CN200941577Y

CN200941577Y - Radiatable closed motor

Info

Publication number: CN200941577Y
Application number: CN 200620123139
Authority: CN
Inventors: 魏益堂; 阮家文
Original assignee: Joy Ride Technology Co Ltd
Current assignee: Joy Ride Technology Co Ltd
Priority date: 2006-08-09
Filing date: 2006-08-09
Publication date: 2007-08-29
Anticipated expiration: 2016-08-09

Abstract

The utility model discloses a heat dissipation closed motor, comprising an enclosure with accommodation space, a stator unit arranged on the accommodation space, a rotor unit arranged rotary on the accommodation space, a cooling piping with an input part, an exhaust part and a middle part which connects between the input part and the exhaust part. The rotor unit has an output part which runs through the output part of the enclosure along axial direction. The input part runs through the enclosure, which is used for input of flowing liquid. The middle section is arranged on the accommodation space, which axially winds around the rotor unit. The exhaust part runs through the enclosure, which exhausts the cooling liquid through the middle section.

Description

The closed motor that can dispel the heat

Technical field

The utility model relates to a kind of closed motor, is meant a kind of closed motor that dispels the heat especially.

Background technology

The existing closed motor that is used for electric bicycle (schemes not show, be also referred to as hub motor) generally have a housing, and be installed in stator pack in this housing, reach a rotor set that is installed in rotationally in this housing, the output of this rotor set can drive a wheel hub (figure does not show) through a transmission device (scheming not show, for example epicyclic gearing) and drive a trailing wheel (figure does not show) rotation.

Because this enclosure interior is provided with electronic circuit, considers based on dustproof, this housing generally is to be air-tight state, yet, behind this rotor set running warm, airtight housing but can produce the problem that heat radiation is difficult for, and has a strong impact on the running efficiency of this closed motor.

The utility model content

The purpose of this utility model is to provide a kind of can discharge intensification heat energy the outer closed motor that dispels the heat of housing.

The closed motor that the utility model can dispel the heat comprises a housing, a stator unit, a rotor unit, and a cooling water pipe.This housing has an accommodation space.This stator unit is to be fixedly arranged in this accommodation space.This rotor unit is to be installed in rotationally in this accommodation space, and can axially rotate with respect to this stator unit around one, and this rotor unit has one and axially passes the efferent of this housing along this.This cooling water pipe has an input end, and discharges the end, an and center section part that is connected between this input end and this discharge end, this input end is to pass this housing, and can be for cooling fluid input, this center section part is to be positioned at this accommodation space, and around this axial rings around this rotor unit, this discharge end is to pass this housing, and can discharge for this cooling fluid of this center section part of flowing through.

Whereby, the utility model not only can be discharged intensification heat energy outside the housing effectively, more can keep good running efficiency.

Description of drawings

Fig. 1 is closed motor one preferred embodiment of dispelling the heat of the present utility model and the assembled sectional view of a hub gear;

Fig. 2 is the three-dimensional appearance schematic diagram of a cooling water pipe of preferred embodiment.

Embodiment

Below by most preferred embodiment and accompanying drawing the closed motor that dispels the heat of the present utility model is elaborated:

About aforementioned and other technology contents, characteristics and effect of the present utility model, in the following detailed description that cooperates with reference to a graphic preferred embodiment, can clearly understand.

Consult Fig. 1,2, the preferred embodiment of the closed motor 100 that can dispel the heat for the utility model, this closed motor 100 comprises: a housing 10, a stator unit 20, a rotor unit 30, a clutch shaft bearing 40,2 second bearings 50, and a cooling water pipe 60.

This housing 10 has one first end wall 11, second end wall 12 in contrast to this first end wall 11, a surrounding wall 13, that is connected between this first and second end wall 11,12 around an axial X cooperates the accommodation space 14 that defines by this first and second end wall 11,12 with this surrounding wall 13, an and axostylus axostyle 15 that extends outwardly out from this first end wall 11 along these axial X, this first end wall 11 has two perforation 111, and this second end wall 12 has a perforation 121.

This stator unit 20 is to be fixedly arranged in this accommodation space 14, this stator unit 20 has one and is fixedly arranged on sleeve 21, on this first end wall 11 along this axial X and is sheathed on coil coating member 22 on this sleeve 21 and most coils 23 that are wound on this coil coating member 22 that enclose.

This rotor unit 30 is to be installed in rotationally in this accommodation space 14, and can rotate with respect to this stator unit 20 around this axial X, this rotor unit 30 have one rotationally with this sleeve 21, the rotating shaft 31 that this second end wall 12 connects, one end wall 32 that radially extends outwardly out from this rotating shaft 31, one extends from outer peripheral edges of this end wall 32 along this axial X and around the ring wall 33 of this stator unit 20, and the magnetic element 34 on most inner peripheral surfaces that are installed in this ring wall 33, this rotating shaft 31 has one and passes the efferent 311 of this housing 10 through this perforation 121 along this axial X.

This clutch shaft bearing 40 is to be installed between this second end wall 12 and this rotating shaft 31.

Described second bearing 50 is that the compartment of terrain is installed between this sleeve 21 and this rotating shaft 31.

This cooling water pipe 60 has an input end 61, and discharges end 62, an and center section part 63 that is connected between this input end 61 and this discharge end 62, this input end 61 is 111 to pass this housing 10 through a perforation wherein, and can be for a cooling fluid 70 inputs, this center section part 63 is to be positioned at this accommodation space 14, and around this axial X and in the shape of a spiral shape ground around this rotor unit 30 and this stator unit 20, this discharge end 62 is to pass this housing 10 through another perforation 111, and can discharge for this cooling fluid 70 of this center section part 63 of flowing through.In the present embodiment, this cooling fluid 70 is to be cold air, and certainly, this cooling fluid 70 also can be cooling fluid.

As shown in Figure 1, in the present embodiment, this closed motor 100 is to use with a hub gear 200 collocation, this hub gear 200 has an axostylus axostyle 210, one is installed in the wheel hub 220 on this axostylus axostyle 210 and this first end wall 11 rotationally, one is installed in first gear 230 on the efferent 311 of this rotating shaft 31, most second gears 240 that are installed in rotationally on this second end wall 12, one is installed in the rim gear wheel 250 on this wheel hub 220, an and one-way clutch 260 that is installed between this rim gear wheel 250 and this wheel hub 220, therefore, when this rotor unit 30 rotates with respect to this stator unit 20, this rotating shaft 31 can be through this first gear 230, described second gear 240, this rim gear wheel 250 drives this wheel hub 220 with this one-way clutch 260 and rotates, the more important thing is, in this process, this cooling fluid 70 can flow in this housing 10 through the input end 61 of this cooling water pipe 60, and flow through around this rotor unit 30 this interlude 63 with this stator unit 20, and absorb the intensification heat energy that this rotor unit 30 and this stator unit 20 are produced, discharging end 62 from this more at last discharges outside this housing 10, and then the intensification heat energy of this rotor unit 30 and this stator unit 20 is disposed to the external world, so, can reduce the temperature in this housing 10 effectively, and keep the running efficiency of this rotor unit 30 and this stator unit 20.

Via above explanation, can again advantage of the present utility model be summarized as follows:

The utility model can make this cooling fluid 70 flow in around the cooling water pipe 60 of this rotor unit 30 and this stator unit 20, and the intensification heat energy in this housing 10 is disposed to the external world, and then can reduce temperature in this housing 10 effectively, therefore, compared to existing hub motor, the utility model not only can prevent dust equally, and, more can keep good running efficiency in long-time running back

Conclude above-mentionedly, the closed motor that dispels the heat of the present utility model not only can be effectively discharged intensification heat energy outside the housing, more can keep good running efficiency, so can reach the purpose of invention really.

Claims

1. the closed motor that can dispel the heat comprises a housing, a stator unit, a rotor unit, and a cooling water pipe, it is characterized in that:

This housing has an accommodation space;

This stator unit is to be fixedly arranged in this accommodation space;

This rotor unit is to be installed in rotationally in this accommodation space, and axially rotates with respect to this stator unit around one, and this rotor unit has one and axially passes the efferent of this housing along this; And

This cooling water pipe, have an input end, and discharge the end, an and center section part that is connected between this input end and this discharge end, this input end is to pass this housing, and for cooling fluid input, this center section part is to be positioned at this accommodation space, and around this axial rings around this rotor unit, this discharge end is to pass this housing, and discharges for this cooling fluid of this center section part of flowing through.

2. the closed motor that dispels the heat as claimed in claim 1 is characterized in that:

This housing has one first end wall, second end wall in contrast to this first end wall, one and axially is connected in surrounding wall between this first and second end wall around this, and one from this first end wall along this axostylus axostyle that axially extends outwardly out, this first and second end wall cooperates with this surrounding wall and defines this accommodation space, this first end wall have two respectively for the input end of this cooling water pipe with discharge the perforation that the end passes, this second end wall has a perforation that passes for the efferent of this rotor unit.

3. the closed motor that dispels the heat as claimed in claim 2 is characterized in that:

This stator unit has one and axially is fixedly arranged on sleeve on this first end wall along this, one is sheathed on the coil coating member on this sleeve, and most circles are arranged at the coil on this coil coating member, this rotor unit have one rotationally with this sleeve, the rotating shaft that this second end wall connects, one end wall that radially extends outwardly out from this rotating shaft, one extends axially out and around the ring wall of this stator unit along this from outer peripheral edges of this end wall, and the magnetic element on most inner peripheral surfaces that are installed in this ring wall, this efferent is to be formed at this rotating shaft on an end of this stator unit.

4. the closed motor that dispels the heat as claimed in claim 3 is characterized in that:

The center section part of this cooling water pipe be around this axially and in the shape of a spiral shape ground around this rotor unit and this stator unit.

5. the closed motor that dispels the heat as claimed in claim 3 is characterized in that:

This closed motor comprises that also one is installed in the clutch shaft bearing between this second end wall and this rotating shaft, and two compartment of terrains are installed in second bearing between this sleeve and this rotating shaft.