walls of the annular housing wall 211, there are provided third limiting portions for limiting cooperation with the insulating body 221, and a plurality of welding pins are provided at the mounting end 1000b of the annular housing wall 211. The third limiting portion is defined as an elastic limiting block 213 protruding inward from the wide-side wall 211a of the annular housing wall 211. In this embodiment, a strip-shaped hole 214 distributed along the length direction of the edge is provided at the edge of the mounting end 1000b of the annular housing wall 211, and the strip-shaped hole 214 penetrates the annular housing wall 211 in the vertical direction Z towards the mounting end 1000b, so as to divide the corresponding edge of the strip-shaped hole 214 into two parts to form the two elastic limiting blocks 213, and the two elastic limiting blocks 213 incline towards the inside of the receiving space.

[0042] The insulating body 221 includes a base portion 221a and a docking tongue portion 221b extending forward in the vertical direction Z from the base portion 221a. At a position corresponding to the third limiting portion on the base portion 221a, there is provided a third cooperating portion, and the third cooperating portion may be a cooperating groove 221c for limiting cooperation with the elastic limiting block 213. The terminal assembly 222 includes an upper row of terminal groups, a lower row of terminal groups, and a middle plate disposed therebetween. On the middle plate, welding pins extend backward (towards the mounting end 1000b) along the plugging direction, and snap portions are provided on both sides of the middle plate along the second direction Y, and the snap portions are used for snapping with complementary snap portions of the complementary terminal assembly 222.

[0043] The limiting structure 300 includes two relatively arranged limiting units 300a. Each limiting unit 300a includes a limiting arm 310, a first restricted portion 320 arranged at the inner end of the limiting arm 310, a second restricted portion 330 arranged at the outer end of the limiting arm 310, and a metal sheet 340. Through holes 140 for the corresponding limiting arms 310 and first restricted portions 320 to pass through and second limiting portions 150 for restricting the inward movement of the second restricted portions 330 are arranged on the opposite side walls of the insulating housing 100. First limiting portions 230 for restricting the outward movement of the first restricted portions 320 are arranged on the opposite sides of the electrical connector body 200. In the illustrated embodiment, the two through holes 140 are respectively arranged on the side walls of the insulating housing 100 corresponding to the two wide side walls 211a. Each through hole 140 penetrates the corresponding side wall of the insulating housing 100 along the first direction X. The length of the limiting arm 310 extends along the first direction X and is inserted into the through hole 140 along the first direction X. The inner end of the limiting arm 310 refers to the end facing the insulating body 221 along the first direction X, and the outer end refers to the end exposed outside the insulating housing 100 along the first direction X.

[0044] Please refer to Figure 6 and Figure 7, the first limiting part 320 includes a plurality of elastic arms 321 and a first blocking part 322 arranged on the elastic arms 321; the elastic arms 321 are inserted through the first limiting part 230, and the first blocking part 322 is blocked by the first limiting part 230 and cannot move outward. In the illustrated embodiment, a slit 323 is provided at the inner end of the limiting arm 310, and the slit 323 penetrates the inner end face of the limiting arm 310 along the length direction of the limiting arm 310 to divide the inner end of the limiting arm 310 into two, forming two of the elastic arms 321. The first blocking part 322 is defined as a barb part provided at the inner end of each elastic arm 321, and the outer side surface (the side surface facing outward along the first direction X) of the barb part abuts against the corresponding position of the first limiting part 230. It should be understood that the number of the elastic arms 321 is not limited to the two described above. For example, by opening a "cross"-shaped slit 323, four elastic arms 321 can be formed. Another example is that a central axis hole can be opened at the inner end of the elastic arm 321, and a plurality of slits 323 can be opened on the hole wall of the axis hole to form a corresponding plurality of elastic arms 321. The first blocking part 322 is not limited to the above-mentioned barb part structure. Designing the barb part can be used to play a role in guiding and quickly inserting when the elastic arm 321 is inserted into the first limiting part 230. In other embodiments, the first blocking part 322 can also have other deformations. For example, it can be designed as a convex block arranged on the outer arm surface of the elastic arm 321. It should also be understood that although the above-mentioned first blocking part 322 is described by taking raised structures such as barb parts and convex blocks as examples, the first blocking part 322 should not be limited to the raised structures described above. In other embodiments, the first blocking part 322 can also be in an opposite concave structure, as long as the first limiting part 230 and the first blocking part 322 can cooperate with each other to prevent the limiting arm 310 from moving outward in the lateral direction. Another example is that in some other embodiments, the first limiting part 320 is defined as a harpoon-shaped buckle provided at the inner end of the limiting arm 310.

[0045] Please refer to Figure 1 and Figure 7, corresponding to the above-mentioned limiting arm 310 and barb portion, each of the first limiting portions 230 includes a limiting hole 231 provided on the corresponding side wall of the electrical connector body 200 and a first stopping portion 232 provided at the limiting hole 231. The limiting hole 231 is used for the elastic arm 321 to pass through therein, and the first stopping portion 232 is used to prevent the first blocked portion 322 from moving outward. The limiting hole 231 penetrates the corresponding side wall of the metal housing 210 along the thickness direction of the corresponding side wall (the wide side wall 211a) of the metal housing 210. A receiving cavity 233 with a transverse dimension larger than that of the limiting hole 231 is provided at the inner end of the limiting hole 231. A part of the outer cavity wall of the receiving cavity 233 around the periphery of the limiting hole 231 forms the first stopping portion 232. In the illustrated embodiment, a groove with a transverse dimension (here it refers to the dimension along the second direction Y) larger than that of the limiting hole 231 is provided on the side of the insulating body 221 opposite to the limiting hole 231. The groove and the opposite side wall enclose to form the receiving cavity 233; a part of the inner side surface of the side wall around the periphery of the limiting hole 231 forms the first stopping portion 232. In other embodiments, the limiting hole 231 can also be defined as a clamping hole, and the first stopping portion 232 is defined as a clamping portion provided in the clamping hole; the clamping portion is used for clamping with a harpoon-shaped buckle.

[0046] The second restricted portion 330 is defined as a restricted block 331 with a transverse dimension larger than that of the limiting arm 310. Corresponding to the restricted block 331, the second limiting portion 150 is defined as a limiting groove 151 provided at the position of the insulating housing 100 corresponding to the restricted block 331. The bottom surface of the limiting groove 151 is used to limit the inward movement of the restricted block 331. In the illustrated embodiment, the restricted block 331 has a strip-like structure, its dimension along the second direction Y is larger than that of the limiting arm 310, and its dimension along the vertical direction Z is also larger than that of the limiting arm 310, so that the side surface of the restricted block 331 facing the mating end 1000a protrudes from the side surface of the limiting arm 310 facing the mating end 1000a. It should be understood that the restricted block 331 is not limited to the above strip-like structure, as long as its transverse dimension is larger than the dimension of the through hole 140, so that it can be restricted outside the insulating housing 100.

[0047] The restricted block 331 of the strip-shaped structure can facilitate the limit fit with the metal sheet 340. A metal sheet 340 is spanned across each of the limit arms 310, and each of the metal sheets 340 is located inside the restricted block 331. A third limit portion for restricting the metal sheet 340 from moving in the spanning direction is provided on each restricted block 331, and a third restricted portion corresponding to the third limit portion is provided at the corresponding position on each metal sheet 340. In the illustrated embodiment, the third limit portion may be defined as a limit recess 332, the limit recess 332 penetrates the inner side surface of the restricted block 331 inwardly, and the bottom surface of the limit recess 332 and the corresponding side surface of the limit arm 310 are in the same plane. Correspondingly, the third restricted portion may be defined as a restricted convex portion 333 that is in limit fit with the limit recess 332. In other embodiments, the third limit portion may also be defined as a limit convex portion, and the third restricted portion may be correspondingly defined as a restricted recess that is in limit fit with the limit convex portion.

[0048] In the illustrated embodiment, the metal sheet 340 has a lower frame-shaped structure, which has a connecting section 341 extending in the second direction Y and two welding sections 342 extending from both ends of the connecting section 341 toward the mounting end 1000b. A receiving groove 160 for receiving the connection terminal is provided on the corresponding side wall of the insulating housing 100. The receiving groove 160 is recessed inwardly from the outer side surface of the corresponding side wall. The receiving groove 160 has a first receiving section 161 for receiving the connecting section 341 and two second receiving sections 162 for receiving the two welding sections 342. The welding ends of the two welding sections 342 respectively extend out of the two second receiving sections 162. The first receiving section 161 is perpendicular to the through hole 140, and the side wall of the first receiving section 161 facing the mounting end 1000b and the hole wall of the through hole 140 facing the mating end 1000a are in the same plane. When the connecting section 341 is received in the first receiving section 161, the side surface of the connecting section 341 facing the mounting end 1000b abuts against the side surface of the limit arm 310 facing the mating end 1000a.

[0049] In the electrical connector of the present application, two relatively arranged limiting parts play a role in laterally connecting the insulating housing and the electrical connector body. The inner ends of the two limiting parts extend into and limit the electrical connector body, and the outer ends penetrate and are limited at the corresponding side walls of the insulating housing, which can prevent the limiting parts from detaching from the electrical connector and effectively prevent the electrical connector body from loosening when inserted into a complementary electrical connector, realizing the anti-displacement function of the electrical connector along the insertion direction. The inner ends of the limiting arms are designed as a structure of multiple elastic arms, and a limiting hole structure is arranged on the corresponding side walls of the electrical connector body. When the multiple elastic arms penetrate into the limiting holes inward, they are squeezed towards the central axis direction, so as to smoothly penetrate into the limiting holes. The inner ends of the multiple elastic arms are designed with a first blocking part, which is in abutting cooperation with the first anti-displacement part at the inner end of the limiting hole, and can effectively prevent the limiting arms from moving outwards, locking the inner ends of the limiting arms within the electrical connector. The outer ends of the limiting arms are designed with a second restricted part with a larger size, and a second limiting part is designed at the corresponding side walls of the insulating housing. Through the design of the restricted parts at the inner and outer ends, the electrical connector body can be limited in the lateral direction, preventing the electrical connector body from loosening in the length direction of the limiting wall. A third limiting part for limiting the metal sheet is also designed at the outer end of each limiting arm, which can realize the limiting cooperation with the metal sheet.

[0050] The above embodiments only express the preferred implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An electrical connector, characterized in that: include: The insulating housing has a plug-in cavity extending through the plug-in direction; The electrical connector body is inserted into the plug-in cavity along the plug-in direction; as well as A limiting structure is inserted from opposite sides of the insulating shell and cooperates with the electrical connector body to limit the movement of the electrical connector body along the plug-in direction; the limiting structure includes two relatively arranged limiting units, each of which includes a limiting arm, a first limiting portion arranged at the inner end of the limiting arm, and a second limiting portion arranged at the outer end of the limiting arm; the opposite side walls of the insulating shell are provided with through holes for the corresponding limiting arms and the first limiting portion to pass through, and a second limiting portion for limiting the inward movement of the second limiting portion; the opposite sides of the electrical connector body are provided with a first limiting portion for limiting the outward movement of the first limiting portion.

2. The electrical connector according to claim 1, wherein: Each of the first limiting portions includes a limiting hole arranged on the corresponding side wall of the electrical connector body and a first stopping portion arranged at the limiting hole; the first limiting portion includes a plurality of elastic arms and a first obstructed portion arranged on the elastic arm at a position corresponding to the first stopping portion; the elastic arm is passed through the limiting hole, and the first obstructed portion is blocked by the first stopping portion and cannot move outward.

3. The electrical connector according to claim 2, wherein: The limiting hole is defined as a clamping hole, and the first stop portion is defined as a clamping portion; the first limiting portion is defined as a harpoon-shaped buckle arranged at the inner end of the limiting arm.

4. The electrical connector according to claim 2, wherein: The inner end of the limiting arm is provided with at least one slit, and the at least one slit passes through the inner end surface of the limiting arm along the length direction of the limiting arm to separate the inner end of the limiting arm into a plurality of the elastic arms; the inner end of the limiting hole is provided with a accommodating cavity with a lateral dimension larger than the limiting hole, and the outer wall of the accommodating cavity surrounding the periphery of the limiting hole forms the first stop portion; the first obstructed portion is defined as a barb portion provided at the inner end of the elastic arm, and the outer side surface of the barb portion stops at the first stop portion.

5. The electrical connector according to claim 4, wherein: The electrical connector body includes a metal shell and a plug-in component arranged in the metal shell along the plug-in direction, and the plug-in component includes an insulating body and a terminal assembly integrally formed with the insulating body; the limiting hole passes through the corresponding side wall of the metal shell along the thickness direction of the metal shell; a groove with a lateral dimension larger than the limiting hole is provided on the side of the insulating body facing the limiting hole, and the groove and the opposite side wall enclose the accommodating cavity; the inner side surface of the side wall around the periphery of the limiting hole forms the first stop portion.

6. The electrical connector according to claim 1, wherein: The second limiting portion is defined as a limiting block having a lateral dimension greater than that of the limiting arm; the second limiting portion is defined as a limiting groove arranged at a position of the insulating shell corresponding to the limiting block, and the bottom surface of the limiting groove is used to limit the inward movement of the limiting block.

7. The electrical connector according to claim 6, wherein: A metal sheet is disposed across each of the limiting arms, and each of the metal sheets is located on the inner side of the limiting block; each limiting block is provided with a third limiting portion for limiting the movement of the metal sheet along the transverse direction, and a third limiting portion is disposed on each of the metal sheets at a position corresponding to the third limiting portion.

8. The electrical connector according to claim 7, wherein: The third limiting portion may be defined as a limiting concave portion, and the third restricting portion may be defined as a restricting convex portion that cooperates with the limiting concave portion in a limiting manner.

9. The electrical connector according to claim 8, wherein: The limiting recess penetrates the inner side surface of the limiting block inwardly, and the bottom surface of the limiting recess and the corresponding side surface of the limiting arm are located in the same plane.

10. The electrical connector according to claim 7, wherein: The third limiting portion may be defined as a limiting convex portion, and the third restricting portion may be defined as a restricting concave portion that cooperates with the limiting convex portion in a limiting manner.

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