The present invention relates to a dispenser, and more particularly to a rolled sheet
material dispenser.

BACKGROUND OF THE INVENTION

Generators and motors (or electrical machines) are commonly used energy conversion
10 devices. The principle of a generator is similar to that of a motor. The difference between
the two is that the direction of energy conversion is different. The generator may use
various powers (such as hydraulic power, wind power, etc.) to make the rotor rotate
relative to the stator. Through the change of the magnetic field, the coil generates an
induced current due to the electromagnetic induction effect; or, after generating electricity
15 (for example, using solar energy) to generate DC power, the DC motor is started to drive
the generator to generate electricity. An external power source supplies power to the motor
to energize the rotor or the coil of the stator, such that the rotor can be rotated relative to
the stator due to the magnetic interaction.
Taiwan Patent Early Publication No. 201715823 discloses a “Large Rated Power
20 Dynamo”, which comprises an upper end cover, a lower end cover, and a plurality of rotor
assemblies stacked between the upper end cover and the lower end cover. A stator
assembly is provided between every adjacent two of the rotor assemblies. Between the
3
upper end cover and the rotator assembly adjacent to the upper end cover is also provided
with a stator assembly. Between the lower end cover and the rotator assembly adjacent to
the lower end cover is also provided with a stator assembly.
Taiwan Patent Publication No. I274460 discloses a "tandem motor accelerator", which
mainly includes two motors connected in series and disposed in a casing assembly, a5 n
outer annular gear, a planetary arm, and a planetary gear set disposed in the planetary arm.
A sun gear is disposed in the planetary arm. An output shaft is disposed in the sun gear.
The sun gear meshes with the planetary gear. The two motors respectively drive the
planetary arm and the annular gear of the planetary gear set, and then output their
10 rotational power through the output shaft of the sun gear.
However, how to make the generator and motor adjust the quantity and the configuration
according to different output requirements to enhance the flexibility of product use and
improve the working efficiency of the product is still a subject of research and
development.
15 SUMMARY OF THE INVENTION
According to one aspect of the present invention, a modular generation device is provided
to improve the flexibility and working efficiency of product use. The modular generation
device comprises a plurality of modules arranged along an axial direction. The modules
each comprise a stator and a rotor. The stator comprises at least one housing member and
20 a plurality of coils. The housing member includes a pair of side walls and a connecting
wall. The connecting wall is connected to the pair of side walls. A rotation space is defined
between the pair of side walls and the connecting wall. The housing member has a first
4
circulation opening communicating with the rotation space and extending along the axial
direction. The pair of side walls is provided with the coils, respectively. The rotor includes
at least one disc and a plurality of magnetic members. The disc includes a shaft joint
portion and a magnetic member mounting portion. The magnetic member mounting
portion surrounds the shaft joint portion and corresponds to the pair of side walls. The dis5 c
further has at least one second circulation opening defined between the magnetic member
mounting portion and the shaft joint portion and extending along the axial direction. The
magnetic members are spaced apart from each other and disposed in the magnetic
member mounting portion. When the rotor is rotated, the coils of the stator generate
10 electric power, and air flows among the first circulation opening, the second circulation
opening and the rotation space for heat dissipation.
According to another aspect of the present invention, a modular generation device is
provided. The modular generation device comprises a plurality of modules arranged
along an axial direction. The modules each comprise a stator and a rotor. The stator
15 comprises at least one housing member and a plurality of coils. The housing member
includes a pair of side walls and a connecting wall. The connecting wall is connected to
the pair of side walls. A rotation space is defined between the pair of side walls and the
connecting wall. The pair of side walls are provided with the coils, respectively. The rotor
includes at least one disc and a plurality of magnetic members. The disc includes a shaft
20 joint portion and a magnetic member mounting portion. The magnetic member mounting
portion surrounds the shaft joint portion and corresponds to the pair of side walls. When
the rotor is rotated, the coils of the stator generate electric power.
5
According to a further aspect of the present invention, a modular motor comprises a
plurality of modules arranged along an axial direction. The modules each comprise a
stator and a rotor. The stator comprises at least one housing member and a plurality of
coils. The housing member includes a pair of side walls and a connecting wall. The
connecting wall is connected to the pair of side walls. A rotation space is defined betwee5 n
the pair of side walls and the connecting wall. The housing member has a first circulation
opening communicating with the rotation space and extending along the axial direction.
The pair of side walls are provided with the coils, respectively. The rotor includes at least
one disc and a plurality of magnetic members. The disc includes a shaft joint portion and a
10 magnetic member mounting portion. The magnetic member mounting portion surrounds
the shaft joint portion and corresponds to the pair of side walls. The disc further has at
least one second circulation opening defined between the magnetic member mounting
portion and the shaft joint portion and extending along the axial direction. The magnetic
members are spaced apart from each other and disposed in the magnetic member
15 mounting portion. When the coils of the stator are energized, the coils drive the magnetic
members of the rotor to rotate due to a magnetic effect of current interacting with the
magnetic members of the rotor, and air flows among the first circulation opening, the
second circulation opening and the rotation space for heat dissipation.
Preferably, the magnetic member mounting portion is provided with a plurality of spaced
20 mounting grooves for mounting the magnetic members respectively.
Preferably, the mounting grooves and the magnetic members each have an arc shape.
Preferably, the shaft joint portion has a shaft hole for connecting a rotating shaft member.
6
The rotating shaft member includes at least one shaft. The shaft is inserted into the shaft
hole of the shaft joint portion.
Alternatively, the rotating shaft member includes a plurality of shafts. Every adjacent two
of the shafts are connected in series by a coupling.
Preferably, the shaft joint portion has a plurality of engaging portions adjacent to the shaf5 t
hole for engaging the shaft.
Preferably, the shaft joint portion has at least one screw hole communicating with the shaft
hole. The screw hole is locked by a screw to tighten the shaft.
Preferably, the rotor includes a plurality of discs that are spaced apart from each other.
10 Preferably, the modules each further includes a fixing seat for the stator to be fixedly
mounted. The modules are arranged side by side and abut against each other through the
fixing seat.
Preferably, the second circulation opening is plural and spaced apparat from each other
and arranged around the shaft joint portion.
15 According to the above technical features, the present invention can achieve following
effects:
1. The stator and the rotor have the first circulation opening and the second circulation
opening that extend axially and communicate with each other. On the one hand, the
weight of the rotor can be reduced so that the rotor can be driven easily, and on the other
20 hand, air can flow among the first circulation opening, and the second circulation opening
and the rotation space for heat dissipation to improve the working efficiency.
2. Each module is modularized with independent functions, which is convenient to adjust
7
the quantity and the configuration according to different power consumption or different
output requirements to enhance the flexibility of product use.
3. The housing member includes a pair of side walls. Each of the side walls is provided
with the coils, which is beneficial for increasing the amount of power generated.
4. The modules can be driven by the same shaft or a plurality of shafts that are connecte5 d
in series by the coupling.
5. The shaft joint portion is provided with the screw and the engaging portions, so that the
shaft can form an exact interlocking relationship with the shaft joint portion.
BRIEF DESCRIPTION OF THE DRAWINGS
10 FIG. 1 is a perspective view in accordance with a first embodiment of the present
invention;
FIG. 2 is an exploded view in accordance with the first embodiment of the present
invention;
FIG. 3 is a sectional view in accordance with the first embodiment of the present
15 invention;
FIG. 4 is a planar view in accordance with a second embodiment of the present invention;
and
FIG. 5 is a perspective view of the rotor in accordance with a third embodiment of the
present invention.
20 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In combination with the above technical features, the main functions of the modular
energy conversion device, the modular power generation device and the modular motor of
8
the present invention will now be clearly shown in the following embodiments, by way of
example only, with reference to the accompanying drawings.
Referring to FIG. 1, a modular energy conversion device (100) in accordance with a first
embodiment of the present invention may function as a modular power generation device
or a modular motor for different needs. The energy conversion device (100) comprises 5 a
plurality of modules (10) arranged along an axial direction (L). Each module (10)
comprises a stator (1) and a rotor (2). The stator (1) comprises a housing member (11) and
a plurality of coils (12). In this embodiment, each module (10) further includes a fixing
seat (3) for the stator (1) to be fixedly mounted by means of inlaying, welding, locking, or
10 the like. The modules (10) are arranged side by side and abut against each other through
the fixing seat (3).
Referring to FIG. 2, in conjunction with FIG. 1, the housing member (11) may be
integrally formed or may include a plurality of housings (110) that are connected to each
other by means of inlaying, welding, locking, or the like. Each housing (110) includes a
15 pair of side walls (111) and a connecting wall (112). The pair of side walls (111) are
provided with the coils (12), respectively. The coils (12) may be, for example, printed
circuits or circuit wiring coils formed by electroforming to reduce the occupied area, or
the coils (12) may adopt enamelled coils. The coils (12) are collectively or respectively
connected to a charging circuit, a power supply circuit or a power source, etc., and can be
20 adjusted according to different requirements for charging, supplying power or inputting
power. The connecting wall (112) is connected to the pair of side walls (111). A rotation
space (113) is defined between the pair of side walls (111) and the connecting wall (112).
9
The housing member (11) has a first circulation opening (114) communicating with the
rotation space (113) and extending along the axial direction (L).
Referring to FIG. 2, in conjunction with FIG. 1, the rotor (2) comprises a disc (21) and a
plurality of magnetic members (22). The disc (21) comprises a shaft joint portion (211)
and a magnetic member mounting portion (212). The shaft joint portion (211) has a shaf5 t
hole (2111) for receiving a shaft (41) of a rotating shaft member (4). Preferably, the shaft
joint portion (211) has a plurality of engaging portions (2112) adjacent to the shaft hole
(2111) for engaging the shaft (41) (for example, a key and a key groove). Preferably, the
shaft joint portion (211) has a plurality of screw holes (2113) communicating with the
10 shaft hole (2111). Each screw hole (2113) is locked by a screw (2114) to further tighten
the shaft (41).
Referring to FIG. 2, in conjunction with FIG. 1, the magnetic member mounting portion
(212) surrounds the shaft joint portion (211) and corresponds to the pair of side walls (111).
The disc (21) further has a plurality of second circulation openings (23) defined between
15 the magnetic member mounting portion (212) and the shaft joint portion (211) and
extending along the axial direction (L). In this embodiment, the second circulation
openings (23) each have an arc shape and are spaced apart from each other and arranged
around the shaft joint portion (211). The magnetic members (22) are spaced apart from
each other and disposed in the magnetic member mounting portion (212). In detail, the
20 magnetic member mounting portion (212) is provided with a plurality of spaced mounting
grooves (2121) for mounting the magnetic members (22) by means of inlaying, bonding,
or the like. In this embodiment, the mounting grooves (2121) and the magnetic members
10
(22) each have an arc shape. The mounting grooves (2121) and the magnetic members
(22) have matching features (2210) (220) for mating with each other. The mating features
(2210) (220) may be, for example, ribs and grooves extending along the axial direction
(L).
Referring to FIG. 3, when the rotating shaft member (4) is driven by an external powe5 r
(such as hydraulic power, wind power, etc.) to rotate the rotor (2), the magnetic members
(22) of the rotor (2) will enable the coils (12) of the stator (1) to generate electric power
due to an electromagnetic induction effect, thereby functioning as a modular power
generation device. Because the stator (1) and the rotor (2) have the first circulation
10 opening (114) and the second circulation openings (23) extending along the axial direction
(L) and communicating with each other, allowing air to flow among the first circulation
opening (114), the second circulation openings (23) and the rotation space (113) for heat
dissipation, the heat generated by the coils (12) can be dissipated by the flow of air to
improve power generation efficiency. When the coils (12) of the stator (1) are energized,
15 the coils (12) will drive the magnetic members (22) of the rotor (2) to rotate due to the
magnetic effect of the current interacting with the magnetic members (22) of the rotor (2),
thereby functioning as a modular motor. Similarly, because the stator (1) and the rotor (2)
have the first circulation opening (114) and the second circulation openings (23) extending
along the axial direction (L) and communicating with each other, allowing air to flow
20 among the first circulation opening (114), the second circulation openings (23) and the
rotation space (113) for heat dissipation, the heat generated by the coils (12) due to
energization can also be dissipated by the flow of air to improve the working efficiency.
11
Referring to FIG. 4, a second embodiment of the present invention is substantially similar
to the first embodiment, including a plurality of modules (10) arranged along an axial
direction (L). The main difference is that the rotating shaft member (4A) includes a
plurality of shafts (41A). Every adjacent two of the shafts (41A) are connected in series by
a coupling (42A), thereby achieving the purpose of jointly interlinking the plurality o5 f
modules (10).
Referring to FIG. 5, a third embodiment of the present invention is substantially similar to
the first embodiment. The main difference from the first embodiment is that the rotor (2B)
may include a plurality of discs (21B) that are spaced apart from each other and arranged
10 along the axial direction (L). The discs (21B) share the same shaft joint portion (211B);
correspondingly, the stator may include a plurality of housings that are axially spaced.
Although particular embodiments of the present invention have been described in detail
for purposes of illustration, various modifications and enhancements may be made
without departing from the spirit and scope of the present invention. Accordingly, the
15 present invention is not to be limited except as by the appended claims.

I CLAIM:

1. A modular generation device, comprising:
a plurality of modules, arranged along an axial direction, the modules each
comprising a stator and a rotor, the stator comprising at least one housing member and a
plurality of coils, the housing member including a pair of side walls and a connecting wall5 ,
the connecting wall being connected to the pair of side walls, a rotation space being
defined between the pair of side walls and the connecting wall, the housing member
having a first circulation opening communicating with the rotation space and extending
along the axial direction, the pair of side walls being provided with the coils respectively;
10 the rotor including at least one disc and a plurality of magnetic members, the disc
including a shaft joint portion and a magnetic member mounting portion, the magnetic
member mounting portion surrounding the shaft joint portion and corresponding to the
pair of side walls, the disc further having at least one second circulation opening defined
between the magnetic member mounting portion and the shaft joint portion and extending
15 along the axial direction, the magnetic members being spaced apart from each other and
disposed in the magnetic member mounting portion; wherein when the rotor is rotated, the
coils of the stator generate electric power, and air flows among the first circulation
opening, the second circulation opening and the rotation space for heat dissipation.
2. The modular generation device as claimed in claim 1, wherein the magnetic member
20 mounting portion is provided with a plurality of spaced mounting grooves for mounting
the magnetic members respectively.
3. The modular generation device as claimed in claim 2, wherein the mounting grooves
13
and the magnetic members each have an arc shape.
4. The modular generation device as claimed in claim 1, wherein the shaft joint portion
has a shaft hole, the modular generation device further comprises a rotating shaft member,
the rotating shaft member includes at least one shaft, and the shaft is inserted into the shaft
hole of the shaft joint portion5 .
5. The modular generation device as claimed in claim 4, wherein the rotating shaft
member includes a plurality of shafts, and every adjacent two of the shafts are connected
in series by a coupling.
6. The modular generation device as claimed in claim 4, wherein the shaft joint portion
10 has a plurality of engaging portions adjacent to the shaft hole for engaging the shaft.
7. The modular generation device as claimed in claim 4, wherein the shaft joint portion
has at least one screw hole communicating with the shaft hole, and the screw hole is
locked by a screw to tighten the shaft.
8. The modular generation device as claimed in claim 1, wherein the rotor includes a
15 plurality of discs that are spaced apart from each other.
9. The modular generation device as claimed in claim 1, wherein the modules each further
includes a fixing seat for the stator to be fixedly mounted, and the modules are arranged
side by side and abut against each other through the fixing seat.
10. The modular generation device as claimed in claim 1, wherein the second circulation
20 opening is plural and spaced apparat from each other and arranged around the shaft joint
portion.
14
11. A modular generation device, comprising:
a plurality of modules, arranged along an axial direction, the modules each comprising a
stator and a rotor, the stator comprising at least one housing member and a plurality of
coils, the housing member including a pair of side walls and a connecting wall, the
connecting wall being connected to the pair of side walls, a rotation space being define5 d
between the pair of side walls and the connecting wall, the pair of side walls being
provided with the coils respectively; the rotor including at least one disc and a plurality of
magnetic members, the disc including a shaft joint portion and a magnetic member
mounting portion, the magnetic member mounting portion surrounding the shaft joint
10 portion and corresponding to the pair of side walls; wherein when the rotor is rotated, the
coils of the stator generate electric power.
12. A modular motor, comprising:
a plurality of modules, arranged along an axial direction, the modules each comprising a
stator and a rotor, the stator comprising at least one housing member and a plurality of
15 coils, the housing member including a pair of side walls and a connecting wall, the
connecting wall being connected to the pair of side walls, a rotation space being defined
between the pair of side walls and the connecting wall, the housing member having a first
circulation opening communicating with the rotation space and extending along the axial
direction, the pair of side walls being provided with the coils respectively; the rotor
20 including at least one disc and a plurality of magnetic members, the disc including a shaft
joint portion and a magnetic member mounting portion, the magnetic member mounting
portion surrounding the shaft joint portion and corresponding to the pair of side walls, the
15
disc further having at least one second circulation opening defined between the magnetic
member mounting portion and the shaft joint portion and extending along the axial
direction, the magnetic members being spaced apart from each other and disposed in the
magnetic member mounting portion; wherein when the coils of the stator are energized,
the coils drive the magnetic members of the rotor to rotate due to a magnetic effect o5 f
current interacting with the magnetic members of the rotor, and air flows among the first
circulation opening, the second circulation opening and the rotation space for heat
dissipation.
13. The modular motor as claimed in claim 12, wherein the magnetic member mounting
10 portion is provided with a plurality of spaced mounting grooves for mounting the
magnetic members respectively.
14. The modular motor as claimed in claim 13, wherein the mounting grooves and the
magnetic members each have an arc shape.
15. The modular motor as claimed in claim 12, wherein the shaft joint portion has a shaft
15 hole, the modular motor further comprises a rotating shaft member, the rotating shaft
member includes at least one shaft, and the shaft is inserted into the shaft hole of the shaft
joint portion.
16. The modular motor as claimed in claim 15, wherein the rotating shaft member
includes a plurality of shafts, and every adjacent two of the shafts are connected in series
20 by a coupling.
17. The modular motor as claimed in claim 15, wherein the shaft joint portion has a
plurality of engaging portions adjacent to the shaft hole for engaging the shaft.
16
18. The modular motor as claimed in claim 15, wherein the shaft joint portion has at least
one screw hole communicating with the shaft hole, and the screw hole is locked by a
screw to tighten the shaft.
19. The modular motor as claimed in claim 12, wherein the rotor includes a plurality of
discs that are spaced apart from each other5 .
20. The modular motor as claimed in claim 12, wherein the modules each further includes
a fixing seat for the stator to be fixedly mounted, and the modules are arranged side by
side and abut against each other through the fixing seat.
21. The modular motor as claimed in claim 12, wherein the second circulation opening is
10 plural and spaced apparat from each other and arranged around the shaft joint portion.