CN214013206U - Connectors and Connector Kits - Google Patents
Connectors and Connector Kits Download PDFInfo
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- CN214013206U CN214013206U CN202023145669.XU CN202023145669U CN214013206U CN 214013206 U CN214013206 U CN 214013206U CN 202023145669 U CN202023145669 U CN 202023145669U CN 214013206 U CN214013206 U CN 214013206U
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- 239000000758 substrate Substances 0.000 claims description 39
- 238000005192 partition Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 abstract description 12
- 230000037431 insertion Effects 0.000 abstract description 12
- 229910000679 solder Inorganic materials 0.000 description 19
- 239000000463 material Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
本实用新型提供了一种连接器以及连接器套件，其难以引起反插。具备安装于第1基板(51)的多个插座型连接器(1)和安装于第2基板(52)的多个插头型连接器(2)，插座型连接器(1)具备具有插槽(19)的第1壳体(10)和排列于插槽(19)的多个触点(8)，插头型连接器(2)具备具有与插槽(19)嵌合的首部(29)的第2壳体(20)和排列于首部(29)的多个触点(8)。从而，插座型连接器(1)的第1壳体(10)以及插头型连接器(2)的第2壳体(20)从嵌合方向观察具有旋转不对称的形状。
The utility model provides a connector and a connector set, which are difficult to cause reverse insertion. A plurality of socket-type connectors (1) mounted on a first board (51) and a plurality of plug-type connectors (2) mounted on a second board (52) are provided, and the socket-type connector (1) is provided with a slot The first housing (10) of (19) and a plurality of contacts (8) arranged in the socket (19), the plug-type connector (2) is provided with a header (29) that fits into the socket (19) The second shell (20) and a plurality of contacts (8) arranged in the header (29). Therefore, the first housing (10) of the receptacle type connector (1) and the second housing (20) of the plug type connector (2) have rotationally asymmetric shapes when viewed in the mating direction.
Description
Technical Field
The present invention relates to a high-speed transmission connector mounted on a circuit board, and more particularly, to an intermediate layer (mezzanine) connector for electrically connecting different circuit boards to each other.
Background
Some connectors for relaying signals between a circuit board and an extension board at high speed employ a socket type connector as a connector mounted on the circuit board side, and employ a plug type connector as a connector mounted on the extension board side, and terminals of both connectors are connected by fitting the plug type connector in a lateral range of the socket type connector. Such a connector is referred to as an "intermediate layer connector", for example.
As an example of a document disclosing a technique related to such a connector, there is patent document 1. The connector described in this document includes a box-shaped housing and contacts arranged in parallel on the wall surface. The bottom surface of the housing of the connector is provided with a protrusion inserted into a positioning hole in the circuit board, and the housing is provided with a contact in a lateral range opposite to the side where the protrusion is present. When the connector is mounted on a circuit board by reflow, the contact of the connector and the pad of the circuit board are electrically connected via solder.
[ patent document 1 ] Japanese patent laid-open publication No. 2018-113146
The housing of such a connector then has a rotationally symmetrical shape. Therefore, the socket type connector has a problem that so-called reverse insertion, that is, insertion of the plug type connector in a direction opposite to the original direction, is liable to occur.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above problems, and an object of the present invention is to provide a connector in which reverse insertion is difficult to occur.
In order to solve the above problem, according to a preferred embodiment of the present invention, there is provided a connector including a plurality of socket connectors mounted on a 1 st board and a plurality of plug connectors mounted on a 2 nd board, the 1 st board and the 2 nd board being electrically connected to each other, the socket connector including: a housing having a slot; and a plurality of contacts arranged in the socket, the plug connector including: a housing having a header fitted into the slot; and a plurality of contacts arranged in the header, the housing of the socket connector and the housing of the plug connector having rotationally asymmetrical shapes when viewed from a fitting direction.
In this aspect, the housing of the receptacle connector may include: a bottom; two 1 st wall portions facing in a 1 st direction orthogonal to the fitting direction so as to surround the insertion groove; and two 2 nd wall portions facing in a 2 nd direction orthogonal to the fitting direction and the 1 st direction, the insertion groove being partitioned into a plurality of insertion grooves by a partition wall extending along the 1 st direction, one end portion of the partition wall being continuous with one 1 st wall portion of the two 1 st wall portions on both sides in the 1 st direction, the other end portion of the partition wall not being continuous with the other 1 st wall portion, a gap being formed between the other end portion of the partition wall and the other 1 st wall portion.
The housing of the plug connector may have a plurality of the header portions extending in the 1 st direction, and a fitting plate portion to be fitted into the gap may be provided between the 1 st direction end portions of the adjacent header portions.
Further, a part of the plurality of receptacle connectors and the other receptacle connectors may be mounted on the 1 st board such that the direction of the gap is opposite to each other, and a part of the plurality of plug connectors and the other plug connectors may be mounted on the 2 nd board such that the direction of the fitting plate portion is opposite to each other.
In the above-described socket connector, the number of the slots may be two, and in the above-described plug connector, the number of the headers may be two.
Further, 1/2 contacts may be arranged so that the positions of one contact and the other contact are shifted from each other among the contacts arranged on both sides of the slot and the header.
As another preferred aspect of the present invention, there is provided a connector kit comprising the receptacle connector and a 1 st cover attached to the receptacle connectors when the receptacle connectors are mounted on a substrate, wherein a round hole is provided at one end of the receptacle connector, a positioning pin fitted into the round hole is provided at one end of the 1 st cover, a long hole is provided at the other end of the receptacle connector, and a positioning pin fitted into the long hole is provided at the other end of the 1 st cover.
In this aspect, the 1 st cover may be provided with a hook-and-loop spring, and when the 1 st cover is attached to the receptacle connector by inserting the positioning pin into the circular hole, inserting the positioning long pin into the long hole, and fitting the hook-and-loop spring into the inside of the wall portion of the receptacle connector, the receptacle connector may be supported from the inside by the hook-and-loop spring of the 1 st cover.
In the receptacle connector, an engaging piece protruding to one side of the insertion groove may be provided on an inner surface of one side of the insertion groove in a wall portion of the receptacle connector, a lower end portion of the hook-and-loop spring may protrude outward, and the lower end portion of the hook-and-loop spring may be configured to engage with the engaging piece.
The utility model discloses a possess a plurality of socket type connectors of installation on the 1 st base plate and a plurality of plug type connectors of installation on the 2 nd base plate, will the 1 st base plate with the 2 nd base plate electricity is connected, socket type connector possess have the slot the casing with arrange in a plurality of contacts of slot, plug type connector possess have with the casing of the prelude of slot gomphosis with arrange in a plurality of contacts of prelude, socket type connector's casing and plug type connector's casing has the shape of rotational asymmetry from the gomphosis direction observation. Therefore, a connector that is less likely to cause reverse insertion can be provided.
Drawings
Fig. 1 is a perspective view of a socket connector 1 and a plug connector 2 according to an embodiment of the present invention.
Fig. 2 is a perspective view of the socket connector 1 of fig. 1 and the 1 st cover 100 fitted to the socket connector 1.
Fig. 3 is a perspective view of the plug connector 2 of fig. 1 and the 2 nd cover 200 fitted to the plug connector 2.
Fig. 4 is an exploded view of the socket type connector 1 of fig. 2.
Fig. 5 is an exploded view of the plug type connector 2 of fig. 3.
Fig. 6 is a perspective view of the 1 st housing 10 of the socket type connector 1 of fig. 4.
Fig. 7 is a perspective view of the 2 nd housing 20 of the plug type connector 2 of fig. 5.
Fig. 8 is a perspective view of the solder terminals 7 of the receptacle connector 1 of fig. 4 and the plug connector 2 of fig. 5.
Fig. 9 is a perspective view of the contacts 8 of the socket type connector 1 of fig. 4 and the plug type connector 2 of fig. 5.
Fig. 10 is a perspective view of the 1 st closure 100 of fig. 2 viewed from the opposite side.
Fig. 11 is a perspective view of the 2 nd cap 200 of fig. 3 viewed from the opposite side.
In fig. 12, (a) is a line sectional view of a cross section parallel to the XZ plane of fig. 1, and (B) is an enlarged view within the F frame of (a).
In FIG. 13, (A) is a view of FIG. 1 as viewed from the-Z side, (B) is a cross-sectional view taken along line D-D of (A), and (C) is an enlarged view taken within frame E of (B).
Fig. 14 is a cross-sectional view of a cross-section parallel to the XZ plane of the component after the socket connector 1 is fitted to the 1 st cover 100.
In fig. 15, (a) is a diagram showing how the receptacle connector 1 expands when reflowing, (B-1) is a diagram showing how the plug connector 2 expands when reflowing when the thermal expansion coefficient of the receptacle connector 1 and the thermal expansion coefficient of the material of the plug connector 2 are almost the same, and (B-2) is a diagram showing how the plug connector 2 expands when reflowing when the thermal expansion coefficient of the material of the plug connector 2 is smaller than the thermal expansion coefficient of the receptacle connector 1.
Description of the reference numerals
1 a receptacle type connector; 2 a plug-type connector; 7 soldering the solder joint terminal; 8, contact points; 10, 1 st shell; 11 a wall portion; 12 wall portions; 13 bottom part; 17 a partition wall; 18 gaps; 19 slot(s); 20, a 2 nd shell; 23, a bottom part; a 29 header; 31 a circular hole; 33 long holes; 34 a bonding tab; 35 corner grooves; 36 grooves; 41 a circular hole; 45-degree holes; 46 grooves; 48 a fitting plate portion; 51 a 1 st substrate; 52 a 2 nd substrate; 71 a substrate portion; 72 a tab portion; a 81 straight line portion; 82 terminal portions; 83 a fork part; 100, 1 st closure; 111 a wall portion; 112 wall portions; 113 a ceiling portion; 130, 1 st opening; 134 lower end portion; 135 springs; 136 spring receiving portions; 200, 2 nd sealing cover; 211 wall portion; 212 wall portion; 213 a top cover portion; 227 holding a sheet portion; 229 a holding sheet portion; 230, 2 nd opening.
Detailed Description
Hereinafter, the receptacle connector 1, the plug connector 2, the 1 st cover 100, and the 2 nd cover 200, which are connector sets according to one embodiment of the present invention, will be described with reference to the drawings. The socket connector 1 and the plug connector 2 are arranged in plural (4 in the example of fig. 1) and are mounted on the 1 st substrate 51 and the 2 nd substrate 52 made of a material having a smaller thermal expansion coefficient than the 1 st substrate 51, respectively. For example, the material of the 1 st substrate 51 is FR4(Flame Retardant Type4), and the material of the 2 nd substrate 52 is ceramic.
When the header 29 of the plug connector 2 on the 2 nd substrate 52 is fitted into the slot 19 of the receptacle connector 1 on the 1 st substrate 51, the contacts 8 of the receptacle connector 1 and the contacts 8 of the plug connector 2 are electrically connected, and high-speed differential transmission by pam (pulse Amplitude modulation) is possible.
When the receptacle connector 1 is reflow-mounted on the 1 st substrate 51, the 1 st cover 100 is mounted on the receptacle connector 1. When the plug type connector 2 is reflow mounted on the 2 nd substrate 52, the 2 nd cover 200 is fitted to the plug type connector 2.
In the following description, the fitting direction of the receptacle connector 1 to the plug connector 2 is appropriately referred to as a Z direction, one direction orthogonal to the Z direction is appropriately referred to as an X direction, and a direction orthogonal to both the Z direction and the X direction is appropriately referred to as a Y direction. In addition, the + Z side is sometimes referred to as the upper side, the-Z side as the lower side, the + X side as the front side, the-X side as the rear side, the + Y side as the left side, and the-Y side as the right side.
As shown in fig. 4, the receptacle connector 1 includes a 1 st housing 10, solder terminals 7, and contacts 8. As shown in fig. 5, the plug connector 2 includes a 2 nd housing 20, solder terminals 7, and contacts 8. The 1 st housing 10 of the socket connector 1 and the 2 nd housing 20 of the plug connector 2 are formed by injecting resin in the X direction which is the longitudinal direction. The 1 st housing 10 of the socket connector 1 and the 2 nd housing 20 of the plug connector 2 have rotationally asymmetrical shapes.
In the 1 st housing 10 of the socket type connector 1, two slots 19 are provided, if explained in more detail. The two slots 19 extend in the X direction. The 1 st housing 10 has: a bottom 13 which becomes the bottom of the housing 10; a wall portion 11 and a wall portion 12 which face each other in the X direction and the Y direction so as to surround the slot 19; and a partition wall 17 that separates two slots 19 in a lateral range surrounded by wall portions 11 and 12. Wall 11 extends in the-Y direction and wall 12 extends in the X direction.
the-X-side end of the partition wall 17 is connected to the-X-side wall 11. The end of the partition wall 17 on the + X side is not continuous with the wall 11 on the + X side, and a gap 18 is formed between the end of the partition wall 17 on the + X side and the wall 11 on the + X side.
A circular hole 31 is provided in the wall 11 on the-X side at the center in the Y direction. A long hole 33 is provided in the wall 11 on the + X side at the midpoint in the Y direction. The + X side of the long hole 33 is open. On the + Y side and the-Y side of the hole in the-X side wall portion 11 and the + X side wall portion 11, corner grooves 35 are provided. The corner groove 35 is recessed from the upper surface of the wall portion 11 toward the bottom portion 13. A hole is formed in the bottom of the angular groove 35, and the solder joint terminal 7 is fitted and fixed in the hole. As shown in fig. 8, the solder terminal 7 includes an elongated base portion 71 and two projecting portions 72 rising from both ends of one long side of the base portion 71. The two protruding pieces 72 are fitted into the bottom holes of the corner slots 35 of the 1 st housing 10.
As shown in fig. 14, in the wall portion 11 on the + X side and the-X side, there is an engaging piece 34 protruding to one side of the slot 19 on the lower side of the inner surface on one side of the slot 19.
As shown in fig. 2 and 10, the 1 st cover 100 has a box shape having a width slightly larger than that of a member in which 4 receptacle connectors 1 are arranged in parallel in the X direction and the Y direction. On the-Z side of the 1 st closure 100, a 1 st opening 130 is provided. The 1 st cover 100 includes a ceiling portion 113 that becomes a ceiling of the 1 st cover 100, and a wall portion 111 and a wall portion 112 that face each other in the X direction and the Y direction with the 1 st opening 130 therebetween.
Hook ring springs 135 and spring receiving portions 136 are provided inside the-X side wall portion 112 and the + X side wall portion 112 at positions corresponding to the respective slots 19 of the four 1 st cases 10. As shown in fig. 14, the lower end 134 of the hook-and-loop spring 135 protrudes in an outward triangular shape.
Positioning pins are provided between the spring receiving portions 136 adjacent to each other on the inner side of the wall portion 112 on the-X side at positions corresponding to the circular holes 31. The positioning pin has a shape received in the circular hole 31. A positioning long pin is provided at a position corresponding to the long hole 33 between the adjacent spring receiving portions 136 inside the wall portion 112 on the + X side. The positioning long pin has a shape received in the long hole 33.
The fitting of the 1 st cover 100 to the receptacle type connector 1 and the reflow mounting thereof are performed in the following manner. First, the four receptacle connectors 1 are arranged such that the direction of the gap 18 of some of the receptacle connectors 1 is opposite to the direction of the gap 18 of the remaining receptacle connectors 1 (for example, the gaps 18 of two receptacle connectors 1 in the middle are on the-X side, and the gaps 18 of two receptacle connectors 1 at both ends are on the + X side).
Next, the 1 st cover 100 is assembled to the four receptacle type connectors 1 by inserting the positioning pins into the circular holes 31 on the-X side, inserting the positioning long pins into the long holes 33 on the + X side, and fitting the hook ring springs 135 into the wall portions 11 on the-X side and the + X side. As shown in fig. 14 (a) and 14 (B), when the 1 st cover 100 is fitted to the four receptacle connectors 1, the lower end portions 134 of the hook springs 135 of the cover 100 engage with the engagement pieces 34 of the connectors 1, and the receptacle connectors 1 are supported from the inside in the X direction by the hook springs 135 of the 1 st cover 100.
Next, the four receptacle connectors 1 gathered by the 1 st cover 100 are placed at predetermined positions on the 1 st substrate 51, and are stored in the reflow apparatus, and the temperature in the apparatus is changed to 20 ℃→ 260 ℃→ 20 ℃. When the temperature exceeds 217 ℃, the solder 9 located at the tip of the contact 8 melts, and when the temperature returns to normal temperature, the solder 9 solidifies. The solidification of the solder 9 connects the contact 8 of the socket connector 1 and the pad of the 1 st substrate 51. After the receptacle connector 1 is mounted to the 1 st substrate 51, the 1 st cover 100 is detached from the receptacle connector 1.
As shown in fig. 5 and 7, the 2 nd housing 20 of the plug connector 2 is provided with two header portions 29. The two headers 29 extend in the X direction. The end portions of the bottom 23, which is the bottom of the two headers 29 of the 2 nd case 20, on the-X side, the + X side, the-Y side, and the + Y side protrude outward from the portion supporting the headers 29. Between the-X-side ends of the two adjacent header portions 29 in the 2 nd housing 20, a fitting plate portion 48 is provided.
A circular hole 41 is provided in the center of the Y direction at the-X side end of the bottom 23. The bottom 23 has a 2 nd elongated hole in the middle of the end on the + X side in the Y direction. The + X side of the 2 nd long hole is open. On the + Y side and the-Y side of the hole in the end portions on the-X side and the + X side of the bottom portion 23, there are provided corner holes 45. The solder terminals 7 are fitted into and fixed to the corner holes 45.
On the + Y side and the-Y side of the two headers 29, grooves 46 are provided. The groove 46 receives the contact 8. Contact 8 is held in groove 46 of head 29, and prong 83 of contact 8 and solder 9 pass through the hole of bottom 23 and are exposed to the side opposite to the side of groove 46.
As shown in fig. 3 and 11, the 2 nd cover 200 has a box shape having a width slightly larger than that of a portion where the plug connectors 2 are arranged in four 4 rows in the X direction and the Y direction. On the-Z side of the 2 nd cover 200, a 2 nd opening 230 is provided. The 2 nd cap 200 includes a top cover portion 213 that becomes a ceiling of the 2 nd cap 200, and a wall portion 211 and a wall portion 212 that face each other in the X direction and the Y direction across the 2 nd opening 230.
At a position corresponding to a gap between the head 29 of the 2 nd case 20 in the-X side and the inside of the wall portion 211, there is a holding piece portion 227 protruding toward the inside. At a position corresponding to a gap between the inside of the wall portion 211 on the + X side and the head portion 29 of the 2 nd housing 20, there is a holding piece portion 229 protruding inward.
Positioning pins are provided between adjacent holding piece portions 227 of the-X-side wall portion 211 at positions corresponding to the circular hole 41 of the 2 nd housing 20. The positioning pin has a shape received in the circular hole 41. The positioning pin is provided with a positioning long pin at a position corresponding to the 2 nd long hole of the 2 nd housing 20 between the adjacent holding piece portions 229 of the wall portion 211 on the + X side. The positioning long pin has a shape received in the 2 nd long hole.
The fitting of the 2 nd cover 200 to the plug type connector 2 and the reflow mounting thereof are performed in the following manner. First, four plug connectors 2 are arranged in the same manner as the combination of four receptacle connectors 1 in which the connector with the fitting plate portion 48 on one side and the connector on the other side are combined.
Next, the 2 nd cover 200 is fitted over the four plug type connectors 2 by inserting the positioning pins into the circular holes 41 on the + X side and inserting the positioning long pins into the 2 nd long holes on the-X side. When the 2 nd cover 200 is attached to the four plug type connectors 2, the holding piece portions 227 and 229 of the 2 nd cover 200 abut on the header portion 29 of the plug type connector 2, and the four socket type connectors 1 are supported from the outside in the X direction by the holding piece portions 227 and 229 of the 2 nd cover 200.
Next, the four plug connectors 2 gathered by the 2 nd cover 200 are placed at predetermined positions on the 2 nd substrate 52, and are stored in the reflow apparatus, and the temperature in the apparatus is changed so as to be 20 ℃→ 260 ℃→ 20 ℃. When the temperature exceeds 217 ℃, the solder 9 located at the tip of the contact 8 melts, and when the temperature returns to normal temperature, the solder 9 solidifies. The contact 8 of the plug connector 2 and the pad of the 2 nd substrate 52 are connected by solidification of the solder 9. After the plug type connector 2 is mounted on the 2 nd substrate 52, the 2 nd cover 200 is detached from the plug type connector 2.
The fitting plate portion 48 of the plug connector 2 fits into the gap 18 of the receptacle connector 1 when the plug connector 2 and the receptacle connector 1 are connected in the correct orientation, and interferes with the header portion 29 of the receptacle connector 1 when the plug connector 2 and the receptacle connector 1 are connected in the wrong orientation. If the plug type connector 2 and the socket type connector 1 are in opposite directions, the fitting plate portion 48 and the header portion 29 interfere with each other, and therefore, reverse insertion of the plug type connector 2 and the socket type connector 1 is prevented.
As shown in fig. 13 (B) and 13 (C), when the plug connector 2 and the socket connector 1 are connected in the correct orientation, the contacts 8 of the plug connector 2 and the contacts 8 of the socket connector 1 come into contact. As shown in fig. 12 (a) and 12 (B), among the contacts 8 arranged facing each other on both sides of the header 29 and the slot 19, the position of the contact 8 on the-Y side and the position of the contact 8 on the + Y side are shifted by 1/2 contacts in the X direction. The contact 8 on the-Y side and the contact 8 on the + Y side are displaced from each other by 1/2 contacts in the X direction, which is effective for preventing crosstalk.
Here, the 1 st and 2 nd caps 100 and 200 are formed of different kinds of resins, and the thermal expansion coefficient of the material of the 2 nd cap 200 is smaller than that of the material of the 1 st cap 100. More specifically, α 11/α 10 ≈ α 21/α 20 where α 11 is a thermal expansion coefficient of the 2 nd cap 200 in the Y direction which is a parallel direction of the four receptacle connectors 1, α 11 is a thermal expansion coefficient of the 1 st substrate 51 in the Y direction, α 20 is a thermal expansion coefficient of the 2 nd cap 200 in the Y direction, that is, α 20 is a thermal expansion coefficient of the 2 nd substrate 52 in the Y direction. This is to control an error between the mounting position of the contact 8 of the socket connector 1 on the 1 st substrate 51 and the mounting position of the contact 8 of the plug connector 2 on the 2 nd substrate 52 to be less than 0.15 mm.
By making the thermal expansion coefficient of the 2 nd cover 200 smaller than that of the 1 st cover 100, the mounting position error of the receptacle connector 1 and the plug connector 2 can be reduced for the following reason.
As shown in fig. 15 (a) and 15 (B-1), in reflow mounting, when the temperature in the reflow apparatus becomes high, the 1 st lid 100, the 1 st case 10, the 1 st substrate 51, the 2 nd lid 200, the 2 nd case 20, and the 2 nd substrate 52 expand in the Y direction, and when the temperature returns to normal temperature, they contract.
As the 1 st cover 100 expands, the distance between the adjacent contacts 8 in the 1 st housing 10 of the receptacle connector 1 becomes wider, and the positions of the contacts 8 of the receptacle connector 1 at the time when the melting temperature of the solder 9 is exceeded and 260 ℃ is reached are the mounting positions of the contacts 8 on the 1 st substrate 51. Similarly, the position of the contact 8 of the plug type connector 2 at the time when 260 ℃ is reached is the mounting position of the contact 8 on the 2 nd substrate 52.
As described above, the thermal expansion coefficient of the ceramic as the material of the 2 nd substrate 52 is smaller than that of FR4 as the material of the 1 st substrate 51. Therefore, if the 1 st cover 100 and the 2 nd cover 200 are made of materials having almost the same thermal expansion coefficient as the 1 st substrate 51, the 1 st substrate 51 contracts and the interval of the contacts 8 of the receptacle connector 1 returns to the original state while returning from 260 ℃ to 20 ℃, whereas the 2 nd substrate 52 hardly contracts and the interval of the contacts 8 of the receptacle connector 1 is kept in a state of being increased by the expansion. As a result, the error in the mounting positions of the receptacle connector 1 and the plug connector 2 becomes large.
On the other hand, as shown in fig. 15 (B-2), if the thermal expansion coefficient of the 2 nd cover 200 is smaller than that of the 1 st cover 100, the interval between the contacts 8 of the plug connector 2 at the time when the temperature reaches 260 ℃ is smaller than that in the case where the thermal expansion coefficient is the same. Therefore, the error of the mounting positions of the socket type connector 1 and the plug type connector 2 becomes small when returning from 260 ℃ to 20 ℃.
The above is the details of the present embodiment. The connector kit according to the present embodiment includes: a socket type connector 1 as a 1 st connector; a 1 st cover 100 attached to the receptacle connector 1 when the receptacle connector 1 is reflow-mounted on the 1 st substrate 51; a plug type connector 2 as a 2 nd connector; and a 2 nd cover 200 mounted on the plug connector 2 when the plug connector 2 is mounted on a 2 nd substrate 52 made of a material having a smaller thermal expansion coefficient than the 1 st substrate 51 by reflow, the 2 nd cover 200 being made of a material having a smaller thermal expansion coefficient than the 1 st cover 100. This can absorb the difference between the thermal expansion coefficient of the circuit board to which the receptacle connector 1 is attached and the thermal expansion coefficient of the circuit board to which the plug connector 2 is attached, thereby reducing the error in the attachment position.
The connector of the present embodiment includes a plurality of socket connectors 1 mounted on the 1 st substrate 51 and a plurality of plug connectors 2 mounted on the 2 nd substrate 52, the socket connectors 1 include the 1 st housing 10 having the slot 19 and a plurality of contacts 8 arranged in the slot 19, and the plug connectors 2 include the 2 nd housing 20 having the header 29 fitted to the slot 19 and a plurality of contacts 8 arranged in the header 29. Thus, the 1 st housing 10 of the socket connector 1 and the 2 nd housing 20 of the plug connector 2 have rotationally asymmetrical shapes as viewed from the fitting direction. This makes it possible to provide a connector that is less likely to cause reverse insertion.
In the present embodiment, the slot 19 of the receptacle connector 1 and the header 29 of the plug connector 2 are 2 rows. Therefore, it is possible to make it difficult to apply stress to the solder 9 portion as compared with the 1-row conventional connector.
Although the embodiments of the present invention have been described above, the following modifications may be added to the embodiments.
(1) In the above embodiment, the number of connectors to be mounted on the substrate to be closed and gathered may be 2 to 3, or 4 or more.
(2) In the above embodiment, the row of the slots 19 in one socket connector 1 and the row of the header 29 in one plug connector 2 may be 1 row, or 3 or more rows.
Claims (9)
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| CN202023145669.XU CN214013206U (en) | 2020-12-24 | 2020-12-24 | Connectors and Connector Kits |
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| CN202023145669.XU CN214013206U (en) | 2020-12-24 | 2020-12-24 | Connectors and Connector Kits |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361835A (en) * | 2021-12-15 | 2022-04-15 | 上海航天科工电器研究院有限公司 | High transmission rate connector |
| CN114678709A (en) * | 2020-12-24 | 2022-06-28 | 山一电机株式会社 | Connector and connector kit |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678709A (en) * | 2020-12-24 | 2022-06-28 | 山一电机株式会社 | Connector and connector kit |
| CN114678709B (en) * | 2020-12-24 | 2025-07-25 | 山一电机株式会社 | Connector and connector kit |
| CN114361835A (en) * | 2021-12-15 | 2022-04-15 | 上海航天科工电器研究院有限公司 | High transmission rate connector |
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