Pinout connector

Abstract

The utility model relates to the field of electric connector discloses a row pin connector, including plastic shell and row pin, the row pin has the end of inserting in plastic shell and the external connection end in the plastic shell when the insertion end is inserted in plastic shell, the protection part of the external connection end is sleeved outside is detachably connected on the plastic shell, the utility model discloses detachably setting the protection part on the plastic shell, can install it on the plastic shell when the plastic shell and row pin cooperate each other, not only the part of row pin exposed is shielded to promote the service life of row pin and the use of protection effect, prevent row pin from being deformed by external knock, simultaneously, the protection part can also support the part of row pin that projects outside plastic shell, guarantee the row pin steady, further promote the effect of preventing row pin from deforming.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a pin header connector. Background Technology

[0002] An electrical connector is a key component used to connect electrical devices. Its core function is to transmit current, signals, or data, ensuring reliable communication and energy exchange between components. It typically consists of a plug, a socket, and internal conductors, establishing a conductive path through tight contacts and using insulating materials to isolate different circuits. Electrical connectors are widely used in electronic equipment, communication systems, industrial machinery, automotive electronics, and aerospace, possessing characteristics such as waterproofing, dustproofing, vibration resistance, and electromagnetic interference resistance to adapt to complex environments.

[0003] As a type of electrical connector, pin header connectors mainly consist of a plastic housing and pin headers inserted into the housing. The pin headers are the core for transmitting current, signals, or data, while the plastic housing provides support and protection for the pin headers, serving an insulating function. However, typically only the middle insertion section of the pin header is inserted into the plastic housing, while both ends protrude outside. For excessively long pin headers, the excessive exposure increases the risk of short circuits and contact damage. Furthermore, the pin sections near the insertion ends are prone to skewing due to lack of protection, resulting in poor stability. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pin header connector to solve the problem of excessive exposed pins.

[0005] To solve the above-mentioned technical problems, the present invention provides a pin header connector including a plastic housing and pin headers. The pin headers have an insertion end inserted into the plastic housing and an external end located outside the plastic housing when the insertion end is inserted into the plastic housing. A protective part sleeved on the external end is detachably connected to the plastic housing.

[0006] Furthermore, the protective part is provided with a limiting structure, and the plastic shell has an insertion surface. The insertion surface is provided with a mating structure that cooperates with the limiting structure to lock the protective part onto the plastic shell. A first side is formed on one side of the protective part along the installation direction, and the limiting structure is disposed on the first side. The limiting structure has a first limiting surface and a second limiting surface. The mating structure has a first abutting surface for abutting against the first limiting surface and a second abutting surface for abutting against the second limiting surface when the protective part is installed on the plastic shell along an installation direction. The first abutting surface is used to limit the first limiting surface from moving forward along the installation direction, and the second abutting surface is used to limit the second limiting surface from moving backward along the installation direction.

[0007] Furthermore, the limiting structure includes two elastic arms extending from the first side along the installation direction and spaced apart, and a supporting wall protruding from the first side along the installation direction. Hooks are protruding from the two elastic arms facing away from each other. The first limiting surface is formed on the side of the hooks close to the first side, and the second limiting surface is formed on the side of the supporting wall away from the first side. The mating structure includes a retaining wall protruding from the insertion surface and a through-hole corresponding to the two elastic arms opening on the retaining wall along the installation direction. The second supporting surface is formed on the side of the retaining wall facing the protective part along the installation direction. A guide step is protruding in the through-hole. The guide step slides in a guide engagement with the hooks, and the first supporting surface is formed on the guide step.

[0008] Furthermore, a receiving cavity is formed within the protective part, the receiving cavity extending through a first side of the protective part along the installation direction to form a first opening, and the external end passing through the first opening along the installation direction into the receiving cavity; the protective part has a socket that communicates with the receiving cavity and is made visible when the external end passes through the receiving cavity; the pin header also has a connecting section connected to the external end, and the side of the socket facing the receiving cavity is wide-mouthed and used to allow the connecting section to pass through the socket and exit the protective part.

[0009] Furthermore, the protective part has a second side formed on the side away from the first side along the installation direction, and the insertion port is formed on the second side; the external end of the pin extends along the installation direction after being bent from the insertion end, and a second opening is formed on the protective part to connect the first opening and the receiving cavity, the second opening allowing the external end of the protective part to pass into the receiving cavity when it moves along the installation direction.

[0010] Furthermore, the second opening has first abutting edges formed on both sides for abutting against the insertion surface along the insertion direction of the insertion end; the second opening also has a second abutting edge perpendicular to the first abutting edge and abutting against the plastic shell.

[0011] Furthermore, the plastic housing has a mating surface on the side away from the insertion surface along an insertion direction. The plastic housing has an insertion cavity that penetrates the insertion surface and a mating cavity that connects the insertion cavity and penetrates the mating surface in sequence along the insertion direction. The insertion end includes a mating segment for passing through the mating cavity and an insertion segment for tightly fitting into the insertion cavity. The external end is connected to the insertion segment.

[0012] Furthermore, a reinforcing part is provided on the insertion surface at the position corresponding to the insertion segment, which covers the periphery of the protective part when it is installed on the plastic shell. The reinforcing part has a holding cavity extending from the insertion cavity along the insertion direction to communicate with it, and a transition cavity communicating with the holding cavity and passing through one side of the reinforcing part along the installation direction to allow the external end to pass through. The insertion segment is tightly fitted in the insertion cavity and the holding cavity, and the external end is bent out from the transition cavity.

[0013] Furthermore, the transition cavity extends through the reinforcing part along the insertion direction to the side away from the insertion surface; the inner wall of the transition cavity is curved to provide an arc surface on which the external end is supported.

[0014] Furthermore, the pin header is configured in two rows, and the insertion cavity, holding cavity, and curved surface are all adapted to be configured in two rows and are all connected to the same pair of insertion cavities. The two rows of curved surfaces are staggered in the installation direction and the insertion direction so that the two rows of external ends are spaced apart in the insertion direction. The external ends have a first section located inside the protective part and a second section extending outside the protective part in sequence. Between the first section and the second section of one row of external ends, there is also an inclined section that is inclined to increase the interval between the two rows of second sections.

[0015] The pin header connector of this utility model has at least the following beneficial effects: by providing a detachable protective part on the plastic housing, it can be installed on the plastic housing when the plastic housing and the pin header are mated together. This not only shields the exposed part of the pin header to improve the protection effect and the service life of the pin header, preventing the pin header from being deformed by external impacts; at the same time, the protective part can also support the part of the pin header that extends out of the plastic housing, ensuring the stability of the pin header and further improving the effect of preventing pin header deformation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the pin header connector of this utility model; Figure 2 This is a top view of the pin header connector of this utility model; Figure 3 for Figure 2 An enlarged view of part A shown; Figure 4 This is a half-sectional schematic diagram of the pin header connector of this utility model; Figure 5 This is a schematic diagram of the structure of the plastic shell of this utility model; Figure 6 This is a side sectional view of the plastic shell of this utility model; Figure 7 This is a schematic diagram of the protective part of this utility model. The meanings of the labels in the attached diagram are as follows: Plastic housing 1, insertion surface 111, mating surface 112, insertion cavity 121, mating cavity 122, reinforcing part 13, holding cavity 131, transition cavity 132, curved surface 133, pin header 2, insertion end 21, mating section 211, insertion section 212, external end 22, first section 221, second section 222, inclined section 223, connecting section 23, protective part 3, receiving cavity 31, first side 321, second side 322, first opening 3 31. Second opening 332. First abutting edge 333. Second abutting edge 334. Insertion 34. Limiting structure 35. Elastic arm 351. Abutting wall 352. Second limiting surface 3521. Hook 353. First limiting surface 3531. First guide slope 3532. Matching structure 36. Retaining wall 361. Second abutting surface 3611. Through opening 362. Guide step 363. Second guide slope 3631. First abutting surface 3632. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please see Figures 1 to 7 The pin header connector of this utility model includes a plastic housing 1, a pin header 2 with one end inserted into the plastic housing 1, and a protective part 3 detachably connected to the plastic housing 1 and sleeved on the other end of the pin header 2. The pin header 2 is configured as at least one row; in this embodiment, the pin header 2 is configured as two rows.

[0019] Please see Figures 4 to 6 The plastic housing 1 has a rectangular parallelepiped structure, but is not limited to this structure. Therefore, the plastic housing 1 has length, width, and height. The direction of height is defined as the insertion direction. Two sides of the plastic housing 1 along the insertion direction are respectively configured as insertion surfaces 111 and mating surfaces 112. Therefore, the mating surface 112 is located on the side of the plastic housing 1 away from the insertion surface 111 along the insertion direction. The plastic housing 1 has insertion cavities 121 that penetrate the insertion surfaces 111 and mating cavities 122 that connect the insertion cavities 121 and penetrate the mating surfaces 112, sequentially formed along the insertion direction. The insertion cavities 121 correspond to the two rows of pins 2 and are arranged in two rows with the same number of pins 2. Each row of insertion cavities 121 has multiple cavities, evenly spaced along the length. The mating cavity 122 is a single cavity that connects to all insertion cavities 121 and is used to insert a complementary connector. The side of the plastic housing 1 where the mating surface 112 is located can be configured as a narrow structure, while the side of the mating cavity 122 that passes through the mating surface 112 can be configured as a wide opening to facilitate the insertion of the complementary connector.

[0020] In this embodiment, a reinforcing part 13 is provided on the insertion surface 111 at a position corresponding to the insertion cavity 121, and is covered by the protective part 3 when the protective part 3 is installed on the plastic shell. The reinforcing part 13 has a cuboid structure and its length, width, and height are aligned with the orientation of the plastic shell 1. The reinforcing part 13 has a holding cavity 131 extending from the insertion cavity 121 along the insertion direction toward the side away from the insertion cavity 121 and communicating with the insertion cavity 121, and a transition cavity 132 communicating with the holding cavity 131 and penetrating one side of the reinforcing part 13 along an installation direction so that the pin header 2 can pass through. The transition cavity 132 penetrates the side of the reinforcing part 13 away from the insertion surface 112 along the insertion direction so that the pin header 2 can pass into the transition cavity 132 and the insertion cavity 121 along the insertion direction. The supporting cavity 131 and the insertion cavity 121 are identical in shape and size and are uniformly extended from the insertion cavity 121. The transition cavity 132 has an arc surface 133 formed by bending from the inner wall of the supporting cavity 131. The arc surface 133 can be used to support irregularly shaped or bent pins 2. The insertion cavity 121, the supporting cavity 131 and the arc surface 133 are all adapted to be arranged in two rows and are all connected to the same pair of insertion cavities 122. The two rows of arc surfaces 133 are staggered in the installation direction and the insertion direction. Thus, one row of arc surfaces 133 is higher than the other row of arc surfaces 133 in the insertion direction.

[0021] Please see Figure 4 The pin header 2 has an insertion end 21 inserted into the plastic housing 1, an external end 22 located outside the plastic housing 1 when the insertion end 21 is inserted into the plastic housing 1, and a connecting section 23 connected to the external end 22. In this embodiment, the insertion ends 21 are distributed along the insertion direction, the external end 22 is bent along the width direction after being bent from the insertion end 21, and the connecting section 23 extends along the width direction from the external end 22. Correspondingly, the transition cavity 132 extends through one side of the reinforcing part 13 along the width direction so that the external end 22 can pass through the side wall of the reinforcing part 13 and be supported on the curved surface 133, so that the two rows of external ends 22 are arranged at intervals in the insertion direction. The insertion end 21 includes a mating section 211 for passing through the mating cavity 122 and an insertion section 212 for tightly fitting into the insertion cavity 121, and the external end 22 is connected to the insertion section 212.

[0022] In use, the insertion end 21 of the pin header 2 passes through the holding cavity 131 and the insertion cavity 121 sequentially from the transition cavity 132 along the insertion direction and enters the mating cavity 122. The mating segment 211 enters the mating cavity 122, and the insertion segment 212 enters the insertion cavity 121, so that after the complementary connector enters the insertion cavity 121, the insertion end 21 can cooperate with the complementary connector to achieve conduction. The insertion segment 212 is tightly fitted in the insertion cavity 121 and the holding cavity 131. The external end 22 is bent out from the transition cavity 132 and then supported on the curved surface 133 before exiting the transition cavity 132. In order to increase the spacing between the external ends 22, the external ends 22 have a first section 221 located inside the protective part 3 and a second section 222 extending out of the protective part 3. Between the first section 221 and the second section 222 of one row of external ends 22, there is also an inclined section 223 that is inclined to increase the spacing between the two rows of second sections 222.

[0023] Please see Figures 1 to 7 The protective part 3 has a rectangular parallelepiped structure and is hollow inside, allowing it to be fitted onto the outer end 22. A receiving cavity 31 is formed within the protective part 3, extending along the installation direction through one side of the protective part 3 to form a first opening 331. The outer end 22 passes through the receiving cavity 31 from the first opening 331 along the installation direction. In this invention, to facilitate the cooperation between the pin header 2 and the protective part 3, and to facilitate the installation between the protective part 3 and the plastic housing 1, the installation direction is arranged along the width direction. Correspondingly, the outer end 22 of the pin header 2 extends along the installation direction. After the protective part 3 is installed on the plastic housing 1, it covers the reinforcing part 13. The two rows of pin headers 2 have multiple columns, and the receiving cavities 31 are set corresponding to the number of columns of the pin headers 2, with one column of pin headers 2 corresponding to one receiving cavity 31.

[0024] The protective part 3 has two sides along the installation direction, namely a first side 321 and a second side 322. The first side 321 and the second side 322 are far apart from each other relative to the protective part 3. A first opening 331 is formed on the first side 321. On the protective part 3, in order to facilitate the insertion end 21 bent relative to the external end 22 to pass through the protective part 3, a second opening 332 is formed on the protective part 3 to connect the first opening 331 and the receiving cavity 31. The second opening 332 allows the external end 22 to pass into the receiving cavity 31 when the protective part 3 moves along the installation direction, thereby facilitating the installation of the protective part 3, while the pin header 2 does not affect the installation of the protective part 3. The second opening 332 is located on the side of the protective part 3 along the insertion direction close to the insertion surface 112 and is L-shaped with the first opening 331. Thus, the protective part 3 forms two first side 321 walls distributed along the length direction and two second side 322 walls respectively connected to the two first side 321 walls. On both sides of the second opening 332, first abutting edges 333 are formed on the two first side walls 321 for abutting against the insertion surface 111 along the insertion direction of the insertion end 21. A second abutting edge 334, perpendicular to the first abutting edge 333 and abutting against the plastic housing, is also formed on the protective part 3 at the second opening 332. After the protective part 3 is installed on the plastic housing 1, the first abutting edge 333 abuts against the insertion surface 111, while the second abutting edge 334 abuts against the outer wall of the plastic housing 1 adjacent to the insertion surface 111, so that the first opening 331 and the second opening 332 respectively limit the protective part 3 along the insertion direction and the installation direction. To save material and to ensure that the reinforcing part 13 and the protective part 3 do not interfere with each other, a hollow portion is formed within the inner walls of the two first side walls 321 and the second side walls 322, with the receiving cavity 31 flush with the second abutting edge 334.

[0025] The protective part 3 has a socket 34 that communicates with the receiving cavity 31 and is made visible when the external terminal 22 is inserted into the receiving cavity 31. The socket 34 is formed on the second side 322 of the protective part 3 so that the connecting section 23 extends out of the socket 34 in the installation direction to connect with the circuit board or other electrical device. The side of the socket 34 facing the receiving cavity 31 is wide and is used to allow the connecting section 23 to pass through the socket 34 and extend out of the protective part 3.

[0026] In this embodiment, a limiting structure 35 is provided on the protective part 3, wherein the limiting structure 35 is located on the first side 321 of the protective part 3, and a mating structure 36 is provided on the insertion surface 111 to cooperate with the limiting structure 35 to lock the protective part 3 onto the plastic shell.

[0027] The limiting structure 35 includes two elastic arms 351 extending from the first side 321 of the protective part 3 along the installation direction and spaced apart, and a retaining wall 352 protruding from the first side 321 along the installation direction. The two elastic arms 351 extend from the two walls of the first side 321 along the installation direction toward the side away from the protective part 3, respectively. The retaining wall 352 extends along the installation direction on the first side 321 of the second side 322 wall, and the two sides of the retaining wall 352 along the longitudinal direction are spaced apart from the two elastic arms 351, so that the two elastic arms 351 have clearance space relative to the retaining wall 352. Hook portions 353 protrude from opposite sides of the two elastic arms 351. The hook portions 353 have a first limiting surface 3531 located near the first side 321 and parallel to the longitudinal and insertion directions, and a first guide slope 3532 along the installation direction away from the receiving cavity 31 relative to the first limiting surface 3531. A second limiting surface 3521 is formed on the side of the abutting wall 352 away from the first side 321 (or the accommodating cavity 31), wherein the second limiting surface 3521 is closer to the accommodating cavity 31 in the installation direction relative to the end of the elastic arm 351, so that the extension wall is shorter than the elastic arm 351.

[0028] The mating structure 36 includes a retaining wall 361 protruding from the insertion surface 111 and through-holes 362 corresponding to the two elastic arms 351, formed on the retaining wall 361 along the installation direction. The retaining wall 361 extends from the side of the insertion surface 111 away from the reinforcing part 13 along the installation direction. The side of the retaining wall 361 facing the protective part 3 or the reinforcing part 13 along the installation direction is a second abutting surface 3611, which abuts against a second limiting surface 3521 when the protective part 3 is installed on the plastic housing along the installation direction. Two through-holes 362 are formed and formed on the retaining wall 361 along the installation direction, corresponding to the two elastic arms 351. Both through-holes 362 penetrate the retaining wall 361 along the installation direction. A guide step 363 protrudes from the side of each through-hole 362 facing the hook part 353, and the guide step 363 slides in a guide-sliding engagement with the hook part 353. The guide step 363 has a second guide ramp 3631 parallel to the first guide ramp 3532 and a first abutting surface 3632 parallel to the first limiting surface 3531. The first abutting surface 3632 abuts against the first limiting surface 3531 when the protective part 3 is installed on the plastic housing along the installation direction. The first abutting surface 3632 restricts the first limiting surface 3531 from moving forward along the installation direction, and the second abutting surface 3611 restricts the second limiting surface 3521 from moving backward along the installation direction.

[0029] The working method of one embodiment of the pin header 2 connector of this utility model is as follows: The insertion end 21 of the pin header 2 is sequentially inserted into the transition cavity 132, the holding cavity 131, the insertion cavity 121 and the mating cavity 122, so that the outer end 22 is supported on the corresponding curved surface 133 and extends along the installation direction toward the side away from the retaining wall 361. The elastic arm 351 and the side of the abutting wall 352 of the protective part 3 are moved toward the retaining wall 361 and then the protective part 3 is moved along the installation direction, so that the connecting section 23 passes through the corresponding socket 34 and the elastic arm 351 gradually passes through the through hole 362. During the process of opening 362, the first guide slope 3532 and the second guide slope 3631 guide each other, causing the elastic arm 351 to be squeezed and deformed inward until the hook 353 passes through the guide step 363. Then, the second abutting surface 3611 abuts against the second limiting surface 3521, and the first abutting surface 3632 can abut against the first limiting surface 3531. The first abutting surface 3632 can also have a certain gap with the first limiting surface 3531, so that it can pass through the guide step 363 and be inserted into the opening 362. The protective part 3 is covered on the reinforcing part 13 and the outer end 22 is covered on its inner side.

[0030] Compared with the prior art, the pin header 2 connector of this utility model improves the support and stability of the pin header 2, while shielding and protecting the exposed external end 22. Furthermore, the detachable protective part 3 does not increase the production difficulty of the plastic housing 1 and the protective part 3, thus making installation and disassembly simple.

Claims

1. A pin header connector, comprising a plastic housing and pin headers, characterized in that: The pin header has an insertion end that is inserted into a plastic housing and an external end that is located outside the plastic housing when the insertion end is inserted into the plastic housing. A protective part that is sleeved on the external end is detachably connected to the plastic housing.

2. The pin header connector as described in claim 1, characterized in that: The protective part is provided with a limiting structure, and the plastic shell has an insertion surface. The insertion surface is provided with a cooperating structure that cooperates with the limiting structure to lock the protective part onto the plastic shell. The protective part has a first side formed on one side along the installation direction, and the limiting structure is disposed on the first side; The limiting structure has a first limiting surface and a second limiting surface. The mating structure has a first abutting surface for abutting against the first limiting surface when the protective part is installed on the plastic shell in an installation direction, and a second abutting surface for abutting against the second limiting surface. The first abutting surface is used to limit the first limiting surface from moving forward in the installation direction, and the second abutting surface is used to limit the second limiting surface from moving backward in the installation direction.

3. The pin header connector as described in claim 2, characterized in that: The limiting structure includes two elastic arms that extend from the first side along the installation direction and are spaced apart, and a supporting wall that protrudes from the first side along the installation direction. Hooks are protruding from the two elastic arms in opposite directions. The first limiting surface is formed on the side of the hooks that is close to the first side, and the second limiting surface is formed on the side of the supporting wall that is away from the first side. The mating structure includes a retaining wall protruding from the insertion surface and a through opening on the retaining wall corresponding to the two elastic arms along the installation direction. The second abutting surface is formed on the side of the retaining wall facing the protective part along the installation direction. A guide step is protruding in the through opening. The guide step is guided and slidably engaged with the hook. The first abutting surface is formed on the guide step.

4. The pin header connector as described in claim 2, characterized in that: The protective part has a receiving cavity formed inside, and the receiving cavity extends through the first side of the protective part along the installation direction to form a first opening. The external end passes through the receiving cavity from the first opening along the installation direction. The protective part has an insertion port that communicates with the accommodating cavity and is made visible when the external end is inserted into the accommodating cavity; The pin header also has a connecting section connected to the external end, and the socket is wide-mouthed on the side facing the receiving cavity and is used to allow the connecting section to pass through the socket and out of the protective part.

5. The pin header connector as described in claim 4, characterized in that: The protective part has a second side formed on the side away from the first side along the installation direction, and the socket is formed on the second side; The outer end of the pin header extends along the installation direction after being bent from the insertion end. A second opening is formed on the protective part, which connects the first opening and the receiving cavity. The second opening allows the outer end of the protective part to pass into the receiving cavity when the protective part moves along the installation direction.

6. The pin header connector as described in claim 5, characterized in that: The second opening has first abutting edges formed on both sides for abutting against the insertion surface along the insertion direction of the insertion end; The second opening also has a second abutment edge that is perpendicular to the first abutment edge and abuts against the plastic shell.

7. The pin header connector as described in claim 2, characterized in that: The plastic shell has a mating surface on one side away from the insertion surface along an insertion direction. The plastic shell has an insertion cavity that penetrates the insertion surface and a mating cavity that connects the insertion cavity and penetrates the mating surface in sequence along the insertion direction. The insertion end includes a mating segment for passing through the mating cavity and an insertion segment for tightly fitting into the insertion cavity. The external end is connected to the insertion segment.

8. The pin header connector as described in claim 7, characterized in that: The insertion surface is provided with a reinforcing part protruding at the position corresponding to the insertion segment, which covers the outer periphery of the protective part when it is installed on the plastic shell. The reinforcing part has a holding cavity extending from the insertion cavity along the insertion direction to communicate with it, and a transition cavity communicating with the holding cavity and passing through one side of the reinforcing part along the installation direction so that the external end can pass through. The insertion segment is tightly fitted in the insertion cavity and the holding cavity, and the external end is bent out from the transition cavity.

9. The pin header connector as described in claim 8, characterized in that: The transition cavity extends through the reinforcing part along the insertion direction to the side away from the mating surface; The transition cavity has a self-supporting curved inner wall for the external end to be supported on.

10. The pin header connector as described in claim 9, characterized in that: The pin header is configured in two rows, and the insertion cavity, holding cavity and curved surface are all adapted to be configured in two rows and are all connected to the same pair of insertion cavities. The two rows of curved surfaces are staggered in the installation direction and the insertion direction so that the two rows of external terminals are arranged at intervals in the insertion direction. The external end has a first section located inside the protective part and a second section extending outside the protective part. Between the first and second sections of one row of external ends, there is also an inclined section arranged at an angle to increase the interval between the two rows of second sections.

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