WO2022127157A1 - Permanent magnet direct current variable frequency electric pump - Google Patents
Permanent magnet direct current variable frequency electric pump Download PDFInfo
- Publication number
- WO2022127157A1 WO2022127157A1 PCT/CN2021/112945 CN2021112945W WO2022127157A1 WO 2022127157 A1 WO2022127157 A1 WO 2022127157A1 CN 2021112945 W CN2021112945 W CN 2021112945W WO 2022127157 A1 WO2022127157 A1 WO 2022127157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- pump body
- permanent magnet
- variable frequency
- frequency electric
- Prior art date
Links
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0686—Mechanical details of the pump control unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
Definitions
- the invention belongs to the technical field of pumps, and relates to a pump, in particular to a permanent magnet direct current variable frequency electric pump.
- a common electric pump includes a pump body with a built-in impeller and a motor that drives the impeller to work.
- the pump body is provided with a water outlet and a water inlet.
- water enters the pump body from the water inlet, and is accelerated by the impeller and ejected from the water outlet.
- the structure of the electric pump needs to be improved.
- the common way is to replace the asynchronous motor with a permanent magnet motor with a frequency converter.
- the inverter includes a circuit board and a rectifier bridge, IPM module, chip, capacitor, etc. installed on the circuit board.
- the rectifier bridge and IPM module have high heat dissipation requirements. If the inverter is installed in a closed, narrow shell , the heat generated by its work is not easy to dissipate, and the excessive heat will damage the electronic devices, thereby affecting the use of the electric pump.
- the structure of the existing variable frequency electric pump is relatively complicated, which is disadvantageous for reducing the volume, simplifying the structure, and inconvenient for maintenance and assembly.
- the control boards in the variable frequency electric pump are the main control board and the auxiliary control board, and the main control board controls the operation of the motor, while the The auxiliary control board controls the external indicator of the pump to display the operation of the pump body, and the structure is relatively complex.
- the purpose of the present invention is to provide a permanent magnet DC variable frequency electric pump in view of the above problems existing in the prior art.
- a permanent magnet DC variable frequency electric pump comprising a pump body and a pump cover, characterized in that the inside of the pump body and the pump cover is provided with a cavity, and the pump The cover is arranged on the pump body, the impeller assembly is installed in the pump body, the motor that drives the impeller assembly to work and has a rotor inside is installed in the pump body, and the control board that controls the operation of the motor is installed in the pump cover , the rotor in the motor is provided with a protective layer outside, and the protective layer is made of stainless steel.
- the pump cover is fixed and limited to the pump body by bolts.
- control board in the permanent magnet DC variable frequency electric pump is single, which can control the operation of the motor in the pump at the same time, and the structure becomes more concise, and the rotor in the motor is provided with a protective layer of stainless steel material.
- the material of the present invention is simple and the assembly is simple.
- Figure 1 is a schematic structural diagram of the present invention.
- FIG. 2 is a cross-sectional view of the present invention.
- the permanent magnet DC variable frequency electric pump includes a pump body 1 and a pump cover 2.
- the inside of the pump body 1 and the pump cover 2 is a cavity, and the pump cover 2 is arranged on the pump body 1.
- An impeller assembly 3 is installed in the body 1
- a motor 4 that drives the impeller assembly 3 to work and has a rotor 5 inside is installed in the pump body 1
- a control board 6 that controls the operation of the motor 4 is installed in the pump cover 2, and the traditional pump cover 2
- the control board 6 is the main control board 6 and the auxiliary control board 6, which are installed on the pump cover 2 at the same time, and the assembly is more complicated, but the control board 6 of the present invention is single, and the traditional auxiliary control board 6 is integrated into the main control board 6.
- the operation of the motor 4 in the pump body 1 and the indicator outside the pump cover 2 can be controlled at the same time, and the operation of the entire permanent magnet DC variable frequency electric pump can be reflected through the indicator.
- the rotor 5 in the motor 4 is provided with a protective layer 7 , the protective layer 7 is made of stainless steel, and the pump cover 2 is fixed on the pump body 1 by bolts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A permanent magnet direct current variable frequency electric pump, comprising a pump body (1) and a pump cover (2). The pump cover (2) is fixedly limited to the pump body (1) by means of bolts; the interior of the pump body (1) and pump cover (2) is configured as a cavity; the pump cover (2) is disposed on the pump body (1); an impeller assembly (3) is mounted inside of the pump body (1); a motor (4) which drives the impeller assembly (3) to work and which is internally provided with a rotor (5) is disposed within the pump body (1); a control plate (6) for controlling the motor (4) to operate is mounted within the pump cover (2); a protective layer (7) is disposed outside of the rotor in the motor (4), and the protective layer (7) is made of stainless steel. The permanent magnet direct current variable frequency electric pump has the advantages of a simple structure and simple assembly.
Description
本发明属于泵技术领域，涉及一种泵，特别涉及一种永磁直流变频电泵。The invention belongs to the technical field of pumps, and relates to a pump, in particular to a permanent magnet direct current variable frequency electric pump.
常见的电泵包括内置叶轮的泵体以及驱动叶轮工作的电机，泵体上设有出水口以及进水口，工作时，水从进水口进入泵体，经叶轮加速后从出水口喷出。为减小体积、提高转速、降低能耗，同时获得较大的扬程，需要对电泵的结构进行改进，若要达到上述目的，常见的方式是用带变频器的永磁电机代替异步电机，变频器包括电路板以及安装在电路板上的整流桥、IPM模块、芯片、电容等，其中的整流桥和IPM模块具有较高的散热要求，若变频器设置在封闭的、狭小的壳体中，其工作产生的热量不容易散发，热量过高会损坏电子器件，进而影响电泵的使用。现有的变频电泵结构较为繁琐，对减小体积、结构精简不利，不方便维修装配，而且变频电泵中的控制板为主控制板和副控制板，主控制板控制电机的运行，而副控制板控制泵体外指示器显示泵体的运行情况，结构较为复杂。A common electric pump includes a pump body with a built-in impeller and a motor that drives the impeller to work. The pump body is provided with a water outlet and a water inlet. During operation, water enters the pump body from the water inlet, and is accelerated by the impeller and ejected from the water outlet. In order to reduce the volume, increase the speed, reduce the energy consumption, and obtain a larger head at the same time, the structure of the electric pump needs to be improved. To achieve the above purpose, the common way is to replace the asynchronous motor with a permanent magnet motor with a frequency converter. The inverter includes a circuit board and a rectifier bridge, IPM module, chip, capacitor, etc. installed on the circuit board. The rectifier bridge and IPM module have high heat dissipation requirements. If the inverter is installed in a closed, narrow shell , the heat generated by its work is not easy to dissipate, and the excessive heat will damage the electronic devices, thereby affecting the use of the electric pump. The structure of the existing variable frequency electric pump is relatively complicated, which is disadvantageous for reducing the volume, simplifying the structure, and inconvenient for maintenance and assembly. Moreover, the control boards in the variable frequency electric pump are the main control board and the auxiliary control board, and the main control board controls the operation of the motor, while the The auxiliary control board controls the external indicator of the pump to display the operation of the pump body, and the structure is relatively complex.
发明内容SUMMARY OF THE INVENTION
本发明的目的是针对现有技术中存在的上述问题，提供了一种永磁直流变频电泵。The purpose of the present invention is to provide a permanent magnet DC variable frequency electric pump in view of the above problems existing in the prior art.
本发明的目的可通过下列技术方案来实现：一种永磁直流变频电泵，包括泵体和泵盖，其特征在于，所述的泵体和泵盖内部为空腔设置，所述的泵盖设置于泵体上，所述的泵体内安装有叶轮组件，所述的泵体内设置有驱动叶轮组件工作且内部带有转子的电机，所述的泵盖内安装有控制电机运行的控制板，所述电机中的转子外设有保护层，所述的保护层为不锈钢材质。The purpose of the present invention can be achieved through the following technical solutions: a permanent magnet DC variable frequency electric pump, comprising a pump body and a pump cover, characterized in that the inside of the pump body and the pump cover is provided with a cavity, and the pump The cover is arranged on the pump body, the impeller assembly is installed in the pump body, the motor that drives the impeller assembly to work and has a rotor inside is installed in the pump body, and the control board that controls the operation of the motor is installed in the pump cover , the rotor in the motor is provided with a protective layer outside, and the protective layer is made of stainless steel.
在上述的一种永磁直流变频电泵中，所述的泵盖通过螺栓固定限位于泵体上。In the above-mentioned permanent magnet DC variable frequency electric pump, the pump cover is fixed and limited to the pump body by bolts.
与现有技术相比，本永磁直流变频电泵中的控制板为单个，可同时控制泵体内电机的运行，结构变的较为简洁，而且电机中的转子外设有不锈钢材质的保护层，使本发明材料简单，装配简单。Compared with the prior art, the control board in the permanent magnet DC variable frequency electric pump is single, which can control the operation of the motor in the pump at the same time, and the structure becomes more concise, and the rotor in the motor is provided with a protective layer of stainless steel material. The material of the present invention is simple and the assembly is simple.
图1是本发明的结构示意图。Figure 1 is a schematic structural diagram of the present invention.
图2是本发明的剖视图。FIG. 2 is a cross-sectional view of the present invention.
图中，1、泵体；2、泵盖；3、叶轮组件；4、电机；5、转子；6、控制板；7、保护层。In the figure, 1, pump body; 2, pump cover; 3, impeller assembly; 4, motor; 5, rotor; 6, control board; 7, protective layer.
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。The following are specific embodiments of the present invention and combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
如图1、图2所示，本永磁直流变频电泵，包括泵体1和泵盖2，泵体1和泵盖2内部为空腔设置，泵盖2设置于泵体1上，泵体1内安装有叶轮组件3，泵体1内设置有驱动叶轮组件3工作且内部带有转子5的电机4，泵盖2内安装有控制电机4运行的控制板6，传统泵盖2内的控制板6为主控制板6和副控制板6，同时安装在泵盖2上，装配较为复杂，但是本发明的控制板6为单个，将传统的副控制板6集成到主控制板6上，可同时控制泵体1内电机4的运行和泵盖2外部的指示器，并且通过指示器反映整个永磁直流变频电泵的运行情况，电机4中的转子5外设有保护层7，保护层7为不锈钢材质，泵盖2通过螺栓固定限位于泵体1上。As shown in Figure 1 and Figure 2, the permanent magnet DC variable frequency electric pump includes a pump body 1 and a pump cover 2. The inside of the pump body 1 and the pump cover 2 is a cavity, and the pump cover 2 is arranged on the pump body 1. An impeller assembly 3 is installed in the body 1, a motor 4 that drives the impeller assembly 3 to work and has a rotor 5 inside is installed in the pump body 1, a control board 6 that controls the operation of the motor 4 is installed in the pump cover 2, and the traditional pump cover 2 The control board 6 is the main control board 6 and the auxiliary control board 6, which are installed on the pump cover 2 at the same time, and the assembly is more complicated, but the control board 6 of the present invention is single, and the traditional auxiliary control board 6 is integrated into the main control board 6. The operation of the motor 4 in the pump body 1 and the indicator outside the pump cover 2 can be controlled at the same time, and the operation of the entire permanent magnet DC variable frequency electric pump can be reflected through the indicator. The rotor 5 in the motor 4 is provided with a protective layer 7 , the protective layer 7 is made of stainless steel, and the pump cover 2 is fixed on the pump body 1 by bolts.
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.
尽管本文较多地使用了等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。Although such terms are used more frequently in this paper, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the nature of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.
Claims (2)
- 一种永磁直流变频电泵，包括泵体(1)和泵盖(2)，其特征在于，所述的泵体(1)和泵盖(2)内部为空腔设置，所述的泵盖(2)设置于泵体(1)上，所述的泵体(1)内安装有叶轮组件(3)，所述的泵体(1)内设置有驱动叶轮组件(3)工作且内部带有转子(5)的电机(4)，所述的泵盖(2)内安装有控制电机(4)运行的控制板(6)，所述电机(4)中的转子(5)外设有保护层(7)，所述的保护层(7)为不锈钢材质。A permanent magnet direct current variable frequency electric pump, comprising a pump body (1) and a pump cover (2), characterized in that the pump body (1) and the pump cover (2) are provided with cavities inside, and the pump The cover (2) is arranged on the pump body (1), the impeller assembly (3) is installed in the pump body (1), and the driving impeller assembly (3) is arranged in the pump body (1) to work and inside A motor (4) with a rotor (5), a control board (6) for controlling the operation of the motor (4) is installed in the pump cover (2), and the rotor (5) in the motor (4) has a peripheral device There is a protective layer (7), and the protective layer (7) is made of stainless steel.
- 根据权利要求1所述的永磁直流变频电泵，其特征在于，所述的泵盖(2)通过螺栓固定限位于泵体(1)上。The permanent magnet DC variable frequency electric pump according to claim 1, characterized in that, the pump cover (2) is fixed and limited to the pump body (1) by bolts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473803.0 | 2020-12-15 | ||
| CN202011473803.0A CN112412824A (en) | 2020-12-15 | 2020-12-15 | Permanent magnet direct current variable frequency electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022127157A1 true WO2022127157A1 (en) | 2022-06-23 |
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ID=74775083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/112945 WO2022127157A1 (en) | 2020-12-15 | 2021-08-17 | Permanent magnet direct current variable frequency electric pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112412824A (en) |
| WO (1) | WO2022127157A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412824A (en) * | 2020-12-15 | 2021-02-26 | 大福泵业有限公司 | Permanent magnet direct current variable frequency electric pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6365998B1 (en) * | 1998-06-02 | 2002-04-02 | Wilo Gmbh | Canned motor pump with winding carrier |
| WO2010075655A1 (en) * | 2009-01-04 | 2010-07-08 | 常州富邦电气有限公司 | Water pump with permanent-magnet d.c. motor having double commutators |
| CN103443468A (en) * | 2011-03-12 | 2013-12-11 | 格伦德福斯管理联合股份公司 | Heat circulation pump |
| CN203441776U (en) * | 2013-03-21 | 2014-02-19 | 王勇 | Novel EC water pump |
| CN104153999A (en) * | 2014-07-29 | 2014-11-19 | 江苏大学 | Motor-pump-integrated micro high-speed magnetic pump |
| CN205225865U (en) * | 2015-11-27 | 2016-05-11 | 上海奥一泵业制造有限公司 | Water -cooled permanent magnetism frequency conversion shielding pump package |
| CN112412824A (en) * | 2020-12-15 | 2021-02-26 | 大福泵业有限公司 | Permanent magnet direct current variable frequency electric pump |
| CN213928763U (en) * | 2020-12-15 | 2021-08-10 | 大福泵业有限公司 | Permanent magnet direct current variable frequency electric pump |
-
2020
- 2020-12-15 CN CN202011473803.0A patent/CN112412824A/en active Pending
-
2021
- 2021-08-17 WO PCT/CN2021/112945 patent/WO2022127157A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6365998B1 (en) * | 1998-06-02 | 2002-04-02 | Wilo Gmbh | Canned motor pump with winding carrier |
| WO2010075655A1 (en) * | 2009-01-04 | 2010-07-08 | 常州富邦电气有限公司 | Water pump with permanent-magnet d.c. motor having double commutators |
| CN103443468A (en) * | 2011-03-12 | 2013-12-11 | 格伦德福斯管理联合股份公司 | Heat circulation pump |
| CN203441776U (en) * | 2013-03-21 | 2014-02-19 | 王勇 | Novel EC water pump |
| CN104153999A (en) * | 2014-07-29 | 2014-11-19 | 江苏大学 | Motor-pump-integrated micro high-speed magnetic pump |
| CN205225865U (en) * | 2015-11-27 | 2016-05-11 | 上海奥一泵业制造有限公司 | Water -cooled permanent magnetism frequency conversion shielding pump package |
| CN112412824A (en) * | 2020-12-15 | 2021-02-26 | 大福泵业有限公司 | Permanent magnet direct current variable frequency electric pump |
| CN213928763U (en) * | 2020-12-15 | 2021-08-10 | 大福泵业有限公司 | Permanent magnet direct current variable frequency electric pump |
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| Publication number | Publication date |
|---|---|
| CN112412824A (en) | 2021-02-26 |
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