JPH11233183A - Jack connector, cassette connecting device and connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retard wear in contact region in sliding contact, ensure large contact pressure, and enhance stable characteristics in a jack connector having a double contact. SOLUTION: A jack connector 21 which is inserted/removed from the edge side into/from a plug terminal arranging region in which a straight plug terminal 122 is formed in parallel in the vicinity of the edge side of an insulating plate is constituted with a plurality of jack terminals 211 having a tongue-shaped contact region coming in contact with the plug terminal 122 and a jack insulator 112 for arranging each jack terminal 211 in the plug terminal corresponding position. In the contact region of the jack terminal 211, a first contact 211a positioning on the tip side and a second contact 211b continuing to the first contact 211a are formed in a wave shape through a valley part 211c, and a wall surface which comes in contact with the outer surface of the valley part 211c soon before the second contact 211b comes in contact with the plug terminal 122 is formed in the jack insulator 112.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack connector having a double contact, and more particularly to a jack connector having a double contact, which ensures a large contact pressure while suppressing abrasion in a contact area at the time of sliding contact between a jack terminal and a plug terminal. The present invention relates to a jack connector, a cassette connecting device, and a connector that achieve stable and improved characteristics as a connector.

[0002]

2. Description of the Related Art FIG. 14 shows a case where an external storage medium is a circuit board (hereinafter simply referred to as a board) as an example. FIG. 14 illustrates a conventional jack connector together with a board, and FIG. FIG. 16 illustrates a connection state.
FIG. 4 is a diagram illustrating connection characteristics between a jack connector and a board.

In FIG. 14, (14-1) is an overall perspective view showing a conventional jack connector in a partial sectional view.
4-2) is a diagram showing the substrate with the plug terminal arrangement region as the center.

Referring to FIG. 14A, a conventional jack connector 11 includes a plurality of jack terminals 111 and a jack insulator 112 in which the jack terminals 111 are arranged and implanted in a two-row matrix. ing.

In this case, the jack terminal 111 made of an inner strip-shaped metal plate having spring property is a contact 111a having one end curved in the thickness direction.
The other end side from the insulator fixing portion 111c following the lead portion 111b of a predetermined length from a is formed on the external connection terminal 111d, and when the insulator fixing portion 111c is implanted in the jack insulator 112. The above contact 1
A predetermined spring pressure, that is, a contact pressure is generated at 11a.

A box insulator 112 having a box shape with a bottom.
The terminal planting area 112a forming the bottom plate is surrounded by a peripheral wall 112b having a height exceeding the length from the lead portion to the contact tip of the jack terminal 111. The terminal planting area 112a A terminal hole 112c large enough to press-fit the insulator fixing portion 111c of the jack terminal 111 so that the terminal 111 can be fixed is formed in a two-row matrix.

The center line on the inner side of the peripheral wall 112b 'located on both sides in the terminal row direction of the peripheral wall 112b is
A guide groove 112d for guiding a plug terminal arrangement region of the substrate 12 described later is formed from the peripheral wall opening side toward the bottom plate.

The jack terminal 111 is inserted into the terminal hole 112c from the external connection terminal side.
When the insulator fixing portion 111c is press-fitted into each terminal hole 112c when the jack terminal 111 is inserted so that the apex of 11a faces the inside of the peripheral wall, the jack terminal 111 is fixed to the jack insulator 112. Jack connector 1 in which jack terminal 111 is implanted in jack insulator 112
1 can be configured as shown.

On the other hand, the board 12 to be connected / disconnected to the jack connector 11 is an insulating plate 121 constituting the board 12.
A plug terminal placement area A in which a flat plug terminal 122 is provided at each position corresponding to each of the jack terminals 111 on both surfaces thereof so as to protrude from the substrate surface. A circuit arrangement area A '(not shown) connected to each of the plug terminals 122 is formed on the other end side following A.

The tip 122 'of each plug terminal 122
The tip surface 12 of the insulating plate 121 is used to suppress damage as a plug terminal and peeling from the tip when the substrate is used alone.
1 '.

The distance between the surfaces of the plug terminals 122 positioned back to back via the insulating plate 121 is larger than the distance between the contacts 111 a of the jack terminals 111 opposed to each other in the jack connector 11.

Therefore, the plug connector arrangement area A of the board 12 is guided by the guide groove 112d of the jack insulator 112 as shown by arrows B ₁ and B ₂ in the jack connector 1.
By inserting / removing from / to, the jack terminal 111 and the plug terminal 122 corresponding to each other can be connected / disconnected.

The connection state and connection characteristics when the board 12 is inserted into and removed from the jack connector 11 will be described below with reference to FIGS. That is, FIG. 1 illustrating a connection state.
5, (15-1) is the jack connector 11 and the board 12
(15-2) shows the state before the connection between the jack terminal and the plug terminal, and (15-2)
3) shows the state when the connection between the jack terminal and the plug terminal is completed.

In (15-1) of the figure, the jack terminals 111 described above are implanted into the jack insulator 112 viewed in section by press-fitting at the respective insulator fixing portions 111c.
In this state, the contacts 111a of each terminal 111 face each other between the rows.

The distance a ₁ between the contacts is
As described above, the distance a ₂ between the plug terminal surfaces of the substrate 12
Is smaller than. Then, the substrate 12 is moved to an arrow B
_{When the} terminal is moved to the jack connector 11 side as shown in FIG.
The apex 111a 'of a is in contact with the insulating plate 121 of the substrate 12 as shown in (15-2), and the substrate 12
As a result, the apex 111a 'runs on the plug terminal 122 due to the displacement as the jack terminal 111 accompanying the movement of (15).
The state shown by -3) is established, and the connection between the two is completed.

FIG. 16 illustrating the connection characteristics at this time.
The horizontal axis X indicates the moving distance of the substrate 12, and the vertical axis Y indicates the contact pressure of the jack terminal with respect to the plug terminal. That is, when the apex 111a 'of the contact 111a contacts the insulating plate 121, the contact 111a
Contact pressure b ₁ is generated with respect to the insulating plate 121.

Next, as the movement of the substrate 12 proceeds, the contact pressure of the contact 111a against the plug terminal 122 increases when the vertex 111a 'comes into contact with the edge of the plug terminal 122, and the vertex 111a' further increases. movement of a predetermined contact pressure b ₂ while the substrate 12 was maintained with constant thereafter eliminates the increase of the contact pressure at the time of fully riding was the plug terminal to reach the point of exit.

When the board 12 is pulled out from the jack connector 11, the above points are reversed. In the contact structure between the jack terminal and the plug terminal exhibiting such connection characteristics, the contact and the plug terminal make sliding contact between the time points.
There is an advantage that a removing effect (hereinafter referred to as a wiping effect) of a foreign substance or the like adhering to the contact area of the contact surface 11a 'or the plug terminal is generated, and a reliable connection between the two can be realized.

Therefore, as described with reference to FIG. 14, by inserting or removing the board 12 from the jack connector 11,
Reliable connection between the jack terminal 111 and the plug terminal 122 and release thereof can be realized.

[0020]

However, in the contact structure between the jack connector and the substrate described above, the contact 111
Since the apex 111a 'of a is immediately continued from the time when the apex 111a' rides on the plug terminal 122 to the time in FIG. 16 in a state where a predetermined contact pressure is applied to the plug terminal 122, the sliding contact of the apex 111a ' There is a problem that the accompanying mechanical abrasion progresses, and as a result, the life of the connector as a connector is reduced.

On the other hand, if the contact pressure of the contact with the plug terminal is reduced, the above-mentioned mechanical wear can be reduced. In this case, however, instantaneous mechanical vibration or the like given from the outside causes instantaneous contact between the contact and the plug terminal. There has been a problem that a disconnection phenomenon (hereinafter referred to as a chattering phenomenon) tends to occur, and as a result, contact reliability in a connection region as a connector may be reduced.

[0022]

SUMMARY OF THE INVENTION The object of the present invention is to provide a jack connector which is inserted and withdrawn from a side of a plug terminal in an area where a straight plug terminal is formed in parallel near an end of the insulating plate. A plurality of jack terminals having a tongue-shaped contact area that contacts the plug terminals, and a jack insulator each of which is implanted at a position corresponding to the plug terminal, wherein the jack terminals are A first contact having a contact region located on the tip end side and a second contact following the first contact are formed in a waveform passing through a valley, and the jack insulator is configured such that the second contact is formed by the plug terminal The problem is solved by a jack connector having a wall surface which comes into contact with the outer surface of the valley just before contacting the valley.

Further, a cassette having a plug terminal arrangement region in which straight plug terminals are formed in parallel in the vicinity of an end of the insulating plate, and a tongue-like contact region for contacting each of the plug terminals. A jack connector having a jack terminal, wherein the jack terminal has a first contact whose contact area is located on the distal end side, and a second contact following the first contact is formed in a waveform through a trough, The cassette is solved by a cassette connection device having a wall surface that abuts the outer surface of the valley immediately before the second contact contacts the plug terminal.

Further, a plug connector having a plug terminal arrangement region in which a straight plug terminal is formed in parallel near an end of the insulating plate, and a tongue-like contact region that contacts each plug terminal are provided. A jack connector having a jack terminal, the jack terminal having a first contact having a contact area located on the distal end side and a second contact following the first contact formed in a waveform through a valley. The plug connector is solved by a connector having a wall surface that comes into contact with an outer surface of the valley immediately before the second contact comes into contact with the plug terminal.

The contact pressure of the above-mentioned contact with the plug terminal is smaller than the predetermined value immediately before the end of the insertion of the board, that is, immediately before the point in FIG. When the jack connector is configured so as to achieve both the above-described wiping effect and the elimination of the chattering phenomenon, it is possible to reduce mechanical wear in the contact region of the jack connector.

Therefore, according to the present invention, a jack connector is formed by connecting two curved contacts to form a jack terminal. Then, the contact pressure of the first contact located on the distal end side with respect to the plug terminal is set to be smaller than a predetermined value, and the second contact located deeper than the first contact comes into contact with the plug terminal. An outer surface point of a valley between the first contact and the second contact is brought into contact with an inner surface of the side wall of the jack insulator, so that respective contact pressures of the first and second contacts with respect to the plug terminals are set to predetermined values. Jack terminals are formed as described above.

This means that the area in which the first and second contacts are in sliding contact with the plug terminal at a predetermined contact pressure can be reduced, and the first and second contacts are not inserted at the board insertion end position.
2 shows that both contacts make contact with the plug terminal at a predetermined contact pressure.

Therefore, it is possible to provide a jack connector which can simultaneously suppress mechanical wear as a contact and the above-described wiping effect, and can suppress the above-mentioned chattering phenomenon by a predetermined contact pressure and double contact.

[0029]

FIG. 1 is a view for explaining a jack connector according to the present invention together with a board, FIG. 2 is a view for explaining a jack terminal of FIG. 1, and FIG. 3 is a view for explaining a jack insulator of FIG. FIG. 4 is a diagram illustrating the connection state between the jack connector and the board according to the present invention, and FIG. 5 is a diagram illustrating the connection characteristics between the jack connector and the board according to the present invention.

FIG. 6 is a diagram for explaining an application example of the jack connector of FIG. 1 as a cassette connecting device. FIG. 7 is a diagram for explaining the jack insulator of FIG. 6, and FIG. 8 is an assembly of the jack connector of FIG. 9 is a diagram schematically illustrating the cassette of FIG. 6, and FIG. 10 is a diagram illustrating a connection state between the jack connector and the cassette of FIG.

FIG. 11 is a diagram for explaining an application example of the jack connector of FIG. 6 as a connector, and FIG.
FIG. 13 is a diagram illustrating a plug connector, and FIG. 13 is a diagram illustrating a connection state between a jack connector and a plug connector.

FIGS. 1 to 10 show an example in which the present invention is applied to the substrate described with reference to FIG.
The same reference numerals are given to the same target members and parts as those in FIG. 15, and overlapping descriptions are omitted.

FIG. 1 illustrates the jack connector according to the present invention together with a substrate. FIG. 1A shows a completed state of the jack connector in a partially sectional view as in FIG.
2) shows the substrate as in FIG.

That is, in (1-1) of the figure, the jack connector 21 is composed of a plurality of jack terminals 211 according to the present invention and the jack insulator 112 described with reference to FIG. .

Here, for easy understanding, the jack terminal will be described first with reference to FIG. That is, in FIG. 2 illustrating the jack terminal, (2-1) is an overall perspective view, and (2-2).
Is a side view, and (2-3) is a plan view.

In the figure, a jack terminal 211 made of a metal plate having the same width and a strip shape and having spring properties as the jack terminal 111 has a first contact 211a and a second contact 211a which are convexly curved in the same direction at one end. Contact 211b is formed via the valley portion 211c, and the second contact 211b
On the other end side of the lead portion 211d having a predetermined length following b, an insulator fixing portion 111c equal to the jack terminal 111 and an external connection terminal 111d are formed in a straight line.

Note that the region of the straight insulator fixing portion 111c, the region of the external connection terminal 111d, and the contact side region including the lead portion 211d have a boundary region D between the insulator fixing portion and the lead portion, and the valley side has a peak. When the jack terminal 211 is implanted in the jack insulator 112 by the insulator fixing portion 111c, the outer surface point 211c 'of the valley portion 211c is The jack insulator 112 is located away from the inner surface of the peripheral wall.

When the surface including the insulator fixing portion and the external connection terminal is set as a reference surface S for the jack terminal 211, the apex 211 of the first contact 211a
a 'distance from the reference plane S of d ₁ and the second contact vertices of 211b 211b' distance from the reference surface S of d ₂
Are formed so that “d ₁ > d ₂ ”.

The vertex 2 of the second contact 211b
The distance d ₃ from the outer surface point 211 c ′ of the valley portion 211 c to the board insulator 12
Plug terminal surface when inserted into the jack insulator 1
12 gap between the inner surface of the peripheral wall of, that is, formed to be slightly larger than d ₂ in FIG. 15.

Further, the length e from the boundary area D to the contact side tip with respect to the reference surface S is formed substantially equal to the length from the lead portion 111b of the jack terminal 111 to the contact tip.

Therefore, as shown in FIG. 3A, the jack terminal 211 is inserted into each terminal hole 112c of the jack insulator 112 from the side of the external connection terminal 111d through the first and second contacts 211a and 211b. When There inserted as indicated by the arrow f _1, f ₂ so as to face between terminal rows, the jack 211 is crimped to the jack insulator 112 when the insulator fixing portion 111c is press-fitted in the respective terminal hole 112c The jack terminal 211 is a sectional view of the required jack connector 21 implanted in the jack insulator 112 (3-2), and thus (1-1) in FIG.
Can be configured as shown in FIG.

The facing first contact 211a
It is apparent from the relationship of “d ₁ > d ₂ ” described with reference to FIG. 2 that “d ₄ <d ₅ ” is established between the distance d ₄ between the gap and the gap d ₅ between the second contacts 211b. And the outer surface point 211c 'of the valley 211c is
2 as described with reference to FIG. 2.

On the other hand, the board 12 connected to the jack connector 21 in FIG. 1 is the same as that described in FIG. Therefore, the guide groove 112 in the jack insulator 112
By inserting and removing the plug terminal arrangement area A of the substrate 12 from the jack connector 21 as shown by arrows B ₁ and B ₂ in FIG. Can be connected / disconnected as in the case of the jack connector 11.

The connection state and connection characteristics when the board 12 is inserted into and removed from the jack connector 21 will be described below with reference to FIGS. That is, in FIG. 4 illustrating the connection state,
(4-1) shows the state before the connection of the jack connector to the board, (4-2) shows the state when the first contact of the jack terminal is connected to the plug terminal of the board, and (4-).
3) shows the state when the second contact of the jack terminal contacts the insulating plate of the board, and (4-4) shows the state after the connection between the jack connector and the board in sectional view. .

In (4-1) of FIG.
The jack terminals 211 described above are implanted at the respective insulator fixing portions 111c in the jack insulator 112, and both the first and second contacts 211a and 211b of each terminal 211 are located between rows. They are facing each other.

[0046] Therefore when inserting the substrate 12 into the jack connector 21 as shown by an arrow B _1, and a first contact 211a of each jack 211 is connected to the plug terminal 122 on first substrate (4-2 ).

In this case, the displacement of the jack terminal 211 depends on the insulator fixing portion 111c and the lead portion 211 described with reference to FIG.
d, and the first contact 21
Since the distance between the first contact 211a and the boundary region D is large, the contact pressure of the first contact 211a with respect to the plug terminal can be easily made smaller than a predetermined value by appropriately setting the spring constant of the jack terminal 211. it can.

In the subsequent insertion of the substrate 12, the second contact 211b comes into contact with the insulating plate 121 of the substrate 12 (4
At this point, the valley 2 described above is obtained.
The outer surface point 211c 'of 11c contacts the inner surface of the peripheral wall of the jack insulator 112.

When the substrate 12 is further inserted, the second contact 211b rides on the surface of the plug terminal 122 to reach the state shown by (4-4). At this point, as described with reference to FIG. The vertex 211 of the second contact 211b
Since b 'and the valleys 211c of the outer surface points 211c' is disparity d ₃ between greater than gap to the peripheral wall inner surface of the plug pin surface will be the outer surface point 211c 'is pressed by the inner surface of the peripheral wall, resulting in said First and second contacts 21
The contact pressure of the plugs 1a and 211b with the plug terminals is increased and equalized by the pressing force from the outer surface point 211c '.

Then, the first and second contacts 2 in the case
11a, the contact pressure on the plug pin 122 of 211b can be adjusted to a predetermined value by setting the gap d ₆ between the contact appropriately.

FIG. 5 shows the connection characteristics of the first contact at this time as in FIG.
The apex 211a of 1a 'contact pressure b ₁ to the insulating plate 121 to the contact 211a at the time of contact with the insulating plate 121' is generated is the same as in FIG. 16.

Next, the contact pressure of the contact 211a with respect to the plug terminal 122 increases from the time when the apex 211a 'comes into contact with the plug terminal 122 by the movement as the substrate 12, and the time when the contact 211a rides on the plug terminal 122. Although the contact pressure does not increase, the contact pressure of the contact 211a with respect to the plug terminal 122 at this point is b ₂ ′ smaller than the contact pressure b ₂ in FIG.

When the substrate 12 is further inserted, the apex 211b 'of the second contact 211b is moved to the insulating plate 12b.
When the outer surface point 211c 'of the valley portion 211c reaches the point of contact with the inner surface of the peripheral wall via the point of contact with the plug terminal 122 and the point of contact with the plug terminal 122, the outer surface point 211c
increase of the first and contact pressure due to the displacement of the second contact begins around the c ', while the substrate 12 after the timing shift is completed the respective contacts to maintain a predetermined contact pressure b ₂ where constant Is completed and the point is reached.

When the board 12 is pulled out from the jack connector 21, the above points are reversed in the same manner as in FIG. Such jack terminal 211
In the contact structure between the valley portion 211 and the plug terminal 122,
Since the contact pressure of the first contact 211a against the plug terminal 122 is small until the outer surface point 211c 'of the first contact 211c abuts on the inner surface of the peripheral wall, it is possible to suppress the mechanical wear caused by the sliding contact of the first contact. This indicates that the wiping effect described above can be obtained, and that after the point of time, the contact pressure with respect to the plug terminal becomes a predetermined value and double contact is formed at the same time.

Accordingly, as a result, it is possible to suppress a reduction in the life of the connector as a connector, and at the same time, to realize a connector capable of improving the contact reliability by suppressing the occurrence of the chattering phenomenon due to the wiping effect and the mechanical vibration described above. be able to.

The case where the jack connector of the present invention is applied to a cassette for a game or the like will be described as a cassette connecting device. In FIG. 6, the cassette connecting device 30 includes a jack connector 31 shown in (6-1) and (6-2). And the cassette shown.

That is, in (6-1) of the figure, the jack connector 31 in this case is composed of a plurality of jack terminals 211 and each of the jack terminals 211 described in FIG. The jack insulator 311 is disposed so as to be opposed to and implanted. The square groove 311d formed at a position corresponding to each jack terminal on the outer peripheral surface of the peripheral wall on both sides in the terminal row direction of the jack insulator 311 is formed. The valley portion 211c of the jack terminal 211 is exposed.

Further, in (6-2), the cassette 32 is
And the two cassette housings 321 for holding and fixing the substrate 12 described above. At the position corresponding to each plug terminal on the inner wall surface of each cassette housing 321, a projection 321 c is formed as shown in an extraction diagram (a) when the cassette 32 is viewed in cross section by arrows g ₁ to g ₂ . The protruding portion 321c engages with the valley portion 211c of the jack terminal 211.

Here, for easy understanding, details of the jack connector 31 and the cassette 32 will be described first. That is, in FIG. 7 illustrating the jack insulator 311 in this case,
(7-1) is an overall perspective view in which a part is viewed in cross section,
-2) is a front view of (7-1) viewed from the direction of arrow E.

A jack insulator 311 having a box shape with a bottom as shown in FIG.
Is a terminal planting area 11 in the jack insulator 112.
FIG. 2 shows a portion from the lead portion 211d of the jack terminal 211 to the tip of the contact, around the terminal planting area 311a having a size slightly smaller than the width of the terminal row in the terminal row direction.
And a terminal hole 112c for fixing the jack terminal 211 is provided in the terminal planting area 311a in the case where the jack insulator 211 is used. They are formed in the same position in a two-row matrix.

A guide groove 311c corresponding to a guide linear projection 321a formed on a cassette housing 321 to be described later is formed on the outer center line of the peripheral wall 311b 'located on both sides of the peripheral wall 311b in the terminal row direction. Are formed in the direction of the bottom plate from the end face side of the peripheral wall.

The outer surface of the peripheral wall 311b ″ located on both sides in the terminal row direction of the peripheral wall 311b is provided at a position corresponding to each of the terminal holes 112c with a width exceeding the contact width of the jack terminal 211 and a predetermined depth. Square groove 31
1d is formed in the direction of the bottom plate from the end face of the peripheral wall, and the bottom surface 311d 'of the square groove 311d is
2 so as to correspond to the inner surface of the peripheral wall.

In the middle of the rectangular groove 311d in the longitudinal direction, the opening window 3 from which the bottom surface 311d 'is removed by a predetermined length.
11e is formed, and the formation position of the opening window 311e is the jack terminal 211 on the jack insulator 311.
Corresponds to the trough 211c of the terminal 211 when the terminal 211 is planted, and its length is set to a length that can cover the trough 211c.

Therefore, as shown in FIG. 8 (8-1), each of the terminal holes 112c of the jack insulator 311 has an arrow f ₁ ,
by inserting the jack 211 as f ₂ by implanting, configuring required jack connector 31 which each contact is face between terminal row (8-2) as thus shown in FIG. 6 it can.

At this point, the jack insulator 31
As described above, the valley portion 211c of the jack terminal 211 is located at each of the opening windows 311e in FIG.

FIG. 9 for explaining the structure of the cassette 32.
As described above, the cassette 32 is composed of the substrate 12 and two cassette housings 321 which are disposed on both sides of the substrate 12 and sandwich the substrate 12 therebetween.

In this case, each cassette housing 321
Is a U-shaped front view from the direction of arrow F so as to cover a half area of the peripheral surface of the jack insulator 311 described in FIG. 7 in the terminal row direction, and the guide groove of the jack insulator 311 of the peripheral wall leg portion. In a region corresponding to 311c, a linear projection 321a large enough to fill the guide groove by half is provided with a peripheral wall 321b formed to protrude inward.

Then, the cassette housings 321 opposed to each other via the plug terminal arrangement area A of the substrate 12 are fixed by closely contacting the linear projections 321a with each other. Two of the peripheral walls 321
The cassette 32 in which the substrate 12 is positioned and fixed so as to be surrounded by b is configured.

At a predetermined position of each area corresponding to the plug terminal 122 on the inner surface of each cassette housing peripheral wall when configured as the cassette 32, a width h ₁ that can enter the square groove 311d of the jack insulator 311 is provided. The square groove 311
d is substantially protruding portion 321c of the corresponding height h ₂ is formed to a depth of two of the linear protrusion 321a which is in close contact
When the cassette 32 is inserted into the jack connector 31 to a predetermined position by using the projecting region formed by the above as a guide for the guide groove 311c of the jack connector 31, the projecting portion 321c is formed in the opening window 311e of the jack connector 31. It is located in the area.

This is because, as described with reference to FIG. 7, the bottom surface 311d 'of the square groove 311d substantially coincides with the inner surfaces of both side peripheral walls of the jack insulator 112 in the terminal row direction. The upper surface 321c 'of the protruding portion 321c located at the position substantially coincides with the inner surfaces of the peripheral walls on both sides in the terminal row direction of the jack insulator 112.

Accordingly, the surface corresponding to the inner surface of the peripheral wall on both sides in the terminal row direction of the jack insulator 112 is
The cassette 32 formed as the upper surface 321c 'of 21c can be configured as shown in (6-2) of FIG.

The cassette 32 is connected to the jack connector 31.
FIG. 10 illustrates a connection state when the connector is inserted and removed with respect to FIG.
(10-1) shows the state before the connection between the jack connector and the cassette, (10-2) shows the state when the first contact of the jack terminal is connected to the plug terminal of the cassette, and (10-3) shows the state when the plug terminal of the cassette is connected. FIG. 5 is a cross-sectional view showing a state where the second contact of the jack terminal contacts the plug terminal of the cassette, similarly to FIG. 4.

That is, in (10-1) of the figure, the above-mentioned jack terminals 211 are attached to the respective insulator fixing portions 111 on the jack insulator 311 constituting the jack connector 31.
c, and as shown in FIG.
Each of the first and second contacts 211a and 211b is facing each other between rows, and the valley portion 211c of the jack terminal 211 is connected to the jack insulator 311.
As described with reference to FIG. 8, it is located in a state of being exposed in the area of the opening window 311e located in the square groove 311d.

On the other hand, the cassette 32
Is located in the cassette 3
2 and is located inside a peripheral wall 321b formed by two cassette housings 321 constituting the peripheral wall 321b.
The aforementioned protruding portion 321c is formed at a predetermined position on the inner surface corresponding to the plug terminal 122.

Therefore, the cassette 32 is connected to the linear projection 32.
When the first contact 211a of each jack terminal 211 is first connected to the plug terminal 122 of the cassette 32 when inserted into the jack connector 31 as shown by the arrow G in the guide at 1a, the state shown in (4-2) is reached. Become.

The displacement of the jack terminal 211 in this case is the same as (4-2) in FIG. 4, and at this time, the jack terminal 211 exposed and positioned in the area of the opening window 311e is provided.
The outer surface point 211c 'of the valley portion 211c is located slightly lower than the inner surface of the peripheral wall on both sides in the terminal row direction of the jack insulator 112, in other words, the bottom surface 311d' of the square groove 311d in the jack insulator 311. This is also as described above.

When the cassette 32 and subsequently the substrate 12 are inserted, the second contact 211b comes into contact with the plug terminal 122 of the substrate 12 to reach the state shown by (10-3). The above valley 211
4 (4-4) in FIG. 4 since the outer surface point 211c ′ of the contact point c contacts the protruding portion 321c formed on the cassette 32.
As described above, the first and second contacts 211
The contact pressure of the plugs a and 211b with the plug terminals is increased and equalized by the pressure from the outer surface point 211c '.

As a result, similarly to the case of connecting / disconnecting the jack connector 21 and the board 12 described with reference to FIG. 4, a reduction in the life of insertion / removal of the jack connector with respect to the cassette can be suppressed, and at the same time, mechanical vibrations and the like occur. It is possible to constitute a cassette connecting device capable of improving the contact reliability by suppressing the occurrence of the chattering phenomenon.

The projecting portion 3 of the cassette 32
Even if 21c is changed to a linear protrusion corresponding to the square groove 311d, the same effect can be obtained. FIG. 11 illustrates a second application example in which the jack connector of the present invention is applied to a plug connector to form a connector, and the connector 34 according to the present invention is described in FIG. It comprises a jack connector 31 and a plug connector 35 indicated by (11-2).

[0080] Then (11-2) plug connector 35 in this case shown in a side cross-sectional view of FIG. 12 taken along the a (11-2) by the arrow j ₁ to j ₂ (12-1) and front view ( 12
As shown in -2), a plurality of straight plug terminals 351 and each of the plug terminals 351 are connected to the plug terminals 1 on the substrate 12.
22 and a plug insulator 352 implanted in the same arrangement.

One end of the straight plug terminal 351 is connected to the first and second contacts 21 of the jack terminal 211.
The other end of the contact 351a that contacts the first connection terminal 351c through the insulator fixing portion 351b is connected to the external connection terminal 351c.
Is formed.

On the other hand, a plug insulator 352 having a bottomed box shape
Is a bottom plate 352a on which the straight plug terminals 351 are implanted.
A peripheral wall 352b having the same shape as a peripheral wall formed when the two cassette housings 321 of the cassette 32 described with reference to FIG. The insulating plate 12 is located at a position corresponding to the insulating plate 121 of the substrate 12 when the substrate 12 is fixed by the two cassette housings 321.
An insulating plate 352c having the same size as 1 is formed to protrude from the bottom plate 352a.

On the peripheral wall 352b, a linear projection having the same size as a projection formed when two linear projections 321a are brought into close contact with positions corresponding to the linear projections 321a of the cassette housing 321. 352b 'is formed.

A terminal hole 352 to which the straight plug terminal 351 can be fixed by press-fitting the insulator fixing portion 351b is formed at the base of the insulating plate 352c in the bottom plate 352a.
d is formed, and by inserting the straight plug terminal 351 into the terminal hole 352d, the contact 351a comes into close contact with the surface of the insulating plate 352c.

At the position corresponding to the projecting portion 321c in the cassette housing 321, the width and height are set to the projecting portion 3c.
A rectangular linear projection 352e equal to 21c is formed so as to protrude from the vicinity of the opening of the peripheral wall toward the bottom plate. When the plug insulator 352 is inserted into the jack connector 31 using the linear projection 352b 'as a guide. The square linear projection 352e is adapted to enter the square groove 311d of the jack connector 31.

Then, the plug connector 35 is inserted into the terminal hole 352d of the plug insulator 352 by press-fitting the straight plug terminal 351 having the external connection terminal 351c at the head from the peripheral wall side, thereby connecting the plug connector 35 (FIG. 11B). Can be configured as shown in FIG.

FIG. 13 illustrates a connection state when the plug connector 35 is inserted into and removed from the jack connector 31. (13-1) shows a state before connection between the jack connector and the plug connector (13-2). ) Shows the state at the time of connection of both, as viewed in cross section, as in FIG.

That is, in (13-1) of the drawing, a straight plug terminal 351 is provided in the plug connector 35 in the cassette 32.
Are implanted at respective positions corresponding to the respective 122. Therefore, the plug connector 35 is connected to the cassette 32.
When the plug connector 35 is inserted into the jack connector 31 as indicated by the arrow G in the same manner as
Enters the square groove 311d of the jack connector 31,
The upper surface 352e 'of the rectangular linear projection 352e substantially coincides with the upper surface of the projecting portion 321c of the cassette 32 as described above, in other words, the inner surfaces of the peripheral walls on both sides in the terminal row direction of the jack insulator 112 described with reference to FIG. Therefore, as described in (4-4) of FIG. 4, the contact pressure of the first and second contacts 211a and 211b with respect to the plug terminal is increased and equalized by the pressure from the outer surface point 211c '. .

Accordingly, it is possible to configure the required connector 34 that can simultaneously suppress the shortening of the life of the plug connector as a jack connector as well as the chattering phenomenon and the wiping effect.

[0090]

As described above, according to the present invention, it is possible to provide a jack connector and a connector in which a large contact pressure is secured and a stable characteristic is improved while suppressing abrasion in a contact area due to sliding contact. it can.

In the description of the present invention, the case where the plug terminal of the substrate is formed so as to protrude from the insulating plate is taken as an example. However, the plug terminal is formed on the substrate by, for example, a normal pattern electrode forming technique. In the case of a thin-film pattern electrode, "d ₂ " of the jack terminal 211 described with reference to FIG.
It is apparent that the same effect can be obtained by appropriately setting “d ₃ ” and “d ₃ ” in accordance with the pattern electrode.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a jack connector according to the present invention together with a board.

FIG. 2 is a view for explaining a jack terminal of FIG. 1;

FIG. 3 is a diagram illustrating the jack insulator of FIG. 1;

FIG. 4 is a diagram illustrating a connection state between a jack connector and a board according to the present invention.

FIG. 5 is a diagram illustrating connection characteristics between the jack connector and the board according to the present invention.

FIG. 6 is a diagram illustrating an application example of the jack connector of FIG. 1 as a cassette connection device.

FIG. 7 is a diagram illustrating the jack insulator of FIG. 6;

FIG. 8 is a view for explaining a method of assembling the jack connector of FIG. 6;

FIG. 9 is a diagram schematically illustrating the cassette of FIG. 6;

FIG. 10 is a view for explaining a connection state between the jack connector and the cassette shown in FIG. 7;

FIG. 11 is a diagram illustrating an application example of the jack connector of FIG. 6 as a connector.

FIG. 12 is a view for explaining the plug connector of FIG. 11;

FIG. 13 is a diagram illustrating a connection state between a jack connector and a plug connector.

FIG. 14 is a diagram illustrating a conventional jack connector together with a board.

FIG. 15 is a diagram illustrating a connection state between a jack connector and a board.

FIG. 16 is a diagram illustrating connection characteristics between a jack connector and a board.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 12 Circuit board 21, 31 Jack connector 30 Cassette connection device 32 Cassette 34 Connector 35 Plug connector 111c, 351b Insulator fixing part 111d, 351c External connection terminal 112, 311 Jack insulator 112b Peripheral wall 112c, 352d Terminal hole 112d Guide groove 121 Insulation Plate 122 Plug terminal 211 Jack terminal 211a First contact 211a ', 211b' Apex 211b Second contact 211c Valley 211c 'Outer surface point 211d Lead 311 Jack insulator 311a Terminal planting area 311b, 311b', 311b ", 321b, 352
b Peripheral wall 311c Guide groove 311d Square groove 311d 'Bottom surface 311e Open window 321 Cassette housing 321a, 352b' Linear projection 321c Projecting portion 351 Straight plug terminal 351a Contact 352 Plug insulator 352a Bottom plate 352c Insulating plate 352e Square projection

Claims (4)

[Claims] 1. A tongue piece that comes into contact with the plug terminal, wherein a jack connector that is inserted into and removed from a plug terminal arrangement area in which a straight plug terminal is formed in parallel near an end of the insulating plate from the end is provided. A plurality of jack terminals each having a contact area in a shape of a circle, and each of the jack terminals having a jack insulator implanted at a position corresponding to the plug terminal. A first contact and a second contact following the first contact are formed in a waveform through a valley, and the jack insulator is provided with the valley immediately before the second contact comes into contact with the plug terminal. A jack connector comprising a wall surface that abuts an outer surface of the jack connector. 2. The contact pressure of the first contact and the second contact with respect to the plug terminal in a state where the outer surface of the valley portion is in contact with the wall surface of the jack insulator. The jack connector according to claim 1, wherein the jack connector is formed so as to be formed as follows. 3. A cassette having a plug terminal arrangement region in which a straight plug terminal is formed in parallel near an end of an insulating plate, and a tongue-shaped contact region that contacts each of the plug terminals. A jack connector having a jack terminal, wherein the jack terminal has a first contact whose contact region is located on the distal end side, and a second contact following the first contact is formed in a waveform through a valley, The cassette connecting device, wherein the cassette has a wall surface that comes into contact with an outer surface of the valley immediately before the second contact comes into contact with the plug terminal. 4. A plug connector having a plug terminal arrangement region in which a straight plug terminal is formed in parallel near an end of an insulating plate, and a tongue-like contact region that contacts each plug terminal. A jack connector having a jack terminal having a first contact having a contact area located on the distal end side and a second contact following the first contact formed in a waveform through a valley. The connector according to claim 1, wherein the plug connector includes a wall surface that comes into contact with an outer surface of the valley immediately before the second contact comes into contact with the plug terminal.