TWM614728U - Connector having anti-reverse insertion structure - Google Patents

Abstract

This creation is a connector with an anti-insertion structure, including an insulating body, at least one connecting terminal set and a shell, wherein the connecting terminal set can be assembled into the insulating body, and the insulating body can be positioned to the In the assembly space, the rear inner surface of the casing can be spaced a distance from the rear outer surface of the insulating body to form a mating groove; at least one anti-insertion can be provided between the corresponding front side of the casing and the insulating body Structure; In the case that the other connector and the connector are plugged together, and the plugging direction is correct, one of the butting portions of the other connector can extend and be accommodated in the butting groove; in the other When the connector and the connector are plugged in and the plugging direction is wrong, the mating portion of the other connector will be blocked by the anti-reversal insertion structure.

Description

Connector with anti-reverse insertion structure

This creation is about connectors, especially a connector with a butting groove and anti-reverse insertion structure on it.

According to the progress of communication technology and electronic technology, electronic devices with various functions, such as mobile power devices that can be carried around for continuous power supply of mobile phones, mobile phones that allow people to communicate at both ends of the world, can satisfy people anytime, anywhere The walkman that listens to music and the personal computer (Personal Computer) that can help people deal with various things have become indispensable tools in modern people's life and work.

In addition, various electronic devices (such as smart phones, tablet computers, desktop computers, notebook computers, digital cameras, etc.) must be The fuselage is equipped with a signal connector. Generally speaking, the signal connector refers to all connecting components and accessories used in electronic signals and power supplies. It is a bridge for all signals. Its quality affects the transmission of current and signals. Reliability has an impact, and it is also closely related to the operation of electronic devices. In addition, through the function of signal connectors, multiple electronic devices can be connected into a complete system to transmit electronic signals or power to each other. Therefore, it can be seen that signal connectors In fact, each electronic device is an indispensable element for realizing a predetermined function.

With the change of use and installation position, the connector also has a variety of different structural types to adapt to and meet the needs of use. For example, with the popularization of the concept and application of smart vehicles, the demand for automotive connectors used by on-board computers has also risen sharply. Among them, the problem with automotive connectors is that the Vibration of varying degrees, in this case, is likely to cause the two mated car connectors to loosen and separate under long-term use. Therefore, the applicant has developed a connector 11 which is provided with a mating groove 111. When the connector 11 and the other matching connector 12 are inserted into each other, one of the other connectors 12 The mating portion 121 can extend into the mating groove 111, so that the connector 11 and the other connector 12 can be firmly inserted and combined.

However, in actual use, please refer to Figure 1. When the staff is obstructed in view (ie blind mating), the other connector 12 is plugged in the wrong direction (ie, reversed). In the case of the connector 11, although the mating portion 121 does not correspond to the mating groove 111, if the force exerted by the worker is large, the tongue 122 of the other connector 12 can still be forced into the connector. In the insertion groove 110 of 11, the mating portion 121 is exposed outside the connector 11, causing the connectors 11 and 12 to be incorrectly connected, which not only affects the normal operation of the connectors 11 and 12, but also easily causes The components of these connectors 11 and 12 are damaged.

In view of this, how to make the connector have the function of preventing reverse insertion in use, so as to avoid the aforementioned regrets, is a major topic discussed here for this author.

In order to stand out in the fiercely competitive market, the creators rely on years of professional experience in the design, processing and manufacturing of various power or signal connectors, and uphold the research spirit of excellence. After long-term hard research After experimentation, I finally developed a connector with anti-reverse insertion structure of this creation. With the advent of this creation, the aforementioned problems can be effectively solved to provide users with a better experience.

One purpose of this creation is to provide a connector with an anti-reverse insertion structure, which includes an insulating body, at least one connecting terminal set and a shell, wherein the top side of the insulating body is provided with at least one insertion interface, and At least one accommodating space is provided, and the accommodating space can be connected to the corresponding plug-in interface; the connecting terminal set can be assembled into the insulating body, and the connecting terminal set includes at least a plurality of metal terminals, and the front ends of the metal terminals The accommodating space can be exposed outside; an assembly space is provided in the housing, and the insulating body can be positioned in the assembly space. Furthermore, the rear inner surface of the housing can be separated from the rear outer surface of the insulating body by a distance to A mating groove is formed; at least one anti-insertion structure can be provided between the corresponding front side of the housing and the insulating body; when the other connector is inserted into the connector and the insertion direction is correct One of the mating parts of the other connector can extend into and be accommodated in the mating groove; when the other connector and the connector are both plugged, and the plugging direction is wrong, the other connector The docking part of the device will be blocked by the anti-insertion structure. In this way, with the design of the aforementioned anti-reversal insertion structure, it is possible to effectively avoid the inoperability or damage caused by the incorrect insertion of the connector.

Optionally, the inner surface of the front side of the housing can be projected toward the front side of the insulating body with at least one housing protruding portion to form the anti-insertion structure.

Optionally, both ends of the protruding portion of the housing can be connected to the housing respectively, and an abutting surface can be provided in the middle area thereof, and the abutting surface can abut against the outer surface of the front side of the insulating body.

Optionally, the abutting surface is straight.

Optionally, one end of the protruding portion of the housing can be connected to the housing, and the other end of the protruding portion of the housing can abut against the front outer surface of the insulating body.

Optionally, the front outer surface of the insulating body can face the front side of the housing, and at least one body protruding portion can be protrudingly formed to form the anti-insertion structure.

Optionally, the width of the protruding portion of the body may be the same or substantially the same as the width of the insulating body.

Optionally, the thickness in the front and rear direction of the rear side of the insulating body can be 1/3 to 1/2 of the total thickness of the front side of the insulating body and the protruding portion of the body in the front and rear directions.

Optionally, one side of the insulating body is provided with a first positioning groove, and at least one of the sides of the housing is provided with a first positioning piece. When the insulating body is assembled to the housing, the first positioning The sheet can be embedded in the first positioning groove, and the insulating body is subjected to a force from top to bottom, and the bottom of the first positioning groove will be abutted by the first positioning sheet.

Optionally, one side of the insulating body is provided with a second positioning groove, and at least one of the side surfaces of the housing is provided with a second positioning piece. When the insulating body is assembled to the housing, the second positioning The sheet can be inserted into the second positioning groove, and the insulating body is subjected to a force from bottom to top, and the bottom of the second positioning groove will be abutted by the second positioning sheet.

Optionally, the protruding part of the housing is located close to the top of the housing.

Optionally, the anti-insertion structure is a separate element and can be assembled to the housing or the insulating body.

Optionally, the highest point of the anti-reverse insertion structure can not exceed the top surface of the insulating body.

Optionally, the front side of the casing is a flat surface.

In order to facilitate your reviewer to have a further understanding and understanding of the purpose, technical features and effects of this creation, the following examples are provided in conjunction with the diagrams. The detailed description is as follows:

In order to make the purpose, technical content, and advantages of this creation clearer, the following describes the implementation manners disclosed in this creation in further detail in conjunction with specific implementation manners and with reference to the accompanying drawings. Those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this manual, and this creation can be implemented or applied through other different specific embodiments, and the details in this manual can also be based on different viewpoints and applications , Make various modifications and changes without departing from the idea of this creation. In addition, it is stated in advance that the drawings in this creation are merely schematic illustrations, and are not depicted in actual size.

It should be understood that the embodiments used anywhere in the specification of this creation, including the use of any term, are only illustrative, and in no way limit the scope and meaning of this creation or any term. Likewise, this creation is not limited to the various embodiments disclosed in the specification. Although the terms first, second, or third may be used in this document to describe various elements, each element should not be limited by the aforementioned terms. The aforementioned terms are mainly used to distinguish one element from another element, rather than dealing with any element. The components impose any substantial restrictions, and should not limit the assembly or arrangement sequence of the individual components in practical applications. In addition, the directional terms mentioned in the embodiments, such as "upper (top)", "lower (bottom)", "front", "rear", "left", "right", etc., are only directions with reference to the drawings. Therefore, the directional terms used are used to illustrate and not to limit the scope of protection of this creation.

This creation is a connector with an anti-reversal insertion structure. Please refer to Figure 2. In the first embodiment, the connector 2 is a vertical type of board-end connector. Fixed to a circuit board, the connector 2 includes an insulating body 21, at least one connecting terminal set 22, and a housing 23. In order to facilitate the description of the relative relationship between the various components, the As the front position of the component, the upper right of the second figure is the rear position of the component, the upper left of the second figure is the left position of the component, the lower right of the second figure is the right position of the component, and the upper right of the second figure is The upper (top) position of the component, and the bottom (bottom) position of the component is the bottom of the second figure. In addition, the state of the connector in this creation is not limited to the one drawn in Figure 2. The industry can adjust the style of each component according to product requirements, for example: horizontal type connector or sink type Therefore, as long as the connector 2 has the relevant basic structure and functions of the subsequent embodiments, it is the connector 2 to be protected by this creation.

Please refer to Figures 2 and 3, the top side of the insulating body 21 is provided with at least one plug-in interface 210, and at least one accommodating space 211 is provided therein, and the accommodating space 211 can communicate with the plug-in interface 210. The function of the plug-in interface 210 is to allow the terminals of another connector (that is, the mating connector) to extend into the receiving space 211 through the plug-in interface 210, so that the connector 2 and the other connector can form an electrical connection. Connection, and mutual transmission of signals, ie/or power, therefore, the structural design sufficient to constitute the aforementioned function belongs to the plug-in interface 210 referred to in this creation. In addition, the insulating body 21 of this creation is not limited to the state drawn in Figure 3. In other embodiments of this creation, the insulating body 21 can be provided with a plurality of insertion ports 210 and a plurality of accommodating spaces 211 .

Please refer to Figure 3 again. In the first embodiment, the connector 2 can be provided with two sets of connecting terminals 22, and the two sets of connecting terminals 22 can be assembled into the same accommodating space 211, one of which The connecting terminal set 22 is close to the front side of the insulating body 21, and the remaining set of connecting terminal sets 22 is close to the back side of the insulating body 21. However, in other embodiments of the present invention, if the connector 2 is provided with a plurality of accommodating When there is a space 211, each of the connecting terminal groups 22 can be separately placed in different accommodating spaces 211, rather than being limited to the same accommodating space 211, it will be explained first. In addition, the connecting terminal set 22 includes at least a plurality of metal terminals 221. The metal terminals 221 can be used to transmit power or signals, or for grounding purposes. When the connecting terminal set 22 is located in the insulating body 21, each of the metal terminals The top end of 221 can expose the accommodating space 211 to be electrically connected to the terminals of another connector; in addition, the bottom end of each metal terminal 221 can be electrically connected to a circuit board, when the metal terminal 221 is used as a signal Terminal or power terminal, it can transmit power or signal to the circuit board, or receive power or signal from the circuit board; when the metal terminal 221 is used as a ground terminal, it can be connected to the ground of the circuit board line. However, in other embodiments of the present creation, if the configuration of the connector 2 is changed, for example, to a configuration with a wire connector, the aforementioned circuit board can be replaced with a transmission line and connected to the bottom of each metal terminal 221 Terminal phase electrical connection.

Furthermore, in order to facilitate the assembly of the metal terminals 221 into the insulating body 21, in the first embodiment, the connecting terminal set 22 further includes a terminal base 222, which can be made of insulating material, The partial areas of the metal terminals 221 can be respectively located in the terminal base 222. In the first embodiment, the terminal base 222 can be integrally formed near the bottom end of the metal terminals 221 by injection molding. In this way, the metal terminals 221 can be moved simultaneously through the terminal base 222 to smoothly assemble into the insulating body 21, which greatly improves the convenience of assembly. Moreover, when the connector 2 has a plurality of connecting terminal groups 22, the terminal bases 222 can be assembled with each other. In the first embodiment, the corresponding side surfaces of the terminal bases 222 are respectively provided with a positioning portion 2221, The positioning portions 2221 of different terminal bases 222 can be matched with each other, for example, the positioning portion 2221 of the terminal base 222 near the bottom left can be convex; the positioning portion 2221 of the terminal base 222 near the upper right can be concave; When the terminal blocks 222 are assembled, the positioning portion 2221 in the shape of a bump can be inserted into the positioning portion 2221 in the shape of a cavity. However, in other embodiments of the present invention, the industry can adjust the position of the positioning portion 2221 according to product requirements, or the terminal blocks 222 can be assembled to independent components and then assembled to the insulating body 21 together. Inside.

Please refer back to Figures 2 and 3, the housing 23 is provided with an assembly space 230, the assembly space 230 can be matched with the insulating body 21, so that the insulating body 21 can be assembled and positioned in the assembly space 230 , And through the role of the shell 23, to achieve the effects of anti-electromagnetic interference (EMI), as a grounding way and protect the insulating body 21, etc., in the first embodiment, because the connector 2 is a vertical board end connector Therefore, the assembly space 230 can penetrate the housing 23 up and down. When the insulative housing 21 is located in the housing 23, please refer to Figure 4. The rear outer surface of the insulative housing 21 and the rear inner surface of the housing 23 can be separated by a distance to form a pair of connecting grooves. 241, and the height of the rear side of the casing 23 can be higher than the height of the front side; In addition, the inner surface of the front side of the housing 23 can face the front side of the insulating body 21, and at least one housing protruding portion 231 can be protrudingly provided as an anti-insertion structure.

By the way, in the first embodiment, the part of the front side of the housing 23 near the top end will be punched inward to form the housing protrusion 231. Therefore, the front outer surface of the housing 23 will appear In addition, the housing protruding portion 231 will extend into the anti-insertion space 240 and extend toward the front side of the insulating body 21, wherein the two ends of the housing protruding portion 231 (such as the first The left and right ends of Figure 4) can be respectively connected to the housing 23, and an abutting surface 2311 can be provided in the middle area, and the abutting surface 2311 is flat and can abut against the outer front side of the insulating body 21 Surface, but not limited to this. In other embodiments of the present invention, the two ends of the shell protruding portion 231 can also be upper and lower ends, and the abutting surface 2311 can be arc-shaped or other shapes, and does not need to abut the insulating body 21 As long as the housing protrusion 231 can be within the scope of the anti-insertion space 240, the anti-insertion structure referred to in this creation can be formed.

This article will explain the anti-reversal insertion effect that can be achieved by this creation. The "correct direction insertion" mentioned later means that when two connectors are inserted, they can achieve the expected operation (such as: transmitting signal or power). ); "Wrong direction plugging" means that when two connectors are plugged together, they cannot achieve the expected operation (such as transmitting signals or power). Please refer to Figures 5 and 6, when the other connector 3 is inserted into the connector 2 in the correct direction, the tongue 31 of the other connector 3 can smoothly extend into the accommodating space of the insulating body 21 211, and the terminal 311 on the tongue plate 31 can be electrically connected with the metal terminals 221, and at the same time, the mating portion 32 of the other connector 3 can extend into the mating groove 241, so that the two are connected The connectors 2 and 3 can be stably plugged into a whole. In addition, in order to prevent the two connectors 2, 3 from being easily detached, in the first embodiment, at least one inserting hole 233 is opened on the rear side of the housing 23, and the inserting hole 233 can be connected to the mating groove. 241 is connected. When the other connector 3 is plugged into the connector 2 in the correct direction, the embedding block 321 on the mating portion 32 can be inserted into the corresponding embedding hole 233, so that the two connectors 2, 3 The docking relationship is more stable.

In addition, please refer to Figure 7, when the other connector 3 is plugged into the connector 2 in the wrong direction, although the tongue plate 31 of the other connector 3 can correspond to the plug interface 210, However, the mating portion 32 is blocked by the housing protrusion 231 and cannot be displaced downward, so the tongue plate 31 cannot extend into the receiving space 211, avoiding the contact between the terminal 311 on the tongue plate 31 and the accommodating space 211. When the metal terminal 221 is incorrectly connected, and because the mating portion 32 cannot extend into the anti-insertion space 240 or is located outside the housing 23, the user can detect the other connection visually or by hand. The current plugging direction of the connector 3 is wrong, which prevents the two connectors 2 and 3 from being damaged due to incorrect plugging.

Furthermore, this creation is not limited to the anti-insertion structure of the first embodiment. In the second embodiment of this creation, please refer to Figures 8 and 9, as shown in Figs. One end of the 431 can be connected to the housing 23, and the other end of the housing protruding portion 431 will extend into the anti-insertion space 240 and extend toward the front side of the insulating body 21, and can abut against the The outer surface of the front side of the insulating body 21 (but not limited to this), the housing protrusion 431 of the second embodiment, compared with the housing protrusion 231 of the first embodiment, lacks abutment The structure of the surface 2311 means that a part of the front side of the housing 23 near the top end will be punched and broken inward to form the housing protrusion 431. In this way, please refer to FIG. 10, when another connector 3 is inserted into the connector 2 in the wrong direction, although the tongue 31 of the other connector 3 can correspond to the insertion interface 210, , The mating portion 32 is blocked by the housing protrusion 431 and cannot be displaced downwards, so as to prevent the two connectors 2 and 3 from being connected incorrectly.

In addition, although the anti-insertion structures listed in the first and second embodiments are all formed by bending and deforming the front side of the housing 23, so that the outer surface of the front side of the housing 23 can present a concave shape. In other embodiments of creation, the outer surface of the front side of the casing 23 can be kept flat, and the inner surface of the front side of the casing 23 is convexly provided with anti-reverse insertion structures, such as bumps, and the aforementioned anti-reverse insertion The structure is not limited to being integrally formed with the housing 23, and can also be assembled to the housing 23 by an independent element, as long as the anti-insertion structure is located in the anti-insertion space 240 (that is, the housing 23 and the insulating body 21 The two correspond to the front side). In addition, in the first and second embodiments, the front side of the housing 23 is a flat surface (as shown in Figures 2 and 8), and there is no structure protruding outward.

In addition to being formed by the structure of the housing 23, the anti-insertion structure of this creation can also be formed by the insulating body 21. In the third embodiment of this creation, please refer to Figures 11 and 12. The front outer surface of the insulating body 21 can face the front side of the housing 23, and at least one body protrusion 531 is protruded to form the anti-insertion structure, wherein the space occupied by the protrusion 531 of the body is protruding , Which is equivalent to the anti-insertion space 240 shown in Fig. 4. In the third embodiment, the width of the main body protrusion 531 is the same or substantially the same as the width of the insulating body 21. Therefore, as shown in Fig. 11 As shown in Figures 12 and 12, when the body protrusion 531 is integrally formed with the insulating body 21, the overall front side thickness of the insulating body 21 will be increased to H2 (that is, the front side of the insulating body 21 and the body protrusion 531 are two The total thickness in the front-rear direction) is thicker than the overall front thickness H1 of the insulating body 21 in FIG. 4. Generally speaking, the thickness of the front side and the rear side of the insulating body 21 are approximately the same. Therefore, when the insulating body 21 is provided with the body protrusion 531, the thickness of the back side of the insulating body 21 in the front-to-rear direction can be the The front side of the insulating body 21 and the body protrusion 531 are 1/3 to 1/2 of the total thickness in the front and rear directions.

Continuing, please refer to Figure 13, when another connector 3 is inserted into the connector 2 in the wrong direction, although the tongue plate 31 of the other connector 3 can correspond to the insertion interface 210, However, the mating portion 32 is blocked by the main body protruding portion 531 and cannot be displaced downward to avoid incorrect connection of the two connectors 2 and 3. In addition, in other embodiments of the present creation, the width of the body protrusion 531 can be smaller than the width of the insulating body 21, and the thickness of the body protrusion 531 can be smaller than the thickness of the anti-insertion space 240, as long as it is It is sufficient to be located in the anti-insertion space 240 corresponding to that shown in FIG. 4. In summary, since the anti-insertion structure of this creation (such as the housing protrusions 231, 431, and the main body protrusion 531) is located in the housing 23, the connector 2 is used in storage, transportation and use. In the process, the anti-reverse insertion structure is not susceptible to external force collisions or other negative influences, resulting in deformation or damage, so it can effectively maintain the anti-reverse insertion ability. In addition, the highest point of the anti-insertion structure (such as the housing protrusions 231, 431, and the body protrusion 531) can not exceed the top surface of the insulating body 21, so that the other connector 3 can be connected to each other. No additional grooves are required on the surface.

In addition, in order to ensure the structural stability of the connector 2 itself, at least one of the side surfaces of the insulating body 21 (such as the right side of FIG. 3) is provided with a first positioning groove 212, and the opening direction of the first positioning groove 212 is It is recessed from bottom to top. At least one side of the housing 23 (such as the right side of FIG. 3) is provided with a first positioning piece 232, and the free end (end) of the first positioning piece 232 can face the housing 23 is bent and extended in the inner direction. When the insulating body 21 is assembled into the housing 23, the first positioning piece 232 can be inserted into the first positioning groove 212, and when the other connector 3 is inserted in the correct direction In the case of the connector 2, the insulating body 21 will be subjected to the force (pressure) from the top to the bottom of the other connector 3, and the bottom of the first positioning groove 212 will be resisted by the first positioning piece 232 Because of this, the insulating body 21 cannot be easily separated from the housing 23.

In addition, at least one of the side surfaces of the insulating body 21 (such as the right side of FIG. 3) is also provided with a second positioning groove 214. The opening direction of the second positioning groove 214 is recessed from top to bottom, and the housing 23 At least one of the side surfaces (such as the right side in Figure 3) is provided with a second positioning piece 234, the free end (end) of the second positioning piece 234 can bend and extend toward the inner direction of the housing 23, when the insulating body 21 is assembled into the housing 23, the second positioning piece 234 can be inserted into the second positioning groove 214, when the other connector 3 is to be removed from the connector 2, the insulating body 21 will be The bottom-up force (tension) of the other connector 3, at this time, the bottom of the second positioning groove 214 will be abutted by the second positioning piece 234, so that the insulating body 21 cannot easily Detached from the housing 23. In particular, in order to smoothly assemble the insulative housing 21 into the housing 23, the insulative housing 21 can be placed in the assembling space 230 and then processed on the housing 23 to form a A positioning piece 232 and a second positioning piece 234 are combined first.

Press, the above is only the preferred embodiment of this creation. However, the scope of rights claimed in this creation is not limited to this. Anyone who is familiar with the art can use the technical content disclosed in this creation. Easily considered equivalent changes should fall within the scope of protection of this creation.

[Learning] 11: Connector 110: Socket 111: docking slot 12: Another connector 121: Docking Department 122: tongue plate [This Creation] 2: connector 21: Insulating body 210: plug interface 211: accommodation space 212: first positioning slot 214: second positioning slot 22: Connect the terminal group 221: Metal terminal 222: terminal block 2221: Positioning Department 23: shell 230: assembly space 231, 431: Shell protrusion 2311: contact surface 232: The first positioning piece 233: Insert hole 234: second positioning piece 240: Anti-reverse insertion space 241: Docking Slot 3: Another connector 31: Tongue plate 311: Terminal 32: Docking Department 321: Embedded Card Block 531: Protruding part of body H1, H2: Front side thickness

[Figure 1] is a schematic cross-sectional view of a conventional connector; [Figure 2] is a perspective view of the connector of the first embodiment of this creation; [Figure 3] is an exploded schematic diagram of the connector of the first embodiment of this creation; [Figure 4] is a top view of the connector of the first embodiment of this creation; [Figure 5] is a schematic cross-sectional view of the connector of the first embodiment of this creation and another connector inserted in the correct direction; [Figure 6] is a three-dimensional schematic diagram of the connector of the first embodiment of this creation and another connector inserted in the correct direction; [Figure 7] is a schematic cross-sectional view of the connector of the first embodiment of this creation and another connector inserted in the wrong direction; [Figure 8] is a perspective view of the casing of the second embodiment of this creation; [Figure 9] is a top view of the connector of the second embodiment of this creation; [Figure 10] is a schematic cross-sectional view of the connector of the second embodiment of the present creation and another connector inserted in the wrong direction; [Figure 11] is an exploded schematic diagram of the connector of the third embodiment of this creation; [Figure 12] is a top view of the connector of the third embodiment of this creation; and [Figure 13] is a schematic cross-sectional view of the third embodiment of the creation of the connector and another connector inserted in the wrong direction.

2: connector

21: Insulating body

210: plug interface

211: accommodation space

214: second positioning slot

221: Metal terminal

23: shell

231: Shell protrusion

2311: contact surface

232: The first positioning piece

233: Insert hole

240: Anti-reverse insertion space

Claims (14)

A connector with anti-reverse insertion structure, including: An insulating body, at least one plug-in interface is opened on the top side, and at least one accommodating space is provided in the housing, and the accommodating space can communicate with the corresponding plug-in interface; At least one connecting terminal set can be assembled into the insulating body, and the connecting terminal set includes at least a plurality of metal terminals, and the front ends of the metal terminals can expose the accommodating space; and A housing with an assembly space in which the insulating body can be positioned, wherein the rear inner surface of the housing can be separated from the rear outer surface of the insulating body by a distance to form a pair of connecting grooves; At least one anti-insertion structure can be provided between the corresponding front side of the housing and the insulating body; when the other connector and the connector are both inserted and the insertion direction is correct, the other connection One of the mating parts of the connector can extend into and be accommodated in the mating groove; in the case that the other connector and the connector are plugged in, and the insertion direction is wrong, the mating part of the other connector Will be blocked by the anti-insertion structure. The connector according to claim 1, wherein the inner surface of the front side of the housing can face the front side of the insulating body, and at least one protrusion of the housing is protruded to form the anti-insertion structure. The connector according to claim 2, wherein both ends of the protruding portion of the housing can be respectively connected to the housing, and an abutting surface can be provided in the middle area thereof, and the abutting surface can abut against the insulating body The outer surface of the front side. The connector according to claim 3, wherein the abutting surface is flat and straight. The connector according to claim 2, wherein one end of the protruding portion of the housing can be connected to the housing, and the other end of the protruding portion of the housing can abut against the outer surface of the front side of the insulating body. The connector according to claim 1, wherein the outer surface of the front side of the insulating body can face the front side of the housing, and at least one body protruding part is protruded to form the anti-insertion structure. The connector according to claim 6, wherein the width of the protruding portion of the body is the same or substantially the same as the width of the insulating body. The connector according to claim 7, wherein the thickness of the back side of the insulating body in the front-rear direction can be 1/3 to 1/2 of the total thickness of the front side of the insulating body and the protruding portion of the body in the front-rear direction . The connector according to any one of claims 1 to 8, wherein one side of the insulating body is provided with a first positioning groove, at least one of the side surfaces of the housing is provided with a first positioning piece, and the insulating body is When assembled to the housing, the first positioning piece can be inserted into the first positioning groove, and the insulating body is subjected to a force from top to bottom, and the bottom of the first positioning groove will be subjected to the first positioning groove. The abutment of the positioning piece. The connector according to claim 9, wherein one side of the insulating body is provided with a second positioning groove, at least one of the side surfaces of the housing is provided with a second positioning piece, and the insulating body is assembled to the housing In the case that the second positioning piece can be embedded in the second positioning groove, and the insulating body is subjected to a force from bottom to top, the bottom of the second positioning groove will be abutted by the second positioning piece . The connector according to any one of claims 2 to 5, wherein the shell protruding portion is located close to the top of the shell. The connector according to claim 1, wherein the anti-insertion structure is a separate component and can be assembled to the housing or the insulating body. The connector according to claim 1, wherein the highest point of the anti-reverse insertion structure can not exceed the top surface of the insulating body. The connector according to claim 1, wherein the front side of the housing is a flat surface.

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