JP3170223B2 - connector - 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,
In particular, the present invention relates to a connector capable of preventing a contact failure caused by dust adhering to a pin contact.

[0002]

2. Description of the Related Art As a connector for electrically connecting cables, there is a connector composed of a plug-side connector and a receptacle-side connector.

The plug-side connector has a socket contact and a male insulator to which the socket contact is fixed.

[0004] The receptacle-side connector includes a pin contact and a female insulator to which the pin contact is fixed.

[0005] A guide hole is formed in the front surface of the insulator of the plug-side connector.

When the insulator of the plug-side connector is inserted into the receptacle of the insulator of the receptacle-side connector, the pin contact of the receptacle-side connector enters the inside of the insulator through the guide hole of the insulator of the plug-side connector, and is inserted into the socket contact of the plug-side connector. Contact.

[0007] The front surface of the insulator of the receptacle-side connector is largely open to the outside to receive the insulator of the plug-side connector. for that reason,
When not fitted, dirt, oil, and the like easily adhere to the contact portions of the pin contacts.

Therefore, conventionally, a so-called dust cap is mounted on the front surface of the insulator of the receptacle-side connector to prevent dust and oil from adhering to the pin contact.

[0009]

However, in many cases, the user forgets to attach the dust cap or loses the dust cap, and it is actually impossible to reliably prevent dust and oil from adhering to the pin contact. was difficult.

Therefore, when the plug-side connector and the receptacle-side connector are fitted with each other, a contact failure between the pin contact and the socket contact may occur.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a connector capable of preventing a contact failure due to dust or the like adhering to a pin contact.

[0012]

According to a first aspect of the present invention, there is provided a connector, comprising: a plug-side connector having a socket contact, a first insulator to which the socket contact is fixed, and a pin contact. And a receptacle-side connector having a second insulator to which the pin contact is fixed, and guides the pin contact to the socket contact when inserting the first insulator into a receiving portion of the second insulator. guide hole, wherein formed on the front surface portion of the first insulator, the first insulator between the front portion and the are arranged cleaner between the socket contact, the guide hole and the hole is the cleaner opposite to the insertion direction And the inner diameter of the hole of the cleaner is in contact with the pin contact. The connector slightly smaller than the outer diameter of the
In this case, the first insulator is housed inside,
An elastically deformable tank for containing a cleaning liquid;
To guide the cleaning liquid contained in the tank to the cleaner
Cleaning liquid introduction path and the first insulator
2 when inserted into the receiving portion of the insulator 2
And compresses the liquid in the tank through the cleaning liquid introduction path.
A movable body for supplying a cleaning liquid to the cleaner .

The insulator of the plug side connector is
Insert into the receptacle of the insulator on the connector on the receptacle side.
The movable body compresses the tank and the washing liquid in the tank is washed.
The cleaning liquid is supplied to the cleaner via the
Impregnated in the container. Therefore, the contact part of the pin contact
When the pin contacts the contacts of the socket contact,
Dirt or other foreign matter adhering to the contact area of the contact
As well as the plug connector
Cleaner is cleaned every time it mates with receptacle side connector
As the liquid is supplied (replenished), the high cleaning power of the cleaner
Will be kept.

[0014]

[0015]

[0016]

[0017]

[0018] The connector of the invention of claim 2, wherein, in the connector of the invention described in claim 1, wherein said cleaner
Cleaning solution absorption mat placed between the socket contact
Between the cleaning liquid absorbing mat and the cleaner.
From the cleaner to the cleaning liquid absorbing mat.
A spacer for blocking the flow of the cleaning liquid;
The hole facing the hole of the cleaner in the insertion direction is
And the cleaning liquid formed on the spacer and the spacer, respectively.
The inside diameter of each hole of the absorption mat and the spacer is
It is characterized by being substantially equal to the inner diameter of the hole of the cleaner.

When the insulator of the plug side connector is inserted into the receptacle of the insulator of the receptacle side connector, the movable body compresses the tank, the cleaning liquid in the tank is supplied to the cleaner through the cleaning liquid introduction path, and the cleaning liquid impregnates the cleaner. . Since the cleaning liquid absorbing mat is arranged between the cleaner and the socket contact, and the spacer is disposed between the cleaning liquid absorbing mat and the cleaner, the cleaning liquid from the tank is not supplied to the cleaning liquid absorbing mat, and the cleaning liquid absorbing mat is not provided. Keep dry. When the insulator of the plug-side connector is inserted into the receptacle of the insulator of the receptacle-side connector, the contact portion of the pin contact of the receptacle-side connector has the guide hole of the insulator of the plug-side connector, the hole of the cleaner, the hole of the spacer, and the cleaning liquid. It sequentially passes through the holes of the absorption mat and contacts the contact portions of the socket contacts of the plug-side connector. When the contact portion of the pin contact passes through the hole of the cleaner, dust or the like adhering to the contact portion of the pin contact is scraped off by the cleaner and at the same time is washed off by the cleaning liquid impregnated in the cleaner. Thereafter, when the contact portion of the pin contact passes through the hole of the cleaning liquid absorbing mat, the cleaning liquid adhering to the contact portion of the pin contact is absorbed by the cleaning liquid absorbing mat. As a result, the contact portion of the pin contact contacts the socket contact in a dry state.

[0020]

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

FIG. 1 is a sectional view showing a connector according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a movable button.

This connector comprises a plug-side connector 1,
And a receptacle-side connector 2.

The plug-side connector 1 includes an insulator (first insulator) 3 and a socket contact 4.

Two socket contacts 4 are fixed to the insulator 3. The insulator 3 is held by a cylindrical holder 6, and a cable 7 is inserted into the holder 6. The distal end 7 a of the cable 7 is connected to the connection 4 c of the socket contact 4.

Two guide holes 8 are formed in the front surface 3a of the insulator 3. The inner diameter of the guide hole 8 is slightly larger than the outer diameter of a contact portion 20a of the pin contact 20 described later. A cleaner (eg, felt) 9 is disposed between the front surface 3 a of the insulator 3 and the socket contact 4. The cleaner 9 has a front part 3a and a partition part 3b.
And is held in. The material of the cleaner is not limited to felt, but may be any material having good liquid absorbability.

The cleaner 9 has two guide holes 8 and two holes 9a opposed to each other in the insertion direction A. The inner diameter of the hole 9a is equal to the contact portion 20a of the pin contact 20 described later.
Slightly smaller than the outside diameter.

Inside the insulator 3, two elastically deformable tanks 10 for accommodating the cleaning liquid L are accommodated. Between the tank 10 and the cleaner 9, a pipe (cleaning liquid introduction path) 11 for guiding the cleaning liquid L stored in the tank 10 to the cleaner 9 is provided.

An L-shaped movable button (movable body) 1 for compressing the tank 10 and feeding the cleaning liquid L to the cleaner 9 via the pipe 11 is provided inside the insulator 3.
2 is incorporated so as to be movable in a direction orthogonal to the insertion direction A. The movable button 12 is constantly urged in a direction away from the socket contact 4 by the elastic force of the tank 10, and one end 12 a of the movable button 12 protrudes from the hole 13 to the outside of the insulator 3. The other end 12b of the movable button 12 is always in contact with the tank 10.

The receptacle-side connector 2 includes an insulator (second insulator) 21 and a pin contact 2.
0.

The insulator 21 is a housing 23 of the electronic device.
It is fixed to. A receiving portion 23 for receiving the insulator 3 of the plug-side connector 1 is provided on the insulator 21.
Are formed. The inner diameter of the receiving portion 23 is slightly larger than the outer diameter of the insulator 3 of the plug-side connector 1.

On the bottom surface 21a of the insulator 21,
The fixing portion 20b of the pin contact 20 is fixed.
The connecting portion 20c of the pin contact 20 is connected to the distal end portion 22a of the cable.

Next, the operation of the connector of this embodiment (when the plug-side connector 1 is fitted to the receptacle-side connector 2) will be described with reference to FIGS. FIG. 3 is a cross-sectional view showing a state immediately after the insertion of the insulator of the plug-side connector into the receptacle of the insulator of the receptacle-side connector is started. FIG. FIG. 5 is a cross-sectional view showing a state in which the plug-side connector is being inserted, and FIG. 5 is a cross-sectional view showing a state in which the insulator of the plug-side connector has been inserted into the receiving portion of the insulator of the receptacle-side connector.

When the insulator 3 of the plug-side connector 1 is inserted into the receiving portion 23 of the insulator 21 of the receptacle-side connector 2, the movable button 1
2 is in contact with the opening edge of the receiving portion 23, and the one end 12 a of the movable button 12 is in contact with the hole 13 of the insulator 3.
The movable button 12 moves toward the socket contact 4 side (see FIG. 3). At this time, the contact portion 20a of the pin contact 20 of the receptacle-side connector 2 has not reached the guide hole 8 of the insulator 3 of the plug-side connector 1.

When the movable button 12 moves to the socket contact 4 side, the tank 10 is compressed, and the cleaning liquid L in the tank 10 is sent to the cleaner 9 through the pipe 11. As a result, the cleaning liquid L impregnates the cleaner 9.

When the insulator 3 of the plug-side connector 1 is further inserted from the state shown in FIG.
When the front portion 3a of the connector 2 passes through the intermediate portion of the receiving portion 23 of the insulator 21 of the receptacle side connector 2, the contact portion 2 of the pin contact 20 of the receptacle side connector 2
0a reaches the hole 9a of the cleaner 9 via the guide hole 8 (see FIG. 4).

When the insulator 3 of the plug-side connector 1 is further inserted from the state shown in FIG.
Abuts against the bottom surface 21a of the insulator 21 of the receptacle-side connector 2. At this time, the pin contact 20 penetrates deeply into the insulator 3 of the plug-side connector 1, and the contact portion 4 of the socket contact 4
a (see FIG. 5). Since the inner diameter of the hole 9a of the cleaner 9 is slightly smaller than the outer diameter of the contact portion 20a of the pin contact 20, the contact portion 20a of the pin contact 20 contacts the periphery of the hole 9a of the cleaner 9 while contacting the insulator 3.
Get inside. Accordingly, by the time the contact portion 20a of the pin contact 20 comes into contact with the contact portion 4a of the socket contact 4, dirt, oil, and the like adhering to the contact portion 20a of the pin contact 20 are scraped off by the cleaner 9, and at the same time, Cleaning liquid L impregnated in cleaner 9
Washed off by.

When the plug connector 1 is detached from the receptacle connector 2, the movable button 12 moves away from the socket contact 4 due to the restoring force of the tank 10, and one end 12a of the movable button 12 is moved to the insulator 3 position. (See FIG. 1).

According to the connector of the first embodiment,
When the insulator 3 of the plug-side connector 1 is inserted into the receiving portion 23 of the insulator 21 of the receptacle-side connector 2, the pin contact 20
The dust and oil adhering to the contact portion 20a of the pin contact 20 are removed by the cleaner 9 and the cleaning liquid L before contact with the pin contact 20, so that the contact failure between the pin contact 20 and the socket contact 4 is reliably prevented. And the contact reliability is improved.

Also, since no dust cap is used,
The user does not forget to attach the dust cap or lose the dust cap, and is freed from complicated dust cap management.

FIG. 6 is a sectional view showing a plug-side connector of a connector according to a second embodiment of the present invention. Portions common to the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the cleaning liquid absorbing mat 31 is joined to the rear side of the cleaner 9 via the spacer 30.
The cleaning liquid absorbing mat 31 is formed of the same material as the cleaner 9.

Since the spacer 30 is arranged between the cleaner 9 and the water absorbing mat 31, the flow of the cleaning liquid L from the cleaner 9 to the cleaning liquid absorbing mat 31 is prevented.

The spacer 30 and the cleaning liquid absorbing mat 31 have holes 30a opposed to the holes 9a of the cleaner 9 in the insertion direction A.
a, 31a are formed. The inner diameters of the holes 30a and 31a of the spacer 30 and the water absorbing mat 31 are
It is almost equal to the inner diameter of a.

When the insulator 3 of the plug-side connector 1 is inserted into the receiving portion 23 of the insulator 20 of the receptacle-side connector 2, one end 12a of the movable button 12
Is pushed into the hole 13 of the insulator 3 and the tank 1
0 contracts. The tank 10 is compressed and shrunk,
The cleaning liquid L inside is sent to the cleaner 9 through the pipe 11, and the cleaning liquid L impregnates the cleaner 9. A spacer 30 is disposed between the cleaner 9 and the cleaning liquid absorbing mat 31, and the cleaning liquid L from the tank 10 is applied to the cleaning liquid absorbing mat 31.
Is not supplied, the cleaning liquid absorbing mat 31 is kept in a dry state.

On the other hand, the contact portion 20a of the pin contact 20
Are the guide holes 8 of the insulator 3 and the holes 9 of the cleaner 9
a, hole 30a of spacer 30 and cleaning liquid absorption mat 31
Through the holes 31a, and comes into contact with the contact portions 4a of the socket contacts 4.

When the contact portion 20a of the pin contact 20 passes through the hole 9a of the cleaner 9, dirt, oil, and the like adhering to the contact portion 20a of the pin contact 20 are scraped off by the cleaner 9 and at the same time. Is washed off by the washing liquid L impregnated in the substrate.

Thereafter, the contact portion 20 of the pin contact 20
When a passes through the hole 31a of the cleaning liquid absorption mat 31,
The cleaning liquid L attached to the contact portion 20a of the pin contact 20 is absorbed by the cleaning liquid absorption mat 31. As a result, the contact portion 20a of the pin contact 20 contacts the socket contact 4 in a dry state.

According to the connector of the second embodiment,
The cleaning liquid L adhering to the surface of the pin contact 20 is absorbed by the cleaning liquid absorbing mat 31, and the contact portion 20a of the pin contact 20 is
Since the contact a is always in a dry state, the reliability of contact between the pin contact 20 and the socket contact 4 is further improved.

In each of the above embodiments, the cleaner 9
Although the connector having a configuration in which the cleaning liquid L is supplied from the tank 10 and the cleaning liquid L is impregnated in the cleaner 9 has been described as a modification, the cleaner 9 previously impregnated with the cleaning liquid L without the tank 10 may be used as the plug-side connector 1. May be incorporated in the insulator 3. Further, as another modified example, only the cleaner 9 not impregnated with the cleaning liquid L may be incorporated in the insulator 3 of the plug-side connector 1.

[0050]

As described above, according to the connector of the first aspect, the plug-side connector and the receptacle are provided.
Each time the side connector is mated with the
The contact area of the pin contact of the connector is cleaned with a cleaner.
The plug side connector and the receptacle side connector.
Cleaning solution is replenished to the cleaner each time
To the socket contact of the plug-side connector.
Reliable contact with the pin contact of the receptacle side connector
Performance is improved, and the cleaner
The cleaning power can be prevented from lowering, and the connector on the receptacle side
More reliably removes dirt and oil from pin contacts
can do.

[0051]

[0052]

According to the connector of the second aspect of the present invention,
After the contact portion of the pin contact is cleaned with the cleaner, the cleaning liquid adhering to the contact portion of the pin contact is absorbed by the cleaning liquid absorbing mat, and the contact portion of the pin contact always contacts the socket contact in a dry state. The reliability of the contact between the socket contact of the plug-side connector and the pin contact of the receptacle-side connector is further improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a connector according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a movable button.

FIG. 3 is a cross-sectional view showing a state immediately after the insertion of the insulator of the plug-side connector into the receptacle of the insulator of the receptacle-side connector is started.

FIG. 4 is a cross-sectional view showing a state in which the insulator of the plug-side connector is being inserted into the receptacle of the insulator of the receptacle-side connector.

FIG. 5 is a cross-sectional view showing a state where the insulator of the plug-side connector has been inserted into the receptacle of the insulator of the receptacle-side connector.

FIG. 6 is a sectional view showing a plug-side connector of a connector according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug side connector 2 Receptacle side connector 3 Insulator 3a Front part of insulator 4 Socket contact 8 Guide hole 9 Cleaner 9a Cleaner hole 10 Tank 11 Pipe 12 Movable button 20 Pin contact 20a Pin contact contact part 21 Insulator 23 Insulator receiving part 30 Spacer 30a Spacer hole 31 Cleaning liquid absorption mat 31a Cleaning liquid absorption mat hole A Insertion direction L Cleaning liquid

Claims (2)

(57) [Claims] A plug-side connector having a socket contact, a first insulator to which the socket contact is fixed; a receptacle-side connector having a pin contact; and a second insulator to which the pin contact is fixed. comprising a guide hole for guiding the pin contact when inserting the first insulator to the receiving portion of the second insulator to the socket contact is formed in the front surface portion of the first insulator, the first A cleaner is disposed between the front surface of the insulator and the socket contact, a hole facing the guide hole in the insertion direction is formed in the cleaner, and an inner diameter of the cleaner hole is an outer diameter of the contact portion of the pin contact. the connector slightly smaller than, the first insulator Is housed inside, the cleaning solution
An elastically deformable tank for containing, and a cleaning liquid contained in the tank is guided to the cleaner.
Liquid introduction path for connecting the first insulator to the second insulator
Compress the tank when inserted into the receiving part of the
The cleaning liquid in the tank is cleaned through the cleaning liquid introduction path.
And a movable body for supplying the connector to the connector. 2. The cleaner and the socket contact.
And a cleaning liquid absorbing mat disposed between the cleaning liquid absorbing mat and the cleaner.
The washing liquid from the cleaner to the washing liquid absorbing mat.
And a spacer for preventing the flow of solution purification, the hole facing the hole and the insertion direction of the cleaner, the cleaning
A hole formed in the liquid absorbing mat and the spacer, respectively, in the cleaning liquid absorbing mat and the spacer;
The inside diameter of the cleaner is almost equal to the inside diameter of the hole of the cleaner.
The connector according to claim 1, wherein