Embedded connector

Abstract

The invention relates to the technical field of connectors, in particular to an embedded connector, which solves the problem of low flexibility during model selection of connectors in the prior art, and comprises a sheath, at least one terminal group is arranged in the sheath, a plurality of terminals are arranged in each terminal group, a removable tail connecting material is arranged between the tails of two adjacent terminals, and the tail connecting material is arranged between the tails of the two adjacent terminals. And the tail connecting material is positioned outside the sheath. The invention has the beneficial effects that: when the board end connector is used, whether the tail connecting material is removed or not is selected according to actual use requirements, the number of the pins of the connector is adjusted by changing the arrangement of the tail connecting material, and the requirement of different pin numbers when the connector is used is met under the condition that the board end connector is not changed, so that the flexibility of connector type selection is improved; in the manufacturing process of the sheath of the connector, all the terminals are connected through the tail connecting material, it is easier to ensure that the relative positions of all the terminals in the sheath are accurate, and the manufacturing difficulty of the connector is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to an embedded connector. Background Art

[0002] A board - end connector is a connector with one end fixed on a circuit board. Most automotive products are equipped with board - end connectors, and power and signal transmission are achieved through the cooperation of board - end connectors and wire - end connectors. With the development of automotive electronics and intelligence, the traditional distributed architecture has gradually evolved into a domain - centralized architecture. The emergence of "domain controllers" has put forward higher requirements for the diversity and flexibility of board - end connectors by controller manufacturers.

[0003] The patent with the publication number CN208690576U in the prior art discloses a BMS board - end connector and a controller. The connector includes a housing having a relative interface end and a non - interface end. The interface end is provided with an interface for docking a wire - end connector; and a plurality of pins with one end located in the interface and the other end extending out of the non - interface end and bending downward; solder pads, the solder pads are respectively arranged on the left and right side parts of the housing, the bottom of the solder pad has at least one positioning plug extending out of the lower surface of the housing, and the top of the solder pad is not higher than the upper surface of the housing.

[0004] At present, the number of pins of the existing board - end connectors is fixed after production, which cannot meet the requirements of controller manufacturers for the diversity and flexibility of board - end connector selection. Summary of the Invention

[0005] The present invention provides an embedded connector, which solves the problems of low applicability and low flexibility in the selection of existing connectors.

[0006] The technical solution of the present invention is realized as follows: An embedded connector includes a sheath. At least one terminal group is provided in the sheath. A plurality of terminals are provided in each terminal group. A removable tail connecting material is provided between the tails of adjacent two terminals, and the tail connecting material is located outside the sheath. When the board - end connector is in use, it can be selected whether to remove the tail connecting material according to actual usage requirements. When the tail connecting material is not removed, adjacent two terminals can be regarded as one pin. When the tail connecting material is removed, adjacent two terminals can be regarded as two pins. By setting the tail connecting material, the adjustment of the number of pins of the connector is realized, and thus, under the condition that the wire - end connector and the board - end connector remain unchanged, the requirements for different numbers of pins during the use of the connector are met, the applicability of the connector is enhanced, and further the flexibility of connector selection is improved.

[0007] The middle part of the sheath is provided with a positioning connection part, and a positioning reference surface is arranged on the positioning connection part. When the board-end connector is used, the positioning reference surface fits with the surface of the connection cavity, and the positioning connector is connected to the connection cavity, ensuring the accurate installation position of the connector on the connection cavity.

[0008] The positioning connection part is provided with a connection hole, and a bushing is arranged in the connection hole. Knurling is arranged on the outer surface of the bushing, and the knurling ensures the stable connection between the bushing and the positioning connection part. A positioning hole is arranged in the center of the bushing, and the positioning hole is used for passing through a fixing bolt, and the fixing bolt connects the board-end connector and the connector cavity.

[0009] One side of the positioning connection part is provided with an interface; a hanging platform is arranged outside the interface. The interface cooperates with the wire-end connector. When the board-end connector is used, the hanging platform is connected to the wire-end connector, ensuring the stable connection between the board-end connector and the wire-end connector.

[0010] The head end of the terminal extends into the interface. After the board-end connector and the wire-end connector are inserted into each other, the terminal is connected to the socket in the wire-end connector.

[0011] The other side of the positioning connection part is provided with a sealing groove, and a sealing ring is arranged in the sealing groove. The sealing groove positions the sealing ring, ensuring the accurate installation position of the sealing ring; a plurality of annular protrusions are arranged on the sealing ring. After the board-end connector is installed in the connection cavity, the inner wall of the connector cavity presses the annular protrusions to realize the sealing between the connector and the connector cavity.

[0012] The sheath is provided with ribs, and the ribs are arranged on both sides of the sealing groove. The ribs cooperate with the inner wall of the connection cavity to ensure the consistent compression amount of the annular protrusions on the sealing ring.

[0013] The tail of the terminal is provided with a turning arm, and the turning angle of the turning arm is 0° to 90°. Through the arrangement of the terminals, 90° or 45° pins without bending are realized, meeting the requirements of the controller manufacturer for the flexibility of the connector.

[0014] The size of the fillet at the turning position of the terminal is R, and R ≥ k ⋅ L ⋅ t, where k = 0.2 to 0.5, L is the length of the turning arm of the terminal, and t is the material thickness. The minimum size of the fillet at the turning of the terminal is calculated through the length of the turning arm of the terminal and the thickness of the terminal, which can prevent the change of the pin position due to the change of stress during the use of the connector.

[0015] Two terminal groups arranged side by side are arranged in the sheath, and each terminal group includes a first terminal, a second terminal, a third terminal and a fourth terminal.

[0016] The beneficial effects produced by the present invention are as follows: 1. When using the board - end connector, it is possible to choose whether to remove the tail connecting material according to actual usage requirements. When the tail connecting material is not removed, two adjacent terminals can be regarded as one pin; when the tail connecting material is removed, two adjacent terminals can be regarded as two pins. By changing the setting of the tail connecting material, the number of pins of the connector can be adjusted, so as to meet the requirements of different numbers of pins during the use of the connector while the line - end connector and the board - end connector remain unchanged, enhancing the applicability of the connector and thus improving the flexibility of connector selection.

[0017] 2. Since the tails of the terminals in the connector are connected by the tail connecting material after the connector is manufactured and before it is used, during the manufacturing process of the connector's sheath, each terminal is connected by the tail connecting material, which is more likely to ensure the accurate relative position of each terminal within the sheath, effectively reducing the manufacturing difficulty of the connector.

[0018] 3. The 90° or 45° pins without bending can be achieved through the terminal arrangement, meeting the requirements of the controller manufacturer for the flexibility of the connector; in addition, the minimum fillet size of the turning position of the terminal can be determined according to the length of the short arm of the terminal, preventing the change in the position degree of the pin due to the change in stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is an exploded view of an embedded connector of the present invention; Figure 2 It is a schematic structure of the sheath Figure 1 ; Figure 3 It is a schematic structure of the sheath Figure 2 ; Figure 4 It is a schematic structure of the bushing; Figure 5 It is a schematic structure of the sealing ring; Figure 6 It is a schematic structure of the terminal; Figure 7 It is a schematic diagram of the connector in use Figure 1 ; Figure 8 It is a schematic diagram of the connector in use Figure 2 。

[0021] In the figure: 1. Sheath, 2. Bushing, 3. Sealing ring, 4. Terminal, 11. Interface, 12. Connection hole, 13. Sealing groove, 14. Rib, 15. Hanging platform, 16. Positioning connection part, 21. Positioning hole, 22. Knurling, 31. Annular protrusion, 41. First terminal, 42. Second terminal, 43. Third terminal, 44. Fourth terminal, 45. Scrap, 46. Tail connecting material, 47. Head connecting material, 48. Tape connecting material. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1, as Figure 1 , Figure 7 , Figure 8 shown, an embedded connector includes a sheath 1. At least one terminal group is provided inside the sheath 1. A plurality of terminals are provided in each terminal group. A removable tail connecting material 46 is provided between the tails of two adjacent terminals. The tail connecting material 46 is located outside the sheath 1. When the board-end connector is used, it can be selected whether to remove the tail connecting material 46 according to actual usage requirements. When the tail connecting material 46 between two adjacent terminals is not removed, the two adjacent terminals can be regarded as one pin. When the tail connecting material 46 between two adjacent terminals is removed, the two adjacent terminals can be regarded as two pins. That is, by setting the tail connecting material 46, the number of pins of the connector can be adjusted, so as to meet the requirements of different pin numbers during the use of the connector without changing the line-end connector and the board-end connector, enhance the applicability of the connector, and then improve the flexibility of connector selection.

[0024] Further, a positioning connection part 16 is provided in the middle of the sheath 1, and a positioning reference surface is provided on the positioning connection part 16. The positioning connection part 16 is arranged at the middle position of the sheath 1. When the board-end connector is used, the positioning reference surface is attached to the connection cavity, and the positioning connector is connected to the connection cavity to ensure the accurate axial installation position of the connector on the connection cavity.

[0025] Further, a connection hole 12 is provided on the positioning connection part 16, and a bushing 2 is provided in the connection hole 12. The bushing 2 is pressed into the connection hole 12 after the sheath 1 is injection-molded. In this embodiment, as Figure 2 shown, two connection holes 12 are provided on the positioning connection part 16, and a bushing 2 is provided in each connection hole 12; as Figure 4As shown, the outer surface of the bushing 2 is provided with knurling 22, and the knurling 22 contacts the inner wall of the connecting hole 12. The knurling 22 can increase the roughness of the surface of the bushing 2, thereby making the bushing 2 more firmly embedded in the connecting hole 12, thereby ensuring the installation stability of the bushing 2 on the sleeve 1; in addition, one side of the bushing 2 is flush with the positioning reference plane, so that the entire positioning reference plane can be fitted to the surface of the connecting cavity, thereby ensuring better air tightness; in addition, a positioning hole 21 is provided on the bushing 2, and the positioning hole 21 is used to pass a fixing bolt, and the fixing bolt connects the plate end connector and the connector cavity.

[0026] Further, if Figure 3 As shown, an interface 11 is provided on one side of the positioning connection part 16; a hanging platform 15 is provided outside the interface 11. The interface 11 cooperates with the line-end connector, and when the board-end connector is used, the hanging platform 15 is connected to the hanging structure on the line-end connector to ensure that the board-end connector and the line-end connector are connected stably and prevent the board-end connector from falling off.

[0027] Furthermore, the head end of the terminal extends into the interface 11. After the board-end connector and the line-end connector are plugged together, the socket in the line-end connector enters the interface 11, and the head end of the terminal is connected to the socket in the line-end connector, thereby realizing the connection between the board-end connector and the line-end connector.

[0028] Embodiment 2, based on embodiment 1, an embedded connector, such as Figure 3 , Figure 5 As shown, a sealing groove 13 is provided on the other side of the positioning connection portion 16, and a sealing ring 3 is provided in the sealing groove 13. The sealing groove 13 positions the sealing ring 3 to ensure that the sealing ring 3 is accurately installed on the sheath 1; a plurality of annular protrusions 31 are provided on the sealing ring 3. In this embodiment, the sealing ring 3 is provided with three annular protrusions 31 arranged side by side. After the board-end connector is installed, the annular protrusions 31 contact the inner wall of the connection cavity, and the annular protrusions 31 are squeezed and deformed by the inner wall of the connection cavity, thereby achieving sealing between the board-end connector and the connection cavity.

[0029] Further, if Figure 2 , Figure 3 As shown, the sleeve 1 is provided with ribs 14, which are arranged on both sides of the sealing groove 13. In this embodiment, six ribs 14 are respectively arranged on both sides of the sealing groove 13, of which two ribs 14 are arranged on the left and right sides of the sleeve 1, and the other four ribs 14 are arranged on the front and back sides of the sleeve 1; when the board-end connector is installed, the ribs 14 are matched with the inner wall gap of the connection cavity, and the ribs 14 play a positioning role for the sleeve 1, thereby ensuring that the board-end connector is accurately installed in the connection cavity. At the same time, the ribs 14 cooperate with the inner wall of the connection cavity, which can ensure that the compression amount of the annular protrusion 31 on the sealing ring 3 is consistent, thereby ensuring the reliability of the seal.

[0030] Furthermore, a turning arm is provided at the tail of the terminal, and the turning angle of the turning arm is 0° to 90°. In this embodiment, as Figure 7 , Figure 8 shown, the turning angle of the turning arm of the terminal is 90°. After the terminal turns, the tails of all terminals are flush, and the distance between all terminals after the terminal turns is the same as the distance between all terminals before the terminal turns.

[0031] Furthermore, the size of the fillet at the turning position of the terminal is R, and R ≥ k ⋅ L ⋅ t, where k = 0.2 to 0.5, L is the length of the turning arm of the terminal, and t is the material thickness. By calculating the minimum size of the turning fillet of the terminal based on the length of the turning arm of the terminal and the thickness of the terminal, it is possible to prevent the change in the pin position due to the change in stress when the connector is in use.

[0032] Embodiment 3, based on Embodiment 2, an embedded connector, in which two terminal groups arranged side by side are provided in the sheath 1, and each terminal group includes a first terminal 41, a second terminal 42, a third terminal 43, and a fourth terminal 44. As Figure 6 shown, the terminal group is made by blanking or laser cutting the material plate. After blanking or laser cutting is completed, the terminal group is connected with a waste 45 through a strip connecting material 48. Between the heads of two adjacent terminals in each terminal group, they are connected through a head connecting material 47, and between the tails of two adjacent terminals in each terminal group, they are connected through a tail connecting material 46; after removing the waste 45, the head connecting material 47, and the strip connecting material 48, the terminals are embedded in the sheath 1 by injection molding. During the injection molding process of the sheath 1, between the heads of two adjacent terminals, they are connected through the tail connecting material 46; the tail connecting material 46 can connect all the terminals into a whole, and can ensure the fixation of the relative positions of all the terminals during the injection molding of the sheath, and further can ensure the accurate embedding position of all the terminals in the sheath.

[0033] Furthermore, in this embodiment, k = 0.3, the length of the first terminal 41 is 5 mm, the length of the second terminal 42 is 7 mm, the length of the third terminal 43 is 10 mm, the length of the fourth terminal 44 is 12 mm, the turning angles of the first terminal 41, the second terminal 42, the third terminal 43, and the fourth terminal 44 are all 90°, and the thicknesses of the first terminal 41, the second terminal 42, the third terminal 43, and the fourth terminal 44 are all 0.75 mm. After calculation, it can be known that the minimum size of the turning fillet of the first terminal 41 is 0.5 mm, the minimum size of the turning fillet of the second terminal 42 is 0.6 mm, the minimum size of the turning fillet of the third terminal 43 is 0.7 mm, and the minimum size of the turning fillet of the fourth terminal 44 is 0.8 mm.

[0034] Furthermore, as Figure 7As shown, when the actual usage requirement of the connector is two pins, two terminal groups are arranged side by side in the sheath 1, and adjacent two terminals in each terminal group are connected by the tail connecting material 46. At this time, each terminal group is equivalent to one pin, that is, the board-end connector has two pins.

[0035] Embodiment 4, different from Embodiment 3, an embedded connector, as Figure 8 shown, when the actual usage requirement of the connector is eight pins, two terminal groups are arranged side by side in the sheath 1, and all the tail connecting materials 46 between the terminals in the two terminal groups are removed so that there is no connection between the terminals. At this time, the terminals in each terminal group are equivalent to four pins, that is, the board-end connector has eight pins.

[0036] Embodiment 5, different from Embodiment 3, an embedded connector. When the actual usage requirement of the board-end connector is five pins, two terminal groups are arranged side by side in the sheath 1. Among them, adjacent two terminals in one terminal group are connected by the tail connecting material 46, and all the tail connecting materials 46 between the terminals in the other terminal group are removed so that there is no connection between the terminals. At this time, one terminal group is equivalent to one pin, and the terminals in the other terminal group are equivalent to four pins, that is, at this time the board-end connector has five pins.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An embedded connector, comprising a sheath (1), characterized in that, At least one terminal group is provided inside the sheath (1), and a plurality of terminals are provided in each terminal group. A removable tail connecting material (46) is provided between the tails of two adjacent terminals, and the tail connecting material (46) is located outside the sheath (1).

2. The embedded connector according to claim 1, characterized in that, A positioning and connecting portion (16) is provided in the middle of the sheath (1), and a positioning reference surface is provided on the positioning and connecting portion (16).

3. The embedded connector according to claim 2, characterized in that, A connecting hole (12) is provided on the positioning and connecting portion (16), and a bushing (2) is provided in the connecting hole (12).

4. The embedded connector according to claim 2 or 3, characterized in that, An interface (11) is provided on one side of the positioning and connecting portion (16); a hanging platform (15) is provided outside the interface (11).

5. The embedded connector according to claim 4, wherein The head end of the terminal extends into the interface (11).

6. The embedded connector according to any one of claims 2, 3, and 5, characterized in that A sealing groove (13) is provided on the other side of the positioning and connecting portion (16), and a sealing ring (3) is provided in the sealing groove (13).

7. The embedded connector according to claim 6, wherein Ribs (14) are provided on the sheath (1), and the ribs (14) are arranged on both sides of the sealing groove (13).

8. The embedded connector according to any one of claims 1, 5, and 7, characterized in that, The tail of the terminal is provided with a turning arm, and the turning angle of the turning arm is 0° to 90°.

9. The embedded connector according to claim 8, wherein The dimension of the fillet at the turning position of the terminal is R, and R ≥ k ⋅ L ⋅ t, where k = 0.2 ∼ 0.5, L is the length of the turning arm of the terminal, and t is the material thickness.

10. The embedded connector according to claim 1 or 9, characterized in that, Two terminal groups arranged side by side are provided inside the sheath (1), and each terminal group includes a first terminal (41), a second terminal (42), a third terminal (43) and a fourth terminal (44).

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