JP6988941B2 - Electronics - Google Patents

Description

The present invention relates to a waterproof specification of an electronic device provided with a power connector in which a socket and a plug are brought into close contact with each other to conduct conduction by utilizing the magnetic force of a magnet.

There is a power connector that makes a socket and a plug come into close contact with each other by using the magnetic force of a magnet (see Patent Document 1).
In order to make a device equipped with a power connector that uses the magnetic force of such a magnet to bring the socket and plug into close contact with each other to conduct conduction, a waterproof O-ring is installed between the connector and the device body. It prevents water from getting inside the equipment.

Japanese Unexamined Patent Publication No. 2000-30810

However, it has been difficult to prevent conduction due to water between the positive and negative poles of the power supply connector that makes the socket and the plug in close contact with each other and conducts them by utilizing the magnetic force of the magnet as described above.

An object of the present invention is to prevent water conduction between the positive and negative poles of a power connector as a waterproof specification in an electronic device provided with a power connector in which a socket and a plug are brought into close contact with each other to conduct conduction by using the magnetic force of a magnet. Is to.

In order to solve the above problems, the present invention
A first power supply terminal having a groove, a cylindrical insulating member provided around the first power supply terminal, and a polarity different from that of the first power supply terminal provided around the insulating member. A power connector including an annular second power supply terminal and a cylindrical support member provided around the second power supply terminal .
A washer provided in the first power supply pin, and said insulating member abutting against said washer is disposed between, the said first power supply terminal and the second power supply terminal conducts with water With a sealing member to prevent
Equipped with
The cylindrical support member is formed with a drain hole for draining water from the inside of the cylindrical support member to the outside .
The tip of the power plug is inserted into the power connector is an electronic device characterized by Rukoto brought into close contact with the power connector and the power supply plug by a magnetic force.
The other invention is
A first power supply terminal having a groove, a cylindrical insulating member provided around the first power supply terminal, and a polarity different from that of the first power supply terminal provided around the insulating member. A power connector including an annular second power supply terminal and a cylindrical support member provided around the second power supply terminal.
It is arranged between the washer provided on the first power supply terminal and the insulating member that abuts on the washer, and prevents the first power supply terminal and the second power supply terminal from being electrically conducted by water. Sealing member and
Equipped with
The support member is screwed to the equipment case via a pair of holding members.
The insertion piece of the holding member is inserted into the insertion hole of the support member, the holding piece of the holding member is placed on the protruding piece of the support member, and the mounting hole of the holding member is screwed. Fix the support member to the equipment case and
It is an electronic device characterized in that the tip of a power plug is inserted into the power connector and the power plug and the power connector are brought into close contact with each other by magnetic force.

According to the present invention, in an electronic device provided with a power connector in which a socket and a plug are brought into close contact with each other to conduct conduction by using the magnetic force of a magnet, the positive pole and the negative pole of the power connector are prevented from being conducted by water as a waterproof specification. Can be done.

It is a schematic perspective view of the main part of the apparatus which shows the structure of one Embodiment of this invention. It is an enlarged cross-sectional view along the arrow AA line of FIG. It is an enlarged perspective view of the positive terminal assembly of FIG. FIG. 3 is a diagram showing a state in which the sealing member, the washer, and the E-ring are removed from the positive terminal assembly of FIG. It is an enlarged perspective view of the connection pin assembly of FIG. It is a figure in the state which the exterior material of FIG. 1 is removed. FIG. 5 is a perspective view (a) of the support member and the holding member of FIG. 5, and is a view (b) of a state seen from below. It is the figure (a) of only the support member of FIG. 5, and the figure (b) of the state seen from the lower side. FIG. 5 is an enlarged view showing a state in which the support member of FIG. 5 is removed. It shows the structure of one Embodiment of the electronic device to which this invention is applied, and is the schematic perspective view of the wristwatch type electronic device provided with the device main part of FIG. It is a schematic perspective view of the power plug connected to the power connector of FIG.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment)
FIG. 10 shows a wristwatch-type electronic device as a schematic configuration of an embodiment of an electronic device to which the present invention is applied. The wristwatch-type electronic device 1 is provided with a socket-type power connector 10 on one side as shown in the drawing. ing.
The power connector 10 is provided at a mating portion between one side surface of the device case 2 and the exterior material 4 around the cover glass 3, and is a circular positive terminal 11 which is a first power terminal located in the center. It is composed of a cylindrical insulating member 12 around it, a ring plate-shaped negative terminal 13 which is a second power supply terminal located around the insulating member 12, and a cylindrical support member 14 around it.

FIG. 11 shows a schematic configuration of a power plug 110 connected to the power connector 10 of the wristwatch-type electronic device 1 of FIG. 10. The power plug 110 has a pin-shaped positive terminal 111 located at the center as shown in the drawing. , A cylindrical insulating member 112 around it, a cylindrical magnet 114 around it, and a cylindrical negative terminal 113 around it.

When the tip of the power plug 110 is inserted into the power connector 10, the ring plate-shaped negative terminal 13 is attracted to the cylindrical tip surface of the magnet 114, and the pin-shaped tip of the positive terminal 111 comes into contact with the circular surface of the positive terminal 11. Become a state. At the same time, the cylindrical tip of the minus terminal 113 is in contact with the ring plate-like surface of the minus terminal 13 while the insulation state is maintained due to the contact between the cylindrical tips of the insulating members 12 and 112 around it, and the power supply is supplied. It will be connected.

Next, FIG. 1 is an enlarged view of the power connector 10 of the wristwatch-type electronic device 1 of FIG. 10. As shown in FIG. 2, the positive terminal 11 is a round bar-shaped conductive metal, and the insulating member 12 is a round bar-shaped. It has a cylindrical shape that surrounds the positive terminal 11.
Further, the minus terminal 13 is a sheet metal surrounding the cylindrical insulating member 12, and the support member 14 has a cylindrical portion 15 covering the periphery of the plate-shaped minus terminal 13 and is formed of resin. The tip of the power plug 110 is inserted into the cylindrical portion 15 to prevent the power plug 110 from wobbling.

The round bar-shaped positive terminal 11, together with the cylindrical insulating member 12 around it, has a first sealing member 21, a second sealing member 22, and an E-ring with respect to the terminal assembling portion 20 on one side surface of the equipment case 2. It is inserted and fixed via 23.24 and a washer 25.
Both the first sealing member 21 and the second sealing member 22 are О rings, and the first sealing member 21 is arranged in the seal groove of the small diameter portion on the tip side of the positive terminal 11 to waterproof the inside of the device case 2. conduct. The second sealing member 22 is outside the installation position of the first sealing member 21, that is, the side to which the power plug 110 of the positive terminal 11 is connected, and the washer 25 provided in the middle portion of the positive terminal 11. , It is arranged between the outer periphery of the small diameter portion of the tip of the insulating member 12 that abuts on the washer 25, and prevents the positive terminal 11 and the negative terminal 13 from being connected to each other.

The assy state of the positive terminal 11 is shown in FIG. 3, the washer 25 is for preventing the second sealing member 22 from coming off, and the E-ring 24 is for preventing the washer 25 from coming off.
Further, FIG. 4 shows a state in which the sealing members 21 and 22, the E-rings 23 and 24, and the washer 25 are removed from the positive terminal assembly.
The positive terminal 11 and the insulating member 12 are insert-molded.

The negative terminal 13 made of sheet metal surrounds a cylindrical insulating member 12 that prevents conduction with the positive terminal 11, and is screwed to the terminal assembly portion 20 together with the support member 14.
Then, the connection pin 16 in contact with the negative terminal 13 is inserted into the terminal assembling portion 20 and assembled.

That is, the connection pin 16 is inserted and fixed to the terminal assembly portion 20 via the third sealing member 26, the E ring 27, and the washer 28.
The third sealing member 26 is also an О ring, and the third sealing member 26 is arranged in the middle of the connecting pin 16 to urge the connecting pin 16 to be in constant contact with the negative terminal 13 on the other end side of the coil spring 17. Adjacent to the washer 28 that holds down (see also FIG. 5).
The third sealing member 26 waterproofs the inside of the device case 2. Further, the coil spring 17 prevents poor connection between the connection pin 16 and the negative terminal 13.

FIG. 6 shows a state in which the exterior material 4 of FIG. 1 is removed. When the exterior material 4 is removed from the equipment case 2, a pair of holdings are held on the left and right of the upper half of the cylindrical portion 15 of the support member 14, as shown in the figure. The member 18 and the screw 19 are exposed.

7 (a) and 7 (b) show the relationship between the support member 14 and the holding member 18, and as shown in the drawing, the holding member 18 has an insertion piece 18b extended from a portion having a mounting hole 18a and a mounting piece 18b. A holding piece 18c that projects laterally from the portion having the hole 18a is provided.

Then, as shown in FIGS. 8A and 8B, the support member 14 is formed with insertion holes 14b into which the insertion pieces 18b of the holding member 18 are inserted on the left and right sides of the lower half of the cylindrical portion 15. A pair of projecting pieces 14c projecting to the left and right of the upper half of the cylindrical portion 15 are formed.
Further, in the cylindrical portion 15, a drain hole 15a for draining water from the portion overlapping the minus terminal 13 to the outside is formed in a notch shape.

When assembling the support member 14 to the equipment case 2, the insertion pieces 18b of the holding member 18 are inserted into the left and right insertion holes 14b of the support member 14, respectively, and the holding member 18 is placed on the left and right protruding pieces 14c of the support member 14. The presser pieces 18c of the above are overlapped with each other.
Then, a ground plate 29 is placed around the mounting hole 18a of the holding member 18 on one side (left side in FIG. 6), and screws 19 are screwed from the left and right mounting holes 18a into screw holes (not shown) provided in the device case 2. Fix it.
Note that FIG. 9 shows an enlarged state in which the support member 14 of FIG. 5 is removed.

In the above, the positive terminal 11 assembled to the terminal assembly portion 20 of the equipment case 2 is connected to the positive side of the power supply circuit board (not shown) housed in the equipment case 2.
Similarly, the negative terminal 21 assembled to the terminal assembly portion 20 of the equipment case 2 is connected to the negative side of the power supply circuit board in the equipment case 2 via the gold-plated connection pin 16.

As described above, in the wristwatch-type electronic device, the terminal assembly portion 20 of the device case 2 has a plus terminal 11, an insulating member 12, a minus terminal 13, a support member 14, a connecting pin 16, a holding member 18, and a first seal. By assembling the member 21, the second sealing member 22, and the third sealing member 26, the power connector 10 is configured to be waterproof, and the following effects can be obtained.

1) The inside of the device case 2 can be waterproofed by the first sealing member (О ring) 21 provided in the seal groove of the small diameter portion on the tip side of the positive terminal 11. That is, as shown in FIG. 2, even if water enters through the gap between the insulating member 12 and the round bar-shaped positive terminal 11, the first sealing member 21 keeps the inside of the device case 2 waterproof. It can be carried out.

2) The positive terminal 11 is provided with a second sealing member (О ring) 22 provided between the washer 25 in the middle portion of the positive terminal 11 and the outer circumference of the small diameter portion of the tip portion of the insulating member 12 that abuts on the washer 25. It is possible to prevent conduction with the negative terminal 13 due to water.

That is, as shown in FIG. 2, even if water enters the gap between the terminal assembly portion 20 of the device case 2 and the outer circumference of the cylindrical insulating member 12, the outer circumference of the small diameter portion at the tip of the insulating member 12 is the first. It can be waterproofed by the second sealing member (О ring) 22 to prevent the round bar-shaped positive terminal 11 inside from being conductive to the negative terminal 13 on the outside by water.
Further, even if water should enter the inside beyond the second sealing member (О ring) 22, the first sealing member (О ring) 21 provided in the seal groove of the small diameter portion on the tip side of the positive terminal 11. This makes it waterproof and prevents water from entering the inside of the device case 2.

3) A third sealing member (О ring) provided adjacent to a washer 28 that presses the other end side of the coil spring 17 that urges the connection pin 16 to the negative terminal 13 in a constant contact state at the intermediate portion of the connection pin 16. ) 26 makes it possible to waterproof the inside of the device case 2.

That is, as shown in FIG. 2, even if water enters the gap between the terminal assembly portion 20 and the outer periphery of the connection pin 16, the first sealing member (О ring) 21 provided in the intermediate portion of the connection pin 16 This makes it waterproof and prevents water from entering the inside of the device case 2.

4) The coil spring 17 can prevent a poor connection between the connection pin 16 and the negative terminal 13.

5) Water can be drained to the outside from the negative terminal 13 portion in the cylindrical portion 15 by the notch-shaped drain hole 15a provided in the cylindrical portion 15 of the support member 14.

As described above, according to the wristwatch-type electronic device of the embodiment, the first sealing member 21 arranged between the terminal assembly portion 20 and the positive terminal 11 and in contact with the terminal assembly portion 20 and the positive terminal 11 A second sealing member 22 in contact with the terminal assembly portion 20 and the insulating member 12 is provided outside the position where the first sealing member 21 is arranged.
Therefore, by making the power connector 10 waterproof, it is possible to prevent the positive terminal 11 and the negative terminal 13 from being connected by water.

(Modification example)
In the above embodiments, the wristwatch type electronic device is used, but the present invention is not limited to this, and other electronic devices such as mobile phones may be used.
In addition, the shape of the power supply terminal, insulating member, terminal assembly, sealing member, support member, drainage hole, etc. is arbitrary, and it goes without saying that the specific detailed structure, etc. can be changed as appropriate. be.

Although some embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but the scope of the invention described in the claims and the scope thereof are the same. include.
The inventions described in the claims originally attached to the application of this application are described below.
The claims described in the appendix are the scope of the claims originally attached to the application for this application.
[Additional Notes]
<Claim 1>
The first power supply terminal and
A second power supply terminal with a polarity different from that of the first power supply terminal,
An insulating member arranged between the first power supply terminal and the second power supply terminal and provided so as to surround the first power supply terminal.
A power supply circuit to which the first power supply terminal and the second power supply terminal are connected,
A terminal assembly unit in which the first power supply terminal and the second power supply terminal are assembled to connect the first power supply terminal and the second power supply terminal to the power supply circuit.
It is an electronic device equipped with
A first sealing member arranged between the terminal assembly portion and the first power supply terminal and in contact with the terminal assembly portion and the first power supply terminal.
A second sealing member in contact with the terminal assembly portion and the insulating member outside the position where the first sealing member is arranged.
An electronic device characterized by being equipped with.
<Claim 2>
The first power supply terminal and
A second power supply terminal with a polarity different from that of the first power supply terminal,
A terminal assembly portion in which the first power supply terminal and the second power supply terminal are arranged,
An insulating member arranged between the first power supply terminal and the second power supply terminal,
A first sealing member arranged between the terminal assembly portion and the first power supply terminal and sealing and waterproofing between the terminal assembly portion and the first power supply terminal.
It is arranged between the terminal assembly portion and the insulating member, and the space between the terminal assembly portion and the insulating member is sealed and waterproofed, and between the first power supply terminal and the second power supply terminal. A second sealing member that prevents the continuity of
An electronic device characterized by being equipped with.
<Claim 3>
A support member provided in contact with the second power supply terminal to prevent wobbling of the power plug in contact with the first power supply terminal and the second power supply terminal is provided.
The electronic device according to claim 1 or 2, wherein the support member is formed with a drain hole for draining water from a portion surrounding the power plug to the outside.
<Claim 4>
One of claims 1 to 3, wherein the second sealing member is supported between the insulating member and the terminal assembly portion by a washer installed on the first power supply terminal. The electronic device described in.
<Claim 5>
The electronic device according to any one of claims 1 to 4, wherein the first sealing member and the second sealing member are O-rings.
<Claim 6>
The electronic device according to any one of claims 1 to 5, wherein a magnet on the power plug side is attracted to the second power supply terminal.
<Claim 7>
The electronic device according to any one of claims 1 to 5, further comprising a connection pin connected to the second power supply terminal and assembled to the terminal assembly portion.
<Claim 8>
The electronic device according to claim 7, wherein the second power supply terminal is provided with a spring for urging the connection pin in a connected state.
<Claim 9>
The support member is screwed to the equipment case via a pair of holding members.
Moreover, the support member has an insertion hole into which one end of the holding member is inserted, and a protruding piece on which the other end side of the holding member is placed.
The holding member has an insertion piece inserted into the insertion hole of the support member at one end, and a mounting hole screwed to the device case and the protrusion of the support member on the other end side. The electronic device according to any one of claims 3 to 8, wherein the electronic device has a holding piece that is placed on a piece and held down.

1 Electronic device 2 Equipment case 3 Cover glass 4 Exterior material 10 Power connector 11 Plus terminal (first power terminal)
12 Insulation member 13 Negative terminal (second power supply terminal)
14 Support member 14b Insertion hole 14c Protruding piece 15 Cylindrical part 15a Drain hole 16 Connection pin 17 Spring 18 Holding member 18a Mounting hole 18b Insertion piece 18c Presser piece 19 Screw 21 First sealing member 22 Second sealing member 23 E-ring 24 E-ring 25 Washer 26 Third sealing member 27 E-ring 28 Washer 29 Ground plate 110 Power plug 111 Positive terminal 112 Insulating member 113 Negative terminal 114 Magnet

Claims (2)

A first power supply terminal having a groove, a cylindrical insulating member provided around the first power supply terminal, and a polarity different from that of the first power supply terminal provided around the insulating member. A power connector including an annular second power supply terminal and a cylindrical support member provided around the second power supply terminal .
A washer provided in the first power supply pin, and said insulating member abutting against said washer is disposed between, the said first power supply terminal and the second power supply terminal conducts with water With a sealing member to prevent
Equipped with
The cylindrical support member is formed with a drain hole for draining water from the inside of the cylindrical support member to the outside .
Electronic device the tip of the power plug is inserted into the power supply connector, and wherein the Rukoto brought into close contact with the power connector and the power supply plug by a magnetic force. A first power supply terminal having a groove, a cylindrical insulating member provided around the first power supply terminal, and a polarity different from that of the first power supply terminal provided around the insulating member. A power connector including an annular second power supply terminal and a cylindrical support member provided around the second power supply terminal .
A washer provided in the first power supply pin, and an insulating member which abuts the washer is disposed between the, from the first power supply terminal and the second power supply terminal conducts with water Sealing member to prevent and
Equipped with
The support member is screwed to the equipment case via a pair of holding members.
The insertion piece of the holding member is inserted into the insertion hole of the support member, the holding piece of the holding member is placed on the protruding piece of the support member, and the mounting hole of the holding member is screwed. a support member fixed to the device case,
Electronic device the tip of the power plug is inserted into the power supply connector, and wherein the Rukoto brought into close contact with the power connector and the power supply plug by a magnetic force.

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