Plug connector with floating structure
Technical Field
The present invention relates to connectors, and more particularly to a plug connector with a floating structure.
Background
The plug-in connector consists of a male end connector and a female end connector, when the plug-in connector is used, the female end connector is fixedly welded on a circuit board, the male end connector is arranged on a functional electronic element, and when the male end connector is inserted into a plugging groove of the female end connector, a male end signal terminal on the male end connector is in close contact with a female end signal terminal of the female end connector, which extends into the plugging groove, so that the circuit is conducted to transmit signals.
The insulating main body of the current female connector is of an integral structure, and the structure ensures that the positions of the plugging grooves on the female connector and the female signal terminals in the plugging grooves are fixed after the female connector is welded on a circuit board. When the male connector is inserted into the inserting groove of the female connector, the male connector and the electronic element thereon are fixed, and at this time, if the clearance between the side wall of other parts on the circuit board and the outer side wall of the male connector and the outer side wall of the electronic element thereon is small due to processing or welding errors, interference phenomenon occurs, so that the male connector cannot be normally inserted into the inserting groove of the female connector, or after the male connector is inserted, the male signal terminal and the female signal terminal cannot be ensured to be stably transmitted. And above-mentioned female end connector structure still leads to male end connector to carry out sharp plug along upper and lower direction when the plug must, if push-pull force and vertical direction exist the contained angle in the plug in-process, can lead to male end connector and female end connected jack-in groove to exist the contained angle, can damage the connector.
Disclosure of Invention
In order to make up for the defects, the invention provides the plug connector with the floating structure, which can realize that the plug groove of the female end connector floats in a three-dimensional space with a certain range, is convenient for plugging and unplugging the male end connector, ensures stable signal transmission and effectively prolongs the service life of the connector.
The technical scheme adopted by the invention for solving the technical problems is as follows: the female end connector comprises a female end fixed insulating main body, a female end floating insulating main body and a female end signal terminal, wherein the female end fixed insulating main body is provided with a fixed insulating main body terminal fixing part, the female end floating insulating main body can move in a certain range along the up-down direction, the left-right direction and the front-back direction and is arranged on the female end fixed insulating main body, the female end floating insulating main body is provided with a plugging slot for inserting the male end connector, the female end floating insulating main body is internally provided with a floating insulating main body terminal fixing part, a floating section of a continuous wave-shaped structure is formed in the middle of the female end signal terminal, the female end signal terminal sequentially forms a female end signal terminal fixing end fixing section and a female end signal terminal welding section from the middle to one end, the female end signal terminal sequentially forms a female end signal terminal floating end fixing section and a female end signal terminal contact section from the middle to the other end, the floating section in the middle of the female end signal terminal can elastically deform in the up-down direction, the left-right direction and the front-back direction under the action of external force, the female end signal terminal fixing end fixing section can be fixedly positioned on the fixed insulating main body terminal fixing part, the female end signal terminal welding section can extend out of the female end fixed insulating main body, the female end signal terminal floating end fixing section can be fixedly positioned on the floating insulating main body terminal fixing part, the female end signal terminal contact section extends into the inserting groove of the female end floating insulating main body, and the female end signal terminal contact section can be tightly contacted and conducted with the male end signal terminal on the male end connector inserted into the inserting groove.
As a further improvement of the invention, at least two connecting arms are arranged on the female end fixed insulating main body at intervals, connecting jacks are arranged on each connecting arm, plug-in lugs are respectively arranged on at least two side walls of the female end floating insulating main body, the plug-in lugs on each side wall of the female end floating insulating main body are respectively inserted into the plug-in holes on each connecting arm at intervals, and each side wall of the female end floating insulating main body is blocked by each connecting arm so that the plug-in lugs on the female end floating insulating main body cannot be separated from the corresponding plug-in holes.
As a further improvement of the invention, the connecting arm comprises an insulating retaining wall and a female end fixed iron shell which are integrally formed on the female end fixed insulating main body, the insulating retaining wall extends along the upper and lower directions, a concave open slot structure is formed at the upper end of the insulating retaining wall, at least one limit slot is respectively formed on two opposite side walls extending along the upper and lower directions of the insulating retaining wall, the female end fixed iron shell comprises a U-shaped connecting structure with a downward opening, at least one inwards protruding retaining salient point is respectively arranged on two opposite side walls of the U-shaped connecting structure of the female end fixed iron shell, the U-shaped connecting structure of the female end fixed iron shell is sleeved on the insulating retaining wall from top to bottom, the bottom surface of the U-shaped connecting structure of the female end fixed iron shell and the open slot structure at the upper end of the insulating retaining wall jointly form a plug hole on the connecting arm, two side walls of the U-shaped connecting structure of the female end fixed iron shell are coated on the two opposite side walls of the insulating retaining wall, and the two opposite side walls of the U-shaped connecting structure of the female end fixed iron shell are respectively fixedly arranged on the two opposite side walls of the insulating retaining wall.
As a further improvement of the invention, the fixing convex points on the side wall of the U-shaped connecting structure of the female end fixing iron shell are inclined elastic arms formed by tearing and bending, and the inclined elastic arms extend obliquely from bottom to top towards the inner direction of the U-shaped connecting structure.
As a further improvement of the invention, the female end fixed insulating main body is also integrally formed with an iron shell limiting wall extending along the up-down direction, the iron shell limiting wall and the side wall of the insulating retaining wall, which is provided with limiting grooves, are arranged at intervals in parallel, and one side surface of the side wall of the U-shaped connecting structure of the female end fixed iron shell, which is back to the side wall of the insulating retaining wall, is stopped on the surface of the iron shell limiting wall.
As a further improvement of the invention, the lower ends of the side walls of the U-shaped connecting structure of the female end fixed iron shell are respectively provided with welding feet which can be welded and fixed with the circuit board, the side walls of the U-shaped connecting structure of the female end fixed iron shell are fixedly connected through connecting pieces which are vertical to the bottom surface of the U-shaped connecting structure, and the connecting pieces are coated on the surface of one side of the insulating retaining wall, which faces away from the female end, of the floating insulating main body.
As a further improvement of the invention, the front limit wall, the rear limit wall, the left limit wall, the right limit wall and the lower limit table are also fixedly arranged on the female end fixed insulating main body, and the front side surface, the rear side surface, the left side surface, the right side surface and the lower side surface of the female end floating insulating main body are respectively stopped on the surfaces of the front limit wall, the rear limit wall, the left limit wall, the right limit wall and the lower limit table.
As a further improvement of the present invention, the fixing insulating main body terminal fixing portion is a plurality of fixing grooves extending up and down and arranged on two opposite side walls of the female end fixing insulating main body at intervals, the floating insulating main body terminal fixing portion is a fixing hole extending up and down and arranged on the bottom surface of the inserting groove of the female end floating insulating main body, a first fixing clamping point and a second fixing clamping point are respectively arranged on the side walls of the female end signal terminal fixing end fixing section and the female end signal terminal floating end fixing section of the female end signal terminal, the female end signal terminal fixing end fixing section and the female end signal terminal floating end fixing section of the female end signal terminal are respectively inserted into the fixing groove and the fixing hole, the first fixing clamping point and the second fixing clamping point are respectively embedded into the fixing groove and the inner side wall of the fixing hole, and the floating section of the female end signal terminal is accommodated in a gap between the lower side wall of the female end floating insulating main body and the upper side surface of the female end fixing insulating main body.
As a further improvement of the invention, the contact limiting wall is arranged in the inserting groove of the female-end floating insulating main body, the lower end of the contact limiting wall is integrally formed on the bottom surface of the inserting groove, the contact limiting wall extends along the up-down direction, the side wall of the contact limiting wall is provided with a plurality of contact section limiting grooves extending along the up-down direction, and the female-end signal terminal contact sections of the female-end signal terminals are respectively and closely inserted in the contact section limiting grooves in a one-to-one correspondence manner.
As a further improvement of the invention, the lower side surface of the female-end floating insulating main body forms a step structure with low middle height and high peripheral height in the extending direction of the middle section of the female-end signal terminal, the upper side surface of the female-end fixed insulating main body also forms a step structure with low middle height and high peripheral height in the extending direction of the middle section of the female-end signal terminal, the distance between the middle of the lower side surface of the female-end floating insulating main body and the middle of the upper side surface of the female-end fixed insulating main body is smaller than the distance between the peripheral section of the lower side surface of the female-end floating insulating main body and the periphery of the upper side surface of the female-end fixed insulating main body, one end of the floating section of the female-end signal terminal and the fixed end section of the female-end signal terminal jointly form a U-shaped bending structure with downward opening, and the other end of the floating section of the female-end signal terminal jointly forms a U-shaped bending structure with upward opening.
The beneficial technical effects of the invention are as follows: according to the invention, the insulating main body part connected with the female end is designed into a split structure, the female end floating insulating main body can move relative to the female end fixed insulating main body in a certain range of three-dimensional space, meanwhile, a wave-shaped floating section is formed on the female end signal terminal through repeated bending, the floating section can elastically deform the female end signal terminal in the up-down direction, the left-right direction and the front-back direction by utilizing the wave-shaped bending structure, on one hand, the elastic force of the floating section can provide a holding force for the female end floating insulating main body to be kept at a preset position, on the other hand, the elasticity of the floating section can also adaptively and automatically fine-tune the position and the inclination angle of the inserting groove in the inserting and extracting process of the male end connector, so that the male end connector can be smoothly inserted and extracted, the connector is not damaged even if the male end connector is obliquely inserted and extracted, the position of an electronic element on the male end connector can be fine-tuned in a certain range of three-dimensional space, interference is further avoided, the male end connection can be smoothly connected with the female end connection by ensuring that the male end signal terminal is tightly contacted with the female end signal terminal, and the signal is kept tightly and stably transmitted after connection.
Drawings
FIG. 1 is an exploded perspective view of a female end connector of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a cross-sectional perspective view of A-A of FIG. 2;
FIG. 4 is a front cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a front view in section B-B of FIG. 2;
FIG. 6 is a front view in section C-C of FIG. 2;
FIG. 7 is a front view of the present invention;
FIG. 8 is a right side view of the present invention;
fig. 9 is a perspective view of a female end fixed insulating body of the present invention;
FIG. 10 is a first perspective view of a female end floating insulator body of the present invention;
FIG. 11 is a second perspective view of the female end floating insulator body of the present invention;
FIG. 12 is a perspective view of a female signal terminal of the present invention;
Fig. 13 is a schematic diagram showing the mated state of the present invention and the male connector.
Detailed Description
Examples: the female connector 2 comprises a female fixed insulating main body 21, a female floating insulating main body 22 and a female signal terminal 23, wherein the female fixed insulating main body 21 is provided with a fixed insulating main body terminal fixing part 211, the female floating insulating main body 22 can move along the up-down direction, the left-right direction and the front-back direction in a certain range and is arranged on the female fixed insulating main body 21, the female floating insulating main body 22 is provided with a plugging groove 227 for inserting the male connector 1, the female floating insulating main body 22 is internally provided with a floating insulating main body terminal fixing part 221, the middle of the female signal terminal 23 is provided with a floating section 233 with a continuous wave structure, female-end signal terminal 23 sequentially forms female-end signal terminal fixing end holding section 231 and female-end signal terminal welding section 234 from the middle to one end, female-end signal terminal 23 sequentially forms female-end signal terminal floating end holding section 232 and female-end signal terminal contact section 235 from the middle to the other end, floating section 233 in the middle of female-end signal terminal 23 can elastically deform in up-down direction, left-right direction and front-back direction under the action of external force, female-end signal terminal fixing end holding section 231 can be fixedly positioned on fixed-insulation main body terminal holding section 211, female-end signal terminal welding section 234 can extend outside female-end fixed-insulation main body 21, female-end signal terminal floating end holding section 232 can be fixedly positioned on floating-insulation main body terminal holding section 221, female-end signal terminal contact section 235 extends into plugging slot 227 of female-end floating-insulation main body 22, the female signal terminal contact section 235 is capable of being brought into close contact conduction with the male signal terminal 12 on the male connector 1 inserted into the insertion groove 227.
In use, the welding section of the female-end signal terminal 23 is welded on the circuit board, since the female-end signal terminal fixing section 231 of the female-end signal terminal 23 is fixed on the fixed insulating body terminal fixing portion 211 of the female-end fixed insulating body 21, the female-end fixed insulating body 21 of the female-end connector 22 maintains a fixed positioning state with the circuit board, since the middle of the female-end signal terminal 23 forms a floating section 233 of a continuous wave structure, the floating section 233 in the middle of the female-end signal terminal 23 can generate bending deformation and a certain degree of twisting deformation in the up-down, left-right and front-back directions, the female-end floating insulating body 22 can generate translational and tilting movements in a certain range of three-dimensional space on the female-end fixed insulating body 21, so that the plugging slot 227 on the female-end floating insulating body 22 forms a floating structure, when the male connector 1 is inserted into the insertion groove 227 connected with the female connector, the male signal terminals 12 and the female signal terminals 23 are kept in close contact for conduction, and generally, the male signal terminals 12 are formed in the male connector 1 to form a receiving groove for the male signal terminals 12, a male contact holding section, a male end welding section and a male end welding section on the male signal terminals 12 are formed, the male end welding section is used for welding on an electronic component main board, the male end holding section is used for being fixed on an insulating main body of the male connector 1, the male contact sections are bent to form an elastic clamping piece structure, the male contact sections of the grouped male signal terminals 12 are tightly clamped on the surfaces of the female signal terminal contact sections 235 of the grouped female signal terminals 23 to form stable signal transmission, and as the insertion groove 227 for plugging the male connector 1 forms a floating structure, the floating structure can be generated front, back, left, right, and left and right, therefore, the male connector 1 will not damage the terminals of the connector even if tilting occurs during the plugging process, and even if there is a certain dimensional error in other parts on the circuit board, the dimensions between the side walls of the electronic components left on the male connector 1 and the parts are smaller, the male connector 1 and the female connector 2 can be smoothly plugged by tilting and floating horizontally, and the male signal terminal 12 and the female signal terminal 23 can be kept stably conducted after plugging, and the structure has a good anti-seismic effect.
The female end fixed insulation main body 21 is provided with at least two connecting arms at intervals, each connecting arm is provided with a connecting jack 217, at least two side walls of the female end floating insulation main body 22 are respectively provided with a plug lug 222, the plug lugs 222 on each side wall of the female end floating insulation main body 22 are respectively inserted into the plug holes on each connecting arm in a clearance way, and each side wall of the female end floating insulation main body 22 is blocked by each connecting arm so that the plug lugs 222 on the female end floating insulation main body cannot be separated from the corresponding plug holes.
After the plugging lug 222 on the side wall of the female end floating insulating main body 22 is inserted into the connecting jack 217 of each connecting arm at the upper end of the female end fixed insulating main body 21, the plugging lug 222 can move up and down for a certain distance in the connecting jack, so that the limitation of the floating range on the female end fixed insulating main body 21 can be realized, the female end fixed insulating main body 21 can not be separated, two connecting arms are optimally arranged on the female end fixed insulating main body 21, and the two connecting arms are symmetrically distributed on the left side and the right side of the female end fixed insulating main body 21.
The connecting arm comprises an insulating retaining wall 218 and a female end fixed iron shell 24 which are integrally formed on the female end fixed insulating main body 21, the insulating retaining wall 218 extends along the up-down direction, a concave open slot structure 216 is formed at the upper end of the insulating retaining wall 218, at least one limit slot 2181 is respectively formed on two opposite side walls extending along the up-down direction of the insulating retaining wall 218, the female end fixed iron shell 24 comprises a U-shaped connecting structure with a downward opening, at least one inwards protruding retaining bump 242 is respectively arranged on two opposite side walls of the U-shaped connecting structure of the female end fixed iron shell 24, the U-shaped connecting structure of the female end fixed iron shell 24 is sleeved on the insulating retaining wall 218 from top to bottom, the U-shaped connecting structure bottom surface 241 of the female end fixed iron shell 24 covers the upper end surface of the insulating retaining wall 218, plug holes on the connecting arm are jointly formed by the U-shaped structure bottom surface of the female end fixed iron shell 24 and the open slot structure 216 at the upper end of the insulating retaining wall 218, the two side walls of the U-shaped connecting structure of the female end fixed iron shell 24 cover the two opposite side walls of the insulating retaining wall 218, and the two opposite side walls of the U-shaped connecting structure of the female end fixed iron shell 24 are correspondingly arranged on the two opposite side walls of the insulating retaining wall 218.
The fixed connection structure is formed after the assembly of the female end fixed iron shell 24 and the insulating retaining wall 218 on the female end fixed insulating main body 21, the connection jack 217 is formed by the open slot structure 216 at the upper end of the insulating retaining wall 218 and the bottom surface 241 of the U-shaped connection structure of the female end fixed iron shell 24, so that the female end fixed insulating main body 21 is conveniently formed by the connection jack 217, the female end fixed iron shell 24 is of a metal structure, the upper side 2221 of the plug-in lug 222 can be effectively blocked, and the female end fixed iron shell is not easy to damage.
The holding convex points 242 on the side wall of the U-shaped connecting structure of the female end fixing iron shell 24 are inclined elastic arms formed by tearing and bending, and the inclined elastic arms extend obliquely from bottom to top towards the inner direction of the U-shaped connecting structure. The fixing convex points 242 on the side wall of the U-shaped connecting structure of the female end fixing iron shell 24 are formed through the inclined elastic arms, when the female end fixing iron shell 24 is assembled on the insulating retaining wall 218 on the female end fixing insulating main body 21, the female end fixing iron shell 24 is sleeved outside the upper end of the insulating retaining wall 218, then the inclined elastic arms are pressed downwards, and automatically slide into the limit grooves 2181 on the side wall of the insulating retaining wall 218, so that the female end fixing iron shell cannot be separated upwards, and the assembly is convenient.
The female end fixed insulating main body 21 is further integrally formed with an iron shell limiting wall 219 extending along the vertical direction, the iron shell limiting wall 219 and the insulating retaining wall 218 are arranged at intervals in parallel with the side wall of the limiting groove 2181, and one side surface of the side wall of the U-shaped connecting structure of the female end fixed iron shell 24, which is back to the side wall of the insulating retaining wall 218, is stopped on the surface of the iron shell limiting wall 219. The side wall of the U-shaped connecting structure of the female end fixed iron shell 24 is blocked by the iron shell limiting wall 219, so that the inclined elastic arm is prevented from being separated from the limiting groove 2181 due to deformation, and the connection stability of the female end fixed iron shell 24 and the insulating retaining wall 218 is ensured.
The lower ends of the side walls of the U-shaped connecting structure of the female end fixed iron shell 24 are also respectively provided with welding feet 243 which can be welded and fixed with the circuit board, the side walls of the U-shaped connecting structure of the female end fixed iron shell 24 are also fixedly connected through connecting pieces 244 which are perpendicular to the bottom surfaces of the side walls, and the connecting pieces 244 are coated on the surface of one side of the insulating retaining wall 218, which is back to the female end floating insulating main body. The female fixed iron shell 24 can also be welded with the circuit board through the welding leg 243, the stability of the connection of the female end connector 2 and the circuit board can be increased, the two side walls of the U-shaped connecting structure of the female fixed iron shell 24 are further connected through the connecting sheet 244, the strength of the iron shell is further increased, the two side walls of the U-shaped connecting structure of the female fixed iron shell 24 are prevented from generating elastic deformation, the insulating retaining wall 218 can be protected, the avoidance holes for avoiding the plugging lugs 222 are optimally arranged on the connecting sheet 244 of the female fixed iron shell 24, and the floating of the female floating insulating main body 22 is prevented from being interfered.
The female end fixed insulating main body 21 is further fixedly provided with a front limit wall 214, a rear limit wall, a left limit wall 215, a right limit wall and a lower limit platform 213, and the front side 224, the rear side, the left side 225, the right side and the lower side 223 of the female end floating insulating main body are respectively stopped on the surfaces of the front limit wall 214, the rear limit wall, the left limit wall 215, the right limit wall and the lower limit platform 213. The female end fixed insulating body 21 and the front limiting wall 214, the rear limiting wall, the left limiting wall 215 and the right limiting wall on the female end fixed insulating body 21 jointly form a floating insulating body accommodating cavity 212, the front limiting wall 214, the rear limiting wall, the left limiting wall 215, the right limiting wall, the lower limiting platform 213 and the U-shaped connecting structure bottom surface 241 of the female end fixed iron shell 24 on the female end fixed insulating body 21 are respectively blocked on the front side 224, the rear side 225, the left side 225, the right side, the lower side 223 and the upper side 2221 of the plugging lug 222 of the female end floating insulating body, so that the blocking limiting of the female end floating insulating body 22 in the front-rear direction, the left-right direction and the up-down direction is realized, and the female end floating insulating body 22 is prevented from being separated from the outside of the floating insulating body accommodating cavity on the female end fixed insulating body 21.
The fixed insulating main body terminal holding portion 211 is a plurality of holding grooves extending up and down and arranged on two opposite side walls of the female end fixed insulating main body 21 at intervals, the floating insulating main body terminal holding portion 221 is a holding hole extending up and down and arranged on the bottom surface of the inserting groove 227 of the female end floating insulating main body 22, a first holding clamping point 2311 and a second holding clamping point 2321 are respectively arranged on the side walls of the female end signal terminal holding section 231 and the female end signal terminal floating holding section 232 of the female end signal terminal 23, the female end signal terminal holding section 231 and the female end signal terminal floating section 232 of the female end signal terminal 23 are respectively inserted into the holding groove and the holding hole, the first holding clamping point 2311 and the second holding clamping point 2321 are respectively embedded on the inner side walls of the holding groove and the holding hole, and the floating section 233 of the female end signal terminal 23 is accommodated in a gap between the lower side wall of the female end floating insulating main body 22 and the upper side surface of the female end fixed insulating main body 21. The floating section 233 of the female signal terminal 23 is just hidden in the gap between the upper side of the female fixed insulating body 21 and the lower side of the female floating insulating body 22, the floating end fixing section on the floating section extends into the fixing hole on the bottom surface of the inserting groove 227 of the female floating insulating body 22, and is clamped and fixed with the side wall of the fixing hole through the second fixing clamping point 2321 on the floating section, meanwhile, the female signal terminal contact section 235 of the female signal terminal 23 continues to extend upwards into the inserting groove 227, the female signal terminal fixing end fixing section 231 of the female signal terminal 23 extends out of the female fixed insulating body 21 and extends downwards towards the circuit board direction, and the female signal terminal fixing end fixing section 231 is inserted into the fixing grooves on the two opposite side walls of the female fixed insulating body 21 and is clamped and fixed with the side wall of the fixing groove through the first fixing clamping point 2311 on the floating section.
The female end floating insulation main body 22 is provided with a contact limit wall 2271 in the insertion groove 227, the lower end of the contact limit wall 2271 is integrally formed on the bottom surface of the insertion groove 227, the contact limit wall 2271 extends along the up-down direction, the side wall of the contact limit wall 2271 is provided with a plurality of contact section limit grooves 2181 extending along the up-down direction, and the female end signal terminal contact sections 235 of the female end signal terminals 23 are respectively and closely inserted in the contact section limit grooves 2181 in a one-to-one correspondence. The contact limiting grooves 2181 are symmetrically distributed on the two side walls of the contact limiting retaining wall, the female end signal terminal contact sections 235 of the two groups of female end signal terminals 23 are respectively inserted into the contact limiting grooves 2181 on the two sides of the contact limiting wall 2271, the female end signal terminals 23 protrude out of the contact limiting grooves 2181, and when the male end connector 1 is inserted into the inserting grooves 227 of the female end connector 2, the contact limiting wall 2271 and the female end signal terminals 23 on the two sides of the contact limiting wall 2271 are simultaneously inserted into the male end connector 1, and clamp and conduct the male end signal terminals 12 forming the clamping piece structure.
The lower side 223 of the female floating insulating body 22 forms a step structure with low middle height and high peripheral height in the extending direction of the middle section of the female signal terminal 23, the upper side of the female fixed insulating body 21 also forms a step structure with low middle height and high peripheral height in the extending direction of the middle section of the female signal terminal 23, the distance between the middle of the lower side 223 of the female floating insulating body 22 and the middle of the upper side of the female fixed insulating body 21 is smaller than the distance between the peripheral section of the lower side 223 of the female floating insulating body 22 and the periphery of the upper side of the female fixed insulating body 21, one end of the floating section 233 of the female signal terminal 23 and the fixed end holding section 231 of the female signal terminal jointly form a U-shaped bending structure with a downward opening, and the other end of the floating section 233 of the female signal terminal 23 and the floating end holding section 232 of the female signal terminal jointly form a U-shaped bending structure with an upward opening. The lower side 223 of the female-end floating insulating body 22 is of a structure with a high middle and a low periphery, particularly, the lower side is low along the width direction of the female-end connector 2, so that on one hand, the floating section 233 of the female-end signal terminal 23 is convenient to accommodate, and on the other hand, the female-end floating insulating body 22 connected with the female end can elastically swing on the female-end fixed insulating body 21 by a small angle, so that the inclined plugging requirement of the male-end connector 1 is met.