Electrical connector structure

By setting the second and fourth signal connection groups on the control board, the upper and lower rows of signal terminals of the Type-C electrical connector can be aligned and soldered on the same surface, which solves the problem of cumbersome soldering in the prior art and improves production efficiency.

CN122158975APending Publication Date: 2026-06-05DONGGUAN KANG XIANG ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN KANG XIANG ELECTRONICS CO LTD
Filing Date
2024-12-04
Publication Date
2026-06-05

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  • Figure CN122158975A_ABST
    Figure CN122158975A_ABST
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Abstract

The application discloses an electric connector structure, which comprises a connector joint and a control substrate. One end of the control substrate is provided with a connector connecting area, and the other end is provided with a signal line connecting area. The control substrate is provided with first and third signal connecting groups on the front and back surfaces of the signal line connecting area. The control substrate is provided with second and fourth signal connecting groups on the front surface of the connector connecting area. The first and second signal connecting groups and the third and fourth signal connecting groups are electrically connected in a wiring mode. The welding ends of the first and second connecting terminal groups arranged in the upper and lower rows of the connector joint are electrically connected with the second and fourth signal connecting groups on the front surface of the connector connecting area, so that the first and second connecting terminal groups arranged in the upper and lower rows of the connector joint are electrically connected with the first and third signal connecting groups on the front and back surfaces of the signal line connecting area.
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Description

Technical Field

[0001] This invention relates to the technical field of electrical connector structures, and in particular to an electrical connector structure in which the second and fourth signal connection groups provided on the front side of the connector connection area of ​​a control substrate are electrically connected to the first and third signal connection groups provided on the front and back sides of the signal line connection area. Background Technology

[0002] In recent years, the Type-C standard electrical connector has been developed. This type of electrical connector has no insertion direction restriction, so users no longer need to distinguish between the front and back of the USB. That is, the Type-C electrical connector can be inserted in either direction and provides relatively high transmission efficiency. It also has many advantages such as small size, so it is widely used in electronic devices.

[0003] A Type-C electrical connector mainly includes multiple signal terminals in upper and lower rows and a control circuit board. The control circuit board has an electrical connector soldering end at one end that connects to the electrical connector, and a signal line soldering end at the other end that connects to the signal transmission line. Multiple electrical connector soldering points are provided on the front and back of the electrical connector soldering end, and multiple signal line soldering points are provided on the front and back of the signal line soldering end. The multiple electrical connector soldering points on the front of the control circuit board are connected to the multiple signal line soldering points, and the multiple electrical connector soldering points on the back of the control circuit board are connected to the multiple signal line soldering points, so that the multiple electrical connector soldering points on the front and back of the control circuit board are located on the top and bottom surfaces, respectively.

[0004] When soldering Type-C electrical connectors to the control circuit board, the first step is to align the upper row of multiple signal terminals with the corresponding soldering points of the electrical connectors on the front of the control circuit board before soldering. Then, in the second step, the lower row of multiple signal terminals must be aligned with the corresponding soldering points of the electrical connectors on the back of the control circuit board before soldering. This process is cumbersome and reduces production efficiency.

[0005] Therefore, the problem that this invention aims to solve is to provide a way to align multiple signal terminals of a Type-C electrical connector on the same surface of the control circuit board before soldering them, thereby simplifying the manufacturing process. Summary of the Invention

[0006] The main objective of this invention is to provide an electrical connector structure.

[0007] This invention provides an electrical connector structure, including a connector header and a control board:

[0008] The connector includes a first connection terminal group and a second connection terminal group. The first connection terminal group includes multiple first connection terminals, one end of which is provided with a first signal connection terminal and the other end of which is provided with a first soldering terminal. The second connection terminal group includes multiple second connection terminals, one end of which is provided with a second signal connection terminal and the other end of which is provided with a second soldering terminal.

[0009] The control substrate is electrically connected to the connector. One end of the control substrate has a connector connection area, and the other end has a signal line connection area. One surface of the control substrate has a first soldering surface, and the other surface has a second soldering surface. The control substrate has first and third signal connection groups in the signal line connection areas of the first and second soldering surfaces. The control substrate has second and fourth signal contact groups in the connector connection area of ​​the first soldering surface. The second signal contact group on the first soldering surface of the control substrate is used to electrically connect to multiple first soldering ends of the first connection terminal group, and the fourth signal contact group on the first soldering surface of the control substrate is used to electrically connect to multiple second soldering ends of the second connection terminal group. The first signal connection group has contacts 1 to 11, wherein contacts 1 and 11 are ground ports, contacts 2, 3, 9, and 10 are signal ports, contacts 4 and 8 are power ports, and contacts 1 to 11 are ground ports. Contacts 5, 6, and 7 are USB 2.0 signal ports; the third signal connection group has contacts 1 to 11, wherein contacts 1 and 11 are ground ports, contacts 2, 3, 5, 9, and 10 are signal ports, contacts 4 and 8 are power ports, contact 6 is a chip signal connection port, and contact 7 is a jumper signal port; the second signal connection group has contacts 1 to 12, wherein contacts 1 and 12 are ground ports, contacts 2, 3, 10, and 11 are signal ports, contacts 4 and 9 are power ports, contacts 5, 6, and 7 are USB 2.0 signal ports, and contact 8 is a jumper signal port; the fourth signal connection group has contacts 1 to 12, wherein contacts 1 and 12 are ground ports, contacts 2, 3, 5, 10, and 11 are signal ports, contacts 4 and 9 are power ports, and contact 8 is a chip signal connection port.

[0010] Therefore, by controlling the connector connection area of ​​the first welding surface of the substrate to be provided with the second and fourth signal connection groups respectively, the second and fourth signal connection groups are electrically connected to the first and third signal connection groups by means of wiring, so that the first and second welding ends of the first and second connection terminal groups in the upper and lower rows of the connector connector only need to be electrically connected to the second and fourth signal connection groups in the connector connection area of ​​the first welding surface respectively, that is, the first and second connection terminal groups in the upper and lower rows of the connector connector are electrically connected to the first and third signal connection groups in the signal line connection area of ​​the first and second welding surfaces.

[0011] In this way, the multiple first and second connecting terminals of the connector joint only need to be aligned on the same first soldering surface of the control board before soldering, thus simplifying the manufacturing process. Attached Figure Description

[0012] Figure 1 This is a perspective view of a combined embodiment of the electrical connector structure of the present invention.

[0013] Figure 2 This is a partially exploded embodiment of the electrical connector structure of the present invention.

[0014] Figure 3 This is a front view schematic diagram of the control substrate of the electrical connector structure of the present invention.

[0015] Figure 4 This is a schematic diagram of the bottom view of the control substrate of the electrical connector structure of the present invention.

[0016] Figure 5 This is a schematic diagram of the front wiring embodiment of the control substrate of the electrical connector structure of the present invention.

[0017] Figure 6 This is a schematic diagram of the bottom surface wiring embodiment of the control substrate of the electrical connector structure of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1-Connector connector; 11-First connection terminal group; 111-First connection terminal; 112-First signal connection terminal; 113-First soldering terminal; 12-Second connection terminal group; 121-Second connection terminal; 122-Second signal connection terminal; 123-Second soldering terminal; 13-Fixing pin; 2-Control board; 21-Connector connection area; 22-Signal line connection area; 23-First soldering surface; 24-Second soldering surface; 25-Positioning hole; 26-Protrusion; 3-First signal connection group; 31~311-Contacts 1~11; 4-Second signal contact group; 41~412-Contacts 1~12; 5-Third signal contact group; 51~511-Contacts 1~11; 6-Fourth signal contact group; 61~612-Contacts 1~12; 7-Chip soldering area; 8-Positioning soldering area. Detailed Implementation

[0019] The following detailed description of various embodiments, with reference to the accompanying drawings, is provided. However, these embodiments are merely illustrative and do not limit the scope of protection intended for this invention.

[0020] Please refer to the following: Figures 1 to 6 As shown, the present invention provides an electrical connector structure, including a connector joint 1 and a control substrate 2.

[0021] The connector 1 includes a first connection terminal group 11 and a second connection terminal group 12. The first connection terminal group 11 includes multiple first connection terminals 111, one end of which is provided with a first signal connection terminal 112 and the other end with a first soldering terminal 113. The second connection terminal group 12 includes multiple second connection terminals 121, one end of which is provided with a second signal connection terminal 122 and the other end with a second soldering terminal 123. The first connection terminal group 11 and the second connection terminal group 12 can be arranged in the upper and lower rows inside the connector 1. The metal shell outside the connector 1 is provided with at least two fixed pins 13.

[0022] The control substrate 2 has a connector connection area 21 at one end and a signal line connection area 22 at the other end. The control substrate 2 has a first soldering surface 23 on one surface (e.g., the front surface) and a second soldering surface 24 on the other surface (e.g., the bottom surface). The control substrate 2 has a first signal connection group 3 in the signal line connection area 22 of the first soldering surface 23 and a third signal connection group 5 in the signal line connection area 22 of the second soldering surface 24. The control substrate 2 has a second signal contact group 4 and a fourth signal contact group 6 in the connector connection area 21 of the first soldering surface 23. The second signal contact group 4 of the first soldering surface 23 of the control substrate 2 is used to electrically connect with a plurality of first soldering ends 113 of the first connection terminal group 11, and the fourth signal contact group 6 of the first soldering surface 23 of the control substrate 2 is used to electrically connect with a plurality of second soldering ends 123 of the second connection terminal group 12.

[0023] The first signal connection group 3 includes a first contact 31 to an eleventh contact 311 arranged in sequence, wherein: the first contact 31 and the eleventh contact 311 are ground ports, the second contact 32, the third contact 33, the ninth contact 39 and the tenth contact 310 are signal ports, the fourth contact 34 and the eighth contact 38 are power ports, and the fifth contact 35, the sixth contact 36 and the seventh contact 37 are USB 2.0 signal ports; that is, the first contact 31 to the eleventh contact 311 of the first signal connection group 3 are, in sequence, a ground port, a signal port, a signal port, a power port, a USB 2.0 signal port, a USB 2.0 signal port, a USB 2.0 signal port, a power port, a signal port, a signal port, and a ground port.

[0024] The third signal connection group 5 includes contacts 1 to 11, arranged in sequence: contacts 1 and 11 are ground ports; contacts 2, 3, 55, 9, and 10 are signal ports; contacts 4 and 8 are power ports; contact 6 is a chip signal connection port; and contact 7 is a jumper signal port. In other words, contacts 1 to 11, 511 of the third signal connection group 5 are, in sequence, ground port, signal port, signal port, power port, signal port, chip signal connection port, jumper signal port, power port, signal port, signal port, and ground port. The positions of contacts 1 to 11, 511 of the third signal connection group 5 correspond to those of contacts 1 to 11, 311 of the first signal connection group 3.

[0025] The second signal connection group 4 includes a first contact 41 to a second contact 412 arranged in sequence, wherein: the first contact 41 and the second contact 412 are ground ports, the second contact 42, the third contact 43, the tenth contact 410 and the eleventh contact 411 are signal ports, the fourth contact 44 and the ninth contact 49 are power ports, the fifth contact 45, the sixth contact 46 and the seventh contact 47 are USB 2.0 signal ports, and the eighth contact 48 is a jumper signal port; that is, the first contact 41 to the second contact 412 of the second signal connection group 4 are, in sequence, a ground port, a signal port, a signal port, a power port, a USB 2.0 signal port, a USB 2.0 signal port, a jumper signal port, a power port, a signal port, a signal port, a signal port, and a ground port.

[0026] The fourth signal connection group 6 includes contacts 1 to 12 arranged in sequence, wherein: contacts 1 and 12 are ground ports, contacts 2, 3, 5, 65, 10, and 11 are signal ports, contacts 4 and 9 are power ports, contacts 8 are chip signal connection ports, and contacts 66 and 7 are unused connection ports; that is, contacts 1 to 12 of the fourth signal connection group 6 are, in sequence, ground port, signal port power port, signal port, unused connection port, unused connection port, chip signal connection port, power port, signal port, signal port, and ground port.

[0027] The 8th contact 48 (jumper signal port) of the second signal connection group 4 is electrically connected to the 7th contact 57 (jumper signal port) of the third signal connection group 5.

[0028] The first contact 31 and the eleventh contact 311 (grounding port) of the first signal connection group 3, the first contact 41 and the twelfth contact 412 (grounding port) of the second signal connection group 4, the first contact 51 and the eleventh contact 511 (grounding port) of the third signal connection group 5, and the first contact 61 and the twelfth contact 612 (grounding port) of the fourth signal connection group 6 are all grounding ports and are electrically connected to each other.

[0029] The fourth and eighth contacts 38 (power ports) of the first signal connection group 3, the fourth and ninth contacts 49 (power ports) of the second signal connection group 4, the fourth and eighth contacts 58 (power ports) of the third signal connection group 5, and the fourth and ninth contacts 69 (power ports) of the fourth signal connection group 6 are all power ports and are electrically connected to each other.

[0030] The first contact 31 to the seventh contact 37 of the first signal connection group 3 are electrically connected to the first contact 41 to the seventh contact 47 of the second signal connection group 4; the eighth contact 38 to the eleventh contact 311 of the first signal connection group 3 are electrically connected to the ninth contact 49 to the twelfth contact 412 of the second signal connection group 4; thus enabling the first signal connection group 3 and the second signal connection group 4 to be electrically connected to each other.

[0031] The first contact 51 to the fifth contact 55 of the third signal connection group 5 are electrically connected to the first contact 61 to the fifth contact 65 of the fourth signal connection group 6; the eighth contact 58 to the eleventh contact 511 of the third signal connection group 5 are electrically connected to the ninth contact 69 to the twelfth contact 612 of the fourth signal connection group 6; thus enabling the third signal connection group 5 and the fourth signal connection group 6 to be electrically connected to each other.

[0032] The control substrate 2 has a chip welding area 7 on the second welding surface 24, and the sixth contact 56 of the third signal connection group 5 and the eighth contact 68 of the fourth signal connection group 6 are electrically connected to the chip welding area 7.

[0033] The control substrate 2 has at least two protrusions 26 protruding from the edge of the signal line connection area 22, and the front and back surfaces of the protrusions 26 are respectively provided with a positioning soldering area 8.

[0034] The first contact 61 to the twelfth contact 612 of the fourth signal contact group 6 are welding holes that penetrate the first welding surface 23 and the second welding surface 24.

[0035] The control board 2 is provided with a positioning hole 25 on each side of the connector connection area 21. The two positioning holes 25 are electrically connected to the grounding ports of the first contact 31 and the 11th contact 311 of the first signal connection group 3, the first contact 41 and the 12th contact 412 of the second signal connection group 4, the first contact 51 and the 11th contact 511 of the third signal connection group 5, and the first contact 61 and the 12th contact 612 of the fourth signal connection group 6. The two fixed pins 13 of the metal shell of the connector 1 are electrically connected and fixed to the two positioning holes 25 respectively, so that the metal shell of the connector 1 also has a grounding function.

[0036] The first signal connection group 3 and the third signal connection group 5 of the signal line connection area 22 of the control substrate 2 are electrically connected to a preset signal transmission line.

[0037] In summary, by providing a second signal connection group 4 and a fourth signal connection group 6 on the connector connection area 21 of the first welding surface 23 of the control substrate 2, the second signal connection group 4 and the fourth signal connection group 6 are electrically connected to the first signal connection group 3 and the third signal connection group 4 respectively through wiring. This allows the first welding ends 113 and 123 of the upper and lower rows of first connection terminal groups 11 and second connection terminal groups 12 of the connector connector 1 to be electrically connected to the second signal connection group 4 and the fourth signal connection group 6 respectively on the connector connection area 21 of the first welding surface 23. This achieves electrical conduction between the upper and lower rows of first connection terminal groups 11 and second connection terminal groups 12 of the connector connector 1 and the first signal connection group 3 and the third signal connection group 4 of the signal line connection area 22 of the first welding surface 23 and the second welding surface 24. Thus, the multiple first connection terminals 111 and second connection terminals 121 of the upper and lower rows of the connector connector 1 only need to be aligned on the same first welding surface 23 of the control substrate 2 before welding, thereby simplifying the manufacturing process.

[0038] However, the above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent variations and modifications made in accordance with the claims and specification of the present invention are still within the scope of the invention. Furthermore, no embodiment or claim of the present invention needs to achieve all the objectives, advantages, or features provided by the present invention. In addition, the abstract and headings are merely for assisting in patent document searches and are not intended to limit the scope of protection of the present invention. Furthermore, the terms "first," "second," etc., mentioned in the specification or claims of the present invention are only used to name elements or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

Claims

1. An electrical connector structure, characterized in that, include: A connector assembly includes a first connection terminal group and a second connection terminal group. The first connection terminal group includes multiple first connection terminals, each with a first signal connection terminal at one end and a first solder terminal at the other end. The second connection terminal group includes multiple second connection terminals, each with a second signal connection terminal at one end and a second solder terminal at the other end. A control substrate is electrically connected to the connector. The control substrate has a connector connection area at one end and a signal line connection area at the other end. The control substrate has a first soldering surface on one surface and a second soldering surface on the other surface. The control substrate has a first signal connection group in the signal line connection area of ​​the first soldering surface and a third signal connection group in the signal line connection area of ​​the second soldering surface. The control substrate has a second signal contact group and a fourth signal contact group in the connector connection area of ​​the first soldering surface. The second signal contact group of the control substrate is used to electrically connect to a plurality of the first soldering ends of the first connection terminal group, and the fourth signal contact group of the control substrate is used to electrically connect to a plurality of the second soldering ends of the second connection terminal group. The first signal connection group has 1 to 11 contacts, of which contacts 1 and 11 are ground ports, contacts 2, 3, 9 and 10 are signal ports, contacts 4 and 8 are power ports, and contacts 5, 6 and 7 are USB 2.0 signal ports; The third signal connection group has 1 to 11 contacts, of which 1 and 11 are ground ports, 2, 3, 5, 9 and 10 are signal ports, 4 and 8 are power ports, 6 is a chip signal connection port and 7 is a jumper signal port. The second signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 10 and 11 are signal ports, contacts 4 and 9 are power ports, contacts 5, 6 and 7 are USB 2.0 signal ports, and contact 8 is a jumper signal port; The fourth signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 5, 10 and 11 are signal ports, contacts 4 and 9 are power ports, and contact 8 is a chip signal connection port.

2. An electrical connector structure, characterized in that, include: A connector assembly includes a first connection terminal group and a second connection terminal group. The first connection terminal group includes multiple first connection terminals, one end of which is provided with a first signal connection terminal and the other end of which is provided with a first solder terminal. The second connection terminal group includes multiple second connection terminals, one end of which is provided with a second signal connection terminal and the other end of which is provided with a second solder terminal. A control substrate is electrically connected to the connector. The control substrate has a connector connection area at one end and a signal line connection area at the other end. The control substrate has a first soldering surface on one surface and a second soldering surface on the other surface. The control substrate has a first signal connection group in the signal line connection area of ​​the first soldering surface and a third signal connection group in the signal line connection area of ​​the second soldering surface. The control substrate has a second signal contact group and a fourth signal contact group in the connector connection area of ​​the first soldering surface. The second signal contact group of the control substrate is used to electrically connect to a plurality of the first soldering ends of the first connection terminal group, and the fourth signal contact group of the control substrate is used to electrically connect to a plurality of the second soldering ends of the second connection terminal group. The first signal connection group has 1 to 11 contacts, of which contacts 1 and 11 are ground ports, contacts 2, 3, 9 and 10 are signal ports, contacts 4 and 8 are power ports, and contacts 5, 6 and 7 are USB 2.0 signal ports; The third signal connection group has 1 to 11 contacts, of which 1 and 11 are ground ports, 2, 3, 5, 9 and 10 are signal ports, 4 and 8 are power ports, 6 is a chip signal connection port and 7 is a jumper signal port. The second signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 10 and 11 are signal ports, contacts 4 and 9 are power ports, contacts 5, 6 and 7 are USB 2.0 signal ports, and contact 8 is a jumper signal port; The fourth signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 5, 10 and 11 are signal ports, contacts 4 and 9 are power ports, and contact 8 is a chip signal connection port; The first signal connection group is electrically connected to the second signal contact group, and the third signal connection group is electrically connected to the fourth signal contact group.

3. An electrical connector structure, characterized in that, include: A connector assembly includes a first connection terminal group and a second connection terminal group. The first connection terminal group includes multiple first connection terminals, one end of which is provided with a first signal connection terminal and the other end of which is provided with a first solder terminal. The second connection terminal group includes multiple second connection terminals, one end of which is provided with a second signal connection terminal and the other end of which is provided with a second solder terminal. A control substrate is electrically connected to the connector. The control substrate has a connector connection area at one end and a signal line connection area at the other end. The control substrate has a first soldering surface on one surface and a second soldering surface on the other surface. The control substrate has a first signal connection group in the signal line connection area of ​​the first soldering surface and a third signal connection group in the signal line connection area of ​​the second soldering surface. The control substrate has a second signal contact group and a fourth signal contact group in the connector connection area of ​​the first soldering surface. The second signal contact group of the control substrate is used to electrically connect to a plurality of the first soldering ends of the first connection terminal group, and the fourth signal contact group of the control substrate is used to electrically connect to a plurality of the second soldering ends of the second connection terminal group. The first signal connection group has 1 to 11 contacts, of which contacts 1 and 11 are ground ports, contacts 2, 3, 9 and 10 are signal ports, contacts 4 and 8 are power ports, and contacts 5, 6 and 7 are USB 2.0 signal ports; The third signal connection group has 1 to 11 contacts, of which 1 and 11 are ground ports, 2, 3, 5, 9 and 10 are signal ports, 4 and 8 are power ports, 6 is a chip signal connection port and 7 is a jumper signal port. The second signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 10 and 11 are signal ports, contacts 4 and 9 are power ports, contacts 5, 6 and 7 are USB 2.0 signal ports, and contact 8 is a jumper signal port; The fourth signal connection group has 1 to 12 contacts, of which contacts 1 and 12 are ground ports, contacts 2, 3, 5, 10 and 11 are signal ports, contacts 4 and 9 are power ports, and contact 8 is a chip signal connection port; The first signal connection group is electrically connected to the second signal contact group, and the third signal connection group is electrically connected to the fourth signal contact group. Specifically, contacts 1 to 7 of the first signal connection group are electrically connected to contacts 1 to 7 of the second signal connection group, contacts 8 to 11 of the first signal connection group are electrically connected to contacts 9 to 12 of the second signal connection group, contact 8 of the second signal connection group is electrically connected to contact 7 of the third signal connection group, contacts 1 to 5 of the third signal connection group are electrically connected to contacts 1 to 5 of the fourth signal connection group, and contacts 8 to 11 of the third signal connection group are electrically connected to contacts 9 to 12 of the fourth signal connection group.

4. The electrical connector structure as described in claim 3, characterized in that, The first and 11 contacts of the first signal connection group, the first and 12 contacts of the second signal connection group, the first and 11 contacts of the third signal connection group, and the first and 12 contacts of the fourth signal connection group are all grounded ports and are electrically connected to each other.

5. The electrical connector structure as described in claim 3, characterized in that, The 4th and 8th contacts of the first signal connection group, the 4th and 9th contacts of the second signal connection group, the 4th and 8th contacts of the third signal connection group, and the 4th and 9th contacts of the fourth signal connection group are all power ports and are electrically connected to each other.

6. The electrical connector structure as described in claim 1, 2, or 3, characterized in that, The control substrate has a chip soldering area on the second soldering surface, and the sixth contact of the third signal connection group and the eighth contact of the fourth signal connection group are electrically connected to the chip soldering area.

7. The electrical connector structure as described in claim 1, 2, or 3, characterized in that, The control board has at least two protrusions protruding from the edge of the signal line connection area, and each of the at least two protrusions has a positioning soldering area on its surface.

8. The electrical connector structure as described in claim 1, 2, or 3, characterized in that, The first signal connection group and the third signal connection group of the signal line connection area of ​​the control board are electrically connected to a preset signal transmission line.

9. The electrical connector structure as described in claim 1, 2, or 3, characterized in that, The first to 12 contacts of the fourth signal contact group are welding holes that penetrate the first welding surface and the second welding surface.

10. The electrical connector structure as described in claim 1, 2, or 3, characterized in that, The control board has a positioning hole on each side of the connector connection area. The two positioning holes are electrically connected to the first and 11 contacts of the first signal connection group, the first and 12 contacts of the second signal connection group, the first and 11 contacts of the third signal connection group, and the first and 12 contacts of the fourth signal connection group.