CN219691763U

CN219691763U - Pump with a pump body

Info

Publication number: CN219691763U
Application number: CN202222455186.2U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Sanhua Aweco Appliance Systems Wuhu Co Ltd
Current assignee: Sanhua Aweco Appliance Systems Wuhu Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-09-15
Anticipated expiration: 2032-09-16

Abstract

The utility model provides a pump, which comprises a shell component, a stator component and a rotor component, wherein the rotor component comprises a blade, a supporting piece and a magnetic piece, the supporting piece is provided with a first channel which penetrates through the blade along the axial direction, the blade is at least partially positioned in the first channel, the magnetic piece is fixed or limited on the outer wall part of the supporting piece or is integrated with the supporting piece, the shell component is provided with an inlet channel and an outlet channel, the inlet channel, the first channel and the outlet channel are communicated, the shell component comprises a concave part, the concave part extends along the circumferential direction of the shell component, the concave part is recessed in a wall part corresponding to the inlet channel of the shell component and/or is recessed in a wall part corresponding to the outlet channel of the shell component, and the concave part is provided with a containing cavity, and the rotor component is rotatably limited in the containing cavity. When the pump is in operation, the flow resistance is reduced.

Description

Pump with a pump body

Technical Field

The utility model relates to the technical field of fluid delivery, in particular to a pump.

Background

An existing pump (see fig. 1, 2 and 3) comprising: the housing assembly 1', the stator assembly 2' and the rotor assembly 3', the housing assembly 1' is provided with a water inlet 111 'and a water outlet 131', the rotor assembly 3 'comprises a cylindrical rotor body 31' and blades 32', a plurality of blades 32' are annularly arranged on the inner wall of the rotor body 31', and the rotor assembly 3' can rotate relative to the stator assembly 2 'after being electrified so that the blades 32' drive liquid to be conveyed from the water inlet 111 'to the water outlet 131'.

Both ends of the rotor body 31' are provided with a connecting shaft 311' and a first cantilever 312', the connecting shaft 311' is fixed on the first cantilever 312', a first connecting portion 112' and a plurality of second cantilevers 113' are respectively arranged in the first housing 11' and the second housing 13', the first connecting portion 112' is fixed on the second cantilever 113', and the connecting shaft 311' is rotatably connected with the first connecting portion 112' through a bearing. In operation of the pump, the connecting shaft 311', the first cantilever 312', the first connecting portion 112 'and the second cantilever 113' may obstruct fluid flow, and have a large flow resistance.

Disclosure of Invention

In order to reduce the flow resistance of the pump during operation, the following technical scheme is provided: including casing subassembly, stator module and rotor subassembly, the rotor subassembly includes blade, support piece and magnetic part, the support piece has the first passageway that link up along the axial, the blade is located at least partially first passageway, the magnetic part is fixed or limited in the outer wall portion of support piece or the magnetic part with support piece is an organic whole piece, the casing subassembly has entry passageway and exit channel, entry passageway first passageway with exit channel intercommunication, the casing subassembly includes the depressed part, the depressed part is followed the circumference extension of casing subassembly, the depressed part is sunken in the wall portion that the entry passageway corresponds of casing subassembly and/or the depressed part is sunken in the wall portion that the exit channel corresponds of casing subassembly, the depressed part has the accommodation chamber, the rotatable limit of rotor subassembly is located the accommodation chamber.

Such pump, the casing subassembly includes the depressed part, and the depressed part extends along the circumference of casing subassembly, and the depressed part is sunken in the wall portion that the entry passageway of casing subassembly corresponds and/or the depressed part is sunken in the wall portion that the exit passageway of casing subassembly corresponds, and the depressed part has the accommodation chamber, and rotor subassembly rotatable spacing is in the accommodation chamber. When the pump is in operation, the flow resistance is reduced.

Drawings

FIG. 1 is a cross-sectional view of a prior art pump;

FIG. 2 is a schematic view of a prior art rotor assembly;

FIG. 3 is a schematic view of a first prior art housing;

FIG. 4 is a perspective view of one embodiment of a pump of the present utility model;

FIG. 5 is a cross-sectional view of one embodiment of a pump of the present utility model;

fig. 6 is a cross-sectional view of another embodiment of the pump of the present utility model.

Reference numerals:

the first housing 11, the first housing main body portion 111, the first portion 112, the second portion 113, the second housing 12, the second housing main body portion 121, the third portion 122, the fourth portion 123, the inlet passage 13, the outlet passage 14,

the stator assembly 2 is provided with a plurality of stator elements,

the vane 31, the body portion 321, the first convex portion 322, the second convex portion 323, the first passage 324, the magnetic member 33, the first bearing 34, the second bearing 35, the third bearing 36, the shaft 37,

and a seal 4.

Detailed Description

The technical scheme of the specific embodiment is described below with reference to the accompanying drawings.

It should be noted that: although the present utility model has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that the present utility model may be modified, combined or equivalent thereto, and all modifications and improvements thereto without departing from the spirit and scope of the present utility model are intended to be included in the scope of the appended claims.

Referring to fig. 4 and 5, a pump includes a housing assembly, a stator assembly 2 and a rotor assembly, the stator assembly 2 is located at an outer wall portion of the housing assembly, the rotor assembly includes a vane 31, a support member and a magnetic member 33, the support member has a first passage 324 penetrating axially therethrough, the vane 31 is located at least partially in the first passage 324, the magnetic member 33 is fixed or limited at the outer wall portion of the support member or the magnetic member 33 and the support member are integrally formed (for example, integrally injection-molded), the housing assembly has a receiving cavity, and the rotor assembly is located in the receiving cavity.

Referring to fig. 5, the housing assembly has an inlet channel 13 and an outlet channel 14, the inlet channel 13, the first channel 324 and the outlet channel 14 are communicated, the housing assembly includes a recess portion extending along a circumferential direction of the housing assembly, the recess portion is recessed in a wall portion corresponding to the inlet channel 23 of the housing assembly and/or the recess portion is recessed in a wall portion corresponding to the outlet channel 14 of the housing assembly, the recess portion has a receiving cavity, and the rotor assembly is rotatably limited in the receiving cavity.

Such a pump, the housing assembly comprises a recess extending in the circumferential direction of the housing assembly, the recess being recessed in a wall corresponding to the inlet channel 13 of the housing assembly and/or in the outlet channel 14 of the housing assembly, the recess having a receiving cavity, the rotor assembly being rotatably limited in the receiving cavity. When the pump is in operation, the flow resistance is reduced.

Referring to fig. 4 and 5, the case assembly includes a first case 11 and a second case 12, the first case 11 includes a first case main body part 111 and a first part 112, the first part 112 protrudes from an end of the first case main body part 111 near the support in a radial direction of the first case main body part 111, the second case 12 includes a second case main body part 121 and a third part 122, the third part 122 protrudes from an end of the second case main body part 121 near the support in a radial direction of the second case main body part 121, and one end of the support is rotatably limited between the first part 112 and the third part 122.

Referring to fig. 5, the first housing 11 includes a second portion 113, and in the axial direction of the first housing main body portion 111, the second portion 113 extends from an end of the first portion 112 away from the first housing main body portion 111, the stator assembly 2 is sleeved on the second portion 113, and the stator assembly 2 is tightly fitted with the second portion 113, so that installation is facilitated.

The second housing 12 includes a fourth portion 123, the fourth portion 123 extends from an end of the third portion 122 away from the second housing body 121 in an axial direction of the second housing body 121, the second portion 113 abuts against the fourth portion 123, the rotor assembly is rotatably limited to the second portion 113, and the rotor assembly is rotatably limited to the fourth portion 123.

The second portion 113 is surrounded by the first bearing 34, the first bearing 34 may rotate on the inner wall of the second portion 113, and the support member may move in a radial direction during operation of the pump, so that sliding friction is generated between the first bearing 34 and the second portion 113.

Referring to fig. 5, the support includes a main body 321 and a first protrusion 322, the first protrusion 322 protrudes from an outer wall of the main body 321, the pump includes a first bearing 34, the first bearing 34 is a sliding bearing, the first bearing 34 is in interference fit with the main body 321, the first bearing 34 abuts against the first protrusion 322, the first bearing 34 is at least partially opposite to the first portion 112 in an axial direction of the support, and the first bearing 34 is located between the first protrusion 322 and the first portion 112.

Of course, the first bearing 34 may be integrated with the main body 321, and the first bearing 34 is integrally injection molded with the main body 321 by using the first bearing 34 as an insert, and a portion of the first bearing 34 is located outside the main body 321, and the first bearing 34 and the housing assembly slide and rub during pump operation, which is not described herein.

The cross section of the first bearing 34 is square, so as to increase the contact area between the main body 321 and the housing assembly, however, the cross section of the first bearing 34 may be other shapes, which will not be described herein.

Referring to fig. 5, the support member includes a second protrusion 323, the second protrusion 323 protrudes from an outer wall portion of the main body 321, the rotor assembly includes a second bearing 35, the second bearing 35 is a sliding bearing, the second bearing 35 is in interference fit with the main body 321, the second bearing 35 abuts against the second protrusion 323, the magnetic member 33 is sleeved and fixed on the main body 321, the first protrusion 322 is located between the first bearing 34 and the magnetic member 33, and the second protrusion 323 is located between the second bearing 35 and the magnetic member 33.

Of course, the second bearing 35 may be integrally injection molded with the main body 321, and a portion of the second bearing 35 is located outside the main body 321, and the second bearing 35 and the housing assembly slide and rub during pump operation, which is not described herein.

The cross section of the second bearing 35 is square, so that the contact area between the main body 321 and the housing assembly is increased, however, the cross section of the second bearing 35 may be other shapes, which will not be described here.

Referring to fig. 5, since the first protrusion 322 and the second protrusion 323 are provided, the magnetic member 33 is positioned between the first protrusion 322 and the second protrusion 323, thereby improving structural stability, being compact, the magnetic member 33 may be clamped between the first protrusion 322 and the second protrusion 323, or the magnetic member 33 may be fixed to the support member by other means, and of course, the magnetic member 33 may also be fixed to the support member by injection molding.

Referring to fig. 5, the first bearing 34 and the second bearing 35 are identical, a plane perpendicular to the axis of the support is defined as a first plane, the projected outer ring of the first protrusion 322 on the first plane is located in the projected outer ring of the first bearing 34 on the first plane, the projected outer ring of the second protrusion 323 on the first plane is located in the projected outer ring of the second bearing 35 on the first plane, and the projected outer ring of the magnetic member 33 on the first plane, the projected outer ring of the first protrusion 322 on the first plane, and the projected outer ring of the second protrusion 323 on the first plane are overlapped.

Of course, the first bearing 34 and the second bearing 35 may not be provided, and the support member directly generates sliding friction with the first portion 112 and the second portion 113, and the support member directly generates sliding friction with the third portion 122 and the fourth portion 123, for example, the support member is made of a wear-resistant material, which will not be described herein.

Referring to fig. 5, the fourth portion 123 is provided around the second bearing 35, and the support member may move in a radial direction thereof during operation of the pump, so that sliding friction is generated between the second bearing 35 and the fourth portion 123.

The first portion 112, the second portion 113, the third portion 122, and the fourth portion 123 form a recess, which is not described herein.

Referring to fig. 5, the first housing 11 includes a first clamping portion, the first clamping portion is located at an end portion, far away from the first portion 112, of the second portion 113, the second housing 12 includes a second clamping portion, the second clamping portion is located at an end portion, far away from the third portion 122, of the fourth portion 123, and the first clamping portion is matched with the second clamping portion, so that the first housing 11 is fixed with the second housing 12, the pump further includes a sealing element 4, the sealing element 4 is abutted with the first clamping portion, and the sealing element 4 is abutted with the second clamping portion, so that assembly is facilitated.

Referring to fig. 5, the number of the blades 31 is a plurality, for example, the number of the blades 31 is 4, the rotor assembly further includes a shaft 37, a center line of the shaft 37 coincides with a center line of the support member, the plurality of blades 31 are uniformly arranged along an axial direction of the shaft 37, an end portion of the blades 31 far away from the shaft 37 is fixed or in limited connection with an inner wall portion of the support member, and when the pump works, the high-speed rotation of the blades 31 generates a thrust force, so that fluid such as water flows from the second housing 12 to the first housing 11, and details are omitted herein.

The blade 31 and the supporting member are integrally formed, for example, may be integrally injection molded, and of course, the blade 31 and the supporting member may be fixed by bolts or the like, which will not be described herein.

Referring to fig. 5, the diameter of the first passage 324 is substantially the same as the diameter of the inlet passage 13, the diameter of the first passage 324 is substantially the same as the diameter of the outlet passage 14, the axis of the inlet passage 13 is substantially coincident with the axis of the first passage 324, and the axis of the first passage 324 is substantially coincident with the axis of the outlet passage 14.

Referring to fig. 6, the pump further includes a third bearing 36, the third bearing 36 being a rolling bearing, an inner ring of the third bearing 36 being interference fit with the body portion 321, and an outer ring of the third bearing 36 being interference fit with the second portion 113.

Referring to fig. 6, in the axial direction of the support, the third bearing 36 is at least partially opposite the first projection 322, and the third bearing 36 is at least partially opposite the first portion 112, improving the stability of the pump during operation.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. Pump comprising a housing assembly, a stator assembly (2) and a rotor assembly, characterized in that the rotor assembly comprises a vane (31), a support and a magnetic member (33), the support has a first channel (324) running through in an axial direction, the vane (31) is at least partially located in the first channel (324), the magnetic member (33) is fixed or limited to an outer wall portion of the support or the magnetic member (33) is integrated with the support, the housing assembly has an inlet channel (13) and an outlet channel (14), the inlet channel (13), the first channel (324) and the outlet channel (14) are communicated, the housing assembly comprises a recess, the recess extends in a circumferential direction of the housing assembly, the recess is recessed in a wall portion corresponding to the inlet channel (13) of the housing assembly and/or a wall portion corresponding to the outlet channel (14) of the housing assembly, the recess has a containing cavity, and the rotor assembly is rotatably contained in the containing cavity.

2. The pump according to claim 1, wherein the housing assembly comprises a first housing (11) and a second housing (12), the first housing (11) comprising a first housing body portion (111) and a first portion (112), the first portion (112) protruding from an end of the first housing body portion (111) near the support in a radial direction of the first housing body portion (111), the second housing (12) comprising a second housing body portion (121) and a third portion (122), the third portion (122) protruding from an end of the second housing body portion (121) near the support in a radial direction of the second housing body portion (121), the support being rotatably confined between the first portion (112) and the third portion (122).

3. The pump according to claim 2, wherein the first housing (11) comprises a second portion (113), in an axial direction of the first housing main body portion (111), the second portion (113) extends from an end of the first portion (112) remote from the first housing main body portion (111), the second housing (12) comprises a fourth portion (123), in an axial direction of the second housing main body portion (121), the fourth portion (123) extends from an end of the third portion (122) remote from the second housing main body portion (121), the second portion (113) and the fourth portion (123) abut, the rotor assembly is rotatably limited to the second portion (113), and the rotor assembly is rotatably limited to the fourth portion (123).

4. A pump according to claim 3, wherein the support comprises a body portion (321); the pump further comprises a first bearing (34), the first bearing (34) is a sliding bearing, the first bearing (34) is in interference fit with the main body part (321) or the first bearing (34) and the main body part (321) are integrated, and the first bearing (34) is at least partially opposite to the first part (112) in the axial direction of the supporting piece;

or, the pump further comprises a third bearing (36), the third bearing (36) is a rolling bearing, an inner ring of the third bearing (36) is in interference fit with the main body part (321), and an outer ring of the third bearing (36) is in interference fit with the second part (113).

5. The pump according to claim 4, wherein the support comprises a first protrusion (322), the first protrusion (322) protruding from an outer wall portion of the body portion (321);

the first bearing (34) is abutted against the first convex part (322), and the first bearing (34) is positioned between the first convex part (322) and the first part (112);

alternatively, in the axial direction of the support, the third bearing (36) is at least partially opposed to the first convex portion (322), and the third bearing (36) is at least partially opposed to the first portion (112).

6. The pump according to claim 5, wherein the support member comprises a second protrusion (323), the second protrusion (323) protruding from an outer wall portion of the main body portion (321), the magnetic member (33) being fixed between the first protrusion (322) and the second protrusion (323), the stator assembly (2) being fixed to the first portion (112).

7. A pump according to any of claims 1-6, characterized in that the vane (31) is fixedly or limitedly connected to the inner wall of the support or that the vane (31) is in one piece with the support.

8. Pump according to claim 7, wherein the number of vanes (31) is a plurality, the rotor assembly further comprising a shaft (37), the centre line of the shaft (37) coinciding with the centre line of the support, a plurality of the vanes (31) being arranged in the axial direction of the shaft (37).

9. The pump of any of claims 1-6, wherein the diameter of the first channel (324) is substantially the same as the diameter of the inlet channel (13), the diameter of the first channel (324) is substantially the same as the diameter of the outlet channel (14), the axis of the inlet channel (13) is substantially coincident with the axis of the first channel (324), and the axis of the first channel (324) is substantially coincident with the axis of the outlet channel (14).

10. A pump according to claim 3, wherein the first housing (11) comprises a first clamping portion located at an end of the second portion (113) remote from the first portion (112), the second housing (12) comprises a second clamping portion located at an end of the fourth portion (123) remote from the third portion (122), the first clamping portion and the second clamping portion cooperate such that the first housing (11) is fixed to the second housing (12), the pump further comprising a seal (4), the seal (4) being in abutment with the first clamping portion, the seal (4) being in abutment with the second clamping portion.