JP2000171724A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector in which no finger touches contact electrodes while the connector is attached or detached, the occurrence of destruction of electric parts such as a CCD is prevented and protection is made for the electric contact sections. SOLUTION: The connector is made of a connector main body 1 and a printed circuit board 14 which is provided on the body 1 and has contact electrodes that are electric contact sections to be connected to the connector of an other side. A protective cover 21 is provided to the body 1 so that the cover 21 is retracted from contact electrodes 18a and 18b at the time of connecting to the other side connector and automatically covers the electrodes 18a and 18b while no connection is made.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup apparatus for an endoscope having an image pickup function such as a CCD or the like, which is provided at a distal end of a cable connected to the endoscope and electrically connected to a control unit. Electrical connector.

[0002]

2. Description of the Related Art An endoscope image pickup apparatus or endoscope having an image pickup function such as a CCD has a cable led out from an operation section thereof, and an electrical connector is provided at a distal end of the cable. The electrical connector is connected to a control unit that drives and controls the CCD and the like.

[0003] The electrical connector has a contact electrode connected to a power supply line and a signal line, and the receptacle of the control unit is provided with an electrical contact corresponding to the contact electrode. Then, by inserting the electrical connector into the receptacle, the contact electrode and the electrical contact come into contact, and the control unit and the endoscope are electrically connected.

Conventionally, this type of electrical connector is known, for example, from Japanese Patent Application Laid-Open No. 6-251828. In this electrical connector, a printed circuit board having a contact electrode is provided on a plug case made of an insulating material, and an electromagnetic shielding contact is provided at a position farther from the contact electrode as viewed from the insertion side of the printed circuit board. The receptacle is provided with an electrical contact that contacts the contact electrode and an electromagnetic shielding contact that contacts the electromagnetic shielding contact.

[0005]

However, the device disclosed in Japanese Patent Application Laid-Open No. 6-251828 is sufficiently electromagnetically shielded by an electromagnetic shielding contact and an electromagnetic shielding contact. It is in a state of being exposed protruding from the case. Therefore,
There is a problem that static electricity is generated when the contact electrode of the electrical connector is touched, and this static electricity destroys electric components such as a CCD.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric connector which can prevent electric parts such as a CCD from being damaged.

[0007]

In order to achieve the above object, the present invention has a first aspect in which a connector body and an electrical contact portion provided on the connector body and connected to a mating connector are provided. In the electrical connector, the connector body is provided with a protective cover that covers the electrical contact portion when the connector body is not connected to the mating connector.

According to a second aspect of the present invention, there is provided an electrical connector comprising a connector main body and an electrical contact portion provided on the connector main body and connected to a mating connector, wherein the connector main body is connected to the mating connector. A protective cover is provided which is retracted from the electrical contact portion and automatically covers the electrical contact portion when not connected.

According to the above configuration, the electric contact portion is usually covered with the protective cover, and the finger does not touch the electric contact portion, and the protective cover is retracted from the electric contact portion during connection. Thus, the electrical contact portion is connected to the mating connector.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show a first embodiment, and FIG.
2 is a plan view showing a state in which the protective cover of the electrical connector is protruded, FIG. 2 is a plan view showing a state in which the protective cover of the electrical connector is retracted, FIG. 3 is a side view of FIG. 2, and FIG. It is sectional drawing which follows a line.

As shown in FIGS. 1 to 4, a connector body 1 formed of an electrically insulating material such as a synthetic resin material.
Has a flat rectangular shape, and a tapered portion 1a is provided at a rear end portion. The cable 2 is inserted through the tapered portion 1a.

The upper and lower surfaces of the connector main body 1 are provided with concave portions 1b and 1c, and a mounting portion 3 having a step is provided at the base end side of the concave portions 1b and 1c. A cover 4 made of an electrically insulating material such as a synthetic resin material is attached to the mounting portion 3 with screws 5 so as to cover the concave portions 1b and 1c. A gap 6 is provided.

A flat rectangular cavity 7 having an opening 7a opening to the front is provided inside the connector main body 1.
At the innermost portion inside the hollow portion 7, metal clamp members 8a and 8b which are vertically divided into two are provided. The clamp members 8a and 8b tighten the overall shield portion 2a of the cable 2 with the tightening screw 9, thereby making the overall shield portion 2a and the clamp members 8a and 8b electrically conductive, and connecting the cable 2 and the connector body 1 to each other. Are connected mechanically.

Inside the hollow portion 7 of the connector main body 1, the clamp members 8a and 8b are provided with a shield plate 10 made of a metal plate protruding forward. The base ends of these shield plates 10 are connected to the clamp members 8a and 8b by the tightening screws 9, and the distal ends are provided with spring contacts 10a.

Further, an intermediate portion in the longitudinal direction of a printed circuit board 14 having a three-layered structure composed of a first layer 11, a second layer 12, and a third layer 13 is inserted and supported in the opening 7a of the cavity 7. .

On the upper surface of the first layer 11 and on the lower surface of the third layer 13, contact electrodes 18 and 19 forming an electric connection portion are provided on the front end side and the rear end side, and an electric shield 16 is provided at an intermediate portion. It is provided by printed wiring. The electrical shield 16 is in contact with a spring contact 10 a of the shield plate 10. Printed wiring 17 is provided on the upper and lower surfaces of the second layer 12 over the front and back.

Further, contact electrodes 18 and 19 forming electrical contact portions by printed wiring are provided on the upper and lower surfaces on the front end side and the rear end side of the second layer 12. The front contact electrode 18 includes one power supply contact electrode 18a and a plurality of signal contact electrodes 18b, and is arranged in parallel along the longitudinal direction of the second layer 12. Further, the power supply contact electrode 18a is slightly longer than the signal contact electrode 18b and extends to the front end side of the second layer 12 so as to be connected first, but both electrodes 18a and 18b are predetermined from the front end surface. Are provided from a position separated by a distance of.

The base ends of the power contact electrode 18a and the signal contact electrode 18b are connected to the printed wiring 17 through through holes 15a. The rear contact electrode 19 is connected to the printed wiring 17 through a through hole 15b, and a lead wire 20 extending from the cable 2 is connected to the contact electrode 19 by soldering. The power electrode among the contact electrodes 19 on the rear end side is connected to the electric seal 16 by a bypass capacitor (not shown).

Further, a protective cover 21 is provided in the gap 6 of the connector main body 1. The protective cover 21 is formed in an approximately rectangular cylindrical shape with an electrically insulating material such as a synthetic resin material, and is capable of moving forward and backward with respect to the connector main body 1. The entire circumference of the substrate 14 can be covered.

Further, a coil spring 22 for urging the protective cover 21 in a forward (projecting) direction is provided in the gap 6.
And a slit 23 is provided on the upper surface of the protective cover 21 in the front-rear direction. A pin 24 protruding from the cover 4 of the connector body 1 is inserted into the slit 23, and guides and regulates the stroke when the protection cover 21 advances and retreats. Further, the upper surface of the distal end portion of the protective cover 21 is bent downward and the lower surface thereof is bent upward at a right angle, so that the opening width of the opening 21a of the protective cover 21 is reduced to a size where a finger cannot be inserted, and at the same time, the contact portion 21b is reduced. Has formed.

According to the electric connector configured as described above, the protective cover 21 is usually provided with the coil spring 22.
1 and 4, the protective cover 21 projects forward as shown in FIG. 1 and FIG. At this time, since the pin 24 is in contact with the end of the slit 23 to regulate the stroke, the protection cover 2
1 covers the entire printed circuit board 14. Therefore, the fingers do not touch the power contact electrode 18a and the signal contact electrode 18b of the printed circuit board 14 during handling, and C
It is possible to prevent the destruction of electric components such as a CD and to protect the printed circuit board 14.

In order to connect the electrical connector to the mating connector (not shown) of the control unit, when the printed circuit board 14 covered with the protective cover 21 is inserted into the mating connector by holding the connector body 1, first,
The contact portion 21b at the front end of the protective cover 21 contacts the peripheral edge of the mating connector. When the connector body 1 is further pushed in the insertion direction, the coil spring 22 is compressed, and the protective cover 21 retreats and is housed in the gap 6. Accordingly, as shown in FIGS. 2 and 3, the power supply contact electrode 18a and the signal contact electrode 18b of the printed circuit board 14 are exposed and come into contact with the contact electrode of the mating connector to be in an electrically conductive state.

When the electrical connector is disconnected from the mating connector by holding the connector body 1 and pulling it out toward the user, the protective cover 21 moves forward (projects) by the restoring force of the coil spring 22 and the printed circuit board 14 is moved. In order to cover the printed circuit board 14, the power supply contact electrode 18
a, without touching the signal contact electrode 18b,
And other electrical components can be prevented from being destroyed.

FIGS. 5 and 6 show a second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. FIG. 5 is a vertical side view of the electrical connector, and FIG. 6 is a vertical side view of the connection state between the electrical connector and the mating connector. A support frame 31 fixed to the connector body 1 by screws 30 is provided in the hollow portion 7 of the connector body 1. A rear end of a printed circuit board 32 constituting an electrical contact portion is fixed to the support frame 31, and a front end of the printed circuit board 32 penetrates through the opening 7 a of the cavity 7 and projects forward of the connector body 1. .

On the upper and lower surfaces of the printed circuit board 32, contact electrodes 33 for power supply and signal are printed and wired.
This contact electrode 33 is soldered to the lead wire 20 derived from the cable 2.

Further, a protective cover 34 is provided in the opening 7a of the connector body 1. This protective cover 34
Is formed in an approximately rectangular cylindrical shape with an electrically insulating material such as a synthetic resin material, and is movable back and forth with respect to the connector main body 1. The circumference can be covered.

Further, a coil spring 35 for urging the protective cover 34 in the forward (projecting) direction is provided in the cavity 7.
Are provided on the upper surface and the lower surface of the protective cover 34 in the front-rear direction. A pin 37 protruding from the connector main body 1 is inserted into the slit 36, and regulates a guide and a stroke when the protection cover 34 advances and retreats. Further, an electrical shield 38 is provided on the outer peripheral surface of the protective cover 34 by vapor deposition or the like, and the electrical shield 38 is in contact with the spring contact 10 a of the shield plate 10. The electrodes are connected in the order of shield, power supply, and other signals.

The mating connector 40 connected to the electrical connector configured as described above is provided in a control unit (not shown).
Inside the housing 41, a rectangular cylindrical protective cover pressing member 42 facing the front end surface of the protective cover 34 is provided. Inside the protective cover pressing member 42, a pair of upper and lower contact plates 4 that come into contact with the contact electrodes 33 of the printed circuit board 32.
3 is provided, and a shield plate 44 which is in contact with the electric shield 38 is provided outside. The contact plate 43 is electrically connected to a control board (not shown) built in the control unit, and the shield plate 44 is grounded to a shield case of the control board. The protective cover 34
May be made of metal.

According to the electric connector configured as described above, the protective cover 34 is usually provided with the coil spring 35.
5, the protective cover 34 projects forward as shown in FIG. At this time, since the pin 37 is in contact with the end of the slit 36 and the stroke is regulated, the entire printed circuit board 32 is covered by the protective cover 34. Therefore, the fingers do not touch the power supply and signal contact electrodes 33 of the printed circuit board 32 during handling, so that it is possible to prevent electric components such as CCDs from being destroyed and to protect the printed circuit board 32.

In order to connect the electrical connector to the mating connector 40 of the control unit, the connector body 1
When the printed circuit board 32 covered with the protective cover 34 is inserted into the mating connector 40, the front end face of the protective cover 34 first contacts the protective cover pressing member 42 of the mating connector 40. When the connector body 1 is further pushed in the insertion direction, the coil spring 35 is compressed, and the protective cover 34 retreats and is housed in the cavity 7. Therefore, as shown in FIG. 6, the power supply and signal contact electrodes 33 of the printed circuit board 32 are exposed and come into contact with the contact plate 43 of the mating connector 40 to be in an electrically conductive state, and at the same time, are electrically shielded. 38 contacts the shield plate 44.

The electric connector is connected to the mating connector 4.
When the connector body 1 is pulled out to the near side in order to separate it from the front, the protective cover 34 moves forward (projects) by the restoring force of the coil spring 35 to cover the printed circuit board 32. Also, it can be safely operated without touching the signal contact electrode 33.

FIGS. 7 and 8 show a third embodiment, in which the same components as those in the first embodiment have the same reference numerals and description thereof will be omitted. FIG. 7 is a vertical sectional side view of the distal end portion of the electrical connector, and FIG.

A rectangular tubular printed circuit board 45 constituting an electrical contact portion is fixed to the cavity 7 of the connector main body 1 so as to protrude forward from the connector main body 1.

Power supply and signal contact electrodes 47 are printed on inner surfaces of the printed circuit board 45 facing each other, and an electric shield 48 is printed on the outer surface.

Further, a support member 49 is fixed near the front end of the connector main body 1 and inside the printed board 45. The support member 49 is provided with a protective cover 50 for covering the contact electrodes 47 of the printed board 45. Have been. The protective cover 50 is made of an electrically insulating material such as a synthetic resin material, and has a shaft 50a at the rear end thereof which is inserted into the support member 49 so as to be able to advance and retreat. Further, a coil spring 51 that urges the protective cover 50 in a direction protruding forward is fitted to the shaft 50a.

Therefore, the protective cover 50 is connected to the connector body 1.
Can move back and forth with respect to
Of the printed circuit board 4 during the forward movement.
The fifth contact electrode 47 can be covered.

The mating connector 52 connected to the electrical connector configured as described above is provided in a control unit (not shown).
Inside the housing 53, a protective cover pressing member 54 facing the front end surface of the protective cover 50 is provided. The printed circuit board 4 is provided on the upper and lower surfaces of the protective cover pressing member 54.
A pair of upper and lower contact plates 55 that are in contact with the five contact electrodes 47 are provided. In addition, a shield plate 56 that contacts the electric shield 48 is provided on the inner surface of the housing 53. The contact plate 55 is electrically connected to a control board (not shown) built in the control unit, and the shield plate 56 is grounded to a shield case of the control board.

According to the electric connector configured as described above, the protective cover 50 is usually provided with the coil spring 51.
7, the protective cover 50 protrudes forward as shown in FIG. Accordingly, the contact electrodes 47 of the printed circuit board 45 are covered with the protective cover 50, and the fingers do not touch the power and signal contact electrodes 47 of the printed circuit board 45 during handling.
It is possible to prevent the destruction of electric components such as a CD and to protect the printed circuit board 45.

In order to connect the electrical connector to the mating connector 52 of the control unit, the connector body 1
When the printed circuit board 45 is inserted into the mating connector 52 by holding the connector, first, the front end face of the protective cover 50 comes into contact with the protective cover pressing member 54 of the mating connector 52. When the connector body 1 is further pushed in the insertion direction, the coil spring 51 is compressed, and the protective cover 50 moves backward. Therefore, as shown in FIG. 8, the power supply and signal contact electrodes 47 of the printed circuit board 45 are exposed and come into contact with the contact plate 55 of the mating connector 52 to be in an electrically conductive state, and at the same time, the electric shield is provided. 48 contacts the shield plate 56.

The electrical connector is connected to the mating connector 5.
When the connector body 1 is pulled out to the front side in order to separate it from the connector body 2, the protective cover 50 advances (projects) by the restoring force of the coil spring 51 and covers the contact electrodes 47 of the printed circuit board 45. 45 does not touch the power supply and signal contact electrodes 47,
Destruction of electric components such as CDs can be prevented.

FIGS. 9 and 10 show a fourth embodiment,
The same components as those of the third embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 9 is a perspective view of the electrical connector, and FIG. 10 is a vertical sectional side view of a tip portion of the electrical connector. In this embodiment, a protective cover 60 made of rubber is used instead of the protective cover 50 made of the synthetic resin material of the third embodiment. The protective cover 60 is tightly fitted into the opening 45a of the printed circuit board 45 by elasticity, so that the connector main body 1 is kept watertight.

The protection cover 60 is integrally provided with a protruding portion 61 protruding upward, and this protruding portion 61 is provided on a printed circuit board 45 in a slit 62 provided in the front-rear direction.
Has been inserted.

Therefore, by moving the protruding portion 61 forward along the slit 62 by finger operation, the protective cover 60 advances and faces the contact electrode 47 so as to face the contact electrode 47.
Can be covered, and the opening 45a of the printed circuit board 45 can be closed in a watertight manner.

FIG. 11 shows a fifth embodiment, in which the same components as those of the fourth embodiment are denoted by the same reference numerals and description thereof is omitted. FIG. 11 is a vertical sectional side view of the distal end portion of the electrical connector. In the present embodiment, the rubber protective cover 60 shown in the fourth embodiment is urged forward by the coil spring 51 similarly to the third embodiment, and the other configuration is the same as the third embodiment. Since the operation is the same as that of the embodiment and the operation is also the same, the description is omitted.

In each of the above embodiments, the description has been given of the electrical connector in which the connector main body has a flat rectangular tube shape and the printed circuit board has a rectangular tube shape or a flat plate shape. The connector body is cylindrical and the printed circuit board is also provided with three-dimensional wiring on an electrically insulating material such as a synthetic resin material. The same operation and effect can be obtained even with the above.

According to the above-described embodiment, the following configuration is obtained.

(Supplementary Note 1) In an electrical connector including a connector main body and an electric contact portion provided on the connector main body and connected to a mating connector, when the connector main body is not connected to the mating connector. An electrical connector having a protective cover for covering the electrical contact portion.

(Supplementary Note 2) An electrical connector comprising a connector body and an electrical contact portion provided on the connector body and connected to a mating connector, wherein the connector body is connected to the mating connector when the mating connector is connected to the mating connector. An electrical connector comprising a protective cover that is retracted from the electrical contact portion and automatically covers the electrical contact portion when not connected.

(Supplementary note 3) The electrical connector according to supplementary note 1 or 2, wherein the electrical contact portion is a plate-shaped printed circuit board, and a contact electrode and an electrical shield are provided on an outer surface.

(Supplementary Note 4) The electrical contact portion is formed by applying a three-dimensional wiring to a plate-like electrically insulating material, and is provided with a contact electrode and an electrical shield on an outer surface. Or the electrical connector according to 2.

(Supplementary Note 5) The electric contact portion is a cylindrical electric insulating material provided with a three-dimensional wiring, a contact electrode is provided on an inner surface, and an electric shield is provided on an outer surface. 3. The electrical connector according to claim 1 or 2, wherein

(Supplementary Note 6) The supplementary note 1 or 2, wherein the protective cover is formed in a tubular shape so as to cover the entire plate-shaped printed circuit board, and is provided to be able to advance and retreat with respect to the connector body. Electrical connector as described.

(Supplementary note 7) The electric appliance according to Supplementary note 1 or 2, wherein the protective cover is provided so as to be able to advance and retreat inside the printed board so as to cover a contact electrode on an inner surface of the tubular printed board. Connector.

(Supplementary note 8) The electrical connector according to supplementary note 6, wherein the protective cover is urged forward by a coil spring in a protruding direction.

(Supplementary note 9) The electrical connector according to supplementary note 7, wherein the protective cover is urged by a coil spring in a direction to cover the contact electrode.

(Supplementary note 10) The electrical connector according to supplementary note 7 or 9, wherein the protective cover is made of rubber and can close an opening of the printed circuit board in a watertight manner.

[0058]

As described above, according to the first and second aspects of the present invention, the connector body is provided with the protective cover for covering the electrical contact portion when the connector body is not connected to the mating connector. In this case, the fingers do not touch the contact electrodes, so that it is possible to prevent the destruction of electric components such as the CCD and to protect the electric contact portions. Further, there is an effect that the structure is simple and can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention in a state in which a protective cover of an electrical connector is advanced.

FIG. 2 is a plan view showing the same embodiment, in a state where a protective cover of the electrical connector is retracted.

FIG. 3 shows the same embodiment, and is a side view of FIG. 2;

FIG. 4 is a longitudinal sectional side view showing the embodiment, taken along line AA of FIG. 1;

FIG. 5 is a vertical sectional side view of an electrical connector according to a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional side view showing the same embodiment, in a state where an electric connector is connected to a mating connector.

FIG. 7 is a vertical sectional side view of a distal end portion of an electrical connector according to a third embodiment of the present invention.

FIG. 8 is a longitudinal sectional side view showing the same embodiment, with an electrical connector connected to a mating connector.

FIG. 9 is a perspective view of an electrical connector according to a fourth embodiment of the present invention.

FIG. 10 is a longitudinal sectional side view of the distal end portion of the electrical connector according to the embodiment.

FIG. 11 is a vertical sectional side view of a distal end portion of an electrical connector according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Connector body 14 ... Printed circuit board (electric contact part) 18a ... Power supply contact electrode 18b ... Signal contact electrode 21 ... Protective cover

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 20, 1999 (1999.1.2
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

The front end side of the contact electrode 18 is composed of a single power supply contact electrodes 18a and a plurality of signal contact electrode 18b, are disposed parallel to the longitudinal direction of the first layer 11. Further, the power contact electrode 18a is a signal contact electrode 1
8b, which is slightly longer than the first electrodes 11a and 18b.
Is provided from a position separated by a predetermined distance from the front end surface.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

The base ends of the power contact electrode 18a and the signal contact electrode 18b are connected to the printed wiring 17 through through holes 15a. The rear contact electrode 19 is connected to the printed wiring 17 through a through hole 15b, and a lead wire 20 extending from the cable 2 is connected to the contact electrode 19 by soldering. The power electrode among the contact electrodes 19 on the rear end side is connected to the electric shield 16 by a bypass capacitor (not shown).

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0032

[Correction method] Change

[Correction contents]

The electric connector is connected to the mating connector 4.
When the connector body 1 is pulled out to the near side in order to separate it from the front, the protective cover 34 moves forward (projects) by the restoring force of the coil spring 35 to cover the printed circuit board 32. And without touching the signal contact electrode 33, the electric part such as CCD
Destruction of the product can be prevented. In addition, connection of each electrode
Are connected in the order of shield, power, and other signals.
You.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

The mating connector 52 to be connected to the configured electrical connectors as described above, provided in the control unit (not shown), the mating connector 52
Inside the housing 53, a protective cover pressing member 54 facing the front end surface of the protective cover 50 is provided. The printed circuit board 4 is provided on the upper and lower surfaces of the protective cover pressing member 54.
A pair of upper and lower contact plates 55 that are in contact with the five contact electrodes 47 are provided. In addition, a shield plate 56 that contacts the electric shield 48 is provided on the inner surface of the housing 53. The contact plate 55 is electrically connected to a control board (not shown) built in the control unit, and the shield plate 56 is grounded to a shield case of the control board.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Katsuyuki Saito, Inventor 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industrial Co., Ltd. (72) Akihiko Mochida 2-43-2, Hatagaya, Shibuya-ku, Tokyo Within Olympus Optical Co., Ltd. (72) Kotaro Ogasawara, Inventor 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Nobuaki Yasui, 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. F-term (reference) 2H040 BA00 DA00 DA36 GA02 5E023 AA04 BB01 CC04 EE02 FF07 GG09 HH11 5E087 EE14 FF04 GG13 JJ07 KK01 LL22 PP01 QQ06 RR11

Claims (2)

[Claims] 1. An electrical connector comprising: a connector main body; and an electric contact portion provided on the connector main body and connected to a mating connector, wherein the electric power is supplied when the connector main body is not connected to the mating connector. An electrical connector comprising a protective cover for covering a contact portion. 2. An electrical connector comprising: a connector main body; and an electrical contact portion provided on the connector main body and connected to a mating connector, wherein the electrical connection is established when the connector main body is connected to the mating connector. An electrical connector comprising a protective cover that is retracted from the contact portion and automatically covers the electrical contact portion when not connected.