A plugboard-type Type-C connector

Abstract

The present invention discloses a plug-in type Type-C connector, which includes a housing, an insulating body, a locking body, and a terminal assembly; wherein, an insertion interface is provided on a side of the locking body away from the insulating body, and the insertion interface is used for inserting a circuit board. The plug-in type Type-C connector of the present invention realizes the connection between the Type-C connector and the circuit board through a plugging method, reducing the connection requirements between the Type-C connector and the circuit board. At the same time, by connecting the metal terminals through the PCB board, using the wiring of the corresponding positions of the PCB board (the PCB wiring is pure copper, and the conductivity is much higher than the alloy material of the metal terminals), it is equivalent to increasing the cross-sectional area of the connection part between the metal terminals and the PCB board, reducing the conduction resistance of the connection part. At the same time, due to the planar connection method of the PCB board, a gap is generated between the metal terminals, increasing the characteristic insulation impedance between the metal terminals, thereby further improving the high-frequency and high-speed performance of the connector.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a plug-in type Type-C connector. Background Art

[0002] Type-C is a connection form of the USB interface, which can be inserted regardless of the front and back sides, with a size of approximately 8.3 mm × 2.5 mm, and supports functions such as USB standard charging, data transmission, and display output like other interfaces. With the continuous development of display technology, the transmission rate of image transmission is getting higher and higher. The current transmission rate of the Type-C connector has reached 40 Gbps. Therefore, the performance requirements for the connectors of image transmission are getting higher and higher, not only requiring better materials and more stringent process guarantees, but also meeting the needs such as high-power charging. However, currently, the connection between the clamping type Type-C connector and the circuit board is usually carried out by welding. Since the pin pitch in the Type-C connector is small, when welding the pins to the circuit board, there are high requirements for the solder joints between the pins and the circuit board. For example, the solder joints are required to be as smooth as possible, especially no tin tip burrs are allowed, which brings many inconveniences. Summary of the Invention

[0003] The main object of the present invention is to propose a plug-in type Type-C connector, aiming to reduce the connection requirements between the Type-C connector and the circuit board.

[0004] To achieve the above object, the plug-in type Type-C connector proposed by the present invention includes:

[0005] A housing;

[0006] An insulating body, disposed in the housing, the insulating body having a plurality of first accommodation grooves;

[0007] A locking body, connected to the insulating body, the locking body having a plurality of second accommodation grooves; and

[0008] A terminal assembly, including a PCB board assembly and a plurality of metal terminals, the PCB board assembly is disposed on the insulating body and located between the insulating body and the locking body, the PCB board assembly is used to fix the plurality of metal terminals, one end of the plurality of metal terminals is disposed in the plurality of first accommodation grooves, and the other end is disposed in the plurality of second accommodation grooves;

[0009] Wherein, an insertion interface is provided on a side of the locking body away from the insulating body, and the insertion interface is used for the circuit board to be inserted.

[0010] In one embodiment, the PCB board assembly includes a main circuit board and two auxiliary circuit boards located on opposite sides of the main circuit board. The plurality of metal terminals are located between the main circuit board and the auxiliary circuit boards, and the two auxiliary circuit boards are used to weld the plurality of metal terminals to the main circuit board.

[0011] In one embodiment, a card slot is formed in the middle of the metal terminal, and the card slot is clamped with the auxiliary circuit board.

[0012] In one embodiment, the openings of the card slots of the plurality of metal terminals located on opposite sides of the main circuit board face in opposite directions.

[0013] In one embodiment, a plurality of solder pads are provided on the main circuit board and / or the auxiliary circuit board. The plurality of metal terminals are soldered to the main circuit board and / or the auxiliary circuit board and correspond to the plurality of solder pads one by one.

[0014] In one embodiment, the insulating body has an insulating body portion and two extending portions extending outward from the same side of the insulating body portion. The extending portions include a first extending portion and a second extending portion, and a clamping groove is formed between the first extending portion and the second extending portion. The main circuit board is disposed in the clamping groove, and the auxiliary circuit board is located between the two extending portions.

[0015] In one embodiment, the plug-in type Type-C connector further includes a self-locking elastic piece, and the self-locking elastic piece is installed on the outer surface of the extending portion for connecting the insulating body and the locking body.

[0016] In one embodiment, the self-locking elastic piece is provided with a first limiting opening and a second limiting opening. The extending portion is provided with a first limiting block that is in limiting cooperation with the first limiting opening. The locking body includes a locking body portion and two connecting portions extending outward from the same side of the locking body portion. The connecting portion is provided with a second limiting block that is in limiting cooperation with the second limiting opening.

[0017] In one embodiment, a hook is provided at one end of the self-locking elastic piece away from the insulating body, and the locking body is provided with an avoidance notch. The hook is disposed in the avoidance notch for clamping with a circuit board inserted into the insertion interface.

[0018] In one embodiment, the locking body is provided with a clamping portion, and the housing is provided with a clamping opening. The locking body is clamped with the clamping opening through the clamping portion.

[0019] The plug-in type Type-C connector of the present invention includes a housing, an insulating body, a locking body, and a terminal assembly. The insulating body is disposed within the housing, and the insulating body has a plurality of first receiving grooves; the locking body is connected to the insulating body, and the locking body has a plurality of second receiving grooves; the terminal assembly includes a PCB board assembly and a plurality of metal terminals. The PCB board assembly is disposed on the insulating body and is located between the insulating body and the locking body. The PCB board assembly is used to fix the plurality of metal terminals. One end of the plurality of metal terminals is disposed in the plurality of first receiving grooves, and the other end is disposed in the plurality of second receiving grooves; wherein, an insertion interface is provided on a side of the locking body away from the insulating body, and the insertion interface is used for a circuit board to be inserted. By providing the insertion interface on the side of the locking body away from the insulating body, an external circuit board can be inserted into the insertion interface to achieve electrical connection between the circuit board and the metal terminals. The plugging method is convenient, simple, fast, and stable, avoiding the trouble and risks of welding the traditional Type-C connector to the circuit board, and can be repeatedly plugged and used, reducing the connection requirements between the Type-C connector and the circuit board. At the same time, by connecting the metal terminals through the PCB board, using the wiring of the corresponding positions of the PCB board (the PCB wiring is pure copper, and the conductivity is much higher than the alloy material of the metal terminals), it is equivalent to increasing the cross-sectional area of the connection part between the metal terminals and the PCB board, reducing the conduction resistance of the connection part. At the same time, due to the planar connection method of the PCB board, a gap is generated between the metal terminals, increasing the characteristic insulation impedance between the metal terminals, thereby further improving the high-frequency and high-speed performance of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the plug-in type Type-C connector of the present invention;

[0022] Figure 2 is Figure 1 a schematic structural diagram of the plug-in type Type-C connector in

[0023] Figure 3 is Figure 2 an exploded view of the structure in

[0024] Figure 4 is Figure 3Further exploded view of the middle structure;

[0025] Figure 5 For Figure 3 Schematic diagram of the structure from another perspective after removing the outer shell of the structure in

[0026] Figure 6 For Figure 3 Further exploded view of the structure in

[0027] Figure 7 For Figure 6 Schematic diagram of the structure of the locking body and the self-locking elastic piece in

[0028] Figure 8 For Figure 6 Schematic diagram of the structure of the insulating body and the outer shell in

[0029] Figure 9 For Figure 6 Further exploded view of the terminal assembly in

[0030] Figure 10 Schematic diagram of the structure of the plug-in type Type-C connector from another perspective;

[0031] Figure 11 For Figure 10 Exploded view of the structure in

[0032] Figure 12 For Figure 11 Schematic diagram of the structure of the insulating body and the metal damping elastic piece in

[0033] Figure 13 Cross-sectional view of the plug-in type Type-C connector.

[0034] Explanation of the reference numerals in the drawings:

[0035] Label Name Label Name 100 Outer shell 341 Second limiting block 110 Bayonet 350 Avoidance notch 200 Insulating body 360 Snap joint part 210 First accommodating groove 400 Terminal assembly 220 Insulating body part 410 PCB board assembly 230 Extension part 411 Main circuit board 231 First extension part 412 Auxiliary circuit board 232 Second extension part 420 Metal terminal 233 Clamping groove 421 Card slot 234 First limiting block 500 Self-locking spring piece 240 Connection port 510 Enclosing part 250 First mounting opening 511 First limiting opening 260 Second mounting opening 512 Second limiting opening 300 Locking body 520 First extension segment 310 Second accommodating groove 521 Hook 320 Insertion interface 530 Second extension segment 330 Locking body part 600 Metal damping spring piece 340 Connection part 700 Circuit board

[0036] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] An embodiment of a plug-in type Type-C connector is proposed in the present invention, which is mainly applied to mobile phones, computers, and other electronic products. The plug-in type Type-C connector of the present invention is a 24PIN full-function type-c self-locking solderless plug-in male connector. This method can also be extended to various special type-c self-locking solderless plug-in male connectors with less than 24PIN, and no specific limitations are made in this regard. The plug-in type Type-C connector can widely support USB 3.0, USB 3.1, USB 3.2, USB 4, and the transmission protocols of USB with higher speed requirements in the future, and also supports various fast charging protocols below 160W.

[0041] Please refer to Figures 1 to 13, in an embodiment of the present invention, the plug-in type Type-C connector includes a housing 100, an insulating body 200, a locking body 300, and a terminal assembly 400. The insulating body 200 is disposed within the housing 100, and the insulating body 200 has a plurality of first receiving grooves 210; the locking body 300 is connected to the insulating body 200, and the locking body 300 has a plurality of second receiving grooves 310; the terminal assembly 400 includes a PCB board assembly 410 and a plurality of metal terminals 420, the PCB board assembly 410 is disposed on the insulating body 200 and is located between the insulating body 200 and the locking body 300, the PCB board assembly 410 is used to fix the plurality of metal terminals 420, one end of the plurality of metal terminals 420 is disposed in the plurality of first receiving grooves 210, and the other end is disposed in the plurality of second receiving grooves 310; wherein, an insertion interface 320 is provided on a side of the locking body 300 away from the insulating body 200, and the insertion interface 320 is used for a circuit board 700 to be inserted.

[0042] Specifically, please refer to Figure 8 , Figures 10 to 13 , the housing 100 is made of a metal material, the insulating body 200 is disposed within the housing 100, and the housing 100 is mainly used to cover the insulating body 200 and the plurality of metal terminals 420, thereby providing an effect of metal shielding, and at the same time, it also plays a protective role for other components within the housing 100. The insulating body 200 is made of a plastic insulating material, and a plurality of first receiving grooves 210 for placing the metal terminals 420 are provided within the insulating body 200. The plurality of first receiving grooves 210 are respectively located on the upper and lower sides of the insulating body 200, and the plurality of first receiving grooves 210 are separated from each other and not connected, so as to prevent the plurality of metal terminals 420 from being conducted during use. At the same time, the plurality of first receiving grooves 210 also play a certain limiting role on the plurality of metal terminals 420, preventing the metal terminals 420 from being misaligned during long-term use during plugging and unplugging.

[0043] Please refer to Figures 3 to 7, the locking body 300 is also made of plastic insulation material to play an insulating role. The locking body 300 is connected to the insulating body 200, and the connection method can be snap connection or other connection methods such as bonding. In this embodiment, for the convenience of assembly, the locking body 300 and the insulating body 200 are connected by snap connection. A plurality of second accommodation grooves 310 for placing the other ends of the metal terminals 420 are provided in the locking body 300. The plurality of second accommodation grooves 310 are respectively located on the upper and lower sides of the locking body 300, and the plurality of second accommodation grooves 310 are separated from each other and not communicated, so as to prevent the plurality of metal terminals 420 from being conducted during use. At the same time, the plurality of second accommodation grooves 310 also play a certain limiting role on the plurality of metal terminals 420, so as to prevent the metal terminals 420 from being misaligned during plugging and unplugging during long-term use. The shapes of the first accommodation groove 210 and the second accommodation groove 310 are generally square-opening through grooves.

[0044] Further, compared with the traditional connection of the metal terminal 420 to the insulating body 200 and the locking body 300 by encapsulation, the two ends of the metal terminal 420 in the plug-in type Type-C connector of the present application are respectively arranged in the first accommodation groove 210 of the insulating body 200 and the second accommodation groove 310 of the locking body 300. Therefore, the direct contact area between the metal terminal 420 and the plastic material is small, so the requirement for the dielectric constant of the plastic material is not strict, that is, the requirements for the materials of the insulating body 200 and the locking body 300 are not strict. The traditional metal terminal 420 is connected to the insulating body 200 and the locking body 300 by encapsulation, which requires higher materials for the insulating body 200 and the locking body 300, and the production process requirements for the insulating body 200 and the locking body 300 are more stringent. The plug-in type Type-C connector of the present application adopts the above design, so that the overall consistency of the connector is higher, which is convenient for large-scale production of the connector.

[0045] Please refer to Figure 9, the terminal assembly 400 is disposed on the insulating body 200 and is located within the housing 100. The terminal assembly 400 includes a PCB board assembly 410 and a plurality of metal terminals 420. The plurality of metal terminals 420 are fixed by the PCB board assembly 410, and both ends of the fixed plurality of metal terminals 420 are respectively inserted into the first receiving grooves 210 of the insulating body 200 and into the second receiving grooves 310 of the locking body 300. The PCB board assembly 410 is located between the insulating body 200 and the locking body 300. Considering the requirements of elasticity and rigidity, the material of the metal terminal 420 is set as alloy copper material, which can be brass, can also be phosphor bronze, or can be other types of alloy copper, and no specific limitation is made thereto. The number of the metal terminals 420 is set as a plurality, and the number of the metal terminals 420 can be independently selected according to actual needs. Specifically, in this embodiment, the number of the metal terminals 420 is set as 24, and the 24 metal terminals 420 are respectively located in the first receiving grooves 210 and the second receiving grooves 310 on the upper and lower sides of the Type-C connector. The number of the first receiving grooves 210 and the second receiving grooves 310 is also set as a plurality, and it only needs to ensure that the number of the first receiving grooves 210 and the second receiving grooves 310 is not less than the number of the metal terminals 420, and no specific limitation is made thereto.

[0046] Please refer to Figures 2 to 7, on the side of the locking body 300 away from the insulating body 200, there is an insertion interface 320, which can be inserted by an external circuit board 700 to achieve electrical connection between the circuit board 700 and the metal terminal 420. Conventionally, the electrical connection between the circuit board 700 and the Type-C connector is usually achieved by welding, and then the multimedia signal is transmitted through the circuit board 700, and the output current provided by the circuit board 700 is received. However, due to the small pin pitch in the Type-C connector, when welding the pins to the circuit board 700, there are high requirements for the solder joints between the pins and the circuit board 700. For example, the solder joints are required to be as smooth as possible, especially no tin tip burrs are allowed. The requirements for welding are very high, which is time-consuming and laborious to operate, and the cost is relatively high. In the present invention, by providing an insertion interface 320 for inserting an external circuit board 700 on the side of the locking body 300 away from the insulating body 200, inserting the circuit board 700 into the insertion interface 320 can achieve the electrical connection between the Type-C connector and the external circuit board 700. The operation is convenient, simple, fast and stable, avoiding the trouble and risk of welding the traditional Type-C connector to the circuit board 700, and can be repeatedly inserted and pulled out for use. At the same time, the consistency of the present plug-in type Type-C connector is higher, the yield of production and processing is high, the relative test link is simple, and the requirements for test equipment are relatively low, which can further reduce the production cost. Among them, the height of the insertion interface 320 is adapted to the thickness of the circuit board 700. By replacing different locking bodies 300, that is, replacing the locking bodies 300 with different heights of the insertion interface 320, the requirements of circuit boards 700 with different thicknesses can be adapted.

[0047] The plug-in type Type-C connector of the present invention includes a housing 100, an insulating body 200, a locking body 300, and a terminal assembly 400. The insulating body 200 is disposed within the housing 100, and the insulating body 200 has a plurality of first accommodation grooves 210; the locking body 300 is connected to the insulating body 200, and the locking body 300 has a plurality of second accommodation grooves 310; the terminal assembly 400 includes a PCB board assembly 410 and a plurality of metal terminals 420, the PCB board assembly 410 is disposed on the insulating body 200 and is located between the insulating body 200 and the locking body 300, the PCB board assembly 410 is used to fix the plurality of metal terminals 420, one end of the plurality of metal terminals 420 is disposed in the plurality of first accommodation grooves 210, and the other end is disposed in the plurality of second accommodation grooves 310; wherein, an insertion interface 320 is provided on a side of the locking body 300 away from the insulating body 200, and the insertion interface 320 is used for a circuit board 700 to be inserted. By providing the insertion interface 320 on the side of the locking body 300 away from the insulating body 200, an external circuit board 700 can be inserted into the insertion interface 320 to achieve electrical connection between the circuit board 700 and the metal terminals 420. The plugging method is convenient, simple, fast, and stable, avoiding the trouble and risks of welding the traditional Type-C connector to the circuit board 700, and can be repeatedly plugged and unplugged, reducing the connection requirements between the Type-C connector and the circuit board 700.

[0048] Please refer to Figure 6 and Figure 9 , in an embodiment, the PCB board assembly 410 includes a main circuit board 411 and two auxiliary circuit boards 412 located on opposite sides of the main circuit board 411. The plurality of metal terminals 420 are located between the main circuit board 411 and the auxiliary circuit boards 412, and the two auxiliary circuit boards 412 are used to weld the plurality of metal terminals 420 to the main circuit board 411.

[0049] Specifically, the PCB board assembly 410 includes a main circuit board 411 and two auxiliary circuit boards 412 located on opposite sides of the main circuit board 411. The multiple metal terminals 420 are respectively located on opposite sides of the main circuit board 411, that is, between the main circuit board 411 and the auxiliary circuit boards 412. The two auxiliary circuit boards 412 are used to weld the multiple metal terminals 420 to the main circuit board 411. The multiple metal terminals 420 are welded to the main circuit board 411. To further ensure the stability of the connection between the multiple metal terminals 420 and the PCB board assembly 410, the multiple metal terminals 420 can also be welded to the auxiliary circuit boards 412. Solder paste can be pre-applied at the positions where the main circuit board 411 contacts the multiple metal terminals 420. By heating the multiple metal terminals 420, the solder paste melts to complete the welding of the multiple metal terminals 420 to the main circuit board 411. By welding, the multiple metal terminals 420 are welded to the surfaces on opposite sides of the main circuit board 411, which further fixes the multiple metal terminals 420. Similarly, solder paste can be pre-applied at the positions where the auxiliary circuit boards 412 contact the multiple metal terminals 420. By heating the multiple metal terminals 420, the solder paste melts to complete the welding of the multiple metal terminals 420 to the auxiliary circuit boards 412.

[0050] Further, a card slot 421 is formed in the middle of the metal terminal 420, and the card slot 421 is snap-connected to the auxiliary circuit board 412. Specifically, a card slot 421 is also bent and formed in the middle of the metal terminal 420, and the card slot 421 is snap-connected to the auxiliary circuit board 412, so that the displacement of the metal terminal 420 in the extending direction of the metal terminal 420 can be restricted, and at the same time, the bearing force of pushing or pulling between the metal terminal 420 and the auxiliary circuit board 412 is also increased.

[0051] Even further, the openings of the card slots 421 of the multiple metal terminals 420 located on opposite sides of the main circuit board 411 face in opposite directions. Specifically, since the card slots 421 of the metal terminals 420 are snap-connected to the auxiliary circuit boards 412, and the auxiliary circuit boards 412 are located on opposite sides of the main circuit board 411, the openings of the card slots 421 of the multiple metal terminals 420 located on opposite sides of the main circuit board 411 are arranged to face in opposite directions.

[0052] In an embodiment, multiple solder pads (not shown) are provided on the main circuit board 411 and / or the auxiliary circuit boards 412. The multiple metal terminals 420 are welded to the main circuit board 411 and / or the auxiliary circuit boards 412 and correspond to the multiple solder pads one by one.

[0053] Specifically, multiple pads are arranged at intervals along the direction in which the multiple metal terminals 420 are arranged, and the positions of the pads correspond one-to-one to the positions where the metal terminals 420 are welded. The multiple pads can be separately provided on the main circuit board 411, or separately provided on the auxiliary circuit board 412, or simultaneously provided on the main circuit board 411 and the auxiliary circuit board 412, and no specific limitation is made thereto. The pad can be pure copper (copper layer), and the high-frequency characteristics and electrical conductivity of copper are much better than those of alloy copper. Therefore, it is better to transmit high-frequency signals through the pads. The multiple metal terminals 420 are in contact with the main circuit board 411 and the auxiliary circuit board 412, and can also be welded to the main circuit board 411 and the auxiliary circuit board 412 through solder paste. In addition, the signals on the multiple metal terminals 420 are transmitted to the multiple pads. The radiation interference of high-frequency signals to other signals and the radiation interference of other signals to high-frequency signals can be improved by adjusting the distance between the multiple pads during production, that is, adjusting the distance between the multiple metal terminals 420. Further, holes can be drilled between two adjacent pads, and air can flow into the holes, so that the dielectric constant can be adjusted as required.

[0054] Please refer to Figure 8 and Figure 12 , in an embodiment, the insulating body 200 has an insulating body portion 220 and two extending portions 230 extending outward from the same side of the insulating body portion 220. The extending portions 230 include a first extending portion 231 and a second extending portion 232. A clamping groove 233 is formed between the first extending portion 231 and the second extending portion 232. The main circuit board 411 is disposed in the clamping groove 233, and the auxiliary circuit board 412 is located between the two extending portions 230.

[0055] Specifically, the insulating body portion 220 of the insulating main body 200 is generally designed in a cuboid shape. Two of the extending portions 230 extend outward along the width direction of the insulating body portion 220 from one long side of the insulating body portion 220, and the two extending portions 230 are respectively located at both ends in the length direction of the insulating body portion 220. Any one of the extending portions 230 includes a first extending portion 231 and a second extending portion 232. The first extending portion 231 and the second extending portion 232 are arranged oppositely, and a clamping groove 233 is formed between the first extending portion 231 and the second extending portion 232. The main circuit board 411 and the two auxiliary circuit boards 412 are generally arranged in a cuboid shape. The length of the main circuit board 411 is longer than the length of the auxiliary circuit board 412. The part of the main circuit board 411 protruding from the auxiliary circuit board 412 is arranged in the clamping groove 233. When installing the terminal assembly 400, first weld a plurality of metal terminals 420 to the main circuit board 411 and / or the auxiliary circuit board 412, and then press the two auxiliary circuit boards 412 against the plurality of metal terminals 420 onto the main circuit board 411. At this time, the terminal assembly 400 is assembled. Slide the assembled terminal assembly 400 into the clamping groove 233, that is, slide the part of the main circuit board 411 protruding from the auxiliary circuit board 412 into the clamping groove 233. Through the sliding fit between the clamping groove 233 and the part of the main circuit board 411 longer than the auxiliary circuit board 412, the terminal assembly 400 is slidably installed in the clamping groove 233. The auxiliary circuit board 412 is located between the two extending portions 230. This connection method is simple and easy to operate.

[0056] Please refer to Figures 3 to 5 , Further, the plug-in type Type-C connector further includes a self-locking elastic piece 500. The self-locking elastic piece 500 is installed on the outer surface of the extending portion 230 for connecting the insulating main body 200 and the locking main body 300.

[0057] Specifically, the extending portion 230 extends outward from the same side of the insulating body portion 220, and the number of the extending portions 230 is set to two. The self-locking elastic piece 500 is installed on the outer surface of the extending portion 230, and the number of the self-locking elastic pieces 500 is also set to two. The self-locking elastic piece 500 includes an enclosing portion 510 and a first extending section 520 extending outward from the same side of the enclosing portion 510. The enclosing portion 510 is arranged in an arc-shaped sheet and is installed on the outer surface of the extending portion 230. The self-locking elastic piece 500 is used to connect the insulating main body 200 and the locking main body 300 to fix the relative positions of the insulating main body 200 and the locking main body 300.

[0058] Please refer to Figures 3 to 8, Further, the self-locking elastic piece 500 is provided with a first limiting port 511 and a second limiting port 512. The extension part 230 is provided with a first limiting block 234 that is in limiting cooperation with the first limiting port 511. The locking main body 300 includes a locking main body part 330 and two connecting parts 340 that extend outward from the same side of the locking main body part 330. The connecting part 340 is provided with a second limiting block 341 that is in limiting cooperation with the second limiting port 512.

[0059] Specifically, after the terminal assembly 400 is integrally installed in the clamping groove 233 of the insulating main body 200, the two extension parts 230 of the locking main body 300 can also be installed in the clamping groove 233, and then the insulating main body 200 and the locking main body 300 are connected together by the self-locking elastic piece 500. Among them, the self-locking elastic piece 500 can be provided with a first limiting port 511 and a second limiting port 512. The extension part 230 is provided with a first limiting block 234, and the first limiting block 234 is in limiting cooperation with the first limiting port 511. At the same time, the connecting part 340 is provided with a second limiting block 341, and the second limiting block 341 is in limiting cooperation with the second limiting port 512. With such a setting, the insulating main body 200 and the locking main body 300 can be connected together by one component of the self-locking elastic piece 500. As for the shapes of the first limiting port 511 and the second limiting port 512, the shapes of the first limiting port 511 and the second limiting port 512 can be circular, rectangular, arc-shaped or other special shapes, and no specific restrictions are made in this regard. The shapes of the first limiting block 234 and the second limiting block 341 are adapted to the shapes of the first limiting port 511 and the second limiting port 512. The first limiting block 234 can be arranged on the first extension part 231 or on the second extension part 232. To further ensure the stability of the connection between the self-locking elastic piece 500 and the insulating main body 200 and the locking main body 300, the first extension part 231 and the second extension part 232 are both provided with the first limiting block 234.

[0060] Please refer to Figures 3 to 7 , Figure 13 , In an embodiment, a hook 521 is provided at one end of the self-locking elastic piece 500 away from the insulating main body 200. The locking main body 300 is provided with an avoidance notch 350. The hook 521 is arranged in the avoidance notch 350 for clamping with a circuit board 700 inserted into the insertion port 320.

[0061] Specifically, at one end of the self-locking elastic piece 500 away from the insulating body 200, that is, at the end of the first extension section 520, a hook 521 is provided. Through grooves are provided on both sides of the locking body 300, and an avoidance notch 350 is provided in the through groove. The hook 521 extends into the through groove and is located at the avoidance notch 350. The avoidance notch 350 is mainly used to avoid the hook 521. The hook 521 is arranged towards the inside of the insertion interface 320. In this way, when an external circuit board 700 is inserted into the insertion interface 320, the hook 521 can be engaged with the circuit board 700 inserted into the insertion interface 320. It should be emphasized that a slot 421 structure adapted to be engaged with the hook 521 should be provided on the external circuit board 700, so that after the circuit board 700 is inserted into the insertion interface 320, the hook 521 can clamp the circuit board 700 tightly in the insertion interface 320. The height of the insertion interface 320 of the locking body 300 is fixed. By replacing the locking body 300 that is engaged with the insulating body 200, that is, replacing the locking body 300 with different heights of the insertion interface 320, the requirements of circuit boards 700 with different thicknesses can be adapted.

[0062] Please refer to Figure 7 , Further, the self-locking elastic piece 500 further includes a second extension section 530 extending outward from the same side of the enclosing portion 510. The extending direction of the second extension section 530 is opposite to the extending direction of the first extension section 520. Specifically, on one side of the insulating body 200 away from the insertion interface 320, a connection port 240 is provided for connecting with an electronic device. First mounting ports 250 communicating with the connection port 240 are further provided on opposite sides of the insulating body 200. The second extension section 530 is bent. The second extension section 530 passes through the first mounting port 250 and extends into the connection port 240. When the connection port 240 of the plug-in type Type-C connector is connected to an external electronic device, the connection port 240 is inserted into the electronic device. The second extension sections 530 on opposite sides of the insulating body 200 abut against the connecting pieces of the electronic device inserted into the connection port 240. At this time, the second extension sections 530 on opposite sides of the insulating body 200 clamp the connecting pieces of the electronic device, preventing the plug-in type Type-C connector from being easily separated from the electronic device when subjected to an external force, and further ensuring the stability of the connection between the plug-in type Type-C connector and the electronic device.

[0063] Please refer to Figure 8 、 Figure 11 and Figure 12Furthermore, the plug-in type Type-C connector further includes a metal damping spring 600, and the upper and lower sides of the insulating body 200 are provided with second mounting openings 260, and the metal damping spring 600 is mounted at the second mounting opening 260. Specifically, the second mounting opening 260 is communicated with the connecting opening 240, and the metal damping spring 600 is installed at the second mounting opening 260 and at least partially extends into the connecting opening 240. The role played by the metal damping spring sheet 600 is similar to that played by the second extension section 530 of the self-locking spring sheet 500. When the connection port 240 of the plug-in type Type-C connector is connected to an external electronic device, the connection port 240 is inserted into the electronic device, and the metal damping spring sheets 600 located on the upper and lower sides of the insulating body 200 abut against the connecting piece of the electronic device inserted into the connecting port 240. At this time, the metal damping spring sheets 600 located on the upper and lower sides of the insulating body 200 clamp the connecting piece of the electronic device to prevent the plug-in type Type-C connector from being easily separated from the electronic device when subjected to external force, and at the same time further ensure the stability of the connection between the plug-in type Type-C connector and the electronic device.

[0064] See also Figures 1 to 8 In one embodiment, the locking body 300 is provided with a snap-fitting portion 360, and the housing 100 is provided with a bayonet 110, and the locking body 300 is snap-fitted with the bayonet 110 via the snap-fitting portion 360. Specifically, the locking body 300 is connected to the housing 100 by snap-fitting, and the snap-fitting connection is simple and easy to operate. Of course, in other embodiments, the locking body 300 and the housing 100 may also be connected in other connection modes, and no specific limitation is made to this. The number of the snap-fitting portions 360 may be set to be multiple, and the number of the bayonet 110 corresponds to the number of the snap-fitting portions 360. The multiple bayonet 110 may be set on the same side of the housing 100, or may be set on opposite sides of the housing 100, and no specific limitation is made to this.

[0065] See also Figures 1 to 5 In one embodiment, the end of the first extension section 520 of the self-locking spring 500 away from the insulating body 200 protrudes from the outer surface of the end of the locking body 300 where the plug-in port 320 is opened. Specifically, the end of the first extension section 520 away from the insulating body 200 is the hook 521. In this way, when the circuit board 700 is inserted into the plug-in port 320 and is engaged with the hook 521, when the circuit board 700 needs to be pulled out, the two hooks 521 can be moved away from each other to easily remove the circuit board 700. The hook 521 protrudes from the outer surface of the end of the locking body 300 where the plug-in port 320 is opened, so that the two hooks 521 can be easily moved.

[0066] The above are only alternative embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present invention.

Claims

1. A plugboard - type Type - C connector, characterized in that, The plug-in type Type-C connector includes: a housing (100); an insulating body (200) disposed within the housing (100), the insulating body (200) having a plurality of first accommodation grooves (210); a locking body (300) connected to the insulating body (200), the locking body (300) having a plurality of second accommodation grooves (310); and a terminal assembly (400) including a PCB board assembly (410) and a plurality of metal terminals (420), the PCB board assembly (410) being disposed on the insulating body (200) and located between the insulating body (200) and the locking body (300), the PCB board assembly (410) being used to fix the plurality of metal terminals (420), one end of the plurality of metal terminals (420) being disposed in the plurality of first accommodation grooves (210) and the other end being disposed in the plurality of second accommodation grooves (310); wherein, an insertion interface (320) is provided on a side of the locking body (300) away from the insulating body (200), and the insertion interface (320) is used for a circuit board (700) to be inserted; the PCB board assembly (410) includes a main circuit board (411) and two auxiliary circuit boards (412) located on opposite sides of the main circuit board (411), the plurality of metal terminals (420) being located between the main circuit board (411) and the auxiliary circuit boards (412), and the two auxiliary circuit boards (412) being used to weld the plurality of metal terminals (420) to the main circuit board (411).

2. The plugboard-type Type-C connector according to claim 1, characterized in that, A card slot (421) is formed in the middle of the metal terminal (420), and the card slot (421) is snap-connected to the auxiliary circuit board (412).

3. The plug-in type Type-C connector according to claim 2, wherein, The openings of the card slots (421) of the plurality of metal terminals (420) located on opposite sides of the main circuit board (411) face in opposite directions.

4. The plug-in board type Type-C connector according to claim 2, wherein, A plurality of solder pads are provided on the main circuit board (411) and / or the auxiliary circuit board (412), and the plurality of metal terminals (420) are welded to the main circuit board (411) and / or the auxiliary circuit board (412) and correspond to the plurality of solder pads one by one.

5. The plugboard-type Type-C connector according to claim 1, wherein, The insulating body (200) has an insulating body portion (220) and two extending portions (230) extending outward from the same side of the insulating body portion (220), the extending portions (230) including a first extending portion (231) and a second extending portion (232), a clamping groove (233) being formed between the first extending portion (231) and the second extending portion (232), the main circuit board (411) being disposed in the clamping groove (233), and the auxiliary circuit boards (412) being located between the two extending portions (230).

6. The plug-in type Type-C connector according to claim 5, wherein The plug-in type Type-C connector further includes a self-locking elastic piece (500), and the self-locking elastic piece (500) is installed on the outer surface of the extending portion (230) for connecting the insulating body (200) and the locking body (300).

7. The plug-in type Type-C connector according to claim 6, wherein, The self-locking elastic piece (500) is provided with a first limiting port (511) and a second limiting port (512). The extension part (230) is provided with a first limiting block (234) that is in limiting cooperation with the first limiting port (511). The locking main body (300) includes a locking main body part (330) and two connecting parts (340) that extend outward from the same side of the locking main body part (330). The connecting part (340) is provided with a second limiting block (341) that is in limiting cooperation with the second limiting port (512).

8. The plug-in type Type-C connector according to claim 6, characterized in that, One end of the self-locking elastic piece (500) away from the insulating main body (200) is provided with a hook (521). The locking main body (300) is provided with an avoidance notch (350). The hook (521) is arranged in the avoidance notch (350) for clamping with the circuit board (700) inserted into the insertion port (320).

9. The plug-in board type Type-C connector according to any one of claims 1 to 8, characterized in that, The locking main body (300) is provided with a clamping part (360). The outer shell (100) is provided with a clamping opening (110). The locking main body (300) is clamped with the clamping opening (110) through the clamping part (360).

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