Electrical connectors

Abstract

An electrical connector includes a first insulating body, a second insulating body, and a plurality of first terminals and second terminals. The first insulating body defines a first direction and a second direction perpendicular to each other. The first insulating body includes a first mating portion located in front of the first direction and a receiving portion located behind the first direction. The first terminals include a first contact portion located in the first mating portion and a first pin located in the receiving portion. The second insulating body is fixed to the outside of the first insulating body and includes a second mating portion extending along the second direction. The second terminals include a second contact portion located in the second mating portion and a second pin extending towards the first insulating body and also located in the receiving portion. This connector has two mutually perpendicular mating interfaces, resulting in a stable structure and high production efficiency.

Description

[Technical Field]

[0001] This invention relates to an electrical connector. [Background Technology]

[0002] Chinese Utility Model Patent No. CN209730378U discloses a power connector, comprising: a charging base, a discharging plug, and a charging plug. The charging base includes: a base body, multiple spring pins disposed in a first inner cavity of the base body, a second inner cavity located on both sides of the first inner cavity, and a charging female terminal disposed in the second inner cavity. The discharging plug includes: a body, signal pins disposed on the top surface of the body corresponding to the distribution of the spring pins, a discharging terminal disposed on the top surface of the body and distributed on both sides of the spring pins, and a power pin disposed on the side of the body. The portion of the power pin embedded in the body is in electrical contact with the portion of the discharging terminal embedded in the body. The charging plug includes: a housing and a charging male terminal disposed at one end of the housing. This charging and discharging connector has both charging and discharging functions, and the discharging plug has a small volume through structural optimization design. In addition, the charging base of the above-mentioned charging and discharging connection has spring pins, which helps to provide cushioning during insertion and avoid damage. Multiple connector interfaces protrude forward; when multiple plugs are inserted, the plugs may interfere with each other due to volume limitations, making insertion impossible.

[0003] Therefore, it is desirable to design an improved electrical connector to overcome the above-mentioned defects. [Summary of the Invention]

[0004] The technical problem to be solved by the present invention is to provide an electrical connector having mutually perpendicular mating interfaces.

[0005] To solve the above problems, the present invention can adopt the following technical solution:

[0006] An electrical connector includes a first insulating body, a second insulating body, a plurality of first terminals and second terminals. The first insulating body defines a first direction and a second direction perpendicular to each other. The first insulating body includes a first mating portion located in front of the first direction and a receiving portion located behind the first direction. The first terminals include a first contact portion located in the first mating portion and a first pin located in the receiving portion. The second insulating body is fixed to the outside of the first insulating body and includes a second mating portion extending along the second direction. The second terminals include a second contact portion located in the second mating portion and a second pin extending toward the first insulating body and also located in the receiving portion.

[0007] To solve the above problems, the present invention can adopt the following technical solution:

[0008] A method for manufacturing an electrical connector includes the following steps:

[0009] (1) A second insulating body is provided, on which a second terminal is fixedly held; the second insulating body includes a second mating portion, and the second terminal includes a second contact portion and a second pin located in the second mating portion, the second contact portion extending along a second direction;

[0010] (2) Provide a plurality of first terminals, each first terminal including a first contact portion and a first pin, place the first terminal and the second insulating body at a predetermined position, wherein the first contact portion extends along a first direction, the first pin and the second pin extend in the same direction, and the second direction is perpendicular to the first direction;

[0011] (3) Insulating material injection molding is performed on the first terminal and the second insulating body to form the first insulating body. The first insulating body includes a first mating portion and a receiving portion extending along a first direction. The first contact portion is located in the first mating portion, and the first and second pins are located in the receiving portion.

[0012] Compared with the prior art, the present invention has two mutually perpendicular mating interfaces and two injection molding processes, which have the advantages of high production efficiency, stable quality and high production yield. [Attached Image Description]

[0013] Figure 1 This is a perspective view of the electrical connector of the present invention.

[0014] Figure 2 yes Figure 1 The diagram shows a three-dimensional view of the electrical connector from different angles.

[0015] Figure 3 yes Figure 2 The diagram shows a three-dimensional view of the electrical connector from different angles.

[0016] Figure 4 yes Figure 1 The diagram shows a partial exploded view of the electrical connector.

[0017] Figure 5 yes Figure 4 The exploded view is shown from another angle.

[0018] Figure 6 yes Figure 1 The diagram shows the complete exploded view of the electrical connector.

[0019] Figure 7 yes Figure 6 A perspective view of the second insulator and the second terminal in the electrical connector shown.

[0020] Figure 8 yes Figure 6 The exploded view is shown from another angle.

[0021] Figure 9 yes Figure 8 A perspective view of the second insulator and the second terminal in the electrical connector shown.

[0022] Figure 10 yes Figure 1 The cross-sectional view of the electrical connector shown along the dashed line AA.

[0023] Figure 11 yes Figure 1 A cross-sectional view of the electrical connector shown along the dashed line BB.

[0024] Figure 12 yes Figure 3 A cross-sectional view of the electrical connector shown along the dashed line CC.

[0025] [Component Symbol Explanation]

[0026] Electrical connector 100 Terminal housing 222

[0027] First direction X interference section 23

[0028] Second direction Y-hook 231

[0029] Third direction Z insulating block 232

[0030] First insulating body 1, interference groove 233

[0031] First docking part 11 Insulator 3

[0032] Containment cavity 110, docking ring 31

[0033] Receiving section 12, vertical block 32

[0034] Receiving cavity 120, connecting bar 33

[0035] Base 13 First terminals 4, 4P, 4S

[0036] Mounting slot 130 First contact part 401

[0037] Second insulating body 2 First fixing part 402

[0038] Second docking section 21 First joint 403

[0039] First straight segment 211; Second terminals 5, 5P, 5S

[0040] Diagonal segment 212 Flat section 51

[0041] Second straight segment 213 Second contact part 501

[0042] Additional segment 214, second fixing part 502

[0043] Connection part 22, second pin 503

[0044] Support part 221

[0045] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Specific Embodiments

[0046] Refer to Figures 1 to 3 As shown, the present invention discloses an electrical connector 100, which defines a first direction X (front - rear direction), a second direction Y (up - down direction), and a third direction Z (left - right direction) that are perpendicular to each other. Two types of docking heads can be inserted along the first direction X and the second direction Y.

[0047] Refer to Figures 1 to 3 As shown, the electrical connector 100 includes a first insulating body 1, a first terminal 4 and an insulator 3 fixed within the first insulating body. The above - mentioned first insulating body 1, first terminal 4 and insulator 3 constitute an output end, which can be docked along the front - rear direction X to output power and signals; the electrical connector 100 also includes a second insulating body 2 and a second terminal 5. The above - mentioned second insulating body 2 and second terminal 5 constitute an input end, which can be docked along the up - down direction Y to input power and signals. The first and second terminals are connected by a circuit board (not shown) to achieve electrical transmission between the two.

[0048] Refer to Figures 4 to 6 As shown, the first insulating body 1 includes a base 13, a first docking part 11 located in front of the first direction X and a receiving part 12 located behind the first direction. The first docking part 11 is a receiving cavity 110 formed by surrounding with an annular wall, and the receiving part 12 is a cavity structure formed by surrounding with an annular wall. Specifically, the first insulating body 1 includes two annular walls 110 extending along the first direction X. The two annular walls 110 are spaced apart from each other in the third direction Z. Each annular wall 110 penetrates forward, and the receiving part 12 is a receiving cavity 120 formed by surrounding with a square annular wall.

[0049] The first terminal 4 has a needle-like structure, including a first contact portion 401 located in the first mating portion 11 and a first pin 403 located in the receiving portion 12. Each annular wall 110 contains a set of first contact portions 401 of the first terminal 4. In this embodiment, each set of first terminals 4 includes four terminals: a power terminal 4P with a larger diameter and a signal terminal 4S with a smaller diameter. The power terminal 4P transmits a larger current, and the signal terminal 4S transmits a smaller current. The four terminals are arranged in two rows and two columns, with terminals of the same type diagonally distributed. The diameter of the first contact portion 401 of each first terminal is slightly larger than its first pin 403, and the first pins 403 of all first terminals are received in the receiving cavity 120. The first terminal 4 includes a first fixing portion 402 connecting the first contact portion and the first pin, and the first fixing portion 402 includes a section of annular serrated structure.

[0050] Continue to participate Figures 6 to 9 The second insulating body 2 is fixed to the outside of the first insulating body 1. The first insulating body 1 and the second insulating body 2 are formed by injection molding one of them into the other. In this embodiment, the first insulating body 1 is injection molded into the second insulating body 2, and the first insulating body forms a base 13 and a mounting groove 130 to fix the second insulating body, thereby strengthening the overall strength of the electrical connector. The second insulating body 2 includes a second mating portion 21 extending along the second direction Y. The second mating portion has a flat plate structure. Viewed from the second direction Y, the flat plate of the second mating portion 21 includes a first straight segment 211, a diagonal segment 212, and a second straight segment 213 connected in sequence; the second mating portion 21 also includes an additional segment 214 extending from the diagonal segment 212. The second mating portion 21, which has a foolproof property, can prevent incorrect mating between electrical connectors.

[0051] The second insulating body 2 includes a connecting portion 22 and an interference portion 23 located below the second mating portion 21. The second mating portion 21 extends from the connecting portion 22 along the second direction Y. The connecting portion 22 includes a circular support portion 221 and a terminal receiving portion 222 that surrounds a terminal groove forming a receiving plate portion 51 of the second terminal. The connecting portion 22 extends into the first insulating body 1 along the second direction Y for a certain distance. Figure 11 and Figure 12 Clearly visible. The interference portion 23, due to injection molding and fixation within the first insulating body 1, includes a pair of L-shaped hooks 231 and an insulating block 232 located in the middle of the hooks. The insulating block 232 has a through groove 233 extending along the first direction. Figure 9 As shown, the first insulator 1 is injection molded onto the second insulating body 2, thereby filling the space around the hook 231 and the through groove 233, achieving full cooperation between the base 13 of the first insulating body 1 and the interference part 23, and strengthening the connection strength between the two.

[0052] The second terminal 5 is installed in the second insulating body 2 and fixed within the first insulating body 1. The second terminal includes a second contact portion 501 located in the second mating portion 21 and a second pin 503 extending into the first insulating body 1 and also located in the receiving cavity 120. The second contact portion 501 is a flat plate portion 51 perpendicular to the second mating portion 21. At least one second contact portion 501 is provided on each of the two sides of the flat plate of the second mating portion 21, and the second contact portions on both sides are perpendicular to the flat plate 21 and aligned with each other in the direction perpendicular to the plate. One side of each of the second contact portions 501 on both sides is embedded within the flat plate, and the two second contact portions are arranged in a large-to-small ratio. Two second contact portions 501 are provided on each of the two sides of the flat plate 21, and the second contact portions on the same side of the flat plate are arranged in a large-to-small ratio. Specifically, four second terminals 5 are fixed within the second insulating body 2, consisting of two power terminals 5P for the two larger flat plate portions 51 and two signal terminals 5S for the two smaller flat plate portions 51. The power terminals 5P transmit a larger current, and the signal terminals 5S transmit a smaller current. One power terminal 5P and one signal terminal 5S are arranged on both sides of the first straight segment 211, and the remaining power terminal 5P and one signal terminal 5S are arranged on both sides of the second straight segment 213. On the same side of the plate 21, one power terminal 5P and one signal terminal 5S are arranged. The additional segment 214 is located between the two second contact portions 501 on the same side of the plate 21 and is parallel to the second contact portions.

[0053] In this embodiment, the second docking portion 21 and four flat second terminals 5 constitute the input terminal, which can input power and signals. The first docking portion 11 and eight pin-shaped first terminals 4 constitute the output terminal, which can output power and signals. Each second power terminal 5P is connected to one first power terminal 4P in each first docking portion 11 through a circuit board (not shown). That is, one second power terminal 5P connects to two first power terminals 4P in different receiving cavities 110. Therefore, two second power terminals 5P, together with four first power terminals 4P in two receiving cavities, constitute two sets of power transmission. Similarly, each second signal terminal 5S is connected to one first signal terminal 4S in each first docking portion 11 through a circuit board (not shown). That is, one second signal terminal 5S connects to two first signal terminals 4S in different receiving cavities 110. Therefore, two second signal terminals 5S, together with four first signal terminals 4S in two receiving cavities, constitute two sets of signal transmission. In this way, the input and output of power and signals are realized.

[0054] In this embodiment, each second terminal has a stepped portion 510 embedded in the plate on the side near the plate 21, and a barbed structure 511 on the side away from the plate 21. The plate portion 51 includes contact portions 501 fixed on both sides of the second mating portion 21 and a plate structure fixed in the terminal receiving portion 222. The second contact portions 501 on both sides of the same straight segment of the first mating portion 21 are aligned with each other in a direction perpendicular to the plate, while the second leads 503 are staggered. The second fixing portion 502 connects the plate portion 51 and the second leads 503 and is fixed in the first insulating body 1. The second leads 503 are formed by bending the second fixing portion 502 once or twice, so that the second leads 503 of the second terminals on both sides of the same straight segment 211 / 213 are staggered with each other in the first direction X. The leads 403 and 503 of all the first and second terminals are arranged in parallel in the receiving cavity 120, and the first leads 403 are arranged on both sides of the second leads 503.

[0055] The insulator 3 is injection-molded into the first insulating body 1. The insulator 3 includes a mating ring 31 that adheres to the inner wall of the first mating portion 21. The mating ring extends forward without exceeding the front of the first contact portion 401 and abuts against the rear wall of the receiving cavity 120. The insulator 3 includes a vertical block 32 located behind the mating ring 31 and integrated into the first insulating body 1. Two symmetrical vertical blocks extend behind each mating ring 31. The insulator 3 includes two mating rings 31 located within the ring wall and a connecting strip 33 connecting the mating rings. The connecting strip is located within the first insulating body. The insulator 3 includes a pair of vertical blocks 32 located behind the mating rings. The connecting strip 33 connects the bottoms of the two vertical blocks located in the middle position. Figure 10 and Figure 12 As shown. The mating ring 31 can strengthen the ring wall surrounding the first mating part 11 and enhance the insertion and extraction force; the vertical part 32 and the connecting strip 33 are both integrated into the base 13, which can ensure that the mating ring 31 will not detach from the first insulating body 1 during the insertion and extraction test.

[0056] This invention also includes a method for manufacturing a connector, specifically comprising the following steps:

[0057] (1) A second insulating body 2 is provided, and a second terminal 5 is fixedly held on the second insulating body; the second insulating body includes a second mating portion 21, and the second terminal 5 includes a second contact portion 501 and a second pin 503 located in the second mating portion, and the second contact portion extends along the second direction Y.

[0058] (2) Provide a plurality of first terminals 4, each first terminal including a first contact portion 401 and a first pin 403, and place the first terminal 4 and the second insulating body 2 in a predetermined position (in a molding die), wherein the first contact portion 401 extends along a first direction, the first pin 403 and the second pin 503 extend in the same direction, and the second direction Y is perpendicular to the first direction X.

[0059] (3) Insulating material injection molding is performed on the first terminal 4 and the second insulating body 2 to form the first insulating body 1. The first insulating body 1 includes a first mating portion 11 and a receiving portion 12 extending along the first direction. The first contact portion 401 is located in the first mating portion 11, and the first and second pins 403 and 503 are located in the receiving portion 12. If the second terminal 5 is directly inserted into the molding mold, the terminal will be skewed due to structural problems, and there is a risk that the molding mold cannot be closed and there will be scraping. However, if the second terminal 5 is inserted into the second insulating body 2 and then inserted into the mold as an integral insert, this problem can be avoided.

[0060] (4) An insulating material is injection molded again in the first insulating body 1 to form an insulating body 3, which is attached to the inner wall of the first docking part 11.

[0061] The first and second insulating bodies and the insulators mentioned above are all injection molded from insulating materials, while the first and second terminals are stamped from metal materials. The first insulating body is integrally injection molded onto the second insulating body 2 and the terminal 5, and the insulator is injection molded a second time within the first insulating body. This two-stage injection molding process has advantages such as high production efficiency, stable quality, and high production yield.

[0062] The above embodiments are preferred embodiments of the present invention, but not all embodiments. Any equivalent changes to the technical solutions of the present invention made by those skilled in the art through reading this specification are covered by the claims of the present invention.

Claims

1. An electrical connector comprising a first insulating body, a second insulating body, a plurality of first terminals and second terminals, the first insulating body defining a first direction and a second direction perpendicular to each other, the first insulating body comprising a first mating portion located in front of the first direction and a receiving portion located in back of the first direction, the first terminals comprising a first contact portion located in the first mating portion and a first leg portion located in the receiving portion; characterized in that: The second insulating body is fixed to the outside of the first insulating body and includes a second mating portion extending along the second direction. The second terminal includes a second contact portion located at the second mating portion and a second pin extending toward the first insulating body and also located at the receiving portion. The second mating portion extends along the second direction, the first mating portion extends forward along the first direction, and the second pin and the first pin extend backward along the first direction and are fixed together to the receiving portion. The first direction is perpendicular to the second direction.

2. The electrical connector as described in claim 1, characterized in that: The first docking portion is a receiving cavity formed by a ring wall, and the first contact portion is a needle-like structure; the second docking portion is a flat plate structure, and the second contact portion is a flat plate portion perpendicular to the flat plate structure; the receiving portion is a cavity structure formed by a ring wall.

3. The electrical connector as described in claim 2, characterized in that: The first insulating body and the second insulating body are formed by injection molding plastic from one of them into the other insulating body.

4. The electrical connector as described in claim 1, characterized in that: The first insulating body further defines a third direction perpendicular to the first and second directions. The first insulating body includes two annular walls extending along the first direction. The two annular walls are spaced apart from each other in the third direction. A set of first contacts of the first terminals are accommodated inside each annular wall.

5. The electrical connector as described in claim 1, characterized in that: The second mating portion is a flat plate extending along a second direction. At least one second contact portion is provided on each of the two sides of the flat plate. The second contact portions on both sides are perpendicular to the flat plate and aligned with each other in the direction perpendicular to the flat plate.

6. The electrical connector as described in claim 5, characterized in that: One side of the second contact portion on both sides is embedded in the flat plate, and the two second contact portions are arranged in a large and a small configuration.

7. The electrical connector as claimed in claim 6, characterized in that: The two sides of the plate are respectively provided with two second contact portions, and the second contact portions on the same side of the plate are arranged in a large and a small manner.

8. The electrical connector as claimed in claim 7, characterized in that: Viewed from a first direction, the plate of the second mating portion includes a straight line segment, an oblique line segment, and a straight line segment connected in sequence, with the second contact portion located on both sides of the straight line segment; the second mating portion also includes an additional segment extending from the oblique line segment, the additional segment being parallel to the second contact portion of the second terminal.

9. A method for manufacturing an electrical connector, comprising the following steps: (1) A second insulating body is provided, on which a second terminal is fixed; the second insulating body includes a second mating portion, the second terminal includes a second contact portion and a second pin located in the second mating portion, the second contact portion extending in a second direction; (2) Provide a plurality of first terminals, each first terminal including a first contact portion and a first pin, and place the first terminal and the second insulating body at a predetermined position, wherein the first contact portion extends along a first direction, the first pin and the second pin extend in the same direction, and the second direction is perpendicular to the first direction; (3) Insulating material injection molding is performed on the first terminal and the second insulating body to form the first insulating body. The first insulating body includes a first mating portion and a receiving portion extending along a first direction. The first contact portion is located in the first mating portion, and the first and second pins are located in the receiving portion.

10. The method for manufacturing an electrical connector as described in claim 9, characterized in that: An insulating material is injection molded again within the first insulating body to form an insulator, which is then attached to the inner wall of the first mating portion.

Images