JPH07506691A - Connector with plate plug contacts - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Connector with plate plug contacts Background of the invention This invention has an electrically insulating housing and a small number of electrical conductors with a contact end. at least one contact member, said contact member it protruding from the base and having another contact member; Designed as a plug contact for forming contact with a point member, this plug contact At the point, the contact end has one end connected and two ends projecting from the base. It is made of elongated plate-like parts facing each other with a gap in between.

electrical contacts designed as plug contacts of the above type, with a contact member having a contact end; A power connector is known from No. υ5-A-4.881.905.

Plug contact members are usually made from hard, rigid electrical conductors, pressed and flattened. Manufactured by mechanical processing such as

Examples of plug contacts are also two or more, each having a semicircular cross section, for example. Devices made of the above number of hard members are known. These known plug connections Points have the common property of forming rigid entities.

Such hard plug contacts have a number of disadvantages, especially the size of the electronic components. Connectors with smaller dimensions continue to grow in line with the recent trend of shrinkage. It has been found that there is a disadvantage in producing a large amount of C duplex.

Plug contacts made from plate material, in contrast to plug contact members made from hard rigid bodies has the property of flexibility. The two plate-like parts move forward and backward relative to each other. They can also be displaced relative to each other. Plastic made from this plate material Contacts are used when the two contact ends do not match exactly, e.g. Self-adjusting in making contact with another contact member with a contact end designed as result in a function. In particular, a relatively large number of platforms, e.g. 80 or more, In the case of connectors with mating contacts, this self-adjusting feature This has a beneficial effect on minimizing the insertion force required for insertion. Furthermore, This self-adjusting feature improves reliability between the contact members attempting to join.

In the plug contact member known as υ5-A-4.881.905, between the two The elongated plate-like parts facing each other with a gap in between are connected to the base in a cantilever manner. Ru. In other words, both free ends of the plate member are not in physical contact with each other. stomach. When brought into contact with another contact member, i.e., a socket contact member, the plate-like member , deflect toward each other and create some mechanical strain in the contact members. Total membership and thickness of conversion To reduce distortion without affecting the contact member length and material constants, Therefore, the width of the plate-like portion must be increased. However, this does not apply to electronic engineering Dimensional shrinkage trend in the field of design, i.e. design of small pitch miniature connectors Go against the trend.

DE-A-1,540,643 and US-A-3,371,152 are Consists of elongated plate-like members that are adjacent to each other with a gap in between, and has connecting ends that are applied to wiring. A contact member is disclosed. However, these plate-like members are are connected via an intermediate strip present. For miniaturization purposes, this The connecting ends of these are connected to the housing contact member due to the aforementioned intermediate strip. self-adjustment function is insufficient.

Summary of the invention Accordingly, the invention provides one or more end contacts designed for plug contacts. The purpose is to provide a connector that has contacts of Ru.

This objective is achieved by physically contacting the free ends of the plate-like members of the present invention. will be accomplished.

In the contact member designed according to the present invention, one plate member is adjacent to the other plate member. It functions to support the load of plate-like members that meet each other. In this way, the design of this invention In this case, each plate member is a contact member known from US-A-4,881,905. Similar to a double-ended beam, as opposed to a cantilevered beam. Contact with another contact member When assuming that the length, width, thickness, and material constants are the same, the plate member of this invention The amount of deflection and mechanical strain at the It is noteworthy that it is half the size of the previous year.

Therefore, assuming that other variables are the same, the plate-shaped portion of the contact member of this invention is , may have a reduced width compared to prior art contact members. Socket to be connected or female contact member to accommodate lateral movement of the plug or male contact member. may be narrow. Thus, a plug contact designed according to the invention Components are rigid when manufacturing small connectors with small pitches, especially so-called signal connectors. It has a certain degree of adaptability.

According to the test results, the plug contact of the present invention, compared to a rigid plug contact member, A significant reduction in wear and tear occurs when the socket contact member is repeatedly connected and disconnected. Rukoto has been shown.

To explain this point, the present invention eliminates unacceptable wear and tear on the conductor coating layer of socket contacts. For contact members, this occurs only after approximately 2000/3000 intermittent cycles. On the other hand, in the case of hard rigid plug contacts, this problem already occurs after 200/300 times. was.

On the one hand, the reduction in wear and tear on the contact surfaces of the socket contact and the plug contact of the present invention is achieved by: It is already known that the two plate-like members of the plug contact of the present invention are compressible in the direction of each other. This can be explained by the above properties. As a result, the free ends of the plug contacts are After introduction into the plug contact, the contact force or normal force will cause further introduction into the plug contact. the force acting on the contact surface during the small. In the latter case, the normal force between the contact surfaces of the socket and plug contacts is This is explained because the contact force remains equal to the contact force after introduction of the contact end of the connected plug contact. can. In the latter case, the plug contacts may be modified as compared to the compressible plug contacts of this invention. During the further introduction into the socket contact over a long distance, the contact surface is It is clear that a linear force acts, which of course increases wear on the contact surface. Ru.

The contact member of this invention makes contact as in the case of a plug contact made of a rigid material. It is made from a plate-like material that does not require pressing or flattening of the contact surface. , the contact surfaces of the plug contacts of the invention are more compact than contact members known from the prior art. On the other hand, this point also has a positive effect on the wear of the contact layer of the socket contact. bring.

Physical contact between the free ends of the plate-like members can be achieved using an intermediate member. However, in a preferred embodiment of the invention, the plate-like members are touch each other.

In this embodiment, when the plug contact and the socket contact are joined, the plate-like member Since the respective machined free ends of the socket do not engage the contact surface of the socket contact, Damage to the socket contacts is avoided as much as possible. Mutual contact between two plate members Possible disturbances in the accuracy of the surface of the plate-like member due to mechanical effects resulting in It does not adversely affect the abrasion of the contact surface.

However, if a connector with rigid plug contacts is used for special equipment, If a holder is required, the plates between the fixed end and the free end may be This is made possible by a further embodiment of the invention with the above-mentioned ridges. This ratio By relatively simple mechanical processing, the stiffness of the plug contacts can be advantageously increased to the desired value. It is possible to make it big.

In an advantageous embodiment of the connector according to the invention, the connector has one or more plug contacts. is a substantially hollow rectangular section in which two plate-like members are flat, have flat contact surfaces, and are substantially hollow. form the boundary of the gap. This plug contact has a flat surface with a predetermined surface accuracy. without damaging the contact surface of the socket contact made from a plate-like member. It can be manufactured and the desired elasticity can be achieved by properly sizing. .

Plug contacts of this invention that can absorb dimensional differences between connectors to be joined In one embodiment of the connector having a a gap boundary having a substantially hollow cylindrical cross-section with a contact surface curved in the direction of form a world. The radius of curvature of the two plate members may be relatively large, but , the surface accuracy of the two plate-like members is not affected at all by the curved structure. , almost unaffected.

In order to simplify the introduction of the plug contact into the socket contact, a further embodiment is provided. In this case, both free ends of the plate-like member have a conical or prismatic taper, for example. designed to form a

a housing comprising one or more channels for accommodating contact members; In the case of a connector having a It consists of a flat plate-like member with means for retention within the channel. this eye Suitable means may be suitable for By acting on the wall above the wall and deforming (biting) the surface of the wall, the contact member is A restraining hook that provides the necessary force to hold it within the associated channel.

In a preferred embodiment of the connector of the invention, particularly suitable for miniaturization purposes, The retaining means comprises at least one lip-like member upright relative to the base. the lip-like member is connected to the flat base in a flexible manner. The end of the housing stands up against the base and the contact member is assembled. and a free end which acts on the wall of the associated channel.

When the connector is in a state where contact has not yet been completed, the elasticity of the lip-like member Thus, relatively weak forces act on the walls of the associated channels. however, When the contact members complete contact, the base is closed to the channel by the lip-shaped member. The opposite wall of the connector is pressed by an opposing force, and as a result of this force, the connector Appropriate holding force is provided towards the input direction. The lip-shaped member is attached to the channel wall. This retaining member does not cause substantial mechanical damage (biting). It is particularly suitable for use in housings with relatively thin walls.

Further of the connector of this invention for connecting the plug contacts of this invention with a wire. In still other embodiments, it can be used as an insulated-displacement contact or as a soldered end. It can be used as a terminal pin for termination or as a clamp in the opening of the substrate (push it in tightly). An end section is provided which is optionally designed as a receiving member for the attachment.

Of course, as an alternative to the wiring terminal, the plug contact itself can be used as a plug contact. or with a further contact end designed as, for example, a socket contact. Good too.

Prevents undesired rotation of the contact member within the channel of the housing. In a further embodiment of the connector of the present invention, /1 the fixed ends of the two plate-like members have a channel with a substantially rectangular cross-section; The part and the base adjacent thereto form a substantially υ-shaped cross-section, which is similar to the cross-section of the channel. The size and the υ-shaped cross section match each other.

In particular, soldering is particularly important for contact members with terminal parts for mounting. The hollow plug contact further has the advantage that the gap between the two plate members is It has the advantage of functioning as a storage container. This will reduce the risk of contacting external surfaces. risk, i.e., if the two plate members become contaminated by flowing nozzle or if the coating Significantly reduces the risk of being exposed to This generally means that the flowing node is In contrast to the rigid contact members known from the prior art, which flow easily along the outer surface It is true. Solder flow results in a corrosive effect on the outer surface of the plug contacts. , in the case of rigid contacts, which causes an additional cleaning treatment of the plug contacts. It becomes necessary. This clearly has a negative impact on the price of the connector. Ru.

Compared to rigid plug contacts of similar size, the plug contacts of this invention The surface of the plate-like part is relatively large (thickness), so it is better for heat dissipation, and therefore The plug contact of the present invention handles a larger zero current than the rigid plug contact described above. Is possible. Because of its high heat dissipation capacity, the plug contacts of this invention are particularly Soldering is also suitable for devices.

Since a relatively thin board material can be used, multiple panels placed adjacent to each other on both edges can be used. The capacitive coupling between the number of plug contacts (c*pxcilive coupling) is , less rigid than e.g. square or rectangular plug contacts. of any pitch The small mutual capacitance coupling between contact members makes it possible to handle high frequency signals. do. In light of the modern tendency to rapidly process signals, e.g. Speaking of which, this contact point is advantageous.

In the contact member of the present invention, both surfaces are arranged facing each other by, for example, bending. , this part is punched once from the sheet of electrical conductor away from the direction of punching. The whole can be manufactured advantageously by machining. This point is placed on both edges of the two plate-like members. All the protrusions extending in the punching direction protrude into the gap between the two plate-like members. Both surfaces of the plank facing the outside remain intact and are protected from this outbreak. It has the advantage of forming contact with another connector for lighting purposes. This point Good impact on wear, contact reliability, and contact resistance when making contact with another connector It is clear that it has an impact.

The invention also provides mounting to electrical connectors and/or printed circuit boards. It also relates to the above-mentioned contact member used in an electrical connector.

The invention will be described in detail with reference to some preferred embodiments below.

Brief description of the drawing Figure 1.2.3 shows various preferences of the end contact of the invention, designed as a plug contact. A preferred embodiment is diagrammatically shown in a perspective view.

FIG. 4 shows the inventive connector in a position where contact has been made with yet another connector. 1 shows a diagrammatic cross-sectional view of a connector with lug contacts; FIG.

Figure 5.6.7 is a diagrammatic perspective view of various embodiments of the terminal contacts for plugs of the invention. Indicated by

FIG. 8 shows various implementations of alternative terminal contacts for combination with the plug contacts of the invention. An example is shown diagrammatically in perspective view.

Figure 9 shows a system of electrical conductors in combination with a terminal or one or more contacts shown in Figures 5-8. FIG.

Detailed description of examples FIG. 1 shows a part of the contact member of the present invention, in which a base l in the form of a flat plate is shown. having two elongated flat plate members 2.3 facing each other at one end thereof. These plate-like members extend by their ends 4, 5, respectively, from the base l. is connected in such a manner that it is fixed to the . The free ends 6, 7 of the two plate-like members 2.3 are arranged so that they are in contact with each other. It is designed to have a prismatic taper toward the center.

Between the two plate-like members 2.3 there is a hollow gap 8 of substantially rectangular cross-section.

FIG. 2 shows a plug connection according to the invention, which is composed of a plate member 9.10 as in FIG. 1. The point indicates the plate-like member 9. lO forms the boundary of the curved surface as shown in the enlarged cross-sectional view. to be accomplished. The two curved plate-like members 9.10 have ends 11. or by 12, are connected in a fixed manner to the base l, and their free ends 13, 14 are each designed with a conical taper for contact. . As is clear from the enlarged cross-sectional view, the curved plate member 9. lO is essentially an elliptical cylinder. The boundary of the hollow space 15 is formed.

Instead of the hollow cylindrical hollow gap 15 shown, two plate-shaped members 9.10 are used. Of course, other suitable cross-sections can be formed, for example circular, saddle-shaped boundaries.

Two plate members 6, 7 or 9. lO has the properties of a certain flexible spring, respectively. as a result, they move toward and away from each other in one direction. and can move relative to each other. As a result, the plug contacts The positions of the two terminal contacts do not match each other, or the center lines of the two contact members They may be at an angle to each other and are actually connected to the connector housing and/or contacts. Even if dimensional errors may occur between point members, when contacting another contact point, It has a self-adjusting effect. The flexible self-adjusting plastic of this invention The insertion force to create contact with a lug contact is comparable to that of a hard rigid plug contact. smaller than the case of . It is advantageous to have more than this set of contact members.

A plug contact made of a flat plate-like member 2.3 is replaced by a curved plate-like member, for example 9. lO It has greater flexibility than plug contacts made from. Apart from the shape of the plate member , the flexibility of the plug contact of the present invention is such that, as shown in FIG. influence by providing on both sides a bulge 16,17 in the direction of the gap 8. You may give.

In order to secure the plug contacts in the housing channel, in the illustrated embodiment: The base l has a holding means, for example, a holding means that protrudes from the surface of the base l and is formed outside the base l. The holding means 18 is provided in the form of a lip. This lip-shaped holding means 18 is fixed by the end 19 adjacent to the plug contact in this case and has a flexible state. , and the free end 20 of the retaining means 18 is connected to the base 1 with a terminal part 21 . The terminal portions stand up against the base l so as to be adjacent to each other and are connected to the base l. 21 is shown partially cut away in FIGS. 1-3.

FIG. 4 shows a connector 22 including a plurality of contact members 23 having plug contacts of FIG. , a plurality of contact members with contact ends 26 designed as sockets or female contacts Figure 2 shows a cross-sectional view of the connector 24 in position to form contact with another connector 24 comprising a connector 24; figure In the embodiment shown, the contact member 23 has a soldered terminal end in the form of a peripheral end 27. and the end 27 is attached to a printed circuit board, for example by soldering. It is housed in the opening 28 of the base plate 29 in order to connect with the wiring of the base plate 29 . connections The contact member 25 of the connector 24 is also mounted within the opening 32 of the printed circuit board 31. Soldering for connection by soldering takes the form of a peripheral end 3o and is equipped with a terminal part. It is growing.

The contact member 23 is supported by its base l and both ends 4.5 of the two plate members 2.3. the ends 4.5 of the base extend into the channel 33 of the connector 22; Together with the associated ends they form a U-shaped boundary in cross-section. Cross section of this channel 33 In the embodiment of FIG. 2, the dimensions are such that rotation of the plug contacts is prevented as much as possible. , the U-shape formed by the base 1 and both ends 4.5 or 11.12, respectively. Match the dimensions of the shaped end. The plug contacts themselves are connected to the plastic housing of the connector 24. A wall 34 of the plastic connector housing is used to accommodate a portion 37 of the housing. ．． 35 and the bottom 36, and within said portion 37. A channel 38 is formed to accommodate the socket contact end 26.

In the illustrated position where the plug contact and socket contact 26 of this invention join, The end 4.5 at which the contact surface 39 of the socket contact 26 is connected in a fixed manner to the base l or 11.12 in the vicinity of each of the plug contact plate members 2.3 or 9. It is clearly observed that contact is formed with IO.

During mating of connectors 22, 24, socket contacts 26 are inserted into rigid plug contacts. It is opened by the free end of a relatively hard plug contact, which is likened to a plug. two connections While further joining the kuta, they can be moved in the direction of each other and On the other hand, the force normal to the contact surfaces of the known hard plug contacts is The two plate-like members 2.3 or Or 9. As a result of the flexible action of lO, a rigid plastic with a uniform cross-section A force in the normal direction, which is weaker than in the case of a contact point, is applied to the outer surface of the plate member 2.3; Acts on the contact surface. This reduction in normal force associated with the plug contacts of this invention is associated with Contributes to reducing wear and tear between contact surfaces. As a result, the plug contacts of this invention If the contact surface is difficult to accept compared to the prior art hard plug contacts A number of intermittent cycles can be performed before wear occurs. Test results According to It was found to be 10 times more expensive than

The plug contacts shown in Figures 1-3 may be soldered, for example, as shown in Figures 5a-e. or a terminal end 21 in the form of a pin 50-54 for connection; 53,54 are suitable for surface mount technology and are also suitable for surface mount technology, as shown in Figures 5a-c. , in the form of an insulating-displacement contact 55, 56, 57, or alternatively as shown in Figures 7a-c. It can also be used with push-fit contacts to clamp within an opening in the substrate. It takes the form of a distal end 58,59,60 suitable for.

In addition to the terminal part for connecting electrical wiring, the plug contacts of this invention are of course , for example, another plug connected to the base 1 as shown in Figures 8a-c, respectively. contact, or another contact end designed as a socket contact 61, or e.g. Designed as a contact finger 62 for forming contact with the contact surface at the edge of the substrate. and another end or contact surfaces on both sides of the printed circuit board. It comprises a contact end 63 with two contact fingers arranged at a certain distance from each other. can be done.

9a-c show the plug connection of FIG. 1 viewed in the direction towards the edge of the flat plate member 2.3. It shows various combinations of contact members with points, for example 0.1 Die-cut from a sheet 65 of electrical conductor having a thickness of 51 m and then folded It was manufactured using

9a shows a plug contact with a soldered peripheral end 50, and FIG. 9b shows a socket 9c shows a plug contact with contacts 61 and FIG. 9c has insulation displacement contacts 55. The plug contacts are shown. The plug contact shown in Figure 9b is located at the fixed end 4.5 of the plate-like member. The ridge 40 has a proximal ridge 40 which is similar to the ridge 16 shown in FIG. 17, it serves to increase the hardness of the plug contacts.

The contact surface of the plug contact is not affected by the ridge 40.

This invention is not limited to the illustrated embodiments, but to the extent that it does not depart from the spirit of the invention. It is clear that modifications and additions obvious to those skilled in the art can be made. Ru. The connector of this invention has contact ends that are never designed as plug contacts. It is not limited only to contact members, but also includes plug contacts, e.g. socket contacts. Other contact points such as points may be included.

Claims (13)

[Claims] 1. Consists of a housing made of electrically insulating material that protrudes from the base and comes into contact with another contact member. at least one electrical conductor with a contact end designed as a plug contact for Equipped with one contact member, The contact end includes two elongated plate-shaped parts facing apart from each other and projecting from the base. one end of the plate-like member is fixedly connected to the base, and the front An electrical connector in which the free ends of the plate-like member are in physical contact. 2. Claim 1, wherein the two plate-like members are in contact with each other at their free ends. Electrical connectors included. 3. The two plate-like members are arranged between their fixed ends and free ends facing each other. 5. The electrical connector of claim 1, further comprising one or more ridges. 4. said two plate-like members are flat, have flat contact surfaces, and are substantially hollow rectangular; 2. The electrical connector of claim 1, wherein the electrical connector defines a gap having a shaped cross section. 5. The two plate-like members have contact surfaces curved in a direction transverse to the longitudinal direction thereof. and forming the boundary of a gap having a substantially hollow rectangular cross section. electrical connector. 6. Both free ends of the two plate-like members are approximately conical or prismatic tapes. 2. The electrical connector of claim 1, wherein the electrical connector is designed to have a 7. The base is flat and includes a contact member for retaining the contact member within a channel of the housing. The electrical connector according to claim 1, comprising a flat plate. 8. The retaining means includes at least one lip-like structure that stands up against a flat base. the lip-like member being fixedly attached to the base in a flexible manner. the free end has a connected end and a free end that stands up with respect to the base; an electrical connector according to claim 7 acting on the wall of the associated channel of the housing; Kuta. 9. the housing has a substantially rectangular cross section for accommodating a contact member; a channel between both fixed ends of the two plate members and the border of the substantially U-shaped cross section; The adjacent bases forming a field and the cross-sectional dimensions of the channel and the U-shaped cross section are Matching claims for retaining the contact member to prevent rotation of the contact member Electrical connectors according to scope 1. 10. The contact member includes an end portion protruding from the base for connecting a wire. E, the terminal portion may be an insulation-displacement contact, a soldering end portion, a wire connection pin, or optionally designed to accommodate the clamping member within the substrate closure. The electrical connector according to claim 1. 11. the contact member protrudes from the base for making contact with a further connector; a further contact end, said further contact member being a plug contact or a socket contact. An electrical connector according to claim 1, optionally designed as: 12. From the punching direction so that both surfaces of the two plate-shaped members face each other. spaced apart and separated from the sheet of electrical conductor by a single punching process. A contact member according to claim 1, which is manufactured in its entirety. 13. Electrical Connectors and/or Electrical Connectors Mounted on Printed Circuit Boards 2. The contact member according to claim 1, which is used for a contact member.