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Motive power transmission device

A technology of power transmission device and driving force, applied in transportation and packaging, magnetic circuit rotating parts, magnetic drive clutch, etc., can solve the problem of inability to properly separate the armature

Inactive Publication Date: 2019-08-02
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] When the friction surface of the rotor is bonded to the friction surface of the armature, there will be problems such as the inability to properly separate the armature from the rotor, so it is not good

Method used

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  • Motive power transmission device
  • Motive power transmission device
  • Motive power transmission device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0035] For this embodiment, refer to Figure 1 to Figure 8 Be explained. In this embodiment, for the figure 1 An example in which the power transmission device 10 is applied to the compressor 2 of the illustrated vapor compression refrigeration cycle 1 will be described.

[0036] The refrigeration cycle 1 functions as a device that adjusts the temperature of air blown into the vehicle interior in a vehicle air conditioner that performs air conditioning in the vehicle interior. The refrigeration cycle 1 is constituted by a closed circuit consisting of a compressor 2 that compresses and discharges refrigerant, a radiator 3 that dissipates heat from the refrigerant discharged from the compressor 2, and a circuit that decompresses the refrigerant flowing out of the radiator 3. The expansion valve 4 and the evaporator 5 for evaporating the refrigerant decompressed by the expansion valve 4 are annularly connected.

[0037] The rotational driving force output from the engine 6 via...

no. 2 approach

[0100] Next, refer to Figure 11 , Figure 12 A second embodiment will be described. In the power transmission device 10 of the present embodiment, the groove width Gw of the groove portion 147C formed in the armature-side friction surface 140 is different from that of the groove portion 147 of the first embodiment.

[0101] Such as Figure 11 , Figure 12 As shown, a plurality of grooves 147C are formed on the armature side friction surface 140 of the present embodiment. In this embodiment, the groove width Gw inside the groove portion 147C is increased in consideration of the fact that adhesion is likely to occur on the inner peripheral side of the armature-side friction surface 140 , and the dissimilar material 17 is arranged in the groove portion 147C. In addition, for the convenience of explanation, Figure 11 Hatching of a dot pattern is given to the different material 17 .

[0102] Specifically, the groove width Gw of the groove portion 147C of the present embodim...

no. 3 approach

[0107] Next, refer to Figure 13 , Figure 14 A third embodiment will be described. The power transmission device 10 of this embodiment is different from the first embodiment in that the groove portion 118 is also formed on the rotor-side friction surface 110 .

[0108] In the power transmission device 10 of the present embodiment, groove portions 118 and 147 are formed on both the rotor-side friction surface 110 and the armature-side friction surface 140 . In addition, since the armature side friction surface 140 is the same as that of the first embodiment, description thereof will be omitted.

[0109] Such as Figure 13 , Figure 14 As shown, in the rotor 11 of this embodiment, a plurality of grooves 118 extending in a slit shape from the inner peripheral side to the outer peripheral side around the axis CL of the shaft 20 are formed on the rotor-side friction surface 110 . The plurality of grooves 118 are arranged radially at equal intervals in the circumferential dire...

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PUM

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Abstract

This motive power transmission device (10) is provided with an annular armature (14) which is connected to a rotor (11) by the electromagnetic attraction of an electromagnet (12) when a current is being passed through the electromagnet, and which is separated from the rotor when the current is not being passed through the electromagnet. The armature has, formed thereon, an armature-side friction surface (140) which is in contact with a rotor-side friction surface (110) formed on the rotor, when the current is being passed through the electromagnet. Slit-like grooves (147, 147A, 147B, 147C) which extend towards the outer circumferential side from the inner circumferential side are formed in the armature-side friction surface. Furthermore, different materials (17, 18) from the material whichforms the armature-side friction surface are disposed in the grooves.

Description

[0001] Cross-references to related applications [0002] This application is based on Japanese Patent Application No. 2016-244648 filed on December 16, 2016, the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to a power transmission device that transmits a rotational drive force output from a drive source to a device to be driven. Background technique [0004] Conventionally, there is known a power transmission device that includes a rotor rotated by a rotational drive force output from a drive source, an armature arranged to face the rotor and made of the same magnetic material as the rotor, and an armature that is energized to The friction surface of the armature attracts the electromagnet to the friction surface of the rotor. [0005] Such a power transmission device has proposed a structure in which circular grooves are provided on both the friction surface of the rotor and the friction surface of the arma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D27/112
CPCF16D27/112F16D27/14B60H1/3222H02K1/22
Inventor 山田有刚岸渊昭中川纯一高崎俊伸友川耕造川上聪栉田阳平
Owner DENSO CORP