A connector for printed circuits and a connector assembly, printed board assembly

Abstract

The utility model relates to a kind of connectors, specifically to a kind of connector for printed circuit and connector assembly, printed board assembly, connector includes shell I, several contact pieces I are arranged on the shell I, the tail of contact piece I is out of shell I, the tail of shell I is equipped with the baffle for separating adjacent contact piece I, when shell I is installed on printed board I, the tail of contact piece I, baffle is used for inserting in printed board I. The tail of socket is improved its voltage resistance value by the way of increasing baffle, increase the electrical clearance and creepage distance between contact piece, realize the electrical clearance increase between socket and printed board bonding surface pad, in the range that product size is not excessively increased, the working voltage of connector is greatly increased.

Description

Technical Field

[0001] This utility model relates to a connector, specifically to a connector for printed circuit boards and connector assemblies, and printed circuit board assemblies. Background Technology

[0002] Existing printed circuit board (PCB) connectors cannot meet high-voltage requirements in terms of electrical clearance. PCB connectors include plugs and sockets, with multiple contacts inserted into the housings of both. The mating ends of the plug's contacts are located within the plug's mating cavity, while the socket's contacts are positioned within the socket's socket structure. The plug and socket are interlocked, with the mating ends of the socket inserted into the plug's mating cavity, enabling the plug and socket contacts to mate. There are no protrusions or recesses between the contacts on the connector's mating surfaces, resulting in a small creepage distance. The socket's tail is mounted on the printed circuit board, and there are no spacers between the contacts at the tail, leading to small electrical clearances and creepage distances. Therefore, the small electrical clearances and creepage distances between the connector's mating surfaces and the holes at the socket's tail cannot meet the requirements for high-voltage operation.

[0003] Some high-voltage connectors increase electrical clearance and creepage distance by designing a concave-convex double-encased structure on the mating surface, but their voltage withstand value is improved by potting to isolate the air passage at the tail, which cannot be adapted to the installation environment of printed circuit boards. Utility Model Content

[0004] To address the technical problem that the electrical clearance and creepage distance of the connectors used in printed circuit boards are too small to meet the requirements of high-voltage operation, this utility model provides a connector for printed circuit boards, a connector assembly, and a printed circuit board assembly.

[0005] The purpose of this utility model is achieved by the following technical solution. A connector for printed circuit boards according to this utility model includes a housing I, on which a plurality of contacts I are arranged. The tail of each contact I extends out of the housing I. A partition is provided at the tail of the housing I to separate adjacent contacts I. After the housing I is mounted on a printed circuit board I, the tail of each contact I is used to connect with a pad on the printed circuit board I. The partition cooperates with the printed circuit board I to separate adjacent pads on the printed circuit board I.

[0006] Compared with the prior art, the advantages of this utility model are:

[0007] The socket's voltage withstand value is increased by adding a partition at the end, which increases the electrical clearance and creepage distance between the contacts. This increases the electrical clearance between the pads on the mating surface of the printed circuit board and the socket, greatly increasing the connector's operating voltage without excessively increasing the product size.

[0008] Furthermore, the tail of the housing I is provided with a partition groove, which is located between each adjacent contact member I. The partition includes a partition body, the insertion part of the partition body is movably inserted into the partition groove, the separating part of the partition body is located between the tails of adjacent contact members I, and the partition body is provided with reinforcing ribs to increase the strength of the partition. When the insertion part of the partition body is inserted into the partition groove, the reinforcing ribs abut against the tail of the housing I to limit the position of the partition.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] The partitions are detachably mounted on the housing, and different partitions can be selected and installed as needed. The strength of the partitions is increased by reinforcing ribs, and the partitions are also limited in position.

[0011] Furthermore, the tail of the housing I is provided with a partition groove I extending along the length direction of the connector and located between two rows of contact members I, and a partition groove II extending along the width direction of the connector and located between two columns of contact members I. The partition groove I and the partition groove II are perpendicular to each other and are connected.

[0012] Furthermore, the partition includes a partition I for separating adjacent rows of contact members I. The partition I includes a partition body I. A limiting rib protrudes from the side of the insertion part I of the partition body I. The insertion part I of the partition body I is inserted into the partition groove II, and the limiting rib is inserted into the partition groove.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] The partitions separate the contacts in adjacent columns, increasing the electrical clearance and creepage distance between them, thus improving the operating voltage. The partitions are also inserted into the correct positions using limiting ribs.

[0015] Furthermore, the partition includes a partition 2 for separating adjacent row and adjacent column contact members I. The partition 2 includes a partition body 2, which includes mutually perpendicular row partition bodies and column partition bodies. The insertion part 2 of the row partition body is inserted into the partition groove I, and the insertion part 2 of the column partition body is inserted into the partition groove 2.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] By separating the contacts of adjacent columns and rows with partitions, the electrical clearance and creepage distance of the contacts in adjacent columns are further increased, thereby increasing the operating voltage.

[0018] Furthermore, the mating surface of the housing I is provided with a convex or concave structure, and the mating end of the contact I is nested in the convex structure, with the outer wall of the mating end of the contact I fitting against the inner wall of the insertion hole in the convex structure; or, the mating end of the contact I is located in the small mating cavity of the concave structure.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] The connector's mating surface features a double-sided, concave-convex structure, increasing electrical clearance and creepage distance.

[0021] A connector assembly for printed circuit boards includes a connector and an adapter connector. The connector is the printed circuit board connector described above. The adapter connector includes a housing II, a plurality of contacts II arranged in the housing II, the housing II being disposed on a printed circuit board II, the tail of the contacts II being inserted into the printed circuit board II, and the mating ends of the contacts II being located in the mating cavity of the housing II.

[0022] Furthermore, the connector mating surface is provided with a raised bulge structure, the mating end of contact I is nested in the insertion hole of the corresponding raised bulge structure, the adapter connector is provided with a raised concave structure, the concave structure is located in the mating cavity, the mating end of contact II is located in the small mating cavity of the corresponding concave structure, after the connector and the adapter connector are mated, contact I and contact II are mated, and the raised bulge structure is mated in the concave structure.

[0023] Compared with the prior art, the advantages of this utility model are:

[0024] The connector's mating surface features a double-sided, concave-convex structure, increasing electrical clearance and creepage distance.

[0025] Furthermore, the tail of the contact member II is bent and inserted into the printed circuit board II.

[0026] Compared with the prior art, the advantages of this utility model are:

[0027] When a certain angle is required between printed circuit board I and printed circuit board II, the electrical connection between printed circuit board I and printed circuit board II is achieved by bending the tail of contact part II.

[0028] A printed circuit board assembly includes a printed circuit board I, on which a connector for printed circuits as described above is disposed, and on which slots for inserting partitions are disposed to separate adjacent pads on the printed circuit board I.

[0029] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the purpose, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0030] Figure 1 This is a perspective view of a socket in an embodiment of a connector assembly for printed circuits according to the present invention;

[0031] Figure 2 for Figure 1 A diagram showing the removal of the partition;

[0032] Figure 3 for Figure 1 Schematic diagram of partition I;

[0033] Figure 4 for Figure 1 Schematic diagram of diaphragm II;

[0034] Figure 5 This is a three-dimensional schematic diagram of the plug in an embodiment of a connector assembly for printed circuits according to the present invention;

[0035] Figure 6 This is a front view of the socket and plug after they are inserted in an embodiment of a connector assembly for printed circuits according to this utility model;

[0036] Figure 7 for Figure 6 Side view;

[0037] Figure 8 This is a front cross-sectional view of a connector assembly for printed circuit boards according to the present invention, showing that the socket and plug are disposed on corresponding printed circuit boards and interlocked.

[0038] Figure 9 This is a side cross-sectional view of a connector assembly for printed circuit boards according to the present invention, showing that the socket and plug are disposed on corresponding printed circuit boards and interlocked.

[0039] Reference numerals: 1-Socket, 11-Housing I, 12-Contact I, 13-Protrusion structure, 14-Partition I, 141-Partition body I, 1411-Insertion part I, 1415-Separation part I, 142-Reinforcing rib I, 143-Limiting rib, 15-Partition II, 151-Partition body II, 1511-Insertion part II, 1512-Separation part II, 1513-Row partition body, 1514-Column partition body, 152-Reinforcing rib II, 16-Partition groove, 161-Partition groove I, 162-Partition groove II, 17-Insertion hole, 2-Plug, 21-Housing II, 22-Contact II, 23-Concave structure, 24-Merging cavity, 3-Printed circuit board I, 4-Printed circuit board II. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] The following describes in further detail the features and performance of the present invention, which is suitable for a connector and connector assembly for printed circuit boards, and a printed circuit board assembly, with reference to embodiments.

[0048] An embodiment of the connector assembly for printed circuit boards according to this utility model is as follows: Figures 1 to 9 As shown, the connector assembly includes a socket 1 and a plug 2. Both the socket 1 and plug 2 are rectangular connectors, with their length direction as the first direction and their width direction as the second direction. The socket 1 is mounted on printed circuit board I3, and the plug 2 is mounted on printed circuit board II4. In this embodiment, printed circuit board I3 and printed circuit board II4 are perpendicular to each other. Electrical connection between printed circuit board I3 and printed circuit board II4 is achieved by inserting the socket 1 and plug 2 together.

[0049] The socket 1 includes a housing I11, contacts I12 inserted into the housing I11, and a partition plate disposed at the tail of the housing I11. The housing I11 has multiple rows of contacts I12 arranged in a first direction. Multiple insertion holes 17 for inserting the contacts I12 are distributed on the housing I11. Multiple convex structures 13 corresponding to the insertion holes 17 are distributed on the mating surface of the housing I11. Each convex structure 13 is a columnar body protruding from the mating surface of the housing I11. The insertion holes 17 penetrate the convex structures 13 in the protruding direction. The mating ends of the contacts I12 are nested within the convex structures 13 and are in contact with the inner wall of the insertion holes 17 within the convex structures 13.

[0050] The tail of contact I12 extends out of the insertion hole 17 of housing I11 to facilitate insertion onto printed circuit board I3. The tail of housing I11 is provided with partition grooves 16 for separating adjacent insertion holes 17. The partition grooves 16 are located between adjacent contact I12. In this embodiment, the partition grooves 16 are T-shaped or cross-shaped, and each partition groove 16 is interconnected. The partition grooves 16 include partition groove I161 extending along a first direction and located between two rows of contact I12, and partition groove II162 extending along a second direction and located between two columns of contact I12. The partition grooves I161 and II162 are perpendicular to each other.

[0051] In this embodiment, the housing I11 is distributed with various contact elements I12, some of which transmit low-voltage signals and others transmit high-voltage signals. The contact elements I12 are arranged on the housing I11, with different contact elements I12 distributed in different areas. In this embodiment, one side of the housing I11 is a low-voltage area and the other side is a high-voltage area. The low-voltage area has three rows of multiple contact elements I12 arranged in a second direction, and the high-voltage area has two rows of contact elements I12 arranged in the second direction. The contact elements I12 are arranged on the housing I11.

[0052] A partition is inserted into the partition groove 16. The partition includes partition I 14 and partition II 15. Correspondingly, the partition body on the partition includes partition body I 141 and partition body II 151. The insertion part on the partition body includes insertion part I 1411 and insertion part II 1511. The partition part on the partition body includes partition part I 1412 and partition part II 1512. The reinforcing rib on the partition includes reinforcing rib I 142 and reinforcing rib II 152. Partition I 14 includes partition body I 141, reinforcing rib I 142, and limiting rib 143. Partition body I 141 includes insertion part I 1411 and partition part I 1412. Insertion part I 1411 is inserted into the partition groove 16. Partition part I 1412 is located outside the partition groove 16 and can separate the contact member I 12. The reinforcing rib I142 and the limiting rib 143 are perpendicular to each other and are both located on one side of the partition body I141. One side of the reinforcing rib I142 is the insertion part I1411 and the other side is the partition part I1412. The reinforcing rib I142 is used to increase the overall strength of the partition body I141. In this embodiment, the partition is installed in the partition groove 16 by forced installation. During forced installation, the reinforcing rib I142 can axially stop at the tail end face of the shell I11 to limit the partition I14 and prevent the partition I14 from being inserted too much, which would cause damage to the shell I11 or the partition I14, thereby achieving the limitation of the partition I14 on the shell I11. The limiting rib 143 is located on the side of the insertion part 1411. After the insertion part 1411 is inserted into the partition groove 16, the limiting rib 143 is simultaneously inserted into the partition groove I 161, and the insertion part of the partition body I 141 is inserted into the partition groove II 162. Through the cooperation of the insertion part I 1411, the limiting rib 143, the reinforcing rib I 142 and the partition groove 16, the partition I 14 is limited. After the partition I 14 is inserted into the partition groove 16, the adjacent rows of contact members I 12 in the high-voltage area can be separated. However, the voltage difference between the contact members I 12 in the same row is small, the creepage distance is small, and separation is not required.

[0053] The partition II 15 includes a partition body II 151 and a reinforcing rib II 152. The partition body II 151 is in the shape of the Chinese character "tu" as a whole, including two parallel column partition bodies 1514 and a row partition body 1513 perpendicular to the two column partition bodies 1514. After inserting the partition body II 151 into the partition groove 16, it can separate the contact parts I 12 in adjacent columns and adjacent rows, increasing the creepage distance between adjacent columns and adjacent rows. The part of the partition body II 151 inserted into the partition groove 16 is the insertion part II 1511, and the part of the partition body II 151 exposed outside the partition groove 16 is the separation part II 1512. The insertion part II 1511 of the row partition body 1513 is inserted into the partition groove I 161, and the insertion part II 1511 of the column partition body 1514 is inserted into the partition groove II 162. A reinforcing rib II 152 is provided between the insertion part II 1511 and the separation part II 1512, which is used to enhance the overall strength of the partition II 15. The reinforcing rib II 152 can axially stop at the end face of the housing I 11 to limit the partition II 15, preventing the partition II 15 from being inserted too much and causing damage to the housing I 11 or the partition II 15, so as to realize the limit of the partition II 15 on the housing I 11.

[0054] When the socket 1 is inserted into the printed board I 3, the contact part I 12 and the partition are both inserted into the printed board I 3. The contact part I 12 is connected to the pad, and the partition separates the pads on the fitting surface of the printed board I 3 and the socket 1, increasing the electrical clearance between the pads. In this embodiment, a slot corresponding to the partition groove 16 is provided on the printed board I 3, that is, the projection of the partition groove 16 on the printed board I 3 coincides with the slot. When the socket 1 is inserted into the printed board I 3, the partition can be inserted into the slot of the printed board I 3 to separate adjacent pads; or the shape of the slot can also be the projection of each partition on the printed board I 3, so that each partition can be inserted into the slot. The partition can be inserted into the slot by forced installation to realize fixation with the printed board I 3.

[0055] The plug 2 includes a housing II 21, and a variety of contact parts II 22 are inserted on the housing II 21. The housing II 21 is provided with multiple columns of contact parts II 22 in the first direction, and an insertion cavity 24 is provided at the front end of the housing II 21. The housing II 21 includes a high-voltage area and a low-voltage area. The mating ends of the contact parts II 22 in the low-voltage area are located in the insertion cavity 24, and three rows of contact parts II 22 are provided in the second direction of the low-voltage area.

[0056] The mating cavity 24 in the high-voltage region is divided into multiple small mating cavities by the recessed structure 23, which is a ring-shaped protrusion protruding from the bottom surface of the mating cavity 24. The number of small mating cavities corresponds to the number of contact members II 22 in the high-voltage region. The mating ends of the contact members II 22 in the high-voltage region are located in the corresponding small mating cavities. The gap between the recessed structure 23 and the mating ends of the contact members II 22 allows the protruding structure 13 to be inserted. Two rows of contact members II 22 are arranged in the second direction of the high-voltage region, and the contact members II 22 are arranged on the housing II 21.

[0057] While plug 2 and socket 1 are plugged in and contact I 12 and contact II 22 are plugged in, convex structure 13 is inserted into concave structure 23. The creepage distance between adjacent contacts increases because they need to go through multiple bends of convex structure 13 and concave structure 23.

[0058] The tail of contact member II22 in plug 2 extends out of housing II21, and the tail of contact member II22 is bent vertically so that the tail of contact member II22 is connected to the corresponding printed circuit board II and plug 2 is inserted into socket 1, so that printed circuit board II4 and printed circuit board I3 can be perpendicular.

[0059] In this embodiment, the partition is a movable structure that can be detachably mounted on the housing I11 of the socket 1, and can be reassembled after the connector assembly has been de-goldened.

[0060] In this embodiment, both the plug 2 and the socket 1 are rectangular.

[0061] After inserting socket 1 into printed circuit board I3 and plug 2 into printed circuit board II4, socket 1 is fixed to printed circuit board I3 by bolt and nut structure, that is, housing I11 is fixed to printed circuit board I3, and plug 2 is fixed to printed circuit board II4, that is, housing II21 is fixed to printed circuit board II4.

[0062] After plug 2 and socket 1 are inserted into each other, the connector assembly is fixed by bolt and nut structure, that is, housing I11 and housing II21 are fixed to each other.

[0063] The advantages of this utility model are summarized as follows:

[0064] (1) The mating surface of the connector assembly is designed with a concave-convex double-enclosed structure to increase the electrical clearance and creepage distance. The tail of the socket 1 is equipped with a partition to increase its withstand voltage value, thereby increasing the electrical clearance and creepage distance.

[0065] (2) The present invention adopts a partition structure to increase the electrical clearance between the socket 1 and the solder pads on the bonding surface of the printed circuit board I3, thereby greatly increasing the working voltage of the connector assembly without excessively increasing the product size.

[0066] In other embodiments of the present utility model, based on the above embodiments, the "soil" - shaped structure of the partition II 15 can be replaced with a T - shaped structure. Multiple T - shaped partitions II 15 can separate the contact members I 12 in adjacent columns and adjacent rows.

[0067] In other embodiments of the present utility model, based on the above embodiments, according to the voltage value transmitted by the contact member I 12, only the partition I 14 or the partition II 15 can be provided at the tail of the socket 1.

[0068] In other embodiments of the present utility model, based on the above embodiments, the printed circuit board I 3 and the printed circuit board II 4 can be parallel to each other or at other angles. Correspondingly, the tail of the contact member II 22 does not need to be bent, or is bent at other angles according to requirements.

[0069] In other embodiments of the present utility model, based on the above embodiments, the reinforcing rib I 142 and the limiting rib 143 can also be located on different sides of the partition body 141 respectively.

[0070] In other embodiments of the present utility model, based on the above embodiments, the partition can be integrally provided with the housing I 11.

[0071] In other embodiments of the present utility model, based on the above embodiments, the socket 1 and the plug may not be connected to the printed circuit board. The connector (the plug 2 or the socket 1) of the present utility model can be installed on other equipment components that require a large electrical clearance and creepage distance.

[0072] In other embodiments of the present utility model, based on the above embodiments, the convex - bump structure 13 can be provided on the plug 2, and the concave - bump structure 23 can be provided on the socket 1.

[0073] In other embodiments of the present utility model, based on the above embodiments, a partition can also be provided on the plug 2 to separate the tails of adjacent contact members II 22 and the pads on the printed circuit board II 4. When the tail of the contact member II 22 is not bent, the partition used is the same as the partition structure on the socket 1; if the contact member II 22 is bent, the partition separating adjacent columns of contact members II 22 is a flat plate, and the cross - section of the partition separating adjacent rows and adjacent columns is T - shaped or "soil" - shaped.

[0074] An embodiment of a printed - circuit connector of the present utility model, the connector is a socket 1 or a plug 2 in a printed - circuit connector assembly, and the mating connector of the connector is the corresponding plug 2 or socket 1.

[0075] An embodiment of a printed - circuit board assembly of the present utility model includes a printed circuit board I 3, and a connector is provided on the printed circuit board I 3. The connector is the printed - circuit connector in the above embodiments.

[0076] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connector for printed circuit boards, comprising a housing I (11), characterized in that: A plurality of contact pieces I (12) are arranged on the housing I (11). The tail of the contact piece I (12) extends out of the housing I (11). The tail of the housing I (11) is provided with a partition for separating adjacent contact pieces I (12). After the housing I (11) is installed on the printed circuit board I (3), the tail of the contact piece I (12) is used to connect with the pads on the printed circuit board I (3). The partition is used to cooperate with the printed circuit board I (3) to separate adjacent pads on the printed circuit board I (3).

2. A connector for printed circuit boards according to claim 1, characterized in that: The tail of the housing I (11) is provided with a partition groove (16), which is located between each adjacent contact I (12). The partition includes a partition body, the insertion part of the partition body is movably inserted into the partition groove (16), the separation part of the partition body is located between the tails of adjacent contact I (12), and the partition body is provided with reinforcing ribs to increase the strength of the partition. When the insertion part of the partition body is inserted into the partition groove (16), the reinforcing ribs abut against the tail of the housing I (11) to limit the position of the partition.

3. A connector for printed circuit boards according to claim 2, characterized in that: The tail of the housing I (11) is provided with a partition groove I (161) extending along the length direction of the connector and located between two rows of contact I (12), and a partition groove II (162) extending along the width direction of the connector and located between two rows of contact I (12). The partition groove I (161) and the partition groove II (162) are perpendicular to each other and connected.

4. A connector for printed circuit boards according to claim 3, characterized in that: The partition includes a partition I (14) for separating adjacent column contact members I (12). The partition I (14) includes a partition body I (141). The side of the insertion part I (1411) of the partition body I (141) is provided with a limiting rib (143). The insertion part I (1411) of the partition body I (141) is inserted into the partition groove II (162), and the limiting rib (143) is inserted into the partition groove I (161).

5. A connector for printed circuit boards according to claim 3, characterized in that: The partition includes a partition II (15) for separating adjacent row and adjacent column contact members I (12). The partition II (15) includes a partition body II (151). The partition body II (151) includes mutually perpendicular row partition bodies (1513) and column partition bodies (1514). The insertion part II (1511) of the row partition body (1513) is inserted into the partition groove I (161), and the insertion part II (1511) of the column partition body (1514) is inserted into the partition groove II (162).

6. A connector for printed circuit boards according to claim 1, characterized in that: The mating surface of the housing I (11) is provided with a convex hull structure (13) or a concave hull structure (23). The mating end of the contact I (12) is nested in the convex hull structure (13), and the outer wall of the mating end of the contact I (12) is in contact with the inner wall of the insertion hole (17) in the convex hull structure (13); or, the mating end of the contact I (12) is located in the small mating cavity of the concave hull structure (23).

7. A connector assembly for printed circuit boards, comprising a connector and a mating connector thereof, characterized in that: The connector is a printed circuit connector as described in any one of claims 1-6. The adapter connector includes a housing II (21), a plurality of contacts II (22) are arranged in the housing II (21), the housing II (21) is disposed on the printed circuit board II (4), the tail of the contacts II (22) is inserted into the printed circuit board II (4), and the mating end of the contacts II (22) is located in the mating cavity (24) of the housing II (21).

8. A connector assembly for printed circuit boards according to claim 7, characterized in that: The connector mating surface is provided with a raised bulge structure (13), and the mating end of the contact I (12) is nested in the insertion hole (17) of the corresponding raised bulge structure (13). The adapter connector is provided with a raised recessed bulge structure (23), and the recessed bulge structure (23) is located in the mating cavity (24). The mating end of the contact II (22) is located in the small mating cavity of the corresponding recessed bulge structure (23). After the connector and the adapter connector are mated, the contact I (12) and the contact II (22) are mated, and the raised bulge structure (13) is mated in the recessed bulge structure (23).

9. A connector assembly for printed circuit boards according to claim 7, characterized in that: The tail of the contact member II (22) is bent and inserted into the printed circuit board II (4).

10. A printed circuit board assembly, comprising a printed circuit board I (3), characterized in that: The printed circuit board I (3) is provided with a connector for printed circuits as described in any one of claims 1-6, and the printed circuit board I (3) is provided with a slot for inserting a partition.

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