Electric connector

Abstract

The invention provides an electric connector, and relates to the technical field of electronic equipment. The electric connector comprises a drawing shell, an upper terminal assembly, a middle iron sheet, a lower terminal assembly and an inner shell. The drawing shell is arranged to be in a rectangular cylinder shape. The upper terminal assembly comprises an upper-layer terminal and an upper tongue piece, and the upper-layer terminal is arranged on the upper tongue piece through injection molding; two elastic conducting parts are arranged on the middle iron sheet, and a pin with a grounding function is arranged on the middle iron sheet; the lower terminal assembly comprises a lower-layer terminal and a lower tongue piece, the lower-layer terminal is arranged on the lower tongue piece in an injection molding manner, and the middle iron sheet is fixedly arranged between the upper tongue piece and the lower tongue piece through an adhesive; the inner shell comprises a mounting cylinder, the upper tongue piece and the lower tongue piece are sleeved with the drawing shell, and the drawing shell is sleeved with the mounting cylinder which is communicated with the drawing shell; the bonding colloid does not cover the two conduction parts, and the two conduction parts can be conducted with the side wall of the drawing shell. The electric connector can improve the anti-interference performance between internal and external signals.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an electric connector. Background Art

[0002] With the rapid development of electronic technology, electrical connectors have become an indispensable part of electronic equipment. TYPE-C connectors have double-row terminals, which can be plugged in from both sides. Due to this feature, TYPE-C connectors are widely used in electrical connectors. However, the existing TYPE-C connectors with two rows of terminals often have their use effects affected by mutual interference between internal and external signals. Summary of the invention

[0003] An object of the present invention is to provide an electrical connector which can improve the anti-interference performance between internal and external signals.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Electrical connector, comprising:

[0006] A pumping shell, wherein the pumping shell is configured in a rectangular cylindrical shape;

[0007] An upper terminal assembly, comprising an upper terminal and an upper tongue, wherein the upper terminal is injection-molded and arranged on the upper tongue;

[0008] A middle iron sheet, wherein two elastic conducting parts are arranged on the middle iron sheet, and a pin with a grounding function is arranged on the middle iron sheet;

[0009] The lower terminal assembly comprises a lower terminal and a lower tongue piece, wherein the lower terminal is injection molded on the lower tongue piece, and the middle iron sheet is fixed between the upper tongue piece and the lower tongue piece by means of an adhesive colloid;

[0010] The inner shell includes a mounting tube, the draw-out shell is sleeved on the upper tongue piece and the lower tongue piece, the mounting tube is sleeved on the draw-out shell and is in conduction with the draw-out shell;

[0011] The adhesive colloid does not cover the two conducting parts, and the two conducting parts can be conducted with the side wall of the extraction shell.

[0012] As a further technical solution, a plurality of the pins are staggeredly arranged on the middle iron sheet.

[0013] As a further technical solution, the two conducting portions are arranged relatively to the middle iron sheet along direction A and are symmetrical about the center line of the middle iron sheet.

[0014] As a further technical solution, the second end of the extraction shell is provided with an abutment portion, which extends in a ring shape along the circumference of the extraction shell, and a side of the abutment portion away from the extraction shell abuts against the inner wall of the mounting tube.

[0015] As a further technical solution, the side of the abutment portion facing away from the extraction shell is connected to the inner wall of the installation tube by laser spot welding.

[0016] As a further technical solution, a plurality of curing through holes are staggeredly arranged in the middle of the middle iron sheet.

[0017] As a further technical solution, along direction A, two first limiting portions are relatively arranged on the middle iron sheet, and two first limiting grooves are correspondingly arranged on the upper tongue piece. When the middle iron sheet is fixedly arranged between the upper tongue piece and the lower tongue piece, the two first limiting portions are limitedly arranged in the two first limiting grooves one by one.

[0018] As a further technical solution, the inner shell further comprises a mounting plate fixedly connected to the mounting tube, and after the mounting tube is sleeved on the draw-out shell, the mounting plate abuts against the end surface of the lower tongue piece away from the upper tongue piece;

[0019] Along the A direction, two second limiting portions are spaced apart on the mounting plate, and both of the two second limiting portions extend and bend toward the direction close to the upper tongue piece, and both are in limiting contact with the upper end surface of the lower tongue piece.

[0020] As a further technical solution, the electrical connector also includes a shell, which is arranged on the side of the upper tongue piece away from the lower tongue piece. Along the direction A, two third limiting portions are relatively arranged on the shell, and the two third limiting portions extend and bend in the direction close to the lower tongue piece, and both are limitedly abutted against the end face of the lower tongue piece away from the upper tongue piece.

[0021] As a further technical solution, at least one limiting column is arranged on the end surface of the upper tongue piece facing away from the lower tongue piece, and an avoidance groove allowing the corresponding limiting column to pass through is arranged on the outer shell.

[0022] Compared with the prior art, the electrical connector provided by the present invention has the following technical advantages:

[0023] Since the adhesive colloid does not cover the two conducting parts, and both conducting parts can be conducted with the side wall of the draw-out shell, and at the same time, the draw-out shell is sleeved on the upper tongue piece and the lower tongue piece, and the mounting tube is sleeved on the draw-out shell; in this way, the middle iron sheet can be conducted with the draw-out shell through the two conducting parts, and then conducted with the inner shell through the draw-out shell, so that the middle iron sheet, the draw-out shell and the inner shell cooperate with each other to form a shielding loop, thereby improving the anti-interference performance between the internal and external signals of the electrical connector, so as to improve the use effect of the electrical connector. At the same time, since the middle iron sheet is provided with a pin that can be grounded, the probability of signal interference between the upper terminal and the lower terminal can be further reduced by grounding the middle iron sheet, thereby further improving the signal anti-interference performance of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0025] Figure 1 is a disassembly diagram of an electrical connector provided by an embodiment of the present invention;

[0026] Figure 2 is a cross-sectional view of an electrical connector provided by an embodiment of the present invention;

[0027] Figure 3 is a cross-sectional view of the conductive portion and the drawer shell in the electrical connector provided by the embodiment of the present invention in abutment with each other;

[0028] Figure 4 It is a schematic structural diagram of a middle iron sheet in an electrical connector provided by an embodiment of the present invention;

[0029] Figure 5 is a partial structural schematic diagram of an electrical connector provided by an embodiment of the present invention from a first viewing angle;

[0030] Figure 6 is a schematic structural diagram of an inner shell in an electrical connector provided by an embodiment of the present invention;

[0031] Figure 7 is a partial structural schematic diagram of an electrical connector provided by an embodiment of the present invention from a second viewing angle;

[0032] Figure 8 It is a schematic diagram of the structure of an electrical connector provided by an embodiment of the present invention.

[0033] In the figure:

[0034] 100, extraction shell; 110, abutment portion;

[0035] 210, upper terminal; 220, upper tongue; 222, limiting column;

[0036] 300, middle iron sheet; 310, conducting portion; 320, pin; 330, curing through hole; 340, first limiting portion;

[0037] 410, lower terminal; 420, lower tongue; 422, second limiting groove;

[0038] 500, inner shell; 510, mounting tube; 520, mounting plate; 521, second limiting portion; 522, first clamping portion;

[0039] 600, housing; 610, third limiting portion. DETAILED DESCRIPTION

[0040] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0041] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0042] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0043] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0044] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0045] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0046] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0047] Specific combination Figures 1 to 8As shown, the electrical connector provided in this embodiment can improve the anti-interference between internal and external signals, thereby ensuring the use effect of the electrical connector. The electrical connector includes a drawer shell 100, an upper terminal assembly, a middle iron sheet 300, a lower terminal assembly and an inner shell 500: the drawer shell 100 is configured as a rectangular cylinder; the upper terminal assembly includes an upper terminal 210 and an upper tongue 220, and the upper terminal 210 is injection molded on the upper tongue 220; the middle iron sheet 300 is provided with two elastic conductive parts 310, and the middle iron sheet 300 is provided with a pin 320 with a grounding function; the lower terminal assembly includes a lower terminal 410 and a lower tongue 4 20, the lower terminal 410 is injection molded on the lower tongue piece 420, and the middle iron sheet 300 is fixed between the upper tongue piece 220 and the lower tongue piece 420 by an adhesive colloid; the inner shell 500 includes a mounting tube 510, the draw-out shell 100 is sleeved on the upper tongue piece 220 and the lower tongue piece 420, the mounting tube 510 is sleeved on the draw-out shell 100, and is conductive with the draw-out shell 100; the adhesive colloid does not cover the two conductive parts 310, and the two conductive parts 310 can be conductive with the side wall of the draw-out shell 100.

[0048] Since the adhesive colloid does not cover the two conducting parts 310, and the two conducting parts 310 can be connected to the side wall of the draw-out shell 100, at the same time, the draw-out shell 100 is sleeved on the upper tongue piece 220 and the lower tongue piece 420, and the mounting tube 510 is sleeved on the draw-out shell 100; in this way, the middle iron sheet 300 can be connected to the draw-out shell 100 through the two conducting parts 310, and then connected to the inner shell 500 through the draw-out shell 100, so that the middle iron sheet 300, the draw-out shell 100 and the inner shell 500 cooperate with each other to form a shielding loop, thereby improving the anti-interference performance between the internal and external signals of the electrical connector, so as to improve the use effect of the electrical connector. At the same time, since the middle iron sheet 300 is provided with a pin 320 that can be grounded, therefore, by grounding the middle iron sheet 300, the probability of signal interference between the upper terminal 210 and the lower terminal 410 is further reduced, thereby further improving the signal anti-interference performance of the electrical connector.

[0049] In order to further improve the grounding effect of the middle iron sheet 300 and the anti-interference performance of the electrical connector, in this embodiment, a plurality of pins 320 are staggeredly arranged on the middle iron sheet 300. The number and position of the pins 320 are adaptively adjusted according to actual needs and are not specifically limited here.

[0050] In order to further improve the stability of the shielding loop formed by the conduction between the middle iron sheet 300 and the drawer shell 100 , in this embodiment, the two conducting portions 310 are relatively arranged on the middle iron sheet 300 along the A direction, and the two conducting portions 310 are symmetrical about the center line of the middle iron sheet 300 .

[0051] Preferably, the second end of the drawer shell 100 is provided with an abutment portion 110 , which extends in a ring shape along the circumference of the drawer shell 100 , and a side of the abutment portion 110 facing away from the drawer shell 100 abuts against the inner wall of the mounting tube 510 .

[0052] Specific combination Figure 7 As shown, by setting an annular abutment portion 110 to abut against the drawer shell 100, on the first hand, the conduction effect of the drawer shell 100 and the installation tube 510 is ensured, so that the inner shell 500, the drawer shell 100, and the middle iron sheet 300 cooperate with each other to form a completely shielded loop, preventing internal and external signal interference, so as to further improve the anti-interference ability of the electrical connector; on the second hand, the dustproof effect between the inner shell 500 and the drawer shell 100 is improved, the use effect of the electrical connector is ensured, and its service life is extended; on the third hand, when the installation tube 510 sleeve abuts against the drawer shell 100, the connection strength between the outer shell 600 and the drawer shell 100 is improved, so as to improve the overall strength of the electrical connector, thereby improving the overall strength and impact resistance of the electrical connector.

[0053] In order to further improve the connection strength between the extraction shell 100 and the installation tube 510, in this embodiment, the side of the abutment portion 110 facing away from the extraction shell 100 is laser spot welded to the inner wall of the installation tube 510. The position and number of spot welding are not specifically limited in this embodiment. In other embodiments, the connection method between the extraction shell 100 and the installation tube 510 can be selected from other welding methods or integrated molding methods according to actual needs, which will not be repeated here.

[0054] After the middle iron sheet 300 is placed between the upper tongue piece 220 and the lower tongue piece 420, the middle iron sheet 300 is fixedly arranged between the upper tongue piece 220 and the lower tongue piece 420 by bonding with adhesive colloid; and since the curing through hole 330 is arranged on the middle iron sheet 300, during the bonding process, part of the adhesive colloid passes through the curing through hole 330 and solidifies; in this way, the fixed connection effect of the middle iron sheet 300 is ensured, and at the same time, the bonding force between the upper tongue piece 220 and the lower tongue piece 420 is increased to further enhance the overall strength of the electrical connector. In order to further enhance the fixed connection effect of the middle iron sheet 300 and increase the bonding force between the upper tongue piece 220 and the lower tongue piece 420, in this embodiment, a plurality of curing through holes 330 are staggeredly arranged in the middle of the middle iron sheet 300. The number of curing through holes 330 arranged on the middle iron sheet 300 is adaptively set according to actual needs, and is not specifically limited here.

[0055] Preferably, along direction A, two first limiting portions 340 are relatively arranged on the middle iron sheet 300, and two first limiting grooves are correspondingly arranged on the upper tongue piece 220. When the middle iron sheet 300 is fixedly arranged between the upper tongue piece 220 and the lower tongue piece 420, the two first limiting portions 340 are limitedly arranged in the two first limiting grooves one by one.

[0056] The two first limiting grooves are both recessed in the direction away from the lower tongue piece 420, and the depths of the two first limiting grooves are the same as the thickness of the corresponding first limiting portion 340, and a storage cavity for accommodating the middle iron sheet 300 is provided on the side of the upper tongue piece 220 close to the lower tongue piece 420, and the two first limiting grooves are both connected to the storage cavity. After the middle iron sheet 300 is placed in the storage cavity, the two first limiting portions 340 are limitedly arranged in the two first limiting grooves one by one, and the upper end surface of the corresponding area in the middle iron sheet 300 is flush with the lower end surface of the upper tongue piece 220. Such a setting, on the one hand, limits the relative position of the middle iron sheet 300 and the upper tongue piece 220 in the axial direction and the A direction of the drawer shell 100; on the other hand, ensures that the upper tongue piece 220 and the lower tongue piece 420 are closely fitted, thereby further improving the strength of the electrical connector.

[0057] Preferably, the inner shell 500 also includes a mounting plate 520 fixedly connected to the mounting tube 510. After the mounting tube 510 is sleeved on the extraction shell 100, the mounting plate 520 abuts against the end surface of the lower tongue piece 420 facing away from the upper tongue piece 220. Along the A direction, two second limiting portions 521 are spaced apart on the mounting plate 520, and the two second limiting portions 521 both extend and bend in the direction close to the upper tongue piece 220, and both abut against the upper end surface of the lower tongue piece 420.

[0058] By providing two second limiting portions 521 that can limit and abut against the upper end surface of the lower tongue piece 420, the connection strength between the inner shell 500 and the lower tongue piece 420 is further improved, thereby further improving the overall connection strength and structural stability of the electrical connector.

[0059] Furthermore, a plurality of first clamping parts 522 are arranged at intervals on the mounting plate 520, and a second clamping part is correspondingly arranged on the end surface of the lower tongue piece 420 facing away from the upper tongue piece 220, and the plurality of first clamping parts 522 are clamped one by one to limit the plurality of second clamping parts. Such arrangement reduces the difficulty of assembling the inner shell 500, and further limits the relative position of the inner shell 500 and the lower tongue piece 420 in the axial direction and the A direction of the drawer shell 100, so as to further improve the connection strength and structural stability. The number and position of the first clamping parts 522 are adaptively adjusted according to the actual situation, and are not specifically limited here.

[0060] In addition, the configuration of the first clamping portion 522 is not specifically limited. By limiting the first clamping portion 522 and clamping it to the corresponding second clamping portion, the difficulty of assembling the inner shell 500 is reduced, and the technical effect of further limiting the relative position of the inner shell 500 and the lower tongue piece 420 is achieved. In this embodiment, there are two exemplary configurations of the first clamping portion 522, as shown in FIG. Figure 7 shown.

[0061] Preferably, the electrical connector further comprises a housing 600, which is arranged on a side of the upper tongue piece 220 away from the lower tongue piece 420. Along the A direction, two third limiting portions 610 are arranged on the housing 600 in a relative manner. The two third limiting portions 610 extend and bend in a direction close to the lower tongue piece 420, and are both in position-limiting contact with the end face of the lower tongue piece 420 away from the upper tongue piece 220. By providing the two third limiting portions 610 in position-limiting contact with the lower end face of the lower tongue piece 420, the connection strength and connection tightness between the housing 600 and the lower tongue piece 420 are improved, thereby improving the overall strength and impact resistance of the electrical connector. In order to further improve the self-strength of the housing 600, in this embodiment, the housing 600 and the two third limiting portions 610 are integrally formed.

[0062] Preferably, two second limiting grooves 422 are arranged on the end surface of the lower tongue piece 420 away from the upper tongue piece 220, and the two third limiting portions 610 are correspondingly limited and clamped in the two second limiting grooves 422. The depth of the second limiting grooves 422 is consistent with the thickness of the third limiting portions 610. When the two third limiting portions 610 are correspondingly limited and clamped in the two second limiting grooves 422, the third limiting portions 610 are flush with the lower end surface of the lower tongue piece 420. In this way, on the one hand, the third limiting portions 610 cooperate with the corresponding second limiting grooves 422 to limit the relative position of the housing 600 and the lower tongue piece 420 in the axial direction of the drawing shell 100, so as to further improve the overall strength and impact resistance; on the other hand, since the third limiting portions 610 are located in the corresponding second limiting grooves 422, the space volume of the electrical connector can be reduced.

[0063] Furthermore, at least one limiting column 222 is provided on the end surface of the upper tongue piece 220 facing away from the lower tongue piece 420, and an avoidance groove is provided on the housing 600 to allow the corresponding limiting column 222 to pass through. When the two third limiting portions 610 are limitedly engaged with the two second limiting grooves 422 one by one, the limiting column 222 passes through the corresponding avoidance groove to further improve the connection strength and tightness between the housing 600 and the lower tongue piece 420. The number and position of the limiting column 222 are adaptively set according to actual conditions and are not specifically limited here.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An electrical connector, characterized in that: include: A pumping shell (100), wherein the pumping shell (100) is configured in a rectangular cylindrical shape; An upper terminal assembly comprises an upper terminal (210) and an upper tongue piece (220), wherein the upper terminal (210) is injection-molded and arranged on the upper tongue piece (220); A middle iron sheet (300), wherein two elastic conducting parts (310) are arranged on the middle iron sheet (300), and a pin (320) having a grounding function is arranged on the middle iron sheet (300); A lower terminal assembly comprises a lower terminal (410) and a lower tongue piece (420), wherein the lower terminal (410) is injection-molded and arranged on the lower tongue piece (420), and the middle iron sheet (300) is fixedly arranged between the upper tongue piece (220) and the lower tongue piece (420) by means of an adhesive colloid; The inner shell (500) comprises a mounting tube (510), the draw-out shell (100) is sleeved on the upper tongue piece (220) and the lower tongue piece (420), and the mounting tube (510) is sleeved on the draw-out shell (100) and is in conduction with the draw-out shell (100); The adhesive colloid does not cover the two conducting parts (310), and the two conducting parts (310) can both be in conduction with the side wall of the extraction shell (100).

2. The electrical connector according to claim 1, characterized in that: A plurality of pins (320) are staggeredly arranged on the middle iron sheet (300).

3. The electrical connector according to claim 1, characterized in that: The two conducting portions (310) are arranged opposite to each other on the middle iron sheet (300) along direction A and are symmetrical about the center line of the middle iron sheet (300).

4. The electrical connector according to claim 1, characterized in that: The second end of the extraction shell (100) is provided with an abutment portion (110), which extends in a ring shape along the circumference of the extraction shell (100), and the side of the abutment portion (110) facing away from the extraction shell (100) abuts against the inner wall of the mounting tube (510).

5. The electrical connector according to claim 4, characterized in that: The side of the abutment portion (110) facing away from the extraction shell (100) is connected to the inner wall of the installation cylinder (510) by laser spot welding.

6. The electrical connector according to claim 1, characterized in that: A plurality of curing through holes (330) are staggeredly arranged in the middle of the middle iron sheet (300).

7. The electrical connector according to claim 1, characterized in that: Along the A direction, two first limiting portions (340) are relatively arranged on the middle iron sheet (300), and two first limiting grooves are correspondingly arranged on the upper tongue piece (220). When the middle iron sheet (300) is fixedly arranged between the upper tongue piece (220) and the lower tongue piece (420), the two first limiting portions (340) are correspondingly arranged in the two first limiting grooves.

8. The electrical connector according to claim 1, characterized in that: The inner shell (500) further comprises a mounting plate (520) fixedly connected to the mounting tube (510); after the mounting tube (510) is sleeved on the extraction shell (100), the mounting plate (520) abuts against the end surface of the lower tongue piece (420) facing away from the upper tongue piece (220); Along direction A, two second limiting portions (521) are spaced apart on the mounting plate (520), and both of the two second limiting portions (521) extend and bend in a direction close to the upper tongue piece (220), and both are in limiting contact with the upper end surface of the lower tongue piece (420).

9. The electrical connector according to any one of claims 1 to 8, characterized in that: The electrical connector also includes a shell (600), which is arranged on a side of the upper tongue piece (220) facing away from the lower tongue piece (420). Along direction A, two third limiting portions (610) are relatively arranged on the shell (600), and the two third limiting portions (610) extend and bend in a direction close to the lower tongue piece (420), and are both in limiting contact with the end face of the lower tongue piece (420) facing away from the upper tongue piece (220).

10. The electrical connector according to claim 9, characterized in that: At least one limiting column (222) is provided on the end surface of the upper tongue piece (220) facing away from the lower tongue piece (420), and an avoidance groove allowing the corresponding limiting column (222) to pass through is provided on the housing (600).

Images