FIELD OF INVENTION
[0001] The present invention relates to a multi-way direction control valve.
More specifically, the present invention is related to a multi-way fluid direction
control valve used in the thermal management system of electric vehicle to avoid
5 leakage offluid.
BACKGROUND OF THE INVENTION
[001] The equipment's like motor, battery and alike used in vehicles gets heated
10 due to continuous working. If it is not cooled, it may cause an accident or sudden
breakdown. So it is necessary to cool them properly.
[002] The multi-way valve, a control valve with multi way valve ports, is a
components in electric vehicles and is used to realize the conversion function of
cooling.
15 [003] However, the existing multi-way valve body for automobiles has a complex
structure, a large body size (increasing production costs), lack of protection
measures, poor leak reliability of the control valve and valve body (easy to leak
liquid). This happens due to inaccurate position of control valve or control valve if
not stopped at exact position.
20 [004] Hence there is a requirement of multi-way direction control valve which
operates at accurate position and avoid leakage of fluid.
OBJECTS OF THE INVENTION
[0002] The main object of a present invention is to provide a multi-way valve
25 with stopper.
[0003] The object of the present invention is to provide the multi-way valve
that can avoids the fluid leakage.
[0004] Yet another object of the invention is to provide the multi-way valve
that maintain the exact position of control valve.
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[0005) Yet another object of the invention is to provide the multi-way valve
that sense exact position of control valve.
[0006) Yet another object of the invention is to provide the multi-way valve
that is high efficient.
5 [0007] Yet another object of the invention is to provide the multi-way valve
that is cost effective.
SUMMARY OF THE INVENTION
[0008] The present invention relates to a multi-way direction control valve.
10 More specifically, the present invention is related to a multi-way fluid direction
control valve used in the thermal management system of electric vehicle to avoid
leakage offluid.
[0009) The embodiment of present invention discloses multi-way direction
control valve with stopper (I 00), the valve ( 1 00) includes a multi-way valve
15 housing (14) including plurality of ports, a bottom cover (24) operatively coupled
to the valve housing (14), a top cover (20) operatively coupled to the bottom cover
(24), a motor (8) removably mounted between the top cover (20) and the bottom
cover (24), the motor (8) comprises a worm gear (34) fixedly mounted at one end
of motor shaft, a gear train (6) operatively coupled to the worm gear (34) of motor
20 shaft and the worm gear (34) removably mounted between the top cover (20) and
the bottom cover (24), a control valve (10) operatively coupled to output of gear
train (6) which controls the direction of fluid, the control valve ( 1 0) includes two
flow path which forms 90 degree angle to center of control valve (1 0), a seal
connector (12) removable mounted between the valve housing (14) and the cover
25 plate (28) which act as leak proof member, a magnet (16) fixedly mounted on top
surface of the control valve (I 0) for generating the magnetic field ( 1 0) and a
controller (18) fixedly mounted at bottom surface of the bottom cover (24) and
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operatively connected to a power source, the controller comprises plurality of
sensors (I 8a) for sensing the position of control valve (1 0).
[00010] ln one embodiment of present invention the valve housing ( 14) consists
of stopping means for the control valve (I 0).
[00011] In one more embodiment of present invention the plurality of sensors
(18a) senses the position of control valve (I 0) through position ofthe magnet (16)
and send feedback of position to controller ( 18).
[00012] In one embodiment of present invention the stopping means for the
control valve ( 1 0) are in the form of slot provided at bottom surface of inner side
10 ofvalve housing (36).
[00013] In one embodiment of present invention the step provided at the bottom
of control valve (38) rests in the inner side of valve housing (36).
[00014] In one embodiment of present invention the gear train (6) consist of
worm gear, worm wheel, spur gear and driver spur gear and alike.
15 [00015] In one embodiment of present invention the top cover (20) connected
to the bottom cover (24) through snap fit or alike.
[00016] In one embodiment of present invention the o-ring removably mounted
between the top cover (20) and the bottom cover (24) to act as seal.
[00017] In one embodiment of present invention the quad ring (26) removably
20 mounted on groove provided on the control valve surface.
[00018] In one embodiment of present invention the bottom cover (24)
operatively coupled to the valve housing (14) through fastening means like screw
and alike.
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[00019] In one embodiment of present invention the plurality of sensors (18a)
senses the position of control valve (1 0) through position of the magnet (8) through
magnetic field generated by magnet (8).
[00020] In one embodiment of present invention the housing ( 14) includes 3
5 port or 4 port.
BRIEF DESCRIPTION OF THE DRAWINGS
[00021] The accompanying drawings constitute a part of the description and are
used to provide further understanding of the present invention. Such accompanying
10 drawings illustrate the embodiments of the present invention which are used to
describe the principles of the present invention together with the description.
[00022] FIG. 1 illustrates perspective view of multi-way valve in accordance to
an embodiment ofthe present invention;
[00023] FIG. 2 illustrates cross sectional view of multi-way valve in accordance
15 to an embodiment ofthe present invention;
[00024] FIG. 3 illustrates exploded view of multi-way valve in accordance to an
embodiment of the present invention;
[00025] FIG. 4 illustrates bottom view of multi-way valve in accordance to an
embodiment of the present invention;
20 [00026] FIG. 5 illustrates top view of multi-way valve m accordance to an
embodiment of the present invention.
[00027] FIG. 6 illustrates valve housing in accordance to an embodiment ofthe
present invention;
[00028] FIG. 7a illustrates control valve in accordance to an embodiment of the
25 present invention;
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[00029] FIG. 7b illustrates top view offlow path of control valve in accordance
to an embodiment ofthe present invention; and
[00030] FIG. 8 illustrates a position of sensor on controller in accordance to an
embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[00031] As used in the description herein and throughout the claims that follow,
the meaning of "a," "an," and "the" includes plural reference unless the context
clearly dictates otherwise. Also, as used in the description herein, the meaning of
10 "in" includes "in" and "on" unless the context clearly dictates otherwise.
[00032] If the specification states a component or feature "may", "can"
'
"could", or "might" be included or have a characteristic, that particular component
or feature is not required to be included or have the characteristic.
[00033] Exemplary embodiments will now be described more fully hereinafter
15 with reference to the accompanying drawings, in which exemplary embodiments
are shown. This disclosure may however, be embodied in many different forms and
should not be construed as limited to the embodiments set forth herein.
20
[00034] The present invention relates to a multi-way direction control valve.
More specifically, the present invention is related to a multi-way fluid direction
control valve used in the thermal management system of electric vehicle to avoid
leakage offluid.
[00035] Referring Fig I, Fig 2 and Fig 3, shows the multi way direction control
valve with stopper consisting of gear train 6, motor 8, control valve 10, seal
connector 12, valve housing 14, magnet 16, controller 18, top cover 20, o ring 22,
25 bottom cover 24, quad ring 26, cover plate 28, insert screwing 30, insert mounting
32, worm gear 34. The valve housing 14 and bottom cover 24 connected through
fastening means like screw or alike. The top cover 20 placed in bottom cover 24 by
6
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means of fastening means like snap fit or alike. The motor 8 mounted between the
top cover 20 and bottom cover 24, the motor fits between the top cover 20 and
bottom cover 24 with steps provided on the top cover 20 and bottom cover 24. The
motor 8 includes the worm gear 34 mounted at one end of motor shaft. The gear
5 train 8 connected to the worm gear 34 of motor shaft and worm gear 34 mounted
between the top cover 20 and bottom cover 24. The control valve 1 0 connected to
output of gear train 6. The seal connector 12 placed between the valve housing 14
and cover plate 28. The magnet 16 placed on top surface of the control valve 10.
The controller 18 fixedly placed at bottom surface of the bottom cover 24 and
10 connected to a power source, the controller 18 includes plurality of sensors 18a for
sensing the position of control valve 10. The controller 18 may be printed circuit
board (PCB) or alike. The insert screwing (30) helps in fastening and insert
mounting (32) help in mounting the valve (1 00) vehicle, system or alike.
[00036] Referring Fig. 4, Fig. 5, Fig 6 and Fig 7 shows the housing consists of
15 stopping means for the control valve. The valve housing 14 has slot 36 provided at
bottom surface of inner side of valve housing 14. At least one slot 36 provided to
valve housing 14. The step 38 provided at the bottom of control valve 14 rests in
the inner side of valve housing 14 which act as stopping means for the control valve.
The steps 38 provided depends on number of slots 36.
20
25
[00037] Referring Fig 8, shows the plurality of sensor 18a fixed on the controller
18. The sensors may be hall sensors or alike which senses the position of control
valve 10 using magnetic field as magnet 16 is placed on the top surface of control
valve 10 and send feedback of position to controller.
[00038] The embodiment of present invention discloses multi-way valve with
stopper ( 1 00), the valve ( 1 00) includes a multi-way valve housing ( 14) including
plurality of ports, made up of metal or plastic, a bottom cover (24) operatively
coupled to the valve housing (14), a top cover (20) operatively coupled to the
bottom cover (24), a motor (8) removably mounted between the top cover (20) and
the bottom cover (24), the motor (8) comprises a worm gear (34) fixedly mounted
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at one end of motor shaft, a gear train (6) operatively coupled to the worm gear (34)
of motor shaft and the worm gear (34) removably mounted between the top cover
(20) and the bottom cover (24) made up of metal or plastic, a control valve (10)
operatively coupled to output of gear train (6) which controls the direction of fluid,
5 the control valve (I 0) includes two flow path which forms 90 degree angle to center
of control valve (I 0), made up of metal or plastic, a seal connector (12) removable
mounted between the valve housing (14) and the cover plate (28) which act as leak
proof member made up of gasket or rubber, a magnet ( 16) fixedly mounted on top
surface of the control valve (I 0) for generating the magnetic field (I 0) and a
10 controller (18) fixedly mounted at bottom surface of the bottom cover (24) and
operatively connected to a power source, the controller comprises plurality of
sensors ( 18a) for sensing the position of control valve (1 0).
15
[00039] In one embodiment of present invention the valve housing (14) consists
of stopping means for the control valve (1 0).
[00040] In one more embodiment of present invention the plurality of sensors
(18a) senses the position of control valve (10) through position ofthe magnet (16)
and send feedback of position to controller ( 18).
[00041] In one embodiment of present invention the stopping means for the
control valve (I 0) are in the form of slot provided at bottom surface of inner side
20 ofvalve housing (36).
[00042] In one embodiment of present invention the step provided at the bottom
of control valve (3 8) rests in the inner side of valve housing (36).
[00043] In one embodiment of present invention the gear train (6) consist of
worm gear, worm wheel, spur gear and driver spur gear and alike.
25 [00044] In one embodiment of present invention the top cover (20) connected
to the bottom cover (24) through snap fit or alike.
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[00045] In one embodiment of present invention the o-ring removably mounted
between the top cover (20) and the bottom cover (24) to act as seal.
[00046] Tn one embodiment of present invention the quad ring (26) removably
mounted on groove provided on the control valve surface.
[00047] Tn one embodiment of present invention the bottom cover (24)
operatively coupled to the valve housing (14) through fastening means like screw
and alike.
[00048] In one embodiment of present invention the plurality of sensors (l8a)
senses the position of control valve (1 0) through position of the magnet (8) through
10 magnetic field generated by magnet (8).
[00049] Tn one embodiment of present invention the housing ( 14) includes 3
port or 4 port.
[00050] An operational characteristics of multi way valve is explained.
[00051] During start of motor 8, the motor 8 rotates and it rotate to the worm
15 gear 34 and other gears of gear train 6 and the control valve 1 0 too. The position of
control valve 10 is determine by the hall sensor 18a which is mounted on controller
18. The hall sensor 18a receives the position of control valve 10 from the magnet 8
which is located on top of the control valve 1 0. At least two hall sensors 18a are
fixed on controller bottom for sensing position of control valve 1 0 by means of
20 magnet 8. Sensors 18a are located on controller 18 in such manner that they get
only activated when control valve 10 rotate 90 degree, direction may be clockwise
or anti clockwise. Therefore to avoid the rotation of control valve 1 0 more than 90
degree a stopper 38 is provided at the bottom of valve housing. The stopper prevents
the control valve 1 0 rotation beyond the 90 degree. The seal connector 12 is used
25 for resisting fluid leakage. The main function of the stopper 38 is to avoid the over
movement of control valve which is not needed so fluid can flow through the outlet
port only. It also minimize the leakage chances.
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[00052] ADVANTAGES
I. The main advantage ofthe multiway control valve with stopper is to avoid
the over movement of the control valve which is not needed, so fluid can
flow through the outlet port only.
5 2. Jt also minimize the leakage chances.

CLAIMS
We Claim,
1. A multi-way direction control valve with stopper (1 00), the valve (1 00)
compnsmg:
a multi-way valve housing ( 14) having plurality of ports;
a bottom cover (24) operatively coupled to the valve housing ( 14);
a top cover (20) operatively coupled to the bottom cover (24);
a motor (8) removably mounted between the top cover (20) and bottom
cover (24), the motor (8) comprises a worm gear (34) fixedly mounted at
one end of motor shaft;
a gear train (6) operatively coupled to the worm gear (34) of motor shaft
and the worm gear (34) removably mounted between the top cover (20) and
the bottom cover (24);
a control valve (I 0) operatively coupled to output of gear train (6) which
controls the direction of fluid, the control valve (I 0) includes two flow path
which forms 90 degree angle to center of control valve (1 0);
a seal connector (12) removable mounted between the valve housing (14)
and the cover plate (28) which act as leak proof member;
a magnet ( 16) fixedly mounted on top surface of the control valve for
generating the magnetic field (1 0); and
a controller (18) fixedly mounted at bottom surface of the bottom cover (24)
and operatively connected to a power source, the controller comprises
plurality of sensors (18a) for sensing the position of control valve (1 0),
wherein the valve housing (14) comprises stopping means for the control
valve (l 0);
wherein the plurality of sensors ( 18a) senses the position of control valve
(1 0) through position of the magnet (16) and send feedback of position to
controller (18).
2. The valve (I 00) claimed in claim I, wherein stopping means for the control
valve (10) are in the form of slot provided at bottom surface of inner side of
valve housing (36).
3. The valve (I 00) claimed in claim I, wherein a step provided at the bottom
of control valve (38) rests in the inner side of valve housing (36).
4. The valve (I 00) claimed in claim I, wherein the gear train (6) consist of
worm gear, worm wheel, spur gear and driver spur gear and alike.
5. The valve (100) claimed in claim I, wherein the top cover (20) connected
to the bottom cover (24) through snap fit or alike.
10 6. The valve (I 00) claimed in claim 1, wherein the o-ring removabaly mounted
15
between the top cover (20) and the bottom cover (24) to act as seal.
7. The valve (I 00) claimed in claim I, wherein the quad ring (26) removabaly
mounted on groove provided on the control valve surface.
8. The valve (1 00) claimed in claim 1, wherein the bottom cover (24)
operatively coupled to the valve housing (14) through fastening means like
screw and alike.
9. The valve (I 00) claimed in claim I, wherein plurality of sensors ( 18a)
senses the position of control valve ( 1 0) through position of the magnet (8)
through magnetic field generated by magnet (8).
20 10. The valve (1 00) claimed in claim I, wherein the housing ( 14) having three ports or four ports.