JP2003068543A - Electromagnetic induction type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic induction type connector that can correct misalignment. SOLUTION: The electromagnetic induction type connector has primary and secondary coil units 23 and 25. The primary coil unit 23 has a first core body 26 having a primary coil 33, and a first core body case 27 where a recessed first connection section 37 that accommodates the first core body 26 and at the same time has a tapered first side 39 is formed. The secondary coil unit 25 has a second core body 28 having a secondary coil 44, a second core body case 29 where a projecting second connection section 48 that accommodates the second core body 28 and at the same time has a tapered second side 50 opposite to the first side 39 of the first core body case 27 is formed, and a base 31 where an accommodation section 51 for accommodating the second core body case 29 is formed. At the same time, the second core body case 29 accommodated at the accommodation section 51 of the base 31 can be moved along a mounting surface 53 of the secondary coil unit 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic induction connector in which 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.

[0002]

2. Description of the Related Art As an electromagnetic induction type connector of this type,
A well-known type is used for supplying electric power between two members such as a body of an automobile and a door.
That is, as shown in FIGS. 8 and 9, a primary coil unit 4 that constitutes an electromagnetic induction type connector is provided in the vehicle entrance 3 of the vehicle body 2 of the automobile 1. Further, the door 5 that opens and closes the boarding gate 3 is provided with a secondary coil unit 6 that also constitutes an electromagnetic induction type connector.

A recess 7 is formed in the primary coil unit 4.
Further, a guide mechanism 9 including a moving base 8 is provided, and the primary core 10 is slidably supported by the guide mechanism 9 (sliding in the opening / closing direction of the door 5). Further, coil springs 11, 11 are provided between the bottom of the recess 7 and the moving base 8. Furthermore, an annular permanent magnet 12 is provided on the primary core 10 side of the moving base 8.

The primary core 10 is composed of a disc body 13 fixed to the moving base portion 8 and a columnar body 14 projectingly formed at the center of the disc body 13. Further, a primary coil 15 around which an electric wire is wound is provided around the cylindrical body 14.

The secondary coil unit 6 has a cylindrical wall 1
A secondary core 18 having 6 and a bottom wall 17 is provided.
In addition, the cylindrical body 1 of the primary core 10 is provided inside the cylindrical wall 16.
There is provided a secondary coil 19 having a space into which the 4 and the primary coil 15 can be inserted. The secondary coil unit 6 includes a permanent magnet 12 of the primary coil unit 4.
A permanent magnet 20 similar to the above is provided near the opening edge of the cylindrical wall 16.

In the above structure, the door 5 has the vehicle body 2
Primary core 10 and secondary core 18 when closed against
Are matched. Further, the permanent magnets 12 and 20 attract each other, and the primary core 10 and the secondary core 18 are adjacently joined. As a result, the primary coil 15 and the secondary coil 1
Mutual inductive action occurs between the vehicle body 9 and the door 9, and power supply from the vehicle body 2 to the door 5 is started.

[0007]

In the prior art described above, if the door 5 is improperly erected, the positions of the primary coil unit 4 and the secondary coil unit 6 are displaced, and the primary core 10 and the secondary core 18 are displaced. There is a risk that the parts (the primary coil 15 and the secondary coil 19) may collide with each other.
Regarding the above-mentioned deviation, it may be considered that the standing of the door 5 may deteriorate due to aging. Further, it may be considered that the mounting state of the primary coil unit 4 and the secondary coil unit 6 is bad.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an electromagnetic induction type connector capable of correcting the positional deviation between the primary coil unit and the secondary coil unit.

[0009]

In order to solve the above-mentioned problems, the electromagnetic induction type connector of the present invention according to claim 1 is characterized in that two members are brought close to each other and electric power is applied from one of the two members to the other by mutual induction. An electromagnetic induction type connector comprising the one-side primary coil unit and the other-side secondary coil unit for supplying the above, wherein one of the primary coil unit and the secondary coil unit is: A first core body having a first core and a first coil; and a first core body case that accommodates the first core body and forms a concave first coupling portion having a tapered first side surface, The other one of the one is a second core body having a second core and a second coil, and a taper that houses the second core body and faces the first side surface of the first core body case. A second core body case having a convex second coupling portion having a second side surface and a base having a housing portion for housing the second core body case, and the housing portion of the base. It is characterized in that the second core body case accommodated in the above can be moved along the attachment surface for the other one.

An electromagnetic induction connector according to a second aspect of the present invention is the electromagnetic induction connector according to the first aspect, wherein a lubricant or a lubricant is provided between the accommodating portion of the base and the second core body case. It is characterized by the provision of lubricating oil.

An electromagnetic induction type connector according to a third aspect of the present invention is the electromagnetic induction type connector according to the second aspect, characterized in that a compressible elastic member is provided on the second core body case side. .

An electromagnetic induction connector according to a fourth aspect of the present invention is the electromagnetic induction connector according to the first aspect, wherein the second core between the accommodating portion of the base and the second core body case. A sliding elastic member that is slidable and compressible with respect to the housing portion is provided on the body case side.

According to the present invention described in claim 1,
When the two members come close to each other, the convex second joint portion of the second core body case is inserted into the concave first joint portion of the first core body case. The first core body case accommodates the first core body having the first coil, and the second core body case accommodates the second core body having the second coil. Mutual inductive action occurs in the coil and the second coil, and power supply from one of the two members to the other is started. what if,
When the positions of either the primary coil unit or the secondary coil unit are displaced, when the two members come close to each other, the second core is attached to the edge portion (edge portion of the first side surface) of the first coupling portion of the first core body case. The second side surface of the second joint portion of the body case contacts. Further, since the second side surface is formed in a tapered shape, when the two members approach each other, the second core body case is attached to the second core body case side by sliding contact between the edge portion and the second side surface. Move along. As a result, the second coupling portion is completely inserted into the first coupling portion, mutual induction action occurs in the first coil and the second coil, and power supply from one of the two members to the other is started.

According to the present invention described in claim 2,
The second core body case moves smoothly due to the lubricant or the lubricating oil.

According to the present invention described in claim 3,
The elastic member moves the second core body case also in the other direction along the mounting surface on the second core body case side. That is, the second core body case also moves in the compression direction of the elastic member (the second core body case moves three-dimensionally). Since the elastic member is compressible, it functions as a cushioning member when the first joint portion of the first core body case and the second joint portion of the second core body case come into contact with each other due to the displacement.

According to the present invention described in claim 4,
The sliding elastic member moves the second core body case three-dimensionally. In addition, the second core body case moves smoothly. Since the sliding elastic member is compressible, it functions as a cushioning member when the first joint portion of the first core body case and the second joint portion of the second core body case come into contact with each other due to the displacement.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of an electromagnetic induction type connector of the present invention. 2 is a front view of the primary coil unit of FIG. 1, FIG. 3 is a front view of the secondary coil unit of FIG. 1, FIG. 4 is a sectional view taken along line AA of FIG.
FIG. 5 is a sectional view showing an example in which the second core body case is moved from the state of FIG.

In FIG. 1, reference numeral 21 indicates an electromagnetic induction type connector. The electromagnetic induction type connector 21
Is a primary coil unit 23 provided at a boarding port 22 of an automobile body (corresponding to one of the two members recited in the claims) and an automobile door (of the two members recited in the claims). The secondary coil unit 25 is provided on the edge portion 24 (corresponding to the other one). Further, the electromagnetic induction connector 21 of the present embodiment is configured such that when the primary coil unit 23 and the secondary coil unit 25 come close to each other, electric power is supplied from the vehicle body to the door by a mutual induction action. Further, the electromagnetic induction type connector 21 of the present embodiment is configured to be able to absorb the positional deviation of the primary coil unit 23 or the secondary coil unit 25.

The primary coil unit 23 accommodates the first core body 26 and the first core body 26 and the loading port 22.
And a first core body case 27 fixed to. In addition, the secondary coil unit 25 is provided with the first core body 2 when the door is closed with respect to the vehicle body.
6, a second core body 28, a second core body case 29 accommodating the second core body 28, and a second core body case 2
9, the elastic member 30 fixed to 9, and the second core body case 29
And a base 31 that accommodates the elastic member 30 and is fixed to the edge portion 24 of the door.

First, the primary coil unit 23 will be described in more detail with reference to FIGS. 1 and 2.

The first core body 26 includes a primary core 32 as a first core and a primary coil 33 as a first coil.
And is configured. The primary core 32 is formed by sintering ferrite powder, for example, and has an annular groove 34 having a concave cross-sectional shape on one surface. The primary coil 33 is formed by winding an electric wire and is housed in the annular groove 34.

The first core body case 27 is made of synthetic resin and has a case body 35 and a lid 36. The case body 35 has a first coupling portion 37 into which the second core body case 29 of the secondary coil unit 25 is inserted, and a core body housing portion 38 in which the first core body 26 is housed. .

The first coupling portion 37 is formed in a concave shape in which the back wall side is narrower than the opening edge, and a plurality of guide ribs 40 are provided on the tapered first side surface 39 from the back wall to the vicinity of the opening edge. It is formed over. A flange 42 is provided around the opening edge of the first coupling portion 37 along the mounting surface 41 of the boarding port 22. The primary coil unit 23 is fixed to the boarding port 22 via the flange 42 by screwing or the like.

The core body accommodating portion 38 is connected to the back wall of the first coupling portion 37 and is formed so as to accommodate and retain the first core body 26. Core body housing 3
The lid 36 is adapted to be fitted to the opening edge of 8. The lid 36 is formed so as to be able to press the other surface of the first core body 26.

Next, the secondary coil unit 25 will be described in more detail with reference to FIGS. 1, 3 and 4.

The second core body 28 is similar to the first core body 26, and a secondary core 43 as a second core.
And a secondary coil 44 as a second coil. The secondary core 43 is formed by sintering ferrite powder, for example, and has an annular groove 45 having a concave cross-sectional shape on one surface. In addition, the secondary coil 4
4 is formed by winding an electric wire and is housed in the annular groove 45.

The second core body case 29 is made of synthetic resin and has a case body 46 and a lid 47. The case body 46 has a second coupling portion 48 that can be inserted into the first coupling portion 37 of the primary coil unit 23, and a flange 49 that is provided around the base end portion of the second coupling portion 48. ing.

The second joint portion 48 is formed in a convex shape in which the tip end portion is more recessed than the base end portion. The tapered second side surface 50 of the second coupling portion 48 is formed so as to match (parallel) or substantially match the first side surface 39 of the primary coil unit 23. On the other hand, the second coupling part 4
The inside of 8 is formed so that the second core body 28 can be accommodated and held therein. The lid 47 is fitted to the opening edge communicating with the inside of the second coupling portion 48. The lid body 47 is formed so as to be able to press the other surface of the second core body 28. The lid 47 is flush with the flange 49.

The elastic member 30 is compressible in the closing direction of the door, and may be rubber or leaf spring, for example. In this embodiment, foamed rubber is used (the use of oil-containing silicone eliminates the need for grease or the like described later. This corresponds to the slip elastic member described in the claims). The elastic member 30 is formed to be larger than the end portion of the flange 49 of the second core body case 29 (it is preferable that the elastic member 30 is formed to be large at least in the direction in which the second core body case 29 is lowered by its own weight). As a result, the amount of elastic deformation of the enlarged portion of the elastic member 30 becomes the amount of movement of the second core body case 29 in the direction in which the second core body case 29 is lowered by its own weight). The elastic member 30 is firmly fixed to the second core body case 29 (flange 49) using an appropriate fixing means such as an adhesive.

The base 31 is a substantially plate-shaped body made of synthetic resin, and has a recessed accommodating portion 51 and a retaining portion 52 for preventing slip-out that covers the edge of the accommodating portion 51. It is configured. The accommodating portion 51 is formed in the center of the base 31, and is capable of accommodating the second core body case 29 in which the second core body 28 is accommodated and the elastic member 30 is fixed. Further, the accommodating portion 51 has a shape larger than the outer shapes of the second core body case 29 and the elastic member 30 so that the accommodated second core body case 29 can be moved along the attachment surface 53 of the edge portion 24 of the door. Largely formed. The second core body case 29
Is preferably housed so as to have a slight gap with respect to the inner surface of the pressing portion 52 in order to prevent rattling. Further, between the elastic member 30 and the housing portion 51,
It should be filled with grease or the like (lubricant or lubricating oil. It is sufficient if the movement of the second core body case 29 is smooth, and there is no particular designation).

In the above structure, when the door is closed with respect to the vehicle body, the primary coil unit 23 and the secondary coil unit 25 are butted against each other. And
The convex second joint portion 48 of the second core body case 29 is inserted into the concave first joint portion 37 of the first core body case 27. The first core body case 27 accommodates the first core body 26 having the primary coil 33, and the second core body case 29 accommodates the second core body 28 having the secondary coil 44. Then, mutual induction action occurs in the primary coil 33 and the secondary coil 44, and the electric power supply from the vehicle body to the door is started.

If either the primary coil unit 23 or the secondary coil unit 25 is displaced, the opening edge of the first coupling portion 37 of the first core body case 27 (the edge portion of the first side surface 39). ), The second side surface 50 of the second coupling portion 48 of the second core body case 29 abuts (a shock at the time of abutment is absorbed by the elastic member 30). And the second side 5
Since 0 is formed in a taper shape, when the door closing operation proceeds, the second core body case 29 is slidably brought into contact with the opening edge of the first coupling portion 37 and the second side face 50 so that the edge portion of the door is closed. Two
4 along the mounting surface 53. As a result, the second coupling portion 48 of the secondary coil unit 25 is completely inserted into the first coupling portion 37 of the primary coil unit 23, and the primary coil 33 and the secondary coil 44 have a mutual induction action, and thus the vehicle body body. Starts to supply power to the door.

In the case where the above-mentioned displacement has occurred, the second core body case 29 is contacted and slidably contacted by the opening edge of the first joint portion 37 and the second side surface 50 of the second joint portion 48. 1
The second coupling portion 48 is completely inserted into the first coupling portion 37 of the primary coil unit 23 after moving (three-dimensional movement) in the arrow P to S direction of FIG. And

As described above, the electromagnetic induction type connector 21 of this embodiment
Is a primary coil unit 23 and a secondary coil unit 25.
It is possible to correct the positional deviation of. Therefore, it is possible to prevent collision and damage between the primary coil unit 23 and the secondary coil unit 25.

Next, an example of power feeding of a vehicle equipped with the electromagnetic induction connector 21 will be described with reference to FIG. FIG. 6 is a block diagram showing an example thereof.

In FIG. 6, a vehicle body 61 of an automobile
And a plurality of door bodies 62 that are openable and closable with respect to the vehicle body 61, each of the door connecting portions is provided with an electromagnetic power supply from the vehicle body 61 to the door bodies 62 by mutual induction. An inductive connector 21 is provided.
The electromagnetic induction type connectors 21 are provided by the number of the door bodies 62, and have the primary coil units 23 provided on the vehicle body 61 side and the secondary coil units 25 provided on the corresponding door bodies 62. Is configured. Each primary coil unit 23 is connected to a power supply line 63 provided on the vehicle body 61, and each secondary coil unit 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, each door 62a on the driver side and the passenger side, a slide door 62b, and a rear hatch 62c are listed. Further, 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.

Each of the above configurations will be described. In addition to the primary coil units 23 and the power supply line 63, the vehicle body 61 is provided with a generator 65, a battery 66, a control device 67, and the like. The generator 65 and the battery 66 are provided in the engine room 68, and the electric power generated by the generator 65 is the battery 66.
It is supposed to be charged. The power supply line 63 is connected to the battery 66, and the control device 6
7 is supplied with electric power from there. The control device 67 is provided with, for example, a motor 69.

Oscillation drive of each primary coil unit 23 is controlled by a primary coil oscillation drive control device (not shown) provided between the primary coil unit 23 and the power supply line 63. The primary coil oscillation drive control device (not shown) will be briefly described. The primary coil oscillation drive control device has a function as an inverter and is also configured to control the excitation of the primary coil 33.

In addition to the secondary coil unit 25 and the power supply line 64, the battery 62 is installed in the door 62a.
0, a control device 71 and the like are provided. Battery 70
Is configured to charge the induced electromotive force generated in the secondary coil unit 25 via a rectifying circuit and a charging circuit (not shown). In addition, the battery 70 has a power supply line 6
4 is connected. The control device 71 is connected to the power supply line 64 and receives power from the power supply line 64. The control device 71 includes a motor 72, for example.
Etc. are provided.

The slide door 62b is provided with a battery 73, a control device 74, etc. in addition to the secondary coil unit 25 and the power supply line 64. The battery 73 is configured to charge the induced electromotive force generated in the secondary coil unit 25 via a rectifying circuit and a charging circuit (not shown). A power supply line 64 is connected to the battery 73. The control device 74 is connected to the power supply line 64 and receives power from the power supply line 64. The control device 74 is provided with, for example, a motor 75.

The rear hatch 62c is provided with a battery 76, a control device 77, etc. in addition to the secondary coil unit 25 and the power supply line 64. The battery 76 is configured to charge the induced electromotive force generated in the secondary coil unit 25 via a rectifying circuit and a charging circuit (not shown). A 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 from the power supply line 64. The control device 77 is provided with, for example, a motor 78.

In the above structure, the electromagnetic induction type connector 21 operates as follows. First, when a key (not shown) is inserted into the ignition switch and turned on, electric power is supplied to the primary coil oscillation drive controller (not shown) connected to the power supply line 63. Next, when power is supplied to a primary coil oscillation drive control device (not shown), the primary coil 33 of each primary coil unit 23
An alternating electromotive force is generated by the oscillation drive of a primary coil oscillation drive controller (not shown).

When the door 62 a is closed with respect to the vehicle body 61, an induced electromotive force is generated in the secondary coil 44 due to the mutual induction action with the primary coil 33. The generated induced electromotive force charges the battery 70 through a rectifier circuit and a charging circuit (not shown). The door 62
When a is opened with respect to the vehicle body 61, electric power is supplied from the battery 70 to the power supply line 64.

When the sliding door 62b is closed with respect to the vehicle body 61, an induced electromotive force is generated in the secondary coil 44 by the mutual induction action with the primary coil 33. The generated induced electromotive force charges the battery 73 through 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 44 due to the mutual induction action with the primary coil 33. 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 opened with respect to the vehicle body 61, electric power is supplied from the battery 76 to the power supply line 64.

Next, another example of the secondary coil unit 25 will be described with reference to FIG. FIG. 7 is a sectional view showing another example of the secondary coil unit of FIG.
The members that are basically the same as the configuration of the secondary coil unit 25 are given the same reference numerals and the description thereof is omitted. Also, in the case of similarity, a reference numeral with a dash will be attached.

In FIG. 7, the secondary coil unit indicated by reference numeral 25 'is the accommodation portion 51 (see FIG. 1).
It has a base 31 'made of synthetic resin in which a housing portion 51' having a shallower depth and a holding portion 52 are integrally formed. A second core body case 29 accommodating the second core body 28 is accommodated in the shallow accommodating portion 51 ′ so as to be movable along the mounting surface 53. It should be noted that the housing portion 51 '
Between the second core body case 29 and the second core body case 29, a lubricant or a lubricating oil (the above grease or the like) for allowing the second core body case 29 to move smoothly is provided.

Therefore, even with the secondary coil unit 25 'having the above-mentioned structure, it is naturally possible to correct the positional deviation as described above. This can prevent the primary coil unit 23 (see FIG. 1) and the secondary coil unit 25 'from colliding and being damaged.

In addition, it goes without saying that the present invention can be modified in various ways without departing from the spirit of the present invention. That is, although the example of the two members described in the claims is the vehicle body and the door body (door, slide door, rear hatch) in the above, the present invention is not limited to this. For example, a tuner and a speaker in audio are two examples. Other examples include steering of a door (separate side: steering section) and a seat of an automobile (separate side: seat section). Any two members that need to be supplied with electric power by electromagnetic induction may be used. Further, although the power supply has been described above, it is also used for signal transmission.

[0051]

As described above, according to the present invention described in claim 1, it is possible to correct the positional deviation between the primary coil unit and the secondary coil unit. Therefore,
It is possible to prevent collision and damage between the primary coil unit and the secondary coil unit. Since the present invention does not use the coil spring, it is possible to prevent the generation of abnormal noise due to the vibration. There was a risk of noise.

According to the present invention described in claim 2,
In addition to the effect of the invention of claim 1, the second core body case can be moved smoothly.

According to the present invention described in claim 3,
In addition to the effect of the invention of claim 2, it is possible to move the second core body case also in the compression direction of the elastic member. In addition, it is possible to absorb a shock when the first joint portion of the first core body case and the second joint portion of the second core body case are in contact with each other.

According to the present invention described in claim 4,
In addition to the effect of the first aspect of the invention, the second core body case can be moved in the compression direction of the sliding elastic member. In addition, the second core body case can be moved smoothly. Further, it is possible to absorb a shock when the first joint portion of the first core body case and the second joint portion of the second core body case are in contact with each other.

[Brief description of drawings]

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

FIG. 2 is a front view of the primary coil unit of FIG.

FIG. 3 is a front view of the secondary coil unit of FIG.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view showing an example (a state where an elastic member is compressed) in which the second core body case is moved from the state of FIG.

FIG. 6 is a block diagram showing an example relating to power supply of a vehicle equipped with the electromagnetic induction type connector of FIG. 1.

7 is a cross-sectional view showing another example of the secondary coil unit of FIG.

FIG. 8 is a perspective view showing a side portion of a conventional automobile.

FIG. 9 is a cross-sectional view of a conventional electromagnetic induction connector.

[Explanation of symbols]

21 Electromagnetic induction type connector 23 Primary coil unit 25 Secondary coil unit 26 First core body 27 First core body case 28 Second core body 29 Second core body case 30 elastic member 31 base 32 primary core (first core) 33 Primary coil (first coil) 37 First coupling part 39 First side 41 Mounting surface 43 Secondary core (second core) 44 Secondary coil (second coil) 48 Second joint 50 Second side 51 accommodation 53 Mounting surface

Claims (4)

[Claims] 1. An electromagnetic induction comprising a primary coil unit on one side and a secondary coil unit on the other side for supplying electric power from one of the two members to the other by mutual induction by bringing the two members close to each other. A connector, wherein one of the primary coil unit and the secondary coil unit has a first core body having a first core and a first coil, and a tapered shape that accommodates the first core body. A first core body case having a concave first coupling portion having a first side surface of the second core body having a second core and a second coil; A second core body case that houses a second core body and has a convex second coupling portion that has a tapered second side surface that faces the first side surface of the first core body case; Core body case An electromagnetic induction, comprising: a base formed with a housing portion that accommodates the second core body case, the second core body case housed in the housing portion of the base being movable along a mounting surface for the other one. Type connector. 2. The electromagnetic induction connector according to claim 1, wherein a lubricant or a lubricating oil is provided between the accommodating portion of the base and the second core body case. Type connector. 3. The electromagnetic induction connector according to claim 2, wherein a compressible elastic member is provided on the second core body case side. 4. The electromagnetic induction type connector according to claim 1, wherein the second core body case side between the housing portion of the base and the second core body case is slid with respect to the housing portion. An electromagnetic induction connector characterized by being provided with a compressible sliding elastic member.