Floating connector

Abstract

The utility model provides a floating connector, and belongs to the technical field of electric connection devices. The floating connector comprises a fixed insulator, a floating insulator and a contact piece, the fixed insulator is provided with a fixing groove for fixing a fixed part of the contact piece, and the floating insulator is provided with a retaining hole for a contact part of the contact piece to pass through and a retaining groove communicated with the retaining hole and used for retaining the contact part. The groove bottoms of the fixing groove and the retaining groove are respectively provided with an impedance balancing groove which is arranged opposite to one side face of the contact piece in the thickness direction of the plate, the opposite hole walls of the retaining hole are provided with impedance adjusting grooves which are arranged opposite to the two side faces of the contact piece in the thickness direction of the plate, and one impedance adjusting groove is communicated with the impedance balancing groove in the retaining groove. According to the utility model, the impedance of the matching parts of the contact element and the fixed insulator and the floating insulator is improved, so that the impedance consistency on a signal transmission path is improved, and the signal transmission performance of the connector can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of floating connectors, belong to electric connection device technical field. BACKGROUND

[0002] Floating connector can solve the failure risk of insulation rupture, welding site crack caused by accumulated positioning error under product stress of traditional fixed connector, while it can improve layout, wiring design freedom, reduce the stress of solder joint, prevent welding crack, so it is widely used in multiple fields.

[0003] For example, the movable connector disclosed in Chinese patent CN109802251B includes a fixed shell, a movable shell and a terminal (i.e., a contact) mounted on the fixed shell and the movable shell. The terminal has two rows and is symmetrically arranged. The terminal includes two U-shaped bending parts and three L-shaped bending parts. One end of the terminal is a substrate fixing part for welding with the substrate, and the other end is a contact part for contacting and conducting with the terminal of the mating connector. The fixed shell includes front, rear, left and right walls. The inner sides of the front and rear walls are provided with a plurality of slot-shaped terminal fixing parts (i.e., fixing slots). The terminal is provided with a protrusion that fits with the fixing slot. The movable shell has a peripheral wall surrounding the front, rear, left and right walls, a bottom wall at the lower end of the peripheral wall, and a central wall protruding from the center of the bottom wall and extending upward. The peripheral wall and the bottom wall form a fitting chamber for inserting the mating connector. The opposite sides of the central wall are provided with terminal mounting slots for holding the contact part of the terminal. The bottom wall is provided with through holes for the contact part of the terminal to pass through. The through holes and the terminal mounting slots are in one-to-one correspondence and communication. The terminal is provided with a protrusion that fits with the through hole. In addition, the bottom wall is provided with two terminal retaining walls extending downward. The terminal retaining walls are provided with press-in grooves for pressing the terminal into place. The terminal is provided with a protrusion that fits with the press-in groove.

[0004] The shape of the existing contact is not limited to the form disclosed in the above-mentioned patent. For example, the floating connector disclosed in Chinese patent application CN114976712A includes a fixed side shell, a movable side shell and a contact (i.e., a contact) mounted on the fixed side shell and the movable side shell. The structure of the contact is slightly different from that of patent CN109802251B, but the installation and fixation methods are similar. The fixed side shell is provided with a plurality of contact retaining grooves (i.e., fixing slots). The main body wall of the movable side shell is provided with a plurality of through contact retaining holes. The protruding wall connected to the main body wall is also provided with a plurality of contact retaining grooves. The contact is provided with a protrusion that fits with the contact retaining grooves and the contact retaining holes.

[0005] However, no matter which structure of the contact piece, one side of the contact piece plate thickness direction is in contact with the groove bottom wall of the holding groove, and the two sides of the contact piece plate thickness direction are also in contact with the opposite hole wall of the holding hole, and the fixed side shell and the movable side shell are both insulators (so it can also be called fixed insulator and floating insulator), the dielectric constant of the insulator is larger than that of air, and the larger the dielectric constant is, the smaller the impedance is, so that the impedance of the contact piece at the positions of the holding groove and the holding hole and the impedance exposed to air are different, which causes poor impedance consistency on the signal transmission path and affects the signal transmission performance of the connector. Utility model content

[0006] The utility model discloses a floating connector to solve the problem that the contact piece and fixed insulator and floating insulator cooperate with the part of the fixed insulator and floating insulator and cause the local impedance to be small, the impedance consistency of the whole connector to be poor and the signal transmission performance of the connector to be affected.

[0007] To realize the above-mentioned purpose, the floating connector in the utility model adopts the following technical scheme:

[0008] A floating connector, comprising a fixed insulator, a floating insulator and a contact piece installed on the fixed insulator and the floating insulator, the fixed insulator is provided with a fixed groove for fixing the fixed part of the contact piece, the floating insulator is provided with a holding hole for the contact part of the contact piece to pass through and a holding groove in communication with the holding hole and holding the contact part, the groove bottom positions of the fixed groove and the holding groove are respectively provided with impedance balance grooves arranged opposite to one side of the plate thickness direction of the contact piece, and the opposite hole walls of the holding hole are provided with impedance adjustment grooves arranged opposite to the two sides of the plate thickness direction of the contact piece, and one of the impedance adjustment grooves is in communication with the impedance balance groove in the holding groove.

[0009] The beneficial effects of the above-mentioned technical scheme are that the utility model belongs to an improved invention, mainly adding impedance balance grooves at the groove bottom positions of the fixed groove and the holding groove, and adding impedance adjustment grooves on the opposite two hole walls of the holding hole, one of the impedance adjustment grooves is in communication with the impedance balance groove in the holding groove, the impedance balance groove is arranged opposite to one side of the plate thickness direction of the contact piece, the two impedance adjustment grooves are respectively arranged opposite to the two sides of the plate thickness direction of the contact piece, which avoids the side of the plate thickness direction of the contact piece from being completely in contact with the fixed insulator and the floating insulator, the impedance balance groove and the impedance adjustment groove form an air cavity, and the dielectric constant of air is smaller than that of the insulator, so the smaller the dielectric constant is, the larger the impedance is, therefore the impedance of the contact piece at the cooperating position with the fixed insulator and the floating insulator is improved, the impedance consistency on the signal transmission path is improved, and the signal transmission performance of the connector can be improved.

[0010] Further, the fixed slot includes a fixed wide slot and a fixed narrow slot with a width smaller than the fixed wide slot, the fixed narrow slot and the impedance balance slot in the fixed slot are respectively located at two sides of the fixed wide slot, and the fixed part of the contact piece is in interference fit with the fixed wide slot.

[0011] Further, the width of the fixed narrow slot is greater than the width of the impedance balance slot in the fixed slot.

[0012] Further, the contact piece is provided with two rows of contact pieces arranged symmetrically, and the corresponding retaining holes are also provided with two rows of retaining holes, the depth of the impedance adjustment slots close to each other of the two rows of retaining holes is greater than the depth of the impedance adjustment slots far from each other.

[0013] Further, the width of the impedance adjustment slots close to each other of the two rows of retaining holes is greater than the width of the impedance adjustment slots far from each other.

[0014] Further, the contact piece is provided with two rows of contact pieces arranged symmetrically, and the corresponding retaining holes are also provided with two rows of retaining holes, the width of the impedance adjustment slots close to each other of the two rows of retaining holes is greater than the width of the impedance adjustment slots far from each other.

[0015] Further, the fixed insulator includes four side walls of front, rear, left and right, the front side wall and the rear side wall respectively include an upper thin wall section and a lower thick wall section, the outer surfaces of the thin wall section and the thick wall section are coplanar, the fixed slot is arranged on the inner surface of the thick wall section, and the contact piece and the inner surface of the thin wall section have a floating space for the corresponding part of the contact piece to deform.

[0016] Further, the floating insulator includes a slot for inserting the adapter connector, the slot includes four slot walls of front, rear, left and right, at least one group of two adjacent slot walls are connected vertically, and at least one group of two adjacent slot walls are connected through a transition wall, and the included angle between the transition wall and the adjacent two side slot walls is an obtuse angle.

[0017] Further, a triangular mark is arranged on the outer surface of the fixed insulator.

[0018] Further, two positioning columns are arranged on the bottom surface of the fixed insulator, and the diameters of the two positioning columns are not equal.

[0019] Further, the opposite sides of the floating insulator are respectively provided with a limiting table for limiting the downward movement of the floating insulator to the limit position by stopping cooperation with the top surface of the fixed insulator.

[0020] Further, a plurality of process grooves are arranged on the outer surface of the floating insulator at intervals.

[0021] Further, the contact part of the contact piece includes a variable diameter section.

[0022] Further, the fixing part of the contact matched with the fixed insulator is a first fixing part, one end of the first fixing part is connected with a horizontally extending pin through a bending part, the other end of the first fixing part is connected with a deformed part through an S-shaped bending part, the deformed part comprises a U-shaped structure with an opening facing downward, the contact further comprises a second fixing part matched with a retaining hole on the floating insulator in an interference fit, the second fixing part is connected with the contact part, the deformed part is connected with the second fixing part through a horizontally extending pressing part, the deformed part, the pressing part and the second fixing part form a U-shaped structure with an opening facing upward, and the bottom surface of the pressing part and the pin is a stress surface subjected to external force when the contact is installed on the fixed insulator and the floating insulator. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of one angle of the embodiment of the floating connector of the utility model;

[0024] Figure 2 It is a sectional view of the embodiment of the floating connector of the utility model;

[0025] Figure 3 It is a perspective view of another angle of the embodiment of the floating connector of the utility model;

[0026] Figure 4 It is a bottom view of the embodiment of the floating connector of the utility model;

[0027] Figure 5 It is a side view of the embodiment of the floating connector of the utility model;

[0028] Figure 6 It is a perspective view of one angle of the fixed insulator in the embodiment of the floating connector of the utility model;

[0029] Figure 7 It is a perspective view of another angle of the fixed insulator in the embodiment of the floating connector of the utility model;

[0030] Figure 8 It is a perspective view of one angle of the floating insulator in the embodiment of the floating connector of the utility model;

[0031] Figure 9 It is a perspective view of another angle of the floating insulator in the embodiment of the floating connector of the utility model;

[0032] Figure 10 It is an installation schematic view of the contact in the embodiment of the floating connector of the utility model;

[0033] Figure 11 It is a perspective view of the contact in the embodiment of the floating connector of the utility model.

[0034] In the figure: 1, fixed insulator; 11, front side wall; 12, rear side wall; 13, left side wall; 14, right side wall; 15, signal fixed slot; 151, fixed wide slot; 152, fixed narrow slot; 16, first impedance balance slot; 17, mounting slot; 18, first positioning column; 19, second positioning column; 110, power supply fixed slot; 111, front thin wall section; 112, front thick wall section; 121, rear thin wall section; 122, rear thick wall section; 123, mark; 2, floating insulator; 21, front slot wall; 22, rear slot wall; 23, left slot wall; 24, right slot wall; 25, bottom slot wall; 26, bottom protruding column; 261, signal retaining hole; 262, second impedance adjustment slot; 263, first impedance adjustment slot; 264, power supply retaining hole; 27, center protruding column; 271, signal retaining slot; 272, second impedance balance slot; 273, power supply retaining slot; 28, transition wall; 29, process slot; 210, limiting table; 3, power supply contact; 4, signal contact; 41, first fixed part; 411, first protrusion; 42, second fixed part; 421, second protrusion; 43, first L-shaped bending part; 44, pin; 45, S-shaped bending part; 46, deformation part; 461, U-shaped bending part; 47, second L-shaped bending part; 48, press-fitting part; 49, third L-shaped bending part; 410, contact part; 4101, variable diameter section; 5, fixed sheet. DETAILED DESCRIPTION

[0035] In view of the technical problems existing in the prior art, the basic idea of the utility model is to set impedance adjustment slots or impedance balance slots in the holes or slots matched with the contacts on the fixed insulator and the floating insulator, the impedance adjustment slots or the impedance balance slots are arranged opposite to the side surface in the thickness direction of the contact plate, avoiding the side surface in the thickness direction of the contact plate from being in contact with the insulator, forming an air cavity, using the characteristic that the dielectric constant of air is smaller than that of the insulator, improving the impedance at the position, thereby improving the impedance consistency on the signal transmission path.

[0036] The features and performances of the utility model are further described in detail in combination with the embodiments.

[0037] Embodiment 1 of the floating connector in the utility model:

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the floating connector comprises a fixed insulator 1, a floating insulator 2 and a contact piece mounted on the fixed insulator 1 and the floating insulator 2, the contact piece comprising a power contact piece 3 and a signal contact piece 4, the signal contact piece 4 being provided in two rows, the two rows of signal contact pieces 4 being symmetrically arranged front and back, each row comprising a plurality of signal contact pieces 4 arranged in the left-right direction, and one power contact piece 3 being arranged on the left and right sides of each row of signal contact pieces 4, and the power contact pieces 3 on the front and back sides being symmetrically arranged.

[0039] The power contact piece 3 and the signal contact piece 4 are similar in structure, and the signal contact piece 4 is taken as an example, as shown in the figure, the signal contact piece 4 comprises a first fixed part 41 and a second fixed part 42, the first fixed part 41 comprises a first protrusion 411 in interference fit with the fixed insulator 1, and the second fixed part 42 comprises a second protrusion 421 in interference fit with the floating insulator 2. Figure 11 One end of the first fixed part 41 is connected with a horizontally extending pin 44 through a first L-shaped bending part 43, the pin 44 being used for welding and fixing with a printed board. The other end of the first fixed part 41 is connected with a deformation part 46 through an S-shaped bending part 45, the deformation part 46 comprising a U-shaped bending part 461 with an opening facing downward. The deformation part 46 is connected with a horizontally extending press-fitting part 48 through a second L-shaped bending part 47, the press-fitting part 48 being connected with the second fixed part 42 through a third L-shaped bending part 49, and a U-shaped structure with an opening facing upward is formed between the deformation part 46, the press-fitting part 48 and the second fixed part 42. The signal contact piece 4 further comprises a contact part 410 for contact and conduction with the contact piece of an adapter connector, the contact part 410 being connected with the second fixed part 42 and having a consistent extension direction, and the contact part 410 comprising a variable-diameter section 4101, which can balance the impedance consistency of each part and improve the high-speed performance of the product. In addition, the section between the S-shaped bending part 45 and the deformation part 46 and the section between the press-fitting part 48 and the third L-shaped bending part 49 are also designed to have variable diameters, further ensuring the impedance consistency of each part.

[0040] The fixed insulator 1 is provided with a fixed groove for fixing the fixed part of the contact piece, and since the contact piece comprises the power contact piece 3 and the signal contact piece 4, as shown in the figures, Figure 6 and Figure 7 the fixed groove comprises a power fixed groove 110 for fixing the power contact piece 3 and a signal fixed groove 15 for fixing the signal contact piece 4. The floating insulator 2 is provided with a retaining hole for the contact part of the contact piece to pass through and a retaining groove in communication with the retaining hole and retaining the contact part, and similarly, since the contact piece comprises the power contact piece 3 and the signal contact piece 4, as shown in the figures, Figure 8 and Figure 9As shown, the holding holes include power supply holding holes 264 for the contact portions of the power supply contacts 3 to pass through and signal holding holes 261 for the contact portions of the signal contacts 4 to pass through, and the holding grooves include power supply holding grooves 273 for holding the contact portions of the power supply contacts 3 and signal holding grooves 271 for holding the contact portions of the signal contacts 4.

[0041] The fixed insulator 1 provides support, protection and function for the product. Specifically, in combination with Figures 1 to 7 As shown, the fixed insulator 1 includes a front side wall 11, a rear side wall 12, a left side wall 13 and a right side wall 14, the front side wall 11 includes an upper front thin wall section 111 and a lower front thick wall section 112, the outer surfaces of the front thin wall section 111 and the front thick wall section 112 are coplanar, and a stepped surface facing upward is formed between the inner surfaces. The structure of the rear side wall 12 is symmetrical to that of the front side wall 11, the rear side wall 12 includes an upper rear thin wall section 121 and a lower rear thick wall section 122, the outer surfaces of the rear thin wall section 121 and the rear thick wall section 122 are coplanar, and a stepped surface facing upward is formed between the inner surfaces.

[0042] The inner surfaces of the front thick wall section 112 and the rear thick wall section 122 are respectively provided with the above-mentioned signal fixing grooves 15 and power supply fixing grooves 110, the signal fixing grooves 15 are arranged in multiple in the left-right direction, and the power supply fixing grooves 110 are respectively located on the left and right sides of a row of signal fixing grooves 15. The signal fixing grooves 15 and the power supply fixing grooves 110 are similar in structure, taken the signal fixing groove 15 as an example, in combination with Figure 4 and Figure 5 As shown, the groove bottom of the signal fixing groove 15 is provided with a first impedance balance groove 16 arranged opposite to one side surface of the signal contact 4 in the plate thickness direction, the arrangement of the first impedance balance groove 16 avoids the side surface of the signal contact 4 in the plate thickness direction from being in complete contact with the fixed insulator 1, the first impedance balance groove 16 forms an air cavity, the dielectric constant of air is smaller than that of the insulator, the smaller the dielectric constant is, the greater the impedance is, thus the impedance at this position is improved, so as to balance the consistency of the impedance on the signal transmission path.

[0043] Further, the signal fixing groove 15 includes a fixed wide groove 151 and a fixed narrow groove 152 with a smaller width than the fixed wide groove 151, the fixed narrow groove 152 and the first impedance balance groove 16 are respectively located on the two sides of the fixed wide groove 151, the first fixed portion 41 of the signal contact 4 is in interference fit with the fixed wide groove 151, that is, the first protrusion 411 on the first fixed portion 41 is in interference contact with the left and right groove walls of the fixed wide groove 151. In this way, both side surfaces of the first fixed portion 41 in the plate thickness direction correspond to air cavities, the impedance at this position is improved, and at the same time, the first fixed portion 41 is limited in the fixed wide groove 151, and a stop step is formed between the fixed wide groove 151 and the first impedance balance groove 16 and between the fixed wide groove 151 and the fixed narrow groove 152, so as to avoid the signal contact 4 from moving in the plate thickness direction.

[0044] Further, the width of the fixed narrow slot 152 is greater than the width of the first impedance balance slot 16, which ensures the consistency of impedance and facilitates heat dissipation of the contact.

[0045] The signal contact 4 is not in contact with the side wall of the fixed insulator 1 except for the two sides of the first fixed part 41, the S-shaped bending part 45 and the deformation part 46, especially the deformation part 46 of the front row of signal contacts 4 and the deformation part 46 of the rear row of signal contacts 4 have floating space for deformation between the front thin wall section 111 and the rear thin wall section 121, which avoids interference between the deformation part 46 and the side wall of the fixed insulator 1 during deformation.

[0046] In addition, as shown in Figure 6 and Figure 7 , a reverse triangular mark 123 is arranged on the outer surface of the rear side wall 12 of the fixed insulator 1, which is used to indicate the installation and fixing direction of the fixed insulator 1 to the printed board, and the mark 123 corresponds to the position of the first signal contact 4 at the end, which plays an indicating role. In addition, two positioning columns are arranged on the bottom surface of the fixed insulator 1, which are the first positioning column 18 and the second positioning column 19, respectively. The two positioning columns are arranged at opposite positions and have different diameters, which can assist the installation and positioning of the floating connector and ensure correct installation. In addition, mounting grooves 17 are arranged on the left side wall 13 and the right side wall 14, respectively, for mounting the fixing sheet 5 (as shown in Figure 3 and Figure 4 ), which can be welded and fixed to the printed board to ensure the installation and fixing effect of the floating connector.

[0047] In addition to providing support, protection and guidance for the product, the floating insulator 2 also realizes the floating function of the product. As shown in Figure 2 , Figure 5 , Figure 8 and Figure 9 , the floating insulator 2 includes a slot for inserting the mating connector, the slot includes a front slot wall 21, a rear slot wall 22, a left slot wall 23, a right slot wall 24 and a bottom slot wall 25, the bottom slot wall 25 extends downward to form a bottom protruding column 26, and the bottom slot wall 25 extends upward to form a center protruding column 27, the center protruding column 27 has a gap between the front, rear, left and right four slot walls for inserting the mating connector. Among them, the rear slot wall 22 and the right slot wall 24 are vertically connected, the left slot wall 23 and the rear slot wall 22 are connected through a transition wall 28, and the left slot wall 23 and the front slot wall 21 are connected through a transition wall 28. The included angle between the transition wall 28 and the rear slot wall 22 and the included angle between the transition wall 28 and the front slot wall 21 are obtuse angles. In this way, the slot on the floating insulator 2 is a special-shaped slot, which must correspond to the shape of the mating connector when the mating connector is inserted, thereby realizing the anti-misplug function.

[0048] As shown in Figure 4 , the bottom protruding column 26 is provided with the signal holding hole 261 and the power holding hole 264, the signal holding hole 261 is provided with two rows, and each row of the signal holding hole 261 is provided with a power holding hole 264 on the left side and the right side. As shown in Figure 5 , the second fixed part 42 of the signal contact 4 is in interference fit with the signal holding hole 261, that is, the second protrusion 421 on the second fixed part 42 is in interference contact with the left and right hole walls of the signal holding hole 261. The opposite hole walls of the signal holding hole 261 (i.e. the front and rear hole walls) are provided with impedance adjustment grooves arranged opposite to the two sides in the thickness direction of the signal contact 4, which are the first impedance adjustment groove 263 and the second impedance adjustment groove 262, respectively, avoiding the two sides in the thickness direction of the signal contact 4 from being in full contact with the floating insulator 2, and the two impedance adjustment grooves form air cavities, the dielectric constant of air is smaller than that of the insulator, and the smaller the dielectric constant is, the greater the impedance is, so the impedance at this position is improved, thereby balancing the consistency of the impedance on the signal transmission path.

[0049] At the same time, the signal holding hole 261 and the first impedance adjustment groove 263, and the signal holding hole 261 and the second impedance adjustment groove 262 are both formed with a stop step, thereby limiting the second fixed part 42 of the signal contact 4 in the signal holding hole 261, avoiding its movement in the thickness direction.

[0050] Further, the depths of the impedance adjustment grooves close to each other of the two rows of signal holding holes 261 are greater than the depths of the impedance adjustment grooves far away from each other, that is, the depth of the second impedance adjustment groove 262 is greater than the depth of the first impedance adjustment groove 263. At the same time, the widths of the impedance adjustment grooves close to each other of the two rows of signal holding holes 261 are greater than the widths of the impedance adjustment grooves far away from each other, that is, the width of the second impedance adjustment groove 262 is greater than the width of the first impedance adjustment groove 263, so that the air cavities between the two adjacent rows of signal contacts 4 are larger, and the air with lower dielectric constant is used to enhance the electrical isolation between the two rows of signal contacts 4, thereby reducing the interference between each other.

[0051] As shown in Figure 5As shown, the front and rear outer sides of the center convex column 27 are provided with the signal retaining groove 271 and the power retaining groove 273, so that two rows of signal retaining grooves 271 are provided, and one power retaining groove 273 is provided on the left and right sides of each row of signal retaining grooves 271. Each signal retaining groove 271 in each row is in one-to-one correspondence with the signal retaining hole 261, and the contact part 410 of the signal contact 4 is located in the corresponding signal retaining groove 271. The bottom of the signal retaining groove 271 is provided with a second impedance balance groove 272 arranged opposite to one side of the plate thickness direction of the contact 4, the second impedance balance groove 272 is in communication with the second impedance adjustment groove 262, and the second impedance balance groove 272 is a groove with equal width and depth. The arrangement of the second impedance balance groove 272 avoids the complete contact of the side of the plate thickness direction of the contact part 410 with the floating insulator 2, and the second impedance balance groove 272 forms an air cavity. The dielectric constant of air is smaller than that of the insulator, and the smaller the dielectric constant is, the greater the impedance is. Therefore, the impedance at this position is increased, so that the consistency of the impedance on the signal transmission path can be balanced.

[0052] In use, the floating insulator 2 can float up and down, left and right, and forward and backward relative to the fixed insulator 1 under the action of the contact, in order to avoid excessive movement of the floating insulator 2 and cause yield deformation of the contact, as shown in Figure 9 As shown, the opposite sides (i.e. the left and right sides) of the floating insulator 2 are respectively provided with a limiting table 210 for limiting the position of the floating insulator 2 to limit the downward movement of the floating insulator 2. In addition, the front and rear side walls of the fixed insulator 1 can limit the movement limit of the floating insulator 2 in the forward and backward directions, and the left and right side walls of the fixed insulator 1 can limit the movement limit of the floating insulator 2 in the left and right directions, so as to limit the movement limit of the floating insulator 2 in the left and right directions, the forward and backward directions, and the downward direction.

[0053] In addition, as shown in Figure 8 and Figure 9 A plurality of process grooves 29 are arranged on the outer surface of the floating insulator 2 at intervals, so as to ensure the uniform wall thickness of the floating insulator 2 and facilitate the injection molding quality of the floating insulator 2.

[0054] In summary, the power contact 3 and the signal contact 4 in the utility model both adopt a double-U-shaped curved arm spring structure, which can first realize the fixation with the floating insulator 2 and the fixed insulator 1, and secondly greatly increase the elasticity of the contact, so as to ensure that the contact will not yield or break in elastic displacement, thereby realizing the floating function of the connector. The floating connector of the utility model is suitable for printed boards, and through the cooperation of the fixed insulator and the floating insulator, the floating of the two printed boards in the X, Y and Z planes can be realized.

[0055] Meanwhile, the signal contact 4 in the utility model is mostly exposed in the air, the matching part of the signal fixing groove 15 of the fixed insulator 1 is provided with the first impedance balance groove 16, the matching part of the signal retaining hole 261 of the floating insulator 2 is provided with the first impedance adjustment groove 263 and the second impedance adjustment groove 262, and the matching part of the signal retaining groove 271 of the floating insulator 2 is provided with the second impedance balance groove 272, so that the area of the signal contact 4 directly adhered to the insulator is reduced, the area of the signal contact 4 exposed in the air is increased, the impedance consistency of the connector as a whole is improved, and the signal transmission performance of the product can be improved.

[0056] In addition, the contact is designed with a press-fitting platform, for example, as shown in Figure 10 When the signal contact 4 is installed on the fixed insulator 1 and the floating insulator 2, the press-fitting part 48 and the bottom surface of the pin 44 constitute a stress surface subjected to external force, so that the signal contact 4 is conveniently assembled into the signal fixing groove 15 of the fixed insulator 1 and the signal retaining hole 261 and the signal retaining groove 271 of the floating insulator 2, and the product assembly efficiency is improved.

[0057] In other embodiments of the floating connector: the shape of the contact can also be other forms, for example, the terminal disclosed in CN109802251B, which is different from embodiment 1 in that it is not provided with an S-shaped bending part, and additionally has a relay part, which serves as a press-fitting part. Of course, in other embodiments, the shape of the contact can also be the contact disclosed in CN114976712A, and the corresponding installation method also changes.

[0058] In other embodiments of the floating connector: the contact part of the contact can be an equal-width structure and no longer include a variable-diameter section.

[0059] In other embodiments of the floating connector: when the wall thickness of the floating insulator meets the premise of injection molding, the process groove can not be provided on the outer surface.

[0060] In other embodiments of the floating connector: the limiting table of the floating insulator can also be provided on the front and rear sides, and of course, in other embodiments, the limiting table can also not be provided, in which case the force of the plug needs to be controlled to avoid excessive deformation of the contact.

[0061] In other embodiments of the floating connector: the diameters of the two positioning columns provided on the bottom surface of the fixed insulator can be equal, and of course, in other embodiments, only one positioning column can be provided, which is a square column, and the corresponding positioning hole is a square hole. Of course, in other embodiments, the positioning column can also not be provided, and the fixed insulator is directly installed.

[0062] In other embodiments of the floating connector: the outer surface of the fixed insulator can not be provided with the inverted triangular mark, and the relevant structure is identified by the human eye.

[0063] In other embodiments of the floating connector: for the floating insulator, only two adjacent slot walls can be connected by the transition wall, such as only the front slot wall and the left slot wall, or only the front slot wall and the right slot wall, or only the rear slot wall and the left slot wall, or only the rear slot wall and the right slot wall, and the remaining adjacent slot walls are vertically connected. In other embodiments, two adjacent slot walls can be vertically connected, and the remaining two adjacent slot walls are connected by the transition wall, but unlike embodiment 1, the rear slot wall and the left slot wall are vertically connected, and the rear slot wall and the right slot wall are connected by the transition wall. In other embodiments, three adjacent slot walls can also be connected by the transition wall, such as the front slot wall and the left slot wall, the front slot wall and the right slot wall, and the rear slot wall and the left slot wall, and the rear slot wall and the right slot wall are vertically connected.

[0064] In other embodiments of the floating connector: the front and rear side walls of the fixed insulator can be equal in thickness, and the first fixed part and the deformation part of the contact are connected by the bending part, so that the deformation part is away from the inner surface of the front or rear side wall, and the deformation part still does not interfere with the side wall during the deformation process.

[0065] In other embodiments of the floating connector: the depth of the impedance adjustment slot with the two rows of retaining holes close to each other can be equal to the depth of the impedance adjustment slot with the two rows of retaining holes far away from each other, but the width of the impedance adjustment slot with the two rows of retaining holes close to each other is greater than the width of the impedance adjustment slot with the two rows of retaining holes far away from each other.

[0066] In other embodiments of the floating connector: the width of the impedance adjustment slot with the two rows of retaining holes close to each other can be equal to the width of the impedance adjustment slot with the two rows of retaining holes far away from each other, but the depth of the impedance adjustment slot with the two rows of retaining holes close to each other is greater than the depth of the impedance adjustment slot with the two rows of retaining holes far away from each other.

[0067] In other embodiments of the floating connector: the depth of the impedance adjustment slot with the two rows of retaining holes close to each other can be equal to the depth of the impedance adjustment slot with the two rows of retaining holes far away from each other, and the width of the impedance adjustment slot with the two rows of retaining holes close to each other is equal to the width of the impedance adjustment slot with the two rows of retaining holes far away from each other.

[0068] In other embodiments of the floating connector: the width of the fixed narrow slot can be equal to the width of the impedance balance slot in the fixed slot.

[0069] In other embodiments of the floating connector: the slot width of the fixed slot can be consistent, and the contact is limited in the fixed slot without movement by the interference assembly effect between the contact and the fixed slot.

[0070] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. The patent protection scope of the present application is defined by the claims, and any equivalent structural changes made according to the content of the specification and drawings of the present application should also be included in the protection scope of the present application.

Claims

1. A floating connector comprising a fixed insulator (1), a floating insulator (2), and a contact mounted on the fixed insulator (1) and the floating insulator (2), the fixed insulator (1) being provided with a fixed groove for fixing a fixed portion of the contact, the floating insulator (2) being provided with a holding hole through which a contact portion (410) of the contact passes and a holding groove which communicates with the holding hole and holds the contact portion (410), characterized in that, The bottom of the fixed slot and the holding slot is provided with an impedance balance slot arranged opposite to one side of the contact plate in the thickness direction, and the opposite hole wall of the holding hole is provided with two impedance adjustment slots arranged opposite to two sides of the contact plate in the thickness direction, one of which is in communication with the impedance balance slot in the holding slot.

2. The floating connector of claim 1, wherein, The fixed slot includes a fixed wide slot (151) and a fixed narrow slot (152) with a smaller width than the fixed wide slot (151), and the fixed narrow slot (152) and the impedance balance slot in the fixed slot are located on both sides of the fixed wide slot (151), and the fixed part of the contact is in interference fit with the fixed wide slot (151).

3. The floating connector of claim 2, wherein, The width of the fixed narrow slot (152) is greater than the width of the impedance balance slot in the fixed slot.

4. The floating connector of any one of claims 1 to 3, wherein the contact Two rows of contacts are symmetrically arranged, and the corresponding holding holes are also provided with two rows, and the depths of the impedance adjustment slots of the two rows of holding holes close to each other are greater than the depths of the impedance adjustment slots far away from each other.

5. The floating connector of claim 4, wherein, The widths of the impedance adjustment slots of the two rows of holding holes close to each other are greater than the widths of the impedance adjustment slots far away from each other.

6. The floating connector of any one of claims 1 to 3, wherein the contact Two rows of contacts are symmetrically arranged, and the corresponding holding holes are also provided with two rows, and the widths of the impedance adjustment slots of the two rows of holding holes close to each other are greater than the widths of the impedance adjustment slots far away from each other.

7. The floating connector of any one of claims 1 to 3, wherein The fixed insulator (1) includes front, rear, left and right four side walls, the front side wall (11) and the rear side wall (12) respectively include an upper thin wall section and a lower thick wall section, the outer surfaces of the thin wall section and the thick wall section are coplanar, and the fixed slot is arranged on the inner surface of the thick wall section, and the contact and the inner surface of the thin wall section have a floating space for the corresponding part of the contact to deform.

8. The floating connector of any one of claims 1 to 3, wherein, The floating insulator (2) includes an insertion slot for inserting an adapter connector, the insertion slot includes front, rear, left and right four slot walls, at least one group of two adjacent slot walls are vertically connected, and at least one group of two adjacent slot walls are connected through a transition wall (28), and the included angle between the transition wall (28) and the adjacent two side slot walls is an obtuse angle.

9. The floating connector of any one of claims 1 to 3, wherein, The outer surface of the fixed insulator (1) is provided with a reverse triangular mark (123).

10. The floating connector of any one of claims 1 to 3, wherein The bottom surface of the fixed insulator (1) is provided with two positioning columns, and the diameters of the two positioning columns are not equal.

11. The floating connector of any one of claims 1 to 3, wherein The opposite sides of the floating insulator (2) are respectively provided with limiting tables (210) for limiting the movement of the floating insulator (2) downward to limit the position of the floating insulator (2).

12. The floating connector of any one of claims 1 to 3, wherein The outer surface of the floating insulator (2) is provided with a plurality of process grooves (29) at intervals.

13. The floating connector of any one of claims 1 to 3, wherein, The contact part (410) of the contact includes a variable diameter section (4101).

14. The floating connector of any one of claims 1 to 3, wherein The fixed part of the contact matched with the fixed insulator (1) is a first fixed part (41), one end of the first fixed part (41) is connected with a horizontally extending pin (44) through a bending part, the other end of the first fixed part (41) is connected with a deformation part (46) through an S-shaped bending part (45), the deformation part (46) comprises a U-shaped structure with an opening facing downward, the contact further comprises a second fixed part (42) in interference fit with a retaining hole on the floating insulator (2), the second fixed part (42) is connected with the contact part (410), the deformation part (46) is connected with the second fixed part (42) through a horizontally extending press-fitting part (48), a U-shaped structure with an opening facing upward is formed among the deformation part (46), the press-fitting part (48) and the second fixed part (42), the bottom surface of the press-fitting part (48) and the pin (44) is a stress surface for being acted by external force when the contact is installed on the fixed insulator (1) and the floating insulator (2).

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