KR20170131754A - Dual type water pump - Google Patents

Abstract

The present invention relates to a dual-type water pump comprising: a motor unit which has a rotation shaft rotated by driving force supplied from a motor; a first pump which is positioned at one end of the motor unit, is selectively coupled to the motor unit, receives power of the motor unit, and pumps a fluid while rotating; a second pump which is positioned at the other end of the motor unit, is selectively coupled to the motor unit, receives power of the motor unit, and pumps a fluid while rotating; a first power connection unit which is positioned between the motor unit and the first pump, and selectively connects the motor unit to the first pump; a second power connection unit which is positioned between the motor unit and the second pump, and selectively connects the motor unit to the second pump; and a controller which controls operations of the first power connection unit and the second power connection unit to selectively connect the motor unit to the first pump and the second pump. Accordingly, it is possible to reduce costs by reducing the number of components by rotating the first pump and the second pump provided at both ends of the rotation shaft by using one motor, it is possible to improve fuel efficiency by reducing the weight, and it is possible to simultaneously drive the first pump and the second pump provided at both ends of the rotation shaft, thereby preventing damage caused by heat.

Description

Dual type water pump

The present invention relates to a dual type water pump, and more particularly, to a dual type water pump in which two pumps can be driven independently and simultaneously by one motor and a controller.

Generally, the vehicle is provided with cooling water for cooling the heat generated during operation of the engine, and the cooling water is circulated through the water pump.

As shown in FIG. 1, a conventional HEV (Hybrid Electric Vehecle) system includes an electric water pump for heating aids having different capacities and an electric water pump for cooling electric equipments Respectively.

However, the conventional HEV (Hybrid Electric Vehecle) system has advantages that it is driven according to each driving condition by the independent pump. However, since it has two independent pumps instead of one pump, .

In order to solve this problem, an improved HEV (Hybrid Electric Vehecle) system in which each electric water pump is modularized as shown in FIG. 2 is disclosed. The improved HEV (Hybrid Electric Vehecle) system is a system that only rotates the rotor body clockwise or counterclockwise by using one way clutch bearing with different direction to each pump drive, Each of the pump driving portions is independently driven by the other one-way clutch bearing. However, the simultaneous driving condition is unsatisfactory, which may cause heat damage.

The technology of the background of the present invention is disclosed in Korean Patent No. 1506558 (registered on March 23, 2015).

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a motor- The present invention provides a dual type water pump which can be independently and simultaneously transmitted to a first impeller of a first pump and a second impeller of a second pump provided at one end and the other end of the pump.

According to an aspect of the present invention, there is provided a motor including: a motor having a rotating shaft rotated by a driving force supplied from a motor; A first pump positioned at one end of the motor unit and selectively coupled to the motor unit to receive power from the motor unit to pump the fluid while rotating; A second pump positioned at the other end of the motor unit and selectively coupled to the motor unit to receive power from the motor unit to pump the fluid while rotating; A first power connection part located between the motor part and the first pump and selectively connecting the motor part and the first pump; A second power connection part located between the motor part and the second pump, the second power connection part selectively coupling the motor part and the second pump; And a controller for controlling the operation of the first power coupling part and the second power coupling part so that the motor part and the first pump and the second pump are selectively coupled to each other.

In the dual type water pump according to the present invention, the motor unit may include a motor housing having a closed cylindrical shape and having a first through hole and a second through hole formed on one end face and the other end face, And a motor that is provided inside the motor housing and provides power for rotating the rotation shaft.

The first groove and the second groove, in which the first power connection portion and the second power connection portion are located, may be inserted into the motor housing from the outside to the inside, respectively, at one end face and the other end face of the motor housing, And a second through hole may be formed in the second groove.

The first pump includes a first impeller housing located at one end of the motor unit and a second impeller housing which is provided inside the first impeller housing and selectively coupled to the motor unit to pump the fluid flowing while being rotated by the power of the motor unit The first impeller may include a first impeller, and the first impeller may include a first magnetic body selectively coupled to the first power coupling.

The first power coupling portion includes a first clutch mounted on one end of the rotary shaft and rotated by rotation of the rotary shaft, a second clutch having one end connected to the first impeller and the other end selectively engaged with the first clutch, A first electromagnet disposed at one end of the motor unit and selectively coupled to the first magnetic body by a current controlled by the controller to selectively couple the first clutch and the second clutch; And a first elastic body provided between the first and second clutches to provide an elastic force for separating the first clutch and the second clutch.

A first concavo-convex portion having a first concave-convex portion and a first concavo-convex portion may be formed on one surface of the first clutch coupled to the second clutch, and a second concavo-convex portion may be formed on one surface of the second clutch, A second concavo-convex portion having two concavo-convex grooves may be formed, and the first concavo-convex may be combined with the second concavo-convex groove, and the second concavo-convex may be combined with the first concavo-convex groove.

The second pump includes a second impeller housing located at the other end of the motor unit and a second impeller housing disposed inside the second impeller housing and selectively coupled to the motor unit for pumping fluid flowing while being rotated by the power of the motor unit And the second impeller may include a second magnetic body selectively coupled to the second power coupling portion.

A third clutch that is mounted on the other end of the rotary shaft and rotates by rotation of the rotary shaft, a fourth clutch, one end of which is connected to the second impeller and the other end of which is selectively engaged with the third clutch, A second electromagnet which is located at the other end of the motor and is selectively coupled to the second magnetic body by a current controlled by the controller to selectively engage the third clutch and the fourth clutch; And a second elastic body provided between the fourth clutch and the fourth clutch to provide an elastic force for separating the third clutch and the fourth clutch.

A third concavo-convex portion having a plurality of third concavo-convexes and a third concavo-convex groove may be formed on one surface of the third clutch coupled to the fourth clutch, and a fourth concavo-convex portion may be formed on one surface of the fourth clutch, A fourth concavo-convex portion having four concavo-convex grooves may be formed, the third concavo-convex may be coupled to the fourth concavo-convex groove, and the fourth concavo-convex may be coupled to the third concavo-convex groove.

The first pump includes a first impeller housing located at one end of the motor unit and a second impeller housing which is provided inside the first impeller housing and selectively coupled to the motor unit to pump the fluid flowing while being rotated by the power of the motor unit The first impeller may include a first impeller and the first impeller may include a first magnet selectively coupled to the first power coupling portion. The second pump may include a second impeller housing located at one end of the motor portion, And a second impeller which is provided inside the second impeller housing and selectively coupled to the motor unit to pump the fluid that is introduced while being rotated by the power of the motor unit, And a second magnet selectively coupled to the connection portion.

The first power coupling portion includes a first clutch mounted on one end of the rotary shaft and rotated by rotation of the rotary shaft, a second clutch having one end connected to the first impeller and the other end selectively engaged with the first clutch, And a first electromagnet disposed at one end of the motor unit and selectively coupled to the first magnet by a current controlled by the controller to selectively couple the first clutch and the second clutch, A second clutch that is mounted on one end of the rotary shaft and rotates by rotation of the rotary shaft, a fourth clutch whose one end is connected to the second impeller and the other end is selectively engaged with the third clutch; And a third clutch that is disposed at one end of the motor and selectively coupled to the second magnet by a current controlled by the controller, And a second electromagnet that selectively engages.

In addition, the present invention provides a motor-solenoid body including a first solenoid and a second solenoid at both ends of a motor, wherein the first solenoid and the second solenoid are provided at both ends of the rotary shaft while the rotary shaft is rotated by a driving force supplied from the motor. A first cover-impeller portion disposed at one end of the motor-solenoid body portion and selectively coupled to the first gear to pump the fluid while receiving power of the motor to rotate; A second cover-impeller portion located at the other end of the motor-solenoid body portion and selectively coupled to the second gear to pump the fluid while receiving the power of the motor; And a controller for controlling the operation of the first solenoid and the second solenoid to selectively couple the motor-solenoid body portion and the first cover-impeller portion and the second cover-impeller portion to each other .

In the dual type water pump according to the present invention, a first spring for separating the first gear from the rotation shaft may be provided between the rotation shaft and the first gear, and between the rotation shaft and the second gear, And a second spring for separating the second gear from the rotation shaft.

The first cover-impeller portion includes a first cover disposed at one end of the motor-solenoid body portion, a first impeller body provided inside the first cover and selectively pumping the fluid to be rotated, And a third gear, one end of which is mounted on the first impeller body, and the other end, which is selectively engaged with the first gear by the action of the first solenoid.

The second cover-impeller portion includes a second cover positioned at the other end of the motor-solenoid body portion, a second impeller body provided inside the second cover and selectively pumping the fluid to be pumped while rotating, And a fourth gear, one end of which is mounted on the second impeller body, and the other end, which is selectively engaged with the second gear by the action of the second solenoid.

The dual type water pump according to the present invention reduces the number of parts by reducing the number of parts by rotating the first pump and the second pump provided at both ends of the rotary shaft by using one motor, And the first pump and the second pump provided at both ends of the rotary shaft can be driven at the same time, thereby preventing damage due to heat.

FIG. 1 is a view schematically showing a configuration of a conventional HEV (Hybrid Electric Vehecle) system.
FIG. 2 is a view schematically showing a configuration of an improved HEV (Hybrid Electric Vehecle) system.
FIG. 3 is a view schematically showing a configuration of a dual type water pump according to an embodiment of the present invention.
Fig. 4 is an enlarged view of the main part of Fig. 3. Fig.
5 is a view showing a modification of the dual type water pump shown in Fig.
6 is a view schematically showing a configuration of a dual type water pump according to another embodiment of the present invention.
Fig. 7 is an enlarged view of the main part of Fig. 6. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

FIG. 3 is a view schematically showing a configuration of a dual-type water pump according to an embodiment of the present invention. FIG. 4 is an enlarged view of the main part of FIG. 3, and FIG. 5 is a cross- FIG. 6 is a view schematically showing a configuration of a dual type water pump according to another embodiment of the present invention, and FIG. 7 is an enlarged view of a main part of FIG.

3 to 4, a dual type water pump 100 according to an embodiment of the present invention includes a motor unit 110, a first pump 120, a second pump 130, A first power transmission unit 140, a second power transmission unit 150, and a controller 160.

The motor unit 110 includes a motor housing 112, a rotating shaft 114 and a motor 116. The rotating shaft 114 is rotated by the power supplied from the motor 116, 112 serve to wrap the rotation shaft 114 and the motor 116 from the outside.

The motor housing 112 has a closed cylindrical shape and has a first through hole 112c through which both ends of a rotating shaft 114 provided inside the motor housing 112 are passed, Two through holes 112d are formed.

A first groove 112a and a second groove 112b in which a first power coupling part 140 and a second power coupling part 150 to be described later are disposed are provided on one end face and the other end face of the motor housing 112, The first groove 112a and the second groove 112b are formed so as to be inserted inward from one end surface and the other end surface of the motor housing 112, The first through holes 112c and the second through holes 112d are formed in the two grooves 112b.

A motor 116 is provided inside the motor housing 112. The motor 116 provides power for rotating the rotating shaft 114 and both ends of the rotating shaft 114 are connected to the first through hole 112c and the second through hole 112d to be exposed to the outside of the motor housing 112 and the rotation shaft 114 is rotated inside the motor housing 112 by the motor 116 . A bearing member (not shown) is provided on the circumferential surface of the rotating shaft 114 to smooth the rotation of the rotating shaft 114. The bearing member (not shown) And the first impeller 122 and the second impeller 132, which will be described later. However, the present invention is not limited thereto, and the bearing member (not shown) may include a first impeller housing 121, May be provided between the first impeller 122 and between the second impeller housing 131 and the second impeller 132.

A first pump 120 is provided at one end of the motor unit 110. The first pump 120 is selectively coupled to the motor unit 110 and receives power from the motor unit 110, And serves to pump the fluid as cooling water.

The first pump 120 includes a first impeller housing 121 and a first impeller 122 and a first magnetic body 123 is disposed on the first impeller 122. The first impeller housing 121 is located at one end of the motor unit 110 and is preferably located at one end of the motor housing 112 to seal one end of the motor housing 112, A first impeller (122) is provided inside the impeller housing (121). The first impeller 122 is selectively coupled to the motor unit 110 by a first power connection unit 140 to be described later and functions to pump the fluid while being rotated by the power of the motor unit 110. The first impeller housing 121 is provided with an inlet (not shown) for introducing cooling water as a fluid and an outlet (not shown) for discharging the fluid by the first impeller 122, (122) is generally used in a pump, and a detailed description thereof will be omitted.

The first impeller 122 is preferably provided with a first magnetic body 123 for selectively coupling the first impeller 122 to a first power coupling part 140 to be described later. The first impeller 122 is selectively coupled to the motor unit 110 by being selectively in close contact with the first electromagnet 143 of the first power coupling unit 140 to be described later.

The first power coupling unit 140 selectively coupling the first impeller 122 to the motor unit 110 includes a first clutch 141, a second clutch 142, a first electromagnet 143, And includes an elastic body 144.

The first clutch 141 is mounted on one end of the rotary shaft 114 and rotates together with the rotary shaft 114 rotated by the motor 116. One end of the second clutch 142 is connected to the first impeller 122 and the other end is selectively engaged with the first clutch 141. A first electromagnet 143 is disposed at one end of the motor 116. The first electromagnet 143 is selectively coupled to the first magnetic body 123 by a current controlled by a controller 160 Wherein the first clutch (141) and the second clutch (142) are selectively engaged and the first clutch (141) and the second clutch (142) It is preferable that a first elastic body 144 for separating the clutch 142 is provided.

When the controller 160 applies a current to the first electromagnet 143, the first electromagnet 143 pulls the first magnetic body 123 and the first electromagnet 143 pulls the first magnetic body 123 by the first magnetic body 123, The rotation shaft 114 and the first impeller 122 are engaged by the second clutch 142 being engaged with the first clutch 141 by moving the first clutch 122 in the direction of the first electromagnet 143 . If the controller 160 does not apply a current to the first electromagnet 143, the first electromagnet 143 does not pull the first magnetic body 123, The first clutch 141 and the second clutch 142 are separated from each other so that the rotation shaft 114 and the first impeller 122 are not engaged. That is, when the controller 160 applies a current to the first electromagnet 143, the rotation axis 114 of the motor unit 110 and the first impeller 122 of the first pump 120 are coupled When the first impeller 122 rotates while rotating the rotation shaft 114 and the current is not applied to the first electromagnet 143, the rotation shaft 114 and the first impeller 122 The first impeller 122 does not pump the fluid when the rotation shaft 114 rotates.

A first concavo-convex portion 141a is formed on one surface of the first clutch 141 coupled to the second clutch 142, and the first concavo-convex portion 141a includes a plurality of first concavo- Concave groove 141c.

A second concavo-convex portion 142a is formed on one surface of the second clutch 142 selectively engaged with the first clutch 141, and the second concavo-convex portion 142a includes a plurality of second concavo- And a second uneven groove 142c.

The first concave and convex portion 141b of the first concave and convex portion 141a is inserted into the second concave and convex groove 142c of the second concave and convex portion 142a and the second concave and convex portion 142b Is inserted into the first uneven groove 141c of the first concave and convex portion 141a so that the first clutch 141 and the second clutch 142 are engaged and the first clutch 141 is rotated The second clutch 142 is also rotated.

A second pump 130 is disposed at the other end of the motor unit 110. The second pump 130 is selectively coupled to the motor unit 110 to receive power from the motor unit 110, And serves to pump the fluid as cooling water.

The second pump 130 includes a second impeller housing 131 and a second impeller 132 and the second impeller 132 is provided with a second magnetic body 133. The second impeller housing 131 is located at the other end of the motor unit 110. A second impeller 132 is disposed inside the second impeller housing 131 and the second impeller 132 And is selectively coupled to the motor unit 110 by a second power connection unit 150 to be described later to pump the fluid while being rotated by the power of the motor unit 110. [

The second impeller 132 is preferably provided with a second magnetic body 133 for selectively coupling the second impeller 132 to a second power coupling unit 150 to be described later. The second impeller 132 is selectively coupled to the motor unit 110 by being selectively in close contact with the second electromagnet 153 of the second power coupling unit 150 to be described later.

The second power coupling unit 150 selectively coupling the second impeller 132 to the motor unit 110 includes a third clutch 151, a fourth clutch 152, a second electromagnet 153, And includes an elastic body 154.

The second pump 130 has the same structure as that of the first pump 120 except that the second pump 130 has the same structure as that of the first pump 120. The second power connection part 150 is connected to the first power connection part 140, The second pump 130 and the second pump 130 are connected to each other through the first pump 120 and the second pump 130. The first pump 120 and the second pump 140 are connected to the first pump 120 and the second pump 130, A detailed description of the power transmitting portion 150 will be omitted.

The motor unit 110 and the first and second pumps 120 and 130 are selectively coupled to the first power coupling unit 140 and the second power coupling unit 150, The connection unit 140 and the second power connection unit 150 are controlled by the controller 160.

The controller 160 selectively controls the current supplied to the first electromagnet 143 of the first power connection unit 140 and the second electromagnet 153 of the second power connection unit 150, The first pump 120 and the second pump 130 are selectively connected to the motor unit 110 so that the fluid is pumped while being operated by the power of the motor unit 110.

Referring to FIG. 5, the first pump 120, the second pump 130, the first power connection 140, and the second power connection 150 may include a first pump 120 ', a second pump 130, ', The first power connection part 140', and the second power connection part 150 '.

The first pump 120 'includes a first impeller housing 121' and a first impeller 122 '. The first impeller 122' includes a first magnet 123 ' The second pump 130 'includes a second impeller housing 131' and a second impeller 132 ', and the second impeller 132' is provided with a second magnet 133 '.

The first power coupling 140 'includes a first clutch 141', a second clutch 142 'and a first electromagnet 143', and the second power coupling 150 ' A first clutch 151 ', a fourth clutch 152' and a second electromagnet 153 '.

The first pump 120'and the second pump 130'may not include the first magnet 123'and the second magnet 133'that are not the first magnetic body 123 and the second magnetic body 133, The first power connection unit 140 'and the second power connection unit 150' do not include the first elastic member 144 and the second elastic member 155, respectively, thereby simplifying the structure and reducing the number of components . The third clutch 151 'and the fourth clutch 152' of the first clutch 141 'and the second clutch 142' and the second power coupling 150 'of the first power coupling 140' Is made by attraction and repulsion between the first magnet 123 'and the second magnet 133' and between the first electromagnet 143 'and the second electromagnet 153'.

When a current is applied to the first electromagnet 143 'and the second electromagnet 153', the first magnet 123 ', the second magnet 133' and the first electromagnet 143 ' A current is applied to the first electromagnet 143 'and the second electromagnet 153' so that the first clutch 141 'and the second clutch 142' are brought into close contact with each other, A repulsive force is generated between the first magnet 123 'and the second magnet 133' and between the first electromagnet 143 'and the second electromagnet 153' so that the first clutch 141 ' And the second clutch 142 'are separated from each other.

 6 to 7, a dual type water pump 200 according to another embodiment of the present invention includes a motor-solenoid body portion 210, a first cover-impeller portion 220, a second cover- An impeller 230, and a controller 240.

The motor-solenoid body 210 includes a motor 211, a rotary shaft 212, a first gear 213, a second gear 214, a first solenoid 215, a second solenoid 216, A spring 217, and a second spring 218.

The motor 211 supplies power for rotating the rotating shaft 212 and the motor 211 is positioned adjacent to the rotating shaft 212.

A first gear 213 and a second gear 214 are provided at both ends of the rotating shaft 212 and a first solenoid 215 and a second solenoid 216 correspond to both ends of the motor 211 .

The first solenoid 215 and the second solenoid 216 are controlled by a control unit 240 and the controller 240 controls the first solenoid 215 and the second solenoid 216, The first solenoid 215 and the second solenoid 216 pull the first gear 213 and the second gear 214 which are positioned adjacent to each other, The gear 213 and the second gear 214 are moved in the direction of the first solenoid 215 and the second solenoid 216.

A first spring 217 is provided between the rotary shaft 212 and the first gear 213 to separate the first gear 213 from the rotary shaft 212. The rotary shaft 212 is rotatably supported by the first shaft 213, And a second spring 218 is provided between the first gear 214 and the second gear 214 to separate the second gear 214 from the rotation shaft 212.

The first cover-impeller portion 220 is disposed at one end of the motor-solenoid body 210 and the first cover-impeller portion 220 is selectively coupled to the first gear 213, And serves to pump the fluid, which is cooling water, while receiving the power of the pump 211.

The first cover-impeller portion 220 includes a first cover 221, a first impeller body 222, and a third gear 223. The first cover 221 is located at one end of the motor-solenoid body 210 and preferably closes one end of the case of the motor-solenoid body 210, And a first impeller body 222 is provided therein.

One end of the third gear 223 is attached to the first impeller body 222, and the second impeller body 222 is mounted on the first impeller body 222. The first impeller body 222 is coupled with the rotation shaft 212, . When the first gear 213 is moved from one end of the rotation shaft 212 by the first spring 217 and the operation of the first solenoid 215, The first impeller body 222 is selectively rotated by being selectively coupled to the first impeller body 213. [ A bearing member (not shown) may be provided between the first impeller body 222 and the third gear 223. The bearing member (not shown) may also be provided between the first cover 221 and the first impeller body 222.

When the control unit 240 applies a current to the first solenoid 215, the first gear 213 moves toward the first solenoid 215 to be separated from the third gear 223, The impeller body 222 is not engaged with the rotation shaft 212 and is not rotated by the rotation of the rotation shaft 212. When the control unit 240 does not apply a current to the first solenoid 215, the first spring 213 causes the first gear 213 to move in the direction opposite to the first solenoid 215 And the first impeller body 222 is coupled to the third gear 223 so that the first impeller body 222 is engaged with the rotation shaft 212 and rotated by the rotation of the rotation shaft 212.

The second cover-impeller portion 230 is located at the other end of the motor-solenoid body portion 210 and the second cover-impeller portion 230 is selectively engaged with the second gear 214, And serves to pump the fluid, which is cooling water, while receiving the power of the pump 211.

The second cover-impeller portion 230 includes a second cover 231, a second impeller body 232 and a fourth gear 233, and the second cover-impeller portion 230 includes the first cover- Only the position of the cover-impeller portion 220 is different from that of the cover-impeller portion 220, and the structure and the function of each component are the same, and a detailed description thereof will be omitted.

The motor-solenoid body portion 210 and the first cover-impeller portion 220 and the second cover-impeller portion 230 are selectively coupled by a controller 240, and the controller 240 controls the motor- The third solenoid 215 and the second solenoid 216 of the solenoid body 210 by selectively controlling the current supplied to the first solenoid 215 and the second solenoid 216 of the solenoid body 210, The motor-solenoid body 210 and the first cover-impeller portion 220 and the second cover-impeller portion 230 are selectively coupled with each other by selectively engaging the motor-solenoid body portion 210 and the fourth gear 233, The first impeller main body 222 and the second impeller main body 232 are rotated by the rotation of the rotating shaft 212.

Accordingly, the first pump 120, the second pump 130, the first cover-impeller portion 220, and the second pump-impeller portion 220 provided at both ends of the rotating shafts 114 and 212 are driven by using one motor 116 and 211, The first pump 120 provided at both ends of the rotating shafts 114 and 212 can reduce the number of parts to reduce the cost by reducing the number of parts by reducing the weight and the fuel consumption by rotating the cover-impeller part 230, The second pump 130, the first cover-impeller part 220 and the second cover-impeller part 230 can be simultaneously driven, thereby preventing damage due to heat.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Dual type water pump 110: Motor part
112: motor housing 114:
116: motor 120: first pump
121: first impeller housing 122: first impeller
123: first magnetic body 130: second pump
131: second impeller housing 132: second impeller
133: second magnetic body 140: first power connection part
141: first clutch 142: second clutch
143: first electromagnet 144: first elastic body
150: second power coupling 151: third clutch
152: fourth clutch 153: second electromagnet
154: second elastic body 160: controller
200: Dual type water pump 210: Motor-solenoid body part
211: motor 212:
213: first gear 214: second gear
215: first solenoid 216: second solenoid
220: first cover-impeller part 221: first cover
222: first impeller main body 223: third gear
230: second cover-impeller portion 231: second cover
232: second impeller main body 233: fourth gear

Claims (15)

A motor unit in which a rotating shaft rotates by a driving force supplied from a motor;
A first pump positioned at one end of the motor unit and selectively coupled to the motor unit to receive power from the motor unit to pump the fluid while rotating;
A second pump positioned at the other end of the motor unit and selectively coupled to the motor unit to receive power from the motor unit to pump the fluid while rotating;
A first power connection part located between the motor part and the first pump and selectively connecting the motor part and the first pump;
A second power connection part located between the motor part and the second pump, the second power connection part selectively coupling the motor part and the second pump; And
And a controller for controlling the operation of the first power coupling part and the second power coupling part to selectively couple the motor part to the first pump and the second pump.
The method according to claim 1,
The motor unit includes:
A motor housing having a closed cylindrical shape and having a first through hole and a second through hole on one end face and the other end face,
A rotation shaft positioned inside the motor housing and having both ends passing through the first through hole and the second through hole,
And a motor provided inside the motor housing to provide power for rotating the rotation shaft.
The method of claim 2,
Wherein a first groove and a second groove, in which the first power connection portion and the second power connection portion are located, are inserted into the motor housing from the outer side to the inner side of the motor housing, respectively,
Wherein a first through hole is formed in the center of the first groove and a second through hole is formed in the second groove.
The method according to claim 1,
Wherein the first pump comprises:
A first impeller housing positioned at one end of the motor unit,
And a first impeller disposed inside the first impeller housing and selectively pumping the fluid that is selectively coupled to the motor unit and is rotated by the power of the motor unit,
Wherein the first impeller includes a first magnetic body selectively coupled to the first power coupling portion.
The method of claim 4,
Wherein the first power coupling portion comprises:
A first clutch mounted on one end of the rotary shaft and rotated by rotation of the rotary shaft,
A second clutch having one end connected to the first impeller and the other end selectively engaged with the first clutch;
A first electromagnet disposed at one end of the motor unit and selectively coupled to the first magnetic body by a current controlled by the controller to selectively couple the first clutch and the second clutch;
And a first elastic body provided between the first clutch and the second clutch to provide an elastic force for separating the first clutch and the second clutch.
The method of claim 5,
A first concavo-convex portion having a plurality of first concavo-convex portions and a first concavo-convex groove is formed on one surface of the first clutch coupled to the second clutch,
A second concavo-convex portion having the second concavo-convex and the second concavo-convex groove formed on one surface of the second clutch,
Wherein the first irregularities are coupled to the second irregularities, and the second irregularities are coupled to the first irregularities.
The method according to claim 1,
The second pump includes:
A second impeller housing located at the other end of the motor unit,
And a second impeller disposed inside the second impeller housing and selectively pumping the fluid that is selectively coupled to the motor unit and is rotated by the power of the motor unit,
And the second impeller is provided with a second magnetic body selectively coupled to the second power coupling portion.
The method of claim 7,
The second power connection portion includes:
A third clutch mounted on the other end of the rotary shaft and rotated by rotation of the rotary shaft,
A fourth clutch having one end connected to the second impeller and the other end selectively engaged with the third clutch;
A second electromagnet disposed at the other end of the motor unit and selectively coupled to the second magnetic body by a current controlled by the controller to selectively couple the third clutch and the fourth clutch;
And a second elastic body provided between the third clutch and the fourth clutch to provide an elastic force for separating the third clutch and the fourth clutch.
The method of claim 8,
A third concavo-convex portion having a plurality of third concavo-convex portions and a third concavo-convex groove is formed on one surface of the third clutch coupled to the fourth clutch,
A fourth concavo-convex portion having the fourth concavo-convex and the fourth concavo-convex groove formed on one surface of the fourth clutch,
Wherein the third irregularities are coupled to the fourth irregularities, and the fourth irregularities are coupled to the third irregularities.
The method according to claim 1,
Wherein the first pump comprises:
A first impeller housing positioned at one end of the motor unit,
And a first impeller disposed inside the first impeller housing and selectively pumping the fluid that is selectively coupled to the motor unit and is rotated by the power of the motor unit,
Wherein the first impeller includes a first magnet selectively coupled to the first power connection portion,
The second pump includes:
A second impeller housing located at one end of the motor unit,
And a second impeller disposed inside the second impeller housing and selectively pumping the fluid that is selectively coupled to the motor unit and is rotated by the power of the motor unit,
And the second impeller is provided with a second magnet selectively coupled to the second power coupling.
The method of claim 10,
Wherein the first power coupling portion comprises:
A first clutch mounted on one end of the rotary shaft and rotated by rotation of the rotary shaft,
A second clutch having one end connected to the first impeller and the other end selectively engaged with the first clutch;
And a first electromagnet disposed at one end of the motor unit and selectively coupled to the first magnet by a current controlled by the controller to selectively couple the first clutch and the second clutch,
The second power connection portion includes:
A third clutch mounted on one end of the rotary shaft and rotated by rotation of the rotary shaft,
A fourth clutch having one end connected to the second impeller and the other end selectively engaged with the third clutch;
And a second electromagnet disposed at one end of the motor unit and selectively coupled to the second magnet by a current controlled by the controller to selectively couple the third clutch and the fourth clutch.
A motor-solenoid body portion having first and second gears provided at both ends of a rotating shaft, the first and second solenoids being provided at both ends of the motor, the rotating shaft being rotated by a driving force supplied from a motor;
A first cover-impeller portion disposed at one end of the motor-solenoid body portion and selectively coupled to the first gear to pump the fluid while receiving power of the motor to rotate;
A second cover-impeller portion located at the other end of the motor-solenoid body portion and selectively coupled to the second gear to pump the fluid while receiving the power of the motor; And
And a controller for controlling the operation of the first solenoid and the second solenoid to selectively couple the motor-solenoid body portion and the first cover-impeller portion and the second cover-impeller portion.
The method of claim 12,
A second spring which separates the second gear from the rotation shaft is provided between the rotation shaft and the first gear, and a second spring which separates the first gear from the rotation shaft is provided between the rotation shaft and the first gear, And a second water pump for supplying water to the second pump.
The method of claim 12,
The first cover-
A first cover positioned at one end of the motor-solenoid body,
A first impeller body provided inside the first cover and selectively pumping the fluid to be rotated while being selectively coupled to the rotation shaft;
And a third gear, one end of which is mounted on the first impeller body and the other end is selectively engaged with the first gear by the action of the first solenoid.
The method of claim 12,
The second cover-impeller portion,
A second cover located at the other end of the motor-solenoid body,
A second impeller body provided in the second cover and selectively pumping the fluid to be rotated while being selectively coupled to the rotary shaft;
And a fourth gear, one end of which is mounted on the second impeller body and the other end is selectively engaged with the second gear by the action of the second solenoid.

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