JPH09167649A - Surface mount connector - Google Patents

Abstract

PURPOSE: To provide a surface mount connector with simple structure and easily usable in a holding device by integrally forming a connector formed by connecting a contact piece and a base with a intermediate curved part from a conductive sheet. CONSTITUTION: Plural surface mount connectors are continuously formed in a material plate 19. A first intermediate contact part 16a is bent, and a first base part 12 a is displaced to the surface in almost the normal line direction relative to a first contact part 14a. A bridge part 14c is bent, first and second contact parts 14a, 14b are arranged in parallel, and a space 14d is formed. A second intermediate connecting part 16b is bent, and a projecting part 12d is inserted into a cut-out part 12f. By this constitution, when the connector 10 is soldered to a printed circuit board, molten solder flows in a gap 14d and contact parts 14a, 14d serve as a filled pin. The integrity of the contact pin or a test point can be kept during being held with a holding device and arranged in a land on the printed circuit board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to electronic component connectors, and more particularly to sequentially gripping one electronic component connector at a time and moving it from a gripping table to a mounting table for accurate mounting on a printed circuit board. The present invention relates to a surface mount electrical component connector which can be mounted on a printed circuit board by an automatic component mounting device having capability.

[0002]

2. Description of the Related Art Various structures of electronic component connectors for mounting on a printed circuit board have been proposed. Many of these are for pins or posts formed by stamping sheet material. Often, the pins or posts are initially connected to each other by carrier strips to allow automated mounting on a printed circuit board. The above pins or posts take on different shapes, including relatively flat shapes as shown in US Pat. No. 5,073,132. A thin flat post is disclosed in U.S. Pat. No. 3,864,014. Box type male connector is US Pat. No. 3,37
5,486. Pins having a relatively large cross section are disclosed in U.S. Pat. Nos. 4,017,142 and 3,42.
No. 8,934.

US Pat. Nos. 4,395,087 and 3,
In 663,931, a generally square solid pin is used to make electrical contact. In U.S. Pat. No. 4,395,087 the pins are fixed on a carrier strip and in U.S. Pat. No. 3,663,931 a single pin is formed integrally with the socket contacts. It seems that it is made of punched material. In U.S. Pat. No. 4,369,572, a generally solid square pin is soldered to a carrier strip. However, none of the conventional structures disclose pin connectors formed from sheet members that are suitable or optimal for surface mounting on printed circuit boards.

[0004]

As shown in the tape of FIG. 17, a single open surface mount pin terminal that is inserted into a plastic pocket carrier, ie, an individual plastic pocket P carried by a tape T. There are also known ways to provide. However, this method is too problematic and has not been accepted by industry. First, the provision of a plastic pocket, that is, a bag P,
Increase the cost per surface mount component. Furthermore,
Since the surface mount pins are usually held in larger pockets or containers, the component has at least some freedom of movement therein, and therefore there is a pocket or pilot hole H for the purpose of accurately positioning the pins. Nevertheless,
It becomes difficult to accurately position the parts on the gripping table of the automatic gripping and arranging device having the vacuum nozzle for the purpose of positioning. In these devices, the parts must be very accurately positioned during the gripping period,
Even a slight displacement from the required position can damage the component and / or the nozzle.

In view of the above, there have been considerable advances in the construction and use of gripping and placement devices, but these devices primarily provide sufficient surface to provide a suction surface for the nozzle. It is used to grip and place parts that have. Therefore, these devices have been used primarily to grip and place transistors, integrated circuits, capacitors, and many other electronic components that have the requisite surfaces. Since electrical post posts, test points, IDCs, and other sockets are not in the shape required by the gripping and placing device, it is impossible to automatically mount these parts using surface mounting technology. There was a case.

To date, surface mount posts have been inserted in a header shape that utilizes a plastic body to hold a row of components and placed on a substrate by a gripping and placement robot. If test points, tabs, IDCs or any other type of single terminal were required, the board and manufacturing process had to be a combination of surface mount and through hole technologies.
This is because these terminals can be provided only by through holes.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a surface mount electronic component connector which does not have the problems associated with the surface mount connector. It is another object of the present invention to provide a surface mount electronic component connector having a simple structure and a low manufacturing cost. A further object of the present invention is to provide a surface mount electronic component connector that can be easily used in a surface mount automatic gripping and arranging device. It is a further object of the present invention to provide a surface mount electronic component connector which can be efficiently mounted on a printed circuit board while substantially eliminating waste due to damage to the connector. It is a further object of the present invention to provide a surface mount electronic component connector of the type described above to which the method of mounting posts, test points, IDCs and female receptacles can be applied. It is a further object of the present invention to provide a surface mount electronic component connector of the type described above which uses continuous stamping technology and does not require the use of a separate bag or tape to carry the conductors and which can be inexpensively manufactured. Especially. The present invention provides a novel device for surface mount terminals that can be easily and effectively used with a feeder used with a grip and place device to eliminate the need to combine surface mount and through hole technologies.

In accordance with the present invention, a surface mount electronic component connector mounted on a generally planar conductor surface of a printed circuit board has a base defining a surface, which base is attached to the printed surface. It has a generally flat surface that is suitable for being connected and secured to a flat conductor surface of a circuit board. The contact has at least a portion protruding from the base in a direction substantially normal to a surface defined by the base. At least one intermediate curving connection unit integrally connects the contactor and the base, and the contactor, the base and at least one intermediate curving connection unit as a whole,
It is integrally formed from a substantially flat conductor sheet. The contact portion of the connector can be in the form of a pin, a test point, an electronic female receptacle or an electronic insulation displacement connector.

When used in an automatic grip and place device, the strip to which the series of surface mount connectors are connected comprises a frangible coupling means between two adjacent connectors. Thus, the strip of connectors goes to the automated mounting table, and the connector at the downstream end of the strip is broken by breaking the frangible coupling means between the connector at this downstream end and the adjacent connector immediately following the strip. Cut off from the strip. The connection of the surface mount connector is preferably spirally wound on a spool or bobbin to reach the automated mount table without damaging the strip. The invention also relates to a surface mount connector, a surface mount connector, a blank forming a plurality of surface mount connectors connected in series, and a method of forming these connectors.

[0010]

EXAMPLES Examples will be described with reference to the drawings. The same reference numerals are used for the same parts. In FIG. 1, an electronic component connector or contact suitable for mounting on the surface of a printed circuit board (PCB) is indicated generally by the reference numeral 10. The connector 10 includes a base 12 defining a surface, often referred to as a "land" or a "pad", that provides a generally planar surface suitable for contacting and securing a planar conductive surface of a printed circuit board. Have The electrical contact pin 14 has at least one portion extending from the base 12 generally normal to a plane defined by the base. At least one curved intermediate connecting portion integrally connects the contactor 14 and the base 12. As shown in the structure of FIG. 1, two intermediate curved connecting portions 16a, 16b are provided.
Connect the first contact portion 14a to the first base portion 12a and the second contact portion 14b to the second base portion 12b, respectively.

As shown in the drawing, the uppermost portions of the first and second contact portions 14a and 14b juxtaposed to each other are connected to each other by an integral curved bridge portion 14c. As shown, the juxtaposition of the contacts 14a, 14b forms a narrow gap, or space 14d, which facilitates the capillarity effect of the surface mount pin structure soldering process. At least one of the two thin strips (contact portions) 14a and 14b is plated, and when the base 12 of the pin terminal comes into contact with the molten solder paste, the molten solder rises in the gap 14d due to the capillary action. Two parts 14
Solder a and 14b to form solid pins that can be used as contact pins or test points.

Next, the structure of another surface mount connector according to the present invention for promoting the capillary action and its effect will be described below. An important feature of the present invention is that the electrical contacts, such as the contact pins 14 shown in FIG. 1, including the base 12 and the intermediate connecting portions 16a, 16b are made of a substantially flat conductor sheet member as described in FIG. Is to be formed. Such a structure allows for economical production of surface mount electronic connectors, and is equally important,
As will be described below, the connectors are formed of elongated strips that facilitate accurate positioning of the electronic component connectors in the grip and place system, thus allowing the connectors to be used in the grip and place system.

Referring to FIG. 2, there is shown a blank 19 from which the connector 10 of FIG. 1 is formed. The material plate 19 is
As shown, a plurality of surface mount connectors are connected in series, which is an electrical conductor of the same blank material punched continuously along the strip as shown. It is formed as a stamp from an elongated strip of flat sheet. Only the central material plate 19a is shown by a solid line outline, and the material plate 19b immediately below and the material plate 19c immediately above are shown by chain lines. All blanks are similarly formed and are connected to each other by a frangible connecting tab strip or carrier 18 which connects adjacent blanks to each other.

Each material plate 19 is, as shown in FIG.
The base includes a base suitable for fixing to a printed circuit board to be connected, a contact, and at least one intermediate connecting portion integrally connecting the contact to the base. With respect to the blank shown in FIG. 2 for forming the contact pin of FIG. 1, the first base portion 12a comprises a generally U-shaped member having two parallel members 12c on opposite sides of the contact portion 14a, Each of them has a protrusion 12d extending inward as shown. The two parallel members 12c are connected to the lateral member 12e, and the lateral member 12e is continuous with the contact portion 14a at the center thereof by the intermediate connecting portion 16a. The bridge portion 14c is shown as a narrow or neck down portion between the first and second contact portions 14a, 14b. At the upper end of the contact portion shown in FIG. 2, that is, at the free end, the second base portion 12b is provided,
It is shown as tapered on both sides, i.e. on the outside where the lateral cutouts 12f are provided. As shown in FIG. 1, the second base portion 12b is the base portion 12b.
When a and 12b are arranged on the same surface of the base 12, they are accommodated in the region between the parallel members 12c and have a size so as to occupy substantially that region.

When the material plate 19 is formed as shown in FIG. 2, the surface mount connector 10 has the first intermediate connecting portion 16a.
The material plate is deformed so as to bend at approximately 90 °, and thus the first base portion 12a is displaced to a surface approximately in the normal direction with respect to the first contact portion 14a. The second contact portion 14b is then bent around the bridge portion 14c by 180 ° with respect to the first contact portion 14a, and thus the contact portions 14a, 1
4b are juxtaposed as shown in FIG. Finally, the second base portion 12b gives a 90 ° bend to the second intermediate connecting portion 16b, and the protrusion 12d is inserted into the notch 12f as shown in FIG. Is displaced. Other surface mount connectors are also formed in the process of forming the material plate as described above, or if the present invention is applied to many other surface mount connector structures, those skilled in the art can easily use the following: It can be formed by the process according to the modification from the above description.

The combination of the protrusion 12d and the notch 12f forms a locking mechanism, which allows the first and second base portions 12a and 12b and the first and second contact portions 14 to be formed.
It prevents the a and 14b from coming apart, especially before assembly and mounting on a printed circuit board. With this structure, during the period of processing by the gripping and placing device, cutting off the connector from the strip, gripping the connector at the gripping point, and placing the connector on the land on the printed circuit board to be soldered,
The integrity of the contact pin or test point is maintained in the preferred shape. Therefore, there is a certain resilience, or “memory”
Even if the connector is stamped from a flexible sheet member having, the connector has the advantage of a solid pin. Of course, after the connector 10 is soldered to the printed circuit board, the contact portions 14a and 14b flow into the gap, that is, the space 14d, and effectively become solid pins due to the capillary action of the solid solder.

The flat base of the embodiment of FIGS. 1 and 2 is
Squares are often preferred to match the lands or pads of the printed circuit board, which are often square. However, this is not an important aspect of the present invention, and any aspect can be made by selecting an appropriate size for the various base parts already described. FIG.
And for the shape of the base of FIG. 2, except for the central portion, the flat base 12 is a solid surface for effective contact and sticking to the lands or pads of the printed circuit board. It is preferable.

However, at the center of the base, there is at least the opening S as shown in FIG. As already explained, the solder rises into the opening S by the capillary action, enters the contact pin 14, and provides adhesiveness to the printed circuit board in that area. In all of the constructions using the present invention, the base of the connector has a substantially void-free metal surface with openings S that are made relatively small to maximize capillary action. Have,
When the solder reflows into the opening S, the connector is
Secured to the printed circuit board. This is generally possible with the least lift or lateral displacement, as the rise of the reflow solder pulls the base towards the printed circuit board with the same effect as a suction cup. This is important because the gripping and placement equipment requires maximum precision in the surface mount process, and undesired displacement of the component during solder reflow will result in the component after it has been placed accurately by the device. Cause a gap. To draw the base to the printed circuit board,
The inflow of the solder into the opening S of the base 12 or the space of the contact pin 14 (FIG. 1) or the gap 14d that effectively absorbs the excessive solder is caused by the size of the land or pad of the base and the printed circuit board. It has the secondary effect of reducing the importance of tolerance to height.

The space S (or gap 14d) must be sized to provide capillary action as already mentioned. Its size depends on many factors, including the characteristics of the solder, the cleanliness and area of the substrate and / or contact surface, the flatness of the substrate, and the like. There are many papers written about solder properties that deal with related topics of surface tension, wetting angle and capillary action. For example, "University Physics" Sears and Zemansky, Second Edition, Addison-Usley Publisher, 1
957, pages 231-235; "SMD Testing for Solderability" BM Allen, "Surface Mount Technology" 1
October 988, pages 17-18; "Evaluation of solderability of surface mount device using wet balance", Yoshida et al., International Tin Research Institute Report). One of ordinary skill in the art is aware of all relevant factors, so the size determination is straightforward. The number of spaces, their size and composition are not critical as long as the desired capillary action is obtained.

Next, FIGS. 3 and 4 show a contact pin 20 according to another embodiment of the present invention. Contact pin 2
0 includes an upper contact member 20a provided with a chamfered upper or free end 20b for easy insertion into a female contact receptacle. As is the case with the embodiment shown in FIGS. 1 and 2, the base 22 is generally U-shaped and has spaced parallel portions (base portions) 22a, 2.
2b, a lateral portion 22c, and a solder absorption space (opening) S. The upper contact member 20a extends into the width of the base 22 in the region of the base 22 as shown and defines a plurality of bifurcated portions that are substantially coplanar with the central contact member 20a. In FIG. 3 and FIG. 4, the expanded shoulder portion 20c is divided into the first and second branch portions 20d and 20e.
And a central branch portion 20f.

[0021] The separate curved intermediate connecting portion is connected to each of the branch portions,
It connects with the connected base part. The first lateral branch portion 20d is connected to the base portion 22a by a connecting portion 24a including the first and second curved portions 24c and 24d. Similarly, the connecting portion 24b connects the side branch portion 20e to the base portion 22b. A central base portion 22d, which is an extension of the central branch 20f, is connected to the curved portion 24e in order to maximize the area of the base, that is, the contact surface, with respect to the printed circuit board and to provide the solder receiving space S. There is. The curved portions 24c and 24e are bent by 90 °, and the curved portion 24d is bent by 180 °. Similar to the contact pins 14, the bases are connected to each other by connecting tabs, or carrier tabs 18, and selectively cut when the connector at the lower end of the strip is gripped by the mounting device shown by the vacuum gripping nozzle in FIG. It

In FIG. 5, a pin is shown which is generally similar to FIGS. 3 and 4 except that two bases are provided. The enlarged shoulder portion 20c is continuous with the first branch portion 20g and the second branch portion 20h. The connecting portions 24a are arranged on the same side in the contact pin 20 in FIG. 3, but are arranged on the opposite side in the contact pin 20a in FIG. Only two base parts 22e, 22f are provided, each connected to a corresponding one of the two branches, 180 ° and 90 ° respectively with the connection part of FIG.
They are connected by connecting portion curved portions 24d and 24e that form an angle.

In the embodiment of FIG. 5, two branch parts 20g,
The overall width of 20h is narrower than the width of the enlarged shoulder 20c to form the side connecting tabs or carrier strips 18 'and the adjacent connectors are cut at the base as in the embodiment shown in FIGS. Instead, it is cut at the shoulder. The particular position of the connecting tab or carrier strip is not important for the purposes of the present invention, and the particular position of the carrier strip or connecting tab is, at least in part, a function of the gripping and placement device, and in particular the connector Is a function of the structure of the feeder used to feed

FIG. 6 shows another contact pin structure that has some commonalities with the pins shown in FIGS. 3-5. In FIG. 6, the base 26 is shown in a continuous portion of the strip and defines a pair of (curved portions 28a, 28b) opposite sides. The contact pin 20 is located approximately in the center of the rectangle defined by the base 26. One curved intermediate connecting portion 26a
Is the contact pin 20 from one side of the base 26 as shown.
And extends from the other side to a point proximate to the contact pin 20. The tab or collar 30 is curled as shown. Thus, the intermediate connecting portions 26a and 26b are
Stabilize the position of the contact pin 20. As shown in FIG. 6, the base 26 is provided with one separate connecting tab or carrier strip 18a, 18b. Depending on the device used and how the tabs are fed to the gripping and placement device, there may be more than one carrier strip. Shown in phantom lines are holes S in the base 26 that absorb solder during reflow, as previously described.

The present invention is not limited to generally elongated contact pins, post posts or test points of the type shown in FIGS. FIG. 7 shows another embodiment of the present invention,
The contact is an insulation displacement connector (IDC) 32, which is connected to the continuous base 26 by an intermediate curved connecting portion 32a. The structure of the IDC unit 32 is well known in the prior art. Similarly, in FIG. 8, another type of surface mount connector is shown, which has a flat tab insertion space 3
6c is a female tab receptacle 36 that includes first and second branches 36a, 36b that are separated from each other to provide 6c. The branches 36a and 36b are continuous with the base 34, as is well shown in FIG.
The base 34 is I-shaped, and has a lateral base portion 34a,
34b and central base portion 34c. Branching portion 36a,
Each of the 36b is continuous with the central base portion 34c, and each of the lateral base portions 34a, 34b has two connecting tabs or carrier strips 18a, 18b.

FIGS. 10 to 12 show a modification of the surface mount connector as a connector pin, which is similar to the structure of the pin connector of FIG. Instead of the curved central branch 20f with the central base 20d shown in FIG. 3, the central branch 20f extends in a straight line downwards in the same plane as the contact pins 20 and the lower extension post 2
0f ′, which is housed in a through hole 38 formed in a conductor land or pad of the printed circuit board, as shown in FIG. The post or anchor pin projects downward from the flat fixed base. The solder pad 40 of the printed circuit board is provided with a central hole 38 as shown. The terminals or connectors are placed on the side of the paste coated solder pads and the anchor posts 20f are inserted into the holes or openings 38 to prevent the terminals from floating during the solder reflow. In most cases
As already mentioned, undesired floating is completely prevented as a result of the absorption of solder into the space S by capillary action.

In FIG. 13 there is shown a winding strip of surface mount connectors serially coupled for automatic mounting on the surface of a printed circuit board, generally designated by the numeral 44. The spool or reel 44 includes a rotatable support member 45 having a rotation axis 46. As shown, the surface mount connector 48 is oriented so that the orientation of the contacts 49 is substantially parallel to the axis of rotation 46 and the bases of the individual connectors are aligned on either a substantially common plane or a parallel plane. Determined. The frangible means, either as a connecting tab or a carrier strip, is sufficiently flexible so that it can be placed along an arc when the connector 48 is helically wrapped around the support member 45.

When wound on spool or reel 44, the radial size of the elongated contact pins is significantly smaller than that of the base of the connector and, therefore, as shown in FIG. Appropriate spacer elements are preferably inserted in the strips of the connector that are continuously spirally wound to maintain the child. Referring to FIG. 14, the contacts 49 are maintained in adjacent layers separated from each other by a distance that defines a helical connector receiving space having a radial dimension that is approximately equal to the radial dimension of the base of the connector. Examples of spacers that can be used for this are shown. A suitably sized spiral connector receiving space reduces interference between the bases of adjacent layers. The spacer shown includes a continuous flat strip of flexible material 50a and a wavy strip 50b secured to the material 50a.
The wavy strip material 50b has a peak-to-peak distance 50c along the length direction of the flat strip material 50a.
Which corresponds to the distance between the substantially continuous contacts 48, the peak-to-peak height 50d in the radial direction, which is normal to the length of the flat strip, is rotatable. When spirally wound on the support member 45, the difference between the radial size of the base and the radial size of the contact in the radial direction is substantially equal.

The spacer 50 holds the contactor on the reel. In use, the spacers are unwound to unwind portions of the continuous strip and feed the gripper placement device. FIG.
Spools or reels of the type shown in 3 are supplied to a feeder of the type described in the US patent application assigned to the assignee of the present application. The structure of the spacer 50 is not critical, and continuous strips of surface mount connectors can be spirally wound without the use of spacers or simply separated by continuous flat sheet members. However, the use of spacers maintains the desired orientation of the connector 48 and prevents the connecting tabs or carrier strips from breaking or cutting.

In FIGS. 15 and 16, the fuse holder 6 is used.
Another embodiment of the invention as 0 is shown. The fuse holder 60 has a base 62 similar to the base shown in FIGS. 8 and 9. Spring clips 60a, 60
b extends from the base in the normal direction and is continuous with the curved portions 64a and 64b as illustrated. Like other surface mount connectors, the base preferably has an aperture or opening S for absorbing solder by capillary action.
Some solder enters the space S ′ near the curved portions 64a and 64b.

Although the present invention has been described with reference to the preferred embodiments with reference to the accompanying drawings, those skilled in the art can easily make various modifications. Such modifications are also included in the scope of the present invention defined in the claims.

[0032]

As described above, according to the present invention, there is provided a surface mount electronic component connector which is free from the problems associated with the surface mount connector and has a simple structure and a low manufacturing cost. In addition, a surface mount electronic component connector that can be easily used with the surface mount automatic gripping and placing device,
There is an effect that it is possible to provide a surface-mounted electronic component connector that can be efficiently mounted on a printed circuit board while substantially eliminating wastes due to damage to the connector.

[Brief description of the drawings]

FIG. 1 is a perspective view of a surface mount connector in the form of a test point or male contact pin according to the present invention, cut from a strip of the connector and mounted on a printed circuit board.

FIG. 2 is a plan view of a blank for a serially connected surface mount connector of the type shown in FIG. 1, one connector shown in solid lines, to which the upper and lower connectors are shown in phantom. Indicated by.

FIG. 3 is a perspective view of another embodiment of a surface mount connector according to the present invention, in the form of contact pins, positioned on the connector at the lower end of the strip to grasp the connector after it has been cut off from the strip. The vacuum grasping nozzle that does this is also shown.

4 is a perspective view of the bottom of the connector of FIG. 3, showing the structure of the base and the manner in which the connectors are connected together by connecting tabs or carrier strips.

FIG. 5 is similar to FIG. 3, but shows another embodiment of a surface mount connector according to the present invention wherein adjacent connectors of the strip are connected to each other at a portion of the contact pins rather than at the base portion. .

FIG. 6 illustrates another embodiment of a surface mount connector according to the present invention, in which adjacent connectors are connected to each other by a double carrier strip to stabilize contact pins.

FIG. 7 is similar to FIGS. 3 and 5 and is an insulation displacement connector (I
Figure 3 shows a surface mount connector according to the invention in the shape of (DC).

FIG. 8 is similar to FIG. 7 and shows a female receptacle for surface mounting according to the present invention.

9 is a perspective view of the bottom of the connector of FIG. 8, showing details of the base and how adjacent connectors are coupled together.

FIG. 10 shows a variation of a connector similar to FIG. 3 that includes a downwardly extending post.

11 is a bottom perspective view of the connector of FIG.

FIG. 12 is a perspective view of a surface mount connector of the type shown in FIGS. 10 and 11 before being mounted on a printed circuit board having through holes for connector posts.

FIG. 13 is a winding strip of a connector of the type shown in FIG. 1, with the orientation of the connector spirally wound on a reel and a spigot or spacer member for keeping adjacent layers of the spiral winding apart. Indicates.

14 is a perspective view in section of a spacer member used in the winding strip shown in FIG.

FIG. 15 is a front elevation view of another embodiment of a surface mount connector according to the present invention in the shape of a fuse holder.

16 is a top plan view of a fuse holder of the type shown in FIG. 15, showing how the connectors are connected by strips and promoting capillarity when performing soldering on a printed circuit board. The hole formed in the base of the connector is shown.

FIG. 17 is a perspective view of a spool of surface mount pins according to the prior art, each pin being retained in a pocket carrier that is sequentially provided on a tape that is spirally wound on a reel.

[Explanation of symbols]

 10 connector 12 base 12a first base portion 12b second base portion 12c parallel member 12d protrusion 12e lateral member 12f side cutout 14 contact pin 14a first contact portion 14b second contact portion 14c bridge portion 14d space (gap) 16a, 16b Intermediate curved connection part 18 Carrier 19 Material plate 20 Contact pin 20a Upper contact member 20b Free end 20c Shoulder part 20d Branch part 20e Branch part 20f Branch part 22 Base 22a Base part 22b Base part 22c Lateral part 22d Central base part 22e Branch part 24a, 24b Connecting part 24c, 24d Bending part 24e Bending part 26, 34 Base S Opening (space)

Claims (27)

[Claims] 1. A surface mount connector for surface mounting on a generally flat conductor surface of a printed circuit board, the base defining a surface for a flat conductor surface of a printed circuit board to be connected. A contact having a base having a generally flat surface suitable for being connected and secured and at least one portion projecting from the base in a direction generally normal to the surface defined by the base. A conductor sheet, and the contactor, the base, and the at least one intermediate curved connection portion, the conductive sheet being substantially flat. A surface mount connector formed of a member. 2. The surface mount connector according to claim 1, wherein the contact is a contact pin. 3. The surface mount connector according to claim 1, wherein the contact is a female type electronic component receptacle. 4. The surface mount connector according to claim 1, wherein the contact is an electronic component insulation displacement connector. 5. The surface mount connector according to claim 1, wherein the contact is a fuse clip. 6. The base includes two base portions,
The contacts include two elongated, generally juxtaposed contacts, each of the contacts having a proximal end distal from the base, the distal ends being separated from each other by an integral curved bridge portion. Connected, and further has two intermediate curved connecting portions,
The surface mount connector of claim 1, wherein each of the intermediate curved connecting portions connects one of the adjacent ends to one of the base portions. 7. One base is a U-shaped member including a lateral portion and two parallel portions, and each of the parallel portions is
Connected at one end to the lateral portion and further having a free end, the other base portion is shaped and sized to substantially match and occupy a region between the free ends. 7. The surface mount connector according to claim 6, wherein the surface mount connector is provided. 8. One of the intermediate curved connections is connected to the lateral portion, and the other one of the intermediate curved connections is connected to the other base portion.
Surface mount connector described. 9. Each of the two bends is approximately 90 °.
7. The surface mount connector according to claim 6, wherein the surface mount connector is bent in a horizontal direction. 10. The base includes a plurality of base portions,
The contact is a contact pin distal from the base;
Equal to the number of base parts that are substantially flush with the contact pins,
The surface mount connector according to claim 1, further comprising a plurality of branches adjacent to the base, and a distant intermediate curved connecting portion connecting each branch portion with its corresponding base portion. 11. A base portion and three branch portions are provided, three intermediate curved connection portions are provided, and each of the intermediate curved connection portions connects a corresponding base and a branch portion. The surface mount connector according to claim 10. 12. One of the branch portions is a central branch portion that is substantially coextensive with the central contact pin, and two of the branch portions are formed on a side of the central branch portion, and the central branch portion is formed. 12. The surface mount connector according to claim 11, wherein the curved connecting portion of the above is bent at about 90 °, and the curved connecting portion of the side branch portion is bent at about 180 °. 13. Two base parts and two branch parts are provided, two intermediate curved connection parts are provided, and each of the intermediate curved connection parts connects the corresponding base and the branch part. The surface mount connector according to claim 10. 14. The surface mount connector according to claim 13, wherein each of the two intermediate curved connecting portions is bent by about 180 °. 15. The base is substantially rectangular and has a pair of opposite sides, the contact is located substantially in the center of the rectangular surface of the base, and one intermediate curved connecting portion is
Extending from one side of the base to the contact, the other intermediate curved connection includes a tab or collar extending from the other side of the base to a point of proximity to the contact and further wrapped around the contact, The surface mount connector according to claim 1, wherein the intermediate connecting portion stabilizes the position of the contact. 16. A post projecting from the base in a direction generally normal to the surface defined by the base and opposite the direction of the contacts, the post comprising: The surface mount connector according to claim 1, wherein when the connector is mounted on the printed circuit board, the connector is inserted into a through hole of the printed circuit board. 17. The base according to claim 1, further comprising opening means for sucking the solder by a capillary action when solder reflow is performed after the connector is arranged on the printed circuit board. Surface mount connector. 18. A connecting strip of a surface mount connector for automatic mounting on a surface of a printed circuit board, each connector having a surface defining base with respect to a flat conductive surface of a printed circuit board to be connected. Contactor having a base having a generally flat surface suitable for being connected and fixed together and at least a portion projecting from the base in a direction substantially normal to the surface defined by the base. And at least one intermediate curved connecting portion that integrally connects the contactor and the base, and the contactor, the base, and the at least one intermediate curved connecting portion are substantially flat conductor sheet members as a whole. Integrally formed with a frangible connecting means between any two adjacent connectors, so that the strips of connectors are advanced to the automatic mounting table, The connector at the end of the lip is cut off from the strip by cutting the frangible coupling means between the connector at the end and the immediately adjacent connector next to the strip. Strips of connectors to. 19. The connector strip of claim 18, wherein the derivable connection means comprises a connection tab integrally formed by the bases of two connecting connectors. 20. The connector strip of claim 18, wherein the derivable coupling means includes a coupling tab integrally formed by contacts of two coupling connectors. 21. A take-up connection strip of a surface mount connector for automated mounting on a surface of a printed circuit board, each connector being a flat conductor surface of the printed circuit board to which it is connected with a base defining a surface. A base having an overall flat surface suitable for being connected to and secured to,
A contact having at least a portion protruding from the base in a direction substantially normal to the surface defined by the base; and at least one intermediate curved connecting portion integrally connecting the contact and the base. The contact, the base, and the at least one intermediate curved connection are all formed from a substantially flat conductor sheet member, and a frangible connection is provided between two adjacent connectors, and a strip of connector is provided. Is provided with a rotatable support member that is spirally wound, the rotatable support member defining a rotation axis, and the connector extending such that the contacts are substantially parallel to the rotation axis. When the connector is wound in a spiral shape around the support member, the frangible connecting means is not damaged even if the connector is wound along an arc. Connector winding strip, characterized in that Ihodo is sufficiently flexible. 22. The base of the connector, when helically wound around the rotatable support member, has a preset radial dimension and a radius approximately equal to the preset dimension. Includes spacer means for retaining the contacts in adjacent layers spaced apart from each other to define a helical connector receiving space having a directional dimension, and thus the winding strip of the connector has a helical shape. 22. The connector winding strip according to claim 21, wherein the winding strip is inserted into the connector receiving space with minimal contact interference between the bases of adjacent layers. 23. The spacer means includes a continuous flat strip of flexible material and a corrugated strip material attached to the flat strip material, the corrugated strip material being the distance between successive contacts on the strip. Has a peak-to-peak distance along the length of the flat strip approximately corresponding to, and is spirally wound on the rotatable support member, the preset dimension and the radius of contact. 23. The take-up strip of a connector of claim 22 having a peak-to-peak height along the radial direction normal to the flat strip that is approximately equal to the difference in the directional dimension. . 24. A material plate for a surface mount connector, including punching from a flat sheet member of an electrically conductive member, the punching being performed on a surface to be connected of a printed circuit board in a common plane. A base suitable for fixing, a contact, and at least one intermediate connecting portion integrally connecting the contact to the base, wherein the at least one intermediate connecting portion is bent to form the surface mount connector. By
A material plate for a surface mount connector, wherein at least one portion of the contactor can be displaced to a position substantially normal to the surface. 25. A blank of a plurality of interlocking surface mount connectors, including stamping from an elongated strip formed from a flat sheet of electrically conductive material, the stamping along the strip. Including a plurality of blanks sequentially punched, connecting adjacent blanks to each other, including at least one friable tab between adjacent blanks,
Each material plate portion includes a base suitable for fixing to a connection surface of a printed circuit board, a contact, and at least one intermediate connecting portion integrally connecting the contact to the base, and the at least one By bending the intermediate connecting portion to form the surface mount connector, at least one portion of the contact is displaceable to a position approximately normal to the surface, and two adjacent surfaces The mounting connector is a material plate for a plurality of connected surface mounting connectors, wherein the mounting connectors can be cut off from each other by cutting the tabs connecting them. 26. A method of forming a surface mount connector, comprising: a base suitable for fixing on a surface to be connected of a printed circuit board on a common surface, a contact, and the contact integrated with the base. Forming a blank from a flat sheet member that is an electrical conductor to form at least one intermediate connecting portion to be connected, and the at least one intermediate connecting portion to form the surface mount connector. A step of displacing the at least one part of the contact to a position substantially normal to the surface by bending, thereby deforming the material plate. . 27. A surface-mount connector, comprising a base suitable for fixing, a contact, and at least one unit integrally connecting the contact to the base on the surface to which the printed circuit board is connected, on a common surface. Forming a blank from an electrically conductive flat sheet member to form two intermediate connectors, and bending the at least one intermediate connector to form the surface mount connector, Displacement of the at least one portion of the contactor to a position substantially normal to the surface to deform the material plate, the surface mount connector.