CN218760600U

CN218760600U - Stator for heating pump and heating pump

Info

Publication number: CN218760600U
Application number: CN202222538840.6U
Authority: CN
Inventors: 赵佳峰; 许平建; 周福胜; 朱婉婉
Original assignee: Whirlpool China Co Ltd
Current assignee: Whirlpool China Co Ltd
Priority date: 2022-09-25
Filing date: 2022-09-25
Publication date: 2023-03-28
Anticipated expiration: 2032-09-25

Abstract

The utility model discloses a stator for a heating pump, which comprises a base part and a stator shell which is coaxially protruded and arranged on one side of the base part and is integrally formed, wherein one end of the stator shell close to the base part is a second end, the other end far away from the base part is a first end, and the first end extends to the second end to limit a first wall positioned on the outer side of the stator shell and a second wall positioned on the inner side of the stator shell; wherein, the surface of the first wall where the second end is positioned is provided with a through hole. Also comprises a heating pump. The utility model adopts the stator structure which integrates the stator shell and the base part, thereby reducing the assembly cost and improving the structural stability, and the design scheme can effectively improve the safety protection of the pump and reduce the size of the motor; meanwhile, one end of the stator shell is provided with a through hole which can provide a flow channel for liquid; and the through hole is arranged at one end close to the base part, so that the length of a circulation path of the liquid in the heating pump is effectively increased.

Description

Stator for heating pump and heating pump

Technical Field

The utility model relates to a technical field of heat pump specifically is a stator and heat pump for heat pump.

Background

The heating pump comprises a plurality of important components including a rotor, a stator, a volute and the like, and meanwhile, the components can also form a conveying channel for liquid circulation, before the heating pump is started, the pump body and the water suction pipe are filled with water, after a motor is started, a shaft body in the pump drives the impeller and the water to rotate at a high speed, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and part of the water realizes internal circulation in the conveying channel.

In the prior art, the heating pump is used as a liquid circulation channel through the self-existing gaps of all the components inside, and the heating of the liquid is realized through an internal heating device; in addition, the shell and the base are in a split structure, and are connected again in a sealing mode such as clamping and the like during assembly.

The problems of the prior art are that the gap formed by the self-contained component is used as a liquid flow channel, so that the outlet for the liquid to flow through is limited, and the liquid flow path is short; meanwhile, the split type connection mode of the shell and the base is beneficial to assembly, but cannot bear higher motor rotating speed, and the safety protection performance is not only bottom, but also is not beneficial to reducing the size of the motor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a specifically be an impeller and heat pump and device for heat pump to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a stator for a heat pump comprises a base part and an integrally formed stator shell coaxially protruding from one side of the base part, wherein the stator shell is provided with an assembly chamber in which a rotor is coaxially arranged; the stator shell is provided with a base part and a first end, wherein the base part is arranged at one end of the stator shell, the first end is close to the base part, the other end of the stator shell is far away from the base part, and the first end extends to the second end to limit a first wall positioned at the outer side of the stator shell and a second wall positioned at the inner side of the stator shell; the surface of the first wall where the second end is located is provided with a through hole, and the through hole penetrates through the stator shell from the first wall to the second wall along the thickness direction.

And a plurality of through holes are uniformly distributed along the circumferential direction of the surface of the first wall where the second end is located.

The base portion is provided with a step portion adjacent to the outer edge portion of the second end on a side close to the second end, and the step portion extends along a step surface with a preset width in a direction perpendicular to the axial direction of the stator shell.

The outer edge part of the through hole has a preset distance from the step surface.

The axis of the through hole is perpendicular to the axis of the stator shell.

A heating pump comprises a shell, a rotor and a stator, wherein the rotor and the stator are installed in the shell, the rotor is provided with a shaft body, the stator comprises a base portion and a stator shell which coaxially protrudes and is arranged on one side of the base portion and is integrally formed, the stator shell is provided with an assembling chamber, the rotor is coaxially installed in the assembling chamber, one end of the stator shell close to the base portion is a second end, the other end far away from the base portion is a first end, and the first end extends to the second end to limit a first wall located on the outer side of the stator shell and a second wall located on the inner side of the stator shell; a through hole is formed in the surface of the first wall where the second end is located, and the through hole penetrates through the stator shell from the first wall to the second wall along the thickness direction; wherein a flow passage for fluid flow is formed between the inside of the housing and the first wall.

And a plurality of through holes are uniformly distributed on the surface of the first wall where the second end is located in the circumferential direction.

The axis of the through hole is perpendicular to the axis of the stator shell.

According to the technical scheme, the stator structure which integrates the stator shell and the base part is adopted, so that the assembly cost is reduced, the structural stability is improved, the safety protection performance of the pump can be effectively improved, and the size of the motor is reduced; meanwhile, one end of the stator shell is provided with a through hole which can provide a flow channel for liquid; and the through hole is arranged at one end close to the base part, so that the length of a flow path of the liquid in the heating pump is effectively increased, and the heat exchange efficiency of the heating pump is further improved.

Drawings

Fig. 1 shows a perspective view of a stator;

figure 2 shows a side cross-sectional view of a heat pump having a stator of the present invention.

In the figure: 100-stator, 110-base, 111-step, 1111-step, 120-stator housing, 1201-first end, 1202-second end, 121-first wall, 122-second wall, 123-through hole, 124-thread, 125-assembly chamber, 200-shaft, 210-rotor, 300-housing, 400-impeller, 500-flow channel.

Detailed Description

Fig. 1 shows a stator 100, which has a base portion 110 and a stator housing 120 coaxially disposed on one side of the base portion 110, the stator housing 120 has an assembly chamber 125, and a rotor 210 is coaxially mounted in the assembly chamber 125, where it can be understood by those skilled in the art that the base portion 110 is generally configured as a conical structure, a shaft body is fixedly disposed at a central portion of one end of the base portion 110, the stator housing 120 is coaxially and fixedly disposed at the other end of the base portion, the stator housing 120 is configured as a cylindrical structure, one end of the stator housing 120 close to the base portion 110 is a second end 1202, the other end far away from the second end 1202 is a first end 1201, the first end 1201 extends to the second end 1202 to define a first wall 121 located outside the stator housing 120 and define a second wall 122 located inside the stator housing 120, wherein a through hole 123 is opened on a surface of the first wall 121 where the second end 1202 is located, and the through hole 123 penetrates through a thickness of the stator housing 120 to extend to a surface where the second wall 122 is located.

Here, as will be understood by those skilled in the art, the through hole 123 is opened at the second end 1202 of the stator housing 120 to form a liquid flow path, so that the fluid outside the first wall 121 can flow into the inside of the second wall 122 through the through hole 123.

In order to ensure a more stable flow path for the liquid and ensure the flow rate of the liquid, in an embodiment, a plurality of through holes 123 are uniformly distributed in the circumferential direction of the surface of the first wall 121 where the second end 1202 is located, the number of the arranged through holes 123 is not limited to a specific number, in implementation, 6 or 8 through holes may be formed in the circumferential direction, so that the number of the through holes is effectively increased while the structural stability of the rear stator housing 120 itself is ensured, thereby ensuring the flow rate.

In another embodiment, the base portion 110 is formed with a step portion 111 adjacent to the outer edge portion of the second end 1202 at a side close to the second end 1202, the step portion 111 extends along an axis perpendicular to the stator housing 120 for a predetermined radial distance and is formed with a step surface 1111 perpendicular to the axis of the stator housing 120, the step surface 1111 is configured to ensure that the outer side portion of the stator housing 120 can reserve a flow inner diameter of a liquid flow passage defined by a radial width of the step surface 1111 after the outer casing 300 is mounted. Further, the outer edge of the through hole 123 has a predetermined distance from the step surface 1111 to ensure that the liquid passes through the through hole 123 to flow to the inner side of the second wall 122.

Referring to fig. 2, the present disclosure further provides a heat pump, including a housing 300, a rotor 210 and a stator 100 mounted in the housing 300, the rotor having a shaft 200, the stator 100 having a base portion 110 and a stator housing 120 coaxially disposed at one side of the base portion 110 and integrally formed, the stator housing 120 having a mounting chamber 125, the rotor 210 coaxially mounted in the mounting chamber 125, the stator housing 120 having a second end 1202 at an end close to the base portion 110, a first end 1201 at another end far from the second end 1202, the first end 1201 extending to the second end 1202 to define a first wall 121 located outside the stator housing 120 and a second wall 122 located inside the stator housing 120; a through hole 123 is formed in the surface of the first wall 121 where the second end 1202 is located, and the through hole 123 penetrates through the thickness of the stator housing 120 to extend to the surface where the second wall 122 is located; wherein a flow passage 500 for fluid flow is formed between the inside of the housing 300 and the first wall 121.

Here, as can be understood by those skilled in the art, the base portion 110 of the casing 300, which wraps the rotor 210, is located at one end of the casing 300, and the impeller 400 is installed at the inner side of the other end of the casing 300, the principle is that the liquid enters the flow channel 500 through the impeller 400, the liquid passing through the flow channel 500 enters the inner side of the second wall 122 through the through hole 123, and flows back to the impeller 400, so as to realize heating of the internal circulation, and since the through hole 123 is located at one side close to the step portion 111 and is adjacently opened, the flow path of the liquid in the flow channel 500 is effectively increased, thereby further improving the heat exchange efficiency inside the heating pump.

It should be noted that, in the present embodiment, the heating structure and the form of the heat pump are not limited, in other words, the liquid can be heated in the flow channel 500, the heating component can be a heating film located inside the housing 300, which is a conventional technical means in the field, and the heating principle is not clearly known by the skilled person according to the drawings, so the heating component is not specifically described in the present embodiment.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A stator for a heat pump, characterized by: the stator (100) comprises a base part (110) and a stator shell (120) which coaxially protrudes from one side of the base part (110) and is integrally formed, wherein the stator shell (120) is provided with an assembly chamber (125), and a rotor (210) is coaxially arranged in the assembly chamber (125);

the stator housing (120) is provided with a second end (1202) at one end close to the base part (110) and a first end (1201) at the other end far away from the base part (110), and the first end (1201) extends to the second end (1202) to define a first wall (121) positioned at the outer side of the stator housing (120) and a second wall (122) positioned at the inner side of the stator housing (120);

the surface of the first wall (121) where the second end (1202) is located is provided with a through hole (123), and the through hole (123) penetrates through the stator housing (120) from the first wall (121) to the second wall (122) along the thickness direction.

2. A stator for a heat pump according to claim 1, wherein: a plurality of through holes (123) are uniformly distributed along the circumferential direction of the surface of the first wall (121) where the second end (1202) is located.

3. A stator for a heat pump according to claim 1, wherein: the base part (110) is provided with a step part (111) adjacent to the outer edge part of the second end (1202) on one side close to the second end (1202), and the step part (111) extends to form a step surface (1111) with a preset width along the direction vertical to the axial line of the stator shell (120).

4. A stator for a heat pump according to claim 3, wherein: the outer edge part of the through hole (123) has a preset distance from the step surface (1111).

5. A stator for a heat pump according to claim 1 or 2, characterized in that: the axis of the through hole (123) is perpendicular to the axis of the stator housing (120).

6. A heat pump comprising a casing (300), a rotor (210) and a stator (100) mounted within the casing (300), the rotor (210) having a shaft body (200), characterized in that:

the stator (100) comprises a base part (110) and a stator shell (120) which coaxially protrudes from one side of the base part (110) and is integrally formed, wherein the stator shell (120) is provided with an assembly chamber (125), a rotor (210) is coaxially installed in the assembly chamber (125), one end of the stator shell (120) close to the base part (110) is a second end (1202), the other end of the stator shell far away from the base part (110) is a first end (1201), and the first end (1201) extends to the second end (1202) to define a first wall (121) located on the outer side of the stator shell (120) and a second wall (122) located on the inner side of the stator shell (120); a through hole (123) is formed in the surface of the first wall (121) where the second end (1202) is located, and the through hole (123) penetrates through the stator housing (120) from the first wall (121) to the second wall (122) along the thickness direction;

wherein a flow passage for fluid flow is formed between the inside of the housing (300) and the first wall (121).

7. A heat pump according to claim 6, wherein: a plurality of through holes (123) are uniformly distributed along the circumferential direction of the surface of the first wall (121) where the second end (1202) is located.

8. A heat pump according to claim 6, wherein: the base part (110) is provided with a step part (111) adjacent to the outer edge part of the second end (1202) on one side close to the second end (1202), and the step part (111) extends to form a step surface (1111) with a preset width along the direction vertical to the axial line of the stator shell (120).

9. A heat pump according to claim 8, wherein: the outer edge part of the through hole (123) has a preset distance from the step surface (1111).

10. A heat pump according to claim 6 or 7, wherein: the axis of the through hole (123) is perpendicular to the axis of the stator housing (120).