TWM665269U - Connector system with multiple groove structure and connector thereof - Google Patents

Abstract

The invention is a connector system with a multiple groove structure and a connector thereof. The connector can be fixed to a circuit board and includes an insulating body, a plurality of metal terminals and a metal shell, wherein the insulating body is provided with the metal terminals and can be installed in the metal shell. In addition, a first inner wall of the metal shell is provided with a blocking portion, and there is a distance between the blocking portion and the insulating body to form a first groove. The left inner wall and the right inner wall of the metal shell are respectively separated from the insulating body by a distance to form corresponding left grooves and right grooves. In this way, the design of the grooves can enhance the convenience and stability of the plug-in between the connector and the mating connector.

Description

Connector system with multiple groove structure and connector thereof

The invention relates to a connector, and in particular to a connector structure in which a metal shell and an insulating body of the connector have grooves on three sides respectively, so as to achieve multi-directional positioning with a mating connector.

According to the standard, connector refers to all connection components and their accessories used in electronic signal and power transmission. Its main function is to establish and maintain the connection between circuits. It is not only responsible for transmitting power, but also covers data transmission. It is an important component in any modern electronic system. From mobile phones, computers to large industrial machinery and equipment, all rely on connectors to complete their basic functions.

Generally speaking, the plug-in stability between two connectors will affect the reliability of current and signal transmission. Current connectors are generally fixed only through the terminal mechanism between the two connectors. For example, one connector is provided with a docking groove, and the inner wall surface of the docking groove is provided with terminals; the other connector is provided with a tongue plate, and the tongue plate is provided with terminals. The tongue plate can be inserted into the docking groove, so that the terminals of the connectors are connected to the electrical devices. However, the stability of the above-mentioned fixing method is poor. When the connectors are hit or shaken by external forces, they are prone to detachment.

In addition, as the purpose and installation location change, connectors also have a variety of different structural types to adapt to and meet the needs of use, but no matter what type of connector, it is usually designed to be thinner and lighter. The above design concept will cause the connector shell to be too thin and fragile, and cannot provide better protection. Therefore, how to improve the above problem is a major topic explored in this creation.

In order to stand out in the fiercely competitive market, the creator relied on his rich practical experience in designing, processing and manufacturing various power or signal connectors for many years, and upheld the spirit of continuous improvement. After a long period of hard research and experiments, he finally developed this creation, a connector system and connector with a multiple groove structure, hoping that the advent of this creation will gain market favor.

One of the purposes of the invention is to provide a connector with a multiple groove structure, including an insulating body, a plurality of metal terminals and a metal shell, wherein the front side of the insulating body is provided with at least one docking groove; each of the metal terminals is arranged in the insulating body, and its front section will expose the corresponding docking groove, and its rear section will extend out of the insulating body to be fixed to a connection medium (such as: circuit board or electronic wire, etc.); the front side of the metal shell is provided with a front opening, in which the insulating body can be installed, and the front opening will be connected to the docking groove, and the metal A first inner wall of the shell is provided with a blocking portion, and the blocking portion is opposite to one side of the insulating body, and there is a distance between the blocking portion and the insulating body to form a first groove; a left inner wall and a right inner wall of the metal shell are opposite to each other and are adjacent to the first inner wall, and the left inner wall is spaced a distance from the insulating body to form a left groove, and the right inner wall is spaced another distance from the insulating body to form a right groove. In this way, by the design of the grooves, the convenience and stability of the plug-in between the connector and the docking connector can be enhanced.

Optionally, the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove.

Optionally, the metal shell is divided into a front section area and a rear section area, wherein the front section area is in the form of a frame, and its vertical height is greater than the vertical height of the rear section area.

Optionally, the left-right length of the front section area is smaller than the left-right length of the rear section area.

Optionally, the metal housing is further provided with a left guide structure and a right guide structure, the left guide structure corresponds to the left groove, and the right guide structure corresponds to the right groove.

Optionally, the left inner wall of the metal shell is recessed to form the left guide structure, and the right inner wall of the metal shell is recessed to form the right guide structure.

Optionally, the left guide structure is provided in an area of the blocking portion corresponding to the left groove, and the right guide structure is provided in an area of the blocking portion corresponding to the right groove.

Optionally, the left guide structure is in a protruding form or a recessed form, and the right guide structure is different from the left guide structure and is in a recessed form or a protruding form.

Optionally, the left guide structure and the right guide structure have different heights in the up and down directions.

Optionally, the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove.

Optionally, the metal shell is made of cast iron.

Optionally, the edges of the blocking portion corresponding to the first groove, the left groove and/or the right groove are respectively inclined surfaces, and the inclined surfaces are inclined and expanded from the front to the rear.

Optionally, the connector further comprises a cover, wherein a rear opening is provided on the rear side of the metal shell for the insulating body to extend into the metal shell from the rear to the front, and the cover can be assembled to the rear side of the metal shell and at least cover a partial portion of the rear opening.

Another object of the invention is to provide a connector system with a multiple groove structure, including a circuit board and a connector, and the connector can be fixed to the circuit board and can be close to or across the side edge of the circuit board. The connector includes an insulating body, a plurality of metal terminals and a metal shell, wherein the front side of the insulating body is provided with at least one docking groove; each of the metal terminals can be arranged in the insulating body, and the front section of each of the metal terminals will expose the corresponding docking groove, and the rear section of each of the metal terminals will extend out of the insulating body to be fixed to a connection medium; The front side of the metal shell is provided with a front opening, in which the insulating body can be installed, and the front opening is connected to the docking groove, wherein a first inner wall of the metal shell is provided with a blocking portion, and the blocking portion is opposite to one side of the insulating body, and there is a distance between the blocking portion and the insulating body to form a first groove; a left inner wall and a right inner wall of the metal shell are opposite to each other and are adjacent to the first inner wall, the left inner wall is spaced a distance from the insulating body to form a left groove, and the right inner wall is spaced another distance from the insulating body to form a right groove.

Optionally, the metal shell is divided into a front section area and a rear section area, wherein the front section area is in the form of a frame, and its vertical height is greater than that of the rear section area, and the front section area is located outside the edge of the circuit board.

In order to help you, the review committee, to have a deeper understanding of the purpose, technical features and effects of this creation, we provide an example with diagrams and a detailed description as follows:

In order to make the purpose, technical content and advantages of this creation clearer, the following is further explained in conjunction with specific implementation methods and attached figures. The technical personnel in this field can understand the advantages and effects of this creation, and this creation can be applied through other different specific embodiments. The details in this manual can be modified and changed without deviating from the concept of this creation. In addition, the attached figures of this creation are only for simple schematic illustration and are not drawn according to the actual size. In addition, unless the context clearly indicates or defines otherwise, the meaning of "a" and "the" in this creation includes the plural.

It should be understood that the terms used herein generally have the common meaning in the art, and in the event of a conflict, any definition given herein shall prevail. Since the same thing can be expressed in many ways, the use of alternatives or synonyms does not exclude other synonyms, and the use of terms is illustrative only and does not limit the scope and meaning of this creation or any term. The terms first, second, or third, etc. may be used herein to describe various elements. The aforementioned terms are used to distinguish one element from another, and should not impose any substantial restrictions on any element, nor should they limit the assembly or setting order of each element in practical application. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the scope of protection of this creation. Furthermore, the term "and/or" used herein may include any one or more combinations of the associated listed items as appropriate.

This invention is a connector system with a multiple groove structure and its connector. In order to facilitate the description of the characteristics of the components and the relative position relationship, in the subsequent description, the spatial form of the components is defined according to three mutually orthogonal axes. The aforementioned three axes are the horizontal axis (X axis), the longitudinal axis (Y axis) and the vertical axis (Z axis). Specifically, the horizontal axis (X axis) refers to the left and right extension direction, among which the upper left of Figure 1 1 as the left side direction of the component, and the lower right side of Figure 1 as the right side direction of the component; the longitudinal axis (Y axis) refers to the front-to-back extension direction, wherein the lower left side of Figure 1 is the front side direction of the component, and the upper right side of Figure 1 is the rear side direction of the component; the vertical axis (Z axis) refers to the up-down extension direction, wherein the upper side of Figure 1 is the upper (top) side direction of the component, and the lower side of Figure 1 is the lower (bottom) side direction of the component. In one embodiment, please refer to FIGS. 1 to 4 , the connector system includes a connector C and a circuit board P, wherein the connector C can be fixed to the top surface of the circuit board P, and the positions of the connector C and the circuit board P have the following two installation modes: (1) Part of the area of the connector C is located within the top projection range of the circuit board P, and the other part of the area extends outside the top projection range. In other words, the connector C can cross the side edge position of the circuit board P (as shown in FIGS. 1 and 3 ); or (2) The entire connector C is located within the top projection range of the circuit board P, and the mating surface of the connector C can be close to the side edge of the circuit board P. The aforementioned "close" also includes the situation where the mating surface of the connector C is aligned with the side edge of the circuit board P.

Please refer to Figures 4 and 5. The connector C includes an insulating body 1, a plurality of metal terminals 2, a metal shell 3 and a cover 4. The front side of the insulating body 1 is provided with a docking groove 10. The docking groove 10 can be inserted into a tongue of a docking connector so that the connector C and the docking connector can be plugged into each other. However, this is not limited to this. According to the actual needs of the product, the insulating body 1 can also be provided with a plurality of docking grooves 10. Moreover, the docking grooves 10 can be arranged in the left-right direction or the up-down direction, and the length and shape of each docking groove 10 can be the same or different.

In addition, please refer to Figures 1 to 5 again. The metal terminals 2 can be arranged in the insulating body 1. The metal terminals 2 can be composed of a single type or multiple types of terminals, and the terminal types include but are not limited to power terminals, signal terminals and ground terminals. In this embodiment, part of the metal terminals 2 can be fixed to an upper terminal seat 21 to form an upper terminal set 2A, and the other part of the metal terminals 2 can be fixed to a lower terminal seat 22 to form a lower terminal set 2B, and the upper terminal seat 21 and the lower terminal seat 22 can be assembled to a carrier seat 23 and then installed together in the insulating body 1, but it is not limited to this. In other embodiments of the present invention, the upper terminal seat 21 and the lower terminal seat 22 can be directly assembled to each other, and the carrier seat 23 is omitted; or, the metal terminals 2 can also be directly fixed to the insulating body 1.

Continuing from the above, please refer to FIG. 5 to FIG. 7 , the front section of the metal terminal 2 is exposed in the corresponding docking groove 10 so as to be electrically connected to the terminal on the tongue plate of the docking connector; the rear section of the metal terminal 2 can extend out of the insulating body 1 so as to be fixed to the circuit board P. In this embodiment, the rear section of the metal terminal 2 is at least L-shaped so as to have a flat contact area, which is suitable for being fixed to the circuit board P using surface mount technology (SMT) and providing a stable soldering point to ensure good electrical contact and mechanical strength during the assembly process. However, in other embodiments of the present invention, according to product requirements, for example, if the connector C is in the form of a wire-end connector, the aforementioned circuit board P can be replaced by an electronic wire or other connecting medium, and the rear section of the metal terminal 2 can be in various forms such as a straight line.

Furthermore, please refer to FIG. 2, FIG. 8 and FIG. 9. The front side of the metal shell 3 is provided with a front opening 31, and the rear side of the metal shell 3 is provided with a rear opening 32. The front opening 31 and the rear opening 32 are connected, so that the insulating body 1 can extend from the back to the front into the metal shell 3 and be installed in the metal shell 3. The front opening 31 is connected with the docking groove 10 of the insulating body 1 so that the tongue plate of the docking connector can extend into the docking groove 10 through the front opening 31. In addition, the bottom side of the metal shell 3 is also provided with a lower opening 33, so that the rear sections of the metal terminals 2 can be exposed from the lower opening 33 of the metal shell 3 and can be fixed to the circuit board P. The cover 4 can be assembled to the rear side of the metal shell 3 and can completely or partially cover the rear opening 32 to provide appropriate protection for the insulating body 1 and the metal terminal 2 and block foreign objects from the outside. However, in other embodiments of the present invention, according to product requirements, the connector C can be provided with no cover 4; or, the metal shell 3 can be provided with no rear opening 32; or, the metal shell 3 can be provided with no lower opening 33, so that the rear section of the metal terminal 2 is exposed outside the rear opening 32, etc.

Furthermore, referring to FIG. 2 and FIG. 6 to FIG. 9 , a first inner wall (such as the top inner wall or the bottom inner wall) of the metal shell 3 is provided with a blocking portion 34. The blocking portion 34 is opposite to one side of the insulating body 1 and is spaced apart from the insulating body 1 to form a first groove 341. A left inner wall and a right inner wall of the metal shell 3 are opposite and adjacent to the first inner wall. The left inner wall is spaced apart from the left side of the insulating body 1 by a distance to form a left groove 342, and the right inner wall is spaced apart from the right side of the insulating body 1 by another distance to form a right groove 343. In this embodiment, the left end of the first groove 341 is connected to the left groove 342, and the right end of the first groove 341 is connected to the right groove 343, but it is not limited to this. In other embodiments of the present invention, the first groove 341 can only be connected to the left groove 342 or the right groove 343; or, the first groove 341 can also not be connected to the left groove 342 or the right groove 343.

Referring again to FIG. 2 and FIG. 6 to FIG. 9 , the metal housing 3 is provided with a left guide structure 344 and a right guide structure 345, wherein the left guide structure 344 corresponds to the left groove 342, and the right guide structure 345 corresponds to the right groove 343. In the first embodiment, the left guide structure 344 and the right guide structure 345 are formed based on the change of the inner wall of the blocking portion 34 (e.g., a concave form or a protruding form). Specifically, the blocking portion 34 is provided with a left guide structure 344A in the area corresponding to the left groove 342, and the blocking portion 34 is provided with a right guide structure 345A in the area corresponding to the right groove 343. In this embodiment, the left guide structure 344A protrudes downward (i.e., a protruding form), and the right guide structure 345A is recessed upward (i.e., a recessed form). Therefore, with the same horizontal reference plane (such as the top surface of the circuit board P) as a reference, the vertical height of the left groove 342 (i.e., the distance from the bottom surface of the left guide structure 344A to the horizontal reference plane) will be different from the vertical height of the right groove 343 (i.e., the distance from the bottom surface of the right guide structure 345A to the horizontal reference plane). However, in other embodiments of the present invention, the forms of the aforementioned left guide structure 344A and the right guide structure 345A may be interchangeable; or, the forms of the left guide structure 344A and the right guide structure 345A may be the same; or, the metal shell 3 may not be provided with the left guide structure 344A and the right guide structure 345A, so that the left groove 342 and the right groove 343 have the same height in the vertical direction.

Continuing from the above, please refer to Figures 2 and 6 to 9. In the second embodiment, the left guide structure 344 and the right guide structure 345 are formed based on the change of the inner wall of the metal shell 3 (such as a recessed form or a protruding form). Specifically, the left inner wall of the metal shell 3 will be recessed to form the left guide structure 344B, and the right inner wall of the metal shell 3 will be recessed to form the right guide structure 345B, and the left guide structure 344B and the right guide structure 345B have different heights in the upper and lower directions, but are not limited to this. In other embodiments of the present invention, the left guide structure 344B and the right guide structure 345B can be changed to a protruding form; or, the forms of the left guide structure 344B and the right guide structure 345B are different from each other; or, the metal shell 3 may not be provided with the left guide structure 344B and the right guide structure 345B. In addition, according to the actual needs of the product, the left guide structure 344 provided in the metal shell 3 can be the first implementation (left guide structure 344A) and/or the second implementation (left guide structure 344B); the right guide structure 345 provided in the metal shell 3 can be the first implementation (right guide structure 345A) and/or the second implementation (right guide structure 345B).

Please refer to Figures 2, 6 to 9 again. When the connector C is plugged into the docking connector, the corresponding structure of the docking connector can be inserted into the corresponding first groove 341, the left groove 342 and/or the right groove 343, so that the connector C and the docking connector form a limiting effect on three sides (such as the top side, the left side and the right side), so that the combination of the connector C and the docking connector is more stable. At the same time, through the design of the left guide structure 344 and the right guide structure 345, the corresponding structure of the docking connector can be accurately guided to extend into the corresponding groove. In addition, different forms of the left guide structure 344 and the right guide structure 345 can also have a foolproof effect. Furthermore, in order to make the corresponding structure of the docking connector slide into the corresponding groove more easily, the edges of the blocking portion 34 corresponding to the first groove 341, the left groove 342 and/or the right groove 343 are respectively inclined, and the inclined surface will expand from the front to the rear.

Referring again to FIGS. 1 to 3 , the metal housing 3 is divided into a front section 3A and a rear section 3B, and the front side surface of the blocking portion 34 can be located within the vertical projection range of the front section 3A, or within the vertical projection range of the rear section 3B, or within the vertical projection range of the transition area between the front section 3A and the rear section 3B. The front section 3A is in the form of a frame, and its vertical height is greater than that of the rear section 3B; the left-right length of the front section 3A can be less than that of the rear section 3B. However, in some embodiments, the left-right lengths of the front section 3A and the rear section 3B can be the same, or the left-right length of the front section 3A can be greater than the left-right length of the rear section 3B. In addition, in the embodiment, the metal shell 3 can be made of cast iron, and based on the front view direction (as shown in FIG. 2 ), the thickness of the four side walls (such as the top wall, the left side wall, the right side wall, and the bottom wall) of the front section 3A is 1.73 mm at the thickest point and 1.23 mm at the thinnest point, but not limited to this. According to actual needs, the thickness of the four side walls of the front section 3A can be between 1 mm and 5 mm. Thus, since the cast iron material has high compressive strength and wear resistance, the metal shell 3 can effectively resist external impact and wear. At the same time, the good heat dissipation performance of the cast iron material also helps to reduce the heat accumulation of the connector C during long-term operation and maintain the working stability of the connector C.

Continuing from the above, please refer to Figures 1 to 3 again. When the connector C is assembled to the circuit board P, the front area 3A will be located on the outside of the front edge of the circuit board P and will be separated from the edge of the circuit board P by a gap G (as shown in Figure 3). However, this is not limited to this. In some embodiments, the front area 3A can also be attached to the edge of the circuit board P. In this way, by locating a part of the metal shell 3 outside the circuit board P, more space on the circuit board P can be released for installation of other electronic components, and when the docking connector is inserted into the connector C, the front section area 3A can withstand more force, thereby reducing the direct stress on the solder joint between the metal terminal 2 and the circuit board P. At the same time, the front section area 3A can also provide appropriate protection for the docking connector, effectively improving the plugging stability and service life of the connector C and the docking connector.

The above is only the preferred embodiment of the present invention. However, the scope of rights claimed by the present invention is not limited thereto. Any equivalent changes that can be easily thought of by those familiar with the art based on the technical content disclosed in the present invention should fall within the scope of protection of the present invention.

1: Insulation body 10: Docking groove 2: Metal terminal 2A: Upper terminal set 2B: Lower terminal set 21: Upper terminal seat 22: Lower terminal seat 23: Carrier seat 3: Metal shell 3A: Front section 3B: Rear section 31: Front opening 32: Rear opening 33: Lower opening 34: Blocking part 341: First groove 342: Left groove 343: Right groove 344, 344A, 344B: Left guide structure 345, 345A, 345B: Right guide structure 4: Cover C: Connector P: Circuit board G: Gap

[Figure 1] is a three-dimensional schematic diagram of the connector system of the present invention; [Figure 2] is a front view schematic diagram of the connector system of the present invention; [Figure 3] is a side view schematic diagram of the connector system of the present invention; [Figure 4] is an exploded schematic diagram of the connector system of the present invention; [Figure 5] is an exploded schematic diagram of the insulating body and metal terminals of the present invention; [Figure 6] is a three-dimensional schematic diagram of the cross-section of the connector of the present invention in the front view direction; [Figure 7] is a three-dimensional schematic diagram of the cross-section of the connector of the present invention in the rear view direction; [Figure 8] is a three-dimensional schematic diagram of the metal frame of the present invention in the front view direction; and [Figure 9] is a three-dimensional schematic diagram of the metal frame of the present invention in the rear view direction.

1: Insulation body

2:Metal terminal

3:Metal shell

3A: Front area

3B: Posterior area

34: Blocking part

341: First groove

342: Left groove

343:Right groove

344,344A,344B: Left guide structure

345,345A,345B: Right guide structure

4: Mask body

C: Connector

P: Circuit board

Claims (26)

A connector with a multiple groove structure, comprising: an insulating body, the front side of which is provided with at least one docking groove; a plurality of metal terminals, which are arranged in the insulating body, the front section of each metal terminal will expose the corresponding docking groove, and the rear section of each metal terminal will extend out of the insulating body to be fixed to a connecting medium; and A metal shell has a front opening on its front side, in which the insulating body can be installed, and the front opening is connected to the docking groove, wherein a first inner wall of the metal shell is provided with a blocking portion, and the blocking portion is opposite to one side of the insulating body, and there is a distance between the blocking portion and the insulating body to form a first groove; a left inner wall and a right inner wall of the metal shell are opposite to each other and are adjacent to the first inner wall, and the left inner wall is separated from the insulating body by a distance to form a left groove, and the right inner wall is separated from the insulating body by another distance to form a right groove. A connector as described in claim 1, wherein the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove. A connector as described in claim 1, wherein the metal shell is divided into a front section area and a rear section area, wherein the front section area is in the form of a frame and its vertical height is greater than the vertical height of the rear section area. A connector as described in claim 3, wherein the left-right length of the front section area is smaller than the left-right length of the rear section area. A connector as described in claim 1, wherein the metal shell is further provided with a left guide structure and a right guide structure, the left guide structure corresponds to the left groove, and the right guide structure corresponds to the right groove. A connector as described in claim 5, wherein the left inner wall of the metal shell is recessed to form the left guide structure, and the right inner wall of the metal shell is recessed to form the right guide structure. A connector as described in claim 5, wherein the left guide structure is provided in an area of the blocking portion corresponding to the left groove, and the right guide structure is provided in an area of the blocking portion corresponding to the right groove. A connector as described in claim 7, wherein the left guide structure is a protruding form or a recessed form, and the right guide structure is different from the left guide structure and is a recessed form or a protruding form. A connector as described in any one of claims 5 to 8, wherein the left guide structure and the right guide structure have different heights in the vertical direction. A connector as described in claim 9, wherein the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove. A connector as described in any one of claims 1 to 8, wherein the metal shell is made of cast iron material. A connector as described in any one of claims 1 to 8, wherein the edges of the blocking portion corresponding to the first groove, the left groove and/or the right groove are respectively inclined surfaces, and the inclined surfaces are inclined and expanded from the front to the rear. The connector as described in any one of claims 1 to 8 further includes a cover body, wherein a rear opening is provided on the rear side of the metal shell for the insulating body to extend into the metal shell from the rear to the front, and the cover body can be assembled to the rear side of the metal shell and at least cover a partial portion of the rear opening. A connector system with a multiple groove structure includes: A circuit board; and A connector fixed to the circuit board, which can be close to or across the side edge of the circuit board, the connector includes: An insulating body, the front side of which is provided with at least one docking groove; A plurality of metal terminals are arranged in the insulating body, the front section of each metal terminal will expose the corresponding docking groove, and the rear section of each metal terminal will extend out of the insulating body for fixing to a connecting medium; and A metal shell has a front opening on its front side, in which the insulating body can be installed, and the front opening is connected to the docking groove, wherein a first inner wall of the metal shell is provided with a blocking portion, and the blocking portion is opposite to one side of the insulating body, and there is a distance between the blocking portion and the insulating body to form a first groove; a left inner wall and a right inner wall of the metal shell are opposite to each other and are adjacent to the first inner wall, and the left inner wall is separated from the insulating body by a distance to form a left groove, and the right inner wall is separated from the insulating body by another distance to form a right groove. A connector system as described in claim 14, wherein the metal shell is divided into a front section area and a rear section area, wherein the front section area is in the form of a frame and its vertical height is greater than the vertical height of the rear section area, and the front section area is located on the outside of the edge of the circuit board. A connector system as described in claim 15, wherein the left-right length of the front section area is smaller than the left-right length of the rear section area. A connector system as described in claim 14, wherein the metal shell is further provided with a left guide structure and a right guide structure, the left guide structure corresponds to the left groove, and the right guide structure corresponds to the right groove. A connector system as described in claim 17, wherein the left inner wall of the metal shell is recessed to form the left guide structure, and the right inner wall of the metal shell is recessed to form the right guide structure. A connector system as described in claim 17, wherein the left guide structure is provided in an area of the blocking portion corresponding to the left groove, and the right guide structure is provided in an area of the blocking portion corresponding to the right groove. A connector system as described in claim 19, wherein the left guide structure is a protruding form or a recessed form, and the right guide structure is different from the left guide structure and is a recessed form or a protruding form. A connector system as described in any one of claims 14 to 20, wherein the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove. A connector system as described in any one of claims 17 to 20, wherein the left guide structure and the right guide structure have different heights in the vertical direction. A connector system as described in claim 22, wherein the left end of the first groove is connected to the left groove, and the right end of the first groove is connected to the right groove. A connector system as described in any one of claims 14 to 20, wherein the metal shell is made of cast iron material. A connector system as described in any one of claims 14 to 20, wherein the edges of the blocking portion corresponding to the first groove, the left groove and/or the right groove are respectively inclined surfaces, and the inclined surfaces are inclined and expanded from the front to the rear. The connector system as described in any one of claims 14 to 20 further includes a cover body, wherein a rear opening is provided on the rear side of the metal shell for the insulating body to extend into the metal shell from the rear to the front, and the cover body can be assembled to the rear side of the metal shell and at least cover a partial portion of the rear opening.

Images