Novel vertical automobile PCB butting connector and assembling method thereof

Abstract

The invention discloses a vertical type novel automobile PCB butt joint connector and an assembling method thereof, and relates to the field of electric connecting elements, the vertical type novel automobile PCB butt joint connector comprises a plastic shell and two row pin terminals, each row pin terminal comprises an injection molding connecting body and a plurality of pin pins, the injection molding connecting body is of a long-strip-shaped structure, the pin pins are arranged in the injection molding connecting body, and the pin pins are arranged in the injection molding connecting body. The pin pins are arranged at equal intervals along the length direction of the injection molding connector, and the pin pins are fixed on the injection molding connector in a pre-embedded injection molding manner; the injection molding connecting bodies of the two row pin terminals are overlapped with each other; the plastic shell comprises a terminal cavity and a butt joint cavity, the two injection molding connecting bodies are inserted into the terminal cavity, one end of each contact pin pin extends into the butt joint cavity, and the other end of each contact pin pin extends to the outer side of the plastic shell so as to be used for being connected with a PCB (Printed Circuit Board). According to the invention, the flatness and true position of the terminal can be improved.

Description

Technical Field

[0001] This application relates to the field of electrical connection components, and particularly to a vertical new type of automotive PCB board docking connector and its assembly method. Background Art

[0002] A connector, also called a plug, generally refers to an electrical connector. The male and female ends of the connector can transmit information or current after contact. The PCB docking connector of an electric vehicle is mainly used for signal acquisition of the main board of the electric vehicle and signal acquisition of the battery pack of the electric vehicle.

[0003] A vertical board-end connector is a connector whose plugging direction is perpendicular to the PCB. In the prior art, the pin terminals of the vertical board-end connector are separately arranged from the plastic structure. During the process of assembling the connector pin terminals to the plastic structure, the flatness and ortho-position of each pin terminal need to be ensured, resulting in high assembly difficulty, high loss of the pin terminals, and easy deviation and difficult control of the ortho-position of the pin terminals. Especially for the case where the number of pins is greater than 12, the technical difficulty of controlling the flatness of the pin terminals is even higher. Summary of the Invention

[0004] In order to improve the flatness and ortho-position of the pins of the PCB docking connector, this application provides a vertical new type of automotive PCB board docking connector and its assembly method.

[0005] The vertical new type of automotive PCB board docking connector and its assembly method provided by this application adopt the following technical solutions: A vertical new type of automotive PCB board docking connector includes a plastic housing and two rowed pin terminals. The rowed pin terminals include an injection-molded connection body and a plurality of pin pins. The injection-molded connection body is a long strip structure, and the pin pins are arranged at equal intervals along the length direction of the injection-molded connection body. The pin pins are fixed to the injection-molded connection body by means of embedded injection molding. The injection-molded connection bodies between the two rowed pin terminals are overlapped with each other, and the injection-molded connection body is provided with a limit alignment structure, which can keep the two injection-molded connection bodies aligned. The plastic housing includes a terminal chamber and a docking chamber. The two injection-molded connection bodies are inserted into the terminal chamber, one end of the pin pin extends into the docking chamber, and the other end of the pin pin extends to the outside of the plastic housing for connecting to the PCB board.

[0006] By adopting the above technical solution, the pin pins of the rowed pin terminals are fixed to the injection connection body in a pre-embedded injection molding manner, so that the relative positions between the pin pins are kept fixed, facilitating the processing of the ends of the pin pins for connecting the PCB board to an aligned state, thereby ensuring the alignment accuracy between the pin pins and being beneficial to ensuring the flatness and ortho-position of the pins. The pins of the docking connector are respectively arranged on two rowed pin terminals, which can provide a relatively large number of pins. Moreover, the two rowed pin terminals are overlapped and arranged side by side with each other, enabling a relatively large number of pins to easily maintain a high flatness and ortho-position.

[0007] Optionally, fixing connection pieces are respectively arranged at both ends of the plastic housing, and the fixing connection pieces are provided with bending welding parts; plugging slots for plugging the fixing connection pieces are respectively arranged at both ends of the plastic housing, and the plugging direction between the fixing connection pieces and the plugging slots is perpendicular to the plugging direction between the injection connection body and the plastic housing.

[0008] By adopting the above technical solution, the plugging direction between the fixing connection pieces and the plastic housing is perpendicular to the plugging and unplugging direction of the docking connector, enabling the fixing connection pieces to bear the plugging and unplugging force during the use of the docking connector. The fixing connection pieces are connected to the PCB board through the bending welding parts, which can increase the connection strength and reduce the situation of vibration and de-welding of the fixing connection pieces during use.

[0009] Optionally, a protrusion and a groove are arranged on one side of the injection connection body, the shapes of the protrusion and the groove are adapted to each other, and the two injection connection bodies are connected and cooperated through the protrusion and the groove; the protrusion and the groove serve as a limit alignment structure.

[0010] By adopting the above technical solution, the injection connection bodies are connected and cooperated through the protrusion and the groove, improving the integrity formed between the two rowed pin terminals and reducing the situation of relative misalignment of the two rowed pin terminals driven by the plugging and unplugging force.

[0011] Optionally, a bent section is arranged at one end of the pin pin protruding from the plastic housing, and the bending directions of the bent sections of the two rowed pin terminals are opposite; a row of limit notches are respectively arranged at the edges of the two side walls of the plastic housing, and each row of limit notches corresponds to each bent section of one rowed pin terminal, and the limit notches are used for positioning the corresponding bent sections.

[0012] By adopting the above technical solution, the limit notches located at the edges of the side walls of the plastic housing can form a limiting effect on the bent sections of the pin pins, thus being beneficial to ensuring the flatness of the terminals. Under the limiting effect of the limit notches, the bent sections of the pin pins are not easily deformed during transportation.

[0013] Optionally, two of the injection-molded connectors are jointly connected to a double-prong needle. There are two double-prong needles, which are arranged oppositely; the double-prong needle has two prongs, and the part between the two prongs of the double-prong needle is the connecting section; the injection-molded connector is provided with a jack, and the depth direction of the jack is arranged along the length direction of the injection-molded connector. The two prongs of the double-prong needle are respectively inserted into the jacks on the two injection-molded connectors correspondingly, and both ends of each jack are for the prongs of the double-prong needle to be inserted; the double-prong needle has an elastic deformation force that forces the two injection-molded connectors to approach each other.

[0014] By adopting the above technical solution, the injection-molded connectors of two rowed pin terminals are connected to the same double-prong needle, so that the double-prong needle can prevent the two rowed pin terminals from moving away from each other, strengthening the connection between the two rowed pin terminals, which is beneficial to further improving the integrity of the two rowed pin terminals.

[0015] Optionally, a plastic film layer is provided on the inner wall of the jack, and a flexible filler layer is provided between the prong and the plastic film layer, and the flexible filler layer is in a state of being compressed and deformed.

[0016] By adopting the above technical solution, the jack on the injection-molded connector can be pre-embedded and injection-molded by using a flexible filler core material wrapped with a plastic film. The space occupied by the flexible filler core material serves as the jack, making the formation of the jack relatively easy. After the injection-molded connector is injection-molded, the prongs of the fork rod can directly utilize the space of the jack by piercing the flexible filler core material, and the material of the flexible filler core material squeezed by the prongs serves as the flexible filler layer.

[0017] Optionally, concave cutting surfaces are respectively provided on both sides of the injection-molded connector, and both ends of the jack respectively penetrate through the two cutting surfaces.

[0018] By adopting the above technical solution, after the jack on the injection-molded connector is pre-embedded and injection-molded by using a flexible filler core material wrapped with a plastic film, the two sides of the injection-molded connector are cut, so that both ends of the flexible filler core material are exposed, and the ends of the flexible filler rod are flush with the cutting surfaces, making it easier for the prongs of the double-prong needle to pierce the flexible filler core material.

[0019] Optionally, a pre-supporting member is provided between the two prongs of the double-prong needle. The pre-supporting member is fixedly connected to the connecting section, and there are gaps between the pre-supporting member and the two prongs respectively.

[0020] When making a double-pronged needle, the greater the pre-bending deformation of the two prongs of the double-pronged needle, the stronger the clamping effect of the double-pronged needle on the injection-molded connector. When the two prongs have a large pre-bending deformation, it is more difficult to simultaneously insert the two prongs of the double-pronged needle into the sockets of the two injection-molded connectors. By adopting the above technical solution, the pre-support component can stretch the two prongs with a large pre-bending deformation to a state that is nearly parallel, making it easier for the two prongs of the double-pronged needle to be inserted into the sockets of the two injection-molded connectors.

[0021] Optionally, two sides of the plastic shell are respectively provided with engaging grooves for avoiding the connecting section.

[0022] By adopting the above technical solution, the connecting section of the double-pronged pin can form a snap-fitting effect with the snap-fitting groove, so that the plugging and unplugging force applied to the row of pin terminals can act on the plastic housing through the connecting section of the double-pronged pin, which is beneficial for making the two row of pin terminals more stable and reliable during use.

[0023] Optionally, the two inner walls of the plastic shell are respectively provided with double-sided tape, the double-sided tape is located in the terminal cavity, the double-sided tape is parallel to the length direction of the injection molded connector, and the two double-sided tapes are respectively bonded to the two injection molded connectors; the two outer walls of the plastic shell are respectively provided with a group of side ears, the positions of the two groups of side ears correspond to the two double-sided tapes, and the number of side ears in each group is multiple, and the multiple side ears in the same group are arranged at intervals along the length direction of the injection molded connector, and the side ears are provided with ear holes for passing rods, and the distance between the ear holes of each side ear and the center line of the long axis of the plastic shell first decreases and then increases.

[0024] By adopting the above technical solution, the two inner walls of the plastic shell can be respectively bonded to the two injection-molded connectors by double-sided tape, so that the plastic shell can be connected to the two injection-molded connectors to form a relatively stable overall structural member, thereby reducing the relative looseness between the plastic shell and the two row pin terminals after long-term use.

[0025] When the plastic shell is assembled with two row pin terminals, double-sided tapes are first adhered to the two inner side walls of the plastic shell, release paper is pre-adhered to the side of the double-sided tape away from the inner wall of the plastic shell, and two straight rods are used to insert into the two groups of side ears on both sides of the plastic shell. Since the distance between the ear holes of the side ears of the same group and the long axis center line of the plastic shell first decreases and then increases, after the straight rods pass through each ear hole, the plastic shell can be forced to arch outward, so that a certain gap can be left between the release paper and the injection molded connector inserted into the plastic shell, so as to facilitate tearing the release paper from the double-sided tape. When the release paper is torn off, the two straight rods are pulled out, so that the double-sided tapes on both sides of the plastic shell can be firmly bonded to the two injection molded connectors respectively.

[0026] The assembling method of a vertical new type of automotive PCB board docking connector described above includes the following steps: preparing a row of pin pins and a plastic housing required for assembling the docking connector; wherein, the row of pin pins includes pin pins and a connecting strip for connecting each pin pin; injecting an injection connection body on the row of pin pins to connect the injection connection body with the row of pin pins to form an integral body; bending one end of the pin pins close to the connecting strip, and cutting off the connecting strip of the row of pin pins, so that the pin pins and the injection connection body form a row of pin terminals; stacking the row of pin terminals in pairs and inserting them into the terminal chamber of the plastic housing.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The pin pins of the row of pin terminals are fixed to the injection connection body in a way of embedded injection molding, so that the relative positions between the pin pins are kept fixed, which is convenient for processing the ends of the pin pins used to connect the PCB board to an aligned state, thereby ensuring the alignment accuracy between the pin pins and being beneficial to ensuring the flatness and ortho-position of the pins.

[0028] 2. The insertion direction of the fixed connecting piece and the plastic housing is perpendicular to the insertion and extraction direction of the docking connector, so that the fixed connecting piece can bear the insertion and extraction force during the use of the docking connector. The fixed connecting piece is connected to the PCB board through the bent welding part, which can increase the connection strength and reduce the situation of vibration and de-welding of the fixed connecting piece during use.

[0029] 3. The injection connection bodies of two rows of pin terminals are connected to the same double-fork pin, so that the double-fork pin can prevent the two rows of pin terminals from moving away from each other, strengthening the connection between the two rows of pin terminals and being beneficial to further improving the integrity of the two rows of pin terminals. Description of the Drawings

[0030] Figure 1 It is a schematic diagram of the PCB board docking connector in the plugged-in use state of Embodiment 1.

[0031] Figure 2 It is a schematic diagram of the overall structure of the PCB board docking connector of Embodiment 1.

[0032] Figure 3 It is a schematic diagram of the structure of the plastic housing of Embodiment 1.

[0033] Figure 4 It is a schematic diagram for showing the relative positional relationship between the row of pin terminals and the fixed connecting piece in Embodiment 1.

[0034] Figure 5 It is a schematic diagram of the structure of the row of pin terminals of Embodiment 1.

[0035] Figure 6It is a cross-sectional view of the row pin terminals of Embodiment 2.

[0036] Figure 7 It is a schematic diagram for reflecting the connection relationship between the plastic film layer and the pin in Embodiment 2.

[0037] Figure 8 It is a schematic diagram of the structure of the plastic housing of Embodiment 2.

[0038] Figure 9 It is a schematic diagram of the structure of the plastic housing of Embodiment 3.

[0039] Figure 10 It is a schematic diagram of the state where the double-sided tape is pasted on the plastic housing in Embodiment 3.

[0040] Explanation of reference numerals: 1. Plastic housing; 11. Terminal chamber; 12. Docking chamber; 13. Limiting notch; 14. Card interface; 15. Partition board; 16. Avoidance opening; 17. Card connection groove; 18. Side ear; 181. Ear hole; 19. Insertion slot; 2. Row pin terminals; 21. Pin; 211. Bent section; 212. Side bending part; 213. Arc notch; 22. Injection molding connection body; 221. Protrusion; 222. Groove; 223. Card connection protrusion; 224. Positioning protrusion; 225. Jack; 226. Plastic film layer; 227. Flexible filler layer; 228. Cutting surface; 3. Fixed connection piece; 31. Bent welding part; 4. Double fork pin; 41. Fork foot; 42. Connection section; 43. Pre-supporting piece; 5. Double-sided tape; 6. PCB board. Detailed implementation manners

[0041] The following further elaborates on the present application Figures 1-10 with reference to the accompanying drawings.

[0042] Embodiment 1 The embodiment of the present application discloses a vertical new type of automotive PCB board docking connector. Refer to Figure 1 , Figure 2 and Figure 3, the vertical new type automotive PCB board docking connector includes a plastic housing 1 and two row-connected pin terminals 2. The row-connected pin terminals 2 include an injection-molded connection body 22 and twelve pin pins 21. The injection-molded connection body 22 is of a long-strip structure, and the twelve pin pins 21 are arranged at equal intervals along the length direction of the injection-molded connection body 22. The pin pins 21 are fixed to the injection-molded connection body 22 in a way of embedded injection molding. The injection-molded connection bodies 22 of the two row-connected pin terminals 2 are overlapped with each other, and the overlapping surface between the injection-molded connection bodies 22 is parallel to the length direction of the injection-molded connection body 22. The plastic housing 1 includes a terminal chamber 11 and a docking chamber 12. The two injection-molded connection bodies 22 are inserted into the terminal chamber 11, one end of the pin pins 21 extends into the docking chamber 12, and the other end of the pin pins 21 extends to the outside of the plastic housing 1 for connecting to the PCB board 6.

[0043] Refer to Figure 2 , at one end of the pin pin 21 extending to the outside of the plastic housing 1, there is a bent section 211 with a 90-degree bend. The bent section 211 is used to connect to the PCB board 6, so as to increase the connection surface between the pin pin 21 and the PCB board 6. The bending directions of the bent sections 211 of the two row-connected pin terminals 2 are opposite. On the edges of the two side walls of the plastic housing 1, there is respectively a row of equally spaced limit notches 13. Each row of limit notches 13 is respectively used to position the bent section 211 of the pin pin 21 of one row-connected pin terminal 2. The limit notches 13 can form a limiting effect on the bent section 211 of the pin pin 21, which is beneficial to ensuring the flatness of the terminal.

[0044] Refer to Figure 2 and Figure 4 , at both ends of the plastic housing 1, there are respectively fixed connection pieces 3. The fixed connection pieces 3 are sheet metal parts, and the fixed connection pieces 3 are provided with bent welding parts 31. The bent welding parts 31 are used to connect to the PCB board 6. At both ends of the plastic housing 1, there are respectively insertion slots 19 for the fixed connection pieces 3 to be inserted. The insertion direction between the fixed connection pieces 3 and the insertion slots 19 is perpendicular to the insertion direction between the injection-molded connection body 22 and the plastic housing 1, that is, the insertion direction of the fixed connection pieces 3 and the plastic housing 1 is perpendicular to the insertion and extraction direction of the docking connector.

[0045] Refer to Figure 4 and Figure 5, on one side of the injection-molded connector 22, there are two protrusions 221 and two grooves 222. The shapes of the protrusions 221 and the grooves 222 are adapted to each other. The protrusions 221 and the grooves 222 are respectively arranged at both ends of the injection-molded connector 22. The positions of the two protrusions 221 and the two grooves 222 are symmetric about the midpoint along the length direction of the injection-molded connector 22. The two injection-molded connectors 22 are connected and matched through the protrusions 221 and the grooves 222. When the two injection-molded connectors 22 are superposed on each other, the protrusions 221 and the grooves 222 of one injection-molded connector 22 correspond and cooperate with the grooves 222 and the protrusions 221 of the other injection-molded connector 22.

[0046] The grooves 222 and the protrusions 221 can keep the two injection-molded connectors 22 aligned with each other, that is, the grooves 222 and the protrusions 221 serve as the limiting and aligning structures of the injection-molded connector 22; in another embodiment, the limiting protrusion structure can be replaced by a pin or a screw that connects the two injection-molded connectors 22 at the same time.

[0047] Refer to Figure 3 and Figure 4 , on the side of the injection-molded connector 22 away from the protrusions 221 and the grooves 222, there is a clamping protrusion 223. On both side walls of the plastic housing 1, there are respectively clamping ports 14 adapted to the clamping protrusion 223. The clamping protrusion 223 is provided with a guiding surface. When the two superposed injection-molded connectors 22 are inserted into the terminal chamber 11, the two superposed injection-molded connectors 22 can gradually expand the two side walls of the terminal chamber 11 through the guiding surface.

[0048] Refer to Figure 3 , inside the plastic housing 1, there is an integral partition plate 15. The partition plate 15 is used to separate the docking chamber 12 and the terminal chamber 11. The partition plate 15 is provided with two avoidance openings 16. The two avoidance openings 16 respectively correspond to the two rowed pin terminals 2. The avoidance openings 16 are used to avoid the pin pins 21; on the side of the injection-molded connector 22 close to the docking chamber 12, there is a positioning protrusion 224. The positioning protrusion 224 is adapted to the avoidance opening 16.

[0049] This embodiment also discloses an assembly method of the above-mentioned vertical new type of automotive PCB board docking connector, including the following steps: Step 1, prepare the rowed pin pins 21, the fixed connection piece 3 and the plastic housing 1 required for the assembly of the docking connector; among them, the rowed pin pins 21 include the pin pins 21 and the connection strip that connects each pin pin 21. The connection strip is provided with a plurality of positioning holes; Step 2, injection-mold the injection-molded connector 22 on the rowed pin pins 21 so that the injection-molded connector 22 and the rowed pin pins 21 are connected to form an integral body; Step 3: Bend one end of the pin 21 close to the connecting tape, and cut off the connecting tape of the row of pins 21, so that the pin 21 and the injection-molded connecting body 22 form a row of pin terminals 2; Step 4: Stack the row of pin terminals 2 in pairs and insert them into the terminal chamber 11 of the plastic housing 1; Step 5: Install and fix the connecting pieces 3 on both sides of the plastic housing 1.

[0050] The steps of the above steps 4-5 can be interchanged.

[0051] During the production process of the vertical new type of automotive PCB board docking connector according to the embodiment of the present application, the pins 21 of the row of pin terminals 2 are fixed to the injection-molded connecting body 22 in a pre-embedded injection molding manner, so that the relative positions between the pins 21 are kept fixed, facilitating the processing of the ends of the pins 21 for connecting the PCB board 6 to an aligned state, thereby ensuring the alignment accuracy between the pins 21 and being beneficial to ensuring the flatness and ortho-position of the terminals.

[0052] Embodiment 2 Refer to Figure 6 In this embodiment, the structure of the vertical new type of automotive PCB board docking connector is different from that of Embodiment 1. The differences are as follows: Two injection-molded connecting bodies 22 are commonly connected with a double fork pin 4. The material of the double fork pin 4 is steel wire. There are two double fork pins 4, and the two double fork pins 4 are arranged oppositely. The double fork pin 4 has two fork feet 41, and the part of the double fork pin 4 between the two fork feet 41 is the connecting section 42; The injection-molded connecting body 22 is provided with a jack 225, and the depth direction of the jack 225 is arranged along the length direction of the injection-molded connecting body 22. The two fork feet 41 of the double fork pin 4 are respectively inserted into the jacks 225 on the two injection-molded connecting bodies 22 correspondingly. When the two double fork pins 4 are arranged oppositely, both ends of the jack 225 are for the fork feet 41 of the double fork pin 4 to be inserted, and the ends of the fork feet 41 are set as tips.

[0053] The two fork feet 41 of the double fork pin 4 have a relatively pre-bent deformation amount, so that the double fork pin 4 has an elastic deformation force forcing the two injection-molded connecting bodies 22 to approach each other, making the two row of pin terminals 2 form a relatively stable whole.

[0054] Refer to Figure 6, a pre - support member 43 is provided between the two fork feet 41 of the double - fork needle 4. The material of the pre - support member 43 is a steel wire with the same wire diameter as that of the double - fork needle 4. The connection section 42 of the pre - support member 43 and the double - fork needle 4 is fixed by welding. The pre - support member 43 is located between the two fork feet 41 and there is a clearance margin between it and the two fork feet 41. Before the two fork feet 41 of the double - fork needle 4 are inserted into the jack 225, they respectively abut against the pre - support member 43. The two fork feet 41 gradually approach each other along the direction away from the connection section 42. At this time, the two double - fork needles 4 are already in a pre - bent and deformed state. When the two fork feet 41 are respectively inserted into the jack 225, the two fork feet 41 open up, increasing the amount of deformation of the two fork feet 41.

[0055] The fork foot 41 extends in a zigzag manner. The fork foot 41 is in an elastic deformation state of straightening inside the jack 225, making it difficult for the fork foot 41 to come out of the jack 225.

[0056] Refer to Figure 6 and Figure 7 , a plastic film layer 226 is provided on the inner wall of the jack 225, and a flexible filler layer 227 is provided between the fork foot 41 and the plastic film layer 226. The flexible filler layer 227 is in a state of compressive deformation.

[0057] The plastic film layer 226 is a multi - layer structure formed by continuously curling a plastic film. The flexible filler layer 227 is a flexible filler core material that fills the inner space of the plastic film layer 226 and is formed after being punctured by a rod - shaped tool.

[0058] Refer to Figure 6 and Figure 8 , the pin lead 21 of this embodiment is provided with a side - bending part 212. The side - bending part 212 is injection - molded and wrapped inside the injection - molded connection body 22. The bending line of the side - bending part 212 is parallel to the length direction of the pin lead 21. The side - bending part 212 is provided with an arc - shaped notch 213. The arc foot of the arc - shaped notch 213 is larger than a flat angle. The plastic film layer 226 passes through each arc - shaped notch 213 in turn. The two sides of the injection - molded connection body 22 are respectively provided with concave cutting surfaces 228, and the two ends of the jack 225 respectively penetrate through the two cutting surfaces 228.

[0059] Refer to Figure 6 and Figure 8 , the two sides of the plastic housing 1 are respectively provided with clamping grooves 17 for avoiding the connection section 42. The connection section 42 is clamped with the clamping grooves 17, strengthening the connection between the injection - molded connection body 22 and the plastic housing 1.

[0060] The assembly method of the vertical new - type automotive PCB board docking connector in this embodiment includes the following steps: Step 1, prepare the row of pin pins 21, fixed connection pieces 3, plastic housing 1 and fork pins required for the assembly of the docking connector; among them, the row of pin pins 21 includes pin pins 21 and a connecting strip for connecting each pin pin 21, and the connecting strip is provided with a number of positioning holes; a clamping groove 17 is reserved on the plastic housing 1; Step 2, pass the plastic film layer 226 filled with the flexible filler core material through each arc-shaped notch 213 of the row of pin pins 21 in turn; injection-mold an injection connection body 22 on the row of pin pins 21 so that the injection connection body 22 is connected to the row of pin pins 21 to form an integral body; after the injection connection body 22 is molded, cut surfaces 228 are formed at both ends of the injection connection body 22 to expose the plastic film layer 226 and the flexible filler layer 227; Step 3, bend one end of the pin pin 21 close to the connecting strip, and cut off the connecting strip of the row of pin pins 21 so that the pin pin 21 and the injection connection body 22 form a row of pin terminals 2; Step 4, stack the injection connection bodies 22 of the row of pin terminals 2 in pairs, and install two pin pins 21 on two mutually stacked injection connection bodies 22 so that the two fork feet 41 of each fork pin are respectively inserted into the flexible filler core materials located in the two injection connection bodies 22 one by one; Step 5, install the fixed connection pieces 3 on both sides of the plastic housing 1.

[0061] The connecting section 42 of the double fork pin 4 can form a clamping action with the clamping groove 17, so that the plugging and unplugging force received by the row of pin terminals 2 can act on the plastic housing 1 through the connecting section 42 of the double fork pin 4, which is beneficial to making the two rows of pin terminals 2 more stable and reliable during use.

[0062] Embodiment 3 Refer to Figure 9 and Figure 10 , the structure of the vertical new automotive PCB board docking connector in this embodiment is different from that in Embodiment 1. The differences are as follows: double-sided tapes 5 are respectively provided on the two inner side walls of the plastic housing 1. The double-sided tapes 5 are located in the terminal chamber 11. The double-sided tapes 5 are parallel to the length direction of the injection connection body 22, and the two double-sided tapes 5 are respectively adhesively bonded to the two injection connection bodies 22; a set of side ears 18 are respectively provided on the two outer side walls of the plastic housing 1. The positions of the two sets of side ears 18 respectively correspond to the two double-sided tapes 5. The number of each set of side ears 18 is set to be multiple. The multiple side ears 18 in the same group are arranged at intervals along the length direction of the injection connection body 22. The side ears 18 are provided with ear holes 181 for passing through rods. The distances from the ear holes 181 of each side ear 18 to the long axis center line of the plastic housing 1 first decrease and then increase.

[0063] The assembly method of the vertical new automotive PCB board docking connector in this embodiment includes the following steps: Step 1, prepare the row of pin pins 21, the fixed connection piece 3 and the plastic housing 1 required for the assembly of the docking connector; Step 2, injection mold the injection connection body 22 on the row of pin pins 21 so that the injection connection body 22 is connected to the row of pin pins 21 to form an integral body; Step 3, bend one end of the pin pins 21 close to the connecting strip, cut off the connecting strip of the row of pin pins 21, so that the pin pins 21 and the injection connection body 22 form a row of pin terminals 2; Step 4, bond double-sided tapes 5 on the two inner side walls of the plastic housing 1 respectively. The side of the double-sided tape 5 away from the inner wall of the plastic housing 1 is pre-bonded with release paper, and two straight rods are respectively inserted into two groups of side ears 18 on both sides of the plastic housing 1 to make the plastic housing 1 arch outwards; then stack the row of pin terminals 2 in pairs and insert them into the terminal chamber 11 of the plastic housing 1; then tear off the release paper and remove the two straight rods, so that the double-sided tapes 5 on both sides of the plastic housing 1 are respectively bonded to the two injection connection bodies 22; Step 5, install the fixed connection piece 3 on both sides of the plastic housing 1.

[0064] In this embodiment, the two inner side walls of the plastic housing 1 can be respectively bonded to the two injection connection bodies 22 through the double-sided tapes 5, so that the plastic housing 1 can be connected to the two injection connection bodies 22 to form a relatively stable integral structural member, thereby reducing the relative looseness between the plastic housing 1 and the two rows of pin terminals 2 after long-term use.

[0065] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A new vertical automotive PCB board docking connector, characterized in that: It includes a plastic housing (1) and two rowed pin terminals (2). The rowed pin terminals (2) include an injection molded connection body (22) and a plurality of pin pins (21). The injection molded connection body (22) is of a strip-shaped structure. The pin pins (21) are arranged at equal intervals along the length direction of the injection molded connection body (22). The pin pins (21) are fixed to the injection molded connection body (22) by means of embedded injection molding. The injection molded connection bodies (22) of the two rowed pin terminals (2) are overlapped with each other. The injection molded connection body (22) is provided with a limit alignment structure, and the limit alignment structure can keep the two injection molded connection bodies (22) aligned. The plastic housing (1) includes a terminal chamber (11) and a docking chamber (12). The two injection molded connection bodies (22) are inserted into the terminal chamber (11). One end of the pin pin (21) extends into the docking chamber (12), and the other end of the pin pin (21) extends to the outside of the plastic housing (1) for connecting to a PCB board (6).

2. The vertical new type automotive PCB board docking connector according to claim 1, characterized in that: One side of the injection molded connection body (22) is provided with a protrusion (221) and a groove (222). The shapes of the protrusion (221) and the groove (222) are adapted to each other. The two injection molded connection bodies (22) are connected and matched through the protrusion (221) and the groove (222). The protrusion (221) and the groove (222) serve as the limit alignment structure.

3. The vertical new type automotive PCB board docking connector according to claim 1, characterized in that: Fixing connection pieces (3) are respectively arranged at both ends of the plastic housing (1). The fixing connection pieces (3) are provided with bending welding parts (31). Insertion slots (19) for inserting the fixing connection pieces (3) are respectively arranged at both ends of the plastic housing (1). The insertion direction between the fixing connection pieces (3) and the insertion slots (19) is perpendicular to the insertion direction between the injection molded connection body (22) and the plastic housing (1).

4. A vertical new type of automotive PCB board docking connector according to claim 1, characterized in that: One end of the pin pin (21) extending out of the plastic housing (1) is provided with a bent section (211). The bending directions of the bent sections (211) of the two rowed pin terminals (2) are opposite. A row of limit notches (13) are respectively arranged at the edges of both side walls of the plastic housing (1). Each row of the limit notches (13) corresponds to the bent sections (211) of one rowed pin terminal (2), and the limit notches (13) are used for positioning the corresponding bent sections (211).

5. A vertical new type of automotive PCB board docking connector according to claim 1, characterized in that: Two of the injection molding connectors (22) are jointly connected to a double - pronged needle (4). There are two double - pronged needles (4), and the two double - pronged needles (4) are arranged oppositely. The double - pronged needle (4) has two fork feet (41), and the part between the two fork feet (41) of the double - pronged needle (4) is a connecting section (42). The injection molding connector (22) is provided with a jack (225). The depth direction of the jack (225) is arranged along the length direction of the injection molding connector (22). The two fork feet (41) of the double - pronged needle (4) are respectively inserted into the jacks (225) on the two injection molding connectors (22). Both ends of each jack (225) are for the fork feet (41) of the double - pronged needle (4) to be inserted. The double - pronged needle (4) has an elastic deformation force that forces the two injection molding connectors (22) to approach each other.

6. The vertical new type automotive PCB board docking connector according to claim 5, characterized in that: The inner wall of the jack (225) is provided with a plastic film layer (226). A flexible filler layer (227) is provided between the fork foot (41) and the plastic film layer (226), and the flexible filler layer (227) is in a state of being compressed and deformed.

7. The vertical new type automotive PCB board docking connector according to claim 6, characterized in that: The two sides of the injection molding connector (22) are respectively provided with concave cutting surfaces (228), and both ends of the jack (225) respectively penetrate through the two cutting surfaces (228).

8. The vertical new type automotive PCB board docking connector according to claim 5, characterized in that: The two sides of the plastic shell (1) are respectively provided with clamping grooves (17) for avoiding the connecting section (42).

9. The vertical new type automotive PCB board docking connector according to claim 1, characterized in that: The two inner side walls of the plastic shell (1) are respectively provided with double - sided tapes (5). The double - sided tapes (5) are located in the terminal chamber (11). The double - sided tapes (5) are parallel to the length direction of the injection molding connector (22). The two double - sided tapes (5) are respectively adhesively bonded to the two injection molding connectors (22). The two outer side walls of the plastic shell (1) are respectively provided with a group of side ears (18). The positions of the two groups of side ears (18) respectively correspond to the two double - sided tapes (5). The number of each group of side ears (18) is set to be multiple. The multiple side ears (18) in the same group are arranged at intervals along the length direction of the injection molding connector (22). The side ears (18) are provided with ear holes (181) for passing through rods. The distances from the ear holes (181) of each side ear (18) to the long - axis center line of the plastic shell (1) first decrease and then increase.

10. A method for assembling a vertical new type of automotive PCB board docking connector according to any one of claims 1-9, characterized in that, Including the following steps: Prepare the row - type pin leads (21) and the plastic shell (1) required for assembling the docking connector; among them, the row - type pin leads (21) include pin leads (21) and a connecting tape connecting each pin lead (21). Inject - mold the injection molding connector (22) on the row - type pin leads (21) so that the injection molding connector (22) is connected to the row - type pin leads (21) to form an integral body. Bend one end of the pin lead (21) close to the connecting tape, and cut off the connecting tape of the row - type pin leads (21) so that the pin lead (21) and the injection molding connector (22) form row - type pin terminals (2). Stack the row - type pin terminals (2) in pairs and insert them into the terminal chamber (11) of the plastic shell (1).

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