CN218991940U - Liquid pump with exhaust structure - Google Patents
Liquid pump with exhaust structure Download PDFInfo
- Publication number
- CN218991940U CN218991940U CN202223252692.8U CN202223252692U CN218991940U CN 218991940 U CN218991940 U CN 218991940U CN 202223252692 U CN202223252692 U CN 202223252692U CN 218991940 U CN218991940 U CN 218991940U
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- Prior art keywords
- pump
- cavity
- liquid
- housing part
- rotor
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- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims 6
- 239000000565 sealant Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000004382 potting Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Abstract
The utility model discloses a liquid pump with an exhaust structure, which comprises: a pump housing and a power assembly. The pump shell is provided with a pump cavity, and a liquid inlet and a liquid outlet which are communicated with the pump cavity, and the position of the liquid inlet is not higher than the pump cavity. The power assembly comprises an impeller and a driving motor, the impeller is arranged in the pump cavity, the driving motor is arranged in the pump shell, and the driving motor is connected with the impeller and is used for driving the impeller to rotate. The pump shell is provided with an exhaust channel, one end of the exhaust channel is provided with an exhaust port communicated with the outside, the position of the exhaust port is higher than that of the pump cavity, and the other end of the exhaust channel is communicated with the upper end of the pump cavity. The liquid pump with the structure can help to exhaust the air in the pump cavity when the liquid pump is installed, so that the liquid can fill the pump cavity, and the liquid pump can work normally.
Description
Technical Field
The present utility model relates to fluid delivery devices, and more particularly to a liquid pump with an exhaust structure.
Background
When the existing liquid pump works, the pump needs to be inserted into liquid, after the liquid fills the pump cavity, the motor can drive the impeller in the pump cavity to rotate, and when the impeller rotates, driving liquid is input into the pump cavity through the liquid inlet and is output outwards through the liquid outlet. However, in actual use, although the pump has been inserted into the liquid, the liquid still has difficulty filling the pump chamber, resulting in the liquid pump not functioning properly.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the liquid pump with the exhaust structure, which can help to exhaust the air in the pump cavity when the liquid pump is installed, so that the liquid can fill the pump cavity, and the liquid pump can work normally.
According to an embodiment of the present utility model, a liquid pump with a gas discharging structure includes: the pump shell is provided with a pump cavity, a liquid inlet and a liquid outlet which are communicated with the pump cavity, and the position of the liquid inlet is not higher than that of the pump cavity; the power assembly comprises an impeller and a driving motor, the impeller is arranged in the pump cavity, the driving motor is arranged in the pump shell, and the driving motor is connected with the impeller and is used for driving the impeller to rotate; the pump comprises a pump shell, a pump cavity and a pump cover, wherein the pump shell is provided with an exhaust channel, one end of the exhaust channel is provided with an exhaust port communicated with the outside, the position of the exhaust port is higher than that of the pump cavity, and the other end of the exhaust channel is communicated with the upper end of the pump cavity.
According to the embodiment of the utility model, the liquid pump with the exhaust structure has at least the following beneficial effects: when the liquid pump is installed and used, the liquid pump is inserted into liquid downwards, so that the liquid level exceeds the pump cavity. In the process of inserting the liquid pump, because the upper end of the pump cavity is communicated with the outside through the exhaust channel, the air in the pump cavity can be gradually discharged along with the lifting of the liquid level, so that the pump cavity can be better filled with the liquid, and the normal operation of the liquid pump is not influenced.
According to some embodiments of the utility model, the exhaust port is oriented in a horizontal direction.
According to some embodiments of the utility model, the pump housing is provided with a rotor cavity and a stator cavity, the rotor of the driving motor is arranged in the rotor cavity, the impeller is connected to the rotor, the stator of the driving motor is arranged in the stator cavity, the rotor cavity and the stator cavity are separated from each other by a cavity wall of the rotor cavity, the rotor cavity is arranged above the pump cavity, the lower end of the rotor cavity is communicated with the pump cavity, and the other end of the exhaust channel is communicated with the upper end of the pump cavity by the rotor cavity.
According to some embodiments of the utility model, the impeller is a centrifugal impeller, and the other end of the exhaust passage communicates with a space on one axial side of the impeller.
According to some embodiments of the utility model, the pump shell is provided with a liquid inlet, the liquid inlet is positioned at the lower side of the pump cavity, the hole axis of the liquid inlet is vertically arranged, the upper end of the liquid inlet is communicated with the pump cavity, and the liquid inlet is an orifice at the lower end of the liquid inlet.
According to some embodiments of the utility model, the pump housing comprises a main housing comprising an outer housing portion, a cylindrical housing portion, and a connection portion, the stator cavity is disposed in the outer housing portion, the rotor cavity is disposed in the cylindrical housing portion, the cylindrical housing portion is located in the stator cavity and one end is disposed in the outer housing portion, the rotor cavity and the stator cavity are separated by a housing wall of the cylindrical housing portion, the connection portion is disposed in the stator cavity, one end of the connection portion is connected with the outer housing portion and the other end is connected with the cylindrical housing portion, and the exhaust passage is a straight through hole penetrating the outer housing portion, the connection portion, and the cylindrical housing portion.
According to some embodiments of the utility model, the pump housing comprises a main housing comprising an outer housing portion and a cylindrical housing portion, the stator cavity is disposed in the outer housing portion, the rotor cavity is disposed in the cylindrical housing portion, the cylindrical housing portion is located in the stator cavity and one end is disposed in the outer housing portion, the rotor cavity and the stator cavity are separated by a housing wall of the cylindrical housing portion, the stator cavity is filled with a potting adhesive, and the exhaust passage is a through hole penetrating the outer housing portion, the potting adhesive, and the cylindrical housing portion.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is a second perspective view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view taken along the A-A direction of the structure shown in FIG. 2;
FIG. 4 is a third perspective view of an embodiment of the present utility model;
FIG. 5 is a schematic perspective view of a main housing according to an embodiment of the present utility model;
fig. 6 is a second perspective view of the main housing according to the embodiment of the present utility model.
Reference numerals:
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 3, a liquid pump with a degassing structure, comprising: pump housing 100 and power assembly 200. The pump housing 100 is provided with a pump chamber 110, and a liquid inlet 120 and a liquid outlet 130 communicating with the pump chamber 110, the liquid inlet 120 being located at a position not higher than the pump chamber 110. The power assembly 200 includes an impeller 210 and a driving motor 220, the impeller 210 is disposed in the pump chamber 110, the driving motor 220 is disposed in the pump housing 100, and the driving motor 220 is connected to the impeller 210 and is used for driving the impeller 210 to rotate. Wherein, the pump case 100 is provided with an exhaust passage 140, one end of the exhaust passage 140 is provided with an exhaust port 141 communicated with the outside, the exhaust port 141 is located higher than the pump chamber 110, and the other end of the exhaust passage 140 is communicated with the upper end of the pump chamber 110.
The liquid pump is inserted downward into the liquid so that the liquid level exceeds the pump chamber 110 when the liquid pump is installed and used. In the process of inserting the liquid pump, since the upper end of the pump cavity 110 is communicated with the outside through the exhaust channel 140, the air in the pump cavity 110 can be gradually exhausted along with the lifting of the liquid level, so that the pump cavity 110 can be better filled with the liquid, and the normal operation of the liquid pump is not affected.
In an embodiment, the air outlet 141 faces in a horizontal direction. In operation of the liquid pump, when the pump chamber 110 is pressurized too much to press out liquid to the air discharge channel 140, since the air discharge port 141 faces horizontally, when the immersion liquid level of the liquid pump is set near the air discharge port 141, even if the air discharge channel 140 discharges liquid, the liquid can be horizontally ejected near the liquid level, with little influence on the external equipment components.
In an embodiment, the pump housing 100 is provided with a rotor chamber 160 and a stator chamber 170, a rotor 221 of the driving motor 220 is provided in the rotor chamber 160, an impeller 210 is connected to the rotor 221, a stator 222 of the driving motor 220 is provided in the stator chamber 170, the rotor chamber 160 and the stator chamber 170 are separated from each other by a chamber wall of the rotor chamber 160, the rotor chamber 160 is provided above the pump chamber 110, a lower end of the rotor chamber 160 is communicated with the pump chamber 110, and the other end of the exhaust passage 140 is communicated with an upper end of the pump chamber 110 by the rotor chamber 160. With the above structure, when the liquid pump is operated, liquid is allowed to enter the rotor chamber 160, so that heat can be dissipated from the rotor 221; the rotor cavity 160 and the stator cavity 170 are separated from each other, and liquid does not enter the stator cavity 170, so that electrical isolation is ensured; the exhaust passage 140 communicates with the pump chamber 110 via the rotor chamber 160, and since the rotor chamber 160 is located at the upper side of the pump chamber 110, air of the pump chamber 110 can be sufficiently exhausted.
In an embodiment, the impeller 210 is a centrifugal impeller, and the other end of the exhaust passage 140 communicates with a space on one side in the axial direction of the impeller 210. With the above structure, the liquid pump is a centrifugal pump, the pressure on one side of the axial direction of the centrifugal impeller is small, the exhaust channel 140 is not easy to press out liquid, and the output pressure loss of the centrifugal pump is small. In an embodiment, the lower end of the rotor chamber 160 is a space on one side of the impeller 210 in the axial direction, so that the exhaust passage 140 can communicate with the space on one side of the impeller 210 in the axial direction by communicating with the rotor chamber 160. Of course, in other embodiments, the exhaust passage 140 may also be in direct communication with the space on one axial side of the impeller 210 without the rotor chamber 160.
Referring to fig. 3 and 4, in an embodiment, the pump housing 100 is provided with a liquid inlet 150, the liquid inlet 150 is located at the lower side of the pump cavity 110, the hole axis of the liquid inlet 150 is vertically arranged, the upper end of the liquid inlet 150 is communicated with the pump cavity 110, and the liquid inlet 120 is an orifice at the lower end of the liquid inlet 150. With the above structure, the liquid inlet 150 is a straight hole at the lower side of the pump cavity 110, so that liquid can conveniently and smoothly enter the pump cavity 110 when the liquid pump is installed.
Referring to fig. 3, 5 and 6, in an embodiment, the pump housing 100 includes a main housing 101, the main housing 101 includes an outer housing portion 1011, a cylindrical housing portion 1012, and a connection portion 1013, a stator cavity 170 is provided at the outer housing portion 1011, a rotor cavity 160 is provided at the cylindrical housing portion 1012, the cylindrical housing portion 1012 is located at the stator cavity 170 and one end is provided at the outer housing portion 1011, the rotor cavity 160 and the stator cavity 170 are partitioned by a housing wall of the cylindrical housing portion 1012, the connection portion 1013 is provided at the stator cavity 170, one end of the connection portion 1013 is connected with the outer housing portion 1011 and the other end is connected with the cylindrical housing portion 1012, and the exhaust passage 140 is a straight through hole penetrating the outer housing portion 1011, the connection portion 1013 and the cylindrical housing portion 1012. The exhaust channel 140 is formed by adopting the structure, and the exhaust channel 140 is a straight through hole, so that the exhaust channel is convenient to manufacture by mould production.
In other embodiments (not shown in the drawings), the exhaust passage 140 may be provided by the following structure: the pump case 100 includes a main case 101, the main case 101 includes an outer case portion 1011 and a cylindrical case portion 1012, a stator cavity 170 is provided in the outer case portion 1011, a rotor cavity 160 is provided in the cylindrical case portion 1012, the cylindrical case portion 1012 is provided in the stator cavity 170 and one end is provided in the outer case portion 1011, the rotor cavity 160 and the stator cavity 170 are partitioned by a case wall of the cylindrical case portion 1012, a potting compound is filled in the stator cavity 170, and an exhaust passage 140 is a straight through hole penetrating the outer case portion 1011, the potting compound, and the cylindrical case portion 1012. With the above structure, the exhaust passage 140 can be formed by drilling the outer housing portion 1011, the potting adhesive and the cylindrical housing portion 1012 with an electric drill after potting the stator cavity 170 on the basis of the conventional liquid pump.
In an embodiment, the pump housing 100 further comprises an end cap 102 and a pump cavity housing 103, the end cap 102 being adapted to enclose the stator cavity 170, the pump cavity 110 being provided in the pump cavity housing 103, the end cap 102 and the pump cavity housing 103 being connected to the main housing 101.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (7)
1. A liquid pump with an exhaust structure, comprising:
the pump comprises a pump shell (100), a liquid inlet (120) and a liquid outlet (130), wherein the pump shell is provided with a pump cavity (110), the liquid inlet (120) is communicated with the pump cavity (110), and the position of the liquid inlet (120) is not higher than that of the pump cavity (110);
the power assembly (200) comprises an impeller (210) and a driving motor (220), wherein the impeller (210) is arranged in the pump cavity (110), the driving motor (220) is arranged in the pump shell (100), and the driving motor (220) is connected with the impeller (210) and is used for driving the impeller (210) to rotate;
the pump comprises a pump shell (100), and is characterized in that an exhaust channel (140) is arranged on the pump shell (100), an exhaust port (141) communicated with the outside is arranged at one end of the exhaust channel (140), the position of the exhaust port (141) is higher than that of the pump cavity (110), and the other end of the exhaust channel (140) is communicated with the upper end of the pump cavity (110).
2. A liquid pump with venting structure as defined in claim 1, wherein: the exhaust port (141) is oriented in the horizontal direction.
3. A liquid pump with a venting structure according to claim 1 or 2, characterized in that: the pump casing (100) is provided with rotor chamber (160) and stator chamber (170), rotor (221) of driving motor (220) set up in rotor chamber (160), impeller (210) connect in rotor (221), stator (222) of driving motor (220) set up in stator chamber (170), rotor chamber (160) with stator chamber (170) are passed through rotor chamber (160)'s chamber wall mutual separation, rotor chamber (160) set up in pump chamber (110) top, rotor chamber (160) lower extreme with pump chamber (110) intercommunication, the other end of exhaust passage (140) pass through rotor chamber (160) with pump chamber (110) upper end intercommunication.
4. A liquid pump with venting structure as defined in claim 1, wherein: the impeller (210) is a centrifugal impeller, and the other end of the exhaust passage (140) is communicated with a space on one axial side of the impeller (210).
5. A liquid pump with venting structure as defined in claim 1, wherein: the pump casing (100) is provided with a liquid inlet (150), the liquid inlet (150) is positioned at the lower side of the pump cavity (110), the hole axis of the liquid inlet (150) is vertically arranged, the upper end of the liquid inlet (150) is communicated with the pump cavity (110), and the liquid inlet (120) is an orifice at the lower end of the liquid inlet (150).
6. A liquid pump with venting structure as defined in claim 3, wherein: the pump housing (100) comprises a main housing (101), the main housing (101) comprises an outer housing part (1011), a cylindrical housing part (1012) and a connecting part (1013), the stator cavity (170) is arranged on the outer housing part (1011), the rotor cavity (160) is arranged on the cylindrical housing part (1012), the cylindrical housing part (1012) is arranged on the stator cavity (170) and one end of the rotor cavity (160) is arranged on the outer housing part (1011), the rotor cavity (160) and the stator cavity (170) are separated by a housing wall of the cylindrical housing part (1012), the connecting part (1013) is arranged in the stator cavity (170), one end of the connecting part (1013) is connected with the outer housing part (1011) and the other end of the connecting part is connected with the cylindrical housing part (1012), and the exhaust passage (140) is a straight through hole penetrating the outer housing part (1011), the connecting part (1013) and the cylindrical housing part (1012).
7. A liquid pump with venting structure as defined in claim 3, wherein: the pump housing (100) comprises a main housing (101), the main housing (101) comprises an outer housing part (1011) and a cylindrical housing part (1012), the stator cavity (170) is arranged on the outer housing part (1011), the rotor cavity (160) is arranged on the cylindrical housing part (1012), the cylindrical housing part (1012) is arranged on the stator cavity (170) and one end of the rotor cavity is arranged on the outer housing part (1011), the rotor cavity (160) and the stator cavity (170) are separated by a housing wall of the cylindrical housing part (1012), pouring sealant is filled in the stator cavity (170), and the exhaust passage (140) penetrates through the outer housing part (1011) and the straight through hole of the cylindrical housing part (1012).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223252692.8U CN218991940U (en) | 2022-12-02 | 2022-12-02 | Liquid pump with exhaust structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223252692.8U CN218991940U (en) | 2022-12-02 | 2022-12-02 | Liquid pump with exhaust structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218991940U true CN218991940U (en) | 2023-05-09 |
Family
ID=86219190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223252692.8U Active CN218991940U (en) | 2022-12-02 | 2022-12-02 | Liquid pump with exhaust structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218991940U (en) |
-
2022
- 2022-12-02 CN CN202223252692.8U patent/CN218991940U/en active Active
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| GR01 | Patent grant |