CN106256949B

CN106256949B - Water pump and clothes nursing machine with same

Info

Publication number: CN106256949B
Application number: CN201510333202.2A
Authority: CN
Inventors: 冯海桥; 邵佐; 李良东; 陈玉山
Original assignee: Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: Bo Xihua Electric Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2015-06-16
Filing date: 2015-06-16
Publication date: 2020-06-16
Anticipated expiration: 2035-06-16
Also published as: CN106256949A

Abstract

The invention discloses a water pump and a clothes nursing machine with the same, wherein the water pump comprises a pump body, a motor arranged in the pump body, a motor shaft and a water inlet channel connected with the pump body, and also comprises: the first pump cavity and the second pump cavity are arranged on the pump body and communicated with the water inlet channel; the first impeller and the second impeller are respectively arranged in the first pump cavity and the second pump cavity and are connected with the motor shaft; a circulating water passage and a water discharge passage respectively communicated with the first pump cavity and the second pump cavity; when the first impeller rotates, the first pump cavity discharges water in the pump cavity into the circulating water channel; when the second impeller rotates, the second pump chamber discharges water in the pump chamber into the drain passage. The invention solves the problems of space occupation and high cost of the circulating drainage pump in the prior art, on one hand, the circulating drainage function is realized by one motor, thereby saving energy and reducing water discharge; on the other hand, compared with the traditional one-way circulation drainage pump, the space is saved, and the material cost and the manufacturing process are saved.

Description

Water pump and clothes nursing machine with same

[ technical field ] A method for producing a semiconductor device

The invention relates to a water pump and a clothes care machine with the same, in particular to a washing machine.

[ background of the invention ]

In the prior art, a water pump is generally provided to drive the water in the washing machine to be discharged or circulated. One is a single-drainage pump, which only has a drainage function, and the water utilization rate of the pump is not high; the other is a circulating drainage pump, and a motor is added on the water pump, but the water pump needs two motors which respectively extend to two sides of the water pump, so the water pump occupies the space in the washing machine and has higher cost.

Aiming at the problems of space occupation and high cost of the circulating drainage pump in the prior art, an effective solution is not provided at present.

[ summary of the invention ]

The invention provides a water pump and a clothes care machine with the same, which at least solve the problems of space occupation and high cost of a circulating drainage pump in the prior art.

In order to achieve the object, in one aspect of the present invention, a water pump is provided.

The invention discloses a water pump, which comprises a pump body, a motor arranged in the pump body, a motor shaft and a water inlet channel connected with the pump body, and further comprises: the first pump cavity and the second pump cavity are arranged on the pump body and communicated with the water inlet channel; the first impeller and the second impeller are respectively arranged in the first pump cavity and the second pump cavity and are connected with the motor shaft; a circulating water passage and a water discharge passage respectively communicated with the first pump cavity and the second pump cavity; when the first impeller rotates, the first pump cavity discharges water in the pump cavity into the circulating water channel; when the second impeller rotates, the second pump chamber discharges water in the pump chamber into the drain passage. Through the structure, when the washing machine works, water enters from the water inlet channel and fills the first pump cavity and the second pump cavity. When the washing machine needs to do internal water circulation work, the first impeller rotates, so that the first pump cavity discharges water in the pump cavity into the circulating water channel. When the washing machine needs to do drainage work, and the second impeller rotates, the second pump cavity discharges water in the pump cavity into the drainage channel.

Preferably, the first and second pump chambers are located on either side of the pump body. The first pump cavity and the second pump cavity are arranged on two sides of the pump body, and the motor is arranged in the middle of the pump body, so that the structure reasonably saves the space of the pump body.

Preferably, the inhalant canal contains the main entrance and first branch pipe and the second branch pipe with the main entrance intercommunication, first branch pipe and first pump chamber intercommunication, second branch pipe and second pump chamber intercommunication. The pipeline structure enables the pipelines to be communicated with each other.

Preferably, the first and second impellers do not rotate simultaneously. Because the rotation of the motor shaft can drive the impellers to rotate, if water circulation work and drainage work are to be realized respectively, only one impeller can rotate, and therefore the first impeller and the second impeller do not rotate simultaneously.

Preferably, when the motor rotates in a first direction, the first impeller rotates and the second impeller does not rotate. When the motor rotates clockwise, the first impeller rotates, so that water in the pump cavity is discharged into the circulating water channel by the first pump cavity, and at the moment, the second impeller does not rotate, so that water circulation is realized.

Preferably, when the motor rotates in the second direction, the second impeller rotates and the first impeller does not rotate. When the motor rotates along the anticlockwise direction, the second impeller rotates, so that water in the pump cavity is discharged into the drainage channel by the second pump cavity, and at the moment, the first impeller does not rotate, and drainage is realized.

Preferably, the motor shaft penetrates through the motor, and the first impeller and the second impeller are respectively arranged at two ends of the motor shaft and are positioned at two sides of the motor. Because the invention adopts one motor, the first impeller and the second impeller are fixed on the motor shaft of the same motor, the motor shaft penetrates through the motor, and the extended two ends are respectively provided with the first impeller and the second impeller.

Preferably, the first impeller and the second impeller are respectively provided with a unidirectional transmission device for controlling unidirectional rotation of the impellers. Through setting up one-way transmission, control first impeller and second impeller unidirectional rotation to when the motor rotates, realize first impeller and second impeller and do not rotate simultaneously, in order to realize hydrologic cycle work and drainage work.

Preferably, the one-way transmission device is composed of a ratchet wheel, a pawl and an elastic sheet; the pawl is arranged on the impeller, the elastic piece is arranged on the pawl, and the ratchet wheel is arranged on a motor shaft. The ratchet wheel, the pawl and the elastic sheet form a one-way transmission structure, and the elastic sheet provides pre-pressure for the pawl. When the ratchet wheel rotates clockwise, the teeth of the ratchet wheel spring the pawl open, the pawl is in a release state, and the pawl does not rotate along with the ratchet wheel. When the ratchet wheel rotates anticlockwise, the elastic sheet presses the pawl on the teeth of the ratchet wheel, so that the ratchet wheel drives the pawl to rotate, the pawl is integrated on the impeller, the impeller rotates along with the pawl, and the impeller can be controlled to rotate or not through the forward and reverse rotation of the motor.

Preferably, the first impeller comprises an annular support surrounding the motor shaft and blades on the support, and the pawl is arranged on the inner wall of the annular support. The second impeller comprises an annular support surrounding the motor shaft and blades located on the support, and the pawl is arranged on the inner wall of the annular support. The structure is accurate and compact in design and saves space.

Preferably, the motor is a three-phase brushless dc motor. The motor is used as a driving source, the efficiency is high, the rotating speed and the rotating direction are controllable, and one motor realizes two functions of circulating water drainage. When the washing machine needs circulating water or draining, the washing machine can be realized by controlling the motor to rotate clockwise and anticlockwise.

According to another aspect of the invention, there is also provided a clothes care machine, comprising a machine body and a washing tub located in the machine body, and the water pump in the above scheme.

According to the invention, the problems of space occupation and high cost of the circulating drainage pump in the prior art are solved, on one hand, the circulating drainage function is realized through one motor, so that energy is saved, and water discharge is reduced; on the other hand, compared with the traditional one-way circulation drainage pump, the one-way circulation drainage pump saves one motor, saves space, material cost and manufacturing process.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic perspective view of a water pump;

FIG. 2 is a schematic plan view of the water pump;

FIG. 3 is a schematic cross-sectional view taken along a-a of the water pump of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along the line b-b of the water pump of FIG. 2;

FIG. 5 is an enlarged schematic view of area A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along the line c-c of the water pump of FIG. 2;

fig. 7 is an enlarged schematic view of region B in fig. 6.

[ detailed description ] embodiments

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 1 is a schematic perspective view of a water pump, fig. 2 is a schematic plan view of the water pump, and fig. 3 is a schematic sectional view taken along a-a direction of the water pump in fig. 2, as shown in fig. 1, 2, and 3:

water pump 1, including the pump body 2, set up motor 3, motor shaft 4 in the pump body and with the inhalant canal 5 that the pump body 2 is connected, still include: a first pump chamber 6 and a second pump chamber 7 which are arranged on the pump body 2 and communicated with the water inlet channel 5; wherein the first pump chamber 6 is used for water circulation and the second pump chamber 7 is used for water drainage.

A first impeller 8 and a second impeller 9 which are respectively arranged in the first pump chamber 6 and the second pump chamber 7 and connected with the motor shaft 4; wherein, the first impeller 8 and the second impeller 9 are respectively positioned in the first pump chamber 6 and the second pump chamber 7 and fixed on the motor shaft 4 of the motor 3.

A circulating water passage 10 and a water discharge passage 11 respectively communicating with the first pump chamber 6 and the second pump chamber 7; when the first impeller 8 rotates, the first pump chamber 6 discharges water in the pump chamber into the circulating water channel 10; when the second impeller 9 rotates, the second pump chamber 7 discharges the water in the pump chamber into the drain passage 11.

With the above structure, when the washing machine operates, water enters from the water inlet passage 5 and fills the first pump chamber 6 and the second pump chamber 7. When the washing machine needs to do internal water circulation work, the first impeller 8 rotates, so that the first pump chamber 6 discharges water in the pump chamber into the circulating water passage 10. When the washing machine needs to do the drainage work, the second pump chamber 7 discharges the water in the pump chamber into the drainage channel 11 when the second impeller 9 rotates.

Preferably, as shown in fig. 1, the first pump chamber 6 and the second pump chamber 7 are located on both sides of the pump body, respectively. The first pump cavity 6 and the second pump cavity 7 are arranged on two sides of the pump body 2, and the motor 3 is arranged in the middle of the pump body 2, so that the structure reasonably saves the space of the pump body.

Preferably, as shown in fig. 1, the water inlet passage 5 includes a main passage 50 and a first branch pipe 51 and a second branch pipe 52 communicated with the main passage, the first branch pipe 51 is communicated with the first pump chamber 6, the second branch pipe 52 is communicated with the second pump chamber 7, and the pipe structure enables the pipes to be communicated with each other.

Preferably, the first impeller 8 and the second impeller 9 do not rotate simultaneously. Since the rotation of the motor shaft drives the impellers to rotate, only one impeller can rotate if water circulation work and water drainage work are respectively realized, and therefore the first impeller 8 and the second impeller 9 do not rotate simultaneously.

Preferably, as described above, when the motor 3 rotates in the first direction, the first impeller 8 rotates and the second impeller 9 does not rotate. If the motor 3 rotates clockwise, the first impeller 8 rotates, so that the first pump cavity 6 discharges water in the pump cavity into the circulating water channel 10, and at the moment, the second impeller 9 does not rotate, and water circulation is realized.

Preferably, when the motor 3 rotates in the second direction, the second impeller 9 rotates and the first impeller 8 does not rotate. If the motor 3 rotates in the counterclockwise direction, the second impeller 9 rotates, so that the second pump chamber 7 discharges the water in the pump chamber into the drainage channel 11, and at the moment, the first impeller 8 does not rotate, and the water discharge is realized.

Preferably, as shown in fig. 3, the motor shaft 4 penetrates through the motor, and the first impeller 8 and the second impeller 9 are respectively installed at both ends of the motor shaft, at both sides of the motor. Because the invention adopts a motor, the first impeller 8 and the second impeller 9 are fixed on the motor shaft 4 of the same motor, the motor shaft 4 penetrates through the motor 3, and the first impeller 8 and the second impeller 9 are respectively arranged at the two extending ends.

Preferably, as shown in fig. 3, the first impeller 8 and the second impeller 9 in the above solution are respectively provided with a unidirectional transmission device 12 for controlling unidirectional rotation of the first impeller 8 and the second impeller 9. Through setting up one-way transmission 12, control

first impeller

8 and 9 unilateral rotations of second impeller to when the motor rotates, realize

first impeller

8 and 9 non-simultaneous rotations of second impeller, in order to realize hydrologic cycle work and drainage work.

In a preferred embodiment, FIG. 4 is a schematic cross-sectional view taken along the line b-b of the water pump of FIG. 2; fig. 5 is an enlarged schematic view of the area a in fig. 4, as shown in fig. 4 and 5:

in the first pump chamber 6, namely the circulating water pump chamber, the unidirectional transmission device 12a in the scheme is composed of a ratchet wheel 13a, a pawl 14a and an elastic sheet 15 a; the pawl 14a is arranged on the impeller 8, the spring piece 15a is arranged on the pawl 14a, and the ratchet wheel 13a is arranged on the motor shaft 4. The spring 15 provides a pre-load to the pawl 14 so that the pawl 14a contacts the ratchet wheel 13a, and two unidirectional transmissions may be provided.

When the ratchet wheel 13a rotates clockwise, the teeth of the ratchet wheel 13a spring the pawl 14a open, and the pawl 14a is in the released state, so that the pawl 14a does not rotate with the ratchet wheel 13 a. When the ratchet wheel 13a rotates anticlockwise, the spring piece 15a presses the pawl 14a on the tooth of the ratchet wheel 13a, so that the ratchet wheel 13a drives the pawl 14a to rotate, and because the pawl 14a is integrated on the impeller 8, the impeller 8 rotates along with the pawl, and whether the impeller 8 rotates or not can be controlled through the forward and reverse rotation of the motor.

In correspondence with the above-mentioned one-way transmission 12a in the first pump chamber 6, in the second pump chamber 7, i.e. in the drain pump chamber, there is provided a one-way transmission 12b, fig. 6 being a schematic sectional view in the direction c-c of the water pump in fig. 2; fig. 7 is an enlarged schematic view of the region B in fig. 6, as shown in fig. 6 and 7:

when the ratchet wheel 13b rotates clockwise, the teeth of the ratchet wheel 13b spring the pawl 14b open, and the pawl 14b is in the released state, so that the pawl 14b does not rotate with the ratchet wheel 13 a. When the ratchet wheel 13b rotates anticlockwise, the spring piece 15b presses the pawl 14b on the teeth of the ratchet wheel 13a, so that the ratchet wheel 13b drives the pawl 14b to rotate, and because the pawl 14b is integrated on the impeller 9, the impeller 9 rotates along with the pawl, and whether the impeller 9 rotates or not can be controlled through the forward and reverse rotation of the motor.

When the washing machine needs to do internal water circulation work, as mentioned above, the motor 3 rotates clockwise, and the ratchet 13a on the rotating shaft 4 in the first pump chamber 6, i.e. the circulating water pump chamber, drives the pawl 14a to rotate; meanwhile, the pawl 14b in the second pump chamber 7, i.e. the drain pump chamber, is in a release state and does not rotate along with the ratchet wheel 13b, at this time, the impeller 8 in the circulating water pump chamber 6 works, and the impeller of the drain pump chamber 7 does not work.

In the corresponding counterclockwise rotation, the impeller 9 in the discharge pump chamber 7 is operated, and the impeller 8 in the circulating pump chamber 6 is not operated.

Preferably, as shown in fig. 4 and 6, the first impeller 8 comprises an annular seat 80 surrounding the motor shaft and a blade 81 located on the seat, the pawl being provided on the inner wall of the annular seat 80. The second impeller 9 comprises an annular seat 90 surrounding the motor shaft and a vane 91 on the seat, said pawl being provided on the inner wall of the annular seat 90. The structure is used for arranging a one-way transmission device, realizes that the ratchet wheel drives the impeller to rotate, and has the advantages of precise and compact design and space saving.

Preferably, the motor in the above scheme is a three-phase brushless direct current motor, the motor is used as a driving source, the efficiency is high, the rotating speed and the rotating direction are controllable, and one motor realizes two functions of circulating water drainage. When the washing machine needs circulating water or draining, the washing machine can be realized by controlling the motor to rotate clockwise and anticlockwise.

According to another aspect of the present invention, there is also provided a clothes care machine, including a machine body, a washing tub located in the machine body, and a water pump corresponding to the above aspects, which are not described herein again.

The various embodiments described above and shown in the drawings are illustrative of the invention and are not exhaustive of the invention. Any modification of the present invention by a person of ordinary skill in the related art within the scope of the basic technical idea of the present invention is within the scope of the present invention.

Claims

1. The utility model provides a water pump (1), includes the pump body (2), set up motor (3), motor shaft (4) in the pump body and with pump body coupling's inhalant canal (5), its characterized in that includes:

a first pump cavity (6) and a second pump cavity (7) which are arranged on the pump body (2) and communicated with the water inlet channel (5);

a first impeller (8) and a second impeller (9) which are respectively arranged in the first pump cavity (6) and the second pump cavity (7) and connected with the motor shaft (4);

a circulating water channel (10) and a drainage channel (11) which are respectively communicated with the first pump cavity (6) and the second pump cavity (7); wherein the content of the first and second substances,

when the first impeller (8) rotates, the first pump chamber (6) discharges water in the pump chamber into the circulating water channel (10);

when the second impeller (9) rotates, the second pump chamber (7) discharges the water in the pump chamber into the drain passage (11).

2. The water pump of claim 1, wherein:

the first pump cavity (6) and the second pump cavity (7) are respectively positioned on two sides of the pump body (2).

3. The water pump of claim 1, wherein:

the water inlet channel (5) comprises a main channel (50), a first branch pipe (51) and a second branch pipe (52), the first branch pipe (51) is communicated with the main pipeline, the second branch pipe (52) is communicated with the second pump chamber (7), and the first pump chamber (6) is communicated with the second pump chamber.

4. The water pump of claim 1, wherein:

the first impeller (8) and the second impeller (9) do not rotate simultaneously.

5. The water pump of claim 4, wherein:

when the motor (3) rotates along a first direction, the first impeller (8) rotates, and the second impeller (9) does not rotate.

6. The water pump of claim 5, wherein:

when the motor (3) rotates along the second direction, the second impeller (9) rotates, and the first impeller (8) does not rotate.

7. The water pump of claim 1, wherein: the motor shaft (4) penetrates through the motor, and the first impeller (8) and the second impeller (9) are respectively arranged at two ends of the motor shaft (4) and are positioned at two sides of the motor (3).

8. The water pump of claim 1, wherein:

and the first impeller (8) and the second impeller (9) are respectively provided with a one-way transmission device (12) for controlling the one-way rotation of the first impeller (8) and the second impeller (9).

9. The water pump of claim 8, wherein:

the one-way transmission device (12) consists of a ratchet wheel (13), a pawl (14) and an elastic sheet (15);

the pawl (14) is arranged on the impeller, the elastic piece (15) is arranged on the pawl (14), and the ratchet wheel (13) is arranged on the motor shaft (4).

10. The water pump of claim 9, wherein:

the first impeller (8) comprises an annular support (80) surrounding a motor shaft and blades (81) positioned on the support, and the pawl is arranged on the inner wall of the annular support (80);

the second impeller (9) comprises an annular support (90) surrounding the motor shaft and blades (91) positioned on the support, and the pawls are arranged on the inner wall of the annular support (90).

11. The water pump of claim 1, wherein: the motor is a three-phase brushless direct current motor.

12. The utility model provides a clothing care machine, includes the organism and is located the pail in the organism, its characterized in that:

the laundry care machine comprising a water pump according to any of the preceding claims 1 to 11.