Motor for pump and pump casing structure connected to the motor
By designing the housing structure and pump housing structure that separates the stator and rotor in the induction motor, the problems of high temperature and water accumulation in pump applications are solved, and effective heat dissipation and system simplification are achieved.
Patent Information
- Application Number
- CN202421316901.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-11
AI Technical Summary
In pump applications, traditional induction motors are prone to high temperatures due to fluid resistance, resulting in damage to the rotor and shaft. At the same time, there may be problems such as water accumulation inside the motor and causing damage.
An induction motor containing a container is designed, which separates the stator and the rotor, allowing heat dissipation fluid to enter the inner chamber of the container to cover the rotor for heat dissipation. At the same time, the water pumped in the pump is directly used to dissipate heat through the pump structure to prevent the fluid volume of water from entering the stator position.
Effective heat dissipation, prevents excessive temperature damage to motor components, while avoiding damage to fluid volume water, simplifies the heat dissipation system and reduces the overall weight and volume of the pump.
Smart Images
Figure CN222706369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a motor, in particular to an induction motor which can be used for a pump. Background Art
[0002] A motor is a very common drive device that converts energy such as electricity into mechanical energy and outputs it for use. Motors that use electricity are called electric motors, also called electric motors. Traditionally, an electric motor includes a stator and a rotor, with a variable magnetic field and a fixed magnetic field respectively set on the stator and the rotor. By changing the magnetic poles of the variable magnetic field by electric current, the rotor can be driven to rotate. An induction motor is also a type of electric motor, in which the variable magnetic field is set on the stator and the fixed magnetic field is set on the rotor.
[0003] Induction motors used in pumps must overcome fluid resistance, so the stator and rotor tend to generate a lot of heat during operation. Generally speaking, induction motors use a sleeve-shaped stator to surround the rotor, so the heat energy of the rotor is difficult to dissipate, which can easily cause excessive temperatures over time, resulting in damage to the rotor or output shaft. In addition, pumps used for fluids will inevitably accumulate water inside the motor, which may also cause damage to the motor.
[0004] Therefore, it is necessary to improve the motor used in the pump. Utility Model Content
[0005] The main purpose of the utility model is to provide a motor for use in a pump, in particular an induction motor, which can allow its rotor to be covered by a heat dissipation fluid to dissipate heat and also help the stator dissipate heat without affecting the operation of the stator.
[0006] In order to achieve the above-mentioned object, the motor for use in the pump proposed in the utility model has:
[0007] A container, which surrounds and forms an inner chamber, the container has an axial direction and has a first end and a second end opposite to each other in the axial direction, the first end has an open end and the second end is closed;
[0008] A stator is disposed around the outer peripheral surface of the housing along the circumferential direction of the housing;
[0009] A rotor is disposed in the housing; the rotor comprises:
[0010] a rotating shaft, one end of which is rotatably disposed on the housing and the other end of which extends along the axial direction of the housing; and
[0011] an induction part having magnetism, the induction part being disposed around the rotating shaft; and
[0012] An outer shell is surrounded to form an outer chamber, and the container, the stator and the rotor are arranged in the outer chamber, and the outer chamber and the inner chamber are not communicated with each other.
[0013] To achieve the above-mentioned object, the utility model provides a pump casing structure, which can be connected to the motor used for the pump as described above, and the pump casing structure comprises:
[0014] A setting plate having:
[0015] a setting surface, the first end of the container is sealed and connected to the setting surface; and
[0016] At least one through hole is formed through the setting plate, and the at least one through hole is communicated with the inner chamber through the end opening of the first end.
[0017] Therefore, the advantage of the motor for pump use of the utility model is that the stator and the rotor are separated by the housing, so that the heat dissipation fluid can flow into the inner chamber of the housing, thereby covering the rotor to take away the heat, and the fluid will not enter the position where the stator is located, so it will not affect the operation of the stator, so it can effectively dissipate heat. When the utility model is not in use, the fluid can leave the inner chamber through the end opening without accumulation.
[0018] In addition, the advantage of the pump casing structure proposed in the utility model is that, with the pump casing structure of the utility model, the water pumped into the pump can be directly utilized to pass through the through holes of the setting plate and directly enter the inner chamber to remove heat. There is no need to set up an additional working fluid source, which can reduce the overall weight and volume of the pump.
[0019] A motor for use with a pump as described above, wherein the sensing portion further includes a setting sleeve, which is set on the rotating shaft and extends along the length direction of the rotating shaft; at least one magnetic component, which is set on the outer circumferential surface of the setting sleeve along the circumferential direction of the setting sleeve; and a covering shell, which is connected to the setting sleeve and seals the at least one magnetic component, and there is a gap between the covering shell and the inner circumferential surface of the container shell.
[0020] In the motor for use with a pump as described above, the material of the setting sleeve includes stainless steel; and the material of the covering shell includes stainless steel.
[0021] A motor for use with a pump as described above, wherein the outer shell further has a side opening, which is formed through the outer shell and connected to the outer chamber; and a circuit box, which is connected to the outer peripheral surface of the outer shell and is located at the position of the side opening, and the circuit box has an internal space, which is connected to the side opening.
[0022] As described above, the motor for use with a pump, wherein the housing further has a bearing portion located in the inner chamber, the bearing portion is formed at the second end portion and protrudes toward the first end portion, and one end of the rotating shaft is rotatably disposed on the bearing portion.
[0023] In the motor for use with a pump as described above, the material of the housing includes stainless steel.
[0024] The motor for use in a pump as described above further comprises a working fluid located in the inner chamber and covering the rotor, and the working fluid can enter and exit the housing through the end opening of the first end.
[0025] As mentioned above, in the pump casing structure, the outer casing is sealed and connected to the setting plate, thereby forming a closed space between the outer casing, the container shell, and the setting plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model.
[0027] Figure 2 It is a three-dimensional exploded schematic diagram of the utility model.
[0028] Figure 3 It is a top schematic diagram of the utility model.
[0029] Figure 4 yes Figure 3 Schematic diagram of the cross-section along the AA cutting line.
[0030] Figure 5 yes Figure 4 A partially enlarged view of the stator shows a gap between the stator and the casing.
[0031] Figure 6 It is a side sectional schematic diagram of the utility model. DETAILED DESCRIPTION
[0032] First, please refer to Figure 1 to Figure 2 The utility model provides a motor for a pump, which has a housing 10, a stator 20, a rotor 30, and an outer housing 40.
[0033] Please refer to Figures 3 to 6 The container 10 surrounds and forms an inner chamber 11. The container 10 has an axial direction A1, and has a first end 12 and a second end 13 opposite to each other in the axial direction A1. The container 10 in this embodiment is substantially cylindrical, but not limited thereto. The first end 12 has an end opening 121, and the second end 13 is closed. In this embodiment, the material of the container 10 includes stainless steel, but not limited thereto.
[0034] The housing 10 has a bearing portion 14, which is located in the inner chamber 11, formed at the second end portion 13 and protruding toward the first end portion 12. The bearing portion 14 in this embodiment is a ring wall structure, one end of the bearing portion 14 is connected to the second end portion 13, and the other end extends toward the first end portion 12, but the form of the bearing portion 14 is not limited thereto, and the housing 10 may also not have the bearing portion 14.
[0035] The stator 20 is disposed on the outer peripheral surface of the casing 10 along the circumferential direction of the casing 10. The stator 20 in this embodiment is a plurality of coils disposed on the outer peripheral surface of the casing 10. However, the form of the stator 20 can be adjusted according to needs, as long as it is disposed outside the outer peripheral surface of the casing 10, and it may not contact the casing 10.
[0036] The rotor 30 is rotatably disposed in the housing 10, and there is a gap between the rotor 30 and the inner circumference of the housing 10. Specifically, the rotor 30 includes a rotating shaft 31 and a sensing portion 32. The rotating shaft 31 extends along the axial direction A1 of the housing 10, and one end of the rotating shaft 31 is rotatably disposed on the bearing portion 14 of the housing 10, and the bearing portion 14 is used to support the rotation of the rotor 30, and the other end passes through the end opening 121 of the first end portion 12. The sensing portion 32 is magnetic, and the sensing portion 32 is disposed around the rotating shaft 31. Specifically, the sensing portion 32 is sleeved on the rotating shaft 31 and is located in the inner chamber 11, and there is a gap between the rotor 30 and the inner circumference of the housing 10, so that it can be driven by the stator 20 and then drive the rotating shaft 31 to rotate.
[0037] The sensing part 32 includes a setting sleeve 321, at least one magnetic member 322, and a covering shell 323. The setting sleeve 321 is sleeved on the rotating shaft 31 and extends along the length direction of the rotating shaft 31. In this embodiment, the material of the setting sleeve 321 and the covering shell 323 includes stainless steel, and the number of the magnetic members 322 is multiple, but not limited to this. The magnetic members 322 are arranged on the outer circumference of the setting sleeve 321 along the circumferential direction of the setting sleeve 321. The magnetic members 322 can be permanent magnets, and each magnetic member 322 is attached to the outer circumference of the setting sleeve 321 in accordance with the shape of the setting sleeve 321. The covering shell 323 covers the setting sleeve 321 and seals the magnetic members 322, whereby the covering shell 323 can isolate the magnetic members 322 from the inner chamber 11. There is a gap between the covering shell 323 and the inner circumference of the container 10.
[0038] The outer shell 40 surrounds and forms an outer chamber 41, and the container 10, the stator 20, and the rotor 30 are arranged in the outer chamber 41. The outer chamber 41 and the inner chamber 11 are not connected to each other, so that the stator 20 and the rotor 30 are separated into different spaces. In this embodiment, the outer chamber 41 and the inner chamber 11 are isolated by sealing the outer shell 40 and the container 10 to a pump shell structure, but it is not limited to this. For example, the outer shell 40 can also surround and seal the outer circumference of the container 10, or only the end opening 121 of the container 10 is sealed to the opening of a water tank (not shown in the figure), which can achieve the effect of completely separating the outer chamber 41 and the inner chamber 11.
[0039] In this embodiment, the outer shell 40 further has a side opening 42 and a circuit box 43. The side opening 42 is formed through the outer shell 40 and communicates with the outer chamber 41; the circuit box 43 is connected to the outer peripheral surface of the outer shell 40 and is located at the position of the side opening 42, and the circuit box 43 has an internal space 431, and the internal space 431 and the side opening 42 are communicated with each other. The circuit box 43 is used to set a control circuit (not shown in the figure), and the user can set the control circuit in the internal space 431, and the control circuit enters the outer chamber 41 through the side opening 42 and is connected with the stator 20, but it is not limited to this. The outer shell 40 may not have the side opening 42 and the circuit box 43, and the control circuit may also be directly set in the outer chamber 41.
[0040] This embodiment may further include a working fluid 50, which is located in the inner chamber 11 and covers the rotor 30. The working fluid 50 can enter and exit the housing 10 through the end opening 121 of the first end 12, so that the working fluid 50 takes away the heat generated by the operation of the rotor 30, thereby improving the heat dissipation efficiency. For example, the working fluid 50 can be liquid water, but it can also be other liquids, or it can also be flowing air.
[0041] The first end 12 of the housing 10 can be connected to a working fluid source (not shown in the figure). For example, the first end 12 can be sealed and connected to a water tank, so that the water in the water tank flows into the inner chamber 11. Therefore, the utility model can allow the working fluid 50 to enter the interior of the housing 10 through the end opening 121 of the first end 12 of the housing 10, and then cover the rotor 30 to take away the generated heat. At the same time, the working fluid 50 will not enter the outer chamber 41, and will not affect the operation of the stator 20. In addition, the sensing part 32 of the rotor 30 of the utility model seals the magnetic part 322 with the covering shell 323, which can prevent the magnetic part 322 from contacting the working fluid 50. The covering shell 323, the housing 10, and the sleeve 321 can also be made of stainless steel material to reduce the possibility of rust or damage. Therefore, the rotor 30 of the utility model can be immersed in water, and the water assists its heat dissipation.
[0042] Please refer to Figure 6The present invention proposes a pump casing structure, which can be interconnected with the motor used for the pump of the present invention. The pump casing structure includes a setting plate 60, the setting plate 60 has a setting surface 61, and the first end 12 of the container 10 is sealed and connected to the setting surface 61. The setting plate 60 has at least one through hole 62, which is formed through the setting plate 60, and the through hole 62 is connected to the inner chamber 11 through the end opening 121 of the first end 12. The present invention can also seal the outer shell 40 to the setting plate 60, thereby forming a closed space between the outer shell 40, the container 10, and the setting plate 60.
[0043] Since the rotor 30 of the utility model can be immersed in water, and the stator 20 is arranged in the closed space formed by the outer shell 40, the container 10, and the setting plate 60, in combination with the pump shell structure of the utility model, when the pump is operated and water (or other fluids) are pumped in, the water can enter the inner chamber 11 through the through hole 62 of the setting plate 60, and take away the heat generated by the rotor 30, without having to connect a working fluid or a heat dissipation module for heat dissipation, which can achieve the beneficial effect of reducing the overall volume of the pump.
[0044] In summary, the rotor 30 of the motor for use in the pump of the utility model can be immersed in liquid, and the stator 20 and the rotor 30 are separated by the housing 10, so that the heat dissipation fluid can flow into the inner chamber 11 of the housing 10, and then cover the rotor 30 to take away the heat, and the fluid will not enter the position where the stator 20 is located, so it will not affect the operation of the stator 20, and can effectively dissipate heat for the stator 20 and the rotor 30. In addition, since the first end 12 of the housing 10 has an end opening 121, when the utility model is not in use, water or other fluids can leave the inner chamber 11 through the end opening 121, and will not accumulate in the inner chamber 11.
[0045] In addition, with the pump housing structure of the present invention, the motor used for the pump of the present invention is connected to the setting plate 60, and the water or other fluid pumped by the pump can be directly used to pass through the through hole 62 of the setting plate 60 and directly enter the inner chamber 11 to remove the heat generated by the rotor 30. In this way, there is no need to set up an additional working fluid source or heat dissipation module, which can reduce the overall weight and volume of the pump and reduce the manufacturing cost.
[0046] The above description is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A motor for a pump, characterized in that: have: A container, which surrounds and forms an inner chamber, the container has an axial direction and has a first end and a second end opposite to each other in the axial direction, the first end has an open end and the second end is closed; A stator is disposed around the outer peripheral surface of the housing along the circumferential direction of the housing; A rotor is disposed in the housing; the rotor comprises: a rotating shaft, one end of which is rotatably disposed on the housing and the other end of which extends along the axial direction of the housing; and an induction part having magnetism, the induction part being disposed around the rotating shaft; and An outer shell is surrounded to form an outer chamber, and the container, the stator and the rotor are arranged in the outer chamber, and the outer chamber and the inner chamber are not communicated with each other.
2. A motor for a pump as claimed in claim 1, characterized in that The sensing unit further comprises: A setting sleeve, which is sleeved on the rotating shaft and extends along the length direction of the rotating shaft; At least one magnetic member, the at least one magnetic member is disposed on the outer peripheral surface of the setting sleeve along the circumferential direction of the setting sleeve; and A covering shell is connected to the setting sleeve and seals and covers the at least one magnetic component. There is a gap between the covering shell and the inner peripheral surface of the container.
3. A motor for a pump as claimed in claim 2, characterized in that The material of the setting sleeve includes stainless steel; and The material of the covering shell includes stainless steel.
4. A motor for a pump according to any one of claims 1 to 3, characterized in that The outer shell further has: A side opening is formed through the outer shell and communicated with the outer chamber; and A circuit box is connected to the outer peripheral surface of the outer shell and is located at the position of the side opening. The circuit box has an inner space, and the inner space is communicated with the side opening.
5. A motor for a pump as claimed in any one of claims 1 to 3, characterized in that: The container further has: A bearing portion is located in the inner chamber. The bearing portion is formed at the second end portion and protrudes toward the first end portion. One end of the rotating shaft is rotatably disposed on the bearing portion.
6. A motor for a pump as claimed in any one of claims 1 to 3, characterized in that The material of the container includes stainless steel.
7. A motor for a pump as claimed in any one of claims 1 to 3, characterized in that Further including: A working fluid is located in the inner chamber and covers the rotor. The working fluid can enter and exit the housing through the end opening of the first end.
8. A pump casing structure, characterized in that: A pump housing structure capable of being connected to a motor for use with a pump as claimed in any one of claims 1 to 7, the pump housing structure comprising: A setting plate having: a setting surface, the first end of the container is sealed and connected to the setting surface; and At least one through hole is formed through the setting plate, and the at least one through hole is communicated with the inner chamber through the end opening of the first end.
9. The pump casing structure according to claim 8, characterized in that: The outer shell is sealed and connected to the setting plate, thereby forming a closed space among the outer shell, the container shell and the setting plate.