JP3273073B2 - Connector device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device for preventing a short circuit of an electrical contact due to a liquid attached to a connector when connecting each device having a connector having a liquid-tight structure.

[0002]

2. Description of the Related Art In a so-called connector device having a device for connecting electrical contacts of these connectors by connecting the connectors to each other and making electrical connection with each other, there is an opportunity for the device to come into contact with a liquid. In some cases, the connector of the device is liquid tight so that no liquid can enter the device and cause a malfunction.

For example, in the medical field, endoscopes capable of observing organs and the like in a body cavity by inserting an elongated insertion portion into the body cavity are widely used. There is an optical endoscope that allows the naked eye observation from the eyepiece, and an electronic endoscope in which a solid-state imaging device such as a charge-coupled device (CCD) is arranged at the imaging unit at the tip of the insertion unit. A light source device for generating illumination light, an image processing device for processing an imaging signal from a CCD of the electronic endoscope or an external camera mounted on an eyepiece of the optical endoscope, and an image processing device for processing the image signal. It is configured and used as a connector device in which an observation monitor or the like that projects a video signal is connected via a connector. In this case, among the devices constituting the connector device, devices that are immersed in the liquid by washing, disinfecting, etc., such as the endoscope and the external camera, cause the liquid to enter the inside and cause a problem. The connector also has a liquid-tight structure so as not to perform this operation.

Japanese Unexamined Utility Model Publication No. 60-184501 discloses a prior example relating to a liquid-tight structure of a connector. That is, as shown in FIG. 3, an electrode terminal pin 201 which is urged in a direction protruding from the outer peripheral surface is provided on the outer peripheral portion of the connector plug main body 200 of the endoscope, and the electrode terminal pin 201 Before and after sealing members 202 and 20
Movable sleeve 2 interposed and axially urged
A connector disclosed in Japanese Patent Application Laid-Open No. H11-157572, which is configured to be liquid-tight by being covered with a cover 04, in the connector of this example, when the plug of the endoscope is inserted into the socket of the control device, the sleeve 204 moves in the axial direction. As a result, the electrode terminal pins 201 are opened, and an electrical connection is made by contacting the other electrode member.

Japanese Unexamined Patent Publication (Kokai) No. 61-248017 discloses that a waterproof chamber is provided on the back side of an insulator provided with a pin contact with a space facing the base end of the pin contact, thereby providing a space between the pin contact and the insulator. An endoscope connector is disclosed in which even if water enters inside through a gap between the endoscope connector and the endoscope connector, water stays in the waterproof room and water is prevented from entering inside further.

[0006]

However, cleaning and cleaning
After immersing the device in a liquid such as water for disinfection, moisture is attached to the connector of the device as a lump,
Just wiping with a cloth or the like will leave a small amount of moisture.

Therefore, even in the case of an apparatus having a connector whose electric contacts are covered with a sleeve or a liquid-tight connector provided with a waterproof chamber at the base end of a pin contact, as in the above-described prior art, it is not necessary to carry out cleaning and cleaning. If it is immersed in a liquid such as water by disinfection and then immediately connected to another device simply by wiping with a cloth or the like, the remaining moisture may remain at the electrical contacts thinly, and the electrical contacts may conduct and short-circuit.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector for connecting to another device even if a liquid component remains in the connector of the device in contact with the liquid. An object of the present invention is to provide a connector device in which electrical contacts of the connector are not short-circuited.

[0009]

In order to solve the above problems, a connector device according to the present invention is provided with a first electric contact.
First device having a first connector that is liquid-tight
And a second electrode electrically connected to the first electrical contact.
An air contact provided so as to be connectable to the first connector.
A second device having a second connector
A connector provided on the first connector;
Liquid removing means for removing a liquid, and the liquid removing means
Power supply means for outputting a drive power supply for driving the stage;
Electrically connected to the second electrical contact, and is connected to the second device in advance.
Main function operation for operating the specified main function provided
Means for removing liquid adhering to said first connector.
Supply of drive power to the main function operating means
And control means for performing control .

[0010]

In the connector device having the above-mentioned structure, even if the liquid is attached to the connector and the electrical contacts are short-circuited , first, the liquid removing means operates to short-circuit the electrical contacts. Is removed, and thereafter the main function operation means operates.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. As shown in FIG. 1B, a connector device 1 according to the present embodiment includes a rigid mirror 11 having an elongated and rigid insertion portion, and a charge-coupled device (C) mounted on the rigid mirror 11 and not shown therein.
An external camera 2 provided with a solid-state imaging device such as a CD), a light source device 3 for supplying illumination light to the rigid mirror 1, and an external camera 2
And a plurality of devices such as a central control unit 4 (hereinafter, referred to as CCU 4) for controlling the light source device 3, and an observation monitor 5 for displaying a video signal processed by the CCU 4.

The rigid endoscope 11 is connected to the light source device 3 via a cable 6 through which a light guide formed of a fiber bundle for transmitting illumination light is inserted. In addition, external camera 2
Is a signal line for transmitting the drive signal of the CCD or the CC
It is connected to the CCU 4 via a plug 8 which is a connector provided at an end of a cable 7 through which a signal line for transmitting an image signal from D is inserted. In addition, CCU4
It is connected to the observation monitor 5 via a cable 9 through which a signal line for transmitting a video signal is inserted, and is connected to the light source device 3 via a cable 10 through which a signal line for transmitting a dimming signal of illumination light is inserted. Have been.

When the illumination light from the light source device 3, which is dimmed based on the dimming signal from the CCU 4, is irradiated from the tip of the rigid endoscope 1 onto the observation site of the subject 20, an optical image of the observation site is obtained. The image is converted into an image signal by the CCD of the external camera 2 and sent to the CCU 4, converted into a video signal by the CCU 4, and an image of the observation site is displayed on the observation monitor 5. As shown in FIG. 1A, the CCU 4 is connected to the external camera 2.
And a socket 21 as a connector into which the plug 8 of the cable 7 to be connected to is connected. The socket 21 has an electric contact 18 at a position where the plug 8 can be brought into contact with the electric contact 17 of the plug 8 in a state fitted in the socket 21.
Is provided.

The power supply circuit 12 is provided inside the CCU 4.
And a switching control circuit 13, a liquid removing device 15, and a main circuit 14 for operating a main function of the CCU 4 including a processing circuit for processing a video signal. In addition, the CCU
A power switch 16 for operating the power circuit 12 is provided on, for example, the outer surface of the power circuit 4.

In the above configuration of the CCU 4, the power supply circuit 1
Reference numeral 2 is electrically connected to the power switch 16 and the switching control circuit 13. When the power switch 16 is turned on, the power circuit 12 operates and the switching control circuit 13 is driven.

The switching control circuit 13 includes a power supply circuit 12
The electrical connection between the main circuit 14 and the liquid removing device 15 is controlled by switching. That is, the switching control circuit 13
First, at the start of the operation of the power supply circuit 12, the power supply circuit 12 is electrically connected to the liquid removing device 15 to supply power from the power supply circuit 12 to the liquid removing device 15 to drive the liquid removing device 15. At this time, the power supply circuit 12
Is operated, a timer (not shown) provided in the switching control circuit 13 is operated. After that, when a predetermined time set in the timer elapses, the switching control circuit 13 releases the electrical connection between the liquid removing device 15 and the power supply circuit 12 and electrically connects to the electrical contact 18. The main circuit 14 and the power supply circuit 12 are electrically connected.

Even if the power switch 16 is turned on, the liquid removing device 15 is not driven unless the plug 8 and the socket 21 are completely connected by a sensor or the like. It is desirable to do. As a result, the power switch 16 is erroneously turned on before the plug 8 and the socket 2 are connected, and when the plug 8 and the socket 2 are subsequently connected, the driving of the liquid removing device 15 is already stopped and the main circuit 14 is stopped. Can be avoided beforehand.

As the liquid removing device 15, for example, the liquid attached to the electric contact 17 is evaporated by heating the electric contact 18 (means substantially the same as in FIGS. 5 and 6 described later), or a socket. By feeding a gas into the inside 21, the liquid attached to the electric contact 17 can be dried and removed (means similar to FIGS. 7, 9, and 12 described later). Any material that can surely remove the liquid attached to the contact 17 may be used.

Next, the operation of the connector device 1 having the above configuration will be described. First, after inserting the plug 8 into the socket 21 of the CCU 4, the power switch 16 is turned on. As a result, the power from the power supply circuit 12 is supplied to the liquid removing device 15 through the switching control circuit 13, and the liquid removing device 15
Is driven, and a timer provided in the switching control circuit 13 is operated. The liquid adhering to the plug 8 is removed by driving the liquid removing device 15 for a predetermined time set by a timer. In this case, the set time of the timer must be such that the liquid adhering to the plug 8 can be completely removed. Therefore, it is preferable that the setting time of the timer can be appropriately changed.

When a predetermined time set by the timer elapses, the switching control circuit 13 releases the electrical connection between the liquid removing device 15 and the power supply circuit 12 and connects the main circuit to the electrical contact 18. 14 and the power supply circuit 12 are electrically connected. As a result, the imaging signals transmitted from the external camera 2 via the cable 7 are transmitted to the electrical contacts 17 and 18.
Is sent to the main circuit 14 side for processing.

As described above, in the connector device 1 of this embodiment, even if the liquid adheres to the plug 8 and the contacts 17 are short-circuited, the liquid removing device 15 is first turned on by turning on the power switch 16. The main circuit 14 operates only after a predetermined time has elapsed since the liquid that operates to short-circuit the contacts 17 is removed.
A situation in which the main function of U4 is destroyed can be avoided.

FIG. 2 shows a second embodiment of the present invention. In this embodiment, a wetting detection circuit 30 is further provided in the configuration of the CCU 4 of the first embodiment. The wetting detection circuit 30 can detect whether or not the liquid has adhered to the plug 8 by a sensor or the like.
The detection information can be transmitted to the switching control circuit 13.

In the above configuration, when the power switch 16 is turned on, first, the wetting between the contacts 17 of the plug 8 is detected by the wetting detecting circuit 30, and if the wetting is detected based on the information, the liquid removing means 15 is operated. If no wetting is detected, the main circuit 1 is switched by the switching control circuit 13 as it is.
4 will be activated. Note that this wetness detection circuit 30
May be a short circuit detection circuit between the contacts 17 of the plug 8. By providing the wetness detection circuit 30 in this manner,
The CCU 4 can be reliably protected, and the plug 8
There is an advantage that the main circuit 14 can be operated immediately when the liquid is not adhered to the main circuit 14.

By the way, an electrical connector used as a means for transmitting and receiving electrical signals and for supplying power is generally called a card edge connector or a printed circuit board connector. The connector shown in FIG. 4 uses a printed circuit board and includes a printed circuit board side (plug side) 34 and a receptacle side (socket side) 31. The printed circuit board side 34 is generally formed of a plate-like member. An electrical contact 33 formed of a conductive member is exposed on the front and back surfaces.

As shown in FIG. 4B, the receptacle side 31 is formed in a shape into which the printed circuit board side 34 can be inserted.
The electric contact 35 is located at a position where it contacts the electric contact 33.
have. The electric contact 35 is electrically connected to the external contact 32 provided on the receptacle side 31 and is urged in the direction of the arrow in the figure. With this configuration, when the printed circuit board side 34 is inserted into the receptacle side 31, the electrical contacts 33 and the electrical contacts 35 come into contact, and the printed board side 34 and the receptacle side 31 are electrically connected. Further, in order to improve drainage, the printed board side 34 is formed of a highly water-repellent member, or the surface of the printed board side 34 is coated with a highly water-repellent member.

The connector having the above-described structure has a simple structure and excellent assemblability, and has a simple shape and good drainage. Therefore, even if liquid adheres, it has an advantage that it can be easily removed by a measure such as wiping. are doing. However, it is difficult to completely remove the liquid only by wiping with a cloth or the like.
There is a risk that they will conduct and short-circuit. Therefore, the electric contact 3
A method of drying the electrical contacts 3 and the electrical contacts 35, that is, the electrical contacts of both the plug and the socket, is known, but has the disadvantage of increasing the number of parts and requiring a large space.

Therefore, a connector structure which can solve such a disadvantage will be described below by taking the connection between the CCU 4 and the plug 8 as an example.

FIG. 5 shows such a connector structure. As shown in FIG. 5, the CCU 4 is provided with a power supply circuit 46 for activating the CCU 4. The CCU 4 is connected to the external camera 2 via a cable 7. This connection is performed by detachably connecting a plug 8 (card edge connector) provided at the end of the cable 7 to the socket 21 of the CCU 4. The electrical contact 17 of the plug 8 and the electrical contact 18 of the socket 21 are formed of different metals, for example, copper and constantan.
Further, a power supply circuit 51 different from the power supply circuit 46 is provided inside the CCU 4, and the power supply circuit 51 is connected to the socket 2.
1 electrical contact 18. Socket 2
A sensor 50 for detecting the presence or absence of a liquid is provided in the vicinity of the electric contact 18 in 1, and a current flows to the power supply circuit 46 by a detection signal from the sensor 50.

In the above configuration, the electric contacts 1 of the socket 21
Since an electromotive force is generated between the electrical contact 17 of the plug 8 and the electrical contact 17 of the plug 8 and heat is generated by the Peltier effect, even if the plug 8 is inserted into the socket 21 with the liquid attached to the plug 8,
All the liquid adhering to the electrical contacts 17 is evaporated by heat. After that, when the sensor 50 detects that there is no liquid, a current flows through the power supply circuit 46, and CC
U4 starts.

Therefore, unlike the configuration shown in FIG. 4, a short circuit between the electrical contacts 17 can be prevented by a simple and small configuration without requiring complicated manual operations. If this configuration is combined with the first and second embodiments, the electrical safety is further improved.

FIG. 6 has a configuration substantially similar to that of FIG. 5, in which a heating wire 52 connected in series with a power supply circuit 51 is brought into contact with the electrical contact 18 of the socket 21. In this configuration,
The heat generated by the heating wire 52 is transmitted to the electrical contact 17 via the electrical contact 18, and the liquid attached to the electrical contact 17 is evaporated and removed.

In the connector configuration shown in FIG. 7, a sensor 60 is provided near the entrance 62 of the socket 21 of the CCU 4 so that insertion of the plug 8 into the socket 21 can be detected. The sensor 60 is electrically connected to the air pump controller 55, detects insertion of the plug 8, and transmits a detection signal to the air pump controller 55.

The air pump controller 55 is electrically connected to the air pump 56. Further, the discharge hole of the air pump 56 is connected to a pipe 57 provided in the CCU 4. The other end of the pipe 57 is open near the inlet 62 of the socket 21, and the opening 61 is located inside the sensor 60.

In the above configuration, when the plug 8 to which a small amount of liquid adheres is inserted into the socket 21, the sensor 6
0 detects the entry of the plug 8 and transmits a detection signal to the air pump controller 55. As a result, the air pump controller 55 activates the air pump 56, and air is supplied from the discharge hole of the air pump 56 to the pipe 57.
Sent out within. The air sent into the pipe 57 is ejected as an air shower from an opening 61 provided near the inlet 62 of the socket 21, and the residual liquid adhered to the surface of the plug 8 including the electric contact 17. Is removed. The driving time of the air pump 56, that is, the air blowing time may be arbitrarily set by a timer (not shown) or the like. As described above, the present configuration can be configured with general-purpose parts and thus is inexpensive, and can reliably remove a small amount of remaining droplets to prevent an electrical short circuit.

The connector configuration of FIG. 9 is also substantially the same as that of FIG. 7, but the air supply mechanism is different from that of FIG. That is, as shown in FIG. 9, in the CCU 4, various circuit boards 67, a fan drive unit 65 electrically connected to the sensor 60, a heat sink 64,
A fan 63 provided near the heat sink 64 is fixed to the same base 66 made of a heat transfer member by screws or the like (not shown). The other end of the pipe 57 having the opening 12 inside the sensor 60 provided at the entrance 62 of the socket 21 is an introduction hole 58 facing the fan 63. The fan 63 is electrically connected to the fan drive unit 65.

In the above configuration, when the plug 8 to which a small amount of liquid has adhered is inserted into the socket 21, the sensor 6
0 detects the entry of the plug 8, transmits a detection signal to the fan drive unit 65, and the fan drive unit 65 operates the fan 63. In this case, heat generated from the circuit board 67 and the like is transmitted through the base 66 and is radiated from the heat sink 64, so that the fan 63 provided near the heat sink 64 can send out hot air to the introduction hole 58 of the pipe 57. And the hot air sent into the pipe 57 is
Opening 6 provided near inlet 62 of socket 21
1 is sprayed as an air shower.
And the remaining liquid adhering to the surface of the plug 8 is dried and removed. As described above, the present configuration uses the heat generated in the CCU 4 to dry the electrical contacts 17, so that it is possible to efficiently remove the remaining droplets of the electrical contacts 17 and prevent an electrical short circuit.

The connector configuration shown in FIG. 10 is an example in which a liquid removing mechanism is provided on the plug 8 side. As shown, a signal line 82 inserted through the inside of the cable 7 is electrically connected to a CCD 85 provided in the external camera 2. The external camera 2 has a rigid endoscope 11 ((b) of FIG. 1).
An adapter 84 is provided for connection with the reference 84). An electrical contact 17 is provided at the tip of the substrate of the plug 8, and the electrical contact 17 is electrically connected to an electrical contact 79 electrically connected to the signal line 82.

An air channel 80 is provided in the plug 8. One end of air channel 80 is plug 8
A discharge hole 77 opened toward the exposed electrical contact 17 is formed, and the other end of the air channel 80 is connected to a nozzle 81 provided on the outer surface of the plug 8. When the nozzle 81 and the air pump 86 are connected by a rubber hose 83, the air pump 86
From the air supply.

In the above configuration, if a small amount of liquid adheres to the plug 8, first, the air pump 8
The rubber hose 83 connected to the plug 8 is connected to the nozzle 81 of the plug 8.
Connect to Then, when a switch (not shown) of the air pump 86 is turned on, the air from the air pump 86 passes through the rubber hose 83 and the air channel 80 and is discharged from the discharge hole 77 toward the electrical contact 17. As a result, the remaining liquid attached to the electrical contacts 17 is dried and removed.

Further, the plug 8 may be configured as shown in FIG. That is, an air channel 61 having a discharge hole 62 having substantially the same width as the end substrate 64 is provided at the base of the end substrate 64 of the plug 8. One end of the air channel 61 is open to an air introduction cylinder 67 provided on the side of the plug 8. A commercially available balloon 65 can be connected to the opening of the air introduction cylinder 67. When not used, the air introducing cylinder 67 can be housed in a groove 63 provided on the side of the tip substrate 64.

In the above configuration, if a small amount of liquid adheres to the plug 8, first, the air introduction cylinder 6
Balloon 6 raised from groove 63 and inflated in a known manner
5 is connected to the air introducing cylinder 67. As a result, the air in the balloon 65 is sent into the air channel 61 through the air introducing tube 67 and is discharged from the discharge hole 62 toward the electrical contact 17 of the plug 8 with vigor. As a result, the remaining liquid attached to the electrical contacts 17 is dried and removed. This configuration ensures that the liquid adhering to the electrical contacts 17 is dried by extremely simple and inexpensive means to make the electrical contacts 1
The greatest advantage is that the electrical short circuit between the seven devices can be prevented.

The connector configuration shown in FIG. 11 has a wetting detecting unit 111 for detecting wetting of the plug 8 and a warning device 112 for warning of wetting. The configuration of the connector device shown in FIG. 11A is the same as that shown in FIG.

The external camera 2 has waterproofness and can be immersed in a disinfectant or the like as it is. When the plug 8 is inserted into the socket 21 of the CCU 4, the electrical contacts 17 of the plug 8 and the electrical contacts 18 of the socket 21 come into contact, and the external camera 2
And the CCU 4 are electrically connected. Electrical contacts 18
Is connected to the wetness detection unit 111 and can detect the presence or absence of wetness of the plug 8. A warning device including a buzzer, a light emitting element, and the like is electrically connected to the wetness detection unit 111,
When the wetness of the plug 8 is detected by the wetness detection unit 111, the warning device 112 is activated to issue a warning, and the main function control unit ON / OFF unit 113 is switched to the OFF side. In this case, the main function control unit 114 is not driven, and observation by the observation monitor 5 becomes impossible.

When the wetness of the plug 8 is not detected by the wetness detection unit 111, the main function control unit is turned ON / OFF.
The OFF unit 113 switches to the ON side, and the main function control unit 114 operates. Thereby, observation by the observation monitor 5 becomes possible.

In the configuration shown in FIG. 12, when the wetting detection unit 111 detects the wetting of the plug 8, the wetting detection unit 11
The fan control unit 115 electrically connected to 1 drives and operates the fan 116. Thus, the air sent by the fan 116 dries the electrical contacts 18. During the drying, the warning device 112 keeps warning. Electrical contacts 18
When is dried, the wetness detection unit 111 detects this, and the main function control unit 114 is operated via the main function control unit ON / OFF unit 113. The means for drying the electric contact 18 is not limited to the fan 116, but may be an electric heating means or a water absorbing member.

FIG. 13 shows an example in which the wetting detection socket 21a and the main function socket 21b are separately provided on the CCU 4 side. First, the presence or absence of wetness of the plug 8 is checked by the wetting detection socket 21a.
Into the main function socket 21b to connect the external camera 2 and C
It is intended to make a normal electrical connection with the CU 4. That is, first, the plug 8 is connected to the socket 2 for wetting detection.
1a, and if wetness is detected at this time, the plug 8 is removed from the socket 21a, and the plug 8 is sufficiently wiped off.
Insert into b. As a result, the main function immediately operates on the main function socket 18 side.

[0047]

As described above, according to the connector device of the present invention, even if the liquid is attached to the connector and the electrical contacts are short-circuited , first, the liquid removing means is operated and the electrical contact is established. Remove the liquid that will short circuit and then first
Since the main function operating means operates, it is possible to avoid a situation in which the main function of the device is destroyed due to the short-circuit of the electric contact.

[Brief description of the drawings]

FIG. 1A is a configuration diagram of a main part of a connector device according to a first embodiment of the present invention, and FIG. 1B is an overall configuration diagram of the connector device.

FIG. 2 is a main part configuration diagram of a connector device showing a second embodiment of the present invention.

FIG. 3 is a sectional view of a conventional connector.

4A is a perspective view showing a conventional example of a card edge connector, and FIG. 4B is a cross-sectional view showing a connection state of the connector of FIG.

FIG. 5A is a configuration diagram of a main part of a connector device showing a first example of a liquid removing unit, and FIG. 5B is a perspective view of a plug which is a connector of the connector device of FIG.

FIG. 6 is a main part configuration diagram of a connector device showing a second example of the liquid removing means.

FIG. 7 is a main part configuration diagram of a connector device showing a third example of a liquid removing unit.

FIG. 8 is a main part configuration diagram of a connector device showing a fourth example of the liquid removing means.

FIG. 9 is a main part configuration diagram of a connector device showing a fifth example of a liquid removing unit.

FIG. 10 is a main part configuration diagram of a connector device showing a sixth example of a liquid removing unit.

11A is an overall configuration diagram of a connector device, and FIG.
FIG. 9 is a configuration diagram of a main part of the connector device of (a), showing a seventh example of a liquid removing unit.

FIG. 12 is a main part configuration diagram of a connector device showing an eighth example of the liquid removing means.

FIG. 13 is a main part configuration diagram of a connector device showing a ninth example of a liquid removing unit.

[Explanation of symbols]

1. Connector device 2. External camera ( first device ),
4 ... CCU ( second device ), 8 ... Plug ( first connector)
Data), 17 ... electrical contacts (first electrical contact), 18 ... electric
Contacts (second electrical contacts) , 21 ... socket ( second connector)
Kuta), 12 ... power supply circuit (power supply means), 16 ... power switch, 13 ... switching control circuit (control means), 14 ... main circuit (main function operation means), 15 ... liquid removal apparatus (liquid removal hand
Stage ).

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tadayoshi Hara 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside O-Limpus Optical Industry Co., Ltd. (72) Inventor Masahiro Hagiwara 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside the Olympus Optical Co., Ltd. (72) Inventor Hiroshi Tatsuno 2-43-2, Hatagaya, Shibuya-ku, Tokyo Inside the Olympus Optical Co., Ltd. Kenji Omachi 2-43-2, Hatagaya, Shibuya-ku, Tokyo (56) References JP-A-2-286122 (JP, A) JP-A-62-175582 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/70 A61B 1/06 G02B 23/24 H01R 13/52

Claims (1)

(57) [Claims] 1. A liquid-tight structure provided with a first electric contact.
A first connector having a first connector, and a second connector provided with a second electrical contact electrically connected to the first electrical contact so as to be connectable to the first connector. A liquid removing unit provided on the second connector for removing liquid attached to the first connector; and a power supply for outputting a driving power supply for driving the liquid removing unit. Means, main function operating means electrically connected to the second electrical contact, for operating a predetermined main function provided in advance in the second device, and liquid attached to the first connector Control means for controlling the start of supply of drive power to the main function operation means in a state in which is removed.