First electrical connector, second electrical connector and electrical connector combination

Abstract

The application provides a first electric connector, a second electric connector and an electric connector combination. The first electric connector comprises a base, an inner wall of which forms a receiving cavity; a floating seat which is floatingly installed in the receiving cavity and forms a floating gap with the inner wall of the receiving cavity; the floating seat comprises a tongue plate which protrudes upward and an outer wall which surrounds the outer periphery of the tongue plate; two sides of the outer wall are respectively provided with a protruding part which protrudes outward and covers the upper part of the floating gap; and a plurality of conductive terminals which are arranged at intervals along the extension direction of the tongue plate; each conductive terminal comprises a connecting part which is exposed on the surface of the tongue plate, a tail part which is installed on the base, and a floating part which is connected between the connecting part and the tail part and can be elastically deformed; the floating part is located in the floating gap. The application can improve the electric connection reliability.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and more particularly to a first electrical connector, a second electrical connector, and an electrical connector combination. Background Technology

[0002] Chinese invention patent CN106058569B discloses an inter-substrate connection structure in which a first substrate and a second substrate are arranged opposite each other at a certain distance. The inter-substrate connection structure electrically connects a connector fixed to the first substrate to a connection object fixed to the second substrate. The connector includes: a mating side housing that engages with the connection object; a substrate side housing fixed to the first substrate; and a first terminal having a first contact portion that makes conductive contact with the connection object at a standard contact position when the connection object is engaged with the mating side housing, and a movable piece that elastically connects the mating side housing and the substrate side housing. In the mating state, the first substrate and the second substrate... When at least one of the mating side housings flexes in the mating direction and the pull-out direction of the connecting object, the first contact portion maintains a contact state at the standard contact position without misaligning from the standard contact position and without sliding with the connecting object. This is elastically supported by the movable piece on the mating side housing and the substrate side housing, which are relatively displaced in conjunction with the flexing of the first substrate or the second substrate. The mating side housing or the connecting object has a mating gap such that when at least one of the first substrate and the second substrate flexes in a direction that shortens the distance between the substrates, the mating side housing is pressed into this mating gap, thereby deepening the mating position between the mating side housing and the connecting object. According to the present invention, a connector can be configured such that even with vibrations in the mating direction and the pull-out direction, the contact portion does not wear and can maintain conductive contact.

[0003] However, in this design, because a fitting gap must be provided for the mating side housing to be pressed in, when external dust enters this gap, it can easily fall into the gap between the terminals, causing a short circuit and affecting the reliability of the electrical connection. Furthermore, for connectors and connected objects intended for use in vibration environments, maintaining a stable electrical connection between the terminals of the connector and the connected object is particularly important, and the existing technical solution needs further improvement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and to propose a first electrical connector, a second electrical connector, and an electrical connector combination that can improve the reliability of electrical connections.

[0005] According to one aspect of the present invention, a first electrical connector is provided, comprising: a base having an interior cavity; a floating seat buoyantly mounted within the cavity and forming a floating gap with the inner wall of the cavity; the floating seat including an upwardly projecting tongue and an outer wall surrounding the outer periphery of the tongue; each side of the outer wall having an outwardly projecting protrusion covering the floating gap; and a plurality of conductive terminals spaced apart along the extension direction of the tongue; each conductive terminal including a mating portion exposed on the surface of the tongue, a tail portion mounted on the base, and a flexible, deformable floating portion connecting the mating portion and the tail portion; the floating portion being located in the floating gap.

[0006] According to another aspect of the present invention, a second electrical connector is provided, comprising: an insulating base including a body and a mating housing protruding upward from the body; the mating housing including two opposing first sidewalls and two opposing second sidewalls, the two first sidewalls and the two second sidewalls enclosing a mating cavity; a plurality of signal terminals spaced apart along the extending direction of the first sidewalls; each signal terminal including an elastic contact portion protruding into the mating cavity and a first solder portion protruding downward from the body; and a plurality of power terminals, each power terminal including a body, a reinforcing retaining portion, and a corner connection portion connecting the body and the reinforcing retaining portion; the body including a second solder portion mounted on the outer side of the first sidewall and protruding downward from the insulating base, a power contact portion protruding inward into the mating cavity, and a U-shaped bend portion connecting the second solder portion and the power contact portion; the reinforcing retaining portion including a retaining body retaining on the outer side of the second sidewall and a locking arm retaining on the inner side of the second sidewall.

[0007] According to another aspect of the present invention, an electrical connector assembly is provided, comprising a first electrical connector as described above and a second electrical connector as described above, wherein the tongue of the floating seat of the first electrical connector extends into the mating cavity of the second electrical connector, and the mating portion of the conductive terminal is electrically connected to the elastic contact portion of the signal terminal or the power contact portion of the power terminal.

[0008] Compared with the prior art, the present invention has at least the following advantages: In the first electrical connector of the present invention, by the floating of the floating seat relative to the base and the setting of the floating portion of the conductive terminal, the first electrical connector is formed as a floating connector, which can be used in a vibration environment; the protruding portions on both sides of the floating seat cover the floating gap between the floating seat and the base, which can prevent short circuit of the conductive terminal caused by dust entering the floating gap and improve the reliability of the electrical connection.

[0009] In the second electrical connector of the present invention, the power terminal is secured to the second sidewall by the reinforced retaining portion, thereby ensuring the positional reliability of the power terminal in the insulating base. This ensures stable and reliable contact of the power terminal even under vibration, improves the reliability of the electrical connection, and facilitates the transmission of large currents. Attached Figure Description

[0010] Figure 1 This is a perspective view of an electrical connector assembly according to a preferred embodiment of the present invention.

[0011] Figure 2 yes Figure 1 The front view.

[0012] Figure 3 yes Figure 2 AA sectional view.

[0013] Figure 4 yes Figure 2 BB cross-sectional view.

[0014] Figure 5 and Figure 6 yes Figure 1 Two different perspective views of the exploded 3D diagram.

[0015] Figure 7 yes Figure 6 A front view of the first electrical connector in the circuit.

[0016] Figure 8 yes Figure 7 CC section view.

[0017] Figure 9 and Figure 10 yes Figure 7 Two different perspective views of the exploded 3D diagram.

[0018] Figure 11 yes Figure 5 Front view of the second electrical connector in the middle.

[0019] Figure 12 yes Figure 11 DD sectional view.

[0020] Figure 13 yes Figure 11 EE sectional view.

[0021] Figure 14 and Figure 15 yes Figure 11 Two different perspective views of the exploded 3D diagram.

[0022] Figure 16 This is a structural diagram of another preferred embodiment of the second power terminal.

[0023] Figure 17 yes Figure 16 The front view.

[0024] Labeling Explanation: 100, Electrical Connector Assembly;

[0025] 1. First electrical connector;

[0026] 11. Base; 111. Longitudinal side plate; 1111. First fixing groove; 1116. First power terminal receiving groove; 1117. First signal terminal receiving groove; 112. Transverse side plate; 113. Receiving cavity; 1130. Floating gap; 114. First positioning protrusion;

[0027] 12. Floating seat; 121. Tongue plate; 1211. Flat plate; 1212. Column; 1216. Second power terminal receiving slot; 1217. Second signal terminal receiving slot; 122. Exterior wall; 1221. Frame; 1222. Protrusion; 1223. Base; 1224. Groove; 1226. Connecting plate;

[0028] 13. Conductive terminals;

[0029] 16. First power terminal; 161. Connecting part; 162. Tail end; 163. Floating part; 1631. Slit;

[0030] 17. First signal terminal; 171. Connecting part; 172. Tail end; 173. Floating part;

[0031] 14. First fixing piece; 141. Upper fixing part; 142. Side fixing part; 143. Lower fixing part;

[0032] 2. Second electrical connector;

[0033] 21. Insulating base; 211. Body; 2111. Second fixing slot; 2112. Signal terminal receiving slot; 2113. Power terminal receiving slot; 2114. Holding slot; 2116. Signal terminal fixing slot;

[0034] 212. Dating shell; 2121. First sidewall; 2122. Second sidewall; 2123. Dating cavity;

[0035] 214. Second positioning protrusion;

[0036] 22. Second signal terminal; 221. Resilient contact portion; 2211. Spring arm; 2212. Signal contact; 222. First soldering portion; 223. Mounting portion; 2231. Horizontal mounting piece; 2232. Vertical mounting piece; 2235. Mounting protrusion;

[0037] 23 / 23a, Second power terminal; 231, Main body; 2311, Second welding part; 2312 / 2312a, Power contact part; 2313, U-shaped bend; 2315, Contact arm; 2316 / 2316a, Power contact; 2317, U-shaped contact arm; 2318, Linear contact arm; 2319, Opening; 232, Reinforced holding part; 2321, Holding body; 2322, Locking arm; 2323, Holding protrusion; 233, Corner connection part;

[0038] 24. Second fixing plate. Detailed Implementation

[0039] Although the invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to what is described herein.

[0040] Therefore, a feature pointed out in this specification is used to illustrate one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. While certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0041] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of the invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0042] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] See Figures 1 to 4 This preferred embodiment provides an electrical connector assembly 100, which includes a first electrical connector 1 and a second electrical connector 2 mating with each other. The first electrical connector 1 can be mounted on a first circuit board (not shown), and the second electrical connector 2 can be mounted on a second circuit board (not shown). The mating of the first electrical connector 1 and the second electrical connector 2 forms an electrical connection between the first circuit board and the second circuit board. The first electrical connector 1 is a floating connector, and the second electrical connector 2 is a fixed connector, thereby maintaining the electrical connection between the first electrical connector 1 and the second electrical connector 2 even under vibration.

[0044] For ease of description, the orientation of the opposite end of the first electrical connector 1 and the second electrical connector 2 is defined as "upper", and the orientation of the opposite end is defined as "lower".

[0045] See Figures 5 to 10 The first electrical connector 1 mainly includes a base 11, a floating seat 12 that can float relative to the base 11, a plurality of conductive terminals 13 connecting the base 11 and the floating seat 12, and two first fixing pieces 14 respectively installed at both ends of the base 11.

[0046] See Figure 9 and Figure 10 The base 11 is rectangular and includes two opposing longitudinal side plates 111 extending along the length direction and two opposing transverse side plates 112 extending along the width direction. The longitudinal side plates 111 and the transverse side plates 112 surround each other to form a vertically penetrating receiving cavity 113 inside the base 11.

[0047] The longitudinal side plate 111 is a plate-like structure that is low at both ends and high in the middle. The upper surfaces of its two ends are roughly flush with the upper surface of the transverse side plate 112, while the upper surface of its middle part extends upward beyond the transverse side plate 112. The lower surface of the longitudinal side plate 111 is flush with the lower surface of the transverse side plate 112 to facilitate mounting onto the first circuit board. Two first positioning protrusions 114 further protrude downward from the bottom of one of the longitudinal side plates 111 to facilitate positioning of the base 11 on the first circuit board.

[0048] The outer surfaces of both ends of the longitudinal side plate 111 are respectively provided with a first fixing groove 1111 that runs vertically through the top and bottom. The cross-section of the first fixing groove 1111 is T-shaped, with the narrow end of the T-shape located on the outside.

[0049] The inner side of the longitudinal side plate 111 has a first power terminal receiving groove 1116 near both ends. Between these two first power terminal receiving grooves 1116, a plurality of first signal terminal receiving grooves 1117 are arranged side-by-side along the length of the longitudinal side plate 111. Both the first power terminal receiving grooves 1116 and the first signal terminal receiving grooves 1117 penetrate the lower and inner surfaces of the longitudinal side plate 111, but not the upper surface. These first signal terminal receiving grooves 1117 have substantially the same width and are arranged at equal intervals. The width of the first power terminal receiving groove 1116 is greater than the width of the first signal terminal receiving groove 1117.

[0050] Still refer to Figure 9 and Figure 10 The floating seat 12 includes an upwardly projecting tongue plate 121 and an outer wall 122 surrounding the outer periphery of the tongue plate 121.

[0051] The tongue plate 121 includes a flat plate portion 1211 and two column portions 1212 respectively connected to both ends of the flat plate portion 1211 in the length direction.

[0052] The flat plate 1211 is an upright rectangular flat plate structure, and its two opposite surfaces are respectively arranged with a plurality of second signal terminal receiving slots 1217 along the length direction.

[0053] The column portion 1212 is a square column extending vertically, and its height and width both exceed those of the flat plate portion 1211. A second power terminal receiving groove 1216 is provided on each of the two sides of the column portion 1212.

[0054] The second power terminal receiving slot 1216 and the second signal terminal receiving slots 1217 are all vertically connected, wherein the width of the second power terminal receiving slot 1216 is greater than the width of the second signal terminal receiving slot 1217.

[0055] The exterior wall 122 includes a rectangular frame portion 1221, two protrusions 1222 extending outward from opposite sides of the frame portion 1221, and two base portions 1223 extending downward from the other opposite sides of the frame portion 1221.

[0056] The frame portion 1221 surrounds the outer periphery of the tongue plate 121, and the inner wall of the frame portion 1221 is spaced from the tongue plate 121. In the vertical direction, both the upper and lower ends of the tongue plate 121 extend beyond the frame portion 1221, wherein the lower end of the column portion 1212 of the tongue plate 121 protrudes outward and is connected to the lower end of the frame portion 1221.

[0057] The protrusion 1222 is elongated and extends vertically outward from the lower ends of the two side walls of the frame portion 1221 along its length. The lower surface of the protrusion 1222 is flush with the lower surface of the frame portion 1221. The upper surface of the protrusion 1222 has a sloped transition where it connects with the side wall of the frame portion 1221, that is, the thickness of the portion of the protrusion 1222 near the frame portion 1221 gradually increases.

[0058] The protrusion 1222 extends horizontally and continuously along the length direction of the frame portion 1221, consistent with the length direction of the tongue plate 121, and the two ends of the protrusion 1222 extend outward beyond the two second power terminal receiving grooves 1216 at both ends of the tongue plate 121 in the length direction.

[0059] The base 1223 extends downward from the lower ends of the two side walls of the frame portion 1221 along the width direction. The lower part of the base 1223 also protrudes outward along the length direction of the frame portion 1221, and a groove 1224 is provided on the lower outer surface of the base 1223. The inner sides of the two bases 1223 are connected to the column portion 1212 of the tongue plate 121, and the base 1223 is also provided with an inwardly protruding connecting plate 1226, which is connected to the lower surface of the column portion 1212.

[0060] See also Figure 5 and Figure 8 The floating seat 12 is installed within the receiving cavity 113 of the base 11, forming a floating gap with the inner wall of the base 11, thereby allowing the floating seat 12 to float relative to the base 11 in three-dimensional space. Specifically, the two base portions 1223 of the outer wall 122 are received within the receiving cavity 113, wherein the two sides of the base portions 1223 form floating gaps 1130 with the two longitudinal side plates 111 of the base 11, respectively. The frame portion 1221 and the protrusion 1222 of the outer wall 122 are located above the base 11, wherein the protrusions 1222 on both sides correspondingly cover the floating gaps 1130 on both sides. The protrusion 1222 extends outward beyond the floating gap 1130 and is located above the longitudinal side plate 111. Thus, when mating with the second electrical connector 2, the protrusion 1222 can also press against the upper surface of the longitudinal side plate 111 to prevent the floating seat 12 from moving further downward, so as to avoid damaging the conductive terminal 13.

[0061] See next Figure 9 The multiple conductive terminals 13 are divided into four first power supply terminals 16 for transmitting power and multiple first signal terminals 17 for transmitting signals, depending on their purpose. These conductive terminals 13 can be formed by bending metal sheets. The specific number of conductive terminals 13 can be flexibly set according to the actual situation.

[0062] The first power terminal 16 includes a mating portion 161, a tail portion 162, and a flexible floating portion 163 connected between the mating portion 161 and the tail portion 162. The mating portion 161 is a flat plate extending vertically upward. The tail portion 162 is L-shaped, with its upper end extending vertically and having fixed barbs protruding to both sides. The tail portion 162 is parallel and spaced apart from the mating portion 161, and its lower end extends horizontally away from the mating portion 161. The floating portion 163 is connected between the lower end of the mating portion 161 and the upper end of the tail portion 162 in a Z-shaped bend. Due to its bend, it has the ability to elastically deform, allowing relative displacement between the mating portion 161 and the tail portion 162.

[0063] In this embodiment, two strip-shaped slits 1631 are provided on the floating part 163. The slits 1631 extend along the bending direction of the floating part 163 of the first power terminal 16. The slits 1631 can increase the elasticity of the floating part 163 and make the floating part 163 easier to deform.

[0064] The structure of the floating part 163 is not limited to the structure shown in the figure; other flexible bending structures that can be elastically deformed can also be applied.

[0065] The structure of the first signal terminal 17 is basically the same as that of the first power terminal 16. The first signal terminal 17 also includes a mating portion 171, a tail portion 172, and a floating portion 173 that is elastically deformable and connected between the mating portion 171 and the tail portion 172. The difference is that the width of the first signal terminal 17 is smaller than that of the first power terminal 16, and the floating portion 173 of the first signal terminal 17 does not have a slit.

[0066] Main references Figure 7 and Figure 8 The four first power terminals 16 and the plurality of first signal terminals 17 connect the floating seat 12 to the base 11 in a three-dimensional floating manner. The mating portions 161 of the first power terminals 16 and the mating portions 171 of the first signal terminals 17 are respectively mounted on the tongue plate 121 of the floating seat 12. The tail portions 162 of the first power terminals 16 and the tail portions 172 of the first signal terminals 17 are respectively mounted on the longitudinal side plate 111 of the base 11. The floating portions 163 of the first power terminals 16 and the floating portions 173 of the first signal terminals 17 are located within the floating gap between the base 11 and the floating seat 12, and the elastic deformation of these floating portions 163 and 173 allows the base 11 and the floating seat 12 to float relative to each other. When the base 11 and the floating seat 12 move relative to each other in one or more of the vertical, horizontal, and front-back directions, the elastic deformation of the floating parts 163 and 173 absorbs these relative movements and maintains the connection between the base 11 and the floating seat 12.

[0067] Specifically, the mating portions 161 of the four first power terminals 16 are respectively installed into the four second power terminal receiving slots 1216 of the tongue plate 121, and the four mating portions 161 are respectively exposed on the two side surfaces of the two pillar portions 1212. These first signal terminals 17 are arranged in two rows on both sides of the flat plate portion 1211, with each row of first signal terminals 17 spaced apart along the extending direction of the flat plate portion 1211. The mating portions 171 of each first signal terminal 17 are installed into the second signal terminal receiving slots 1217 of the flat plate portion 1211 and exposed on the surface of the flat plate portion 1211. Since the width of the mating portions 161 of the first power terminals 16 is greater than the width of the mating portions 171 of the first signal terminals 17, these first power terminals 16 can transmit a larger current.

[0068] The tail 162 of the first power terminal 16 is installed in the first power terminal receiving groove 1116 of the longitudinal side plate 111, and the lower end of the tail 162 extends beyond the longitudinal side plate 111. The tail 172 of the first signal terminal 17 is installed in the corresponding first signal terminal receiving groove 1117, and the lower end of the tail 172 also extends beyond the longitudinal side plate 111.

[0069] The floating portions 163 of the first power terminals 16 and the floating portions 173 of the first signal terminals 17 are exposed within the floating gap 1130 between the floating seat 12 and the base 11. Since the protrusion 1222 of the floating seat 12 covers the upper part of the floating gap 1130, it prevents dust from falling into the floating gap 1130 and causing short circuits in the first power terminals 16 or first signal terminals 17, thereby improving the reliability of the electrical connection. The protrusion 1222 extends beyond the first power terminals 16 at both ends in the length direction, meaning it can cover all the first power terminals 16 and first signal terminals 17 in the length direction. Therefore, the protrusion 1222 provides protection for all the conductive terminals 13.

[0070] See Figure 6 and Figure 9 The first fixing piece 14 includes an upper fixing portion 141, two side fixing portions 142 that bend downward from both ends of the upper fixing portion 141, and a lower fixing portion 143 that bends outward from the lower end of the side fixing portions 142. The first fixing piece 14 can be formed by bending a metal sheet.

[0071] Two first fixing plates 14 are respectively installed at both ends of the base 11. The upper fixing part 141 of each first fixing plate 14 spans across the two longitudinal side plates 111 of the base 11 and stops above the base 1223 of the floating seat 12. The side fixing part 142 of the first fixing plate 14 is inserted into the first fixing groove 1111 of a longitudinal side plate 111, and the lower fixing part 143 extends downward beyond the base 11.

[0072] Based on the above description of the first electrical connector 1, the first electrical connector 1 is mounted on a first circuit board during use. The first positioning protrusion 114 at the bottom of the base 11 allows for quick positioning of the first electrical connector 1 on the first circuit board. The lower fixing portions 143 of the two first fixing pieces 14 are soldered and fixed to the first circuit board, thereby fixing the base 11 to the first circuit board. Simultaneously, the upper fixing portions 141 of the two first fixing pieces 14 prevent the floating seat 12 from detaching upwards from the base 11. The tail portion 162 of the first power terminal 16 and the tail portion 172 of the first signal terminal 17 are soldered to corresponding pads on the first circuit board to establish an electrical connection between the first electrical connector 1 and the first circuit board.

[0073] See Figure 5 , Figure 6 and Figures 11 to 15 The second electrical connector 2 includes an insulating base 21, and a plurality of second signal terminals 22, four second power terminals 23 and two second fixing plates 24 respectively mounted on the insulating base 21.

[0074] See Figure 14 The insulating base 21 includes a body 211 and a mating shell 212 protruding upward from the body 211. The body 211 is generally rectangular in shape, with a second fixing groove 2111 on each of its two side surfaces near its ends. The mating shell 212 is rectangular in shape, including two opposing first sidewalls 2121 and two opposing second sidewalls 2122. The first sidewalls 2121 extend along the length direction of the mating shell 212, and the second sidewalls 2122 extend along the width direction of the mating shell 212. The two first sidewalls 2121 and the two second sidewalls 2122 enclose a mating cavity 2123. The two ends of the first sidewalls 2121 have a smaller thickness than the middle part; correspondingly, the mating cavity 2123 is generally I-shaped, with a larger width at both ends and a smaller width in the middle.

[0075] Combination Figure 14 and Figure 15The main body 211 has a power terminal receiving groove 2113 extending vertically through each of its two ends corresponding to the first sidewall 2121, and the power terminal receiving groove 2113 communicates with the outer surface of the first sidewall 2121. The main body 211 has two spaced-apart retaining grooves 2114 corresponding to each of the second sidewalls 2122, and the retaining grooves 2114 communicate with the outer surface of the second sidewall 2122. The bottom surface of the main body 211 also has two downwardly protruding second positioning protrusions 214 to facilitate the positioning of the insulating base 21 when it is installed onto a second circuit board.

[0076] Combined Figure 12 and Figure 15 The lower surface of the body 211 is provided with two rows of signal terminal receiving slots 2112. Multiple signal terminal receiving slots 2112 in each row are arranged along the length of the body 211 and extend upwards to the first sidewall 2121 of the docking housing 212. The signal terminal receiving slots 2112 are connected to the docking cavity 2123. Additionally, the body 211 is also provided with a vertically extending signal terminal fixing slot 2116, the lower end of which is connected to the signal terminal receiving slots 2112.

[0077] See Figure 12 and Figure 14 The plurality of second signal terminals 22 are divided into two rows and are arranged at intervals along the extension direction of the first sidewall 2121, and are respectively installed in the two rows of signal terminal receiving slots 2112.

[0078] Each second signal terminal 22 includes a mounting portion 223, an elastic contact portion 221 extending from one side of the mounting portion 223, and a first solder portion 222 extending from the lower end of the mounting portion 223. The mounting portion 223, the elastic contact portion 221, and the first solder portion 222 are located on the same plane, and the second signal terminal 22 can be made by stamping metal sheet.

[0079] The mounting portion 223 includes a laterally extending horizontal mounting piece 2231 and a vertical mounting piece 2232 extending upward from the upper edge of the horizontal mounting piece 2231. Two mounting protrusions 2235 protrude outward from one side of the vertical mounting piece 2232, and the mounting protrusions 2235 of the vertical mounting piece 2232 are secured in the signal terminal fixing groove 2116, thereby fixing the second signal terminal 22 to the body 211.

[0080] The first solder portion 222 extends downward from the lower edge of the transverse mounting piece 2231, and one end of the first solder portion 222 extends slightly outward beyond the side edge of the mounting piece 223 in a direction away from the elastic contact portion 221. The first solder portion 222 extends downward from the body 211 for soldering to a second circuit board.

[0081] The elastic contact portion 221 has two spring arms 2211 extending obliquely upward from the inner edge of the transverse mounting piece 2231. The two spring arms 2211 are spaced apart by a distance, and each spring arm 2211 is elastic, with the upper end of one spring arm 2211 extending above the other spring arm 2211. The upper end of each spring arm 2211 is provided with a protruding signal contact 2212, and the signal contacts 2212 of the two spring arms 2211 are located on a vertical line extending in the vertical direction and are arranged vertically spaced, with the signal contacts 2212 protruding into the mating cavity 2123.

[0082] See also Figure 14 The second power terminal 23 includes a main body 231, a reinforcing retaining portion 232, and a corner connecting portion 233 connecting the main body 231 and the reinforcing retaining portion 232. The second power terminal 23 is preferably formed by bending a metal sheet.

[0083] The main body 231 includes a second welding part 2311, a power contact part 2312 located inside the second welding part 2311, and a U-shaped bend 2313 connected between the upper end of the second welding part 2311 and the power contact part 2312.

[0084] The second welded part 2311 is in the shape of an upright flat plate, with its upper half connected to the corner connecting part 233. The lower half of the second welded part 2311 extends downward beyond the corner connecting part 233, and the width of the upper half of the second welded part 2311 is greater than the width of its lower half.

[0085] The U-shaped bend 2313 is generally U-shaped, extending upward from the upper edge of the second welded part 2311, then bending inward and further downward.

[0086] In this preferred embodiment, the power contact portion 2312 has two power contacts 2316 at the same height and spaced apart from each other. The power contact portion 2312 includes two contact arms 2315 extending downward from the lower end of the U-shaped bend portion 2313, the two contact arms 2315 are arranged side by side with a gap, and the lower end of each contact arm 2315 protrudes inward with a power contact 2316.

[0087] See Figure 14 The reinforced retaining portion 232 includes a retaining body 2321 and a locking arm 2322 extending inward and downward from the top of the retaining body 2321. The retaining body 2321 is connected to the second welded portion 2311 via the corner connecting portion 233, and the retaining body 2321 is perpendicular to the second welded portion 2311. The locking arm 2322 forms a generally U-shaped structure with the retaining body 2321. Preferably, a plurality of retaining protrusions 2323 protrude outward from both sides of the lower part of the retaining body 2321.

[0088] See Figure 5 The four second power terminals 23 are respectively installed at the four corners of the docking housing 212. The main body 231 of the second power terminal 23 is installed on the first side wall 2121 of the docking housing 212, and the reinforcing retaining part 232 is installed on the second side wall 2122 of the docking housing 212.

[0089] The retaining body 2321 is fixed to the outer side of the second sidewall 2122, and the locking arm 2322 is fixed to the inner side of the second sidewall 2122. Through the cooperation of the retaining body 2321 and the locking arm 2322, the reinforced retaining part 232 is securely mounted on the second sidewall 2122, thereby maintaining the positional reliability of the second power terminal 23 on the docking housing 212.

[0090] The retaining protrusion 2323 is secured into the retaining groove 2114 of the body 211, further improving the retaining effect of the reinforced retaining part 232 on the insulating base 21.

[0091] See also Figure 13 The second welding portion 2311 is mounted on the outer side of the first sidewall 2121. The lower end of the second welding portion 2311 passes through the power terminal receiving groove 2113 of the body 211 and extends downward beyond the body 211 for welding to a second circuit board. The power contact portion 2312 is located on the inner side of the first sidewall 2121 and protrudes into the mating cavity 2123.

[0092] In such Figure 16 and Figure 17 In another preferred embodiment, the second power terminal 23a differs from the second power terminal 23 primarily in that the two power contacts 2316a of the power contact portion 2312a are arranged vertically at intervals. The power contact portion 2312a includes a U-shaped contact arm 2317 and a linear contact arm 2318. An opening 2319 is formed inside the U-shaped contact arm 2317. The linear contact arm 2318 bends downwards and inwards from the lower end of the U-shaped bend 2313, extending into the opening 2319. The power contacts 2316a on the linear contact arm 2318 are located above the power contacts 2316a on the U-shaped contact arm 2317.

[0093] See Figure 5 The second fixing piece 24 is installed at both ends of the body 211 of the insulating base 21, and each second fixing piece 24 passes downward through the second fixing groove 2111 of the body 211. In this embodiment, the structure of the second fixing piece 24 is the same as the structure of the first fixing piece 14 of the first electrical connector 1, and will not be described again here.

[0094] Based on the above description of the structure of the second electrical connector 2, the second electrical connector 2 is mounted on a second circuit board during use. The second positioning protrusion 214 at the bottom of the insulating base 21 allows for quick positioning of the second electrical connector 2 on the second circuit board. The lower end of the second fixing piece 24 is soldered and fixed to the second circuit board, thereby securing the second electrical connector 2 to the second circuit board. The first soldering portion 222 of the second signal terminal 22 and the second soldering portion 2311 of the second power terminal 23 are respectively soldered to corresponding pads or holes on the second circuit board to establish an electrical connection between the second electrical connector 2 and the second circuit board.

[0095] Key references Figure 3 and Figure 4 When the first electrical connector 1 and the second electrical connector 2 are mated, the tongue plate 121 of the first electrical connector 1 extends into the mating cavity 2123 of the second electrical connector 2, the mating portion 161 of the first power terminal 16 is electrically connected to the power contact portion 2312 of the second power terminal 23, and the mating portion 171 of the first signal terminal 17 is electrically connected to the elastic contact portion 221 of the second signal terminal 22.

[0096] When subjected to vibration, relative movement occurs between the base 11 and the floating seat 12 of the first electrical connector 1. This relative movement is absorbed by the floating portion 163 of the first power terminal 16 and the floating portion 173 of the first signal terminal 17, thereby maintaining the electrical connection under vibration. The two protrusions 1222 extending from both sides of the floating seat 12 prevent dust from entering the floating gap 1130 between the base 11 and the floating seat 12, which could cause a short circuit in the conductive terminals. Furthermore, the protrusions 1222 can also limit the relative movement between the base 11 and the floating seat 12, preventing excessive relative displacement from damaging the conductive terminals 13 and causing connection failure.

[0097] In the second electrical connector 2 of the present invention, the second power terminal 23 / 23a is secured in position on the insulating base 21 by means of the reinforced retaining part 232, thereby ensuring stable and reliable contact between the second power terminal 23 / 23a and the first power terminal 16 even in a vibration environment, improving the reliability of the electrical connection and facilitating the transmission of large currents.

[0098] Furthermore, the second power terminal 23 / 23a has two power contacts 2316 / 2316a, and the second signal terminal 22 also has two signal contacts 2212. During connection, both power contacts 2316 / 2316a can establish an electrical connection with the first power terminal 16, and similarly, both signal contacts 2212 can establish an electrical connection with the first signal terminal 17. This ensures better contact performance under vibration conditions and further improves the reliability of the electrical connection.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection claimed in the claims.

Claims

1. A second electrical connector, characterized in that, include: An insulating base includes a body and a mating housing protruding upward from the body; the mating housing includes two opposing first sidewalls and two opposing second sidewalls, the two first sidewalls and the two second sidewalls enclosing a mating cavity; Multiple signal terminals are spaced apart along the extending direction of the first sidewall; each signal terminal includes an elastic contact portion protruding into the mating cavity and a first welding portion extending downward from the body; and Multiple power terminals, each power terminal including a body, a reinforcing retaining portion and a corner connecting portion connecting the body and the reinforcing retaining portion; the body includes a second welding portion mounted on the outer side of the first sidewall and extending downward from the insulating base, a power contact portion protruding inward into the mating cavity and a U-shaped bend portion connecting the second welding portion and the power contact portion; the reinforcing retaining portion includes a retaining body retaining on the outer side of the second sidewall and a locking arm retaining on the inner side of the second sidewall.

2. The second electrical connector according to claim 1, characterized in that, The locking arm extends inward and downward from the upper end of the holding body; fixing protrusions extend outward from both sides of the lower part of the holding body and are secured to the insulating base.

3. The second electrical connector according to claim 1 or 2, characterized in that, The power contact portion includes two contact arms arranged at intervals, each contact arm having a power contact; both contact arms extend into the mating cavity.

4. The second electrical connector according to claim 1 or 2, characterized in that, The elastic contact portion of the signal terminal includes two spring arms that extend upward at an angle and are spaced apart by a distance. Each spring arm has a signal contact at its upper end. The signal contacts of the two spring arms protrude into the mating cavity and are located on a straight line in the vertical direction.

5. The second electrical connector according to claim 4, characterized in that, The signal terminal also includes a mounting portion connected between the elastic contact portion and the first welding portion, the mounting portion having at least one vertical mounting piece protruding upward, the vertical mounting piece being secured to the body.

6. An electrical connector assembly, characterized in that, The device includes a first electrical connector and a second electrical connector as described in any one of claims 1-5. The first electrical connector includes: a base having an interior cavity; a floating seat buoyantly mounted within the cavity and forming a floating gap with the inner wall of the cavity; the floating seat includes an upwardly protruding tongue and an outer wall surrounding the tongue; each side of the outer wall has an outwardly protruding protrusion covering the floating gap; and a plurality of conductive terminals spaced apart along the extension direction of the tongue; each conductive terminal includes a mating portion exposed on the surface of the tongue, a tail portion mounted on the base, and a flexible, deformable floating portion connecting the mating portion and the tail portion; the floating portion is located in the floating gap; the tongue of the floating seat of the first electrical connector extends into the mating cavity of the second electrical connector, and the mating portion of the conductive terminal is electrically connected to the elastic contact portion of the signal terminal or the power contact portion of the power terminal.

7. The electrical connector assembly according to claim 6, characterized in that, The outer wall of the first electrical connector includes a frame portion surrounding the tongue plate, protrusions extending outward from both sides of the frame portion, and two base portions extending downward from the other two sides of the frame portion; the base portions are received within the receiving cavity; the protrusions are located above the base and are able to press against the upper surface of the base.

8. The electrical connector assembly according to claim 7, characterized in that, The protrusion of the first electrical connector extends horizontally and continuously along the length of the frame portion, and the protrusion extends beyond the conductive terminals at both ends in the length direction.

9. The electrical connector assembly according to any one of claims 6-8, characterized in that, The conductive terminals at both ends of the tongue plate of the first electrical connector are power terminals for transmitting power, and the conductive terminal in the middle of the tongue plate is a signal terminal for transmitting signals. The width of the mating portion of the power terminal is wider than the width of the mating portion of the signal terminal, and the floating portion of the power terminal is provided with a slit extending along the bending direction of the power terminal.

Images