Electric connector assembly
By adopting a stamped flattened structure of the wire-end power supply PIN and the board-end power supply PIN in the electrical connector assembly, combined with the special plastic design, the existing electrical connector assembly design is solved, and more stable and efficient power transmission and lower production costs are achieved.
Patent Information
- Application Number
- CN202510052939.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-03-14
AI Technical Summary
The existing electrical connector assembly has problems such as excessive design size, poor heat dissipation performance and high production costs. It is mainly due to the design of the wire-end power supply PIN and the board-end power supply PIN, which leads to large occupancy of the plug-in area, poor heat diffusion and high injection molding process requirements.
An electrical connector assembly was designed, in which the wire-end power supply PIN and the plate-end power supply PIN adopt a stamped flat structure. Through the special design of the wire-end plastic and the plate-end plastic, a larger contact area and better heat dissipation performance are achieved, while reducing the number of insertion holes and reducing production costs.
It realizes that the electrical connector assembly can transmit electricity more stably in practical applications, has better high current carrying capacity, good heat dissipation performance and lower production costs.
Smart Images
Figure CN119627498A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric connector manufacturing, in particular to an electric connector assembly. Background Art
[0002] The electrical connector assembly is a universal connection device widely used in electronics, electrical appliances and instruments, mainly responsible for the task of current or signal transmission. The electrical connector assembly consists of a line-end electrical connector and a board-end electrical connector.
[0003] As far as the current technical status is concerned, Figure 1 , 2 As shown in , the line-end power PIN and the line-end signal PIN are both inserted into the line-end plastic body, and the two line-end power PINs are symmetrically arranged on both sides of the line-end signal PIN insertion area. The board-end power PIN and the board-end signal PIN are both based on the tail cover formed on the board-end plastic body as the insertion basis, and both extend into the cavity of the board-end plastic body to set the length. When the line-end electrical connector is plugged in with respect to the board-end electrical connector, the line-end signal PIN and the board-end signal PIN are plugged in with each other to coordinate the transmission of signals, and the line-end power PIN and the board-end power PIN are plugged in with each other to coordinate the transmission of electrical energy. And the line-end plastic body must be inserted into the cavity of the board-end plastic body. In actual applications, the most common electrical connector assemblies on the market have the following problems, which are specifically manifested as follows: 1) The design size of the line-end plastic body and the board-end plastic body are both relatively large. The reason is that the two line-end power PINs need to occupy a larger insertion area, that is, areas must be reserved on both sides of the line-end signal PIN insertion area to install the line-end power PINs. The two board-end power PINs need to occupy a larger plug-in area, and the rear cover of the board-end plastic body needs to reserve both the board-end signal PIN plug-in area and the board-end power PIN plug-in area; 2) The line-end power PIN is embedded in the line-end plastic body to achieve fixation, and the board-end power PIN is also embedded in the board-end plastic body to achieve fixation, which will seriously affect the heat dissipation performance of the line-end power PIN and the board-end power PIN. In addition, the line-end plastic body must be inserted into the cavity of the board-end plastic body, which means that part of the line-end plastic body is circumferentially wrapped by the board-end plastic body, which results in a large amount of heat energy generated in the process of coordinated transmission of electric energy between the line-end power PIN and the board-end power PIN cannot be dissipated in time, and the working temperature rises rapidly with the continued use time, which will inevitably affect the normal performance of the electrical connector assembly; 3) The design structure of the line-end electrical connector and the board-end electrical connector is relatively complex, and the number of insertion holes required to be formed on the line-end plastic body and the board-end plastic body is large, and the area occupies a large proportion, which puts extremely high requirements on the corresponding plastic molding process and molding quality. The above two factors lead to high production costs of the electrical connector assembly. Therefore, technical personnel are urgently needed to solve the above problems. Summary of the invention
[0004] Therefore, in view of the above existing problems and defects, the designers of the present invention collected relevant information, conducted multiple evaluations and considerations, and continued to experiment and modify after many years of R&D experience in this industry, which ultimately led to the emergence of the electrical connector assembly.
[0005] In order to solve the above technical problems, the present invention relates to an electrical connector assembly, which is composed of a line-end electrical connector and a board-end electrical connector. The line-end electrical connector includes a line-end plastic body, a line-end signal PIN and a line-end power PIN. The board-end electrical connector includes a board-end plastic body, a board-end signal PIN and a board-end power PIN. The line-end signal PIN and the board-end signal PIN are connected to each other to coordinately transmit signals, and the line-end power PIN and the board-end power PIN are connected to each other to coordinately transmit electrical energy. The line-end power PIN uses the line-end plastic body as an assembly basis, and it is in contact with the circumferential side wall of the line-end plastic body. The board-end power PIN uses the board-end plastic body as an assembly basis. The board-end power PIN is a sheet metal bending part, which is sequentially connected by a circuit board welding section, an embedded fixing section and an electrical conductive section. When the board-end power PIN is assembled relative to the board-end plastic body, the embedded fixing section is locked in position due to force interaction with the cavity side wall of the board-end plastic body, and the electrical conductive section is hidden in the cavity of the board-end plastic body. When the line-end electrical connector is mated with the board-end electrical connector, the electrical conductive section applies elastic pressing force to the line-end power PIN, and the electrical conductive section itself is able to approach / elastically press against the cavity side wall of the board-end plastic body due to the reaction force.
[0006] As a further improvement of the technical solution disclosed in the present invention, a strip-shaped embedding notch for inserting the line-end power PIN is formed on the line-end plastic body. The line-end power PIN is a sheet metal bending part, which is formed by connecting a contact function section and a wire welding section. When the line-end power PIN is assembled relative to the line-end plastic body, the contact function section passes through the strip-shaped embedding notch, and is locked in position due to force interaction with the circumferential side wall of the line-end plastic body, while the wire welding section is electrically connected to the power supply harness by soldering.
[0007] As a further improvement of the technical solution disclosed in the present invention, the wire welding section is in the form of a U-shaped groove, and is provided with a plurality of tin-containing grooves linearly evenly distributed along the dragging direction of the power supply harness.
[0008] As a further improvement of the technical solution disclosed in the present invention, an external hooking protrusion and an internal elastic resistance arm are formed on the contact function section at the same time. A resistance increasing depression or resistance increasing notch that matches the internal elastic resistance arm is formed on the line end plastic body. When the line end power supply PIN is assembled relative to the line end plastic body, the external hooking protrusion penetrates into the circumferential side wall of the strip-shaped embedding notch, and the internal elastic resistance arm sinks into the resistance increasing depression or resistance increasing notch by itself.
[0009] As a further improvement of the technical solution disclosed in the present invention, a process groove for inserting the contact functional section is formed on the plastic body of the wire end.
[0010] As a further improvement of the technical solution disclosed in the present invention, the contact function segment undergoes a chamfering process to form an avoidance slope. When the line-end power PIN is assembled with the line-end plastic body, the free end of the avoidance slope shall not go beyond the process sink groove.
[0011] As a further improvement of the technical solution disclosed in the present invention, the electrical conduction section is composed of a plurality of electrical conduction fingers, and adjacent electrical conduction fingers are separated by strip-shaped slits.
[0012] As a further improvement of the technical solution disclosed in the present invention, the number of line-end power PINs and board-end power PINs is consistent, both 2. The line-end power PINs are symmetrically arranged on both sides of the line-end plastic body, and the board-end power PINs are symmetrically arranged on both sides of the board-end plastic body cavity.
[0013] As a further improvement of the technical solution disclosed in the present invention, a first foolproof groove and a second foolproof groove are formed on the circumferential side wall of the wire end plastic body. A first foolproof convex strip adapted to the first foolproof groove and a second foolproof convex strip adapted to the second foolproof groove are formed on the cavity side wall of the plate end plastic body. The design shape and / or design size of the first foolproof groove and the second foolproof groove are different.
[0014] In practical applications, the electrical connector assembly disclosed in the present invention can achieve at least the following beneficial technical effects, specifically:
[0015] 1) The traditional plug-in electrical conduction method is abandoned. In the present invention, both the line-end power PIN and the board-end power PIN are stamped and flattened structures, and the two have a larger contact area after electrical conduction, ensuring that the electrical connector assembly can transmit power more stably in practical applications and has a better large current carrying capacity; and also thanks to the stamped and flattened design structure of the line-end power PIN and the board-end power PIN, the manufacturing difficulty and manufacturing cost are effectively reduced. In addition, the board-end power PIN is electrically connected with the line-end power PIN in an elastic pressure contact manner. In this way, the board-end power PIN and the line-end power PIN of the electrical connector assembly can still be benignly connected even in high-frequency and high-pair excitation occasions, further improving the stability and reliability of power transmission of the electrical connector assembly;
[0016] 2) When the line-end electrical connector is assembled, the line-end power PIN is in contact with the circumferential side wall of the line-end plastic body, and part of it is exposed; when the board-end electrical connector is assembled, the electrical conduction section of the board-end power PIN is hidden in the cavity of the board-end plastic body, and is close to the cavity side wall of the board-end plastic body. In this way, on the one hand, the heat generated during the electrical conduction process has the following three diffusion paths: directly diffused to the outside through the exposed parts of the line-end power PIN and the board-end power PIN; diffused to the outside through the insertion gap between the line-end electrical connector and the board-end electrical connector; diffused to the line-end plastic body and the board-end plastic body by heat conduction or radiation; the electrical connector assembly has good heat dissipation performance, avoiding the occurrence of the phenomenon that the subsequent working performance is affected by excessively high working temperature; on the other hand, under the premise that various design indicators are met, the design dimensions of the line-end plastic body and the board-end plastic body can be greatly reduced, which is conducive to reducing the overall design size of the electrical connector assembly;
[0017] 3) The number of insertion holes required to be formed on the wire-end plastic body and the board-end plastic body is greatly reduced, which can relax the requirements on the corresponding plastic molding process and molding quality to a certain extent, and is conducive to further reducing the molding cost of the electrical connector assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a physical picture of a line-end electrical connector belonging to an electrical connector assembly in the prior art.
[0020] Figure 2 This is a physical picture of a board-end electrical connector belonging to an electrical connector assembly in the prior art.
[0021] Figure 3 It is a three-dimensional schematic diagram of the electric connector assembly disclosed in the present invention.
[0022] Figure 4 It is an exploded schematic diagram of the electrical connector assembly disclosed in the present invention.
[0023] Figure 5 It is a three-dimensional schematic diagram of the centerline end electrical connector of the electrical connector assembly disclosed in the present invention.
[0024] Figure 6 It is an exploded schematic diagram of the centerline end electrical connector of the electrical connector assembly disclosed in the present invention.
[0025] Figure 7 It is a three-dimensional schematic diagram of a plastic body at a center line end of the electric connector assembly disclosed in the present invention from one viewing angle.
[0026] Figure 8 It is a three-dimensional schematic diagram of another viewing angle of the plastic body at the center line end of the electrical connector assembly disclosed in the present invention.
[0027] Fig. 9 yes Figure 7 Front view of .
[0028] Fig.10 It is a three-dimensional schematic diagram of a line-end signal PIN of the electrical connector assembly disclosed in the present invention.
[0029] Fig.11 It is a three-dimensional schematic diagram of a power PIN at the center line end of the electrical connector assembly disclosed in the present invention.
[0030] Fig.12 yes Figure 5 A top view of a graph (with hidden lines visible).
[0031] Fig.13 yes Fig.12 AA section view.
[0032] Fig.14 yes Figure 5 Front view of the .hdr file (with hidden lines visible).
[0033] Fig.15 yes Fig.14 BB cross-sectional view.
[0034] Fig.16 yes Fig.14 A partial enlarged view of I.
[0035] Fig.17 It is a three-dimensional schematic diagram of a board-end electrical connector in the electrical connector assembly disclosed in the present invention from one viewing angle.
[0036] Fig.18 It is a three-dimensional schematic diagram of another viewing angle of the board-end electrical connector in the electrical connector assembly disclosed in the present invention.
[0037] Fig.19 yes Fig.17 A top view of a graph (with hidden lines visible).
[0038] Fig. 20 It is a three-dimensional schematic diagram of a plastic body at a board end of the electrical connector assembly disclosed in the present invention from one viewing angle.
[0039] Fig.21 It is a three-dimensional schematic diagram of another viewing angle of the plastic body at the board end of the electrical connector assembly disclosed in the present invention.
[0040] Fig. 22 yes Fig.21 Front view of .
[0041] Fig.23 It is a three-dimensional schematic diagram of a board-end signal PIN in the electrical connector assembly disclosed in the present invention.
[0042] Fig.24 It is a three-dimensional schematic diagram of a board-end power PIN in the electrical connector assembly disclosed in the present invention.
[0043] Fig.25 yes Figure 3 A top view of a graph (with hidden lines visible).
[0044] Fig.26 yes Figure 3 Front view of the .hdr file (with hidden lines visible).
[0045] Fig. 27 yes Fig.26 CC cross-sectional view.
[0046] 1-line end electrical connector; 11-line end plastic body; 111-strip embedding notch; 112-resistance increasing notch; 113-process sinking groove; 114-first foolproof groove; 115-second foolproof groove; 12-line end signal PIN; 13-line end power PIN; 131-touch function section; 1311-external hooking protrusion; 1312-first inner extension elastic resistance arm; 1313-avoidance oblique position; 132-wire welding section; 1321-tinning capacity Slot; 2-board-end electrical connector; 21-board-end plastic body; 211-cavity; 212-first anti-fool convex strip; 213-second anti-fool convex strip; 214-embedded notch; 215-heat dissipation gap; 22-board-end signal PIN; 23-board-end power PIN; 231-circuit board welding section; 232-embedded fixing section; 2321-second inner extension elastic resistance arm; 233-electrical conduction section; 2331-electrical conduction finger; 2332-strip slit. DETAILED DESCRIPTION
[0047] The technical solution disclosed in the present invention is further described in detail below in conjunction with specific embodiments. Figure 3 , Figure 4 The three-dimensional schematic diagram and the exploded schematic diagram of the electrical connector assembly disclosed in the present invention are respectively shown, and it can be seen that it is composed of a line-end electrical connector 1 and a board-end electrical connector 2. In a specific application, the line-end electrical connector 1 and the board-end electrical connector 2 cooperate to undertake the task of transmitting signals or electrical energy.
[0048] like Figure 5 , 6As shown in FIG. 1 , the line-end electrical connector 1 is mainly composed of a line-end plastic body 11, a line-end signal PIN 12, and a line-end power PIN 13. A plurality of line-end signal PINs 12 are inserted into the line-end plastic body 11 (eg, Fig.10 , 12 , 13), and the line end power PIN 13 is assembled with the line end plastic body 11 as the base, and it is in contact with the circumferential side wall of the line end plastic body 11. The number of the line end power PIN 13 is 2, and they are symmetrically arranged on both sides of the line end plastic body 11. Figure 7 , 8 As shown in FIG. 9 , a strip-shaped embedding notch 111 is formed on the line end plastic body 11 for inserting the line end power PIN 13. Fig.11 As shown in the figure, the line-end power supply PIN 13 is a sheet metal bending part, which is connected by a contact function section 131 and a wire welding section 132. When the line-end power supply PIN 13 is assembled relative to the line-end plastic body 11, the contact function section 131 passes through the strip-shaped embedding notch 111, and is locked in position due to force interaction with the circumferential side wall of the line-end plastic body 11, while the wire welding section 132 is electrically connected to the power supply harness by soldering.
[0049] like Fig.17 , 18 As shown in FIG. 19 , the board-side electrical connector 2 is mainly composed of a board-side plastic body 21, a board-side signal PIN 22, and a board-side power PIN 23. Fig.23 As shown in FIG. 2 , the rear cover of the board end plastic body 21 is used as the insertion and fixing basis. The board end power PIN 23 uses the board end plastic body 21 as the assembly basis. The number of the board end power PIN 23 is 2, and they are symmetrically arranged on both sides of the cavity 211. Fig.24 As shown in FIG, the board-side power supply PIN 23 is a sheet metal bending part, which is sequentially connected by a circuit board welding section 231, an embedded fixing section 232 and an electrical conduction section 233. Fig.18 , 21 As shown in FIG. 22 , an embedding notch 214 is formed on the rear cover plate of the board end plastic body 21 to limit and fix the embedding fixing section 232. When the board end power PIN 23 is assembled relative to the board end plastic body 21, the embedding fixing section 232 is locked in position due to the force interaction with the side wall of the cavity 211, and the electrical conduction section 233 is hidden in the cavity 211.
[0050] like Fig.25 , 26As shown in 27, when the line-end electrical connector 1 is fully plugged with the board-end electrical connector 2, the line-end signal PIN 12 is able to conduct with the board-end signal PIN 22 to coordinately transmit signals, and the electrical conduction section 233 applies an elastic pressing force to the line-end power PIN 13, and the electrical conduction section 233 itself is able to approach / elastically press against the side wall of the cavity 211 due to the reaction force, so that the line-end power PIN 13 is able to conduct with the board-end power PIN 23 to coordinately transmit electrical energy.
[0051] In practical applications, the electrical connector assembly disclosed in the present invention has achieved at least the following beneficial technical effects, specifically:
[0052] 1) In the present invention, the traditional pin electrical conduction method is abandoned. The line-end power PIN13 and the board-end power PIN23 are preferably stamped and flattened structures, and the two have a larger contact area after electrical conduction, ensuring that the electrical connector assembly can transmit power more stably in practical applications and has a better large current carrying capacity; and also thanks to the stamped and flattened design structure of the line-end power PIN13 and the board-end power PIN23, the manufacturing difficulty and manufacturing cost are effectively reduced. In addition, the board-end power PIN23 uses an elastic pressure contact method to achieve electrical conduction with the line-end power PIN13. In this way, the board-end power PIN23 and the line-end power PIN13 of the electrical connector assembly can still be benignly conductive even in the face of high-frequency and high-pair excitation occasions, further improving the stability and reliability of power transmission of the electrical connector assembly;
[0053] 2) When the line-end electrical connector 1 is assembled, the line-end power PIN 13 is in contact with the circumferential side wall of the line-end plastic body 11 and is partially exposed; when the board-end electrical connector 2 is assembled, the electrical conduction section 233 of the board-end power PIN 23 is hidden in the cavity 211 and is close to the side wall of the cavity 211. In this way, on the one hand, the heat generated during the electrical conduction process has the following three diffusion paths: directly diffused to the outside through the exposed parts of the line-end power PIN 13 and the board-end power PIN 23; diffused to the outside through the exposed parts of the line-end power PIN 13 and the board-end power PIN 23; diffused to the outside through the exposed parts of the board-end power PIN 23; diffused to the outside through the exposed parts of the board-end power PIN 23. It diffuses toward the outside through the insertion gap between the line-end electrical connector 1 and the board-end electrical connector 2; it diffuses to the line-end plastic body 11 and the board-end plastic body 21 by heat conduction or radiation; the electrical connector assembly has good heat dissipation performance, thereby preventing the subsequent high working temperature from affecting the normal working performance; on the other hand, under the premise that various design indicators are met, the design dimensions of the line-end plastic body 11 and the board-end plastic body 12 can be greatly reduced, which is conducive to reducing the overall design size of the electrical connector assembly.
[0054] It should also be emphasized here that the number of insertion holes required to be formed on the wire end plastic body 11 and the board end plastic body 21 is greatly reduced, which can relax the requirements on the corresponding plastic molding process and molding quality to a certain extent, which is conducive to further reducing the molding cost of the electrical connector assembly.
[0055] like Fig.11 As shown in the figure, the wire welding section 132 is in the form of a U-shaped groove, and a plurality of tin-containing grooves 1321 are arranged therein and are linearly evenly distributed along the direction in which the power supply harness is dragged. In this way, when the soldering operation is completed, the connection strength and connection stability between the power supply harness and the line-end power supply PIN 13 are greatly enhanced, thereby effectively reducing the occurrence of the power supply harness breaking away from the line-end power supply PIN 13 due to the drag force.
[0056] In order to ensure that the line-end power supply PIN 13 has good firmness relative to the line-end plastic body 11 after being assembled, and to avoid accidental disengagement due to the dragging force, as a further optimization of the above technical solution, as follows Fig.11 As shown in FIG, the contact function segment 131 is formed with an outwardly extending hooking protrusion 1311 and an inwardly extending elastic resistance arm 1312. Figure 7 , 8 As shown in FIG, the line end plastic body 11 is formed with a resistance increasing notch 112 that matches the inner extension elastic resistance arm 1312. When the line end power PIN 13 is assembled relative to the line end plastic body 11, the outer extension hooking protrusion 1311 penetrates into the circumferential side wall of the strip-shaped embedding notch 111, and the inner extension elastic resistance arm 1312 sinks into the resistance increasing notch 112 by itself (as shown in FIG. Fig.14 , 15 , as shown in 16).
[0057] Depend on Figure 5 , 7 As shown in , 8, it can be clearly seen that a process groove 113 is formed on the wire end plastic body 11 for inserting the contact functional section 131. In this way, under the premise that the total width of the wire end plastic body 11 remains unchanged, the opening size of the two opposite wire end power PINs 13 can be reduced to a certain extent, which lays a good foundation for further reducing the overall design size of the electrical connector assembly.
[0058] Furthermore, if Fig.11 , 14As shown in FIG. 15 , the contact function segment 131 undergoes a chamfering process to form an avoidance slope 1313. When the line-end power PIN 13 is assembled with respect to the line-end plastic body 11, the free end of the avoidance slope 1313 shall not go beyond the process sink groove 113. In this way, during the plug-in assembly process of the line-end electrical connector 1 and the board-end electrical connector 2, the board-end power PIN 23 can smoothly pass over the line-end power PIN 13, and finally can be elastically pressed on the line-end power PIN 13.
[0059] Furthermore, by Fig.24 It can also be clearly seen from the figure that the electrical conduction section 233 is composed of a plurality of electrical conduction fingers 2331. Adjacent electrical conduction fingers 2331 are separated by strip-shaped slits 2332. In this way, when the line-end electrical connector 1 and the board-end electrical connector 2 are plugged and assembled, each electrical conduction finger 2331 elastically presses against the line-end power supply PIN 13, and the pressing actions are independent of each other, which is conducive to achieving large-area contact and good conduction (such as Fig.25 , 26 , as shown in 27).
[0060] In addition, by Fig.18 , 21 As shown in FIGS. 22, a heat dissipation notch 215 is formed on the rear cover of the board-end plastic body 21. When the line-end electrical connector 1 and the board-end electrical connector 2 are plugged and assembled, in actual application, the heat generated during the electrical conduction between the line-end power PIN 13 and the board-end power PIN 23 can be diffused through the heat dissipation notch 215, further optimizing the heat dissipation performance of the electrical connector assembly.
[0061] In the actual application of the electrical connector assembly, the line-end electrical connector 1 is very likely to be mis-mated relative to the board-end electrical connector 2 (for example, the line-end electrical connector 1 is mis-mated 90° or 180° relative to the correct mating posture and inserted into the board-end electrical connector 2), which leads to an error in the mating relationship between the line-end electrical connector 1 and the board-end electrical connector 2, thereby causing poor product function or equipment damage. In view of this, as a further optimization of the above technical solution, as follows Figure 7 , 8As shown in , 20, 26, and 27, the circumferential side wall of the wire end plastic body 11 is formed with a first foolproof groove 114 and a second foolproof groove 115, and correspondingly, the side wall of the cavity 211 is formed with a first foolproof convex strip 212 adapted to the first foolproof groove 114 and a second foolproof convex strip 213 adapted to the second foolproof groove 115. And the design shape or / and design size of the first foolproof groove 114 and the second foolproof groove 115 are different. In this way, even if the staff makes an erroneous operation, the plugging of the wire end electrical connector 1 relative to the board end connector 2 cannot be completed, thereby effectively preventing the occurrence of the wrong plugging phenomenon of the connector assembly, ensuring that the signal or electrical energy can be correctly transmitted, and effectively avoiding the occurrence of product malfunction or equipment damage caused by the wrong plugging relationship between the wire end electrical connector 1 and the board end electrical connector 2.
[0062] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An electrical connector assembly, composed of a line-end electrical connector and a board-end electrical connector; the line-end electrical connector includes a line-end plastic body, a line-end signal PIN, and a line-end power PIN; the board-end electrical connector includes a board-end plastic body, a board-end signal PIN, and a board-end power PIN; the line-end signal PIN is connected to the board-end signal PIN to coordinate signal transmission, and the line-end power PIN is connected to the board-end power PIN to coordinate power transmission, characterized in that: The line-end power PIN uses the line-end plastic body as an assembly basis, and it is in contact with the circumferential side wall of the line-end plastic body; the board-end power PIN uses the board-end plastic body as an assembly basis; the board-end power PIN is a sheet metal bending part, which is sequentially connected by a circuit board welding section, an embedded fixing section and an electrical conduction section; when the board-end power PIN is in a state where it is assembled relative to the board-end plastic body, the embedded fixing section is locked in position due to force interaction with the cavity side wall of the board-end plastic body, and the electrical conduction section is hidden in the cavity of the board-end plastic body; when the line-end electrical connector is in a state where it is plugged relative to the board-end electrical connector, the electrical conduction section applies an elastic pressing force toward the line-end power PIN, and it itself is able to approach / elastically press against the cavity side wall of the board-end plastic body due to the reaction force.
2. The electrical connector assembly according to claim 1, characterized in that: The wire end plastic body is formed with a strip-shaped embedding notch for inserting the wire end power PIN; the wire end power PIN is a sheet metal bending part, which is connected by a contact function section and a wire welding section; when the wire end power PIN is assembled relative to the wire end plastic body, the contact function section passes through the strip-shaped embedding notch, and is locked in position due to force interaction with the circumferential side wall of the wire end plastic body, and the wire welding section is electrically connected to the power supply harness by soldering.
3. The electrical connector assembly according to claim 2, characterized in that: The wire welding section is in the form of a U-shaped groove, and is provided with a plurality of tin-containing grooves which are linearly evenly distributed along the dragging direction of the power supply wire harness.
4. The electrical connector assembly according to claim 2, characterized in that: The contact functional section is formed with an outward hook protrusion and an inward elastic resistance arm; the line end plastic body is formed with a resistance increasing depression or a resistance increasing notch that is compatible with the inward elastic resistance arm; when the line end power supply PIN is assembled relative to the line end plastic body, the outward hook protrusion penetrates into the circumferential side wall of the strip-shaped embedding notch, and the inward elastic resistance arm sinks into the resistance increasing depression or the resistance increasing notch by itself.
5. The electrical connector assembly according to claim 2, characterized in that: The plastic body of the wire end is formed with a process groove for placing the contact function section.
6. The electrical connector assembly according to claim 5, characterized in that: The contact function section is subjected to a chamfering process to form an avoidance slope; when the line end power PIN is assembled relative to the line end plastic body, the free end of the avoidance slope shall not go beyond the process sink groove.
7. The electrical connector assembly according to claim 1, characterized in that: The electrical conduction section is composed of a plurality of electrical conduction fingers; and adjacent electrical conduction fingers are separated by strip-shaped slits.
8. The electrical connector assembly according to claim 1, characterized in that: The number of the line-end power PINs and the board-end power PINs is consistent, both being 2; the line-end power PINs are symmetrically arranged on both sides of the line-end plastic body; the board-end power PINs are symmetrically arranged on both sides of the board-end plastic body cavity.
9. The electrical connector assembly according to any one of claims 1 to 8, characterized in that: A first fool-proofing groove and a second fool-proofing groove are formed on the circumferential side wall of the wire end plastic body; a first fool-proofing convex strip matched with the first fool-proofing groove and a second fool-proofing convex strip matched with the second fool-proofing groove are formed on the cavity side wall of the plate end plastic body; and the design shape and / or design size of the first fool-proofing groove and the second fool-proofing groove are different.