JP2002359132A - Electromagnetic induction type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic induction type connector which can prevent breakage caused by collision, and an electromagnetic induction type connector which can prevent water from entering. SOLUTION: A first connector 23 and a second connector 25 are provided. The first connector is provided with a first core body 26 with a primary core 37 and a primary coil 38. The first connector 23 is provided with an elastic member 27 which can make the first core body 26 go back by the contact of the second connector 25 and fixing members 28, 28 whereto the elastic member 27 is connected. A water-proof coating part 40 covering the first core body 26 watertightly is formed in the elastic member 27. Meanwhile, the second connector 25 is provided with the second core body 32 wherein induced electromotive force is generated by the first core body 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic induction type connector in which two members are brought close to each other to supply power or transmit a signal from one of the two members to the other by mutual induction.

[0002]

2. Description of the Related Art As this type of electromagnetic induction type connector,
2. Description of the Related Art A power supply used for supplying electric power between two members, such as between a vehicle body and a door, is well known.
That is, as shown in FIGS. 9 and 10, a first connector 4 that constitutes an electromagnetic induction type connector is provided at the boarding opening 3 of the vehicle body 2 in the automobile 1. The door 5 that opens and closes the boarding gate 3 is provided with a second connector 6 that also forms an electromagnetic induction type connector.

The first connector 4 is provided with a guide mechanism 9 comprising a recess 7 and a moving base 8, and the primary core 10 is slidable by the guide mechanism 9 (slidable in the opening and closing direction of the door 5). It is supported by. Coil springs 11 are provided between the bottom of the recess 7 and the moving base 8. Further, an annular permanent magnet 12 is provided on the primary core 10 side of the moving base 8.

The primary core 10 includes a disk 13 fixed to the moving base 8 and a column 14 projecting from the center of the disk 13. A primary coil 15 around which an electric wire is wound is provided around the cylindrical body 14.

[0005] The second connector 6 has a secondary core 18 having a cylindrical wall 16 and a bottom wall 17. Also,
A secondary coil 19 having a space into which the columnar body 14 of the primary core 10 and the primary coil 15 can be inserted is provided inside the cylindrical wall 16. The second connector 6 has a permanent magnet 2 similar to the permanent magnet 12 of the first connector 4.
0 is provided near the opening edge of the cylindrical wall 16.

In the above construction, the door 5 is connected to the vehicle body 2
When closed against the primary core 10 and the secondary core 18
Are matched. Further, the permanent magnets 12 and 20 attract each other, and the primary core 10 and the secondary core 18 are closely joined. Thereby, the primary coil 15 and the secondary coil 1
9, a mutual induction action occurs, and power supply from the vehicle body 2 to the door 5 is started.

[0007]

In the above prior art, if the door 5 is closed with respect to the vehicle body 2 and the primary core 10 and the secondary core 18 collide for some reason, they are damaged. There was a fear that it would. Also,
Since there is no waterproof structure, there is a possibility that water may enter the vehicle body 2.

The present invention has been made in view of the above circumstances, and has as its object to provide an electromagnetic induction type connector capable of preventing damage due to collision. Another object is to provide an electromagnetic induction type connector capable of preventing water from entering.

[0009]

According to the first aspect of the present invention, there is provided an electromagnetic induction connector according to the first aspect of the present invention, wherein two members are brought close to each other and electric power is supplied from one of the two members to the other by mutual induction. An electromagnetic induction type connector comprising the first connector on one side and the second connector on the other side for supplying or transmitting a signal, wherein the first connector has a primary core and a primary coil. A second core body having a secondary core and a secondary coil, wherein an induced electromotive force is generated by the first core body, and the first connector or the second connector Any one of the elastic member capable of retreating the first core body or the second core body provided in the one by contact with the other, and a fixing member to which the elastic member is connected Change It is characterized by comprising.

According to a second aspect of the present invention, there is provided the electromagnetic induction type connector according to the first aspect, wherein the connection between the elastic member and the fixing member is made watertight and the elastic member is connected to the elastic member. And a waterproof covering portion for watertightly covering the first core body or the second core body provided in any one of the above.

According to a third aspect of the present invention, there is provided the electromagnetic induction type connector according to the first aspect, wherein the connection between the elastic member and the fixing member is made water-tight, and the one of the two is fixed. Wherein the first core body or the second core body provided with a water-proof portion to which the elastic member is connected in a water-tight manner is provided.

According to the first aspect of the present invention,
When the two members are brought closer to each other, the first connector and the second connector come closer together. At this time, if the first connector and the second connector come into contact with each other, the first core body or the second core body provided on one of the elastic members is retracted by one of the elastic members. Then, when a mutual induction action occurs between the first connector and the second connector, power supply or signal transmission from one of the two members to the other is started. The elastic member prevents the first connector and / or the second connector from being damaged by collision.

According to the second aspect of the present invention,
The elastic member and the fixed member are connected in a watertight manner. Further, the first core body or the second core body which can be retracted by the elastic member is covered with the waterproof covering portion of the elastic member in a watertight manner. Even if the first core body or the second core body can be retracted, intrusion of water from the retreated portion is prevented.

According to the third aspect of the present invention,
The elastic member and the fixed member are connected in a watertight manner. Further, the elastic member and the waterproof portion are connected in a watertight manner. Even if the first core body or the second core body can be retracted, water can be prevented from entering from the retreating portion.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the electromagnetic induction type connector of the present invention. 2 is a plan view of the first connector, FIG. 3 is a cross-sectional view taken along line AA of FIG. 2, FIG. 4 is a plan view of the second connector, FIG. 5 is a cross-sectional view taken along line BB of FIG. FIG. 7 is a cross-sectional view illustrating the joined state of the first connector and the second connector (when the door is normally closed), and FIG. 7 is a cross-sectional view illustrating the joined state of the first connector and the second connector (when the door is suddenly closed). is there.

In FIG. 1, reference numeral 21 denotes an electromagnetic induction type connector. The electromagnetic induction type connector 21
A first connector 23 provided at a boarding opening 22 of a vehicle body (corresponding to one of the two members described in the claims) of a vehicle, and a vehicle door (a two member member described in the claims). (Corresponding to the other one of them). Also,
The electromagnetic induction type connector 21 of the present embodiment includes a first connector 23
When the second connector 25 and the second connector 25 come close to each other, power is supplied from the vehicle body to the door by mutual induction.

Further, the electromagnetic induction type connector 2 of the present embodiment
1 is configured so that damage due to collision can be prevented. Furthermore, the electromagnetic induction type connector 21 of the present embodiment is configured to be able to absorb the positional displacement of the first connector 23 or the second connector 25 due to the poor installation of the door or a change with time.

The first connector 23 comprises a first core body 2
6, an elastic member 27, and a pair of fixing members 28, 28. Further, a primary coil oscillation drive control device 31 housed in a case 30 is connected to the first connector 23 via electric wires 29, 29. The primary coil oscillation drive control device 31 has a function as an inverter, and is configured to be able to control excitation of a primary coil 38 described later.

The second connector 25 includes a second core member 32 that is close to the first core member 26 when the door is closed with respect to the vehicle body, and a covering member 33 that covers the second core member 32. And is configured. In addition, the case 35 is connected to the second connector 25 via the electric wires 34, 34.
Is connected to a known rectifier circuit 36 housed in the rectifier circuit 36.

First, the first connector 23 will be described in more detail with reference to FIGS.

The first core body 26 has a primary core 37 and a primary coil 38. The primary core 37 is formed, for example, by sintering ferrite powder, and has an annular groove 39 having a concave cross section on one surface. The primary coil 38 is formed by winding an electric wire, and is accommodated in an annular groove 39.

The elastic member 27 is made of a rubber material in this embodiment. Further, the elastic member 27 covers the waterproof core portion 40 covering the first core body 26, the elastic portion 41 for allowing the first core body 26 to retreat, and the fixing members 28, 28. It is configured to have fixing member connecting portions 42, 42 connected to the fixing members 28, 28 in the state.

The waterproof covering portion 40 is a substantially cap-shaped portion that covers the one surface and the outer peripheral surface of the first core body 26 in a water-tight manner. 25 (described later) are brought into proximity (or contact). In addition, the waterproof cover 40
Are fixed to the first core body 26 with an adhesive or the like.
Such a waterproof covering portion 40 can also realize protection of the first core body 26 and mitigation of impact upon contact. Note that, in the present embodiment, the waterproof covering portion 40 is disposed such that the tip end surface protrudes from the boarding port 22 (this is not limited to this. May be one).

The elastic portion 41 is provided around the end of the waterproof covering portion 40 in a watertight manner. Further, the elastic portion 41 is formed in a shape (see the shape in the drawing) so as to be elastically deformed when receiving the pressing from the second connector 25 and to return to the original state when the pressing is released. I have. In other words, the first core body 26 is formed to be able to retreat when receiving the pressing from the second connector 25 and to return the position of the first core body 26 to the original position when the pressing is released. Have been.

The fixing member connecting portions 42, 42
1 is watertight coupled. Also, the fixing member connecting portion 4
Each of the reference numerals 2 and 42 has a portion that is folded back to the rear side of the fixing members 28 and 28, and can maintain a watertight state. In this embodiment, the fixing member connecting portion 4
2, 42 are provided with through holes 43, 43 and through holes 4 for first fitting portions 46, 46 and screw insertion holes 47, 47 to be described later.
4 and 44 are formed.

The fixing members 28, 28 are made of synthetic resin and are formed in a substantially flat plate shape. The fixing members 28, 28 are housed and fixed in the recesses 45 of the boarding port 22, and are arranged so as to face the second connector 25. ing. Further, the fixing members 28, 28 are formed with first fitting portions 46, 46 and screw insertion holes 47, 47, respectively. The fixing members 28, 28 are members for connecting the elastic member 27 in the present embodiment, and are also members for fixing to the boarding port 22.

The first fitting portions 46, 46 are convex portions for positioning with respect to the second connector 25, and curved surfaces 48, 48 are provided around the respective distal ends thereof. When the concave portions 46 and 46 are used, the second fitting portions 55 and 55 described later are formed as convex portions.) Further, the fixing members 28 are formed to be long along the longitudinal direction (the curved surface 48 is formed at least in a direction in which the door shifts). Furthermore, it is arranged on both sides of the first core body 26 so as to sandwich it (the first fitting portion 46 is
It may be three or more. It is preferable that it is near the first core body 26 in order to improve the positioning accuracy).

Reference numerals 49, 49 indicate screw insertion holes 4
7 shows bolts to be inserted through the members 7 and 47. The bolts 49, 49 are adapted to be screwed into screw portions formed in the recesses 45 of the boarding port 22.

Next, the second connector 25 will be described in more detail with reference to FIGS. 1, 4 and 5.

The second core body 32 has a secondary core 50 and a secondary coil 51. The secondary core 50 is formed by sintering ferrite powder, for example, and has an annular groove 52 having a concave cross-sectional shape on one surface. The secondary coil 51 is formed by winding an electric wire, and is accommodated in the annular groove 52.

The covering member 33 is made of a synthetic resin and is formed in a substantially flat plate shape. The covering member 33 is housed and fixed in the concave portion 53 of the edge portion 24 and is disposed so as to face the first connector 23. . Further, the covering member 33 has a bonding portion 54.
And a pair of second fitting portions 55, 55 and screw insertion holes 56, 56
Are formed.

The joining portion 54 is a portion that covers the one surface side of the second core body 32 and is brought into proximity (or contact) with the waterproof covering portion 40 of the first connector 23 by closing the door. It has become. In the present embodiment, the joining portion 54 is formed such that the distal end surface protrudes from the edge portion 24 (this is not limited to this. That is, even if the joining portion 54 is flush with the edge portion 24). Good).

The second fitting portions 55, 55 are positioning concave portions (bottomed cylindrical shapes) corresponding to the first fitting portions 46, 46 of the first connector 23, and are provided inside the respective distal ends thereof. Are provided with curved surfaces 57, 57. Further, the cover member 33 is formed to be long along the longitudinal direction (the curved surface 57 is formed at least in a direction in which the door shifts). Furthermore, it is arrange | positioned so that it may be pinched | interposed on both sides of the joining part 54 (The 2nd fitting part 55 shall not be limited to a pair but may be three or more. Preferably near the joint 54).

Reference numerals 58, 58 indicate screw insertion holes 5
6 shows bolts that are inserted into the bolts 6 and 56. The bolts 58, 58 are adapted to be screwed into screw portions formed in the concave portions 53 of the edge portion 24.

The elastic member 27 and the fixing members 28, 2
8 and the covering member 33 are the waterproof covering portions 4 in the present embodiment.
0 and the joining portion 54 (electromagnetic joining between the first core body 26 and the second core body 32), which will be described later.
6 and 46 and the second fitting portions 55 and 55 are formed such that fitting described later is performed first.

In the above configuration, as shown in FIG. 6, when the door is closed with respect to the vehicle body, the first connector 23 and the second connector 25 are abutted. At this time, the first fitting portions 46, 46 and the second fitting portion 55,
55 is fitted to perform positioning, and the waterproof covering portion 40 and the joining portion 54 come close to each other and are electromagnetically joined.
When a mutual induction action occurs between the primary coil 38 and the secondary coil 51, power supply from the vehicle body to the door is started.

As shown in FIG. 7, even if the door is suddenly closed with respect to the vehicle body and the waterproof cover 40 and the joint 54 come into contact with each other, the waterproof cover 40 and the first The one core body 26 recedes, and the impact at the time of contact is absorbed.

Further, even if the position of the second connector 25 is shifted with respect to the first connector 23 due to poor installation of the door or a change with time, the first fitting portions 46, 4
The misalignment is corrected by the fitting of the second fitting portion 55 with the second fitting portion 55 (electromagnetic bonding is ensured. In the conventional example, it is useful because there is no mechanism for absorbing the misalignment).

As described above, even when the waterproof covering portion 40 and the joining portion 54 come into contact with each other, the elastic covering portion 41 causes the waterproof covering portion 40 and the first core body 26 to retreat to absorb the impact at the time of contact. Can be. Therefore, it is possible to prevent the first connector 23 and / or the second connector 25 from being damaged by collision. Further, even if the waterproof covering portion 40 and the first core body 26 can be retracted, it is possible to prevent water from entering from the retreating portion.

Since there is no permanent magnet as in the conventional example, it is not affected by iron powder and the like (in the conventional example, if iron powder or the like is attached, the iron powder or the like is attached). And it could not be electromagnetically joined). There is also an advantage that a simple structure can be achieved.

Next, with reference to FIG. 8, an example of power supply to an automobile equipped with the electromagnetic induction type connector 21 will be described. FIG. 8 is a block diagram showing one example.

Referring to FIG. 8, a vehicle body 61 is shown.
Electromagnetically, power is supplied from the vehicle body 61 to each door body 62 by a mutual induction action at each door connecting portion with a plurality of door bodies 62 provided to be openable and closable with respect to the vehicle body 61. An inductive connector 21 is provided.
The electromagnetic induction type connector 21 is provided by the number of the door bodies 62 and includes the first connector 23 provided on the vehicle body 61 side and the second connector 25 provided on the corresponding door body 62. It is configured. Each first connector 23 is connected to a power supply line 63 provided on the vehicle body 61, and the second connector 25 is connected to a power supply line 64 provided on the corresponding door body 62.

As the door body 62, as shown in the drawing, the doors 62a, the slide door 62b, and the rear hatch 62c on the driver's seat side and the passenger's seat side are exemplified. The vehicle body 61 corresponds to one of the two members described in the claims, and the door body 62 corresponds to the other of the two members described in the claims.

The above components will be described. The vehicle body 61 is provided with a power generator 65, a battery 66, a control device 67, and the like, in addition to the first connectors 23 and the power supply lines 63. The power generator 65 and the battery 66 are provided in the engine room 68, and the power generated by the power generator 65 is charged in the battery 66. Further, a power supply line 63 is connected to the battery 66, and the control device 67 receives power supply therefrom. Control device 6
7 is provided with, for example, a motor 69 and the like.

Each first connector 23 is connected to a primary coil oscillation drive control device 3 provided between the first connector 23 and the power supply line 63.
1 (not shown, see FIG. 1) controls the oscillation drive.

The door 62a is provided with a battery 70, a control device 71 and the like in addition to the second connector 25 and the power supply line 64. The battery 70 is connected to the second connector 2 via a rectifying circuit and a charging circuit (not shown).
5 is charged. Further, a power supply line 64 is connected to the battery 70. The control device 71 is connected to the power supply line 64, and receives power supply therefrom. The control device 71 is provided with, for example, a motor 72 and the like.

The slide door 62b is provided with a battery 73, a control device 74, and the like in addition to the second connector 25 and the power supply line 64. Battery 7
Reference numeral 3 is for charging the induced electromotive force generated in the second connector 25 via a rectifier circuit and a charging circuit (not shown). Further, a power supply line 64 is connected to the battery 73. The control device 74 includes a power supply line 64
, And receive power supply therefrom. The control device 74 is provided with, for example, a motor 75 and the like.

The rear hatch 62c has a battery 7 in addition to the second connector 25 and the power supply line 64.
6 and a control device 77 are provided. Battery 76
Is configured to charge the induced electromotive force generated in the second connector 25 via a rectifying circuit and a charging circuit (not shown). The power supply line 64 is connected to the battery 76. The control device 77 is connected to the power supply line 64 and receives power supply therefrom. The control device 77 is provided with, for example, a motor 78 and the like.

In the above configuration, the electromagnetic induction type connector 21 operates as follows. First, when a key (not shown) is inserted into the ignition switch and turned on, power is supplied to the primary coil oscillation drive control device 31 (not shown; see FIG. 1) connected to the power supply line 63. Next, when power is supplied to the primary coil oscillation drive control device 31 (not shown; see FIG. 1), the primary coil 38 of each first connector 23 is provided with a primary coil oscillation drive control device 31 (not shown). An alternating electromotive force is generated by the oscillation drive shown in FIG. 1).

When the door 62 a is closed with respect to the vehicle body 61, an induced electromotive force is generated in the secondary coil 51 by the mutual induction with the primary coil 38. The generated induced electromotive force charges the battery 70 via a rectifier circuit and a charging circuit (not shown). The door 62
When “a” is open with respect to the vehicle body 61, power is supplied from the battery 70 to the power supply line 64.

When the slide door 62 b is closed with respect to the vehicle body 61, an induced electromotive force is generated in the secondary coil 51 by the mutual induction with the primary coil 38. The generated induced electromotive force charges the battery 73 via a rectifier circuit and a charging circuit (not shown). still,
When the slide door 62b is open with respect to the vehicle body 61, power is supplied from the battery 73 to the power supply line 64.

When the rear hatch 62 c is closed with respect to the vehicle body 61, an induced electromotive force is generated in the secondary coil 51 by the mutual induction with the primary coil 38. The generated induced electromotive force charges the battery 76 via a rectifier circuit and a charging circuit (not shown). When the rear hatch 62c is open with respect to the vehicle body 61, power is supplied from the battery 76 to the power supply line 64.

In addition, it goes without saying that the present invention can be variously modified and implemented without departing from the gist of the present invention. That is, in the above, the example of the two members described in the claims is a vehicle body and a door body (a door, a sliding door, a rear hatch). However, the invention is not limited thereto. For example, a tuner and a speaker in audio are two members. Other examples include a door steering (separate body: steering portion) and an automobile seat (separate body: seat portion). It is sufficient that two members need to supply power by electromagnetic induction.

In the above description, the supply of power has been described, but it is also assumed that it is used for signal transmission. further,
In the above, the first connector 23 is configured by including the elastic member 27 and the pair of fixing members 28, 28, but the second connector 25 may be configured in this manner. Furthermore, in the above description, the waterproof covering portion 40 of the elastic member 27 covers the first core body 26, but is not limited to this. For example, a waterproof portion (second connector 25
And the elastic portion 41 of the elastic member 27 may be connected thereto in a watertight manner.

[0055]

As described above, according to the first aspect of the present invention, the first core member or the second core member can be retracted by the elastic member. Therefore, it is possible to prevent the first connector and / or the second connector from being damaged by collision.

According to the second aspect of the present invention,
Even if the first core body or the second core body can be retracted, it is possible to prevent water from entering from the retreating portion.

According to the third aspect of the present invention,
Even if the first core body or the second core body can retreat, it is possible to prevent water from entering from the retreating part.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an electromagnetic induction type connector according to the present invention.

FIG. 2 is a plan view of a first connector.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a plan view of a second connector.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a cross-sectional view illustrating a joined state of the first connector and the second connector (when the door is normally closed).

FIG. 7 is a cross-sectional view illustrating a joined state of the first connector and the second connector (when the door is suddenly closed).

FIG. 8 is a block diagram showing an example of power supply of an automobile provided with the electromagnetic induction type connector of FIG.

FIG. 9 is a perspective view showing a side portion of a conventional automobile.

FIG. 10 is a sectional view of a conventional electromagnetic induction type connector.

[Explanation of symbols]

 Reference Signs List 21 electromagnetic induction type connector 22 boarding gate 23 first connector 24 edge 25 second connector 26 first core body 27 elastic member 28 fixing member 32 second core body 33 covering member 37 primary core 38 primary coil 40 waterproof covering portion 41 elasticity Part 42 fixing member connecting part 46 first fitting part 50 secondary core 51 secondary coil 54 joining part 55 second fitting part

Continuation of the front page (72) Inventor Naoya Kojima 1500 Onjuku, Susono City, Shizuoka Prefecture Inside Yazaki Corporation

Claims (3)

[Claims] A first connector on one side and a second connector on the other side for supplying power or transmitting a signal from one of the two members to the other by a mutual induction action by bringing the two members close to each other. An electromagnetic induction type connector, wherein the first connector includes a first core body having a primary core and a primary coil, and the second connector has a secondary core and a secondary coil, and the first core body A second core body in which an induced electromotive force is generated, and either one of the first connector or the second connector is provided with the first core body or the one provided on one of the two by the contact of the other. An electromagnetic induction type connector further comprising an elastic member capable of retracting the second core body and a fixing member to which the elastic member is connected. 2. The electromagnetic induction type connector according to claim 1, wherein a connection state between the elastic member and the fixing member is made water-tight, and the first core provided on one of the elastic members is provided. An electromagnetic induction type connector, wherein a waterproof covering portion is formed to cover the body or the second core body in a watertight manner. 3. The electromagnetic induction type connector according to claim 1, wherein a connection state between the elastic member and the fixing member is made watertight, and the first core member or the second member provided on one of the two members. An electromagnetic induction-type connector, wherein a water-proof portion is provided on the core body so that the elastic member is connected in a water-tight manner.