connector

Abstract

A connector stably mounts surface mount terminals to a substrate. The connector (100) has a housing (110) and a plurality of terminals, some or all of which are configured as surface mount terminals (120). Each of the plurality of surface mount terminals has a terminal portion (121) disposed inside the housing, a fixing portion (122) fixed to the housing, and a mounting portion (123) soldered to a conductive pad portion (11) formed on a substrate (10) placement surface. The connector is disposed on the substrate placement surface from an X direction, the plurality of surface mount terminals are arranged from one side to the other side in a Y direction, and the surface mount terminal (120) having the smallest length dimension from the mounting portion to the fixing portion among the plurality of surface mount terminals is disposed at the leftmost end in the Y direction. The length dimension from the mounting portion (123) to the fixing portion (122) increases or is the same dimension in the arrangement order from the left side to the right side in the Y direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a connector. BACKGROUND

[0002] Conventionally, a surface-mount type connector having a resin housing and a plurality of metal terminals provided to the housing and used by being placed on a placement surface of a substrate is known. For example, Patent Document 1 discloses a surface-mount type connector in which a plurality of terminals are all configured as surface-mount terminals that are soldered to a conductive pad portion formed on the placement surface of the substrate. Figure 27

[0003] PRIOR ART DOCUMENTS

[0004] PATENT DOCUMENTS

[0005] Patent Document 1: Japanese Patent Application Publication No. 2015-210899 SUMMARY

[0006] (1) Problem to be Solved

[0007] With the existing connector represented by the connector disclosed in Patent Document 1 described above, since the plurality of surface-mount terminals made of metal are arranged in the resin housing, the mounting portions of the surface-mount terminals are lifted from the placement surface of the substrate due to thermal expansion of the housing in a reflow soldering process. This phenomenon is caused by the fact that the thermal expansion rate of the resin housing is larger than that of the surface-mount terminals made of metal.

[0008] In the existing connector, if the shapes of all the surface-mount terminals are the same, specifically, if the length dimension of the surface-mount terminals from the fixed portion to the mounting portion soldered to the substrate is the same, even if the mounting portions of the surface-mount terminals are lifted from the substrate due to thermal expansion of the housing caused by heat during soldering, the terminal flatness (flatness) can be maintained, and thus no problem occurs.

[0009] However, as in the connector disclosed in Patent Document 1 described above, in the case where a plurality of surface-mount terminals having different length dimensions from the fixed portion to the mounting portion soldered to the substrate are mixed, the higher the height of the fixed portion from the substrate surface, the greater the influence of thermal expansion of the housing. That is, in the existing connector shown in FIG. 1, the lifting amount of the mounting portion differs depending on the height of the fixed portion possessed by the surface-mount terminal due to the influence of heat during soldering, so that the terminal flatness deteriorates (a deviation in the height of the mounting portion occurs), and thus there is a technical problem that soldering failure is likely to occur. Figure 27

[0010] ​​Therefore, an object of the present application is to provide a connector which can reduce the lifting amount of the mounting portion from the substrate due to the heat influence at the time of soldering, even in the case where a plurality of surface mounting terminals having different length dimensions from the fixed portion to the mounting portion are mixed, and which can stably mount the surface mounting terminals to the substrate.

[0011] (II) Technical Solution

[0012] The connector of the present application has a resin housing and a plurality of terminals made of metal provided to the housing, the connector being provided on a placement surface of a substrate having a placement surface parallel to a plane formed by mutually orthogonal first and second directions, the connector being characterized in that a part or all of the plurality of terminals are surface mounting terminals each having a terminal portion disposed inside the housing, a fixed portion fixed to the housing, and a mounting portion soldered to a conductive pad portion formed on the placement surface of the substrate, when the connector provided on the placement surface of the substrate is viewed from the first direction, the plurality of surface mounting terminals are arranged from one side to the other side in the second direction, and the surface mounting terminal of the plurality of surface mounting terminals having the smallest length dimension from the mounting portion to the fixed portion is disposed at a position of the most distal end portion on one side in the second direction, and is arranged in order of arrangement from one side to the other side in the second direction in such a manner that the length dimension from the mounting portion to the fixed portion becomes larger or is the same.

[0013] That is, for the mounting portion of the surface mounting terminal in the reflow soldering process, lifting related to the height of the fixed portion occurs, resulting in deterioration of the terminal flatness, and due to the deterioration of the terminal flatness, the posture of the connector is easily tilted due to vibration in the reflow soldering process, the surface tension of the molten solder. Also, when the posture of the connector is tilted, the mounting portion of the surface mounting terminal whose fixed portion is located at the lowest position becomes the fulcrum (the center of rotation at the time of tilting). In the connector of the present application, the surface mounting terminal which becomes the fulcrum is disposed at a position of the most distal end portion on one side in the arrangement direction (the outer side), and therefore by the tilting of the posture of the connector, the positions of the mounting portions of all the surface mounting terminals move in the direction of lowering (the direction of approaching the molten solder), and thus the occurrence of soldering defects is suppressed. Further, in the case where the surface mounting terminal which becomes the fulcrum is not disposed at a position of the most distal end portion on one side in the arrangement direction (the outer side), the position of the mounting portion of the surface mounting terminal on one side across the fulcrum lowers, but the position of the mounting portion of the surface mounting terminal on the other side rises (moves away from the molten solder), and therefore soldering defects are easily generated in the surface mounting terminal on the other side.

[0014] Further, in the connector of the present application, when the surface mount terminals are arranged in two or more columns from one side to the other side of the second direction when the mounting surface of the substrate is viewed from the third direction orthogonal to the first direction and the second direction, the surface mount terminal having the smallest length dimension from the mounting portion to the fixing portion is arranged at the most distal position on the one side of the second direction in all the columns of the surface mount terminals, and the surface mount terminals arranged at the most distal position on the one side of the second direction in all the columns are arranged at positions overlapping when the connector is viewed from the first direction.

[0015] That is, in the connector of the present application, even in the case where the surface mount terminals are arranged in two or more columns when the mounting surface of the substrate is viewed from the third direction, the surface mount terminal serving as the fulcrum is arranged at a position overlapping when the housing is viewed from the first direction, so that the center of rotation when the posture of the connector is tilted is uniform, and the mounting portions of all the arranged surface mount terminals move in a downward direction (a direction close to the molten solder).

[0016] Further, in the connector of the present application, the plurality of terminals include a plurality of through-hole terminals each having a terminal portion arranged inside the housing, a fixing portion fixed to the housing, and a mounting portion to be soldered in a state where a through hole formed on the mounting surface of the substrate is conducted, and the terminal having the largest length dimension from the mounting portion to the fixing portion among the plurality of terminals is a through-hole terminal.

[0017] That is, in the connector of the present application, although the surface mount terminals and the through-hole terminals are mixed, by making all the terminals having the fixing portion arranged at the highest position be through-hole terminals, the height of the fixing portion of the surface mount terminals can be relatively lowered, and the influence of thermal expansion of the housing can be reduced.

[0018] Further, in the connector of the present application, for the surface mount terminal having the fixing portion directly below the fixing portion of the through-hole terminal, by providing a crank portion bent in a crank shape between the fixing portion and the mounting portion of the surface mount terminal, the mounting portion of the surface mount terminal can be soldered to the pad portion of the substrate at a position farther from the housing than the mounting portion of the through-hole terminal.

[0019] That is, in the connector of the present application, although the fixing portion of the surface mount terminal directly below the through-hole terminal arranged at the highest position is on the inner side (the housing side) of the through-hole terminal, by providing a crank portion bent in a crank shape between the fixing portion and the mounting portion of the surface mount terminal, the mounting portion of the surface mount terminal can be directed to the outer side, and the appearance inspection can be easily performed.

[0020] (III) Beneficial Effects

[0021] According to the present application, a connector can be provided, which can reduce the lifting amount of the mounting portion from the substrate due to the heat influence at the time of soldering even in the case where a plurality of surface mounting terminals having different length dimensions from the fixed portion to the mounting portion soldered to the substrate are mixed, and thus can suppress the occurrence of soldering failure, and can stably mount the surface mounting terminals to the substrate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the connector of the first embodiment when viewed from the upper left of the back surface.

[0023] Figure 2 is a front view of the connector of the first embodiment.

[0024] Figure 3 is a rear view of the connector of the first embodiment.

[0025] Figure 4 is a left side view of the connector of the first embodiment.

[0026] Figure 5 is a sectional view showing a longitudinal section of the portion indicated by the symbol A-A line in Figure 2

[0027] Figure 6 is a perspective view showing a plurality of terminals possessed by the connector of the first embodiment.

[0028] Figure 7 is a perspective view of the connector of the second embodiment when viewed from the upper left of the back surface.

[0029] Figure 8 is a plan view of the connector of the second embodiment.

[0030] Figure 9 is a perspective view of the connector of the third embodiment when viewed from the upper left of the back surface.

[0031] Figure 10 is a plan view of the connector of the third embodiment.

[0032] Figure 11 is a perspective view of the connector of the fourth embodiment when viewed from the upper left of the back surface.

[0033] Figure 12 is a plan view of the connector of the fourth embodiment.

[0034] Figure 13 is a perspective view of the connector of the fifth embodiment when viewed from the upper left of the back surface. ​

[0035] Figure 14 is a plan view of the connector of the fifth embodiment.

[0036] Figure 15 is a perspective view when the connector of the sixth embodiment is viewed from the back left upper side.

[0037] Figure 16 is a front view of the connector of the sixth embodiment.

[0038] Figure 17 is a plan view of the connector of the sixth embodiment.

[0039] Figure 18 is a perspective view showing a plurality of terminals possessed by the connector of the sixth embodiment.

[0040] Figure 19 is a perspective view when the connector of the present embodiment is viewed from the front right upper side.

[0041] Figure 20 is a perspective view when the connector of the present embodiment is viewed from the back left upper side.

[0042] Figure 21 is a front view of the connector of the present embodiment.

[0043] Figure 22 is an exploded perspective view when the connector of the present embodiment is viewed from the back left upper side.

[0044] Figure 23 is a perspective view when a part of the connector of the present embodiment (a housing) is removed and viewed from the back left upper side.

[0045] Figure 24 is a rear view when a part of the connector of the present embodiment (a housing) is removed and viewed from the back side.

[0046] Figure 25 is a perspective view when a plurality of terminals possessed by the connector of the present embodiment are viewed from the front left upper side.

[0047] Figure 26 is a perspective view when a plurality of terminals possessed by the connector of the present embodiment are viewed from the back right upper side.

[0048] Figure 27 is a rear view of the surface mount type connector of the invention of Patent Document 1.

[0049] Explanation of Reference Numerals

[0050] 10 - substrate; 11 - land portion; 12 - through-hole; 13 - mounting hole; 100 - connector (of the first embodiment); 110 - housing; 112 - cover; 112a - side surface; 112b - top surface; 112c - rear surface; 113 - leg portion; 120 - surface mounting terminal (terminal); 121 - terminal portion; 122 - fixing portion; 122a - concave-convex shaped portion; 122b - flange shaped portion; 123 - mounting portion; 130 - through-hole terminal (terminal); 131 - terminal portion; 132 - fixing portion; 132a - concave-convex shaped portion; 132b - flange shaped portion; 133 - mounting portion; 140 - surface mounting terminal (terminal); 141 - terminal portion; 142 - fixing portion; 142a - concave-convex shaped portion; 142b - flange shaped portion; 143 - mounting portion; 144 - crank portion; 200 - connector (of the second embodiment); 300 - connector (of the third embodiment); 400 - connector (of the fourth embodiment); 500 - connector (of the fifth embodiment); 600 - connector (of the sixth embodiment); 700 - connector (of the present embodiment). DETAILED DESCRIPTION

[0051] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. In addition, the following embodiments do not limit the application of each claim, and furthermore, the combination of features described in the embodiments is not all necessary to achieve the application.

[0052] [First Embodiment]

[0053] Reference Figures 1-6 The connector 100 of the first embodiment will be described. In addition, in the first embodiment, a first direction, a second direction, and a third direction are defined for ease of explanation. In the first embodiment, the first direction is a front-rear direction. In the drawings, the front-rear direction is indicated as an X direction. In particular, the front is set as a +X direction, and the rear is set as a -X direction. In addition, in the first embodiment, the second direction is a right-left direction. In the drawings, the right-left direction is indicated as a Y direction. In particular, the right is set as a +Y direction, and the left is set as a -Y direction. Furthermore, in the first embodiment, the third direction is an up-down direction. In the drawings, the up-down direction is indicated as a Z direction. In particular, the up is set as a +Z direction, and the down is set as a -Z direction.

[0054] As Figures 1-5 shown, the connector 100 of the first embodiment has a housing 110 made of resin, and a plurality of terminals made of metal, i.e., a plurality of surface mounting terminals 120, provided to the housing 110. In the connector 100 of the first embodiment, the plurality of terminals of the present application are all configured as the surface mounting terminals 120. In the first embodiment, the surface mounting terminals 120 are provided with seven.

[0055] In addition, as shown in Figure 1 The connector 100 of the first embodiment is used by being disposed on a placement surface of a substrate 10 having a placement surface parallel to an XY plane formed by a first direction, i.e., an X direction, and a second direction, i.e., a Y direction. The substrate 10 of the first embodiment is, for example, referred to as a printed wiring board, and a pad portion 11 of electrical conductivity is formed on the placement surface of the substrate 10 to be soldered to seven surface mount terminals 120.

[0056] Referring to Figures 1-5 With the connector 100 of the first embodiment, electrical connection of the connector 100 and an opposite-side connector is performed by inserting the opposite-side connector, not shown, into an opening portion that is open on the front surface side. In addition, with the connector 100 of the first embodiment, connection of the connector 100 and a circuit wiring of the substrate 10 can be performed via the pad portion 11 of electrical conductivity formed on the placement surface of the substrate 10.

[0057] As shown in Figure 5 The housing 110 of the first embodiment is a member made of resin, and has an opening that penetrates in a direction parallel to the first direction, i.e., the X direction. By inserting the surface mount terminal 120 from the rear of the housing 110 toward the front, the terminal portion 121 can be disposed inside the opening of the housing 110. In addition, by providing a foot portion, not shown, or the like on the bottom surface of the housing 110 and using the foot portion, not shown, to perform connection to the substrate 10, stable disposition of the housing 110 with respect to the substrate 10 can be achieved.

[0058] As shown in Figure 6 The surface mount terminal 120 of the first embodiment is a member in which a rod-shaped member made of metal is bent 90 degrees at two portions in mutually opposite directions (longitudinal and horizontal directions) to have a substantially crank shape. A portion extending toward the front functions as the terminal portion 121 to perform electrical connection to the opposite-side connector, not shown. The terminal portion 121 is a portion disposed inside the opening of the housing 110 when the surface mount terminal 120 is inserted from the rear of the housing 110 toward the front.

[0059] In addition, the surface mount terminal 120 of the first embodiment has a fixing portion 122 that functions as a portion to be fixedly connected to the housing 110 when the surface mount terminal 120 is inserted from the rear of the housing 110 toward the front. The fixing portion 122 of the first embodiment is configured as a rod-shaped member extending toward the first direction, i.e., the X direction, but, for example, to achieve reliable fixed connection to the housing 110, a concave-convex shape can be formed in the surface shape of the fixing portion 122 to increase friction for fixing to the housing 110, or a flange-like portion can be added to reinforce and position the fixing to the housing 110.

[0060] In addition, the surface mounting terminal 120 of the first embodiment has a mounting portion 123 at the rear, which extends in a direction parallel to the placement surface of the substrate 10 having a placement surface parallel to the XY plane. The mounting portion 123 is a portion to be soldered to the conductive pad portion 11 formed on the placement surface of the substrate 10. As a method of soldering the mounting portion 123 to the pad portion 11, for example, a paste-like solder can be printed in advance on the pad portion 11, the connector 100 can be disposed on the substrate 10 with the mounting portion 123 in contact with the pad portion 11, and then the thus-configured substrate 10 can be put into a reflow furnace, and the paste-like solder can be melted by heating in the reflow furnace, thereby completing the soldering of the mounting portion 123 to the pad portion 11.

[0061] As shown in FIG. 1, Figure 3 When the connector 100 provided on the placement surface of the substrate 10 is viewed from the rear side along the first direction, the seven surface mounting terminals 120 of the connector 100 of the first embodiment are arranged from the left side surface side to the right side surface side in the second direction. In addition, in the first embodiment, the surface mounting terminal 120 having the smallest length dimension from the mounting portion 123 to the fixed portion 122 among the seven surface mounting terminals 120 is arranged at the position of the most distal end on the left side surface side in the second direction (i.e., the left end in the paper right end in FIG. 1), and the surface mounting terminals 120 are arranged in order of arrangement from the left side surface side to the right side surface side in the second direction in such a manner that the length dimension from the mounting portion 123 to the fixed portion 122 becomes larger or the same. Figure 3

[0062] In this case, with respect to the mounting portion 123 of the surface mounting terminal 120 in the reflow soldering process, lifting related to the height of the fixed portion 122 occurs, which causes deterioration of the terminal flatness, and due to the deterioration of the terminal flatness, the posture of the connector 100 is easily tilted due to vibration in the reflow soldering process or the surface tension of the molten solder. In addition, according to the research by the inventor, when the posture of the connector 100 is tilted, the mounting portion 123 of the surface mounting terminal 120 having the lowest height of the fixed portion 122 becomes a fulcrum (a center of rotation when tilted).

[0063] Based on this insight, the existing connector structure disclosed in the above-described Patent Document 1 was verified, and in the case where the plurality of surface mounting terminals having different length dimensions from the mounting portion 123 to the fixed portion 122 are arranged differently from each other, due to the heat influence in the reflow soldering process, the larger the length dimension from the mounting portion 123 to the fixed portion 122, the larger the expanded length dimension, and the position of the mounting portion of the plurality of surface mounting terminals varies depending on the length dimension from the mounting portion 123 to the fixed portion 122, and thus soldering failure due to deterioration of the terminal flatness easily occurs.

[0064] In addition, as shown in​Figure 3 Unlike the connector 100 of the first embodiment shown, when the surface mount terminal 120 that serves as the fulcrum is not positioned at the outermost end (e.g., the left end, right end, or other outer side) on one side of the arrangement direction, the position of the mounting portion 123 of the surface mount terminal 120 located on one side across the fulcrum will decrease, but the position of the mounting portion 123 of the surface mount terminal 120 on the other side will increase (away from the molten solder), thus making it easy for poor soldering to occur on the surface mount terminal 120 on the other side.

[0065] However, in the connector 100 of the first embodiment, as Figure 3 As shown, the surface mount terminal 120, which serves as a fulcrum, is positioned at the leftmost (outermost) end of the left side of the arrangement direction. Therefore, by tilting the connector 100, the positions of the mounting portions 123 of all surface mount terminals 120 move downwards (towards the direction of molten solder), thereby suppressing soldering defects. That is, as... Figure 3 As shown, the connector 100 of the first embodiment has the following structure: among the seven surface mount terminals 120, the surface mount terminal 120 with the smallest length dimension from the mounting portion 123 to the fixing portion 122 is disposed at the leftmost end of the left side surface. Figure 3 The connector 100 is arranged in a sequence from the left side to the right side, with the length of the mounting portion 123 to the fixing portion 122 either increasing or remaining the same. This minimizes the deterioration of terminal flatness and enables a connector 100 that is less prone to soldering defects. Furthermore, these effects have been confirmed through the inventors' simulation and empirical studies.

[0066] Reference above Figures 1-6 The structure of the connector 100 according to the first embodiment and the meaningful effects achieved by this structure have been described. However, the technical scope of the present invention is not limited to the scope described in the first embodiment above. Various modifications or improvements can be made to the first embodiment described above. Next, refer to... Figures 7-18 Various modifications of the connector of the present invention, namely the second to sixth embodiments, will be described below. Furthermore, in the second to sixth embodiments described below, sometimes the same reference numerals are used for components that are the same as or similar to those in the first embodiment described above, and descriptions are omitted. Additionally, the first direction, second direction, and third direction defined in the first embodiment will also be described here with the same definitions.

[0067] [Second Implementation]

[0068] Reference Figure 7 and Figure 8 The connector 200 of the second embodiment will be described.

[0069] As Figure 8 shown, the connector 200 of the second embodiment is configured such that, when the placement surface of the substrate 10 is viewed from above along the third direction, the columns of the plurality of surface mount terminals 120 arranged and configured from the left side surface side to the right side surface side in the second direction are two columns. That is, in the second embodiment, in Figure 8 , the plurality of mounting portions 123 are configured as the following two columns: a column close to the housing 110 indicated by a single-dot chain line with reference sign B, and a column away from the housing 110 indicated by a single-dot chain line with reference sign C.

[0070] Also, as Figure 7 shown, the connector 200 of the second embodiment has a structure in which, when all the columns of the plurality of surface mount terminals 120 are viewed, the surface mount terminal 120 having the smallest length dimension from the mounting portion 123 to the fixed portion 122 is arranged at the leftmost end on the left side surface side. In addition, in the second embodiment, the plurality of surface mount terminals 120 are arranged in the order of arrangement from the left side surface side to the right side surface side in the second direction in such a manner that the length dimension from the mounting portion 123 to the fixed portion 122 becomes larger or is the same dimension.

[0071] That is, in the connector 200 of the second embodiment, as Figure 7 shown, since the surface mount terminal 120 that becomes a fulcrum in the reflow soldering process is arranged at the leftmost end (outer side) on the left side surface side in the arrangement direction, even in the case where the columns of the plurality of surface mount terminals 120 are configured as two columns, the posture of the connector 100 tilts with the surface mount terminal 120 arranged at the leftmost end (outer side) as a fulcrum, and thus the positions of the mounting portions 123 of all the surface mount terminals 120 move in the direction in which they are lowered (the direction in which they approach the molten solder), and occurrence of soldering defects is suppressed compared to the related art. Therefore, according to the connector 200 of the second embodiment, occurrence of soldering defects can be appropriately prevented.

[0072] [Third Embodiment]

[0073] The connector 300 of the third embodiment will be described with reference to Figure 9 and Figure 10 .

[0074] As Figure 10 shown, the connector 300 of the third embodiment is configured such that, when the placement surface of the substrate 10 is viewed from above along the third direction, the columns of the plurality of surface mount terminals 120 arranged and configured from the left side surface side to the right side surface side in the second direction are two columns. That is, in the third embodiment, in Figure 10In the third embodiment, the plurality of mounting portions 123 are arranged in two columns as follows: a column close to the housing 110 indicated by a single-dot chain line labeled with reference sign D, and a column away from the housing 110 indicated by a single-dot chain line labeled with reference sign E.

[0075] In addition, as shown in Figure 9 , the connector 300 of the third embodiment has a structure in which, in all the columns of the plurality of surface mounting terminals 120 (both the column of reference sign D and the column of reference sign E), the surface mounting terminal 120 having the smallest length dimension from the mounting portion 123 to the fixed portion 122 is arranged at the leftmost end on the left side in the second direction. Also, as shown in Figure 9 and Figure 10 , in the connector 300 of the third embodiment, there is provided a structure in which the surface mounting terminal 120 arranged at the leftmost end on the left side in the second direction in all the columns is arranged so as to overlap a line indicated by a single-dot chain line labeled with reference sign F in Figure 10 when the connector 300 disposed on the placement surface of the substrate 10 is viewed from the first direction, i.e., the front-rear direction.

[0076] Also, in the third embodiment, in all the columns of the plurality of surface mounting terminals 120 (both the column of reference sign D and the column of reference sign E), the plurality of surface mounting terminals 120 are arranged in order of arrangement from the left side to the right side in the second direction in such a manner that the length dimension from the mounting portion 123 to the fixed portion 122 becomes larger or is the same.

[0077] That is, in the connector 300 of the third embodiment, as shown in Figure 9 , since the surface mounting terminal 120 that becomes a fulcrum in the reflow soldering process is arranged at the leftmost end (outer side) on the left side in the arrangement direction, and this arrangement structure is adopted for all the columns of the plurality of surface mounting terminals 120 (both the column of reference sign D and the column of reference sign E), even in the case where the columns of the plurality of surface mounting terminals 120 are arranged in two columns, the posture of the connector 100 as a whole is tilted with the surface mounting terminal 120 arranged at the leftmost end (outer side) as a fulcrum, and thus the positions of the mounting portions 123 of all the surface mounting terminals 120 are moved in the direction of downward inclination (direction close to the molten solder), and occurrence of soldering defects is suppressed compared to the prior art. Therefore, according to the connector 300 of the third embodiment, occurrence of soldering defects can be appropriately prevented.

[0078] [Fourth Embodiment]

[0079] The connector 400 of the fourth embodiment will be described with reference to Figure 11 and Figure 12 .

[0080] The connector of the present application can adopt a structure in which, as shown in Figure 11 and Figure 12 the connector 400 of the fourth embodiment, a plurality of surface mount terminals 120 and a plurality of through-hole terminals 130 are mixed as a plurality of terminals. In the fourth embodiment, a mode example in which the surface mount terminals 120 are provided in five and the through-hole terminals 130 are provided in four is shown.

[0081] As shown in Figure 11 , the plurality of through-hole terminals 130 each have a terminal portion 131 disposed inside the housing 110, a fixing portion 132 fixed to the housing 110, and a mounting portion 133 soldered in a state in which the through-hole 12 formed on the placement surface of the substrate 10 is made conductive. Also, in the connector 400 of the fourth embodiment, the connector is configured so that, among the plurality of terminals composed of the plurality of surface mount terminals 120 and the plurality of through-hole terminals 130, the terminals whose length dimensions from the mounting portions 123, 133 to the fixing portions 122, 132 are the largest are all through-hole terminals 130.

[0082] In the connector of the present application, in order to solve the problem of soldering failure caused by deterioration of the terminal flatness of the surface mount terminals, it is necessary to arrange the surface mount terminals 120 that become fulcrums in the reflow soldering process at the leftmost end (outer side) of the left side in the arrangement direction. Therefore, it is necessary to adopt a structure in which, among the plurality of surface mount terminals 120 possessed by the connector of the present application, the surface mount terminals 120 whose length dimensions from the mounting portions 123 to the fixing portions 122 are the smallest are arranged at the leftmost end (or the rightmost end) of the left side in the second direction. However, for the through-hole terminals, the problem of soldering failure caused by deterioration of the terminal flatness does not occur, so for the through-hole terminals 130, it is not necessary to consider the length dimensions from the mounting portions 133 to the fixing portions 132 and the arrangement can be made freely. Therefore, if the terminals whose length dimensions from the mounting portions 123, 133 to the fixing portions 122, 132 are the largest among the plurality of terminals are all through-hole terminals 130, the structure of the present application, which arranges the surface mount terminals 120 that become fulcrums in the reflow soldering process at the leftmost end (or the rightmost end) of the left side in the arrangement direction, is made easy to apply. That is, according to the connector 400 of the fourth embodiment, the range of application of the connector of the present application can be expanded. Also, in the connector 400 of the fourth embodiment, although the surface mount terminals 120 and the through-hole terminals 130 are mixed, by making the terminals whose heights of the fixing portions 122, 132 are the highest all through-hole terminals 130, the height of the fixing portion 122 of the surface mount terminal 120 is relatively lowered, so the influence of thermal expansion of the housing 110 is reduced.

[0083] [5th Embodiment]

[0084] Referring to Figure 13 and Figure 14 The 5th embodiment connector 500 will be described. The 5th embodiment connector 500 is a modification of the 4th embodiment connector 400.

[0085] In Figure 11 and Figure 12 the 4th embodiment connector 400, the surface mount terminals 120 and the through-hole terminals 130 are arranged in the same column, respectively. However, the range of application of the present application is not limited to the structure in which the same kind of terminals are arranged in the adjacent manner as shown in the 4th embodiment, but also includes a structure in which a plurality of kinds of terminals are mixedly arranged.

[0086] That is, a structure can be adopted in which, as in the 5th embodiment connector 500 shown in Figure 13 and Figure 14 , one surface mount terminal 120 and three through-hole terminals 130 are arranged in the column close to the housing 110. In the 5th embodiment connector 500, the surface mount terminal 120 whose length dimension from the mounting portion 123 to the fixing portion 122 is the smallest, which becomes a fulcrum in the reflow soldering process, is arranged at the leftmost end (outer side) of the left side in the arrangement direction, and therefore, even in the case where a plurality of surface mount terminals 120 and a plurality of through-hole terminals 130 are mixedly arranged, the posture of the connector 100 is tilted with the surface mount terminal 120 arranged at the leftmost end (outer side) as a fulcrum, and therefore, the positions of the mounting portions 123 of all the surface mount terminals 120 are moved in the downward direction (direction close to the molten solder), and occurrence of soldering defects is suppressed as compared with the prior art. Therefore, in the 5th embodiment connector 500, occurrence of soldering defects can also be appropriately prevented.

[0087] [6th Embodiment]

[0088] Referring to Figures 15-18 The 6th embodiment connector 600 will be described.

[0089] Figures 15-18 The 6th embodiment connector 600 has a structure in which a plurality of surface mount terminals 120, 140 and a plurality of through-hole terminals 130 are mixed as a plurality of terminals. However, as shown in Figure 16 , the terminal portion 141 of the surface mount terminal 140 and the terminal portion 131 of the through-hole terminal 130 are arranged in the same column. In the 6th embodiment connector 600, the surface mount terminal 140 is arranged in the column close to the housing 110, and the through-hole terminal 130 is arranged in the column far from the housing 110. Figure 16The configuration shown by the single-dotted line marked with reference numeral G in the attached drawing is such that it overlaps in the third direction, i.e., the vertical direction. This configuration can cause interference between the terminals extending from the rear side of the housing 110.

[0090] Therefore, in the sixth embodiment, as Figure 18 As shown, for the surface mount terminal 140 where the fixing portion 142 is located directly below the fixing portion 132 of the through-hole terminal 130, a horizontally curved crank portion 144 is provided between the fixing portion 142 and the mounting portion 143 of the surface mount terminal 140. By providing the crank portion 144 on the surface mount terminal 140, the surface mount terminal 140 can be positioned away from the through-hole terminal 130, and the mounting portion 143 of the surface mount terminal 140 is soldered to the pad portion 11 of the substrate 10 at a position further away from the housing 110 than the mounting portion 133 of the through-hole terminal 130. Therefore, the configuration freedom of the terminal portion of the connector of the present invention is increased (especially with reference to...). Figure 15 That is, by providing a crank portion with surface-mounted terminals, the present invention can be easily applied to various connector shapes, and it is also easy to perform visual inspection of the soldering status of the mounting portion 143.

[0091] Furthermore, in the sixth embodiment, among the multiple terminals 120, 130, and 140 of the connector 600, the surface mount terminal 120 with the smallest length dimension from the mounting portion 123 to the fixing portion 122 is positioned at the leftmost end of the left side in the second direction. Additionally, in the connector 600 of the sixth embodiment, although surface mount terminals 120 and 140 and through-hole terminals 130 are mixed, by making all terminals with the highest height of the fixing portions 122, 132, and 142 through-hole terminals 130, the height of the fixing portions 122 and 142 of the surface mount terminals 120 and 140 is relatively reduced, thereby reducing the impact of thermal expansion of the housing 110. Therefore, in the connector 600 of the sixth embodiment, it is also possible to appropriately prevent soldering defects.

[0092] Reference above Figures 1-18 Various embodiments of the connector of the present invention, namely the first to the sixth embodiments, have been described. Next, referring to... Figures 19-26 Specific structures, i.e., embodiments, that can be adopted for the connector of the present invention will be described. Furthermore, in the embodiments described below, sometimes the same reference numerals are used for components that are the same as or similar to those in the first to sixth embodiments described above, and descriptions are omitted. Additionally, the first direction, second direction, and third direction defined in the first to sixth embodiments will also be described here with the same definitions.

[0093] [Embodiment]

[0094] As shown in Figures 19-26 , the connector 700 of the present embodiment has a housing 110 made of resin, a cover 112 made of metal provided to the housing 110, a plurality of surface mount terminals 120, 140 which are a part of a plurality of terminals made of metal provided to the housing 110, and a plurality of through-hole terminals 130 which are a remaining part of the plurality of terminals made of metal provided to the housing 110. In the connector 700 of the present embodiment, two surface mount terminals 120 provided with no crank portion 144 are provided, three through-hole terminals 130 are provided, and two surface mount terminals 140 provided with a crank portion 144 are provided.

[0095] Further, as shown in Figures 19-24 , the connector 700 of the present embodiment is used by being provided on a placement surface of a substrate 10 having a placement surface parallel to an XY plane formed by a first direction, i.e., an X direction, and a second direction, i.e., a Y direction. The substrate 10 of the present embodiment is, for example, referred to as a printed wiring board, and on the placement surface of the substrate 10, four conductive pad portions 11 to be soldered to the four surface mount terminals 120, 140 in total and three through-holes 12 to be soldered to the three through-hole terminals 130 are formed.

[0096] Referring to Figures 19-24 , for the connector 700 of the present embodiment, electrical connection of the connector 700 of the present embodiment and an opposite-side connector not shown is performed by inserting the opposite-side connector into an opening portion opened on a front surface side. Further, for the connector 700 of the present embodiment, connection of the connector 700 and a circuit wiring of the substrate 10 can be performed via the conductive pad portions 11 and the through-holes 12 formed on the placement surface of the substrate 10.

[0097] As shown in Figure 19 , the housing 110 of the present embodiment is a member made of resin, and has an opening penetrating in a direction parallel to the first direction, i.e., the X direction. By inserting the surface mount terminals 120, 140, the through-hole terminals 130 from the rear of the housing 110 toward the front, it is possible to arrange the terminal portions 121, 131, 141 inside the opening of the housing 110.

[0098] As shown in Figure 19 , Figure 20 , Figure 22 , the cover 112 of the present embodiment has two side surfaces 112a, one top surface 112b, and one rear surface 112c. The cover 112 is a member made of metal, and is provided so as to cover the left and right side surfaces, the top surface, and the rear surface of the housing 110, thereby making it possible to improve electromagnetic shielding performance of the connector 700.

[0099] Below the two side surfaces 112a constituting the cover 112, four feet 113 are formed in total, two on each side surface 112a. By inserting and pressing the four feet 113 in the -Z direction from above the housing 110 toward the bottom, the fixing of the cover 112 with respect to the housing 110 is performed. In addition, by embedding the four feet 113 in the mounting holes 13 formed in the substrate 10, stable setting of the connector 700 with respect to the substrate 10 can be achieved.

[0100] As shown in Figs. 1 and 2, the surface mounting terminal 120 of the present embodiment is a member whose overall appearance shape is a substantially crank shape in which a rod-shaped member made of metal is bent by 90 degrees in two places in directions opposite to each other (longitudinal and horizontal directions). The place extending toward the front is constituted as a terminal portion 121 for performing electrical connection with an opposite connector not shown. The terminal portion 121 is a place disposed inside the opening of the housing 110 when the surface mounting terminal 120 is inserted from the rear of the housing 110 toward the front. Figure 25 Figure 26 In addition, the surface mounting terminal 120 of the present embodiment has a fixing portion 122 which is a place for fixedly connecting with the housing 110 when the surface mounting terminal 120 is inserted from the rear of the housing 110 toward the front. The fixing portion 122 of the present embodiment is constituted as a rod-shaped member extending toward a first direction, i.e., the X direction, and in order to achieve reliable fixed connection with the housing 110, a concave-convex shaped portion 122a constituted by a concave-convex shape is formed in the surface shape of the fixing portion 122, and a flange shaped portion 122b constituted by a flange-like place is formed. The frictional force for performing fixation with the housing 110 is increased by the concave-convex shaped portion 122a, and the fixation with the housing 110 is reinforced and positioned by the flange shaped portion 122b.

[0101] In addition, the surface mounting terminal 120 of the present embodiment has a fixing portion 122 which is a place for fixedly connecting with the housing 110 when the surface mounting terminal 120 is inserted from the rear of the housing 110 toward the front. The fixing portion 122 of the present embodiment is constituted as a rod-shaped member extending toward a first direction, i.e., the X direction, and in order to achieve reliable fixed connection with the housing 110, a concave-convex shaped portion 122a constituted by a concave-convex shape is formed in the surface shape of the fixing portion 122, and a flange shaped portion 122b constituted by a flange-like place is formed. The frictional force for performing fixation with the housing 110 is increased by the concave-convex shaped portion 122a, and the fixation with the housing 110 is reinforced and positioned by the flange shaped portion 122b.

[0102] In addition, the surface mounting terminal 120 of the present embodiment has a fixing portion 122 which is a place for fixedly connecting with the housing 110 when the surface mounting terminal 120 is inserted from the rear of the housing 110 toward the front. The fixing portion 122 of the present embodiment is constituted as a rod-shaped member extending toward a first direction, i.e., the X direction, and in order to achieve reliable fixed connection with the housing 110, a concave-convex shaped portion 122a constituted by a concave-convex shape is formed in the surface shape of the fixing portion 122, and a flange shaped portion 122b constituted by a flange-like place is formed. The frictional force for performing fixation with the housing 110 is increased by the concave-convex shaped portion 122a, and the fixation with the housing 110 is reinforced and positioned by the flange shaped portion 122b.

[0103] As shown in Figs. 1 and 2, the surface mounting terminal 120 of the present embodiment is a member whose overall appearance shape is a substantially crank shape in which a rod-shaped member made of metal is bent by 90 degrees in two places in directions opposite to each other (longitudinal and horizontal directions). The place extending toward the front is constituted as a terminal portion 121 for performing electrical connection with an opposite connector not shown. The terminal portion 121 is a place disposed inside the opening of the housing 110 when the surface mounting terminal 120 is inserted from the rear of the housing 110 toward the front. Figure 25 Figure 26 ​​As shown, the through-hole terminal 130 of the present embodiment is a component in which a rod-shaped component made of metal is bent 90 degrees in the longitudinal direction at one portion to have a substantially L-shaped appearance. The through-hole terminal 130 has a terminal portion 131 disposed inside the housing 110, a fixing portion 132 fixed to the housing 110, and a mounting portion 133 soldered in a state in which the through-hole 12 formed on the placement surface of the substrate 10 is made conductive.

[0104] The fixing portion 132 of the through-hole terminal 130 of the present embodiment is configured as a rod-shaped component extending in the first direction, i.e., the X direction, and, in order to achieve a reliable fixed connection with the housing 110, a concave-convex shaped portion 132a composed of a concave-convex shape is formed in the surface shape of the fixing portion 132, and a flange shaped portion 132b composed of a flange-like portion is formed. The frictional force for fixing with the housing 110 is increased by the concave-convex shaped portion 132a, and the fixing with the housing 110 is reinforced and positioned by the flange shaped portion 132b.

[0105] As a soldering method of the mounting portion 133 of the through-hole terminal 130 of the present embodiment to the through-hole 12, for example, a paste-like solder can be applied in advance to the position of the through-hole 12, and the connector 700 can be disposed on the substrate 10 in a state in which the mounting portion 133 is made conductive to the through-hole 12, and then placed in a reflow furnace, and the paste-like solder is melted by heating in the reflow furnace, thereby completing the soldering of the mounting portion 133 to the through-hole 12.

[0106] Also, in the present embodiment, there is a surface mount terminal 140 in which the fixing portion 142 is located directly below the fixing portion 132 possessed by the through-hole terminal 130. Regarding this surface mount terminal 140, as shown in Figure 25 and Figure 26 A crank portion 144 bent in a crank shape in the horizontal direction is provided between the fixing portion 142 and the mounting portion 143 possessed by the surface mount terminal 140. By providing the crank portion 144 in the surface mount terminal 140, the surface mount terminal 140 can be disposed so as to avoid the through-hole terminal 130, and the mounting portion 143 possessed by the surface mount terminal 140 is soldered to the land portion 11 of the substrate 10 at a position farther from the housing 110 than the mounting portion 133 possessed by the through-hole terminal 130, and thus the degree of freedom of disposition of the terminal portion of the connector of the present embodiment is increased (see Figure 23 in particular). Also, as shown in Figure 23 by employing the surface mount terminal 140 provided with the crank portion 144, the fixing portion 142 of the surface mount terminal 140 located directly below the through-hole terminal 130 at the highest position is located outside (on the rear side farther from the housing 110) of the through-hole terminal 130, and thus the mounting portion 143 of the surface mount terminal 140 can be directed to the outside, and an effect that appearance inspection can be easily performed can be obtained.

[0107] Further, as shown in Figure 25 and Figure 26 In the fixing portion 142 of the surface mounting terminal 140 of the present embodiment as well, in order to achieve a reliable fixed connection with the housing 110, a concave-convex shaped portion 142a composed of a concave-convex shape is formed in the surface shape of the fixing portion 142, and a flange shaped portion 142b composed of a flange-like portion is formed. The frictional force for fixing with the housing 110 is increased by the concave-convex shaped portion 142a, and the fixing with the housing 110 is reinforced and positioned by the flange shaped portion 142b.

[0108] As shown in Figure 24 When the connector 700 provided on the placement surface of the substrate 10 is viewed from the rear side in the first direction, of the 7 terminals possessed by the connector 700 of the present embodiment, 2 surface mounting terminals 120 and 2 surface mounting terminals 140 are arranged from the left side surface side to the right side surface side in the second direction. In the present embodiment, the surface mounting terminals 120, 140 totaling 4 are structured such that the surface mounting terminals 140 having the smallest length dimension from the mounting portion 123 to the fixing portion 122 are arranged at the position of the most distal end on the left side surface side in the second direction (i.e., the left end in Figure 24 the paper right end), and are arranged in order of arrangement from the left side surface side to the right side surface side in the second direction in a manner in which the length dimension from the mounting portion 123 to the fixing portion 122 becomes larger or is the same.

[0109] In addition, of the 7 terminals possessed by the connector 700 of the present embodiment, the terminals other than the surface mounting terminals 120, 140 totaling 4 are composed of the through-hole terminals 130, and in particular, in the present embodiment, of the plurality of terminals composed of the plurality of surface mounting terminals 120, 140 and the plurality of through-hole terminals 130, the terminal having the largest length dimension from the mounting portion 123, 133, 143 to the fixing portion 122, 132, 142 (the second terminal from the paper right side in Figure 24 ) is composed of the through-hole terminal 130.

[0110] Here, for the mounting portions 123 and 143 of the surface mount terminals 120 and 140 in the reflow soldering process, a lift related to the height of the fixing portions 122 and 142 occurs, leading to a deterioration in terminal flatness. Due to the deterioration in terminal flatness, the orientation of the connector 700 is prone to tilting due to vibration and surface tension of the molten solder during the reflow soldering process. Furthermore, according to the inventor's research, when the orientation of the connector 700 tilts, the mounting portions 123 and 143 of the surface mount terminals 122 and 140, where the height of the fixing portions 122 and 142 is at its lowest position, become the fulcrum (the center of rotation when tilted).

[0111] Based on this insight, the existing connector structure disclosed in Patent Document 1 above is verified. When multiple surface mount terminals 120 and 140 with different lengths from mounting portions 123 and 143 to fixing portions 122 and 142 are configured differently, due to the heat effect during the reflow soldering process, the larger the length from mounting portions 123 and 143 to fixing portions 122 and 142, the larger the expansion length. The position of the mounting portions 123 and 143 of the multiple surface mount terminals 120 and 140 will change due to the length from mounting portions 123 and 143 to fixing portions 122 and 142, thus making it easy for poor soldering to occur due to the deterioration of terminal flatness.

[0112] In addition, with Figure 24 Unlike the connector 700 shown in this embodiment, when the surface mount terminals 120 and 140, which serve as fulcrums, are not positioned at the outermost end (e.g., the left end, right end, or other outer side) on one side of the arrangement direction, the mounting portions 123 and 143 of the surface mount terminals 120 and 140 located on one side across the fulcrum will decrease, while the mounting portions 123 and 143 of the surface mount terminals 120 and 140 on the other side will increase (away from the molten solder). Therefore, poor soldering is likely to occur on the surface mount terminals 120 and 140 on the other side.

[0113] However, in the connector 700 of this embodiment, as Figure 24 As shown, the surface mount terminal 140, which serves as a fulcrum, is positioned at the leftmost (outermost) end of the left side of the arrangement direction. Therefore, by tilting the connector 700, the mounting portions 123 and 143 of all surface mount terminals 120 and 140 move in a downward direction (closer to the direction of molten solder), thereby suppressing soldering defects. That is, as Figure 24 As shown, the connector 700 of this embodiment has the following structure: among the four surface mount terminals 120 and 140, the surface mount terminal 140 with the smallest length dimension from the mounting portion 123 and 143 to the fixing portion 122 and 142 is located at the leftmost end of the left side face. Figure 24and the surface mount terminals 120, 140 are arranged in order from the left side surface side to the right side surface side in a manner that the length dimension from the mounting portion 123, 143 to the fixed portion 122, 142 becomes larger or is the same, and thus it is possible to minimize the deterioration of the flatness of the terminals and to realize the connector 700 in which the occurrence of poor welding is unlikely. Furthermore, these effects were confirmed through simulation and empirical research by the inventor.

[0114] The preferred embodiments of the present application have been described above, but the technical scope of the present application is not limited to the range described in the above embodiments. Various changes or modifications can be made to the above embodiments.

[0115] For example, in the above-described embodiments and the like, a case in which the surface mount terminal 120, 140, which is the smallest in the length dimension from the mounting portion 123, 143 to the fixed portion 122, 142 and becomes a fulcrum in the reflow soldering process, is arranged at the leftmost end on the left side surface side is exemplified. However, in the present application, a structure can also be adopted in which the surface mount terminal 120, 140, which becomes a fulcrum, is arranged at the rightmost end (outer side) on the right side surface side in the arrangement direction, and the plurality of surface mount terminals 120, 140 are arranged in order from the right side surface side toward the left side surface side in a manner that the length dimension from the mounting portion 123, 143 to the fixed portion 122, 142 becomes larger or is the same. In the case where this structure is adopted, the same effects as the above-described embodiments and the like can also be obtained.

[0116] The mode obtained by applying such changes or modifications is also included in the technical scope of the present application and can be understood from the description of the claims.

Claims

1. A connector having: A resin-made casing; as well as Multiple metal terminals are disposed within the housing. The connector is disposed on the mounting surface of the substrate, the substrate having a mounting surface parallel to a plane formed by a first direction and a second direction that are orthogonal to each other. Its features are, Some or all of the plurality of terminals are configured as a plurality of surface mount terminals. The plurality of surface mount terminals each have: Terminal portion, which is disposed inside the housing; A fixing part, which is fixed to the housing; as well as The mounting portion is soldered to a conductive pad formed on the mounting surface of the substrate. When the connector disposed on the mounting surface of the substrate is viewed from a first direction, the plurality of surface mount terminals are arranged from one side to the other in a second direction, and... The surface mount terminal with the smallest length from the mounting portion to the fixing portion among the plurality of surface mount terminals is positioned at the outermost end on one side in the second direction, and is arranged in a manner from one side to the other in that the length from the mounting portion to the fixing portion either increases or remains the same. The substrate is configured such that, when viewed from a third direction orthogonal to the first and second directions, the plurality of surface mount terminals arranged from one side of the second direction to the other are in two or more columns. In all the rows of the plurality of surface mount terminals, the surface mount terminal with the smallest length dimension from the mounting portion to the fixing portion is positioned at the outermost end on one side in the second direction, and, All columns of surface-mount terminals located at the far end of one side in the second direction are positioned to overlap when viewed from the first direction as a connector disposed on the mounting surface of the substrate.

2. The connector according to claim 1, characterized in that, The plurality of terminals includes a plurality of through-hole terminals. The plurality of through-hole terminals each have: Terminal portion, which is disposed inside the housing; A fixing part, which is fixed to the housing; as well as The mounting part is used for welding in a state where the through hole formed on the mounting surface of the substrate is open. All of the terminals with the largest length from the mounting part to the fixing part are through-hole terminals.

3. The connector according to claim 2, characterized in that, For the surface mount terminal whose fixing portion is located directly below the fixing portion of the through hole terminal, a crank portion bent in a crank shape is provided between the fixing portion and the mounting portion of the surface mount terminal, so that the mounting portion of the surface mount terminal is soldered to the pad portion of the substrate at a position further away from the housing than the mounting portion of the through hole terminal.

4. A connector having: A resin-made casing; as well as Multiple metal terminals are disposed within the housing. The connector is disposed on the mounting surface of the substrate, the substrate having a mounting surface parallel to a plane formed by a first direction and a second direction that are orthogonal to each other. Its features are, Some or all of the plurality of terminals are configured as a plurality of surface mount terminals. The plurality of surface mount terminals each have: Terminal portion, which is disposed inside the housing; A fixing part, which is fixed to the housing; as well as The mounting portion is soldered to a conductive pad formed on the mounting surface of the substrate. When the connector disposed on the mounting surface of the substrate is viewed from a first direction, the plurality of surface mount terminals are arranged from one side to the other in a second direction, and... The surface mount terminal with the smallest length from the mounting portion to the fixing portion among the plurality of surface mount terminals is positioned at the outermost end on one side in the second direction, and is arranged in a manner from one side to the other in that the length from the mounting portion to the fixing portion either increases or remains the same. The plurality of terminals includes a plurality of through-hole terminals. For the surface mount terminal whose fixing portion is located directly below the fixing portion of the through hole terminal, a crank portion bent in a crank shape is provided between the fixing portion and the mounting portion of the surface mount terminal, so that the mounting portion of the surface mount terminal is soldered to the pad portion of the substrate at a position further away from the housing than the mounting portion of the through hole terminal.

5. The connector according to claim 4, characterized in that, The substrate is configured such that, when viewed from a third direction orthogonal to the first and second directions, the plurality of surface mount terminals arranged from one side of the second direction to the other are in two or more columns. In all the rows of the plurality of surface mount terminals, the surface mount terminal with the smallest length dimension from the mounting portion to the fixing portion is positioned at the outermost end on one side in the second direction, and, All columns of surface-mount terminals located at the far end of one side in the second direction are positioned to overlap when viewed from the first direction as a connector disposed on the mounting surface of the substrate.

6. The connector according to claim 4 or 5, characterized in that, The plurality of through-hole terminals each have: Terminal portion, which is disposed inside the housing; A fixing part, which is fixed to the housing; as well as The mounting part is used for welding in a state where the through hole formed on the mounting surface of the substrate is open. All of the terminals with the largest length from the mounting part to the fixing part are through-hole terminals.

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