JP2002124339A - Electrical connector with cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To be able to correspond to an automated fitting for making a compact compression-type electric connector with a cap. SOLUTION: A cap 4 to cover a contact point part 29 is attached to an electric connector equipped with an insulation housing 2 having a slit 14, and a conductive arm contact 2, having a lead part 21 protruding from an end side 11 of the housing 2 and a contact point part 29 capable of displacement protruding from the other end side 12 of the housing 2. This cap 4 is an integrally molded item, with a case part 41 fitted in freely detachably to the housing 2 from the other end side 12 and a cover part 42 for covering the top of the case part 41. With the electric connector with the cap 4, the lead part 21 is uncovered, but the contact point part 29 is covered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression type electric connector with a cap, and more particularly to a small size electric connector with a cap used for a cylinder head of a digital video camera.

[0002]

2. Description of the Related Art A small cylinder head is used for a hand-held imaging device such as a digital video camera. The compact cylinder head uses a compression-type electrical connector that connects the first circuit board and the second circuit board.

A typical compression-type electrical connector comprises an insulative housing and conductive arm contacts, the housing having a slot for receiving the arm contacts, and the contacts projecting from one end of the housing. A lead portion, a press-fit portion to the housing, a curved portion allowing displacement in the slot, and a contact portion protruding from the other end of the housing after exiting the slot. The contact portion is fixed to the first circuit board by brazing or the like, and the contact portion is pressed against the conductive surface of the second circuit board.

A plurality of electrical connectors are fixed at predetermined positions on one surface of the first circuit board by, for example, brazing contact leads. The first circuit board is opposed to the second circuit board via the electric connector, and the first circuit board and the second circuit board are pressed. The contact portion of the arm contact of the electrical connector is pressed against the conductive surface of the second circuit board, the curved portion of the arm contact is deformed, and the contact portion is pressed while wiping the conductive surface on the second circuit board. , The contact portion and the conductive surface are electrically connected.

[0005]

With the rapid change in the miniaturization of imaging equipment in recent years, the cylinder head has also become smaller,
The first circuit board, the second circuit board, and the electrical connectors connecting them have also become remarkably small in size. When the electrical connector has a small size, positioning when attaching the lead portion of the electrical connector to the first circuit board becomes difficult, and handling becomes difficult. Even small-sized electrical connectors need to be automatically fixed to the first circuit board, and there has been a demand for an easy-to-handle electrical connector that can support automated mounting.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a compression-type electrical connector having a small size, which is provided with a cap so as to be compatible with automated mounting.

[0007]

According to a first aspect of the present invention, there is provided an electric connector with a cap, comprising: an insulating housing; a lead portion held by the housing and projecting from one end of the housing; An electrical connector having a conductive arm contact having a displaceable contact portion protruding from an end; and a cap-equipped electrical connector having a cap covering the contact portion attached thereto, wherein the cap is provided on the housing. This is an integrally molded product of a case part detachably fitted from the other end side and a lid part covering the top of the case part. A cap comprising a case fitted to the housing from the other end and a lid covering the top of the case is fitted to the housing with the lead of the housing exposed. Therefore, when fixing the lead portion to the circuit board, the cap portion of the electric connector with cap is held, the lead portion of the electric connector is pressed against the circuit board, and the lead portion is fixed to the circuit board. Since the case portion of the cap is detachable from the housing, the displaceable contact portion can be exposed by fixing the lead portion to the circuit board and then removing the cap. As described above, the cap functions not only to protect the contact portion before the contact portion is attached to the circuit board, but also to function as a jig for fixing the lead portion to the circuit board. Because it is a cap fitted to the housing that has been made as small as possible, holding the cap especially the lid,
Improve the handling of small electrical connectors.

According to a second aspect of the present invention, there is provided the electrical connector with the cap according to the first aspect, wherein the lid is provided with a hookable projection. Since the electric connector with a cap is small, it is handled in an embossed tape product in which the embossed portion is inserted into the embossed portion of the carrier tape and the embossed portion is closed with the cover tape. When a protrusion that can be hooked is provided as a flange on the lid of the cap, the protrusion is hooked at the entrance of the embossed portion, and the electrical connector with the cap is positioned at a predetermined position of the embossed portion, thereby facilitating removal.

According to a third aspect of the present invention, there is provided the electrical connector with the cap according to the first or second aspect, wherein the upper surface of the lid is formed as a flat surface capable of being held by suction. Since the electric connector with the cap is small, the flat surface on the upper surface of the lid portion of the cap can be sucked and taken out of the embossed portion or conveyed to a predetermined position on the circuit board.

According to a fourth aspect of the present invention, there is provided the electrical connector with the cap according to any one of the first to third aspects, wherein the case portion has four sides, two sides are separated from the other two sides, and the two sides are flexible. Are provided, and engagement portions with the housing are provided on the two side surfaces. According to a fifth aspect of the present invention, there is provided the electrical connector with the cap according to the fourth aspect, wherein the two side surfaces are provided with cutouts reaching the lid. Due to the slit and the cutout added thereto, the two sides of the cap detachable from the housing can be made flexible, and the operation of the engaging portion to the housing can be kept in a good state. it can.

According to a sixth aspect of the present invention, there is provided an electrical connector with a cap according to any one of the first to fifth aspects, wherein the color of the electrical connector is different from the color of the cap. After fixing the leads of the electrical connector to the circuit board, the cap is removed. If the colors of the electrical connector, especially the housing and the cap, are different, the removal error of the cap can be automatically or visually confirmed optically.

According to a seventh aspect of the present invention, there is provided the electrical connector with a cap according to any one of the first to sixth aspects, wherein x is 0.5 mm or less, where x is a displacement of the contact portion in the pressure contact direction.
With this level of pressure contact, the electrical connector must have a full width of 2.
It can be stored in a small size of 4 mm x 4.3 mm in height x 1.7 mm in length (in the case of two arm contacts), but can be easily handled via the cap with respect to the housing.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an electric connector with a cap according to the present invention will be described below with reference to the drawings. First, the structure of the electrical connector to which the cap is applied will be described, and then the electrical connector with the cap will be described. FIG.
FIG. 1 is a view showing a structure of an electric connector 1, and FIG.
1 is a lateral cross-sectional view as viewed from the front, FIG. 1B is a side view, and FIG. 1C is a top view. FIG. 2 shows FIG.
FIG. 4 is a cross-sectional view showing an example of mounting the electrical contact on a circuit board.

The electrical connector 1 shown in FIG. 1 is a minimum unit having two contacts, and includes a housing 2 and two arm contacts 3 arranged to face each other.

Details of the housing 2 are shown in FIG. FIG. 3A is a cross-sectional view taken along the line AA of FIG.
FIG. 3B is a side view, and FIG. 3C is a top view. The housing 2 is preferably molded from an insulating synthetic resin. In FIG. 3A, the housing 2 has one end 1 facing a first circuit board (not shown).
1 and the other end 1 facing a second circuit board (not shown).
2 and a block having side surfaces 13 and 13. As shown in FIG. 3C, two slits 14, 14 are formed from the one end 11 to the other end 12, and are engraved so as to face each other in a staggered manner. The slit 14 shown in FIG.
And a substantially L-shaped portion 14a having a shallow depth 14a and a portion 14b whose depth increases from the side surface 13 toward the back. The deep side of the deep portion 14b is an inclined surface 15 that is inclined so as to widen toward the opening of the other end 12. The inclined surface 15 functions as a restricting portion for a contact portion 29 of the arm contact 3 described later. Slit 14
The shallow portion 14a is opened before reaching the one end 11, and as shown in FIG. 3B, the first press-fitting hole 16 and the second press-fitting hole 17 penetrate on both sides of the extension of the shallow portion 14a. Is provided.

The details of the arm contact 3 are shown in FIG. FIG. 4A shows a top view of an arm contact stamped and pressed from a plate of a conductive material, and FIG. 4B is a cross-sectional view taken along line BB of FIG. 4A. In FIG. 4B, the arm contact 3 includes a lead portion 21 whose tip is bent by 90 °, and a lead portion 21.
Extension portion 22 and lead portions 21 on both sides of the extension portion 22.
The first press-fit piece 23 and the second press-fit piece 24 that are bent 90 ° in the opposite direction to each other and function as press-fit portions, and the first curved portion 2
5, an extension 26, a second bending portion 27, and an extension 28
And a contact portion 29 in order.

The first press-in piece 23 and the second press-in piece 24 have catching portions 23a, 24a for retaining. The first curved portion 25 has two R portions such that the extension portions 22 and 26 are parallel in steps. 2nd bending part 2
7 has one R portion so that the extension portion 26 and the extension portion 28 intersect at 90 °. The contact portion 29 is bent so that the tip becomes an acute angle, protrudes from the extension portion 28, and has a bent portion 29a inward at an angle α with respect to a line parallel to the extension portion 22. The bent portion 29a has an arc-shaped contact portion 29b.
a is pressed against the conductive surface of the second circuit board (not shown).

As shown in FIG. 4A, the arm contact 3 is formed by stamping and pressing a conductive material such as phosphor bronze from a plate, and cut from the plate by cutting the line a and the line b. Separated. The contact portion 29b of the contact portion 29 is preferably subjected to a surface treatment such as gold plating. The arm contact 3 is not limited to the punching process, but may be manufactured by electronic processing or etching.

The combined structure of the housing 2 and the arm contact 3 will be described with reference to FIG. In FIG. 1A, when the first press-fitting piece 23 is pushed into the first press-fitting hole 16 and the second press-fitting piece 24 is further pushed into the second press-fitting hole 17, the extension 22 extends the bottom of the shallow portion 14a of the slit. The arm contact 3 is fixed to the housing 2 along the line without any gap. The first curved portion 25, the extended portion 26, the second curved portion 27, and the extended portion 28 are accommodated in the shallow portion 14a and the deep portion 14b of the slit. The lead portion 21 slightly protrudes from the one end 11, and the contact portion 29 protrudes from the other end 12 by the height H <b> 1. The contact portion 29 projects so that the bent portion 29a faces outward, and the inclined surface 15 functioning as a limiting portion and the outward portion of the bent portion 29a are substantially parallel to each other with a dimension ε therebetween. The distance between the pair of contact portions 29 of the pair of arm contacts 3 arranged in opposite directions before the pressure contact is L1.
It is.

Referring to FIG. 2, the mounting state of the electrical connector 1 will be described. Reference numeral 5 denotes a first circuit board such as a printed board, and reference numeral 6 denotes a second circuit board such as a printed board. At least two leads 21 and 21 are mounted on predetermined portions of the first circuit board 5, and the electrical connector 1 is fixed to the first circuit board 5 by brazing 31. The first circuit board 5 is pushed toward the second circuit board 6. Contact part 2
9 is pressed against the second circuit board 6, the arm contact 3 is bent by the second curved portion 27 and the like, and the contact portion 29 enters the deep portion 14b of the slit and is displaced outward, that is, toward the depth side of the slit 14. . The bent portion 29a of the contact portion 29 hits the inclined surface, that is, the regulating portion 15, and the contact portion 2
The interval L2 between 9, 29 is limited so as not to be further enlarged.

When the contacts 29, 29 are further pushed toward the second circuit board 6, the bent portion 29a enters the deep portion 14b of the slit along the inclined surface, that is, the regulating portion 15, but the bent portions 29a are not pushed. The interval L2 hardly spreads. The bent portion 29a strongly hits the inclined surface spreading toward the other end 12, that is, the regulating portion 15, and the urging force in the projecting direction of the contact portions 29, 29 acts. With this urging force, the contact pressure of the contacts 29, 29 against the conductive surface 6a of the second circuit board 6 is maintained at a predetermined level or more. Also, by increasing the interval between the contact portions 29, 29 from L1 to L2, the contact portion 2
Wiping of the conductive surface 6a by 9, 29 is also ensured.

The arm connector 3 is formed from a plate having a thickness of 0.15 mm, and the distance L1 between the contact portions 29, 29 is 1.2 mm.
It is possible to form the small-sized electrical connector 1 in which the projecting height H1 of the contact portions 29, 29 is 0.5 mm. When the pressure contact amount of H1-H2 is 0.3-0.4 mm, the maximum value of the interval L2 between the contact portions 29, 29 after the pressure contact can be suppressed to within 1.5 mm. In this case, H1
Assuming that the displacement of −H2 in the pressure contact direction is x, the displacement of L2−L1 is not more than x / 2, the displacement of the contact portions 29, 29 is appropriate, and the protrusion height H1 is within 0.6 mm. Small electrical connector 1. Also, the overall size of the electrical connector 1 including the housing 2 having the two arm connectors 3 is set to a total width of 2.
It can be a small size of 4 mm × height 4.3 mm × thickness 1.7 mm.

Next, the small-sized electrical connector 1
The electrical connector 1 to which the cap 4 covering the displaceable contact portions 29, 29 is attached will be described with reference to FIG. FIG.
5A is a lateral cross-sectional view of the electric connector with a cap as viewed from the front, and FIG. 5B is a side view thereof.
(C) is a top view thereof.

The cap 4 is a contact portion 2 of the electrical connector 1.
Case part 41 detachably fitted from sides of 9 and 29
And a lid part 42 covering the top of the case part 41.

The details of the cap 4 will be described with reference to FIG.
6A is a cross-sectional view in the lateral direction as viewed from the front of the cap, FIG. 6B is a side view thereof, and FIG. 6C is a top view thereof.

In FIG. 6C, the lid 42 is formed in an H-shaped plane when viewed from above. In FIG. 6A, a case portion 41 extends downward integrally from the lower surface of the lid portion 42, and forms a pair of first side plates forming two side surfaces corresponding to the width direction of the electrical connector 1. 43, 43
And a pair of second side plates 44 forming the remaining two side surfaces corresponding to the thickness direction of the electrical connector 1.

Slits 45 are provided at four locations on the boundary between the pair of first side plates 43, 43 and the pair of second side plates 44, 44. The housing 2 is located below the first side plates 43, 43.
Engagement recesses 18 provided on the side surfaces in the width direction of FIG.
(See FIG. 2). An inclined surface 47 for receiving the housing 2 is formed further below the engagement convex portion 46. As shown in FIG. 6C, a notch 48 extending from the lid 42 to the engaging projection 46 is provided in the center of the first side plates 43, 43. As shown in FIG. 6B, a pair of second side plates 44, 4
Numeral 4 covers a side surface of the housing 2 in the thickness direction, and an inclined surface 49 is formed at a lower end thereof.

In FIG. 6C, the four H-shaped tips of the lid portion 42 are formed as projecting portions 50 projecting outward from the case portion 41. The protruding portion 50 allows the lid portion 42
Is a flange which is provided to the case portion 41 and can be hooked. The upper surface of the lid portion 42 is entirely formed as a flat plane. As shown in FIG. 6A, the other end 12 of the housing 2 is located at two corners on the diagonal of the four corners inside the case 41 below the lid 42.
A stopper 51 is provided to project downward. As shown in FIG. 6C, the stopper 51 is disposed at a position where the staggered contact portions 29 do not interfere with each other.

Referring to FIG. 5, the electric connector 1 with the cap 4 will be described. In FIG. 5A, the cap 4 is guided by the inclined surfaces 47 and 49 below the case portion 41 and can be covered from the other end 12 of the housing 2. There is an engagement projection 46 below the first side plates 43, 43, and the first side plates 43, 43 tend to spread outward. However, the slits 45 and the notches 48 make the first side plates 43, 43 elastic. Can be transformed. Therefore, when the cap 4 is pushed in from the other end 12 of the housing 2, the engagement protrusion 46 of the cap 4 is engaged with the engagement recess 18 of the housing 2, and the lower surface of the stopper 51 contacts the other end 12 of the housing 2. Pushing is stopped. When the cap 4 is lifted from the housing 2, the engagement recess 18 of the housing 2 and the cap 4
Is disengaged from the engagement projection 46, and the cap 4 can be removed. Thus, the cap 4 is detachable from the other end 12 of the housing 2.

By providing the electric connector 1 with the cap 4, the small-sized electric connector 1 can be handled by being held by the cap 4 when it is attached to the first circuit board 5. In addition, the contact portions 29, which are movable portions of the small-sized electrical connector 1, can be mechanically protected.

The electrical connector 1 with the cap 4 can be automatically handled as an embossed taping product 60 as shown in FIGS. FIG.
The embossed taping product 60 is formed by covering a carrier tape 61 in which a large number of embossed portions 63 accommodating the electric connector 1 with the cap 4 are arranged at predetermined intervals with a cover tape 62.

As shown in FIGS. 8 and 9, the embossed portion 6
Reference numeral 3 denotes a cylindrical portion 64 in which the case portion 41 of the cap 4 and the main body of the electrical connector 1 enter, and a plate portion 65 on which the lid portion 42 of the cap 4 is placed. The plate 65 has a margin in one direction of the lid 42, but has a sufficient width in the other direction of the lid 42. As shown in FIG. 10, the embossed taping product 60 is shipped wound on a reel 66.

At the assembly factory, as shown in FIG.
6, the embossed taping product 60 is pulled out and used. FIG. 11 shows a process of attaching the electric connector 1 with the cap 4.

In FIG. 11A, the carrier tape 6
1, the cover tape 62 is peeled off, and the suction plate 71 is sucked to the flat surface of the ceiling of the lid 42 of the cap 4 placed on the plate 65. In the electrical connector 1 with the cap 4 in the emboss of the carrier tape 61, the cap 4 is
Is positioned relative to the carrier tape 61 by being inserted into the inside. The electric connector 1 is pulled out of the embossed portion 64 together with the cap 4 by raising the robot arm 72 having the suction plate 71 attached to the tip.

In FIG. 11B, the robot arm 7
By the movement of 2, the electric connector 1 attached to the cap 4 is placed at a predetermined position on the first circuit board 5. The lead portion 21 of the electrical connector 1 is fixed to the first circuit board 5 by brazing 31 in a state where electrical conduction is possible.

When the robot arm 72 moves upward,
The cap 4 is detached from the electric connector 1, and the cap 4 is carried out together with the robot arm 72. At this time, if the color of the housing 2 of the electrical connector 1 is set to, for example, a black system and the color of the cap 4 is set to a white system so as to be different in color, the electric connector 1 with the cap 4 left is easily visually or automatically detected. Can be determined.

In FIG. 11C, the first circuit board 5 to which the electric connector 1 is fixed is moved toward the second circuit board 6. The contact portions 29, 29 of the electrical connector 1 are pressed against the conductive surfaces 6a, 6a while wiping the conductive surfaces 6a, 6a of the second circuit board outward.

The embodiment is not limited to the above, and the electric connector 1 may be modified and implemented as follows, for example. (1) As shown in FIG.
When the arm connector 103 is housed and fixed in 14,
The multi-curved arm connector 103 in which the contact portion 129 is located on the entrance side of the slit 114 is provided, and another block having an inclined surface 149 facing the contact portion 129 at the entrance of the slit 114 is restricted by fitting the housing 102. The electrical connector 101 forming the part 140 may be used.
Although the housing 102 is made up of two parts in which the restricting portion 140 is fitted, the arm connector 103 can be made more curved than that shown in FIG. 1, and the bending amount and bending direction at the time of press-contacting can be easily made appropriate.

(2) In FIG. 1, the slits 14 of the housing 2 are not limited to the staggered arrangement of only two
Is lengthened in the thickness direction, and by arranging a large number of slits 14 in a staggered manner, a multi-contact electrical connector 1 in which three or more arm connectors 3 are accommodated in the slits 14 can be obtained. In addition, the three or more arm connectors 3 can be densely arranged in the thickness direction by increasing the width dimension of the housing 2 so that the slits 14 of the housing 2 are opposed to each other instead of being staggered.

(3) The lead portion 21 is not limited to an L-shaped bent portion, but may be a hole-through pin. When the pin is used as a lead, the arm connector may be fixed to the housing by adopting a fixing method in which the base of the pin is inserted into a hole provided in the housing.

The cap 4 of the electrical connector 1 may be modified as follows, for example. (4) The shape of the protruding portion 50 of the lid portion 42 of the cap 4 is not limited to the shape protruding from the case portion 42 in an H shape.
A square flange protruding substantially evenly around the periphery of the case 2 or a circular flange contacting the periphery of the case portion 42 may be used. Further, the entire upper surface of the lid portion 42 is not limited to a flat surface, and only the center of the lid portion 42 may be a disk-shaped flat surface.

(5) The concave / convex relationship between the engaging concave portion 18 of the housing 2 and the engaging convex portion 46 of the cap 4 can be reversed. In this case, since the elasticity of the first side plate 43 of the cap 4 is not so required, the slit 45 and the notch 48 can be omitted. (6) Further, the electric connector 1 to which the cap 4 can be applied is not limited to the electric connector 1 in which the arm contact is accommodated in the slit of the housing, but is held by an insulating housing.
The present invention is applicable to various types of compression-type electrical connectors including a conductive arm contact having a lead portion protruding from one end of the housing and a displaceable contact portion protruding from the other end of the housing.

[0043]

According to the first to seventh aspects of the present invention, even a compression-type electrical connector having a small size covers a displaceable contact portion, but a lead portion. By being integrated with the exposed cap, the entire part can be held by the cap part, and can be adapted to automated mounting and the like. In addition, by using the electric connector with the cap, even if the electric connector has a small size, it can be easily formed into an embossed taping product. Further, the contact portion can be protected until immediately before the displaceable contact portion is pressed against the circuit board.

[Brief description of the drawings]

FIG. 1 is a view showing a structure of an electric connector, and FIG.
FIG. 1A is a lateral cross-sectional view as viewed from the front, and FIG.
FIG. 1B is a side view thereof, and FIG. 1C is a top view thereof.

FIG. 2 is a side cross-sectional view showing an example of attaching an electric contact to a circuit board.

FIG. 3 is a view showing a structure of a housing, and FIG.
3B is a cross-sectional view taken along line AA in FIG. 3B, FIG. 3B is a side view, and FIG. 3C is a top view.

FIG. 4 is a view showing a structure of an arm contact;
4A is a top view of the stamped and formed arm contact, and FIG. 4B is a cross-sectional view taken along line BB of FIG. 4A.

FIG. 5 is a view showing the structure of the electric connector with a cap according to the present invention, wherein FIG. 5 (a) is a lateral cross-sectional view as viewed from the front, and FIG. 5 (b) is a side view thereof. , FIG.
(C) is a top view thereof.

6A and 6B are views showing the structure of the cap, FIG. 6A is a cross-sectional view as viewed from the front, FIG. 6B is a side view, and FIG. 6C is a top view.

FIG. 7 is a top view showing an example of storing a taped electrical connector with a cap.

FIG. 8 is a sectional view taken along line CC of FIG. 7;

FIG. 9 is a sectional view taken along line DD of FIG. 7;

FIG. 10 is a side view showing a state in which the taped electric connector with a cap is wound around a reel.

FIG. 11 is a diagram showing a process of attaching the taped electrical connector with a cap to a circuit board.

FIG. 12 is a lateral cross-sectional view of another electrical connector applied to the capped electrical connector of the present invention as viewed from the front.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connector 2 Housing 3 Arm connector 4 Cap 14 Slot 21 Lead part 29 Contact part 41 Case part 42 Cover part 45 Slit 48 Notch

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Akihiko Onchi 3-9-23 Takeshima, Nishiyodogawa-ku, Osaka-shi, Osaka CC26 DD24 DD25 EE10 EE29 FF01 HH01 HH18 5E087 EE03 EE07 FF06 FF19 GG06 LL02 LL17 MM02 RR11 RR25 RR27 RR42

Claims (7)

[Claims] 1. An electrically conductive arm contact having an insulating housing, a lead portion held by the housing and protruding from one end of the housing, and a displaceable contact portion protruding from the other end of the housing. An electric connector provided with a cap with a cap covering the contact portion attached thereto, wherein the cap is
A connector with a cap, which is an integrally molded product of a case portion detachably fitted to the housing from the other end side and a lid portion covering a top of the case portion. 2. The connector with a cap according to claim 1, wherein the cover has a hookable projection. 3. The electrical connector with a cap according to claim 1, wherein an upper surface of the lid is formed as a flat surface that can be held by suction. 4. The case portion has four side surfaces, and two side surfaces are separated from the other two side surfaces, and slits are provided on the two side surfaces to provide flexibility, and the two side surfaces are engaged with the housing. The electrical connector with a cap according to any one of claims 1 to 3, further comprising: 5. The electric connector with a cap according to claim 4, wherein cutouts reaching the lid are provided on the two side surfaces. 6. The electric connector with a cap according to claim 1, wherein the color of the electric connector is different from the color of the cap. 7. The electrical connector according to claim 1, wherein x is 0.5 mm or less, where x is a displacement of the contact portion in a pressure contact direction.