JP2003164103A - Output wire equipped with seal mechanism for magnet- type generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an output wire equipped with an inexpensive seal mechanism capable of sufficiently securing sealability. <P>SOLUTION: The seal mechanism 4 is equipped to the output wire 3 made of a core wire 3b that is connected to a generator coil 2c of a stator 2 and coated with an insulating membrane 3c. The seal mechanism 4 comprises a seal material 4a permeating the core wire 3b made by cutting a part of the insulating membrane 3c and exposing it. The seal material 4a is accommodated in a holder case 4b that holds the output wire 3. The holder case 4b is filled with the other seal material 4e. The seal mechanism 4 is provided outside an engine case 1 that contains the stator 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output wire with a sealing mechanism for a magnet type generator.

[0002]

2. Description of the Related Art A magnet type generator often used as a generator for a motorcycle or the like has a rotor with a magnet connected to a crankshaft of an engine (internal combustion engine) and a generator coil arranged to face the magnet of the rotor. And a stator, and is configured to supply the output of the generator to an electric device or an electric component such as a regulator outside the engine case via an output wire in which a core wire is connected to the generator coil. Then, in order to cool the power-generating coil that generates heat, measures such as spraying cooling oil on the power-generating coil are taken (for example, see JP 2001-45714 A).

In the magnet type generator using the cooling oil, the cooling oil may leak to the outside of the engine case through the output wire.
The connection between the power generation coil and the core wire of the output wire is covered with a sealing material to ensure sealing performance and prevent leakage of the cooling oil.

[0004]

However, since the connecting portion between the power generating coil and the core wire of the output wire is located very close to the stator, the vibration and heat generation of the stator are directly received and the sealing performance is hindered. There was a problem that they were easily vulnerable.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and provide an inexpensive output wire with a sealing mechanism which can sufficiently secure the sealing property.

[0006]

An output wire with a sealing mechanism for a magnet type generator according to the present invention is provided with a sealing mechanism on an output wire in which a core wire connected to a generator coil of a stator is covered with an insulating film. Is characterized in that it comprises a sealing material that has penetrated into the exposed core wire by partially cutting off the insulating film.

The seal material is housed in a holder case that holds the output wire.

Another sealing material is filled inside the holder case.

The seal mechanism is provided outside the engine case containing the stator.

[0010]

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 block diagram of a stator side of a magnet type generator according to an embodiment, FIG. 2 is a sectional view of a seal mechanism, and FIG. 3 is a perspective view of the seal mechanism.

1 to 3, 1 is a part of an engine case, 2 is a stator of a generator built in the engine case 1, and 3 is an output of the generator and a regulator outside the engine case 1. Represents an output wire for supplying to electrical equipment and parts of.

The stator 2 is a known stator, and includes a hollow cylindrical yoke portion 2a and a plurality of salient pole portions 2b protruding radially from the outer circumference of the yoke portion 2a. For example, a three-phase power generation coil 2c is wound around 2b. The yoke portion 2a and the salient pole portion 2b are formed by punching a steel plate by press working or the like, stacking a plurality of the punched steel plates, and fixing them with a rivet 2d. The stator 2
It is fixed to the wall portion on the engine case 1 side through fixing fittings such as bolts and screws in a plurality of axial mounting holes 2e formed in the yoke portion 2a. Although not shown, a field portion of a known rotor connected to the crankshaft is arranged to face the outer circumference of the stator 2 with a slight gap therebetween. The field part is configured such that a plurality of magnet parts are located at equal intervals in the circumferential direction, and the yoke part is located between adjacent magnet parts.
When the magnet portion rotates with the rotation of the crankshaft, the magnetic flux changes in each salient pole portion 2b, and a three-phase AC voltage is generated as a whole of the plurality of magneto coils 2c. The power generation coil 2c generates heat with power generation, but cooling oil is sprayed on the power generation coil 2c, and heat generation of the power generation coil 2c is suppressed.

The plurality of magneto coils 2c as a whole have three lead wires 2f, and the output wire 3 is
It has three power supply lines 3a. Each lead wire 2f is connected to the core wire 3b of the corresponding power supply wire 3a. Each power supply line 3a is configured by covering the core wire 3b with an insulating film 3c,
The three power supply lines 3a are housed in a tubular cover 3d. The connecting portion 3e of the output wire 3 to the lead wire 2f is provided with a yoke portion 2a of the stator 2 for preventing fluctuations.
It is held by a holding metal fitting 3g fixed by a screw 3f. A grommet 3h is fitted around the cover 3d, and the grommet 3h is housed and fixed in a wire drawing groove formed in the engine case 1. Output wire 3
The connector 3i is connected to the tip of the connector 3i.
i is wired to a regulator or the like (not shown).

In the output wire 3, a seal mechanism 4 is provided at an appropriate portion between the connector 3i and the grommet 3h. The sealing mechanism 4 includes a sealing material 4a as shown in FIG. 2 for each power supply line 3a. The sealing material 4a is configured by partially cutting off the insulating film 3c of the power supply wire 3a, dropping resin as a sealing material onto the core wire 3b formed of a twisted wire exposed to the outside, and permeating the core wire 3b to solidify. Examples of the resin used include ester resins. The sealing material 4a is housed in a holder case 4b that firmly holds the output wire 3. The holder case 4b has two split cases 4c that can be locked to each other.
4d. The inside of the holder case 4b is filled with another sealing material 4e, for example, silicone resin.

On the stator side of the generator configured as described above, when the cooling oil is sprayed on the generator coil 2c of the stator 2, the cooling oil is also applied to the wire connecting portion 3e of the output wire 3 and is cooled from the wire connecting portion 3e. The oil enters and tries to leak out of the engine case 1 through the output wire 3. However, the output wire 3 is provided with the sealing mechanism 4 as described above, and the sealing material 4a penetrates into the core wire 3b made of the twisted wire of the power supply wire 3a and is solidified. As a result, the tip side of the output wire 3 is, so to speak. Since the lid is in a closed state, the cooling oil is
Therefore, almost no penetration can be made into the output wire 3. Therefore, it becomes possible to prevent the leakage of the cooling oil to the outside of the engine case 1.

The output wire 3 is attached to the holder case 4b.
The output wire 3 is firmly held by the output wire 3 because the sealing material 4a is housed inside the holder case 4b.
Even if an external force is applied to the seal member 4a, the seal member 4a does not directly affect the seal member 4a.
The sealing property of the sealing material 4a can be ensured without peeling from the b. Furthermore, since the other sealing material 4e is filled in the holder case 4b, the sealing performance of the sealing material 4a can be made more reliable. Further, since the seal mechanism 4 is provided outside the engine case 1, the sealability can be secured without directly receiving the temperature and vibration in the engine case 1.

The seal mechanism 4 of the above embodiment is used.
Is configured by providing the holder case 4b and filling the inside of the holder case 4b with another sealing material 4e. However, the sealing mechanism 4 of the present invention is not limited to such a configuration. The holder case 4b may not be provided, and only the sealing material 4a may be used. Alternatively, the inside of the holder case 4b may not be filled with another sealing material 4e and may be left as a space. Furthermore, although the seal mechanism 4 of the above-described embodiment is provided outside the engine case 1, it may be provided inside the engine case 1.

[0019]

The output wire with the seal mechanism of the magnet type generator according to the present invention is provided with a seal mechanism on the output wire in which the core wire connected to the generator coil of the stator is covered with an insulating film. It is configured to have a sealing material that has been partially cut off and has penetrated into the exposed core wire, so that the sealing material prevents the problem that cooling oil enters the output wire from the wire connection part of the stator and leaks to the outside of the engine case. In addition, such a configuration can be realized at low cost.

Further, by accommodating the seal material in the holder case for holding the output wire, it is possible to prevent a problem that the external force applied to the output wire directly acts on the seal material and the sealing property is hindered.

Further, by filling the inside of the holder case with another sealing material, the sealing performance can be made more reliable.

Further, by providing the seal mechanism outside the engine case containing the stator, it is possible to secure the sealing property without directly receiving temperature and vibration in the engine case.

[Brief description of drawings]

FIG. 1 is a configuration diagram on a stator side of a magnet type generator according to an embodiment of the present invention.

FIG. 2 is a sectional view of a seal mechanism.

FIG. 3 is a perspective view of the sealing mechanism.

[Explanation of symbols]

1 engine case 2 stator 2c generator coil 3 output wires 3b core wire 3c insulation film 4 Sealing mechanism 4a Seal material 4b holder case 4e Other sealing materials

Claims (4)

[Claims] 1. A seal mechanism is provided on an output wire in which a core wire connected to a generator coil of a stator is covered with an insulating film, and the seal mechanism is a sealing material that penetrates into a core wire exposed by partially cutting off the insulating film. An output wire with a sealing mechanism for a magnet type generator, comprising: 2. The output wire with a seal mechanism for a magneto-generator according to claim 1, wherein the sealing material is housed in a holder case that holds the output wire. 3. The output wire with a seal mechanism for a magneto-generator according to claim 2, wherein another seal material is filled inside the holder case. 4. The output wire with a seal mechanism for a magneto-generator according to claim 1, wherein the seal mechanism is provided outside an engine case containing the stator.