CN117117543A - PCB connector structure with insert-in dip angle and easy installation - Google Patents

Abstract

The utility model provides a PCB connector structure with insert and close inclination and easy installation, includes insulator, contact, the integrative setting of insulator sets up the blind hole that is used for the cartridge contact on it, the jack structure slope setting of contact, the inside cavity that sets up with jack structure matching of blind hole, the insulator outside set up with jack structure axis vertically inclined plane, set up the jack with insulator inside cavity intercommunication perpendicularly on the inclined plane, the grafting end of jack structure is aligned with the jack on the insulator and is matees. The invention can increase the matching angle for the two-body PCB socket and square disk socket, so as to increase the application condition of the product, simplify the structure of the product and reduce the assembly cost.

Description

PCB connector structure with insert-in dip angle and easy installation

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a PCB connector structure with an inserting inclination angle and easy installation.

Background

The electrical connector is widely used in various fields of communication, industry, traffic, etc., and meanwhile, requires quick and reliable connection between the plug and the socket. When the electric connector is applied to the cabinet, in order to realize quick connection of a PCB (printed circuit board) in the cabinet and a power supply outside the cabinet, a PCB socket is plugged with the PCB in the cabinet, then a square disk socket is plugged with the PCB socket, the square disk socket is penetrated and fixed on a panel of the cabinet, then a plug connected with the power supply outside the cabinet is plugged with the square disk socket, and the structure of the two-type connector (the PCB socket and the square disk socket are separately arranged) not only can quickly transmit the power supply outside the cabinet to the PCB in the cabinet, but also is convenient for automatic production and assembly of the PCB end, so that the electric connector is widely applied to the field of communication.

In the existing two-body type connector structure, the PCB socket and the square disc socket can only be horizontally inserted, when special requirements in actual production are met, the PCB socket is required to be inserted with the square disc socket at a certain angle in a deviating mode, and then the plug and the square disc socket are inserted at a certain angle so as to adapt to the space position of each device in the actual production, and the existing two-body type connector structure cannot be inserted at a certain angle in a deviating mode. In PCB sockets, including an insulator, a contact, the insulator typically includes an insulator housing, an insulator cover, and the contact is secured within the insulator housing using an insulator cover cap to secure the contact within the insulator housing. The contact piece needs to be buckled and fixed by an upper nonmetallic piece and a lower nonmetallic piece (an insulator shell and an insulator cover plate), the structure is complex, and the installation process needs at least two steps. In summary, the existing PCB socket has a single plugging direction, cannot meet plugging deviating from a certain angle, has a complex structure and high processing cost, and is complex to install, so that the application of the PCB socket is not wide enough.

Disclosure of Invention

In order to solve the technical problems of single plugging direction and complex structure of the PCB socket, the invention provides a PCB connector structure with plugging dip angle and easy installation.

The aim of the invention is realized by adopting the following technical scheme. The PCB connector structure with the plugging inclination angle and easy to install comprises an insulator and a contact piece, wherein the insulator is integrally provided with a blind hole for plugging the contact piece, a jack structure of the contact piece is obliquely arranged, a cavity matched with the jack structure is arranged in the blind hole, an inclined surface perpendicular to the axis of the jack structure is arranged outside the insulator, a jack communicated with the cavity in the insulator is vertically arranged on the inclined surface, and the plugging end of the jack structure is aligned and matched with the jack on the insulator.

Further, a protruding structure for wrapping the jack structure is arranged at a position, close to the jack structure, outside the insulator.

Further, the end face, located on the same side with the protruding structure, of the insulator is a horizontal plane for providing space for grabbing mechanical equipment.

Further, the plug-in end of the plug-in hole structure comprises a plurality of jack spring pieces which encircle to form plug-in holes, the jack spring pieces are of a cantilever structure, and after the contact is plugged in, a fit gap which is formed by outwards expanding the jack spring pieces is reserved between the inner wall of a cavity matched with the plug-in hole structure and the outer wall of the plug-in end of the plug-in hole structure.

Further, a pair of connecting plates which are parallel to each other are arranged at the rear end part of the jack structure towards the outer side part of the opening of the blind hole, and straight grooves for inserting and limiting the connecting plates are formed in the insulator.

Further, after the contact is inserted in place, the end part of the connecting plate, which is close to the inner side of the blind hole, is propped against the bottom of the straight groove, and an upper fixing platform for limiting the inner side of the connecting plate is formed at the bottom of the straight groove.

Furthermore, the two side ends of the connecting plate, which are propped against the bottom of the straight groove, are provided with fixed spring plates, the fixed spring plates are of cantilever structures, the fixed ends of the fixed spring plates are close to the inner side of the straight groove, the movable ends of the fixed spring plates face the outer side of the straight groove, and in a natural state, the fixed spring plates tilt and are higher than the connecting plate; the lateral wall in straight flute sets up the spacing groove that is used for holding fixed shell fragment, and at contact plug-in mounting in-process, fixed shell fragment is extruded by straight flute lateral wall, waits the cartridge to put in place, and fixed shell fragment marches to the spacing groove and resumes the original form, and the tip of fixed shell fragment towards the straight flute outside supports on the lateral wall that the spacing groove is close to the straight flute outside.

Further, an observation hole penetrating through the wall body of the insulator is formed in the insulator, and the observation hole is communicated with a limiting groove close to the wall body where the observation hole is formed.

Further, a chamfer for guiding the connecting plate to enter the straight groove is arranged at the opening of the straight groove.

Furthermore, a plurality of pins for being inserted with the PCB are distributed at the end part, facing the outer side of the blind hole, of the connecting plate.

Compared with the prior art, the invention has the following advantages: the jack part with the inclination angle R is added on the PCB socket, and when the situation that the plugging angle needs to be changed is met in actual production, the jack part with the corresponding inclination angle can be designed according to the specific plugging angle. The insulator is integrated with the cooperation and the fixed knot of contact, can make PCB socket structure simplify, simple to operate only need with the contact cartridge in the blind hole of insulator, can accomplish the installation of PCB socket. In summary, the invention can increase the matching angle for the two-body PCB socket and square plate socket, so as to increase the application condition of the product, simplify the structure of the product and reduce the assembly cost.

The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view at A in FIG. 2;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a cross-sectional view at B in FIG. 4;

FIG. 6 is a cross-sectional view at C in FIG. 4;

FIG. 7 is a front view of FIG. 1;

FIG. 8 is a cross-sectional view at D in FIG. 7;

FIG. 9 is a bottom view of FIG. 7;

FIG. 10 is a schematic view of the embodiment of FIG. 1 mounted on a PCB and plugged into a square tray receptacle;

FIG. 11 is an exploded view of an embodiment of the present invention;

FIG. 12 is a perspective view of a contact in an embodiment of the present invention;

fig. 13 is a perspective view of an insulator according to an embodiment of the present invention;

fig. 14 is a perspective view of another view of an insulator in accordance with an embodiment of the present invention.

[ reference numerals ]

1-insulator, 101-bump structure, 102-engagement surface, 103-horizontal plane, 104-inclined plane, 105-lower fixed platform, 106-upper fixed platform, 107-platform connection surface, 108-fit gap, 109-straight slot, 110-jack, 111-blind hole, 112-viewing hole, 113-limit slot, 114-guide post, 115-chamfer, 116-fixed boss, 2-contact, 201-fixed spring, 202-pin, 203-jack structure, 204-connection plate, 205-jack spring, 206-extension plate, 3-PCB socket, 4-square-disk socket, 5-square-disk, 6-PCB board.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

An embodiment of a PCB connector structure with a plugging tilt angle and easy installation according to the present invention is shown in fig. 1 to 14. In this embodiment, this PCB connector structure specifically is PCB socket 3, and PCB socket 3 includes insulator 1, contact 2, and insulator 1 is integrated into one piece structure, and contact 2 direct cartridge has simplified the overall structure of connector in insulator 1, makes the installation simpler swift. In order to adapt to the plugging angle under the special condition, on the basis of the horizontal plugging of the existing PCB socket and square disk socket, an angle R is increased in the opposite plugging direction of the PCB socket 3 and the square disk socket 4 in the embodiment, so that the plugging angle R of the PCB socket 3 and the square disk socket 4 under the special condition is realized, as shown in fig. 10, the square disk socket 4 is inclined by the angle R, and when a plug is plugged in the square disk socket, the angle R can be inclined to adapt to the space position of an equipment device under the special condition. When the PCB socket 3 is inserted on the PCB 6, the square disk socket 4 is fixed on the cabinet through the square disk 5 of the square disk socket 4, and is simultaneously inserted with the PCB socket 3, and the plug is inserted on the square disk socket 5, so that the electrical connection between the plug and the PCB is realized.

For convenience of explanation, in this embodiment, the surface of the PCB socket 3 that is inserted into the PCB board 6 is a lower end surface, the other end surface is an upper end surface, the surface that is close to the square socket 4 is a front end surface, the other end surface is a rear end surface, and the other two surfaces are a left end surface and a right end surface, respectively.

In the existing horizontal plug-in PCB socket, an insulator of the PCB socket comprises a shell and a cover plate, a contact piece of the PCB socket comprises a jack structure which is plugged with a square disc socket and pins which are plugged with the PCB, and the jack structure and the pin plug-in direction are mutually perpendicular. The shell is in a vertically through cuboid shape, the contact piece is inserted into the shell from top to bottom, the lower end part of the contact piece is propped against a boss at the edge of an opening at the lower end of the shell, the pins extend out of the lower part of the shell and are used for being inserted into a PCB, and then the cover plate covers the shell from top to bottom, so that the contact piece is fixed in the shell. The jack structure aligns the jack of insulator lateral wall, and square dish socket's one end level passes the jack and inserts the jack structure, and square dish socket passes through the square dish to be fixed on rack panel, then makes the other end grafting of plug and square dish socket, realizes the electricity and connects, and insulator part among the prior art is more, and the structure is complicated, and self installation needs two steps at least, and the installation is comparatively complicated, and plug and square dish socket can only the horizontal cartridge simultaneously.

The invention improves on the basis of the prior horizontal plugging PCB socket. The insulator 1 in this embodiment is an integral structure, and changes two parts of the shell and the cover plate in the prior art into a part, so that the structure is simplified, and the processing cost can be reduced. The insulator is provided with the inserting hole, and after the contact 2 is inserted and fixed in the insulator 1, the connector can be installed simply and quickly.

The insulator 1 is provided with blind holes 111 as insertion holes, the number of the blind holes 111 is identical to the number of the contacts 1 mounted on the insulator 1, and in this embodiment, two contacts 1 are inserted on the insulator 2, so that two blind holes 111 are arranged in parallel on the insulator 1. The opening of the blind hole 111 is provided at the bottom of the insulator 1, the upper portion of the insulator is closed, the lower portion is opened, a cavity for accommodating the contact 2 is formed inside, and the contact 2 is inserted into the insulator from the blind hole opening.

The protruding structure 101 is added to the upper end of the insulator 1 near the front side, the front end near the upper side and the protruding structure 101 incline to the rear side, an inclined surface 104 is formed on the outer side of the insulator, and the inclined surface 104 is perpendicular to the inserting direction. The insulator at the location of the inclined surface 104 is provided with a jack 110 vertically penetrating into the insulator cavity for plugging into a square-dish socket. The number of the contacts 2 is consistent with that of the jacks 110, and the plugging ends of the square-disc socket penetrate through the jacks 110 and then are plugged with the corresponding jack structures of the contacts 2 in the insulator. Because the inclined surface 104 has a certain inclination angle, after the square disk socket 4 is plugged with the PCB socket 3, the matched surfaces of the square disk socket 4 and the PCB socket are inclined, so that a certain plugging angle is realized according to the requirement. The protruding structure 101 is convenient under the condition that has the opposite-plug dip angle, and the jack portion of the PCB socket 3 (including the jack 110 on the insulator and the jack structure on the contact piece) can be lifted upwards by an angle, and the jack structure of the contact piece is wrapped by the insulator 1 while being lifted upwards, namely, the top of the cavity of the insulator is obliquely arranged, so that the jack structure of the contact piece is wrapped, and the electrified leakage is prevented.

The rear end of the protruding structure 101 is engaged with the upper end surface of the rear side of the insulator, which is a horizontal plane 103 with a minimum dimension of Min phi 7mm (i.e. a minimum dimension of 7mm in any direction of the plane), and the horizontal plane 103 provides enough space for mechanical equipment to grasp the PCB socket 3 and install on the PCB 6, which is convenient for mechanical equipment to grasp during factory automation. The surface that protruding structure 101 surface and horizontal plane are connected is linking face 102, and the contained angle between linking face 102 and the horizontal plane 103 is great for the high quick reduction of linking face 102 from protruding structure one side to horizontal plane 103 reduces the influence to the horizontal plane size, in order to guarantee that the area of being snatched of horizontal plane 103 is Min phi 7mm.

In other embodiments of the present invention, the thickness of the top of the insulator may be increased without providing the protrusion 101, the cavity is provided on the top of the insulator to be lifted obliquely, the front end surface of the upper part of the insulator is provided with an inclined surface, the inclined surface is vertically provided with a jack, and the jack structure of the contact is aligned with the jack after being mounted in the insulator, so as to realize the opposite insertion with the square socket. The scheme can keep the PCB socket square integrally, and the PCB sockets are stacked together conveniently.

The contact 2 comprises a socket structure 203, a connection plate 204, pins 202. The whole contact piece 2 is manufactured by adopting a material strip cutting and bending mode. The upper end of the contact 2 is a jack structure 203, the jack structure 203 is obliquely arranged and lifted upwards relative to the horizontal direction to be matched with the jack 110 on the insulator, and meanwhile, the upper half of the jack structure 203 is matched with the inner wall of the top of the insulator cavity. The plugging end of the jack structure 203 is matched with the front inner wall of the upper part of the insulator cavity, meanwhile, the plugging hole of the jack structure 203 is aligned with the jack 110, and when the square disk socket is plugged with the PCB socket, the square disk socket is plugged with the jack structure 203 through the jack 110.

The plugging end of the jack structure is a plugging hole formed by surrounding a plurality of jack shrapnel 205, as shown in fig. 12, the jack shrapnel 205 is of an arc cantilever structure, the fixed end of the jack shrapnel 205 is arranged at the rear end of the jack structure, the movable end of the jack shrapnel 205 forms the plugging end, and the movable end of the jack shrapnel 205 is folded towards the axis direction of the jack shrapnel. In this embodiment, the plugging end of the jack structure is surrounded by four jack spring pieces 205 to form a plugging hole. When the plugging end of the square-disc socket is inserted into the jack structure 203, the jack elastic sheet 205 expands outwards and clamps the plugging end of the square-disc socket under the action of self elastic force. Therefore, when the contact 2 is installed in the insulator 1, the outer surface of the upper portion of the jack structure 203 and the inner wall of the top of the cavity of the insulator leave a fit clearance 108, meanwhile, as the jack structure 203 is inclined upward, a space is left below the jack structure, and the jack spring 205 at the lower portion of the jack structure 203 can expand downward, and the fit clearance 108 and the space at the lower portion of the jack structure 203 combine to leave an outwardly expanding space for the jack structure to be inserted.

The horizontal cross section of the blind hole 111 of the insulator 1 is matched with the cross section of the jack structure 203 on the horizontal plane, so that the jack structure 203 can be conveniently inserted into the blind hole from the opening of the blind hole 111.

The lower part of the rear end part of the jack structure 203 is opened, the left and right edges of the opening extend downwards to form extension plates 206, and the lower end parts of the extension plates 206 are respectively vertically provided with connecting plates 204 extending front and back, namely, two connecting plates 204 are correspondingly arranged below each jack structure 203. The lower end of the insulator is provided with a straight groove 109 for inserting the connecting plate 204, the opening of the straight groove 109 is arranged on the lower end surface of the insulator and extends upwards from the lower end surface of the insulator, and the inner cavity of the straight groove 109 is communicated with the cavity corresponding to the blind hole.

Two connecting plates 204 are arranged on each contact piece, and each blind hole 111 is communicated with two straight grooves 109 correspondingly arranged. The length of the connecting plate 204 in the front-rear direction is greater than the length of the jack structure in the front-rear direction, and therefore the length of the straight groove 109 in the front-rear direction is greater than the length of the blind hole 111 in the front-rear direction, and the straight groove 109 is divided into front and rear portions by the blind hole 111. The width of the straight groove 109 is matched with the thickness of the connecting plate 204, the depth of the straight groove is matched with the height of the connecting plate 204, and the depth of the straight groove is smaller than the depth of the blind hole 111.

The whole straight slot 109 is divided into a front part and a rear part by the bottom part of the blind hole 111, the bottom part of the straight slot 109 forms two upper fixing platforms 106 at the front part and the rear part of the insulator, the contact 203 is inserted into the blind hole 111 of the insulator from the lower part, the jack structure 203 passes through the blind hole, then the upper edges of the front end part and the rear end part of the connecting plate 204 are propped against the corresponding upper fixing platforms 106, so that the jack structure 203 is limited to move upwards continuously, the contact is positioned at the upper part, and the contact is installed in place.

The fixed spring 201 is arranged at the lower parts of the front end and the rear end of the connecting plate 204, the fixed spring 201 is of a cantilever structure, the fixed end of the upper part of the fixed spring 201 is arranged on the connecting plate 204, the lower part of the fixed spring is a movable end, and in a natural state, the fixed spring 201 of the jack structure 203 is tilted outwards. Two fixed shrapnel 201 are arranged on the front side and the rear side of each contact piece 2, and the tilting directions of the two fixed shrapnels 201 are opposite and all face to the outer side. Limiting grooves 113 are formed in the wall bodies of the front end portion and the rear end portion of the straight groove 109, openings of the limiting grooves 113 are located on the side walls of the straight groove 109, limiting grooves 113 are formed in the front portion and the rear portion of two straight grooves corresponding to the same blind hole, and the two limiting grooves 113 located on the same side in the front-rear direction extend in opposite directions and are matched with the positions of the fixed elastic pieces 201. The lower side wall of the limiting groove forms a lower fixing platform 105 for limiting the downward movement of the connection plate. When the contact 2 is inserted, when the connecting plate passes through the straight groove, the fixed elastic sheet 201 is compressed by the side wall of the straight groove, the fixed elastic sheet 201 is to be moved to the limiting groove 113, the limiting groove 113 provides a space for the fixed elastic sheet 201 to restore to the original shape, the contact 2 is installed in place, and the lower end of the fixed elastic sheet 201 is abutted against the lower fixed platform 105, so that positioning of the lower part of the contact is realized.

The front and rear ends of the connecting plate 204 respectively abut against the front and rear end surfaces of the straight groove, so that the front and rear positioning of the contact 2 is realized. After the connecting plate 204 is inserted into the straight groove 109, the left and right side walls of the connecting plate 204 are abutted against the side walls of the straight groove 109, so that the limit of the contact piece in the left and right directions is realized. The contact piece is fixedly arranged in the insulator through limiting the connecting plate in all directions.

One side of the limiting groove is communicated with the blind hole, and the front end surface and the rear end surface of the straight groove form a platform connecting surface 107 for connecting the upper fixing platform 106 and the lower fixing platform 105. After the contact 2 is mounted on the insulator 1, whether the fixing spring 201 is mounted in place or not is easily observed from the opening of the blind hole, as shown in fig. 1.

The straight groove 109 is provided with a chamfer 115 at the opening of the lower end surface of the insulator, and can guide the front and rear end parts of the connecting plate and the tilted fixed spring piece 201 into the straight groove 109.

The front end portion of the insulator 1 is provided with the observation hole 112, the opening of the observation hole 112 is located on the front end face of the insulator 1, the observation hole 112 is communicated with the limit groove 113 close to the front end portion of the insulator, when the contact is installed in place, the fixed elastic sheet 201 is located in the limit groove 113, the fixed elastic sheet 201 can be observed from the observation hole 112, and therefore whether the contact is installed in place or not can be observed from the observation hole in the contact installation process.

The lower end of the connecting plate 204 is provided with a plurality of pins 202 along the length direction, and after the contact piece is installed in place, the pins 202 are positioned outside the blind holes, so that the contact piece can be inserted with a PCB. The guide posts 114 are distributed on the insulator between the two blind holes, the height of the guide posts 114 extending out of the lower end face of the insulator is higher than the height of the pins 202 extending out of the lower end face of the insulator, when the PCB socket is inserted on the PCB, the guide posts 114 are inserted into the guide holes on the PCB, and then the pins 202 are guided and inserted on the PCB.

The four corners of the insulator are provided with fixing bosses 116 for being inserted and fixed in the mounting holes of the PCB board, thereby fixing the PCB socket 3 on the PCB board 6.

The jack part with the inclination angle R, the corresponding convex structure 101 and the corresponding fit clearance 108 are added in the PCB socket, and when the situation that the plugging angle needs to be changed in actual production is met, the jack part with the corresponding inclination angle can be designed according to the specific plugging angle. The insulator is integrated with the cooperation and the fixed knot of contact, can make PCB socket structure simplify, simple to operate only need with the contact cartridge in the blind hole of insulator, can accomplish the installation of PCB socket. In summary, the invention can increase the matching angle for the two-body PCB socket and square plate socket, so as to increase the application condition of the product, simplify the product structure and reduce the assembly cost.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a PCB connector structure with insert and close inclination and easy installation, includes insulator (1), contact (2), its characterized in that: the insulator (1) is integrally arranged, a blind hole (111) for inserting the contact (2) is formed in the insulator, a jack structure (203) of the contact (2) is obliquely arranged, a cavity matched with the jack structure (203) is formed in the blind hole, an inclined surface (104) perpendicular to the axis of the jack structure (203) is arranged outside the insulator (1), a jack (110) communicated with the cavity in the insulator is vertically formed in the inclined surface, and the inserting end of the jack structure (203) is aligned with the jack (110) in the insulator.

2. A PCB connector structure with plugging inclination and easy installation according to claim 1, wherein: the position outside the insulator (1) near the jack structure (203) is provided with a protruding structure (101) for wrapping the jack structure (203).

3. A PCB connector structure with plugging inclination and easy installation according to claim 2, wherein: the end face, which is positioned on the same side as the protruding structure (101), of the insulator (1) is a horizontal plane (103) for providing space for grabbing mechanical equipment.

4. A PCB connector structure with plugging inclination and easy installation according to claim 1, wherein: the plug-in end of the plug-in hole structure (203) comprises a plurality of jack spring pieces (205) which encircle to form plug-in holes, the jack spring pieces (205) are of a cantilever structure, and after the contact is plugged in, a fit gap (108) which is formed by outwards expanding the jack spring pieces (205) is reserved between the inner wall of a cavity matched with the plug-in hole structure and the outer wall of the plug-in end of the plug-in hole structure (203).

5. A PCB connector structure with plugging inclination and easy installation according to claim 1, wherein: a pair of mutually parallel connecting plates (204) are arranged at the rear end part of the jack structure (203) towards the outer side part of the opening of the blind hole, and straight grooves (109) for inserting and limiting the connecting plates are arranged on the insulator.

6. The PCB connector structure of claim 5, wherein the PCB connector structure has a plugging tilt angle and is easy to install, wherein: after the contact (2) is inserted in place, the end part of the connecting plate, which is close to the inner side of the blind hole, is propped against the bottom of the straight groove (109), and an upper fixing platform (106) for limiting the inner side of the connecting plate is formed at the bottom of the straight groove (109).

7. The PCB connector structure of claim 6, wherein the PCB connector structure has a plugging tilt angle and is easy to install, wherein: the connecting plate (204) is propped against the two side ends of the bottom of the straight groove (109), the fixed elastic piece (201) is of a cantilever structure, the fixed end of the fixed elastic piece is close to the inner side of the straight groove, the movable end of the fixed elastic piece faces the outer side of the straight groove, and in a natural state, the fixed elastic piece (201) is tilted and is higher than the connecting plate (204); the lateral wall of straight flute (109) sets up spacing groove (113) that are used for holding fixed shell fragment, and at contact plug-in mounting in-process, fixed shell fragment (201) are extruded by the straight flute lateral wall, wait the cartridge to put in place, and fixed shell fragment (201) march to spacing groove (113) and restore the original form, and the tip of fixed shell fragment (201) towards the straight flute outside supports on the lateral wall that the spacing groove is close to the straight flute outside.

8. The PCB connector structure of claim 7, wherein the PCB connector structure has a plugging tilt angle and is easy to install, wherein: an observation hole (112) penetrating through the wall body of the insulator is formed in the insulator, and the observation hole (112) is communicated with a limit groove (113) close to the wall body where the observation hole is formed.

9. The PCB connector structure of claim 5, wherein the PCB connector structure has a plugging tilt angle and is easy to install, wherein: and a chamfer (115) for guiding the connecting plate to enter the straight groove is arranged at the opening of the straight groove (109).

10. The PCB connector structure of claim 5, wherein the PCB connector structure has a plugging tilt angle and is easy to install, wherein: and a plurality of pins (202) for being inserted with the PCB are distributed on the end part, facing the outer side of the blind hole, of the connecting plate (204).