Insulating shell, common ground shielding shell and connector

Abstract

The utility model provides an insulating shell, a common ground shielding shell and a connector, and belongs to the technical field of connecting devices. The insulating shell comprises a left side plate, a right side plate and a bottom plate, and the opposite inner walls of the two side plates are respectively provided with a guide structure which is used for being in guide fit with matching structures on the left side and the right side of the common ground shielding shell or the terminal module and a clamping protrusion or a clamping hole which is in clamping fit with the terminal module when the terminal module is installed in place. The guiding structure on the left side comprises a left stopping face used for being matched with a corresponding matching structure in a stopping mode when the side plate on the left side is stressed and deforms leftwards relative to the bottom plate, and the guiding structure on the right side comprises a right stopping face used for being matched with a corresponding matching structure in a stopping mode when the side plate on the right side is stressed and deforms rightwards relative to the bottom plate. When the terminal module is forcibly installed between the two side plates of the insulating shell, the outward deformation of the whole side plates can be limited through the left stop surface and the right stop surface, the large deformation of the connection positions of the side plates and the bottom plate is avoided, and the risk of cracking of the connection positions is reduced.

Description

Technical Field

[0001] The utility model relates to an insulating housing, a common ground shielding housing and a connector, belonging to the technical field of connecting devices. Background Art

[0002] High-speed backplane connectors are a type of connectors commonly used in large communication devices, ultra-high performance servers, supercomputers, industrial computers, and high-end storage devices. For example, a connector disclosed in a Chinese invention patent application with the publication number CN117353069A includes a plurality of terminal modules, a common ground structure, an outer fixing housing (i.e., an insulating housing), and fixing pieces. The insulating housing includes two side plates arranged at intervals left and right and a bottom plate connected between the bottoms of the two side plates. The common ground structure includes a conductive housing (i.e., a common ground shielding housing) and a plurality of grounding elastic pieces. Each grounding elastic piece and the common ground shielding housing are electrically connected to the shielding pieces of each terminal module, which can improve the electromagnetic interference at the mating end of the connector and enhance the signal transmission performance.

[0003] When the above-mentioned common ground shielding housing is installed on the insulating housing, in order to ensure the installation accuracy, generally, upward and downward extending guiding protrusions are respectively provided on two opposite side surfaces of the common ground shielding housing, and upward and downward extending guiding grooves are respectively provided on the opposite inner walls of the two side plates of the insulating housing. The guiding protrusions are inserted into the guiding grooves for guiding the common ground shielding housing. Among them, the cross-sections of the guiding protrusions and the guiding grooves are both rectangular, and there is an assembly gap between them. Therefore, there is no connecting force between the common ground shielding housing and the insulating housing in the left-right direction. In addition, in order to realize the positioning between the terminal module and the insulating housing, clamping protrusions are respectively provided on the left and right side walls of the terminal module, and clamping holes are respectively provided on the two side plates of the insulating housing. When the terminal module is installed, the two clamping protrusions expand the two side plates of the insulating housing and are forced into the space between the two side plates. When reaching the position of the clamping holes, the clamping protrusions enter the clamping holes to achieve positioning.

[0004] The above-mentioned connector has the following problems during use: During the process of the clamping protrusions expanding the two side plates of the insulating housing, the two side plates are deformed outward under force, that is, the stressed parts of the side plates swing outward around the connection position between the side plates and the bottom plate, which easily causes cracking at the connection position between the side plates and the bottom plate. If the deformation amount of the side plates is reduced, it is easy to cause insufficient clamping force between the side plates and the terminal module. During use, when the connector is separated from the mating connector, the mating connector often generates a certain pulling force on the insulating housing, posing a risk that the insulating housing may be separated from the common ground shielding housing and the terminal module.

[0005] In addition, for connectors without a common ground shielding shell, in which the terminal module is directly assembled with the insulating shell, the terminal module is provided with both a guide structure and a snap-in protrusion. The guide structure is located below the snap-in protrusion. During the installation process, the terminal module is first guided by the guide structure, and then the snap-in protrusion is forced between the two side panels. Finally, the snap-in protrusion is snapped into the snap-in hole of the side panel. This process also has the same technical problems mentioned above. Utility Model Content

[0006] The purpose of the utility model is to provide an insulating shell to solve the problem in the prior art that when the terminal module is installed, the two side plates of the insulating shell will be stretched open and the side plates will be deformed outward relative to the bottom plate, which may easily lead to cracks in the connection position between the side plates and the bottom plate; the purpose of the utility model is also to provide a common ground shielding shell and connector to solve the above-mentioned problem.

[0007] In order to achieve the above purpose, the insulating housing in the utility model adopts the following technical solutions:

[0008] An insulating shell includes two left and right side panels and a bottom plate connected between the bottoms of the two side panels. The opposite inner walls of the two side panels are respectively provided with guide structures for guiding and cooperating with the cooperating structures on the left and right sides of the common ground shielding shell or the terminal module, and snap-fitting protrusions or snap-fitting holes for snap-fitting with the terminal module when the terminal module is installed in place. The guide structure on the left side includes a left stop surface for stopping and cooperating with the corresponding cooperating structure when the left side panel is subjected to force and deformed to the left relative to the bottom plate. The guide structure on the right side includes a right stop surface for stopping and cooperating with the corresponding cooperating structure when the right side panel is subjected to force and deformed to the right relative to the bottom plate.

[0009] The beneficial effect of the above technical scheme is that: the utility model belongs to an invention of changing the relationship between elements in the change of elements, and the change is that the guide structure on the left side of the insulating shell includes a left stop surface, and the guide structure on the right side includes a right stop surface. When the terminal module is forcibly installed between the two side plates of the insulating shell, the side plate on the left side is subjected to force and deforms to the left relative to the bottom plate, and the side plate on the right side is subjected to force and deforms to the right relative to the bottom plate. The left stop surface can be used to stop and cooperate with the matching structure on the left side of the common shielding shell or the terminal module, and the right stop surface can be used to stop and cooperate with the matching structure on the right side of the common shielding shell or the terminal module, thereby limiting the overall outward deformation of the side plate, so that the side plate is only deformed at the position where it is pressed by the terminal module, and the portion guided and matched with the matching structure on the common shielding shell or the terminal module generates a certain connection force with the matching structure, thereby avoiding large deformation at the connection position of the side plate and the bottom plate, thereby greatly reducing the risk of cracking at the connection position of the side plate and the bottom plate.

[0010] Further, the guiding structure on at least one side includes a clamping groove for engaging with the barb structure on the common ground shielding case or the terminal module, and one side wall of the clamping groove constitutes the left stop surface or the right stop surface.

[0011] Further, a rib protruding from the inner wall of the side plate is provided for vertical guiding cooperation with the groove on the common ground shielding case or the terminal module. A notch is provided at the upper end of the rib and on the side close to the inner wall of the side plate where the rib is located, and the notch forms the clamping groove.

[0012] Further, the rib gradually inclines towards the inside of the insulating housing from top to bottom.

[0013] Further, only the guiding structure on one side includes the clamping groove, and the guiding structure on the other side is a dovetail protrusion or a dovetail groove or a T-shaped protrusion or a T-shaped groove extending vertically.

[0014] To achieve the above object, the following technical solution is adopted for the common ground shielding case in the present utility model:

[0015] A common ground shielding case, on the left and right outer side walls of which there are respectively provided engaging structures for guiding cooperation with the guiding structures on the inner walls of the left and right side plates of the insulating housing. The engaging structure on the left side includes a left stop wall for engaging in a stop cooperation with the corresponding guiding cooperation when the side plate on the left side of the insulating housing is stressed and deformed leftward relative to the bottom plate, and the engaging structure on the right side includes a right stop wall for engaging in a stop cooperation with the corresponding guiding cooperation when the side plate on the right side of the insulating housing is stressed and deformed rightward relative to the bottom plate.

[0016] The beneficial effect of the above technical solution is as follows: The present utility model belongs to an invention creation in which the relationship between elements changes during element change. The change lies in that the engaging structure on the left side of the common ground shielding case includes a left stop wall, and the engaging structure on the right side includes a right stop wall. When the terminal module is forcibly inserted between the two side plates of the insulating housing, the side plate on the left side of the insulating housing is stressed and deformed leftward relative to the bottom plate, and the side plate on the right side is stressed and deformed rightward relative to the bottom plate. Through the left stop wall, it can engage in a stop cooperation with the guiding cooperation on the left side plate of the insulating housing, and through the right stop wall, it can engage in a stop cooperation with the guiding cooperation on the right side plate of the insulating housing, thereby restricting the outward deformation of the overall side plate, causing the side plate to deform only at the position where it is pressed by the terminal module, and generating a certain connection force between the part that is in guiding cooperation with the engaging structure on the common ground shielding case and the engaging structure, avoiding large deformation at the connection position between the side plate and the bottom plate, and further greatly reducing the risk of cracking at the connection position between the side plate and the bottom plate.

[0017] Further, at least one side of the engaging structure includes a barb structure for engaging with the clamping groove on the inner wall of the side plate, and the inner wall of the barb structure constitutes the left stop wall or the right stop wall.

[0018] Further, a rib is protruded on the outer sidewall of the common ground shielding case. The rib includes two vertically arranged vertical bars and a connecting bar connected between the tops of the two vertical bars. The groove formed by the two vertical bars and the outer sidewall of the common ground shielding case is used for guiding with the convex rib on the inner wall of the side plate. The connecting bar is in an L shape to form the inverted hook structure.

[0019] Further, the outer sidewall of the common ground shielding case for enclosing the groove is gradually inclined towards the inside of the common ground shielding case from top to bottom.

[0020] Further, only one side of the fitting structure includes the inverted hook structure, and the fitting structure on the other side is a dovetail groove extending vertically and used for matching with the dovetail protrusion on the inner wall of the side plate, or a dovetail protrusion used for matching with the dovetail groove on the inner wall of the side plate, or a T-shaped groove used for matching with the T-shaped protrusion on the inner wall of the side plate, or a T-shaped protrusion used for matching with the T-shaped groove on the inner wall of the side plate.

[0021] To achieve the above object, the connector in the present utility model adopts the following technical solution:

[0022] A connector includes an insulating housing and a common ground shielding case. The insulating housing includes two left and right side plates and a bottom plate connected between the bottoms of the two side plates. On the opposite inner walls of the two side plates, there are respectively provided a guiding structure for guiding and cooperating with the fitting structures on the left and right sides of the common ground shielding case, and a clamping protrusion or a clamping hole for clamping and cooperating with the terminal module when it is installed in place. The guiding structure on the left side includes a left stop surface for stop and cooperation with the corresponding fitting structure when the left side plate is stressed and deformed leftward relative to the bottom plate. The guiding structure on the right side includes a right stop surface for stop and cooperation with the corresponding fitting structure when the right side plate is stressed and deformed rightward relative to the bottom plate. On the left and right outer sidewalls of the common ground shielding case, there are provided fitting structures for guiding and cooperating with the guiding structures on the inner walls of the left and right side plates of the insulating housing respectively. The fitting structure on the left side includes a left stop wall for stop and cooperation with the corresponding guiding cooperation when the left side plate of the insulating housing is stressed and deformed leftward relative to the bottom plate. The fitting structure on the right side includes a right stop wall for stop and cooperation with the corresponding guiding cooperation when the right side plate of the insulating housing is stressed and deformed rightward relative to the bottom plate.

[0023] The beneficial effects of the above technical solution are as follows: The present utility model belongs to an invention creation with a change in the element relationship in element change. The change lies in that the guiding structure on the left side of the insulating housing includes a left stop surface, and the guiding structure on the right side includes a right stop surface. The matching structure on the left side of the common ground shielding housing includes a left stop wall, and the matching structure on the right side includes a right stop wall. When the terminal module is forcibly inserted between the two side plates of the insulating housing, the side plate on the left side of the insulating housing is stressed and deformed to the left relative to the bottom plate, and the side plate on the right side is stressed and deformed to the right relative to the bottom plate. The left stop wall can be in stop cooperation with the left stop surface on the insulating housing, and the right stop wall can be in stop cooperation with the right stop surface on the insulating housing, thereby restricting the outward deformation of the overall side plate, causing the side plate to deform only at the position pressed by the terminal module, and generating a certain connection force between the part guided and matched with the matching structure on the common ground shielding housing and the matching structure, avoiding large deformation at the connection position between the side plate and the bottom plate, and further greatly reducing the risk of cracking at the connection position between the side plate and the bottom plate.

[0024] Further, the guiding structure on at least one side includes a card slot for engaging with a barb structure on the common ground shielding housing or the terminal module, and one side wall of the card slot constitutes the left stop surface or the right stop surface; the matching structure on at least one side includes a barb structure for engaging with the card slot on the inner wall of the side plate, and the inner wall of the barb structure constitutes the left stop wall or the right stop wall.

[0025] Further, a rib protruding upward is provided on the inner wall of the side plate for upper and lower guiding cooperation with a groove on the common ground shielding housing or the terminal module. A notch is provided at the upper end of the rib and on the side close to the inner wall of the side plate where the rib is located, and the notch forms the card slot; a rib protrusion is provided on the outer side wall of the common ground shielding housing. The rib protrusion includes two vertically arranged vertical bars and a connecting bar connecting the tops of the two vertical bars. The groove formed by the two vertical bars and the outer side wall of the common ground shielding housing is used for guiding with the rib on the inner wall of the side plate, and the connecting bar is in an L shape to constitute the barb structure.

[0026] Further, the rib gradually inclines toward the inside of the insulating housing from top to bottom; the outer side wall of the common ground shielding housing for forming the groove gradually inclines toward the inside of the common ground shielding housing from top to bottom.

[0027] Further, only the guiding structure on one side includes the card slot, and the guiding structure on the other side is a dovetail protrusion or a dovetail groove or a T-shaped protrusion or a T-shaped groove extending vertically; only the matching structure on one side includes the barb structure, and the matching structure on the other side is a dovetail groove extending vertically and used for matching with the dovetail protrusion on the inner wall of the side plate or a dovetail protrusion used for matching with the dovetail groove on the inner wall of the side plate or a T-shaped groove used for matching with the T-shaped protrusion on the inner wall of the side plate or a T-shaped protrusion used for matching with the T-shaped groove on the inner wall of the side plate.

[0028] To achieve the above object, the connector in the present utility model adopts the following technical solution:

[0029] A connector includes an insulating housing and a terminal module. The insulating housing includes two left and right side plates and a bottom plate connected between the bottoms of the two side plates. On the opposite inner walls of the two side plates, there are respectively provided a guiding structure for guiding cooperation with the cooperation structures on the left and right sides of the terminal module and a clamping projection or a clamping hole for clamping cooperation with the terminal module when it is installed in place. The guiding structure on the left side includes a left stop surface for stop cooperation with the corresponding cooperation structure when the left side plate is stressed and deformed leftward relative to the bottom plate, and the guiding structure on the right side includes a right stop surface for stop cooperation with the corresponding cooperation structure when the right side plate is stressed and deformed rightward relative to the bottom plate.

[0030] The beneficial effects of the above technical solution are as follows: The present utility model belongs to an invention creation in which the relationship between elements changes during element change. The change lies in that the guiding structure on the left side of the insulating housing includes a left stop surface, and the guiding structure on the right side includes a right stop surface. When the terminal module is forcibly inserted between the two side plates of the insulating housing, the left side plate is stressed and deformed leftward relative to the bottom plate, and the right side plate is stressed and deformed rightward relative to the bottom plate. Through the left stop surface, it can be in stop cooperation with the common ground shielding shell or the cooperation structure on the left side of the terminal module, and through the right stop surface, it can be in stop cooperation with the common ground shielding shell or the cooperation structure on the right side of the terminal module, thereby restricting the overall outward deformation of the side plate, making the side plate only deformed at the position pressed by the terminal module, and generating a certain connection force between the part guidingly cooperating with the cooperation structure on the common ground shielding shell or the terminal module and the cooperation structure, avoiding large deformation at the connection position between the side plate and the bottom plate, and further greatly reducing the risk of cracking at the connection position between the side plate and the bottom plate.

[0031] Further, the guiding structure on at least one side includes a card slot for buckling with a barb structure on the common ground shielding shell or the terminal module, and one side wall of the card slot constitutes the left stop surface or the right stop surface.

[0032] Further, a rib protruding upward is provided on the inner wall of the side plate for up and down guiding cooperation with a groove on the common ground shielding shell or the terminal module. A notch is provided at the upper end of the rib and near one side of the inner wall of the side plate where the rib is located, and the notch forms the card slot.

[0033] Further, the rib gradually inclines toward the inside of the insulating housing from top to bottom.

[0034] Further, only the guiding structure on one side includes the card slot, and the guiding structure on the other side is a dovetail protrusion or a dovetail groove or a T-shaped protrusion or a T-shaped groove extending up and down. Description of the Drawings

[0035] Figure 1 It is a perspective view of Embodiment 1 of the connector of the present utility model;

[0036] Figure 2 It is the side view of Embodiment 1 of the connector of the present utility model;

[0037] Figure 3 It is Figure 2 the sectional view taken along the line A-A in

[0038] Figure 4 It is Figure 3 the enlarged partial view in

[0039] Figure 5 It is Figure 2 the sectional view taken along the line B-B in

[0040] Figure 6 It is the exploded structure diagram of Embodiment 1 of the connector of the present utility model;

[0041] Figure 7 It is the three-dimensional view (one perspective) of the insulating housing in Embodiment 1 of the connector of the present utility model;

[0042] Figure 8 It is the three-dimensional view (another perspective) of the insulating housing in Embodiment 1 of the connector of the present utility model;

[0043] Figure 9 It is the top view of the insulating housing in Embodiment 1 of the connector of the present utility model;

[0044] Figure 10 It is the three-dimensional view (one perspective) of the common ground shielding case in Embodiment 1 of the connector of the present utility model;

[0045] Figure 11 It is the three-dimensional view (another perspective) of the common ground shielding case in Embodiment 1 of the connector of the present utility model;

[0046] Figure 12 It is the top view of the common ground shielding case in Embodiment 1 of the connector of the present utility model.

[0047] In the figure: 1. Insulating housing; 1-1. Left side plate; 111. Left side card hole; 112. Half dovetail groove; 1-2. Right side plate; 121. Right side card hole; 122. Rib; 1-3. Bottom plate; 2. Common ground shielding case; 2-1. Half dovetail protrusion; 2-2. Rib; 221. Vertical rib; 222. Connecting rib; 3. Terminal module; 3-1. Left side clamping protrusion; 3-2. Right side clamping protrusion. Detailed implementation manners

[0048] The features and performances of the present utility model will be further described in detail below in conjunction with the embodiments.

[0049] In view of the technical problems existing in the prior art, the basic technical concept of the utility model is to improve the guide structure on the left and right side plates of the insulating shell, so that the guide structure can guide the common ground shielding shell or the terminal module, and can also cooperate with the matching structure on the common ground shielding shell or the terminal module. Specifically, the guide structure on the left side includes a left stop surface for cooperating with the corresponding matching structure when the left side plate is subjected to force and deformed to the left relative to the bottom plate, and the guide structure on the right side includes a right stop surface for cooperating with the corresponding matching structure when the right side plate is subjected to force and deformed to the right relative to the bottom plate. Therefore, when the terminal module is forcibly installed between the two side plates of the insulating shell, the overall outward deformation of the side plate can be limited, thereby avoiding large deformation at the connection position between the side plate and the bottom plate, and reducing the risk of cracking at the connection position.

[0050] Specifically, embodiment 1 of the connector in the utility model:

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the connector includes an insulating housing 1, a common ground shielding shell 2 and a terminal module 3. The common ground shielding shell 2 is mounted on the insulating housing 1, and the terminal module 3 is connected to the common ground through the common ground shielding shell 2. Figure 6 As shown, the left and right side walls of the terminal module 3 are provided with clamping protrusions, which are the left clamping protrusion 3-1 and the right clamping protrusion 3-2. Figure 7 , Figure 8 and Figure 9 As shown, the insulating shell 1 includes two left and right side panels and a bottom plate 1-3 connected between the bottoms of the two side panels. The left and right side panels are respectively a left side panel 1-1 and a right side panel 1-2. The opposite inner walls of the two side panels are respectively provided with card holes for engaging with corresponding card protrusions when the terminal module 3 is installed in place, which are respectively a left card hole 111 and a right card hole 121. The card holes on both sides are through holes that penetrate the corresponding side panels.

[0052] The inner walls opposite to each other on the left side plate 1-1 and the right side plate 1-2 are also provided with guiding structures for guiding and cooperating with the matching structures on the left and right sides of the common ground shielding shell 2. The guiding structure on the left side plate 1-1 is located below the left clamping hole 111, and the guiding structure on the right side plate 1-2 is located below the right clamping hole 121. Therefore, when assembling the common ground shielding shell 2 and the terminal module 3, the common ground shielding shell 2 is first guided by the guiding structure to ensure the installation accuracy, and then the clamping protrusion on the terminal module 3 will open the left and right side plates, and finally realize the clamping positioning with the corresponding clamping hole. Specifically, as Figure 4 , Figure 7 and Figure 9As shown, the guiding structure on the right side plate 1-2 includes a plurality of ribs 122 protruding from the inner wall of the side plate and arranged at intervals in the front and rear. A notch is provided at the upper end of the rib 122 and on the side close to the inner wall of the side plate where it is located, and the notch forms a clamping groove.

[0053] Cooperating structures are respectively provided on the left and right outer side walls of the common ground shielding case 2, such as Figure 4 , Figure 5 , Figure 11 and Figure 12 As shown, a plurality of protrusions 2-2 arranged at intervals in the front and rear protrude from the outer side wall on the right side of the common ground shielding case 2. The protrusions 2-2 correspond to the ribs 122 one by one. The protrusion 2-2 includes two vertically arranged vertical bars 221 and a connecting bar 222 connected between the tops of the two vertical bars 221. The groove formed by the two vertical bars 221 and the outer side wall of the common ground shielding case 2 is used to guide the rib 122 on the inner wall of the right side plate 1-2. That is, when installing the common ground shielding case 2, the rib 122 is inserted between the two vertical bars 221, which can guide the downward installation of the common ground shielding case 2 from top to bottom. And, in order to facilitate the insertion of the rib 122, inclined guiding surfaces are respectively provided at the bottom ends of the two vertical bars 221, thus forming a flared structure.

[0054] As Figure 4 shown, the connecting bar 222 is in an L shape. Its horizontal side is connected to the outer side wall of the common ground shielding case 2, and the vertical side is connected between the horizontal side and the two vertical bars 221 on both sides. This shape makes the connecting bar 222 form an inverted hook structure. When the installation process of the common ground shielding case 2 into the insulating housing 1 enters the final stage, the inverted hook structure is buckled with the upper end of the rib 122, that is, the vertical side of the connecting bar 222 is inserted into the clamping groove formed at the upper end of the rib 122. During the installation process, in order to make the common ground shielding case 2 easier to be installed on the insulating housing 1, the outer side wall of the common ground shielding case 2 used to enclose the above-mentioned groove is inclined gradually from top to bottom towards the inside of the common ground shielding case 2, and at the same time, the rib 122 is inclined gradually from top to bottom towards the inside of the insulating housing 1, thus forming a certain guiding effect.

[0055] As Figure 8 and Figure 9 shown, the guiding structure on the left side plate 1-1 of the insulating housing includes a plurality of semi-dovetail grooves 112 arranged at intervals in the front and rear. The semi-dovetail grooves 112 extend in the up and down direction. The "semi-dovetail groove" means that one side wall of the groove is inclined relative to the bottom wall of the groove to form a dovetail structure, while the other side wall of the groove is perpendicular to the bottom wall of the groove. Overall, only half of the dovetail structure is formed. Of course, since the spacing between the plurality of semi-dovetail grooves 112 is not large, a complete dovetail protrusion structure is actually formed between two adjacent semi-dovetail grooves 112.

[0056] As Figure 10 and Figure 12As shown, the mating structure on the outer side wall of the left side of the common ground shielding case 2 includes a plurality of semi-dovetail protrusions 2-1 arranged at intervals in the front and rear directions. The semi-dovetail protrusions 2-1 extend in the up and down direction, and their shapes and sizes are adapted to the semi-dovetail grooves 112, and their positions correspond to the semi-dovetail grooves 112 one by one. Therefore, during the process of installing the common ground shielding case 2, the left side of the common ground shielding case 2 is guided and mated with the semi-dovetail grooves 112 on the left side plate 1-1 of the insulating housing by the semi-dovetail protrusions 2-1, and the right side is guided and mated with the ribs 122 on the right side plate 1-2 of the insulating housing by the grooves formed by the ribs 2-2, ensuring the installation accuracy.

[0057] After the installation of the common ground shielding case 2 is completed, the barb structure formed by the connecting strip 222 is buckled with the upper end of the rib 122. Then, when the clamping protrusions on the terminal module 3 push open the two side plates of the insulating housing 1 and are forcedly inserted between the two side plates, the side plates are deformed outward under force. At this time, for the right side plate 1-2, the barb structure can be in a blocking fit with the rib 122, that is, the vertical side of the connecting strip 222 is in a blocking fit with one side wall of the card slot. Therefore, this side wall constitutes the right blocking surface that is in a blocking fit with the mating structure on the right side of the common ground shielding case 2 when the right side plate 1-2 is stressed and deformed to the right relative to the bottom plate 1-3, and the inner wall of the barb structure constitutes the right blocking wall that is in a blocking fit with the rib 122. In this way, a certain connecting force is generated between the upper end of the rib 122 and the barb structure in the left and right directions, which can limit the overall outward deformation of the right side plate 1-2. Only the position where the right side plate 1-2 is pressed by the right clamping protrusion 3-2 is deformed, avoiding large deformation at the connection position between the right side plate 1-2 and the bottom plate 1-3, and thus greatly reducing the risk of cracking at the connection position between the right side plate 1-2 and the bottom plate 1-3.

[0058] Similarly, for the left side plate 1-1, the semi-dovetail protrusions 2-1 on the common ground shielding case 2 can be in a blocking fit with the semi-dovetail grooves 112. Therefore, the groove side wall of the semi-dovetail groove 112 forming the dovetail structure constitutes the left blocking surface that is in a blocking fit with the mating structure on the left side of the common ground shielding case 2 when the left side plate 1-1 is stressed and deformed to the left relative to the bottom plate 1-3, and the outer wall surface of the semi-dovetail protrusion 2-1 forming the dovetail structure constitutes the left blocking wall that is in a blocking fit with the semi-dovetail groove 112. In this way, a certain connecting force is generated between the semi-dovetail protrusions 2-1 and the semi-dovetail grooves 112 in the left and right directions, which can limit the overall outward deformation of the left side plate 1-1. Only the position where the left side plate 1-1 is pressed by the left clamping protrusion 3-1 is deformed, avoiding large deformation at the connection position between the left side plate 1-1 and the bottom plate 1-3, and thus greatly reducing the risk of cracking at the connection position between the left side plate 1-1 and the bottom plate 1-3.

[0059] Since the two side plates of the insulating housing 1 cannot be deformed outward as a whole, there is no need to worry about cracking at the connection position between the side plates and the bottom plate. Therefore, sufficient interference fit can be set for the clamping protrusions on both sides of the terminal module 3. As long as it can be installed normally, better clamping and positioning with the two side plates of the insulating housing 1 can be achieved after installation in place, ensuring sufficient clamping force. Furthermore, when the connector is separated from the mating connector, even if the mating connector generates a certain pulling force on the insulating housing 1, it can prevent the insulating housing 1 from detaching from the common ground shielding case 2 and the terminal module 3, ensuring the reliability of the overall connector.

[0060] Embodiment 2 of the connector in the present utility model: The connector in this embodiment does not include a common ground shielding case, and the terminal module is directly assembled with the insulating housing. At this time, both sides of the terminal module are provided with a mating structure and clamping protrusions. The mating structure is located below the clamping protrusions. On the inner walls of the two opposite side plates of the insulating housing, there are respectively provided a guiding structure for guiding and mating with the mating structures on the left and right sides of the terminal module and a clamping hole for clamping and mating with the clamping protrusions of the terminal module when the terminal module is installed in place. And the guiding structure on the left includes a left stop surface for stop mating with the mating structure on the left side of the terminal module when the left side plate is stressed and deformed leftward relative to the bottom plate, and the guiding structure on the right includes a right stop surface for stop mating with the mating structure on the right side of the terminal module when the right side plate is stressed and deformed rightward relative to the bottom plate. That is, the structure of the insulating housing is the same as that of the insulating housing in Embodiment 1.

[0061] The mating structure on the terminal module is the same as the mating structure on the common ground shielding case in Embodiment 1. Thus, when installing the terminal module, first, the guiding structure on the insulating housing guides the terminal module, then the clamping protrusions are forcibly inserted between the two side plates, and finally the clamping protrusions are snapped into the clamping holes of the side plates. In this embodiment, during the process of forcibly inserting the clamping protrusions between the two side plates, a certain connecting force is generated in the left-right direction between the side plates and the mating structure on the terminal module, which can also limit the outward deformation of the overall side plates, causing the side plates to deform only at the position pressed by the terminal module, avoiding large deformation at the connection position between the side plates and the bottom plate, and further greatly reducing the risk of cracking at the connection position between the side plates and the bottom plate.

[0062] In other embodiments of the connector: The semi-dovetail groove on the insulating housing can also be replaced with a full-dovetail groove with a complete dovetail structure, and the corresponding mating structure on the common ground shielding case or the terminal module is also a full-dovetail protrusion with a complete dovetail structure.

[0063] In other embodiments of the connector: The semi-dovetail groove or full-dovetail groove on the insulating housing can also be replaced with a semi-dovetail protrusion or full-dovetail protrusion, and the mating structure on the corresponding common ground shielding shell or terminal module is a semi-dovetail groove or full-dovetail groove that matches it. Of course, in other embodiments: The semi-dovetail groove or full-dovetail groove on the insulating housing can also be replaced with a T-shaped groove, and the corresponding groove walls of the T-shaped groove form a stop surface, and the mating structure on the corresponding common ground shielding shell or terminal module is a T-shaped protrusion that matches it, and the corresponding outer side surface of the T-shaped protrusion forms a stop wall. Or in other embodiments: The semi-dovetail groove or full-dovetail groove on the insulating housing can be replaced with a T-shaped protrusion, and the mating structure on the corresponding common ground shielding shell or terminal module is a T-shaped groove that matches it.

[0064] In other embodiments of the connector: For the insulating housing, the dovetail groove or T-shaped groove can be provided on the right side plate, and at the same time, the rib is provided on the left side plate, and the mating structures on both sides of the corresponding common ground shielding shell or terminal module are also interchanged.

[0065] In other embodiments of the connector: The rib can also extend straight up and down without being inclined, and at the same time, the outer side wall of the common ground shielding shell for enclosing the groove also extends straight up and down without being inclined; or when the connector does not include a common ground shielding shell and the mating structure is provided on the terminal module, the outer side wall of the terminal module for enclosing the groove extends straight up and down.

[0066] In other embodiments of the connector: When the guiding structure includes a card slot that engages with the barb structure on the common ground shielding shell or terminal module, a vertically extending guiding groove can be provided on the inner wall of the side plate of the insulating housing. The guiding groove replaces the rib in Embodiment 1 and is in guiding cooperation with the vertically extending guiding strip on the common ground shielding shell or terminal module. At this time, the barb structure is located at the upper end of the guiding strip. At the same time, a card slot with an upward opening is provided on the side plate outside the guiding groove. At this time, the card slot is an independently provided groove structure, replacing the card slot formed by the gap between the upper end of the rib and the inner wall of the side plate in Embodiment 1. At this time, the groove side wall of the card slot still forms a stop surface, and the inner wall of the barb structure still forms a stop wall.

[0067] In other embodiments of the connector: Card slots can be provided on the inner walls of both side plates of the insulating housing, and at the same time, barb structures are provided on the left and right sides of the common ground shielding shell or terminal module, that is, at this time, no semi-dovetail protrusion or dovetail groove or T-shaped protrusion or T-shaped groove is provided on any side plate of the insulating housing as a guiding structure.

[0068] In other embodiments of the connector: dovetail protrusions or dovetail grooves or T-shaped protrusions or T-shaped grooves can be provided on the inner walls of the two side plates of the insulating housing. At the same time, matching dovetail grooves or dovetail protrusions or T-shaped grooves or T-shaped protrusions are provided on the left and right sides of the common ground shielding case or the terminal module. That is, at this time, there are no more card slots on any side plate of the insulating housing, and no more barb structures are provided on the common ground shielding case or the terminal module.

[0069] The embodiment of the common ground shielding case in the present utility model is: the specific structure of the common ground shielding case is the same as that of the common ground shielding case in any other connector embodiment except Embodiment 2, and will not be repeated here.

[0070] The embodiment of the insulating housing in the present utility model is: the specific structure of the insulating housing is the same as that of the insulating housing in any of the above connector embodiments, and will not be repeated here.

[0071] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present utility model should be equally included in the protection scope of the present utility model.

Claims

1. An insulating housing, characterized in that: The invention comprises two left and right side panels and a bottom panel (1-3) connected between the bottoms of the two side panels, wherein the inner walls opposite to each other of the two side panels are respectively provided with guide structures for guiding and cooperating with the cooperating structures on the left and right sides of the common ground shielding shell (2) or the terminal module (3), and engaging protrusions or engaging holes for engaging with the terminal module (3) when the terminal module (3) is installed in place, wherein the guide structure on the left side comprises a left stop surface for engaging with the corresponding cooperating structure when the left side panel is subjected to force and deforms to the left relative to the bottom panel (1-3), and the guide structure on the right side comprises a right stop surface for engaging with the corresponding cooperating structure when the right side panel is subjected to force and deforms to the right relative to the bottom panel (1-3).

2. The insulating housing according to claim 1, characterized in that: The guide structure on at least one side comprises a slot for buckling with a hook structure on the ground-sharing shielding shell (2) or the terminal module (3), and a slot wall on one side of the slot constitutes the left stop surface or the right stop surface.

3. The insulating housing according to claim 2, characterized in that: A convex rib (122) is provided on the inner wall of the side plate for guiding and cooperating with a groove on the common ground shielding shell (2) or the terminal module (3) up and down, and a notch is provided at the upper end of the convex rib (122) and on one side close to the inner wall of the side plate, the notch forming the slot.

4. The insulating housing according to claim 3, characterized in that: The convex rib (122) gradually inclines from top to bottom toward the inside of the insulating housing (1).

5. The insulating housing according to any one of claims 2 to 4, characterized in that: Only one side of the guide structure includes the aforementioned slot, and the other side of the guide structure is a dovetail protrusion or dovetail groove or T-shaped protrusion or T-shaped groove extending up and down.

6. A common ground shielding shell, characterized in that: The left and right outer side walls of the common ground shielding shell are provided with matching structures for matching with the guide structures on the inner walls of the left and right side plates of the insulating shell (1), respectively; the matching structure on the left side comprises a left stop wall for matching with the corresponding guide when the side plate on the left side of the insulating shell (1) is stressed and deforms to the left relative to the bottom plate (1-3); and the matching structure on the right side comprises a right stop wall for matching with the corresponding guide when the side plate on the right side of the insulating shell (1) is stressed and deforms to the right relative to the bottom plate (1-3).

7. The common ground shielding shell according to claim 6, characterized in that: The matching structure on at least one side includes a hook structure for buckling with a slot on the inner wall of the side plate, and the inner wall of the hook structure constitutes the left stop wall or the right stop wall.

8. The common ground shielding shell according to claim 7, characterized in that: A convex strip (2-2) is provided on the outer side wall of the common ground shielding shell, the convex strip (2-2) comprising two vertical strips (221) arranged vertically and a connecting strip (222) connected between the top ends of the two vertical strips (221), the groove formed by the two vertical strips (221) and the outer side wall of the common ground shielding shell is used for guiding the convex rib (122) on the inner wall of the side plate, and the connecting strip (222) is L-shaped to form the above-mentioned inverted hook structure.

9. The common ground shielding shell according to claim 8, characterized in that: The outer side wall of the common ground shielding shell used for surrounding the groove is gradually inclined from top to bottom toward the inside of the common ground shielding shell.

10. The common ground shielding shell according to any one of claims 7 to 9, characterized in that: Only one side of the mating structure includes the above-mentioned inverted hook structure, and the mating structure on the other side is a dovetail groove extending up and down and used to match the dovetail protrusion on the inner wall of the side panel, or a dovetail protrusion used to match the dovetail groove on the inner wall of the side panel, or a T-slot used to match the T-shaped protrusion on the inner wall of the side panel, or a T-shaped protrusion used to match the T-slot on the inner wall of the side panel.

11. A connector, characterized in that: The invention comprises an insulating shell (1) and a common ground shielding shell (2), wherein the insulating shell (1) is the insulating shell (1) as described in any one of claims 1 to 5, the guiding structure on the insulating shell (1) is guided and matched with the matching structure on the common ground shielding shell (2), and the common ground shielding shell (2) is the common ground shielding shell (2) as described in any one of claims 6 to 10.

12. A connector, characterized in that: The invention comprises an insulating housing (1) and a terminal module (3), wherein the insulating housing (1) is the insulating housing (1) according to any one of claims 1 to 5, and a guiding structure on the insulating housing (1) is guided and matched with a matching structure on the terminal module (3).

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