JPH0760718B2 - Electrical connector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention may generally be of the jack-to-jack or barrel connector type with an inner conductor, an outer conductor, and a separate insulating sleeve. It relates to an electrical connector. More specifically, the present invention relates to an improved connector of this general type which is mechanically tight. The improved connector of the present invention provides a means for compensating for connector component shrinkage so that a mechanically tight seal can be maintained over a wide temperature range.

2. Background Description and Objects of the Invention It is an object of the present invention to provide an improved coaxial type connector characterized in that the connector comprises an improved mechanically tight seal.

Another object of the present invention is to provide an improved coaxial connector in which the inner and outer conductor portions of the connector remain rigidly mechanically interconnected.

Yet another object of the present invention is to provide an improved assembly method which can be implemented very easily in a small number of steps.

Another object of the present invention is an improved coaxial electrical connector,
And a method for manufacturing a connector capable of forming such a connector without deteriorating the electrical characteristics related to the wires interconnected by the connector.

Yet another object of the present invention is an improved coaxial connector design that allows the inner and outer conductors to be physically tightly positioned relative to one another and remains in position during use over a wide temperature range. It is to provide a connector.

Yet another object of the present invention is to provide an improved coaxial electrical connector which can be constructed symmetrically or asymmetrically.

SUMMARY OF THE INVENTION To achieve the above and other objectives, an electrical connector that can be constructed based on the two separate principles described herein is described below. According to the first aspect of the present invention, the electrical connector is configured so that the outer conductor body, the inner conductor that can be fitted in the body, and the body and the inner conductor can be coupled to each other. Made of insulating sleeve and. In the embodiments disclosed herein, the connector is of a type that allows the inner conductor to be attached to a circuit or circuit board. According to a preferred method of assembling the connector, the sleeve is attached to the body prior to incorporating the inner conductor into the sleeve. The body is provided with an annular ridge for tightly receiving the sleeve. Next, the outer conductor and the inner conductor are sealed as a single body, and preferably heated at a temperature higher than the maximum operating temperature according to the rated specifications of the connector. For some applications, it is possible to engage the parts without the need for heat to engage the parts. When heated, the sleeve, which preferably consists of Teflon, expands to fill all voids,
It has cold flow properties that allow it to retain its shape even after the temperature has dropped. According to this aspect of the invention, the annular ridge portion described above is provided with a length corresponding to the diameter of the sleeve. If this length is L and the diameter is D, then the equation L = Dtan θ holds. This equation, obtained by the present invention, provides the relationship to maintain proper sealing contact for a mechanically tight fit. In the above equation, the angle θ indicates the edge angle of the ridge portion N in the preferred embodiment, where θ = 45 °, and from the above equation that the length of the ridge portion is It is characterized in that the structure is selected so as to be substantially equal to the diameter of the sleeve corresponding to the inner diameter of the outer conductor body.

In accordance with another aspect of the invention, referred to herein as the asymmetric type, there is provided an electrical connector comprising an outer conductor body having a central bore within which an inwardly directed annular ridge extending into the bore. Is formed. The connector also includes a sleeve formed within the hole of the outer conductor and adapted to substantially engage the hole, the sleeve including means for forming an annular recess interlocking with the annular ridge. I have it. The inner conductor is adapted to fit within the sleeve. The annular ridge portion has beveled end walls on both sides thereof that transition between a hole in the outer conductor body and the annular ridge. Similarly, the annular recess has on each side thereof a beveled end wall defining a recess that transitions between the outer diameter of the sleeve and the inner diameter of the sleeve in the annular recess.

The beveled end walls in both the ridge and the recess are in contact with each other. A gap is provided between the insulating sleeve and the outer conductor to allow thermal expansion between these components. However, the actual contact between the sleeve and the outer conductor takes place only on the beveled surfaces which are in close mutual contact over the temperature range, but in mutual sliding contact.
Opposing beveled end walls, respectively on the body and sleeve, are conical surfaces, each having a common apex (not necessarily) located on the normal connector axis. It is above. Each of the annular ridge of the connector body and the annular recess of the sleeve has a length that extends circumferentially about the respective body and sleeve and gradually changes.

BRIEF DESCRIPTION OF THE DRAWINGS Many other objects, features and advantages of the present invention will become apparent upon reading the following detailed description in conjunction with the accompanying drawings.

1 is a cross-sectional view of a connector constructed in accordance with an aspect of the present invention, FIG. 2 is a somewhat enlarged partial view of a portion of the illustrated connector of FIG. 1, and FIG. 3 is a connector at different temperatures. 4 and 5 which show the dimensional relationships of the parts of FIG. 4 show relative movement between the beveled end wall of the connector body and the sleeve during temperature changes. FIG. 6 is a partial schematic view for showing, in particular, the outer connector body, a sectional view of a second embodiment of the invention in which the connector is referred to as an asymmetrical connector, FIG. FIG. 8 is a side view showing the structure of a sleeve used with a conductor body, FIG. 8 is a cross-sectional view showing the outer conductor body with the sleeve in a position assembled according to the configurations of FIGS. 6 and 7, and FIG. 6 to 9 show the notch of the connector shown in FIG. FIG. 10 is a cross-sectional view of an outer conductor body according to another embodiment of the present invention in which the apex of the cone is displaced from the center line of the body, and FIG. 11 is an outside view of yet another embodiment of the present invention. FIG. 12 is a cross-sectional view of the conductor body, and FIG. 12 is a cross-sectional view of the outer conductor body for yet another embodiment of the present invention in which one of the cones is a plan view.

DETAILED DESCRIPTION FIG. 1 is a cross-sectional view of a connector embodying the principles of the present invention. The connector illustrated in FIG. 1 can be used to connect to a printed circuit board, although other applications are possible. The concept of the present invention can be used to make any type of connector that should support the inner and outer conductors relatively.

The connector shown in FIG. 1 includes a connector body 10 forming an outer conductor, an inner conductor 20, and a Teflon sleeve 30. Teflon has excellent cold flow properties that allow it to be heated to match the shape of the inner and outer conductors. FIG. 1 shows the Teflon sleeve in its final shape.

Briefly, according to the method of manufacture, the Teflon sleeve 30 is attached to the body 10 so that it can extend along the length of the hole in the body. The length of the hole can be approximately equal to the length of the Teflon sleeve, or it can be equal to the length of the inner conductor. The next step is to assemble the inner conductor into the Teflon sleeve while maintaining the Teflon sleeve in place within the outer conductor. The assembly process is performed without the use of heat.

The next step in the manufacturing process is to plug the end of the connector and apply heat. A stopper made of stainless steel or other metal can be used so that the entire Teflon can be surrounded by metal. The connector is heated to the maximum temperature at which it is desired to exceed the rated specifications of the connector. A suitable heating temperature is about 165 ° C. Cold flow is more rapid at this temperature. Teflon is a good insulator and has good cold flow properties, allowing it to expand when heat is applied.

When the Teflon sleeve 30 is first inserted, since the ridge portion 12 is present, a small gap is formed between the sleeve and the inner hole of the outer conductor 10 at a place other than the place where the ridge portion is formed. However, when heated, the Teflon expands, fills this void, and is substantially locked to each other about the inwardly facing annular ridge (ring) 12. FIG. 1 shows a Teflon which is heated and expanded to substantially fill the inner hole of the outer conductor 10 and conform to the contour of that hole. Also, the inner conductor 20
As for, Teflon expands around the inner conductor,
In particular, it expands into the annular passage provided in the inner conductor. In this way, the Teflon expands towards the outer conductor and interlocks with the ridge 12 and also expands inwardly to interlock with the inner conductor, leaving a general seal between the inner and outer conductors. Form a mutual lock.

2 and 3 are enlarged partial views of a part of the connector shown in FIG. These sub-figures are intended to illustrate the principles of the present invention in the context of certain dimensional parameters listed.

In accordance with the principles of the present invention, the sleeve and outer conductor are maintained in contact, even if contraction occurs, and this contact is maintained sufficiently to provide a mechanically tight seal. A relationship between the average diameter of the sleeve and the length of the ridge is formed.

Thus, with respect to FIGS. 2-3, in particular, the outer conductor
A partial view showing the connector area in the annular ridge 12 of 10 is shown. A ridge portion 12 is provided between FIG. 2 and FIG.
Key dimensions are shown, including the length L and the diameter D which is the average diameter of the sleeve 30. Also, in these drawings, the ridge portion 12
The angle θ, which is the angle of the beveled end 14, is shown.

In particular, FIG. 3 is an enlarged partial view of the end portion of the annular ridge portion 12, showing the change of the sleeve 30 with respect to the outer conductor 10 with temperature change. In FIG. 3, the outer conductor 10 is disregarded as stationary for the following description. For sleeve 30, the position at temperature T ₂ is shown by the solid line,
The position at T ₁ is indicated by the dashed line.

For materials commonly used for high frequency electrical connectors,
The outer conductor 10, which is the outer member, is typically made of metal, while the sleeve 30, which is the inner member, is typically a plastic insulator. Most materials have a much lower coefficient of expansion than plastics, and thus the geometry of the description and drawings below show that special case, but the idea of the invention is that the outer member is the inner member. It is also applicable to other combinations, including materials with higher expansion coefficients.

The components of the connector formed in accordance with the present invention maintain mechanical contact and tight fit over a wide temperature range. As shown in FIG. 5, the connector includes a connector body having an outer conductor having an axially symmetrical hole having an inner ridge portion having an axial length L and a diameter D.
The inner ridge portion is provided at each end with a beveled angle of θ measured with respect to a plane perpendicular to the axis of the hole. As shown in FIG. 4, in the hole, a connector insulator is positioned that is complementary to the inner ridge of the connector body and has grooves at each end that are beveled at an angle θ. When the connector is assembled, the insulator is positioned within the hole in the connector body and the inner ridge of the connector body mates with the groove in the insulator. In accordance with the principles of the present invention, the inner ridge and groove are formed such that L / D = θ. Subsequent analysis demonstrates that when this relationship is maintained, the connector body and connector insulator remain in contact along the beveled ends of the inner ridge and groove. In the following description, it is assumed that one works with an isotropic material.

As for the insulator part 30 shown in FIG. 4, as the temperature changes from T ₁ to T ₂ , the point x on the beveled end of the groove becomes L ₁ due to the expansion of the part 30. , D ₁ to the point defined by L ₂ , D ₂ from the point defined by D ₁ , D ₁ , the radial change in the position of point x is represented by the following equation.

ΔD = D ₁ · a · ΔT (6) Here, D ₁ = diameter of component 30 at point x a = expansion rate of component 30 ΔT = temperature change = T ₂ −T ₁ Similarly, the position of point x is the axis. The degree of change ΔL in the direction is expressed by the following equation.

ΔL = L ₁ · a · ΔT (7) where L ₁ = the line drawn through the point x at the length T ₁ of the inner ridge at the point x and the point x at the point T _{2 with} respect to the perpendicular line It is inclined by an angle θ. By the definition of trigonometric function, it becomes as follows.

From equation (8), θ that defines the line along which the point x moves is
Only when tanφ = L / D, the angle is equal to the line-defining angle φ indicating the groove with bevel. This means that the two lines coincide and the point x moves towards the beveled end face during thermal expansion and contraction.

A similar analysis is valid for the connector body part 10 shown in FIG. As the temperature changes from T ₁ to T ₂ , the line x ′ on the beveled end of the inner ridge is the point defined by L ₁ ′ and D ₁ ′ due to the expansion of part 10. From
The degree ΔD ′ of moving the position of the point x ′ in the radial direction by moving to the point defined by L ₂ ′ and D ₂ ′ is given by the following equation.

ΔD ′ = D ₁ ′ · b · ΔT (9) Here, D ′ = diameter of the part 10 at the point x ′ b = expansion rate of the part 10 Similarly, the degree ΔL at which the position of the point x ′ changes in the axial direction. ′ Is expressed by the following equation.

ΔL ′ = L ₁ ′ · b · ΔT (10) where L ₁ ′ = the length of the groove at point x ′ The line drawn through point x ′ at T ₁ and point x ′ at T ₂ is It is inclined at an angle θ ′ with respect to the perpendicular. By the trigonometry, it becomes like the following formula.

From equation (11), θ'defines the line along which the point x moves.
It can be seen that is equal to the angle φ of the line showing the beveled ridge portion only when tan = φ = L / D. This means that the two lines are coincident and that during thermal expansion and contraction the point x'moves towards the beveled end face. D ₁ = D ₁ '
And when the connector body part 10 and the connector insulator part 30 are assembled together such that L ₁ = L ₁ ′, both parts 10 and 30 are defined by the angle φ during thermal expansion and contraction. Move in the direction of the marked line. The parts remain in contact along the beveled ends of the ridge and groove, even when they slide against each other due to differential expansion. Also in this case,
The above description assumes that isotropic materials are used.

The above description can be interpreted as follows. L / D
= Tan φ, when a part is constructed, the line drawn through the beveled end of the ridge and the beveled end of the groove is the common point P on the axis of the part and It intersects at the midpoint between the ridge and the groove. If we consider point P to be the expansion center for each part, thermal expansion will cause any point within the part to move radially with respect to the expansion center. The points on the beveled end of the ridge and groove move radially towards the beveled end during temperature changes, thereby stopping on the same radial line. This applies to both parts made of isotropic material, regardless of the difference in expansion coefficient. An important result is that both parts remain in contact at the beveled ends of the inner ridge and groove and, as shown in FIG. 3, interact with each other on these angled surfaces during temperature changes. It just slides on. Thus, these parts will remain in contact on these angled surfaces even if they do not remain in contact on their non-angular portions due to differential expansion. This allows the connector to maintain mechanical contact and tight fit between the components over the temperature range regardless of differences in expansion rates.

Next, the asymmetrical form of the present invention shown in FIGS. 6 to 9 will be described. 6 and 7 show the body and sleeve. FIG. 8 shows the members in a mutually locked condition. FIG. 9 is a cross-sectional perspective view showing the connector with inner conductors. This particular connector design is
It is called an asymmetrical shape because the beveled end wall that defines the ridge and the recess is formed by the truncated conical surface of the pyramid. On the other hand, the beveled end wall surface of the embodiment shown in FIGS. 1 to 5 is formed by a frustoconical surface of a right circular cone. In fact, yet another asymmetrical configuration, in which the frustoconical surface is a right circular cone, is shown in FIG. It should be noted that in all such embodiments the opposing conical surfaces (as illustrated by the components of that surface) are orthogonal at a single common vertex. In other words, the frusto-conical surface lies on a cone with a common apex.

The connector shown in FIGS. 6 to 9 includes a connector body 50 forming an outer conductor, an inner conductor 60, and a Teflon sleeve 70. Teflon has excellent cold flow properties, which allows the sleeve to be heated to conform to the shape of the inner and outer conductors. FIG. 8 illustrates the Teflon sleeve in its final position interlocked within the outer conductor. Initially, the Teflon sleeve can be made smaller than the dimensions shown and then heated. In this regard, the outer conductor and sleeve are circumferentially aligned with each other due to the nature of the asymmetrical structure shown in FIGS. 6-9, resulting in substantially only one proper position. Thus, a recess of suitable length interlocks with a ridge of suitable length. Each part can be marked for the purpose of realizing this relative alignment in the circumferential direction.

Briefly, according to one assembly method, the Teflon sleeve 70 is assembled to the body 50 so that the sleeve extends along the length of the body hole. The connector is then heated to a maximum temperature above specifications for the connector. A suitable heating temperature is about 160 ° C.
Cold flow is faster than at this temperature. Teflon is a good insulator, has excellent flow properties,
Allows expansion of the Teflon when heat is applied.

Due to the presence of the ridge portion 52, when the Teflon sleeve 70 is first inserted, a small gap is formed between the sleeve and the inner hole of the outer conductor 50 at a position other than the position where the ridge portion is formed. . However, upon heating, the Teflon expands and fills this void and is substantially interlocked around the outwardly facing annular ridge 52, as shown in FIG. FIG. 8 shows a Teflon that has been heated and expanded to fill and conform to a portion of the inner bore of the outer conductor 50. The voids are shown in FIG. As shown in FIG. 8, the contact surface is on a beveled wall, which is where mechanically intimate contact is formed. Voids in other areas allow expansion and contraction, but beveled walls maintain close mechanical interlocking over a considerable temperature range while allowing relative sliding of parts. .

Next, refer to the sectional view of FIG. This figure shows that annular ridge defined by opposite beveled end walls 54.
Outer conductor body 50 is shown with 52. These beveled end walls are defined by frusto-conical surfaces, as shown at 56 in FIG. These are frustoconical truncated cone surfaces, each having a common apex, indicated by S in FIG.
Reference will now be made to FIG. 10 which illustrates an oblique pyramid and shows the state in which the apex is displaced from the center line of the component. In yet another asymmetrical configuration of Figure 12, the frusto-conical surface is a right circular cone.

FIG. 7 shows a Teflon sleeve 70 having a recess designated by 72 in the figure. This recess is also defined by oppositely beveled end walls 74. These ends define a frustoconical surface, shown at 76 in FIG.
These opposing truncated conical surfaces are each formed by an oblique cone having a common apex at the same center point, that is, apex S in FIG.

Then, according to this aspect of the invention, the components, particularly the outer conductor and the sleeve, maintain the contact between the sleeve and the outer conductor, even when contraction occurs, and fully maintain the contact, It can be seen that it is formed in such a way as to provide a physically intimate seal and maintain a strong physical connection between the connector parts.

Generally, for materials used in high frequency electrical connectors, the outer conductor or component 50 is typically made of metal, while the inner sleeve or component 70 is an insulator, instant plastic or Teflon. . Both of these materials are typical of isotropic materials. Most metals have a much lower coefficient of expansion than plastics, so the geometry of the following description and drawings relates to this particular case, but the idea of the invention is that the outer part is the inner part. It is also applicable to other material combinations including those having a higher expansion coefficient.

In FIG. 6, the outer conductor 50 is shown in FIG.
It can be mimicked as having 56 three inner cylindrical holes connected by two conical faces, shown as 56. When these faces are stretched, they have a common vertex, ie point S in FIG. This shows the apex of each of these cones.

Similarly, FIG. 7 illustrates a sleeve 70 comprised of approximately three cylinders connected by two conical surfaces, shown here as frustoconical surfaces 76. These aspects have a common point,
That is, it should be noted that it is possible to extend to point S in FIG. This is the apex of the common cone.
These cones shown in FIGS. 6 and 7 have a common point S
It is a cone with its apex at.

As shown in FIG. 8, the outer diameter of the cylindrical body including the sleeve 50 is smaller than the diameter of the cylindrical hole corresponding to the outer conductor 50. Thus, the two separate components, outer conductor 50 and sleeve 70, are substantially supported only by their conical surfaces, namely conical surface 56 of outer conductor 50 and conical surface 76 of sleeve 70.

The following parameters are set for the embodiment of FIGS. 6-8.

a = expansion coefficient of outer conductor 50 b = expansion coefficient of sleeve 70 t ₁ = initial temperature t ₂ = final temperature In FIGS.
Any component of is selected. The component is defined and passes through point S. Next, an arbitrary line passing through the point S can be selected, and this line can be called the line SX. The line SX need not coincide with the axis of the inner cylinder that defines the outer conductor, but in practice such a coincidence is usually and desirable. The plane containing the two intersection lines J and SX is JSX
It is indicated by. This surface JSX is shown in FIGS.

Line SY is defined as a line that is perpendicular to line SX and passes through point S in the JSX plane. Of course, the lines SX and SY can be regarded as the X and Y axis lines of the plane JSX. Each component of cone 50 has a coordinate associated with it, so that what has been described for one component of the cone is proof for the other.

Also shown in the drawing is the angle φ as the angle between the X-axis and the previously selected component of the cone, component J. One component of the cone is defined in geometry as a straight line on the conical surface of the cone that passes through the apex.

The X dimension is a length dimension measured from the Y axis line to a point n on the conical component J in the drawing. This point coincides with a point on the conical surface of both the outer conductor and the sleeve. In FIG. 6 this dimension is shown as the length X ₁ relative to the outer conductor, while in FIG. 7 this dimension is shown as the dimension X ₂ relative to the sleeve.

The drawing also shows the Y dimension in relation to the X dimension. The Y dimension is the distance from a point n on the conical surface measured perpendicular to the X axis. In FIG. 6, this dimension is shown as dimension Y ₁ relative to the outer conductor. In FIG. 7, this dimension is the dimension Y ₂ associated with the sleeve 70.

The general equation for a straight line in a geometric shape is Y
= MX + C, where M is the slope of the line and X is Y
It is the intersection with the axis. Now, as shown in the drawing,
It can be assumed that the common axis of the conical surface coincides with the origin of the coordinate system. Then the slope of the component through point n is Y ₁ / X ₁ and the equation for the component through point n is Y = Y ₁ / X ₁ · X.

In FIG. 6, when the temperature of the outer conductor 50 is an isotropic material, the following relationship holds when the temperature changes from t ₁ to t ₂ .

X ₁ ′ = X ₁ (t ₂ −t ₁ ) a; Y ₁ ′ = (t ₂ −t ₁ ) a A line passing through the points n and K ₁ or the inclination m 1 of the conical component is expressed by the following equation.

This equation can be expressed as:

m ₁ (X ₁ (t ₂ −t ₁ ) a−X ₁ ) = Y ₁ (t ₂ −t ₁ ) a−Y ₁ This equation can be summarized as follows.

Thus, the line connecting the points n and k ₁ has the same inclination as the line connecting the points S and n. Furthermore, both lines lie in the same plane, have the same slope and pass a common point, so that they coincide with the components of the cone passing through the point n.

Now referring to FIG. 7, the above description also applies to the expansion or contraction of the sleeve. Based on the above description, the following relationship is obtained.

The above equation applies regardless of whether it was derived from the line Sn or the line nK ₁ .

From the above description, it can be seen that points on the conical surface remain on the original component of the conical surface throughout the change in expansion or contraction due to temperature changes. In this way, when two parts having different expansion rates are assembled so that the conical surfaces engage with each other as shown in FIG. 8, the two conical surfaces have a common vertex, and the materials used are As long as they are anisotropic, these parts maintain their original assembled form without the connections tightening or loosening throughout temperature changes. In accordance with the principles of the present invention as embodied in FIGS. 6-8, the components, outer conductor 50 and sleeve 70, slide along these conical surfaces (beveled end walls) at a given temperature. When the parts expand and contract due to temperature changes over a range, the contact state between these parts is maintained. In this regard, in the above discussion, the part of the equation related to the coefficient of expansion was deleted and it was clarified that the relative coefficient of expansion did not have any effect on the looseness or tightening degree of the connected state of the parts. The point is noted.

Next, still another embodiment of the present invention shown in FIGS. 10 to 12 will be described. These alternative embodiments of the present invention include:
It is provided for the purpose of illustrating various components that are considered to be within the scope of the invention. Although only the outer conductors are shown in FIGS. 10-12, it is understood that opposed sleeves are provided that engage the outer conductor body in the manner described above with respect to FIG.

It can be seen that in the embodiment of FIGS. 6-8, the apex of the cone lies on the centerline of the part. FIG. 10 shows the apex of the cone shown in S in this figure and the center line CL of the outer conductor of the connector.
Indicates that it does not have to be on top.

In FIG. 10, an outer conductor body 61 having its annular ridge 62 defined by opposed beveled end walls 64.
Is shown. These beveled end walls are
It is defined by a frustoconical surface, as shown at 66 in the figure. These are truncated pyramidal truncated conical surfaces each having a common vertex in S. Further, FIG. 10 shows a point A on the center line CL located on the Y axis. It can be seen that the apex of the cone at point S does not coincide with point A, nor is it located on the axis CL of the defined centerline.

In the embodiment of the present invention shown in FIG. 10 and the embodiment of FIGS. 11 and 12, the description relating to FIGS.
This also applies to these alternative embodiments. For simplicity,
These descriptions are omitted again. 10 to 12, in particular,
In the description of FIG. 10, it can be seen that the X and Y dimensions listed above are also shown, for example, in FIG.

FIG. 11 shows still another embodiment of the present invention in which the apex S is arranged on the Y axis. In the embodiment of FIG. 11, both cones have a common vertex at S, so
The equations given above also apply to the form of FIG.

In FIG. 11, the outer conductor body 80 has an annular ridge portion.
82 is shown defined by opposing beveled end walls 84. In this embodiment, for example, the right beveled end wall 84 in FIG. 11 is the corresponding left end wall.
You can see that it is longer than 84. These beveled end walls are defined by frusto-conical surfaces, as shown at 86 in FIG. Similarly, it can be seen that the right side 86 of FIG. 11 is larger than the left side surface 86. This concerns the positioning of the vertices of each cone.

FIG. 12 shows a further embodiment of the invention in which the point S omits one of the cones substantially and one of the end walls, i.e. without the bevel. , End wall with right angle end wall
Moved so that 95 remains. A conical surface is provided on the right side of the embodiment of FIG. In this regard, ridge 92 is defined by beveled wall 94 and end wall 95. There is a frusto-conical surface as shown by reference numeral 96 in FIG. First
The embodiment of FIG. 12 shows a right circular cone rather than the oblique pyramid as in FIGS. 10 and 11. If the apex S is offset from the center line CL, there can be an embodiment in which only one cone exists, but in this case, the cone is an oblique cone instead of a right cone.

While a limited number of embodiments of the invention have been described, it will be apparent to one skilled in the art that numerous other embodiments and variations are within the scope of the invention as claimed. Let's do it.

Claims (13)

[Claims] 1. An electrical connector having an outer conductor connector body having a central hole with an inwardly directed annular ridge, and substantially engaging the hole within the hole of the outer conductor connector body. A sleeve having an annular recess that interlocks with the annular ridge, and an inner conductor adapted to fit inside the sleeve. The annular ridge has a length L And on both sides thereof, beveled end walls that transition between the hole of the outer conductor connector body and the annular ridge, the length L being
Measured axially between points at mutually symmetrical positions spaced apart from each other on each of the beveled end walls, the sleeve being on either one of the beveled end walls. Has an average diameter D measured along a direction perpendicular to the axis of the connector between symmetrically spaced points, the annular recess also having a length of substantially L. And on both sides thereof, there is a beveled recess defining end wall that transitions between the outer diameter portion of the sleeve and the inner diameter portion of the sleeve. Both the end wall of the connector and the end wall of the recess are in contact with each other and from the surface perpendicular to the axis of the connector to the beveled surface of the respective end wall. The measured angles θ are equal to each other, so that the outer conductor connector body and the sleeve A mechanically close coupling and positioning is maintained between the length L and the diameter D and the angle θ, regardless of the relative expansion rates of the outer conductor connector body and the sleeve. It has a relationship as shown by Dtanθ, which allows the relative movement between the beveled end walls of both the outer conductor connector body and the sleeve to be defined by the above equation during expansion and contraction. An electrical connector characterized in that it is designed to be performed along a line. 2. The electrical connector according to claim 1, wherein the inner conductor comprises annular ribs spaced apart from each other, each rib being one of the beveled end walls. An electrical connector characterized by a substantially straight line. 3. The electrical connector according to claim 1, wherein the angle θ is about 45 ° and the length L of the annular ridge portion corresponds to the average diameter of the sleeve. connector. 4. An electrical connector comprising an outer conductor connector body having a central hole, the hole comprising an annular ridge extending radially inward and extending into the hole. A conductor connector body, and means for forming an annular recess having an outer diameter portion within the hole of the outer conductor connector body that substantially fits the hole, and forming an annular recess that interlocks with the annular ridge portion. A sleeve, and an inner conductor adapted to fit in the sleeve, wherein the annular ridge portion has, at both ends thereof, an end portion that transitions between the hole of the outer conductor connector body and the annular ridge portion. A wall, the annular recess has, at both ends thereof, a recess-defining end wall that transitions between an outer diameter portion of the sleeve and a recessed portion,
At least a portion of the end walls of both the ridge and the recess are in mutual contact, and the respective end walls of both the ridge and the recess define a peripheral surface, and the ridge and the recess The peripheral surface at least at the first end of the recess is formed as a frusto-conical surface, and each of the peripheral surfaces at both ends of the ridge and the recess converge to a common point. An electrical connector characterized by being spread in the direction. 5. The electrical connector according to claim 4, wherein the peripheral surface at the second end of the ridge and the recess is defined by a right angle end wall. Characteristic electrical connector. 6. The electrical connector according to claim 5, wherein the frusto-conical surface is a frusto-conical frusto-conical surface. 7. The electrical connector according to claim 5, wherein the frustoconical surface is a right frustoconical frustoconical surface. 8. An electrical connector according to claim 4, wherein both end walls are formed with bevels to define opposite frusto-conical surfaces, and the common point is reduced. An electrical connector characterized by being the common vertex of the frusto-conical surface. 9. The electrical connector according to claim 8, wherein each of the frusto-conical surfaces is a frusto-conical frusto-conical surface. 10. The electrical connector according to claim 8, wherein each of the frusto-conical surfaces is a frusto-conical frusto-conical surface. 11. The electrical connector according to claim 8, wherein the annular ridge portion of the connector body has a length that gradually changes in the circumferential direction about the connector body. An electrical connector characterized in that the annular recess of the sleeve has a length that gradually changes in the circumferential direction around the sleeve. 12. The electrical connector according to claim 4, wherein the common point is located between the peripheral surfaces at both ends of the ridge and the recess. connector. 13. An electrical connector comprising an outer conductor connector body having a central hole and a sleeve adapted to substantially engage the hole within the hole of the outer conductor connector body. The hole of the connector body and the outer periphery of the sleeve have mutual locking means between them, and the mutual locking means has engaging peripheral wall surfaces spaced apart from each other on both sides thereof. And at least a portion of the spaced peripheral wall surfaces of each of the sleeves are in contact with each other, and each of the peripheral wall surfaces at at least one end of the interlocking means is formed as a frusto-conical surface. An electrical connector, wherein the peripheral wall surfaces on both sides of the means are widened in a converging direction so as to point to a common point.